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gmc_v8_0.c
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gmc_v8_0.c
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/*
* Copyright 2014 Advanced Micro Devices, Inc.
*
* 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.
*
*/
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <drm/drm_cache.h>
#include "amdgpu.h"
#include "gmc_v8_0.h"
#include "amdgpu_ucode.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_gem.h"
#include "gmc/gmc_8_1_d.h"
#include "gmc/gmc_8_1_sh_mask.h"
#include "bif/bif_5_0_d.h"
#include "bif/bif_5_0_sh_mask.h"
#include "oss/oss_3_0_d.h"
#include "oss/oss_3_0_sh_mask.h"
#include "dce/dce_10_0_d.h"
#include "dce/dce_10_0_sh_mask.h"
#include "vid.h"
#include "vi.h"
#include "amdgpu_atombios.h"
#include "ivsrcid/ivsrcid_vislands30.h"
static void gmc_v8_0_set_gmc_funcs(struct amdgpu_device *adev);
static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);
static int gmc_v8_0_wait_for_idle(void *handle);
MODULE_FIRMWARE("amdgpu/tonga_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris11_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris10_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris12_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris12_32_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris11_k_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris10_k_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris12_k_mc.bin");
static const u32 golden_settings_tonga_a11[] = {
mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028,
mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991,
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
};
static const u32 tonga_mgcg_cgcg_init[] = {
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
};
static const u32 golden_settings_fiji_a10[] = {
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
};
static const u32 fiji_mgcg_cgcg_init[] = {
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
};
static const u32 golden_settings_polaris11_a11[] = {
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
};
static const u32 golden_settings_polaris10_a11[] = {
mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
};
static const u32 cz_mgcg_cgcg_init[] = {
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
};
static const u32 stoney_mgcg_cgcg_init[] = {
mmATC_MISC_CG, 0xffffffff, 0x000c0200,
mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
};
static const u32 golden_settings_stoney_common[] = {
mmMC_HUB_RDREQ_UVD, MC_HUB_RDREQ_UVD__PRESCALE_MASK, 0x00000004,
mmMC_RD_GRP_OTH, MC_RD_GRP_OTH__UVD_MASK, 0x00600000
};
static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev)
{
switch (adev->asic_type) {
case CHIP_FIJI:
amdgpu_device_program_register_sequence(adev,
fiji_mgcg_cgcg_init,
ARRAY_SIZE(fiji_mgcg_cgcg_init));
amdgpu_device_program_register_sequence(adev,
golden_settings_fiji_a10,
ARRAY_SIZE(golden_settings_fiji_a10));
break;
case CHIP_TONGA:
amdgpu_device_program_register_sequence(adev,
tonga_mgcg_cgcg_init,
ARRAY_SIZE(tonga_mgcg_cgcg_init));
amdgpu_device_program_register_sequence(adev,
golden_settings_tonga_a11,
ARRAY_SIZE(golden_settings_tonga_a11));
break;
case CHIP_POLARIS11:
case CHIP_POLARIS12:
case CHIP_VEGAM:
amdgpu_device_program_register_sequence(adev,
golden_settings_polaris11_a11,
ARRAY_SIZE(golden_settings_polaris11_a11));
break;
case CHIP_POLARIS10:
amdgpu_device_program_register_sequence(adev,
golden_settings_polaris10_a11,
ARRAY_SIZE(golden_settings_polaris10_a11));
break;
case CHIP_CARRIZO:
amdgpu_device_program_register_sequence(adev,
cz_mgcg_cgcg_init,
ARRAY_SIZE(cz_mgcg_cgcg_init));
break;
case CHIP_STONEY:
amdgpu_device_program_register_sequence(adev,
stoney_mgcg_cgcg_init,
ARRAY_SIZE(stoney_mgcg_cgcg_init));
amdgpu_device_program_register_sequence(adev,
golden_settings_stoney_common,
ARRAY_SIZE(golden_settings_stoney_common));
break;
default:
break;
}
}
static void gmc_v8_0_mc_stop(struct amdgpu_device *adev)
{
u32 blackout;
gmc_v8_0_wait_for_idle(adev);
blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
/* Block CPU access */
WREG32(mmBIF_FB_EN, 0);
/* blackout the MC */
blackout = REG_SET_FIELD(blackout,
MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
}
/* wait for the MC to settle */
udelay(100);
}
static void gmc_v8_0_mc_resume(struct amdgpu_device *adev)
{
u32 tmp;
/* unblackout the MC */
tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
/* allow CPU access */
tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
WREG32(mmBIF_FB_EN, tmp);
}
/**
* gmc_v8_0_init_microcode - load ucode images from disk
*
* @adev: amdgpu_device pointer
*
* Use the firmware interface to load the ucode images into
* the driver (not loaded into hw).
