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linux/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
Christian König 140b519f7a drm/amdgpu: properly enable VM fault interrupts 
This fixes not printing VM faults.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-04 16:31:16 -04:00

1342 lines
37 KiB
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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 "drmP.h"
#include "amdgpu.h"
#include "cikd.h"
#include "cik.h"
#include "gmc_v7_0.h"
#include "amdgpu_ucode.h"
#include "bif/bif_4_1_d.h"
#include "bif/bif_4_1_sh_mask.h"
#include "gmc/gmc_7_1_d.h"
#include "gmc/gmc_7_1_sh_mask.h"
#include "oss/oss_2_0_d.h"
#include "oss/oss_2_0_sh_mask.h"
static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev);
static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
MODULE_FIRMWARE("radeon/boniare_mc.bin");
MODULE_FIRMWARE("radeon/hawaii_mc.bin");
/**
* gmc8_mc_wait_for_idle - wait for MC idle callback.
*
* @adev: amdgpu_device pointer
*
* Wait for the MC (memory controller) to be idle.
* (evergreen+).
* Returns 0 if the MC is idle, -1 if not.
*/
int gmc_v7_0_mc_wait_for_idle(struct amdgpu_device *adev)
{
unsigned i;
u32 tmp;
for (i = 0; i < adev->usec_timeout; i++) {
/* read MC_STATUS */
tmp = RREG32(mmSRBM_STATUS) & 0x1F00;
if (!tmp)
return 0;
udelay(1);
}
return -1;
}
void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
struct amdgpu_mode_mc_save *save)
{
u32 blackout;
if (adev->mode_info.num_crtc)
amdgpu_display_stop_mc_access(adev, save);
amdgpu_asic_wait_for_mc_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, 0);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
}
/* wait for the MC to settle */
udelay(100);
}
void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
struct amdgpu_mode_mc_save *save)
{
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);
if (adev->mode_info.num_crtc)
amdgpu_display_resume_mc_access(adev, save);
}
/**
* gmc_v7_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_v7_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_BONAIRE:
chip_name = "bonaire";
break;
case CHIP_HAWAII:
chip_name = "hawaii";
break;
case CHIP_KAVERI:
case CHIP_KABINI:
return 0;
default: BUG();
}
snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
if (err)
goto out;
err = amdgpu_ucode_validate(adev->mc.fw);
out:
if (err) {
printk(KERN_ERR
"cik_mc: Failed to load firmware \"%s\"\n",
fw_name);
release_firmware(adev->mc.fw);
adev->mc.fw = NULL;
}
return err;
}
/**
* gmc_v7_0_mc_load_microcode - load MC ucode into the hw
*
* @adev: amdgpu_device pointer
*
* Load the GDDR MC ucode into the hw (CIK).
* Returns 0 on success, error on failure.
*/
static int gmc_v7_0_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, blackout = 0;
int i, ucode_size, regs_size;
if (!adev->mc.fw)
return -EINVAL;
hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
amdgpu_ucode_print_mc_hdr(&hdr->header);
adev->mc.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->mc.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->mc.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) {
if (running) {
blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
}
/* 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);
}
if (running)
WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
}
return 0;
}
static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_mc *mc)
{
if (mc->mc_vram_size > 0xFFC0000000ULL) {
/* leave room for at least 1024M GTT */
dev_warn(adev->dev, "limiting VRAM\n");
mc->real_vram_size = 0xFFC0000000ULL;
mc->mc_vram_size = 0xFFC0000000ULL;
}
amdgpu_vram_location(adev, &adev->mc, 0);
adev->mc.gtt_base_align = 0;
amdgpu_gtt_location(adev, mc);
}
/**
* gmc_v7_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 (CIK).
*/
static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
{
struct amdgpu_mode_mc_save save;
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 (adev->mode_info.num_crtc)
amdgpu_display_set_vga_render_state(adev, false);
gmc_v7_0_mc_stop(adev, &save);
if (amdgpu_asic_wait_for_mc_idle(adev)) {
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
}
/* Update configuration */
WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
adev->mc.vram_start >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
adev->mc.vram_end >> 12);
WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
adev->vram_scratch.gpu_addr >> 12);
tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
WREG32(mmMC_VM_FB_LOCATION, tmp);
/* XXX double check these! */
WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.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 (amdgpu_asic_wait_for_mc_idle(adev)) {
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
}
gmc_v7_0_mc_resume(adev, &save);
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, 1);
WREG32(mmHDP_MISC_CNTL, tmp);
tmp = RREG32(mmHDP_HOST_PATH_CNTL);
WREG32(mmHDP_HOST_PATH_CNTL, tmp);
}
/**
* gmc_v7_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 (CIK).
