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linux/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

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/*
* Copyright 2019 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/pci.h>
#include "amdgpu.h"
#include "amdgpu_atomfirmware.h"
#include "gmc_v10_0.h"
#include "hdp/hdp_5_0_0_offset.h"
#include "hdp/hdp_5_0_0_sh_mask.h"
#include "gc/gc_10_1_0_sh_mask.h"
#include "mmhub/mmhub_2_0_0_sh_mask.h"
#include "dcn/dcn_2_0_0_offset.h"
#include "dcn/dcn_2_0_0_sh_mask.h"
#include "oss/osssys_5_0_0_offset.h"
#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
#include "navi10_enum.h"
#include "soc15.h"
#include "soc15_common.h"
#include "nbio_v2_3.h"
#include "gfxhub_v2_0.h"
#include "mmhub_v2_0.h"
#include "athub_v2_0.h"
/* XXX Move this macro to navi10 header file, which is like vid.h for VI.*/
#define AMDGPU_NUM_OF_VMIDS 8
#if 0
static const struct soc15_reg_golden golden_settings_navi10_hdp[] =
{
/* TODO add golden setting for hdp */
};
#endif
static int
gmc_v10_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src, unsigned type,
enum amdgpu_interrupt_state state)
{
struct amdgpu_vmhub *hub;
u32 tmp, reg, bits[AMDGPU_MAX_VMHUBS], i;
bits[AMDGPU_GFXHUB_0] = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
bits[AMDGPU_MMHUB_0] = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
/* MM HUB */
hub = &adev->vmhub[AMDGPU_MMHUB_0];
for (i = 0; i < 16; i++) {
reg = hub->vm_context0_cntl + i;
tmp = RREG32(reg);
tmp &= ~bits[AMDGPU_MMHUB_0];
WREG32(reg, tmp);
}
/* GFX HUB */
hub = &adev->vmhub[AMDGPU_GFXHUB_0];
for (i = 0; i < 16; i++) {
reg = hub->vm_context0_cntl + i;
tmp = RREG32(reg);
tmp &= ~bits[AMDGPU_GFXHUB_0];
WREG32(reg, tmp);
}
break;
case AMDGPU_IRQ_STATE_ENABLE:
/* MM HUB */
hub = &adev->vmhub[AMDGPU_MMHUB_0];
for (i = 0; i < 16; i++) {
reg = hub->vm_context0_cntl + i;
tmp = RREG32(reg);
tmp |= bits[AMDGPU_MMHUB_0];
WREG32(reg, tmp);
}
/* GFX HUB */
hub = &adev->vmhub[AMDGPU_GFXHUB_0];
for (i = 0; i < 16; i++) {
reg = hub->vm_context0_cntl + i;
tmp = RREG32(reg);
tmp |= bits[AMDGPU_GFXHUB_0];
WREG32(reg, tmp);
}
break;
default:
break;
}
return 0;
}
static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
uint32_t status = 0;
u64 addr;
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
if (!amdgpu_sriov_vf(adev)) {
/*
* Issue a dummy read to wait for the status register to
* be updated to avoid reading an incorrect value due to
* the new fast GRBM interface.
