0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/* BEGIN CSTYLED */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Copyright (c) 2009, Intel Corporation.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * All Rights Reserved.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Permission is hereby granted, free of charge, to any person obtaining a
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * copy of this software and associated documentation files (the "Software"),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to deal in the Software without restriction, including without limitation
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and/or sell copies of the Software, and to permit persons to whom the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Software is furnished to do so, subject to the following conditions:
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * The above copyright notice and this permission notice (including the next
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * paragraph) shall be included in all copies or substantial portions of the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * IN THE SOFTWARE.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Eric Anholt <eric@anholt.net>
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Use is subject to license terms.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include <sys/x86_archext.h>
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include <sys/vfs_opreg.h>
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include "drmP.h"
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include "drm.h"
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include "i915_drm.h"
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#include "i915_drv.h"
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#endif /* !roundup */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China#define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic timeout_id_t worktimer_id = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinaextern int drm_mm_init(struct drm_mm *mm,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China unsigned long start, unsigned long size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinaextern void drm_mm_put_block(struct drm_mm_node *cur);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinaextern int choose_addr(struct as *as, caddr_t *addrp, size_t len, offset_t off,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int vacalign, uint_t flags);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_to_gpu_domain(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic void i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic void i915_gem_object_flush_gtt_write_domain(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic void i915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic int i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic int i915_gem_object_set_cpu_read_domain_range(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic void i915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic void i915_gem_object_free_page_list(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic int i915_gem_object_wait_rendering(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinastatic int i915_gem_object_get_page_list(struct drm_gem_object *obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_cleanup_ringbuffer(struct drm_device *dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_init_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_init args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_init *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((args.gtt_start >= args.gtt_end) ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ((args.gtt_start & (PAGE_SIZE - 1)) != 0) ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ((args.gtt_end & (PAGE_SIZE - 1)) != 0)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_init_ioctel invalid arg 0x%lx args.start 0x%lx end 0x%lx", &args, args.gtt_start, args.gtt_end);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->gtt_total = (uint32_t) (args.gtt_end - args.gtt_start);
c1374a13e412c4ec42cba867e57347a0e049a822Surya Prakki (unsigned long) args.gtt_start, dev->gtt_total);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_init_ioctl dev->gtt_total %x, dev_priv->mm.gtt_space 0x%x gtt_start 0x%lx", dev->gtt_total, dev_priv->mm.gtt_space, args.gtt_start);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(dev->gtt_total != 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_get_aperture_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_get_aperture args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.aper_size = (uint64_t)dev->gtt_total;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.aper_available_size = (args.aper_size -
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_read(&dev->pin_memory));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER((struct drm_i915_gem_get_aperture __user *) data, &args, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(" i915_gem_get_aperture_ioctl error! %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_get_aaperture_ioctl called sizeof %d, aper_size 0x%x, aper_available_size 0x%x\n", sizeof(args), dev->gtt_total, args.aper_available_size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Creates a new mm object and returns a handle to it.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_create_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_create args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_create *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.size = (uint64_t) roundup(args.size, PAGE_SIZE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (args.size == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Invalid obj size %d", args.size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Allocate the new object */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_alloc(dev, args.size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to alloc obj");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = drm_gem_handle_create(fpriv, obj, &handlep);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_handle_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.handle = handlep;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER((struct drm_i915_gem_create *) data, &args, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(" gem create error! %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_create_ioctl object name %d, size 0x%lx, list 0x%lx, obj 0x%lx",handlep, args.size, &fpriv->object_idr, obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Reads data from the object referenced by handle.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * On error, the contents of *data are undefined.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_pread_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pread args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_pread __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Bounds check source.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * XXX: This could use review for overflow issues...
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (args.offset > obj->size || args.size > obj->size ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.offset + args.size > obj->size) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_pread_ioctl invalid args");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_cpu_read_domain_range(obj, args.offset, args.size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("pread failed to read domain range ret %d!!!", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China unsigned long unwritten = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t *user_data;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China user_data = (uint32_t *) (uintptr_t) args.data_ptr;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China unwritten = DRM_COPY_TO_USER(user_data, obj->kaddr + args.offset, args.size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (unwritten) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_pread error!!! unwritten %d", unwritten);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_gtt_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pwrite *args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_file *file_priv)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t *user_data;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China unsigned long unwritten = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China user_data = (uint32_t *) (uintptr_t) args->data_ptr;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin(obj, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_gtt_pwrite failed to pin ret %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_to_gtt_domain(obj, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("obj %d write domain 0x%x read domain 0x%x", obj->name, obj->write_domain, obj->read_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China unwritten = DRM_COPY_FROM_USER(obj->kaddr + args->offset, user_data, args->size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (unwritten) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_gtt_pwrite error!!! unwritten %d", unwritten);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_gtt_pwrite error %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_shmem_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pwrite *args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_file *file_priv)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(" i915_gem_shmem_pwrite Not support");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Writes data to the object referenced by handle.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * On error, the contents of the buffer that were to be modified are undefined.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_pwrite_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pwrite args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_FROM_USER(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_pwrite __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_pwrite_ioctl failed to copy from user");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_pwrite_ioctl, obj->name %d",obj->name);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Bounds check destination.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * XXX: This could use review for overflow issues...