* Returns 0 for success.
*/
static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
{
u32 tmp;
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->mc.vram_width = numchan * chansize;
/* Could aper size report 0 ? */
adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
/* size in MB on si */
adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
adev->mc.visible_vram_size = adev->mc.aper_size;
/* unless the user had overridden it, set the gart
* size equal to the 1024 or vram, whichever is larger.
*/
if (amdgpu_gart_size == -1)
adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
else
adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
gmc_v7_0_vram_gtt_location(adev, &adev->mc);
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_v7_0_gart_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
*
* Flush the TLB for the requested page table (CIK).
*/
static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
uint32_t vmid)
{
/* flush hdp cache */
WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
/* bits 0-15 are the VM contexts0-15 */
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
}
/**
* gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO
*
* @adev: amdgpu_device pointer
* @cpu_pt_addr: cpu address of the page table
* @gpu_page_idx: entry in the page table to update
* @addr: dst addr to write into pte/pde
* @flags: access flags
*
* Update the page tables using the CPU.
*/
static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev,
void *cpu_pt_addr,
uint32_t gpu_page_idx,
uint64_t addr,
uint32_t flags)
{
void __iomem *ptr = (void *)cpu_pt_addr;
uint64_t value;
value = addr & 0xFFFFFFFFFFFFF000ULL;
value |= flags;
writeq(value, ptr + (gpu_page_idx * 8));
return 0;
}
/**
* gmc_v7_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 (CIK).
* Returns 0 for success, errors for failure.
*/
static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
{
int r, i;
u32 tmp;
if (adev->gart.robj == NULL) {
dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
return -EINVAL;
}
r = amdgpu_gart_table_vram_pin(adev);
if (r)
return r;
/* 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);
WREG32(mmVM_L2_CNTL, tmp);
tmp = REG_SET_FIELD(0, 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);
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, 4);
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
WREG32(mmVM_L2_CNTL3, tmp);
/* setup context0 */
WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, (adev->mc.gtt_end >> 12) - 1);
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.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(0x575, 0);
WREG32(0x576, 0);
WREG32(0x577, 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 < 16; i++) {
if (i < 8)
WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
adev->gart.table_addr >> 12);
else
WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
adev->gart.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, PAGE_TABLE_BLOCK_SIZE,
amdgpu_vm_block_size - 9);
WREG32(mmVM_CONTEXT1_CNTL, tmp);
if (adev->asic_type == CHIP_KAVERI) {
tmp = RREG32(mmCHUB_CONTROL);
tmp &= ~BYPASS_VM;
WREG32(mmCHUB_CONTROL, tmp);
}
gmc_v7_0_gart_flush_gpu_tlb(adev, 0);
DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
(unsigned)(adev->mc.gtt_size >> 20),
(unsigned long long)adev->gart.table_addr);
adev->gart.ready = true;
return 0;
}
static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.robj) {
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;
return amdgpu_gart_table_vram_alloc(adev);
}
/**
* gmc_v7_0_gart_disable - gart disable
*
* @adev: amdgpu_device pointer
*
* This disables all VM page table (CIK).
*/
static void gmc_v7_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);
amdgpu_gart_table_vram_unpin(adev);
}
/**
* gmc_v7_0_gart_fini - vm fini callback
*
* @adev: amdgpu_device pointer
*
* Tears down the driver GART/VM setup (CIK).
*/
static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
{
amdgpu_gart_table_vram_free(adev);
amdgpu_gart_fini(adev);
}
/*
* vm
* 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_v7_0_vm_init - cik vm init callback
*
* @adev: amdgpu_device pointer
*
* Inits cik specific vm parameters (number of VMs, base of vram for
* VMIDs 1-15) (CIK).
* Returns 0 for success.
