pci_cfgacc_asm.s revision e6b21d58662dc0b7b176616916c2aa3c6bcc2622
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Assembly language support for pci config space access on sun4v
*/
#include <sys/asm_linkage.h>
#include <sys/hypervisor_api.h>
#include <sys/dditypes.h>
#include <sys/pci_cfgacc.h>
#include <io/px/px_ioapi.h>
#include <io/px/px_lib4v.h>
#if defined(lint) || defined(__lint)
/*ARGSUSED*/
uint64_t
hvio_config_get(devhandle_t dev_hdl, pci_device_t bdf, pci_config_offset_t off,
pci_config_size_t size, pci_cfg_data_t *data_p)
{ return (0); }
/*ARGSUSED*/
uint64_t
hvio_config_put(devhandle_t dev_hdl, pci_device_t bdf, pci_config_offset_t off,
pci_config_size_t size, pci_cfg_data_t data)
{ return (0); }
#else /* lint || __lint */
/*
* arg0 - devhandle
* arg1 - pci_device
* arg2 - pci_config_offset
* arg3 - pci_config_size (1, 2 or 4 byte)
*
* ret0 - status
* ret1 - error_flag
* ret2 - pci_cfg_data
*/
ENTRY(hvio_config_get)
mov HVIO_CONFIG_GET, %o5
ta FAST_TRAP
sllx %o1, 32, %o1
or %o0, %o1, %o0
movrnz %o1, -1, %o2
stx %o2, [%o4]
retl
nop
SET_SIZE(hvio_config_get)
/*
* arg0 - devhandle
* arg1 - pci_device
* arg2 - pci_config_offset
* arg3 - pci_config_size (1, 2 or 4 byte)
* arg4 - pci_cfg_data
*
* ret0 - status
* ret1 - error_flag
*/
ENTRY(hvio_config_put)
mov HVIO_CONFIG_PUT, %o5
ta FAST_TRAP
sllx %o1, 32, %o1
or %o0, %o1, %o0
retl
nop
SET_SIZE(hvio_config_put)
#endif