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (args.offset > obj->size || args.size > obj->size ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.offset + args.size > obj->size) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_gem_pwrite_ioctl invalid arg");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* We can only do the GTT pwrite on untiled buffers, as otherwise
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * it would end up going through the fenced access, and we'll get
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * different detiling behavior between reading and writing.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * pread/pwrite currently are reading and writing from the CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * perspective, requiring manual detiling by the client.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->tiling_mode == I915_TILING_NONE &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->gtt_total != 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_gtt_pwrite(dev, obj, &args, fpriv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_shmem_pwrite(dev, obj, &args, fpriv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("pwrite failed %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Called when user space prepares to use an object with the CPU, either
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * through the mmap ioctl's mapping or a GTT mapping.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_set_domain_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_set_domain args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_set_domain __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t read_domains = args.read_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t write_domain = args.write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Only handle setting domains to types used by the CPU. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (write_domain & ~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (read_domains & ~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Having something in the write domain implies it's in the read
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * domain, and only that read domain. Enforce that in the request.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (write_domain != 0 && read_domains != write_domain)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("set_domain invalid read or write");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("set_domain_ioctl %p(name %d size 0x%x), %08x %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj, obj->name, obj->size, args.read_domains, args.write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (read_domains & I915_GEM_DOMAIN_GTT) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_to_gtt_domain(obj, write_domain != 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Silently promote "you're not bound, there was nothing to do"
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to success, since the client was just asking us to
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * make sure everything was done.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret == EINVAL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_to_cpu_domain(obj, write_domain != 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_set_domain_ioctl ret %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Called when user space has done writes to this buffer
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_sw_finish_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_sw_finish args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_sw_finish __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: sw_finish %d (%p name %d size 0x%x)\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China __func__, args.handle, obj, obj->name, obj->size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Pinned buffers may be scanout, so flush the cache */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_cpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Maps the contents of an object, returning the address it is mapped
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * While the mapping holds a reference on the contents of the object, it doesn't
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * imply a ref on the object itself.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_mmap_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_mmap args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China caddr_t vvaddr = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China &args, (struct drm_i915_gem_mmap __user *)data,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China sizeof (struct drm_i915_gem_mmap));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = ddi_devmap_segmap(fpriv->dev, (off_t)obj->map->handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ttoproc(curthread)->p_as, &vvaddr, obj->map->size,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China PROT_ALL, PROT_ALL, MAP_SHARED, fpriv->credp);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.addr_ptr = (uint64_t)(uintptr_t)vvaddr;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYTO_WITH_RETURN(
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_mmap __user *)data,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China &args, sizeof (struct drm_i915_gem_mmap));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_free_page_list(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_list == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China kmem_free(obj_priv->page_list,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China btop(obj->size) * sizeof(caddr_t));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_list = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_move_to_active(struct drm_gem_object *obj, uint32_t seqno)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Add a reference if we're newly entering the active list. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!obj_priv->active) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_reference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->active = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Move from whatever list we were on to the tail of execution. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_move_tail(&obj_priv->list,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China &dev_priv->mm.active_list, (caddr_t)obj_priv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->last_rendering_seqno = seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_move_to_flushing(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_move_tail(&obj_priv->list, &dev_priv->mm.flushing_list, (caddr_t)obj_priv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->last_rendering_seqno = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_move_to_inactive(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count != 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_del_init(&obj_priv->list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_move_tail(&obj_priv->list, &dev_priv->mm.inactive_list, (caddr_t)obj_priv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->last_rendering_seqno = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->active) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->active = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Creates a new sequence number, emitting a write of it to the status page
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * plus an interrupt, which will trigger i915_user_interrupt_handler.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Must be called with struct_lock held.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Returned sequence numbers are nonzero on success.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_add_request(struct drm_device *dev, uint32_t flush_domains)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_request *request;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China request = drm_calloc(1, sizeof(*request), DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (request == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to alloc request");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Grab the seqno we're going to make this request be, and bump the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * next (skipping 0 so it can be the reserved no-seqno value).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = dev_priv->mm.next_gem_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.next_gem_seqno++;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.next_gem_seqno == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.next_gem_seqno++;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("add_request seqno = %d dev 0x%lx", seqno, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(4);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(MI_STORE_DWORD_INDEX);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(2);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(MI_USER_INTERRUPT);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China request->seqno = seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China request->emitted_jiffies = jiffies;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China was_empty = list_empty(&dev_priv->mm.request_list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_add_tail(&request->list, &dev_priv->mm.request_list, (caddr_t)request);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Associate any objects on the flushing list matching the write
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * domain we're flushing with our flush.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (flush_domains != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv, *next;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.flushing_list.next, struct drm_i915_gem_object, list),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China next = list_entry(obj_priv->list.next, struct drm_i915_gem_object, list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for(; &obj_priv->list != &dev_priv->mm.flushing_list;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China next = list_entry(next->list.next, struct drm_i915_gem_object, list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj = obj_priv->obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((obj->write_domain & flush_domains) ==
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_active(obj, seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (was_empty && !dev_priv->mm.suspended)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* change to delay HZ and then run work (not insert to workqueue of Linux) */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China worktimer_id = timeout(i915_gem_retire_work_handler, (void *) dev, DRM_HZ);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem: schedule_delayed_work");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Command execution barrier
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Ensures that all commands in the ring are finished
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * before signalling the CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_retire_commands(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t cmd = MI_FLUSH | MI_NO_WRITE_FLUSH;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t flush_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* The sampler always gets flushed on i965 (sigh) */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (IS_I965G(dev))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China flush_domains |= I915_GEM_DOMAIN_SAMPLER;
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(2);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(0); /* noop */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China return flush_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Moves buffers associated only with the given active seqno from the active
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to inactive list, potentially freeing them.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_retire_request(struct drm_device *dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_request *request)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Move any buffers on the active list that are no longer referenced
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * by the ringbuffer to the flushing/inactive lists as appropriate.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (!list_empty(&dev_priv->mm.active_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.active_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = obj_priv->obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the seqno being retired doesn't match the oldest in the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * list, then the oldest in the list must still be newer than
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->last_rendering_seqno != request->seqno)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: retire %d moves to inactive list %p\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China __func__, request->seqno, obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj->write_domain != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_flushing(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_inactive(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Returns true if seq1 is later than seq2.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_seqno_passed(uint32_t seq1, uint32_t seq2)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China return (int32_t)(seq1 - seq2) >= 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_get_gem_seqno(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China return READ_HWSP(dev_priv, I915_GEM_HWS_INDEX);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This function clears the request list as sequence numbers are passed.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_retire_requests(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = i915_get_gem_seqno(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (!list_empty(&dev_priv->mm.request_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_request *request;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t retiring_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China request = (struct drm_i915_gem_request *)(uintptr_t)(dev_priv->mm.request_list.next->contain_ptr);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China retiring_seqno = request->seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (i915_seqno_passed(seqno, retiring_seqno) ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_retire_request(dev, request);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_del(&request->list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(request, sizeof(*request), DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_retire_work_handler(void *device)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = (struct drm_device *)device;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Return if gem idle */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (worktimer_id == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_retire_requests(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!dev_priv->mm.suspended && !list_empty(&dev_priv->mm.request_list))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem: schedule_delayed_work");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China worktimer_id = timeout(i915_gem_retire_work_handler, (void *) dev, DRM_HZ);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * i965_reset - reset chip after a hang
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * @dev: drm device to reset
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * @flags: reset domains
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Reset the chip. Useful if a hang is detected.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Procedure is fairly simple:
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - reset the chip using the reset reg
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - re-init context state
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - re-init hardware status page
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - re-init ring buffer
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - re-init interrupt state
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * - re-init display
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinavoid i965_reset(struct drm_device *dev, u8 flags)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ddi_acc_handle_t conf_hdl;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int timeout = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (flags & GDRST_FULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_save_display(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (pci_config_setup(dev->dip, &conf_hdl) != DDI_SUCCESS) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(("i915_reset: pci_config_setup fail"));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Set the reset bit, wait for reset, then clear it. Hardware
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * will clear the status bit (bit 1) when it's actually ready
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * for action again.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China gdrst = pci_config_get8(conf_hdl, GDRST);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China pci_config_put8(conf_hdl, GDRST, gdrst | flags);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drv_usecwait(50);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China pci_config_put8(conf_hdl, GDRST, gdrst | 0xfe);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* ...we don't want to loop forever though, 500ms should be plenty */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drv_usecwait(100);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China gdrst = pci_config_get8(conf_hdl, GDRST);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China } while ((gdrst & 2) && (timeout++ < 5));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Ok now get things going again... */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Everything depends on having the GTT running, so we need to start
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * there. Fortunately we don't need to do this unless we reset the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * chip at a PCI level.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Next we need to restore the context, but we don't use those
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * yet either...