*/
static int gmc_v7_0_vm_init(struct amdgpu_device *adev)
{
/*
* number of VMs
* VMID 0 is reserved for System
* amdgpu graphics/compute will use VMIDs 1-7
* amdkfd will use VMIDs 8-15
*/
adev->vm_manager.nvm = AMDGPU_NUM_OF_VMIDS;
/* base offset of vram pages */
if (adev->flags & AMD_IS_APU) {
u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
tmp <<= 22;
adev->vm_manager.vram_base_offset = tmp;
} else
adev->vm_manager.vram_base_offset = 0;
return 0;
}
/**
* gmc_v7_0_vm_fini - cik vm fini callback
*
* @adev: amdgpu_device pointer
*
* Tear down any asic specific VM setup (CIK).
*/
static void gmc_v7_0_vm_fini(struct amdgpu_device *adev)
{
}
/**
* gmc_v7_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
*
* Print human readable fault information (CIK).
*/
static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev,
u32 status, u32 addr, u32 mc_client)
{
u32 mc_id;
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,
(mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
MEMORY_CLIENT_ID);
printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
protections, vmid, addr,
REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
MEMORY_CLIENT_RW) ?
"write" : "read", block, mc_client, mc_id);
}
static const u32 mc_cg_registers[] = {
mmMC_HUB_MISC_HUB_CG,
mmMC_HUB_MISC_SIP_CG,
mmMC_HUB_MISC_VM_CG,
mmMC_XPB_CLK_GAT,
mmATC_MISC_CG,
mmMC_CITF_MISC_WR_CG,
mmMC_CITF_MISC_RD_CG,
mmMC_CITF_MISC_VM_CG,
mmVM_L2_CG,
};
static const u32 mc_cg_ls_en[] = {
MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
ATC_MISC_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
VM_L2_CG__MEM_LS_ENABLE_MASK,
};
static const u32 mc_cg_en[] = {
MC_HUB_MISC_HUB_CG__ENABLE_MASK,
MC_HUB_MISC_SIP_CG__ENABLE_MASK,
MC_HUB_MISC_VM_CG__ENABLE_MASK,
MC_XPB_CLK_GAT__ENABLE_MASK,
ATC_MISC_CG__ENABLE_MASK,
MC_CITF_MISC_WR_CG__ENABLE_MASK,
MC_CITF_MISC_RD_CG__ENABLE_MASK,
MC_CITF_MISC_VM_CG__ENABLE_MASK,
VM_L2_CG__ENABLE_MASK,
};
static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
bool enable)
{
int i;
u32 orig, data;
for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
orig = data = RREG32(mc_cg_registers[i]);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
data |= mc_cg_ls_en[i];
else
data &= ~mc_cg_ls_en[i];
if (data != orig)
WREG32(mc_cg_registers[i], data);
}
}
static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
bool enable)
{
int i;
u32 orig, data;
for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
orig = data = RREG32(mc_cg_registers[i]);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
data |= mc_cg_en[i];
else
data &= ~mc_cg_en[i];
if (data != orig)
WREG32(mc_cg_registers[i], data);
}
}
static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32_PCIE(ixPCIE_CNTL2);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
} else {
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
}
if (orig != data)
WREG32_PCIE(ixPCIE_CNTL2, data);
}
static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
else
data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
if (orig != data)
WREG32(mmHDP_HOST_PATH_CNTL, data);
}
static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
bool enable)
{
u32 orig, data;
orig = data = RREG32(mmHDP_MEM_POWER_LS);
if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
else
data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
if (orig != data)
WREG32(mmHDP_MEM_POWER_LS, data);
}
static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
{
switch (mc_seq_vram_type) {
case MC_SEQ_MISC0__MT__GDDR1:
return AMDGPU_VRAM_TYPE_GDDR1;
case MC_SEQ_MISC0__MT__DDR2:
return AMDGPU_VRAM_TYPE_DDR2;
case MC_SEQ_MISC0__MT__GDDR3:
return AMDGPU_VRAM_TYPE_GDDR3;
case MC_SEQ_MISC0__MT__GDDR4:
return AMDGPU_VRAM_TYPE_GDDR4;
case MC_SEQ_MISC0__MT__GDDR5:
return AMDGPU_VRAM_TYPE_GDDR5;
case MC_SEQ_MISC0__MT__HBM:
return AMDGPU_VRAM_TYPE_HBM;
case MC_SEQ_MISC0__MT__DDR3:
return AMDGPU_VRAM_TYPE_DDR3;
default:
return AMDGPU_VRAM_TYPE_UNKNOWN;
}
}
static int gmc_v7_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v7_0_set_gart_funcs(adev);
gmc_v7_0_set_irq_funcs(adev);
if (adev->flags & AMD_IS_APU) {
adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
} else {
u32 tmp = RREG32(mmMC_SEQ_MISC0);
tmp &= MC_SEQ_MISC0__MT__MASK;
adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
}
return 0;
}
static int gmc_v7_0_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
}
static int gmc_v7_0_sw_init(void *handle)
{
int r;
int dma_bits;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = amdgpu_gem_init(adev);
if (r)
return r;
r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
if (r)
return r;
r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
if (r)
return r;
/* Adjust VM size here.