*/
if (entry->vmid_src == AMDGPU_GFXHUB_0)
RREG32(hub->vm_l2_pro_fault_status);
status = RREG32(hub->vm_l2_pro_fault_status);
WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
}
if (printk_ratelimit()) {
struct amdgpu_task_info task_info;
memset(&task_info, 0, sizeof(struct amdgpu_task_info));
amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
dev_err(adev->dev,
"[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, "
"for process %s pid %d thread %s pid %d)\n",
entry->vmid_src ? "mmhub" : "gfxhub",
entry->src_id, entry->ring_id, entry->vmid,
entry->pasid, task_info.process_name, task_info.tgid,
task_info.task_name, task_info.pid);
dev_err(adev->dev, " in page starting at address 0x%016llx from client %d\n",
addr, entry->client_id);
if (!amdgpu_sriov_vf(adev)) {
dev_err(adev->dev,
"GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
status);
dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
REG_GET_FIELD(status,
GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
REG_GET_FIELD(status,
GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
REG_GET_FIELD(status,
GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
REG_GET_FIELD(status,
GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
dev_err(adev->dev, "\t RW: 0x%lx\n",
REG_GET_FIELD(status,
GCVM_L2_PROTECTION_FAULT_STATUS, RW));
}
}
return 0;
}
static const struct amdgpu_irq_src_funcs gmc_v10_0_irq_funcs = {
.set = gmc_v10_0_vm_fault_interrupt_state,
.process = gmc_v10_0_process_interrupt,
};
static void gmc_v10_0_set_irq_funcs(struct amdgpu_device *adev)
{
adev->gmc.vm_fault.num_types = 1;
adev->gmc.vm_fault.funcs = &gmc_v10_0_irq_funcs;
}
static uint32_t gmc_v10_0_get_invalidate_req(unsigned int vmid,
uint32_t flush_type)
{
u32 req = 0;
/* invalidate using legacy mode on vmid*/
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
PER_VMID_INVALIDATE_REQ, 1 << vmid);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
return req;
}
/**
* gmc_v10_0_use_invalidate_semaphore - judge whether to use semaphore
*
* @adev: amdgpu_device pointer
* @vmhub: vmhub type
*
*/
static bool gmc_v10_0_use_invalidate_semaphore(struct amdgpu_device *adev,
uint32_t vmhub)
{
return ((vmhub == AMDGPU_MMHUB_0 ||
vmhub == AMDGPU_MMHUB_1) &&
(!amdgpu_sriov_vf(adev)));
}
/*
* 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.
*/
static void gmc_v10_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
unsigned int vmhub, uint32_t flush_type)
{
bool use_semaphore = gmc_v10_0_use_invalidate_semaphore(adev, vmhub);
struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
u32 tmp = gmc_v10_0_get_invalidate_req(vmid, flush_type);
/* Use register 17 for GART */
const unsigned eng = 17;
unsigned int i;
spin_lock(&adev->gmc.invalidate_lock);
/*
* It may lose gpuvm invalidate acknowldege state across power-gating
* off cycle, add semaphore acquire before invalidation and semaphore
* release after invalidation to avoid entering power gated state
* to WA the Issue
*/
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore) {
for (i = 0; i < adev->usec_timeout; i++) {
/* a read return value of 1 means semaphore acuqire */
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_sem + eng);
if (tmp & 0x1)
break;
udelay(1);
}
if (i >= adev->usec_timeout)
DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n");
}
WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
/*
* Issue a dummy read to wait for the ACK register to be cleared
* to avoid a false ACK due to the new fast GRBM interface.
*/
if (vmhub == AMDGPU_GFXHUB_0)
RREG32_NO_KIQ(hub->vm_inv_eng0_req + eng);
/* Wait for ACK with a delay.*/
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
tmp &= 1 << vmid;
if (tmp)
break;
udelay(1);
}
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/*
* add semaphore release after invalidation,
* write with 0 means semaphore release
*/
WREG32_NO_KIQ(hub->vm_inv_eng0_sem + eng, 0);
spin_unlock(&adev->gmc.invalidate_lock);
if (i < adev->usec_timeout)
return;
DRM_ERROR("Timeout waiting for VM flush ACK!\n");
}
/**
* gmc_v10_0_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
*
* Flush the TLB for the requested page table.
*/
static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type)
{
struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
struct dma_fence *fence;
struct amdgpu_job *job;
int r;
/* flush hdp cache */
adev->nbio.funcs->hdp_flush(adev, NULL);
mutex_lock(&adev->mman.gtt_window_lock);
if (vmhub == AMDGPU_MMHUB_0) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
}
BUG_ON(vmhub != AMDGPU_GFXHUB_0);
if (!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready ||
adev->in_gpu_reset ||
ring->sched.ready == false) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
}
/* The SDMA on Navi has a bug which can theoretically result in memory
* corruption if an invalidation happens at the same time as an VA
* translation. Avoid this by doing the invalidation from the SDMA
* itself.