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Ring buffer needs to be re-initialized in the KMS case, or if X
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * was running at the time of the reset (i.e. we weren't VT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * switched away).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!dev_priv->mm.suspended) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_ring_buffer_t *ring = &dev_priv->ring;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj = ring->ring_obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.suspended = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Stop the ring if it's running. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_CTL, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_TAIL, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_HEAD, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Initialize the ring. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_START, obj_priv->gtt_offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_CTL,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ((obj->size - 4096) & RING_NR_PAGES) |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China RING_NO_REPORT |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_kernel_lost_context(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Display needs restore too...
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (flags & GDRST_FULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_restore_display(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Waits for a sequence number to be signaled, and cleans up the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * request and object lists appropriately for that event.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_wait_request(struct drm_device *dev, uint32_t seqno)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(seqno != 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!i915_seqno_passed(i915_get_gem_seqno(dev), seqno)) {
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China if (IS_IGDNG(dev))
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China ier = I915_READ(DEIER) | I915_READ(GTIER);
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China ier = I915_READ(IER);
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China DRM_ERROR("something (likely vbetool) disabled "
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China "interrupts, re-enabling\n");
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China (void) i915_driver_irq_preinstall(dev);
2e6e901d9406e1a048063c872149376a6bf7cb63miao chen - Sun Microsystems - Beijing China i915_driver_irq_postinstall(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.waiting_gem_seqno = seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_user_irq_on(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_WAIT(ret, &dev_priv->irq_queue,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (i915_seqno_passed(i915_get_gem_seqno(dev), seqno) ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_user_irq_off(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.waiting_gem_seqno = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.wedged) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* GPU maybe hang, reset needed*/
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret == -2 && (seqno > i915_get_gem_seqno(dev))) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (IS_I965G(dev)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("GPU hang detected try to reset ... wait for irq_queue seqno %d, now seqno %d", seqno, i915_get_gem_seqno(dev));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i965_reset(dev, GDRST_RENDER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_retire_requests(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("GPU hang detected.... reboot required");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Directly dispatch request retiring. While we have the work queue
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to handle this, the waiter on a request often wants an associated
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * buffer to have made it to the inactive list, and we would need
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * a separate wait queue to handle that.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_retire_requests(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_flush(struct drm_device *dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t invalidate_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t flush_domains)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: invalidate %08x flush %08x\n", __func__,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China invalidate_domains, flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (flush_domains & I915_GEM_DOMAIN_CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_agp_chipset_flush(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((invalidate_domains | flush_domains) & ~(I915_GEM_DOMAIN_CPU |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_GEM_DOMAIN_GTT)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * read/write caches:
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_RENDER is always invalidated, but is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * also flushed at 2d versus 3d pipeline switches.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * read-only caches:
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * MI_READ_FLUSH is set, and is always flushed on 965.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_COMMAND may not exist?
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidated when MI_EXE_FLUSH is set.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_VERTEX, which exists on 965, is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidated with every MI_FLUSH.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * are flushed at any MI_FLUSH.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China cmd = MI_FLUSH | MI_NO_WRITE_FLUSH;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((invalidate_domains|flush_domains) &
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_GEM_DOMAIN_RENDER)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China cmd &= ~MI_NO_WRITE_FLUSH;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!IS_I965G(dev)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * On the 965, the sampler cache always gets flushed
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and this bit is reserved.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China cmd |= MI_READ_FLUSH;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China cmd |= MI_EXE_FLUSH;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: queue flush %08x to ring\n", __func__, cmd);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(2);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(0); /* noop */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Ensures that all rendering to the object has completed and the object is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * safe to unbind from the GTT or access from the CPU.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_wait_rendering(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int ret, seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* This function only exists to support waiting for existing rendering,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * not for emitting required flushes.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if((obj->write_domain & I915_GEM_GPU_DOMAINS) != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("write domain should not be GPU DOMAIN %d", obj_priv->active);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If there is rendering queued on the buffer being evicted, wait for
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->active) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: object %d %p wait for seqno %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China __func__, obj->name, obj, obj_priv->last_rendering_seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = obj_priv->last_rendering_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (seqno == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("last rendering maybe finished");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_wait_request(dev, seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("%s: i915_wait_request request->seqno %d now %d\n", __func__, seqno, i915_get_gem_seqno(dev));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Unbinds an object from the GTT aperture.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_unbind(struct drm_gem_object *obj, uint32_t type)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Attempting to unbind pinned buffer\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Wait for any rendering to complete
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_wait_rendering(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("wait_rendering failed: %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Move the object to the CPU domain to ensure that
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * any possible CPU writes while it's not in the GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * are flushed when we go to remap it. This will
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * also ensure that all pending GPU writes are finished
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * before we unbind.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_to_cpu_domain(obj, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("set_domain failed: %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!obj_priv->agp_mem) {
c1374a13e412c4ec42cba867e57347a0e049a822Surya Prakki (void) drm_agp_unbind_pages(dev, obj->size / PAGE_SIZE,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->agp_mem = -1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!obj_priv->active);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_free_page_list(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_dec(&dev->gtt_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_sub(obj->size, &dev->gtt_memory);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_mm_put_block(obj_priv->gtt_space);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_space = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Remove ourselves from the LRU list if present. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!list_empty(&obj_priv->list))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_del_init(&obj_priv->list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_evict_something(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If there's an inactive buffer available now, grab it
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!list_empty(&dev_priv->mm.inactive_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.inactive_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = obj_priv->obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj_priv->pin_count != 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: evicting %d\n", __func__, obj->name);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj_priv->active));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Wait on the rendering and unbind the buffer. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_unbind(obj, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we didn't get anything, but the ring is still processing
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * things, wait for one of those things to finish and hopefully
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * leave us a buffer to evict.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!list_empty(&dev_priv->mm.request_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_request *request;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China request = list_entry(dev_priv->mm.request_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_request,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_wait_request(dev, request->seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* if waiting caused an object to become inactive,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * then loop around and wait for it. Otherwise, we
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * assume that waiting freed and unbound something,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * so there should now be some space in the GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!list_empty(&dev_priv->mm.inactive_list))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we didn't have anything on the request list but there
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * are buffers awaiting a flush, emit one and try again.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * When we wait on it, those buffers waiting for that flush
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * will get moved to inactive.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!list_empty(&dev_priv->mm.flushing_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.flushing_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = obj_priv->obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_flush(dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) i915_add_request(dev, obj->write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("inactive empty %d request empty %d "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "flushing empty %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_empty(&dev_priv->mm.inactive_list),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_empty(&dev_priv->mm.request_list),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_empty(&dev_priv->mm.flushing_list));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we didn't do any of the above, there's nothing to be done
