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/*
* Copyright 2008 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
* Copyright 2009 Jerome Glisse.
*
* 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 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
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
* Alex Deucher
* Jerome Glisse
*/
#include "drmP.h"
#include "radeon_reg.h"
#include "radeon.h"
/* r600,rv610,rv630,rv620,rv635,rv670 depends on : */
void rs600_mc_disable_clients(struct radeon_device *rdev);
/* This files gather functions specifics to:
* r600,rv610,rv630,rv620,rv635,rv670
*
* Some of these functions might be used by newer ASICs.
*/
int r600_mc_wait_for_idle(struct radeon_device *rdev);
void r600_gpu_init(struct radeon_device *rdev);
/*
* MC
*/
int r600_mc_init(struct radeon_device *rdev)
{
uint32_t tmp;
r600_gpu_init(rdev);
/* setup the gart before changing location so we can ask to
* discard unmapped mc request
*/
/* FIXME: disable out of gart access */
tmp = rdev->mc.gtt_location / 4096;
tmp = REG_SET(R600_LOGICAL_PAGE_NUMBER, tmp);
WREG32(R600_MC_VM_SYSTEM_APERTURE_LOW_ADDR, tmp);
tmp = (rdev->mc.gtt_location + rdev->mc.gtt_size) / 4096;
tmp = REG_SET(R600_LOGICAL_PAGE_NUMBER, tmp);
WREG32(R600_MC_VM_SYSTEM_APERTURE_HIGH_ADDR, tmp);
rs600_mc_disable_clients(rdev);
if (r600_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
tmp = REG_SET(R600_MC_FB_TOP, tmp >> 24);
tmp |= REG_SET(R600_MC_FB_BASE, rdev->mc.vram_location >> 24);
WREG32(R600_MC_VM_FB_LOCATION, tmp);
tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
tmp = REG_SET(R600_MC_AGP_TOP, tmp >> 22);
WREG32(R600_MC_VM_AGP_TOP, tmp);
tmp = REG_SET(R600_MC_AGP_BOT, rdev->mc.gtt_location >> 22);
WREG32(R600_MC_VM_AGP_BOT, tmp);
return 0;
}
void r600_mc_fini(struct radeon_device *rdev)
{
/* FIXME: implement */
}
/*
* Global GPU functions
*/
void r600_errata(struct radeon_device *rdev)
{
rdev->pll_errata = 0;
}
int r600_mc_wait_for_idle(struct radeon_device *rdev)
{
/* FIXME: implement */
return 0;
}
void r600_gpu_init(struct radeon_device *rdev)
{
/* FIXME: implement */
}
/*
* VRAM info
*/
void r600_vram_get_type(struct radeon_device *rdev)
{
uint32_t tmp;
int chansize;
rdev->mc.vram_width = 128;
rdev->mc.vram_is_ddr = true;
tmp = RREG32(R600_RAMCFG);
if (tmp & R600_CHANSIZE_OVERRIDE) {
chansize = 16;
} else if (tmp & R600_CHANSIZE) {
chansize = 64;
} else {
chansize = 32;
}
if (rdev->family == CHIP_R600) {
rdev->mc.vram_width = 8 * chansize;
} else if (rdev->family == CHIP_RV670) {
rdev->mc.vram_width = 4 * chansize;
} else if ((rdev->family == CHIP_RV610) ||
(rdev->family == CHIP_RV620)) {
rdev->mc.vram_width = chansize;
} else if ((rdev->family == CHIP_RV630) ||
(rdev->family == CHIP_RV635)) {
rdev->mc.vram_width = 2 * chansize;
}
}
void r600_vram_info(struct radeon_device *rdev)
{
r600_vram_get_type(rdev);
rdev->mc.vram_size = RREG32(R600_CONFIG_MEMSIZE);
/* Could aper size report 0 ? */
rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
}
/*
* Indirect registers accessor
*/
uint32_t r600_pciep_rreg(struct radeon_device *rdev, uint32_t reg)
{
uint32_t r;
WREG32(R600_PCIE_PORT_INDEX, ((reg) & 0xff));
(void)RREG32(R600_PCIE_PORT_INDEX);
r = RREG32(R600_PCIE_PORT_DATA);
return r;
}
void r600_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
{
WREG32(R600_PCIE_PORT_INDEX, ((reg) & 0xff));
(void)RREG32(R600_PCIE_PORT_INDEX);
WREG32(R600_PCIE_PORT_DATA, (v));
(void)RREG32(R600_PCIE_PORT_DATA);
}
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