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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7a50f01a4a
If an rn50/r100/m6/m7 GPU has < 64MB RAM, i.e. 8/16/32, the aperture used to calculate the MC_FB_LOCATION needs to be worked out from the CONFIG_APER_SIZE register, and not the actual vram size. TTM VRAM size was also being initialised wrong, use actual vram size to initialise it. Signed-off-by: Dave Airlie <airlied@redhat.com>
247 lines
6.7 KiB
C
247 lines
6.7 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#include "drmP.h"
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#include "radeon_reg.h"
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#include "radeon.h"
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#include "radeon_share.h"
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/* r520,rv530,rv560,rv570,r580 depends on : */
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void r100_hdp_reset(struct radeon_device *rdev);
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int rv370_pcie_gart_enable(struct radeon_device *rdev);
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void rv370_pcie_gart_disable(struct radeon_device *rdev);
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void r420_pipes_init(struct radeon_device *rdev);
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void rs600_mc_disable_clients(struct radeon_device *rdev);
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void rs600_disable_vga(struct radeon_device *rdev);
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int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
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int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
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/* This files gather functions specifics to:
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* r520,rv530,rv560,rv570,r580
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*
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* Some of these functions might be used by newer ASICs.
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*/
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void r520_gpu_init(struct radeon_device *rdev);
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int r520_mc_wait_for_idle(struct radeon_device *rdev);
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/*
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* MC
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*/
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int r520_mc_init(struct radeon_device *rdev)
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{
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uint32_t tmp;
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int r;
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if (r100_debugfs_rbbm_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for RBBM !\n");
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}
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if (rv515_debugfs_pipes_info_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for pipes !\n");
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}
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if (rv515_debugfs_ga_info_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for pipes !\n");
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}
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r520_gpu_init(rdev);
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rv370_pcie_gart_disable(rdev);
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/* Setup GPU memory space */
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rdev->mc.vram_location = 0xFFFFFFFFUL;
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rdev->mc.gtt_location = 0xFFFFFFFFUL;
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if (rdev->flags & RADEON_IS_AGP) {
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r = radeon_agp_init(rdev);
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if (r) {
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printk(KERN_WARNING "[drm] Disabling AGP\n");
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rdev->flags &= ~RADEON_IS_AGP;
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rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
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} else {
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rdev->mc.gtt_location = rdev->mc.agp_base;
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}
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}
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r = radeon_mc_setup(rdev);
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if (r) {
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return r;
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}
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/* Program GPU memory space */
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rs600_mc_disable_clients(rdev);
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if (r520_mc_wait_for_idle(rdev)) {
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printk(KERN_WARNING "Failed to wait MC idle while "
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"programming pipes. Bad things might happen.\n");
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}
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/* Write VRAM size in case we are limiting it */
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WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
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tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
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tmp = REG_SET(R520_MC_FB_TOP, tmp >> 16);
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tmp |= REG_SET(R520_MC_FB_START, rdev->mc.vram_location >> 16);
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WREG32_MC(R520_MC_FB_LOCATION, tmp);
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WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
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WREG32(0x310, rdev->mc.vram_location);
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if (rdev->flags & RADEON_IS_AGP) {
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tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
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tmp = REG_SET(R520_MC_AGP_TOP, tmp >> 16);
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tmp |= REG_SET(R520_MC_AGP_START, rdev->mc.gtt_location >> 16);
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WREG32_MC(R520_MC_AGP_LOCATION, tmp);
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WREG32_MC(R520_MC_AGP_BASE, rdev->mc.agp_base);
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WREG32_MC(R520_MC_AGP_BASE_2, 0);
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} else {
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WREG32_MC(R520_MC_AGP_LOCATION, 0x0FFFFFFF);
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WREG32_MC(R520_MC_AGP_BASE, 0);
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WREG32_MC(R520_MC_AGP_BASE_2, 0);
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}
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return 0;
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}
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void r520_mc_fini(struct radeon_device *rdev)
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{
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rv370_pcie_gart_disable(rdev);
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radeon_gart_table_vram_free(rdev);
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radeon_gart_fini(rdev);
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}
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/*
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* Global GPU functions