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and we just can't fit it in.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_evict_everything(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_evict_something(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret == ENOMEM)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("evict_everything ret %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Finds free space in the GTT aperture and binds the object there.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_bind_to_gtt(struct drm_gem_object *obj, uint32_t alignment)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_mm_node *free_space;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int page_count, ret;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.suspended)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (alignment == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China alignment = PAGE_SIZE;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (alignment & (PAGE_SIZE - 1)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Invalid object alignment requested %u\n", alignment);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Already bind!!");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China free_space = drm_mm_search_free(&dev_priv->mm.gtt_space,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (unsigned long) obj->size, alignment, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (free_space != NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_space = drm_mm_get_block(free_space, (unsigned long) obj->size,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space != NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_space->private = obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_offset = obj_priv->gtt_space->start;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the gtt is empty and we're still having trouble
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * fitting our object in, we're out of memory.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (list_empty(&dev_priv->mm.inactive_list) &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_empty(&dev_priv->mm.flushing_list) &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_empty(&dev_priv->mm.active_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("GTT full, but LRU list empty\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_evict_something(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to evict a buffer %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China goto search_free;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_get_page_list(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_mm_put_block(obj_priv->gtt_space);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_space = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("bind to gtt failed to get page list");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China page_count = obj->size / PAGE_SIZE;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Create an AGP memory structure pointing at our pages, and bind it
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * into the GTT.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("Binding object %d of page_count %d at gtt_offset 0x%x obj->pfnarray = 0x%lx",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->name, page_count, obj_priv->gtt_offset, obj->pfnarray);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->agp_mem = drm_agp_bind_pages(dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->agp_mem) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_free_page_list(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_mm_put_block(obj_priv->gtt_space);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->gtt_space = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to bind pages obj %d, obj 0x%lx", obj->name, obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_inc(&dev->gtt_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_add(obj->size, &dev->gtt_memory);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Assert that the object is not currently in any GPU domain. As it
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * wasn't in the GTT, there shouldn't be any way it could have been in
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj->read_domains & ~(I915_GEM_DOMAIN_CPU|I915_GEM_DOMAIN_GTT)));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj->write_domain & ~(I915_GEM_DOMAIN_CPU|I915_GEM_DOMAIN_GTT)));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_clflush_object(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we don't have a page list set up, then we're not pinned
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to GPU, and we can ignore the cache flush because it'll happen
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * again at bind time.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_list == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_clflush_pages(obj_priv->page_list, obj->size / PAGE_SIZE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/** Flushes any GPU write domain for the object if it's dirty. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((obj->write_domain & I915_GEM_GPU_DOMAINS) == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Queue the GPU write cache flushing we need. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_flush(dev, 0, obj->write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = i915_add_request(dev, obj->write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("flush_gpu_write_domain seqno = %d", seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_active(obj, seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/** Flushes the GTT write domain for the object if it's dirty. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_flush_gtt_write_domain(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj->write_domain != I915_GEM_DOMAIN_GTT)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* No actual flushing is required for the GTT write domain. Writes
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * to it immediately go to main memory as far as we know, so there's
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * no chipset flush. It also doesn't land in render cache.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/** Flushes the CPU write domain for the object if it's dirty. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj->write_domain != I915_GEM_DOMAIN_CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_clflush_object(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_agp_chipset_flush(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Moves a single object to the GTT read, and possibly write domain.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This function returns when the move is complete, including waiting on
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flushes to occur.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj, int write)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Not valid to be called on unbound objects. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_gpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Wait on any GPU rendering and flushing to occur. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_wait_rendering(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("set_to_gtt_domain wait_rendering ret %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we're writing through the GTT domain, then CPU and GPU caches
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * will need to be invalidated at next use.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains &= I915_GEM_DOMAIN_GTT;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_cpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_object_set_to_gtt_domain obj->read_domains %x ", obj->read_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* It should now be out of any other write domains, and we can update
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the domain values for our changes.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!((obj->write_domain & ~I915_GEM_DOMAIN_GTT) != 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains |= I915_GEM_DOMAIN_GTT;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = I915_GEM_DOMAIN_GTT;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->dirty = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Moves a single object to the CPU read, and possibly write domain.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This function returns when the move is complete, including waiting on
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flushes to occur.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj, int write)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_gpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Wait on any GPU rendering and flushing to occur. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_wait_rendering(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_gtt_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we have a partially-valid cache of the object in the CPU,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * finish invalidating it and free the per-page flags.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_set_to_full_cpu_read_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Flush the CPU cache if it's still invalid. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((obj->read_domains & I915_GEM_DOMAIN_CPU) == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_clflush_object(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_agp_chipset_flush(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains |= I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* It should now be out of any other write domains, and we can update
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the domain values for our changes.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!((obj->write_domain & ~I915_GEM_DOMAIN_CPU) != 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we're writing through the CPU, then the GPU read domains will
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * need to be invalidated at next use.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains &= I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Set the next domain for the specified object. This
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * may not actually perform the necessary flushing/invaliding though,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * as that may want to be batched with other set_domain operations
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This is (we hope) the only really tricky part of gem. The goal
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * is fairly simple -- track which caches hold bits of the object
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and make sure they remain coherent. A few concrete examples may
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * help to explain how it works. For shorthand, we use the notation
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * (read_domains, write_domain), e.g. (CPU, CPU) to indicate the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * a pair of read and write domain masks.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Case 1: the batch buffer
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Written by CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Mapped to GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Unmapped from GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Let's take these a step at a time
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Pages allocated from the kernel may still have
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * cache contents, so we set them to (CPU, CPU) always.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Written by CPU (using pwrite)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * The pwrite function calls set_domain (CPU, CPU) and
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * this function does nothing (as nothing changes)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Mapped by GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This function asserts that the object is not
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * currently in any GPU-based read or write domains
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * i915_gem_execbuffer calls set_domain (COMMAND, 0).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * As write_domain is zero, this function adds in the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * current read domains (CPU+COMMAND, 0).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains is set to CPU.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains is set to COMMAND
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * clflush is run to get data out of the CPU caches
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * then i915_dev_set_domain calls i915_gem_flush to
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * emit an MI_FLUSH and drm_agp_chipset_flush
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Unmapped from GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * i915_gem_object_unbind calls set_domain (CPU, CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains and invalidate_domains end up both zero
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * so no flushing/invalidating happens
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Case 2: The shared render buffer
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Mapped to GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Read/written by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. set_domain to (CPU,CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Read/written by CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 6. Read/written by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Same as last example, (CPU, CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Mapped to GTT