* Currently set to 4GB ((1 << 20) 4k pages).
* Max GPUVM size for cayman and SI is 40 bits.
*/
adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
/* Set the internal MC address mask
* This is the max address of the GPU's
* internal address space.
*/
adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
/* set DMA mask + need_dma32 flags.
* PCIE - can handle 40-bits.
* IGP - can handle 40-bits
* PCI - dma32 for legacy pci gart, 40 bits on newer asics
*/
adev->need_dma32 = false;
dma_bits = adev->need_dma32 ? 32 : 40;
r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
if (r) {
adev->need_dma32 = true;
dma_bits = 32;
printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
}
r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
if (r) {
pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
}
r = gmc_v7_0_init_microcode(adev);
if (r) {
DRM_ERROR("Failed to load mc firmware!\n");
return r;
}
r = gmc_v7_0_mc_init(adev);
if (r)
return r;
/* Memory manager */
r = amdgpu_bo_init(adev);
if (r)
return r;
r = gmc_v7_0_gart_init(adev);
if (r)
return r;
if (!adev->vm_manager.enabled) {
r = gmc_v7_0_vm_init(adev);
if (r) {
dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
return r;
}
adev->vm_manager.enabled = true;
}
return r;
}
static int gmc_v7_0_sw_fini(void *handle)
{
int i;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (adev->vm_manager.enabled) {
for (i = 0; i < AMDGPU_NUM_VM; ++i)
amdgpu_fence_unref(&adev->vm_manager.active[i]);
gmc_v7_0_vm_fini(adev);
adev->vm_manager.enabled = false;
}
gmc_v7_0_gart_fini(adev);
amdgpu_gem_fini(adev);
amdgpu_bo_fini(adev);
return 0;
}
static int gmc_v7_0_hw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v7_0_mc_program(adev);
if (!(adev->flags & AMD_IS_APU)) {
r = gmc_v7_0_mc_load_microcode(adev);
if (r) {
DRM_ERROR("Failed to load MC firmware!\n");
return r;
}
}
r = gmc_v7_0_gart_enable(adev);
if (r)
return r;
return r;
}
static int gmc_v7_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
gmc_v7_0_gart_disable(adev);
return 0;
}
static int gmc_v7_0_suspend(void *handle)
{
int i;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (adev->vm_manager.enabled) {
for (i = 0; i < AMDGPU_NUM_VM; ++i)
amdgpu_fence_unref(&adev->vm_manager.active[i]);
gmc_v7_0_vm_fini(adev);
adev->vm_manager.enabled = false;
}
gmc_v7_0_hw_fini(adev);
return 0;
}
static int gmc_v7_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = gmc_v7_0_hw_init(adev);
if (r)
return r;
if (!adev->vm_manager.enabled) {
r = gmc_v7_0_vm_init(adev);
if (r) {
dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
return r;
}
adev->vm_manager.enabled = true;
}
return r;
}
static bool gmc_v7_0_is_idle(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
u32 tmp = RREG32(mmSRBM_STATUS);
if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
return false;
return true;
}
static int gmc_v7_0_wait_for_idle(void *handle)
{
unsigned i;
u32 tmp;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
for (i = 0; i < adev->usec_timeout; i++) {
/* read MC_STATUS */
tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
SRBM_STATUS__MCC_BUSY_MASK |
SRBM_STATUS__MCD_BUSY_MASK |
SRBM_STATUS__VMC_BUSY_MASK);
if (!tmp)
return 0;
udelay(1);
}
return -ETIMEDOUT;
}
static void gmc_v7_0_print_status(void *handle)
{
int i, j;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
dev_info(adev->dev, "GMC 8.x registers\n");
dev_info(adev->dev, " SRBM_STATUS=0x%08X\n",
RREG32(mmSRBM_STATUS));
dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
RREG32(mmSRBM_STATUS2));
dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR));
dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS));
dev_info(adev->dev, " MC_VM_MX_L1_TLB_CNTL=0x%08X\n",
RREG32(mmMC_VM_MX_L1_TLB_CNTL));
dev_info(adev->dev, " VM_L2_CNTL=0x%08X\n",
RREG32(mmVM_L2_CNTL));
dev_info(adev->dev, " VM_L2_CNTL2=0x%08X\n",
RREG32(mmVM_L2_CNTL2));
dev_info(adev->dev, " VM_L2_CNTL3=0x%08X\n",
RREG32(mmVM_L2_CNTL3));
dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR));
dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR));
dev_info(adev->dev, " VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR));
dev_info(adev->dev, " VM_CONTEXT0_CNTL2=0x%08X\n",
RREG32(mmVM_CONTEXT0_CNTL2));
dev_info(adev->dev, " VM_CONTEXT0_CNTL=0x%08X\n",
RREG32(mmVM_CONTEXT0_CNTL));
dev_info(adev->dev, " 0x15D4=0x%08X\n",
RREG32(0x575));
dev_info(adev->dev, " 0x15D8=0x%08X\n",
RREG32(0x576));
dev_info(adev->dev, " 0x15DC=0x%08X\n",
RREG32(0x577));
dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR));
dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR));
dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR));
dev_info(adev->dev, " VM_CONTEXT1_CNTL2=0x%08X\n",
RREG32(mmVM_CONTEXT1_CNTL2));
dev_info(adev->dev, " VM_CONTEXT1_CNTL=0x%08X\n",
RREG32(mmVM_CONTEXT1_CNTL));
for (i = 0; i < 16; i++) {
if (i < 8)
dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i));
else
dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8));
}
dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n",
RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR));
dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n",
RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR));
dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n",
RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR));
dev_info(adev->dev, " MC_VM_FB_LOCATION=0x%08X\n",
RREG32(mmMC_VM_FB_LOCATION));
dev_info(adev->dev, " MC_VM_AGP_BASE=0x%08X\n",
RREG32(mmMC_VM_AGP_BASE));
dev_info(adev->dev, " MC_VM_AGP_TOP=0x%08X\n",
RREG32(mmMC_VM_AGP_TOP));
dev_info(adev->dev, " MC_VM_AGP_BOT=0x%08X\n",
RREG32(mmMC_VM_AGP_BOT));
if (adev->asic_type == CHIP_KAVERI) {
dev_info(adev->dev, " CHUB_CONTROL=0x%08X\n",
RREG32(mmCHUB_CONTROL));
}
dev_info(adev->dev, " HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n",
RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL));
dev_info(adev->dev, " HDP_NONSURFACE_BASE=0x%08X\n",
RREG32(mmHDP_NONSURFACE_BASE));
dev_info(adev->dev, " HDP_NONSURFACE_INFO=0x%08X\n",
RREG32(mmHDP_NONSURFACE_INFO));
dev_info(adev->dev, " HDP_NONSURFACE_SIZE=0x%08X\n",
RREG32(mmHDP_NONSURFACE_SIZE));
dev_info(adev->dev, " HDP_MISC_CNTL=0x%08X\n",
RREG32(mmHDP_MISC_CNTL));
dev_info(adev->dev, " HDP_HOST_PATH_CNTL=0x%08X\n",
RREG32(mmHDP_HOST_PATH_CNTL));
for (i = 0, j = 0; i < 32; i++, j += 0x6) {
dev_info(adev->dev, " %d:\n", i);
dev_info(adev->dev, " 0x%04X=0x%08X\n",
0xb05 + j, RREG32(0xb05 + j));
dev_info(adev->dev, " 0x%04X=0x%08X\n",
0xb06 + j, RREG32(0xb06 + j));
dev_info(adev->dev, " 0x%04X=0x%08X\n",
0xb07 + j, RREG32(0xb07 + j));
dev_info(adev->dev, " 0x%04X=0x%08X\n",
0xb08 + j, RREG32(0xb08 + j));
dev_info(adev->dev, " 0x%04X=0x%08X\n",
0xb09 + j, RREG32(0xb09 + j));
}
dev_info(adev->dev, " BIF_FB_EN=0x%08X\n",
RREG32(mmBIF_FB_EN));
}
static int gmc_v7_0_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct amdgpu_mode_mc_save save;