* Returns 0 on success, error on failure.
*/
static int gmc_v8_0_init_microcode(struct amdgpu_device *adev)
{
const char *chip_name;
char fw_name[30];
int err;
DRM_DEBUG("\n");
switch (adev->asic_type) {
case CHIP_TONGA:
chip_name = "tonga";
break;
case CHIP_POLARIS11:
if (ASICID_IS_P21(adev->pdev->device, adev->pdev->revision) ||
ASICID_IS_P31(adev->pdev->device, adev->pdev->revision))
chip_name = "polaris11_k";
else
chip_name = "polaris11";
break;
case CHIP_POLARIS10:
if (ASICID_IS_P30(adev->pdev->device, adev->pdev->revision))
chip_name = "polaris10_k";
else
chip_name = "polaris10";
break;
case CHIP_POLARIS12:
if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) {
chip_name = "polaris12_k";
} else {
WREG32(mmMC_SEQ_IO_DEBUG_INDEX, ixMC_IO_DEBUG_UP_159);
/* Polaris12 32bit ASIC needs a special MC firmware */
if (RREG32(mmMC_SEQ_IO_DEBUG_DATA) == 0x05b4dc40)
chip_name = "polaris12_32";
else
chip_name = "polaris12";
}
break;
case CHIP_FIJI:
case CHIP_CARRIZO:
case CHIP_STONEY:
case CHIP_VEGAM:
return 0;
default:
return -EINVAL;
}
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
err = amdgpu_ucode_request(adev, &adev->gmc.fw, fw_name);
if (err) {
pr_err("mc: Failed to load firmware \"%s\"\n", fw_name);
amdgpu_ucode_release(&adev->gmc.fw);
}
return err;
}
/**
* gmc_v8_0_tonga_mc_load_microcode - load tonga MC ucode into the hw
*
* @adev: amdgpu_device pointer
*
* Load the GDDR MC ucode into the hw (VI).
* Returns 0 on success, error on failure.
*/
static int gmc_v8_0_tonga_mc_load_microcode(struct amdgpu_device *adev)
{
const struct mc_firmware_header_v1_0 *hdr;
const __le32 *fw_data = NULL;
const __le32 *io_mc_regs = NULL;
u32 running;
int i, ucode_size, regs_size;
/* Skip MC ucode loading on SR-IOV capable boards.
* vbios does this for us in asic_init in that case.
* Skip MC ucode loading on VF, because hypervisor will do that
* for this adaptor.
*/
if (amdgpu_sriov_bios(adev))
return 0;
if (!adev->gmc.fw)
return -EINVAL;
hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
amdgpu_ucode_print_mc_hdr(&hdr->header);
adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
io_mc_regs = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
fw_data = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
if (running == 0) {
/* reset the engine and set to writable */
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
/* load mc io regs */
for (i = 0; i < regs_size; i++) {
WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
}
/* load the MC ucode */
for (i = 0; i < ucode_size; i++)
WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
/* put the engine back into the active state */
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
/* wait for training to complete */
for (i = 0; i < adev->usec_timeout; i++) {
if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
break;
udelay(1);
}
for (i = 0; i < adev->usec_timeout; i++) {
if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
break;
udelay(1);
}
}
return 0;
}
static int gmc_v8_0_polaris_mc_load_microcode(struct amdgpu_device *adev)
{
const struct mc_firmware_header_v1_0 *hdr;
const __le32 *fw_data = NULL;
const __le32 *io_mc_regs = NULL;
u32 data;
int i, ucode_size, regs_size;
/* Skip MC ucode loading on SR-IOV capable boards.
* vbios does this for us in asic_init in that case.
* Skip MC ucode loading on VF, because hypervisor will do that
* for this adaptor.