*/
r = amdgpu_job_alloc_with_ib(adev, 16 * 4, &job);
if (r)
goto error_alloc;
job->vm_pd_addr = amdgpu_gmc_pd_addr(adev->gart.bo);
job->vm_needs_flush = true;
job->ibs->ptr[job->ibs->length_dw++] = ring->funcs->nop;
amdgpu_ring_pad_ib(ring, &job->ibs[0]);
r = amdgpu_job_submit(job, &adev->mman.entity,
AMDGPU_FENCE_OWNER_UNDEFINED, &fence);
if (r)
goto error_submit;
mutex_unlock(&adev->mman.gtt_window_lock);
dma_fence_wait(fence, false);
dma_fence_put(fence);
return;
error_submit:
amdgpu_job_free(job);
error_alloc:
mutex_unlock(&adev->mman.gtt_window_lock);
DRM_ERROR("Error flushing GPU TLB using the SDMA (%d)!\n", r);
}
static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, uint64_t pd_addr)
{
bool use_semaphore = gmc_v10_0_use_invalidate_semaphore(ring->adev, ring->funcs->vmhub);
struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
uint32_t req = gmc_v10_0_get_invalidate_req(vmid, 0);
unsigned eng = ring->vm_inv_eng;
/*
* It may lose gpuvm invalidate acknowldege state across power-gating
* off cycle, add semaphore acquire before invalidation and semaphore
* release after invalidation to avoid entering power gated state
* to WA the Issue
*/
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/* a read return value of 1 means semaphore acuqire */
amdgpu_ring_emit_reg_wait(ring,
hub->vm_inv_eng0_sem + eng, 0x1, 0x1);
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid),
lower_32_bits(pd_addr));
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
upper_32_bits(pd_addr));
amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng,
hub->vm_inv_eng0_ack + eng,
req, 1 << vmid);
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/*
* add semaphore release after invalidation,
* write with 0 means semaphore release
*/
amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_sem + eng, 0);
return pd_addr;
}
static void gmc_v10_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
unsigned pasid)
{
struct amdgpu_device *adev = ring->adev;
uint32_t reg;
if (ring->funcs->vmhub == AMDGPU_GFXHUB_0)
reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
else
reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
amdgpu_ring_emit_wreg(ring, reg, pasid);
}
/*
* PTE format on NAVI 10:
* 63:59 reserved
* 58:57 reserved
* 56 F
* 55 L
* 54 reserved
* 53:52 SW
* 51 T
* 50:48 mtype
* 47:12 4k physical page base address
* 11:7 fragment
* 6 write
* 5 read
* 4 exe
* 3 Z
* 2 snooped
* 1 system
* 0 valid
*
* PDE format on NAVI 10:
* 63:59 block fragment size
* 58:55 reserved
* 54 P
* 53:48 reserved
* 47:6 physical base address of PD or PTE
* 5:3 reserved
* 2 C
* 1 system
* 0 valid
*/
static uint64_t gmc_v10_0_map_mtype(struct amdgpu_device *adev, uint32_t flags)
{
switch (flags) {
case AMDGPU_VM_MTYPE_DEFAULT:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
case AMDGPU_VM_MTYPE_NC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
case AMDGPU_VM_MTYPE_WC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_WC);
case AMDGPU_VM_MTYPE_CC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_CC);
case AMDGPU_VM_MTYPE_UC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_UC);
default:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
}
}
static void gmc_v10_0_get_vm_pde(struct amdgpu_device *adev, int level,
uint64_t *addr, uint64_t *flags)
{
if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM))
*addr = adev->vm_manager.vram_base_offset + *addr -
adev->gmc.vram_start;
BUG_ON(*addr & 0xFFFF00000000003FULL);
if (!adev->gmc.translate_further)
return;
if (level == AMDGPU_VM_PDB1) {
/* Set the block fragment size */
if (!(*flags & AMDGPU_PDE_PTE))
*flags |= AMDGPU_PDE_BFS(0x9);
} else if (level == AMDGPU_VM_PDB0) {
if (*flags & AMDGPU_PDE_PTE)
*flags &= ~AMDGPU_PDE_PTE;
else
*flags |= AMDGPU_PTE_TF;
}
}