u32 srbm_soft_reset = 0;
u32 tmp = RREG32(mmSRBM_STATUS);
if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
if (!(adev->flags & AMD_IS_APU))
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
}
if (srbm_soft_reset) {
gmc_v7_0_print_status((void *)adev);
gmc_v7_0_mc_stop(adev, &save);
if (gmc_v7_0_wait_for_idle(adev)) {
dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
}
tmp = RREG32(mmSRBM_SOFT_RESET);
tmp |= srbm_soft_reset;
dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
udelay(50);
tmp &= ~srbm_soft_reset;
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
/* Wait a little for things to settle down */
udelay(50);
gmc_v7_0_mc_resume(adev, &save);
udelay(50);
gmc_v7_0_print_status((void *)adev);
}
return 0;
}
static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp;
u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
/* system context */
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp &= ~bits;
WREG32(mmVM_CONTEXT0_CNTL, tmp);
/* VMs */
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp &= ~bits;
WREG32(mmVM_CONTEXT1_CNTL, tmp);
break;
case AMDGPU_IRQ_STATE_ENABLE:
/* system context */
tmp = RREG32(mmVM_CONTEXT0_CNTL);
tmp |= bits;
WREG32(mmVM_CONTEXT0_CNTL, tmp);
/* VMs */
tmp = RREG32(mmVM_CONTEXT1_CNTL);
tmp |= bits;
WREG32(mmVM_CONTEXT1_CNTL, tmp);
break;
default:
break;
}
return 0;
}
static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
u32 addr, status, mc_client;
addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
entry->src_id, entry->src_data);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
addr);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
status);
gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
/* reset addr and status */
WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
return 0;
}
static int gmc_v7_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
bool gate = false;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (state == AMD_CG_STATE_GATE)
gate = true;
if (!(adev->flags & AMD_IS_APU)) {
gmc_v7_0_enable_mc_mgcg(adev, gate);
gmc_v7_0_enable_mc_ls(adev, gate);
}
gmc_v7_0_enable_bif_mgls(adev, gate);
gmc_v7_0_enable_hdp_mgcg(adev, gate);
gmc_v7_0_enable_hdp_ls(adev, gate);
return 0;
}
static int gmc_v7_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
.early_init = gmc_v7_0_early_init,
.late_init = gmc_v7_0_late_init,
.sw_init = gmc_v7_0_sw_init,
.sw_fini = gmc_v7_0_sw_fini,
.hw_init = gmc_v7_0_hw_init,
.hw_fini = gmc_v7_0_hw_fini,
.suspend = gmc_v7_0_suspend,
.resume = gmc_v7_0_resume,
.is_idle = gmc_v7_0_is_idle,
.wait_for_idle = gmc_v7_0_wait_for_idle,
.soft_reset = gmc_v7_0_soft_reset,
.print_status = gmc_v7_0_print_status,
.set_clockgating_state = gmc_v7_0_set_clockgating_state,
.set_powergating_state = gmc_v7_0_set_powergating_state,
};
static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
.flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
.set_pte_pde = gmc_v7_0_gart_set_pte_pde,
};
static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
.set = gmc_v7_0_vm_fault_interrupt_state,
.process = gmc_v7_0_process_interrupt,
};
static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev)
{
if (adev->gart.gart_funcs == NULL)
adev->gart.gart_funcs = &gmc_v7_0_gart_funcs;
}
static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
{
adev->mc.vm_fault.num_types = 1;
adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
}
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