*/
if (amdgpu_sriov_bios(adev))
return 0;
if (!adev->gmc.fw)
return -EINVAL;
hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
amdgpu_ucode_print_mc_hdr(&hdr->header);
adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
io_mc_regs = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
fw_data = (const __le32 *)
(adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
data = RREG32(mmMC_SEQ_MISC0);
data &= ~(0x40);
WREG32(mmMC_SEQ_MISC0, data);
/* load mc io regs */
for (i = 0; i < regs_size; i++) {
WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
}
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
/* load the MC ucode */
for (i = 0; i < ucode_size; i++)
WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
/* put the engine back into the active state */
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
/* wait for training to complete */
for (i = 0; i < adev->usec_timeout; i++) {
data = RREG32(mmMC_SEQ_MISC0);
if (data & 0x80)
break;
udelay(1);
}
return 0;
}
static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc)
{
u64 base = 0;
if (!amdgpu_sriov_vf(adev))
base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
base <<= 24;
amdgpu_gmc_vram_location(adev, mc, base);
amdgpu_gmc_gart_location(adev, mc);
}
/**
* gmc_v8_0_mc_program - program the GPU memory controller
*
* @adev: amdgpu_device pointer
*
* Set the location of vram, gart, and AGP in the GPU's
* physical address space (VI).
*/
static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
{
u32 tmp;
int i, j;
/* Initialize HDP */
for (i = 0, j = 0; i < 32; i++, j += 0x6) {
WREG32((0xb05 + j), 0x00000000);
WREG32((0xb06 + j), 0x00000000);
WREG32((0xb07 + j), 0x00000000);
WREG32((0xb08 + j), 0x00000000);
WREG32((0xb09 + j), 0x00000000);
}
WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
if (gmc_v8_0_wait_for_idle((void *)adev))
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
if (adev->mode_info.num_crtc) {
/* Lockout access through VGA aperture*/
tmp = RREG32(mmVGA_HDP_CONTROL);
tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
WREG32(mmVGA_HDP_CONTROL, tmp);
/* disable VGA render */
tmp = RREG32(mmVGA_RENDER_CONTROL);
tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
WREG32(mmVGA_RENDER_CONTROL, tmp);
}
/* Update configuration */
WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
adev->gmc.vram_start >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
adev->gmc.vram_end >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
adev->mem_scratch.gpu_addr >> 12);
if (amdgpu_sriov_vf(adev)) {
tmp = ((adev->gmc.vram_end >> 24) & 0xFFFF) << 16;
tmp |= ((adev->gmc.vram_start >> 24) & 0xFFFF);
WREG32(mmMC_VM_FB_LOCATION, tmp);
/* XXX double check these! */
WREG32(mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8));
WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
}
WREG32(mmMC_VM_AGP_BASE, 0);
WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
if (gmc_v8_0_wait_for_idle((void *)adev))
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
tmp = RREG32(mmHDP_MISC_CNTL);
tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
WREG32(mmHDP_MISC_CNTL, tmp);
tmp = RREG32(mmHDP_HOST_PATH_CNTL);
WREG32(mmHDP_HOST_PATH_CNTL, tmp);
}
/**
* gmc_v8_0_mc_init - initialize the memory controller driver params
*
* @adev: amdgpu_device pointer
*
* Look up the amount of vram, vram width, and decide how to place
* vram and gart within the GPU's physical address space (VI).
* Returns 0 for success.