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*/
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void r520_errata(struct radeon_device *rdev)
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{
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rdev->pll_errata = 0;
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}
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int r520_mc_wait_for_idle(struct radeon_device *rdev)
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{
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unsigned i;
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uint32_t tmp;
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for (i = 0; i < rdev->usec_timeout; i++) {
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/* read MC_STATUS */
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tmp = RREG32_MC(R520_MC_STATUS);
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if (tmp & R520_MC_STATUS_IDLE) {
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return 0;
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}
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DRM_UDELAY(1);
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}
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return -1;
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}
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void r520_gpu_init(struct radeon_device *rdev)
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{
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unsigned pipe_select_current, gb_pipe_select, tmp;
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r100_hdp_reset(rdev);
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rs600_disable_vga(rdev);
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/*
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* DST_PIPE_CONFIG 0x170C
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* GB_TILE_CONFIG 0x4018
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* GB_FIFO_SIZE 0x4024
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* GB_PIPE_SELECT 0x402C
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* GB_PIPE_SELECT2 0x4124
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* Z_PIPE_SHIFT 0
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* Z_PIPE_MASK 0x000000003
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* GB_FIFO_SIZE2 0x4128
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* SC_SFIFO_SIZE_SHIFT 0
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* SC_SFIFO_SIZE_MASK 0x000000003
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* SC_MFIFO_SIZE_SHIFT 2
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* SC_MFIFO_SIZE_MASK 0x00000000C
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* FG_SFIFO_SIZE_SHIFT 4
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* FG_SFIFO_SIZE_MASK 0x000000030
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* ZB_MFIFO_SIZE_SHIFT 6
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* ZB_MFIFO_SIZE_MASK 0x0000000C0
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* GA_ENHANCE 0x4274
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* SU_REG_DEST 0x42C8
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*/
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/* workaround for RV530 */
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if (rdev->family == CHIP_RV530) {
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WREG32(0x4124, 1);
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WREG32(0x4128, 0xFF);
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}
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r420_pipes_init(rdev);
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gb_pipe_select = RREG32(0x402C);
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tmp = RREG32(0x170C);
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pipe_select_current = (tmp >> 2) & 3;
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tmp = (1 << pipe_select_current) |
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(((gb_pipe_select >> 8) & 0xF) << 4);
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WREG32_PLL(0x000D, tmp);
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if (r520_mc_wait_for_idle(rdev)) {
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printk(KERN_WARNING "Failed to wait MC idle while "
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"programming pipes. Bad things might happen.\n");
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}
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}
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/*
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* VRAM info
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*/
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static void r520_vram_get_type(struct radeon_device *rdev)
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{
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uint32_t tmp;
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rdev->mc.vram_width = 128;
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rdev->mc.vram_is_ddr = true;
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tmp = RREG32_MC(R520_MC_CNTL0);
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switch ((tmp & R520_MEM_NUM_CHANNELS_MASK) >> R520_MEM_NUM_CHANNELS_SHIFT) {
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case 0:
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rdev->mc.vram_width = 32;
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break;
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case 1:
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rdev->mc.vram_width = 64;
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break;
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case 2:
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rdev->mc.vram_width = 128;
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break;
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case 3:
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rdev->mc.vram_width = 256;
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break;
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default:
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rdev->mc.vram_width = 128;
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break;
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}
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if (tmp & R520_MC_CHANNEL_SIZE)
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rdev->mc.vram_width *= 2;
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}
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void r520_vram_info(struct radeon_device *rdev)
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{
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fixed20_12 a;
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r520_vram_get_type(rdev);
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r100_vram_init_sizes(rdev);
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/* FIXME: we should enforce default clock in case GPU is not in
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* default setup
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*/
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a.full = rfixed_const(100);
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rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
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rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
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}
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void r520_bandwidth_update(struct radeon_device *rdev)
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{
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rv515_bandwidth_avivo_update(rdev);
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}
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