io/drm/radeon_drv.c

	radeon_drv.c revision 193974072f41a843678abf5f61979c748687e66b
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/*
 * radeon_drv.c -- ATI Radeon driver -*- linux-c -*-
 * Created: Wed Feb 14 17:10:04 2001 by gareth@valinux.com
 */
/*
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Gareth Hughes <gareth@valinux.com>
 *
 */

#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
#include "drm_pciids.h"

int radeon_no_wb = 1;

/*
 * cb_ops entrypoint
 */
extern struct cb_ops drm_cb_ops;

/* drv_PCI_IDs comes from drm_pciids.h */
static drm_pci_id_list_t radeon_pciidlist[] = {
    radeon_PCI_IDS
};

/*
 * module entrypoint
 */
static int radeon_info(dev_info_t *, ddi_info_cmd_t, void *, void **);
static int radeon_attach(dev_info_t *, ddi_attach_cmd_t);
static int radeon_detach(dev_info_t *, ddi_detach_cmd_t);

extern void radeon_init_ioctl_arrays(void);
extern uint_t radeon_driver_irq_handler(caddr_t);
extern int drm_get_pci_index_reg(dev_info_t *, uint_t, uint_t, off_t *);

/*
 * Local routines
 */
static void radeon_configure(drm_driver_t *);

/*
 * DRM driver
 */
static drm_driver_t radeon_driver = {0};

static struct dev_ops radeon_dev_ops = {
    DEVO_REV,           /* devo_rev */
    0,              /* devo_refcnt */
    radeon_info,            /* devo_getinfo */
    nulldev,            /* devo_identify */
    nulldev,            /* devo_probe */
    radeon_attach,          /* devo_attach */
    radeon_detach,          /* devo_detach */
    nodev,              /* devo_reset */
    &drm_cb_ops,            /* devo_cb_ops */
    NULL,               /* devo_bus_ops */
    NULL,               /* power */
    ddi_quiesce_not_supported,  /* devo_quiesce */
};

static struct modldrv modldrv = {
    &mod_driverops,         /* drv_modops */
    "radeon DRM driver",        /* drv_linkinfo */
    &radeon_dev_ops,            /* drv_dev_ops */
};

static struct modlinkage modlinkage = {
    MODREV_1, (void *) &modldrv, NULL
};


/*
 * softstate head
 */
static void     *radeon_statep;

int
_init(void)
{
    int error;

    radeon_configure(&radeon_driver);

    if ((error = ddi_soft_state_init(&radeon_statep,
        sizeof (drm_device_t), DRM_MAX_INSTANCES)) != 0)
        return (error);

    if ((error = mod_install(&modlinkage)) != 0) {
        ddi_soft_state_fini(&radeon_statep);
        return (error);
    }

    return (error);

}   /* _init() */

int
_fini(void)
{
    int error;

    if ((error = mod_remove(&modlinkage)) != 0)
        return (error);

    (void) ddi_soft_state_fini(&radeon_statep);

    return (0);

}   /* _fini() */

int
_info(struct modinfo *modinfop)
{
    return (mod_info(&modlinkage, modinfop));

}   /* _info() */


static int
radeon_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
    drm_device_t    *statep;
    void        *handle;
    int     unit;

    if (cmd != DDI_ATTACH) {
        DRM_ERROR("radeon_attach: only attach op supported");
        return (DDI_FAILURE);
    }

    unit =  ddi_get_instance(dip);
    if (ddi_soft_state_zalloc(radeon_statep, unit) != DDI_SUCCESS) {
        cmn_err(CE_WARN,
            "radeon_attach: alloc softstate failed unit=%d", unit);
        return (DDI_FAILURE);
    }
    statep = ddi_get_soft_state(radeon_statep, unit);
    statep->dip = dip;
    statep->driver = &radeon_driver;

    /*
     * Call drm_supp_register to create minor nodes for us
     */
    handle = drm_supp_register(dip, statep);
    if (handle == NULL) {
        DRM_ERROR("radeon_attach: drm_supp_register failed");
        goto err_exit1;
    }
    statep->drm_handle = handle;