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Nothing changes (assertions find that it is not in the GPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Read/written by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * execbuffer calls set_domain (RENDER, RENDER)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains gets CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains gets GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * clflush (obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * MI_FLUSH and drm_agp_chipset_flush
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. set_domain (CPU, CPU)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains gets GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains gets CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * wait_rendering (obj) to make sure all drawing is complete.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This will include an MI_FLUSH to get the data from GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * clflush (obj) to invalidate the CPU cache
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Another MI_FLUSH in i915_gem_flush (eliminate this somehow?)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Read/written by CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * cache lines are loaded and dirtied
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 6. Read written by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Same as last GPU access
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Case 3: The constant buffer
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Written by CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. Updated (written) by CPU again
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 2. Written by CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 3. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * (CPU+RENDER, 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains = CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains = RENDER
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * clflush (obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * drm_agp_chipset_flush
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 4. Updated (written) by CPU again
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains = 0 (no previous write domain)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains = 0 (no new read domains)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * 5. Read by GPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * (CPU+RENDER, 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flush_domains = CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * invalidate_domains = RENDER
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * clflush (obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * drm_agp_chipset_flush
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_to_gpu_domain(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t write_domain)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t invalidate_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t flush_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: object %p read %08x -> %08x write %08x -> %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains, read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain, write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * If the object isn't moving to a new write domain,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * let the object stay in multiple read domains
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (write_domain == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China read_domains |= obj->read_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->dirty = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Flush the current write domain if
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the new read domains don't match. Invalidate
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * any read domains which differ from the old
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj->write_domain && obj->write_domain != read_domains) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China flush_domains |= obj->write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China invalidate_domains |= read_domains & ~obj->write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Invalidate any read caches which may have
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * stale data. That is, any new read domains.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China invalidate_domains |= read_domains & ~obj->read_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((flush_domains | invalidate_domains) & I915_GEM_DOMAIN_CPU) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: CPU domain flush %08x invalidate %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China __func__, flush_domains, invalidate_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_clflush_object(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((write_domain | flush_domains) != 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains = read_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->invalidate_domains |= invalidate_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->flush_domains |= flush_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: read %08x write %08x invalidate %08x flush %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains, obj->write_domain,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->invalidate_domains, dev->flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Moves the object from a partially CPU read to a full one.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Note that this only resolves i915_gem_object_set_cpu_read_domain_range(),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * and doesn't handle transitioning from !(read_domains & I915_GEM_DOMAIN_CPU).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!obj_priv->page_cpu_valid)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we're partially in the CPU read domain, finish moving it in.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj->read_domains & I915_GEM_DOMAIN_CPU) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i <= (obj->size - 1) / PAGE_SIZE; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid[i])
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_clflush_pages(obj_priv->page_list + i, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_agp_chipset_flush(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Free the page_cpu_valid mappings which are now stale, whether
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * or not we've got I915_GEM_DOMAIN_CPU.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(obj_priv->page_cpu_valid, obj->size / PAGE_SIZE,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_cpu_valid = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Set the CPU read domain on a range of the object.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * The object ends up with I915_GEM_DOMAIN_CPU in its read flags although it's
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * not entirely valid. The page_cpu_valid member of the object flags which
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * pages have been flushed, and will be respected by
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * i915_gem_object_set_to_cpu_domain() if it's called on to get a valid mapping
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * of the whole object.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This function returns when the move is complete, including waiting on
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flushes to occur.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_set_cpu_read_domain_range(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t offset, uint64_t size)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (offset == 0 && size == obj->size)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China return i915_gem_object_set_to_cpu_domain(obj, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_gpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Wait on any GPU rendering and flushing to occur. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_wait_rendering(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_gtt_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we're already fully in the CPU read domain, we're done. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid == NULL &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (obj->read_domains & I915_GEM_DOMAIN_CPU) != 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Otherwise, create/clear the per-page CPU read domain flag if we're
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * newly adding I915_GEM_DOMAIN_CPU
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_cpu_valid = drm_calloc(1, obj->size / PAGE_SIZE,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China } else if ((obj->read_domains & I915_GEM_DOMAIN_CPU) == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(obj_priv->page_cpu_valid, 0, obj->size / PAGE_SIZE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Flush the cache on any pages that are still invalid from the CPU's
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = offset / PAGE_SIZE; i <= (offset + size - 1) / PAGE_SIZE;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid[i])
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_clflush_pages(obj_priv->page_list + i, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_cpu_valid[i] = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* It should now be out of any other write domains, and we can update
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the domain values for our changes.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!((obj->write_domain & ~I915_GEM_DOMAIN_CPU) != 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains |= I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Pin an object to the GTT and evaluate the relocations landing in it.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_file *file_priv,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_exec_object *entry)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_relocation_entry reloc;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_relocation_entry __user *relocs;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Choose the GTT offset for our buffer and put it there. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin(obj, (uint32_t) entry->alignment);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("failed to pin");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China entry->offset = obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China relocs = (struct drm_i915_gem_relocation_entry __user *)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (uintptr_t) entry->relocs_ptr;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Apply the relocations, using the GTT aperture to avoid cache
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flushing requirements.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < entry->relocation_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *target_obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *target_obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t reloc_val, reloc_offset, *reloc_entry;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_FROM_USER(&reloc, relocs + i, sizeof(reloc));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("failed to copy from user");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China target_obj = drm_gem_object_lookup(file_priv,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.target_handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (target_obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China target_obj_priv = target_obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* The target buffer should have appeared before us in the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * exec_object list, so it should have a GTT space bound by now.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (target_obj_priv->gtt_space == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("No GTT space found for object %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.target_handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (reloc.offset > obj->size - 4) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Relocation beyond object bounds: "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "obj %p target %d offset %d size %d.\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj, reloc.target_handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.offset, (int) obj->size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (reloc.offset & 3) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Relocation not 4-byte aligned: "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "obj %p target %d offset %d.\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj, reloc.target_handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (reloc.write_domain & I915_GEM_DOMAIN_CPU ||