*/
static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
{
int r;
u32 tmp;
adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
if (!adev->gmc.vram_width) {
int chansize, numchan;
/* Get VRAM informations */
tmp = RREG32(mmMC_ARB_RAMCFG);
if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE))
chansize = 64;
else
chansize = 32;
tmp = RREG32(mmMC_SHARED_CHMAP);
switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
case 0:
default:
numchan = 1;
break;
case 1:
numchan = 2;
break;
case 2:
numchan = 4;
break;
case 3:
numchan = 8;
break;
case 4:
numchan = 3;
break;
case 5:
numchan = 6;
break;
case 6:
numchan = 10;
break;
case 7:
numchan = 12;
break;
case 8:
numchan = 16;
break;
}
adev->gmc.vram_width = numchan * chansize;
}
/* size in MB on si */
tmp = RREG32(mmCONFIG_MEMSIZE);
/* some boards may have garbage in the upper 16 bits */
if (tmp & 0xffff0000) {
DRM_INFO("Probable bad vram size: 0x%08x\n", tmp);
if (tmp & 0xffff)
tmp &= 0xffff;
}
adev->gmc.mc_vram_size = tmp * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
if (!(adev->flags & AMD_IS_APU)) {
r = amdgpu_device_resize_fb_bar(adev);
if (r)
return r;
}
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
#ifdef CONFIG_X86_64
if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) {
adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
adev->gmc.aper_size = adev->gmc.real_vram_size;
}
#endif
adev->gmc.visible_vram_size = adev->gmc.aper_size;
/* set the gart size */
if (amdgpu_gart_size == -1) {
switch (adev->asic_type) {
case CHIP_POLARIS10: /* all engines support GPUVM */
case CHIP_POLARIS11: /* all engines support GPUVM */
case CHIP_POLARIS12: /* all engines support GPUVM */
case CHIP_VEGAM: /* all engines support GPUVM */
default:
adev->gmc.gart_size = 256ULL << 20;
break;
case CHIP_TONGA: /* UVD, VCE do not support GPUVM */
case CHIP_FIJI: /* UVD, VCE do not support GPUVM */
case CHIP_CARRIZO: /* UVD, VCE do not support GPUVM, DCE SG support */
case CHIP_STONEY: /* UVD does not support GPUVM, DCE SG support */
adev->gmc.gart_size = 1024ULL << 20;
break;
}
} else {
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
}
adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
gmc_v8_0_vram_gtt_location(adev, &adev->gmc);
return 0;
}
/**
* gmc_v8_0_flush_gpu_tlb_pasid - tlb flush via pasid
*
* @adev: amdgpu_device pointer
* @pasid: pasid to be flush
* @flush_type: type of flush
* @all_hub: flush all hubs
* @inst: is used to select which instance of KIQ to use for the invalidation
*
* Flush the TLB for the requested pasid.
*/
static int gmc_v8_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
uint16_t pasid, uint32_t flush_type,
bool all_hub, uint32_t inst)
{
int vmid;
unsigned int tmp;
if (amdgpu_in_reset(adev))
return -EIO;
for (vmid = 1; vmid < 16; vmid++) {
tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
(tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) {
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
RREG32(mmVM_INVALIDATE_RESPONSE);
break;
}
}
return 0;
}
/*
* GART
* VMID 0 is the physical GPU addresses as used by the kernel.
* VMIDs 1-15 are used for userspace clients and are handled
* by the amdgpu vm/hsa code.
*/
/**
* gmc_v8_0_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
* @vmhub: which hub to flush
* @flush_type: type of flush
*
* Flush the TLB for the requested page table (VI).
*/
static void gmc_v8_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type)
{
/* bits 0-15 are the VM contexts0-15 */
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
}
static uint64_t gmc_v8_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned int vmid, uint64_t pd_addr)
{
uint32_t reg;
if (vmid < 8)
reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
else
reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
/* bits 0-15 are the VM contexts0-15 */
amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
return pd_addr;
}
static void gmc_v8_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned int vmid,
unsigned int pasid)
{
amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
}
/*
* PTE format on VI:
* 63:40 reserved
* 39:12 4k physical page base address
* 11:7 fragment
* 6 write
* 5 read
* 4 exe
* 3 reserved
* 2 snooped
* 1 system
* 0 valid
*
* PDE format on VI:
* 63:59 block fragment size
* 58:40 reserved
* 39:1 physical base address of PTE
* bits 5:1 must be 0.
* 0 valid
*/
static void gmc_v8_0_get_vm_pde(struct amdgpu_device *adev, int level,
uint64_t *addr, uint64_t *flags)
{
BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
}
static void gmc_v8_0_get_vm_pte(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping,
uint64_t *flags)
{
*flags &= ~AMDGPU_PTE_EXECUTABLE;
*flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
*flags &= ~AMDGPU_PTE_PRT;
}
/**
* gmc_v8_0_set_fault_enable_default - update VM fault handling
*
* @adev: amdgpu_device pointer
* @value: true redirects VM faults to the default page
*/
static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev,
bool value)
{
u32 tmp;
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
WREG32(mmVM_CONTEXT1_CNTL, tmp);
}
/**
* gmc_v8_0_set_prt() - set PRT VM fault
*
* @adev: amdgpu_device pointer
* @enable: enable/disable VM fault handling for PRT
*/
static void gmc_v8_0_set_prt(struct amdgpu_device *adev, bool enable)
{
u32 tmp;
if (enable && !adev->gmc.prt_warning) {
dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
adev->gmc.prt_warning = true;
}
tmp = RREG32(mmVM_PRT_CNTL);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
L2_CACHE_STORE_INVALID_ENTRIES, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
L1_TLB_STORE_INVALID_ENTRIES, enable);
tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
MASK_PDE0_FAULT, enable);
WREG32(mmVM_PRT_CNTL, tmp);
if (enable) {
uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
uint32_t high = adev->vm_manager.max_pfn -
(AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
} else {
WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
}
}
/**
* gmc_v8_0_gart_enable - gart enable
*
* @adev: amdgpu_device pointer
*
* This sets up the TLBs, programs the page tables for VMID0,
* sets up the hw for VMIDs 1-15 which are allocated on
* demand, and sets up the global locations for the LDS, GDS,
* and GPUVM for FSA64 clients (VI).