    /*
     * After drm_supp_register, we can call drm_xxx routine
     */
    statep->drm_supported = DRM_UNSUPPORT;
    if (drm_probe(statep, radeon_pciidlist) != DDI_SUCCESS) {
        DRM_ERROR("radeon_open: "
            "DRM current don't support this graphics card");
        goto err_exit2;
    }
    statep->drm_supported = DRM_SUPPORT;

    /* call common attach code */
    if (drm_attach(statep) != DDI_SUCCESS) {
        DRM_ERROR("radeon_attach: drm_attach failed");
        goto err_exit2;
    }
    return (DDI_SUCCESS);

err_exit2:
    (void) drm_supp_unregister(handle);
err_exit1:
    (void) ddi_soft_state_free(radeon_statep, unit);
    return (DDI_FAILURE);

}   /* radeon_attach() */

static int
radeon_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
    drm_device_t    *statep;
    int         unit;

    if (cmd != DDI_DETACH)
        return (DDI_FAILURE);

    unit =  ddi_get_instance(dip);
    statep = ddi_get_soft_state(radeon_statep, unit);
    if (statep == NULL)
        return (DDI_FAILURE);

    (void) drm_detach(statep);
    (void) drm_supp_unregister(statep->drm_handle);
    (void) ddi_soft_state_free(radeon_statep, unit);

    return (DDI_SUCCESS);

}   /* radeon_detach() */

/*ARGSUSED*/
static int
radeon_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
{
    drm_device_t    *statep;
    int         error = DDI_SUCCESS;
    int         unit;

    unit = drm_dev_to_instance((dev_t)arg);
    switch (infocmd) {
    case DDI_INFO_DEVT2DEVINFO:
        statep = ddi_get_soft_state(radeon_statep, unit);
        if (statep == NULL || statep->dip == NULL) {
            error = DDI_FAILURE;
        } else {
            *result = (void *) statep->dip;
            error = DDI_SUCCESS;
        }
        break;
    case DDI_INFO_DEVT2INSTANCE:
        *result = (void *)(uintptr_t)unit;
        error = DDI_SUCCESS;
        break;
    default:
        error = DDI_FAILURE;
        break;
    }
    return (error);

}   /* radeon_info() */

static void
radeon_configure(drm_driver_t *driver)
{
    driver->buf_priv_size = sizeof (drm_radeon_buf_priv_t);
    driver->load            = radeon_driver_load;
    driver->unload      = radeon_driver_unload;
    driver->firstopen       = radeon_driver_firstopen;
    driver->open            = radeon_driver_open;
    driver->preclose        = radeon_driver_preclose;
    driver->postclose       = radeon_driver_postclose;
    driver->lastclose       = radeon_driver_lastclose;
    driver->vblank_wait     = radeon_driver_vblank_wait;
    driver->vblank_wait2        = radeon_driver_vblank_wait2;
    driver->irq_preinstall  = radeon_driver_irq_preinstall;
    driver->irq_postinstall = radeon_driver_irq_postinstall;
    driver->irq_uninstall   = radeon_driver_irq_uninstall;
    driver->irq_handler     = radeon_driver_irq_handler;
    driver->dma_ioctl       = radeon_cp_buffers;

    driver->driver_ioctls   = radeon_ioctls;
    driver->max_driver_ioctl    = radeon_max_ioctl;

    driver->driver_name     = DRIVER_NAME;
    driver->driver_desc     = DRIVER_DESC;
    driver->driver_date     = DRIVER_DATE;
    driver->driver_major        = DRIVER_MAJOR;
    driver->driver_minor        = DRIVER_MINOR;
    driver->driver_patchlevel   = DRIVER_PATCHLEVEL;

    driver->use_agp     = 1;
    driver->use_mtrr        = 1;
    driver->use_pci_dma     = 1;
    driver->use_sg      = 1;
    driver->use_dma     = 1;
    driver->use_irq     = 1;
    driver->use_vbl_irq     = 1;
    driver->use_vbl_irq2        = 1;

}   /* radeon_configure() */