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.read_domains & I915_GEM_DOMAIN_CPU) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("reloc with read/write CPU domains: "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "obj %p target %d offset %d "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "read %08x write %08x",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj, reloc.target_handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (reloc.write_domain && target_obj->pending_write_domain &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.write_domain != target_obj->pending_write_domain) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Write domain conflict: "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "obj %p target %d offset %d "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "new %08x old %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj, reloc.target_handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.write_domain,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China target_obj->pending_write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: obj %p offset %08x target %d "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "read %08x write %08x gtt %08x "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "presumed %08x delta %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.target_handle,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.write_domain,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) target_obj_priv->gtt_offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (int) reloc.presumed_offset,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China target_obj->pending_read_domains |= reloc.read_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China target_obj->pending_write_domain |= reloc.write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the relocation already has the right value in it, no
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * more work needs to be done.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (target_obj_priv->gtt_offset == reloc.presumed_offset) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_set_to_gtt_domain(obj, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Map the page containing the relocation we're going to
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int reloc_base = (reloc.offset & ~(PAGE_SIZE-1));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc_offset = reloc.offset & (PAGE_SIZE-1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc_entry = (uint32_t *)(uintptr_t)(obj_priv->page_list[reloc_base/PAGE_SIZE] + reloc_offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc_val = target_obj_priv->gtt_offset + reloc.delta;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China *reloc_entry = reloc_val;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Write the updated presumed offset for this entry back out
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China reloc.presumed_offset = target_obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER(relocs + i, &reloc, sizeof(reloc));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("%s: Failed to copy to user ret %d", __func__, ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(target_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/** Dispatch a batchbuffer to the ring
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_dispatch_gem_execbuffer(struct drm_device *dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_execbuffer *exec,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t exec_offset)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_clip_rect __user *boxes = (struct drm_clip_rect __user *)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (uintptr_t) exec->cliprects_ptr;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int nbox = exec->num_cliprects;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int i = 0, count;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t exec_start, exec_len;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_start = exec_offset + exec->batch_start_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_len = exec->batch_len;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if ((exec_start | exec_len) & 0x7) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("alignment\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!exec_start) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("wrong arg");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China count = nbox ? nbox : 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (i < nbox) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int ret = i915_emit_box(dev, boxes, i,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec->DR1, exec->DR4);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("i915_emit_box %d DR1 0x%lx DRI2 0x%lx", ret, exec->DR1, exec->DR4);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (IS_I830(dev) || IS_845G(dev)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(4);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(MI_BATCH_BUFFER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(exec_start | MI_BATCH_NON_SECURE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(exec_start + exec_len - 4);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China BEGIN_LP_RING(2);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (IS_I965G(dev)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(MI_BATCH_BUFFER_START |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China MI_BATCH_NON_SECURE_I965);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(exec_start);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(MI_BATCH_BUFFER_START |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China OUT_RING(exec_start | MI_BATCH_NON_SECURE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ADVANCE_LP_RING();
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* XXX breadcrumb */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/* Throttle our rendering by waiting until the ring has completed our requests
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * emitted over 20 msec ago.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * This should get us reasonable parallelism between CPU and GPU but also
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * relatively low latency when blocking on a particular request to finish.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file_priv)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = i915_file_priv->mm.last_gem_throttle_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_file_priv->mm.last_gem_throttle_seqno =
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_file_priv->mm.last_gem_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_wait_request(dev, seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("%s: i915_wait_request request->seqno %d now %d\n", __func__, seqno, i915_get_gem_seqno(dev));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_execbuffer(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_file_private *i915_file_priv = fpriv->driver_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_execbuffer args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_exec_object *exec_list = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object **object_list = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *batch_obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int ret = 0, i, pinned = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint64_t exec_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno, flush_domains;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_execbuffer __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("buffer_count %d len %x\n", args.buffer_count, args.batch_len);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (args.buffer_count < 1) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("execbuf with %d buffers\n", args.buffer_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Copy in the exec list from userland */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_list = drm_calloc(sizeof(*exec_list), args.buffer_count,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China object_list = drm_calloc(sizeof(*object_list), args.buffer_count,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (exec_list == NULL || object_list == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to allocate exec or object list "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "for %d buffers\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.buffer_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China goto pre_mutex_err;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_FROM_USER(exec_list,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_exec_object __user *)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (uintptr_t) args.buffers_ptr,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China sizeof(*exec_list) * args.buffer_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("copy %d exec entries failed %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.buffer_count, ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China goto pre_mutex_err;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.wedged) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Execbuf while wedged\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.suspended) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Execbuf while VT-switched.\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Look up object handles */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China object_list[i] = drm_gem_object_lookup(fpriv,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_list[i].handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (object_list[i] == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Invalid object handle %d at index %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_list[i].handle, i);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = object_list[i]->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->in_execbuffer) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Object[%d] (%d) %p appears more than once in object list in args.buffer_count %d \n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i, object_list[i]->name, object_list[i], args.buffer_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->in_execbuffer = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Pin and relocate */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (pin_tries = 0; ; pin_tries++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China object_list[i]->pending_read_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China object_list[i]->pending_write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin_and_relocate(object_list[i],
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China &exec_list[i]);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Not all object pinned");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China pinned = i + 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("gem_execbuffer pin_relocate success");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* error other than GTT full, or we've already tried again */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != ENOMEM || pin_tries >= 1) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != ERESTART)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to pin buffers %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* unpin all of our buffers */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < pinned; i++)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(object_list[i]);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* evict everyone we can from the aperture */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_evict_everything(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Set the pending read domains for the batch buffer to COMMAND */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China batch_obj = object_list[args.buffer_count-1];
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China batch_obj->pending_read_domains = I915_GEM_DOMAIN_COMMAND;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China batch_obj->pending_write_domain = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Zero the gloabl flush/invalidate flags. These
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * will be modified as each object is bound to the
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->invalidate_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->flush_domains = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj = object_list[i];
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Compute new gpu domains and update invalidate/flush */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_set_to_gpu_domain(obj,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->pending_read_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->pending_write_domain);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->invalidate_domains | dev->flush_domains) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: invalidate_domains %08x flush_domains %08x Then flush\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->invalidate_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_flush(dev,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->invalidate_domains,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev->flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->flush_domains) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) i915_add_request(dev, dev->flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj = object_list[i];
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = obj->pending_write_domain;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China exec_offset = exec_list[args.buffer_count - 1].offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Exec the batchbuffer */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_dispatch_gem_execbuffer(dev, &args, exec_offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("dispatch failed %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Ensure that the commands in the batch buffer are
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * finished before the interrupt fires
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China flush_domains = i915_retire_commands(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * Get a seqno representing the execution of the current buffer,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * which we can wait on. We would like to mitigate these interrupts,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * likely by only creating seqnos occasionally (so that we have
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * *some* interrupts representing completion of buffers that we can
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * wait on when trying to clear up gtt space).