* Returns 0 for success, errors for failure.
*/
static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
{
uint64_t table_addr;
u32 tmp, field;
int i;
if (adev->gart.bo == NULL) {
dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
return -EINVAL;
}
amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
/* Setup TLB control */
tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
/* Setup L2 cache */
tmp = RREG32(mmVM_L2_CNTL);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
WREG32(mmVM_L2_CNTL, tmp);
tmp = RREG32(mmVM_L2_CNTL2);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
WREG32(mmVM_L2_CNTL2, tmp);
field = adev->vm_manager.fragment_size;
tmp = RREG32(mmVM_L2_CNTL3);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
WREG32(mmVM_L2_CNTL3, tmp);
/* XXX: set to enable PTE/PDE in system memory */
tmp = RREG32(mmVM_L2_CNTL4);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0);
WREG32(mmVM_L2_CNTL4, tmp);
/* setup context0 */
WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT0_CNTL2, 0);
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
WREG32(mmVM_CONTEXT0_CNTL, tmp);
WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0);
WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0);
WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0);
/* empty context1-15 */
/* FIXME start with 4G, once using 2 level pt switch to full
* vm size space
*/
/* set vm size, must be a multiple of 4 */
WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
for (i = 1; i < AMDGPU_NUM_VMID; i++) {
if (i < 8)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
table_addr >> 12);
else
WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
table_addr >> 12);
}
/* enable context1-15 */
WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(adev->dummy_page_addr >> 12));
WREG32(mmVM_CONTEXT1_CNTL2, 4);
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
adev->vm_manager.block_size - 9);
WREG32(mmVM_CONTEXT1_CNTL, tmp);
if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
gmc_v8_0_set_fault_enable_default(adev, false);
else
gmc_v8_0_set_fault_enable_default(adev, true);
gmc_v8_0_flush_gpu_tlb(adev, 0, 0, 0);
DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
(unsigned int)(adev->gmc.gart_size >> 20),
(unsigned long long)table_addr);
return 0;
}
static int gmc_v8_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.bo) {
WARN(1, "R600 PCIE GART already initialized\n");
return 0;
}
/* Initialize common gart structure */
r = amdgpu_gart_init(adev);
if (r)
return r;
adev->gart.table_size = adev->gart.num_gpu_pages * 8;
adev->gart.gart_pte_flags = AMDGPU_PTE_EXECUTABLE;
return amdgpu_gart_table_vram_alloc(adev);
}
/**
* gmc_v8_0_gart_disable - gart disable
*
* @adev: amdgpu_device pointer
*
* This disables all VM page table (VI).
*/
static void gmc_v8_0_gart_disable(struct amdgpu_device *adev)
{
u32 tmp;
/* Disable all tables */
WREG32(mmVM_CONTEXT0_CNTL, 0);
WREG32(mmVM_CONTEXT1_CNTL, 0);
/* Setup TLB control */
tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
/* Setup L2 cache */
tmp = RREG32(mmVM_L2_CNTL);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
WREG32(mmVM_L2_CNTL, tmp);
WREG32(mmVM_L2_CNTL2, 0);
}
/**
* gmc_v8_0_vm_decode_fault - print human readable fault info
*
* @adev: amdgpu_device pointer
* @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
* @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
* @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value
* @pasid: debug logging only - no functional use
*
* Print human readable fault information (VI).
*/
static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
u32 addr, u32 mc_client, unsigned int pasid)
{
u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
PROTECTIONS);
char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,