static void gmc_v10_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_MTYPE_NV10_MASK;
*flags |= (mapping->flags & AMDGPU_PTE_MTYPE_NV10_MASK);
if (mapping->flags & AMDGPU_PTE_PRT) {
*flags |= AMDGPU_PTE_PRT;
*flags |= AMDGPU_PTE_SNOOPED;
*flags |= AMDGPU_PTE_LOG;
*flags |= AMDGPU_PTE_SYSTEM;
*flags &= ~AMDGPU_PTE_VALID;
}
}
static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb,
.emit_flush_gpu_tlb = gmc_v10_0_emit_flush_gpu_tlb,
.emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping,
.map_mtype = gmc_v10_0_map_mtype,
.get_vm_pde = gmc_v10_0_get_vm_pde,
.get_vm_pte = gmc_v10_0_get_vm_pte
};
static void gmc_v10_0_set_gmc_funcs(struct amdgpu_device *adev)
{
if (adev->gmc.gmc_funcs == NULL)
adev->gmc.gmc_funcs = &gmc_v10_0_gmc_funcs;
}
static int gmc_v10_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v10_0_set_gmc_funcs(adev);
gmc_v10_0_set_irq_funcs(adev);
adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
adev->gmc.shared_aperture_end =
adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
adev->gmc.private_aperture_start = 0x1000000000000000ULL;
adev->gmc.private_aperture_end =
adev->gmc.private_aperture_start + (4ULL << 30) - 1;
return 0;
}
static int gmc_v10_0_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 };
unsigned i;
for(i = 0; i < adev->num_rings; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
unsigned vmhub = ring->funcs->vmhub;
ring->vm_inv_eng = vm_inv_eng[vmhub]++;
dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n",
ring->idx, ring->name, ring->vm_inv_eng,
ring->funcs->vmhub);
}
/* Engine 17 is used for GART flushes */
for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i)
BUG_ON(vm_inv_eng[i] > 17);
return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
}
static void gmc_v10_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc)
{
u64 base = 0;
base = gfxhub_v2_0_get_fb_location(adev);
amdgpu_gmc_vram_location(adev, &adev->gmc, base);
amdgpu_gmc_gart_location(adev, mc);
/* base offset of vram pages */
adev->vm_manager.vram_base_offset = gfxhub_v2_0_get_mc_fb_offset(adev);
}
/**
* gmc_v10_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.
* Returns 0 for success.
*/
static int gmc_v10_0_mc_init(struct amdgpu_device *adev)
{
/* Could aper size report 0 ? */
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
/* size in MB on si */
adev->gmc.mc_vram_size =
adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
adev->gmc.visible_vram_size = adev->gmc.aper_size;
/* In case the PCI BAR is larger than the actual amount of vram */
if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
/* set the gart size */
if (amdgpu_gart_size == -1) {
switch (adev->asic_type) {
case CHIP_NAVI10:
case CHIP_NAVI14:
case CHIP_NAVI12:
default:
adev->gmc.gart_size = 512ULL << 20;
break;
}
} else
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
gmc_v10_0_vram_gtt_location(adev, &adev->gmc);
return 0;
}
static int gmc_v10_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.bo) {
WARN(1, "NAVI10 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_MTYPE_NV10(MTYPE_UC) |
AMDGPU_PTE_EXECUTABLE;
return amdgpu_gart_table_vram_alloc(adev);
}
static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev)
{
u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
unsigned size;
if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
} else {
u32 viewport;
u32 pitch;
viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH);
size = (REG_GET_FIELD(viewport,
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) *
4);
}
/* return 0 if the pre-OS buffer uses up most of vram */
if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) {
DRM_ERROR("Warning: pre-OS buffer uses most of vram, \
be aware of gart table overwrite\n");
return 0;
}
return size;
}
static int gmc_v10_0_sw_init(void *handle)
{