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = i915_add_request(dev, flush_domains);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(seqno == 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_file_priv->mm.last_gem_seqno = seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj = object_list[i];
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_active(obj, seqno);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: move to exec list %p\n", __func__, obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (object_list != NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < pinned; i++)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(object_list[i]);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0; i < args.buffer_count; i++) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (object_list[i]) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = object_list[i]->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->in_execbuffer = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(object_list[i]);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Copy the new buffer offsets back to the user's exec list. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER((struct drm_i915_relocation_entry __user *)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (uintptr_t) args.buffers_ptr,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China sizeof(*exec_list) * args.buffer_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("failed to copy %d exec entries "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "back to user (%d)\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.buffer_count, ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(object_list, sizeof(*object_list) * args.buffer_count,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(exec_list, sizeof(*exec_list) * args.buffer_count,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->gtt_space == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_bind_to_gtt(obj, alignment);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failure to bind: %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->pin_count++;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the object is not active and not pending a flush,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * remove it from the inactive list
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count == 1) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_inc(&dev->pin_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_add(obj->size, &dev->pin_memory);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!obj_priv->active &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (obj->write_domain & ~(I915_GEM_DOMAIN_CPU |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_GEM_DOMAIN_GTT)) == 0 &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China !list_empty(&obj_priv->list))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_del_init(&obj_priv->list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_unpin(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_device *dev = obj->dev;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->pin_count--;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj_priv->pin_count < 0));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(!(obj_priv->gtt_space == NULL));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the object is no longer pinned, and is
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * neither active nor being flushed, then stick it on
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the inactive list
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!obj_priv->active &&
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (obj->write_domain & ~(I915_GEM_DOMAIN_CPU |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_GEM_DOMAIN_GTT)) == 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China list_move_tail(&obj_priv->list,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China &dev_priv->mm.inactive_list, (caddr_t)obj_priv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_dec(&dev->pin_count);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China atomic_sub(obj->size, &dev->pin_memory);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_pin_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pin args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_pin __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Bad handle in i915_gem_pin_ioctl(): %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_pin_ioctl obj->name %d", obj->name);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_filp != NULL && obj_priv->pin_filp != fpriv) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Already pinned in i915_gem_pin_ioctl(): %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->user_pin_count++;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->pin_filp = fpriv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->user_pin_count == 1) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin(obj, args.alignment);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* XXX - flush the CPU caches for pinned objects
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * as the X server doesn't manage domains yet
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_flush_cpu_write_domain(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.offset = obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER((struct drm_i915_gem_pin __user *) data, &args, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(" gem pin ioctl error! %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_unpin_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_pin args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_pin __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Bad handle in i915_gem_unpin_ioctl(): %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_unpin_ioctl, obj->name %d", obj->name);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_filp != fpriv) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Not pinned by caller in i915_gem_pin_ioctl(): %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->user_pin_count--;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->user_pin_count == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->pin_filp = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_busy_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_busy args;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_COPYFROM_WITH_RETURN(&args,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (struct drm_i915_gem_busy __user *) data, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_lookup(fpriv, args.handle);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Bad handle in i915_gem_busy_ioctl(): %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Don't count being on the flushing list against the object being
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * done. Otherwise, a buffer left on the flushing list but not getting
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * flushed (because nobody's flushing that domain) won't ever return
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * unbusy and get reused by libdrm's bo cache. The other expected
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * consumer of this interface, OpenGL's occlusion queries, also specs
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * that the objects get unbusy "eventually" without any interference.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China args.busy = obj_priv->active && obj_priv->last_rendering_seqno != 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("i915_gem_busy_ioctl call obj->name %d busy %d", obj->name, args.busy);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = DRM_COPY_TO_USER((struct drm_i915_gem_busy __user *) data, &args, sizeof(args));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR(" gem busy error! %d", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_throttle_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China return i915_gem_ring_throttle(dev, fpriv);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_object_get_page_list(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_list)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China pgcnt_t np = btop(obj->size);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_list = kmem_zalloc(np * sizeof(caddr_t), KM_SLEEP);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_list == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Faled to allocate page list\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China for (i = 0, va = obj->kaddr; i < np; i++, va += PAGESIZE) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->page_list[i] = va;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinaint i915_gem_init_object(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = drm_calloc(1, sizeof(*obj_priv), DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * We've just allocated pages from the kernel,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * so they've just been written by the CPU with
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * zeros. They'll need to be clflushed before we
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * use them with the GPU.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->write_domain = I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->read_domains = I915_GEM_DOMAIN_CPU;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj->driver_private = obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->obj = obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China INIT_LIST_HEAD(&obj_priv->list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinavoid i915_gem_free_object(struct drm_gem_object *obj)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (obj_priv->pin_count > 0)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: obj %d",__func__, obj->name);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) i915_gem_object_unbind(obj, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->page_cpu_valid != NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(obj_priv->page_cpu_valid, obj->size / PAGE_SIZE, DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_free(obj->driver_private, sizeof(*obj_priv), DRM_MEM_DRIVER);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China/** Unbinds all objects that are on the given buffer list. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_evict_from_list(struct drm_device *dev, struct list_head *head, uint32_t type)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (!list_empty(head)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(head->next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = obj_priv->obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj_priv->pin_count != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Pinned object in unbind list\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("%s: obj %d type %d",__func__, obj->name, type);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_unbind(obj, type);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Error unbinding object in LeaveVT: %d\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_idle(struct drm_device *dev, uint32_t type)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China uint32_t seqno, cur_seqno, last_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China int stuck, ret;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.suspended || dev_priv->ring.ring_obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Hack! Don't let anybody do execbuf while we don't control the chip.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * We need to replace this with a semaphore, or something.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.suspended = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Cancel the retire work handler, wait for it to finish if running
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (worktimer_id != NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) untimeout(worktimer_id);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China worktimer_id = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_kernel_lost_context(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Flush the GPU along with all non-CPU write domains
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_flush(dev, ~(I915_GEM_DOMAIN_CPU|I915_GEM_DOMAIN_GTT),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ~(I915_GEM_DOMAIN_CPU|I915_GEM_DOMAIN_GTT));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China seqno = i915_add_request(dev, ~(I915_GEM_DOMAIN_CPU |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_GEM_DOMAIN_GTT));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (seqno == 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.waiting_gem_seqno = seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China last_seqno = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China cur_seqno = i915_get_gem_seqno(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (i915_seqno_passed(cur_seqno, seqno))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (last_seqno == cur_seqno) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (stuck++ > 100) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("hardware wedged\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged = 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_WAKEUP(&dev_priv->irq_queue);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_UDELAY(10);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China last_seqno = cur_seqno;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.waiting_gem_seqno = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_retire_requests(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Empty the active and flushing lists to inactive. If there's
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * anything left at this point, it means that we're wedged and
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * nothing good's going to happen by leaving them there. So strip
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * the GPU domains and just stuff them onto inactive.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (!list_empty(&dev_priv->mm.active_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.active_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->obj->write_domain &= ~I915_GEM_GPU_DOMAINS;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_inactive(obj_priv->obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China while (!list_empty(&dev_priv->mm.flushing_list)) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = list_entry(dev_priv->mm.flushing_list.next,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv->obj->write_domain &= ~I915_GEM_GPU_DOMAINS;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_move_to_inactive(obj_priv->obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Move all inactive buffers out of the GTT. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_evict_from_list(dev, &dev_priv->mm.inactive_list, type);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ASSERT(list_empty(&dev_priv->mm.inactive_list));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_cleanup_ringbuffer(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_init_hws(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If we need a physical address for the status page, it's already
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China * initialized at driver load time.
