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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"
/* r520,rv530,rv560,rv570,r580 depends on : */
void r100_hdp_reset(struct radeon_device *rdev);
int rv370_pcie_gart_enable(struct radeon_device *rdev);
void rv370_pcie_gart_disable(struct radeon_device *rdev);
void r420_pipes_init(struct radeon_device *rdev);
void rs600_mc_disable_clients(struct radeon_device *rdev);
void rs600_disable_vga(struct radeon_device *rdev);
int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
/* This files gather functions specifics to:
* r520,rv530,rv560,rv570,r580
*
* Some of these functions might be used by newer ASICs.
*/
void r520_gpu_init(struct radeon_device *rdev);
int r520_mc_wait_for_idle(struct radeon_device *rdev);
/*
* MC
*/
int r520_mc_init(struct radeon_device *rdev)
{
uint32_t tmp;
int r;
if (r100_debugfs_rbbm_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for RBBM !\n");
}
if (rv515_debugfs_pipes_info_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for pipes !\n");
}
if (rv515_debugfs_ga_info_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for pipes !\n");
}
r520_gpu_init(rdev);
rv370_pcie_gart_disable(rdev);
/* Setup GPU memory space */
rdev->mc.vram_location = 0xFFFFFFFFUL;
rdev->mc.gtt_location = 0xFFFFFFFFUL;
if (rdev->flags & RADEON_IS_AGP) {
r = radeon_agp_init(rdev);
if (r) {
printk(KERN_WARNING "[drm] Disabling AGP\n");
rdev->flags &= ~RADEON_IS_AGP;
rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
} else {
rdev->mc.gtt_location = rdev->mc.agp_base;
}
}
r = radeon_mc_setup(rdev);
if (r) {
return r;
}
/* Program GPU memory space */
rs600_mc_disable_clients(rdev);
if (r520_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
/* Write VRAM size in case we are limiting it */
WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
tmp = REG_SET(R520_MC_FB_TOP, tmp >> 16);
tmp |= REG_SET(R520_MC_FB_START, rdev->mc.vram_location >> 16);
WREG32_MC(R520_MC_FB_LOCATION, tmp);
WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
WREG32(0x310, rdev->mc.vram_location);
if (rdev->flags & RADEON_IS_AGP) {
tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
tmp = REG_SET(R520_MC_AGP_TOP, tmp >> 16);
tmp |= REG_SET(R520_MC_AGP_START, rdev->mc.gtt_location >> 16);
WREG32_MC(R520_MC_AGP_LOCATION, tmp);
WREG32_MC(R520_MC_AGP_BASE, rdev->mc.agp_base);
WREG32_MC(R520_MC_AGP_BASE_2, 0);
} else {
WREG32_MC(R520_MC_AGP_LOCATION, 0x0FFFFFFF);
WREG32_MC(R520_MC_AGP_BASE, 0);
WREG32_MC(R520_MC_AGP_BASE_2, 0);
}
return 0;
}
void r520_mc_fini(struct radeon_device *rdev)
{
rv370_pcie_gart_disable(rdev);
radeon_gart_table_vram_free(rdev);
radeon_gart_fini(rdev);
}
/*
* Global GPU functions
*/
void r520_errata(struct radeon_device *rdev)
{
rdev->pll_errata = 0;
}
int r520_mc_wait_for_idle(struct radeon_device *rdev)
{
unsigned i;
uint32_t tmp;
for (i = 0; i < rdev->usec_timeout; i++) {
/* read MC_STATUS */
tmp = RREG32_MC(R520_MC_STATUS);
if (tmp & R520_MC_STATUS_IDLE) {
return 0;
}
DRM_UDELAY(1);
}
return -1;
}
void r520_gpu_init(struct radeon_device *rdev)
{
unsigned pipe_select_current, gb_pipe_select, tmp;
r100_hdp_reset(rdev);
rs600_disable_vga(rdev);
/*
* DST_PIPE_CONFIG 0x170C
* GB_TILE_CONFIG 0x4018
* GB_FIFO_SIZE 0x4024
* GB_PIPE_SELECT 0x402C
* GB_PIPE_SELECT2 0x4124
* Z_PIPE_SHIFT 0
* Z_PIPE_MASK 0x000000003
* GB_FIFO_SIZE2 0x4128
* SC_SFIFO_SIZE_SHIFT 0
* SC_SFIFO_SIZE_MASK 0x000000003
* SC_MFIFO_SIZE_SHIFT 2
* SC_MFIFO_SIZE_MASK 0x00000000C
* FG_SFIFO_SIZE_SHIFT 4
* FG_SFIFO_SIZE_MASK 0x000000030
* ZB_MFIFO_SIZE_SHIFT 6
* ZB_MFIFO_SIZE_MASK 0x0000000C0
* GA_ENHANCE 0x4274
* SU_REG_DEST 0x42C8
*/
/* workaround for RV530 */
if (rdev->family == CHIP_RV530) {
WREG32(0x4124, 1);
WREG32(0x4128, 0xFF);
}
r420_pipes_init(rdev);
gb_pipe_select = RREG32(0x402C);
tmp = RREG32(0x170C);
pipe_select_current = (tmp >> 2) & 3;
tmp = (1 << pipe_select_current) |
(((gb_pipe_select >> 8) & 0xF) << 4);
WREG32_PLL(0x000D, tmp);
if (r520_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
}
/*
* VRAM info
*/
static void r520_vram_get_type(struct radeon_device *rdev)
{
uint32_t tmp;
rdev->mc.vram_width = 128;
rdev->mc.vram_is_ddr = true;
tmp = RREG32_MC(R520_MC_CNTL0);
switch ((tmp & R520_MEM_NUM_CHANNELS_MASK) >> R520_MEM_NUM_CHANNELS_SHIFT) {
case 0:
rdev->mc.vram_width = 32;
break;
case 1:
rdev->mc.vram_width = 64;
break;
case 2:
rdev->mc.vram_width = 128;
break;
case 3:
rdev->mc.vram_width = 256;
break;
default:
rdev->mc.vram_width = 128;
break;
}
if (tmp & R520_MC_CHANNEL_SIZE)
rdev->mc.vram_width *= 2;
}
void r520_vram_info(struct radeon_device *rdev)
{
r520_vram_get_type(rdev);
rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
}
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