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (!I915_NEED_GFX_HWS(dev))
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_alloc(dev, 4096);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to allocate status page\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin(obj, 4096);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->status_gfx_addr = obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_map.offset = dev->agp->agp_info.agpi_aperbase + obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_map.size = 4096;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_map.type = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_map.flags = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_map.mtrr = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremap(&dev_priv->hws_map, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->hws_map.handle == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to map status page.\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_obj = obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hw_status_page = dev_priv->hws_map.handle;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) I915_READ(HWS_PGA); /* posting read */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_DEBUG("hws offset: 0x%08x\n", dev_priv->status_gfx_addr);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_cleanup_hws(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->hws_obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = dev_priv->hws_obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremapfree(&dev_priv->hws_map, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hws_obj = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->hw_status_page = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Write high address into HWS_PGA when disabling. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(HWS_PGA, 0x1ffff000);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_init_ringbuffer(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_gem_object *obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China struct drm_i915_gem_object *obj_priv;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_init_hws(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj = drm_gem_object_alloc(dev, 128 * 1024);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (obj == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to allocate ringbuffer\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_cleanup_hws(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China obj_priv = obj->driver_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_object_pin(obj, 4096);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (ret != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_cleanup_hws(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Set up the kernel mapping for the ring. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.Size = obj->size;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.tail_mask = obj->size - 1;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.map.offset = dev->agp->agp_info.agpi_aperbase + obj_priv->gtt_offset;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.map.size = obj->size;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.map.type = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.map.flags = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.map.mtrr = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremap(&dev_priv->ring.map, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->ring.map.handle == NULL) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Failed to map ringbuffer.\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_cleanup_hws(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.ring_obj = obj;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.virtual_start = (u8 *) dev_priv->ring.map.handle;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Stop the ring if it's running. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_CTL, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_HEAD, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_TAIL, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Initialize the ring. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_START, obj_priv->gtt_offset);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* G45 ring initialization fails to reset head to zero */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (head != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Ring head not reset to zero "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "ctl %08x head %08x tail %08x start %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_CTL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_HEAD),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_TAIL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_START));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_HEAD, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Ring head forced to zero "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "ctl %08x head %08x tail %08x start %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_CTL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_HEAD),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_TAIL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_START));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_WRITE(PRB0_CTL,
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ((obj->size - 4096) & RING_NR_PAGES) |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China RING_NO_REPORT |
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* If the head is still not zero, the ring is dead */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (head != 0) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Ring initialization failed "
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China "ctl %08x head %08x tail %08x start %08x\n",
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_CTL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_HEAD),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_TAIL),
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China I915_READ(PRB0_START));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Update our cache of the ring state */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_kernel_lost_context(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_cleanup_ringbuffer(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->ring.ring_obj == NULL)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremapfree(&dev_priv->ring.map, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_object_unpin(dev_priv->ring.ring_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_gem_object_unreference(dev_priv->ring.ring_obj);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->ring.ring_obj = NULL;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China (void) memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China i915_gem_cleanup_hws(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_entervt_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev_priv->mm.wedged) {
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("Reenabling wedged hardware, good luck\n");
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.wedged = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China /* Set up the kernel mapping for the ring. */
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.gtt_mapping.offset = dev->agp->agp_info.agpi_aperbase;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.gtt_mapping.size = dev->agp->agp_info.agpi_apersize;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.gtt_mapping.type = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.gtt_mapping.flags = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.gtt_mapping.mtrr = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremap(&dev_priv->mm.gtt_mapping, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_lock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.suspended = 0;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_init_ringbuffer(dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China spin_unlock(&dev->struct_mutex);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_leavevt_ioctl(DRM_IOCTL_ARGS)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China if (dev->driver->use_gem != 1)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_idle(dev, 0);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_core_ioremapfree(&dev_priv->mm.gtt_mapping, dev);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_lastclose(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China ret = i915_gem_idle(dev, 1);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China DRM_ERROR("failed to idle hardware: %d\n", ret);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_mm_clean_ml(&dev_priv->mm.gtt_space);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing Chinai915_gem_load(struct drm_device *dev)
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China drm_i915_private_t *dev_priv = dev->dev_private;
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China INIT_LIST_HEAD(&dev_priv->mm.active_list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China INIT_LIST_HEAD(&dev_priv->mm.flushing_list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China INIT_LIST_HEAD(&dev_priv->mm.inactive_list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China INIT_LIST_HEAD(&dev_priv->mm.request_list);
0035d21c77a24d02faf34c10aabc120ca692efb5miao chen - Sun Microsystems - Beijing China dev_priv->mm.next_gem_seqno = 1;