int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gfxhub_v2_0_init(adev);
mmhub_v2_0_init(adev);
spin_lock_init(&adev->gmc.invalidate_lock);
r = amdgpu_atomfirmware_get_vram_info(adev,
&vram_width, &vram_type, &vram_vendor);
if (!amdgpu_emu_mode)
adev->gmc.vram_width = vram_width;
else
adev->gmc.vram_width = 1 * 128; /* numchan * chansize */
adev->gmc.vram_type = vram_type;
adev->gmc.vram_vendor = vram_vendor;
switch (adev->asic_type) {
case CHIP_NAVI10:
case CHIP_NAVI14:
case CHIP_NAVI12:
adev->num_vmhubs = 2;
/*
* To fulfill 4-level page support,
* vm size is 256TB (48bit), maximum size of Navi10/Navi14/Navi12,
* block size 512 (9bit)
*/
amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
break;
default:
break;
}
/* This interrupt is VMC page fault.*/
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC,
VMC_1_0__SRCID__VM_FAULT,
&adev->gmc.vm_fault);
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2,
UTCL2_1_0__SRCID__FAULT,
&adev->gmc.vm_fault);
if (r)
return r;
/*
* Set the internal MC address mask This is the max address of the GPU's
* internal address space.
*/
adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
/*
* Reserve 8M stolen memory for navi10 like vega10
* TODO: will check if it's really needed on asic.
*/
if (amdgpu_emu_mode == 1)
adev->gmc.stolen_size = 0;
else
adev->gmc.stolen_size = 9 * 1024 *1024;
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
if (r) {
printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
return r;
}
r = gmc_v10_0_mc_init(adev);
if (r)
return r;
adev->gmc.stolen_size = gmc_v10_0_get_vbios_fb_size(adev);
/* Memory manager */
r = amdgpu_bo_init(adev);
if (r)
return r;
r = gmc_v10_0_gart_init(adev);
if (r)
return r;
/*
* 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.id_mgr[AMDGPU_GFXHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS;
adev->vm_manager.id_mgr[AMDGPU_MMHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS;
amdgpu_vm_manager_init(adev);
return 0;
}
/**
* gmc_v8_0_gart_fini - vm fini callback
*
* @adev: amdgpu_device pointer
*
* Tears down the driver GART/VM setup (CIK).
*/
static void gmc_v10_0_gart_fini(struct amdgpu_device *adev)
{
amdgpu_gart_table_vram_free(adev);
amdgpu_gart_fini(adev);
}
static int gmc_v10_0_sw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_vm_manager_fini(adev);
gmc_v10_0_gart_fini(adev);
amdgpu_gem_force_release(adev);
amdgpu_bo_fini(adev);
return 0;
}
static void gmc_v10_0_init_golden_registers(struct amdgpu_device *adev)
{
switch (adev->asic_type) {
case CHIP_NAVI10:
case CHIP_NAVI14:
case CHIP_NAVI12:
break;
default:
break;
}
}
/**
* gmc_v10_0_gart_enable - gart enable
*
* @adev: amdgpu_device pointer
*/
static int gmc_v10_0_gart_enable(struct amdgpu_device *adev)
{
int r;
bool value;
u32 tmp;
if (adev->gart.bo == 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;
r = gfxhub_v2_0_gart_enable(adev);
if (r)
return r;
r = mmhub_v2_0_gart_enable(adev);
if (r)
return r;
tmp = RREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL);
tmp |= HDP_MISC_CNTL__FLUSH_INVALIDATE_CACHE_MASK;
WREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL, tmp);
tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
/* Flush HDP after it is initialized */
adev->nbio.funcs->hdp_flush(adev, NULL);
value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ?
false : true;
gfxhub_v2_0_set_fault_enable_default(adev, value);
mmhub_v2_0_set_fault_enable_default(adev, value);
gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0);
gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0);
DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
(unsigned)(adev->gmc.gart_size >> 20),
(unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
adev->gart.ready = true;
return 0;
}
static int gmc_v10_0_hw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/* The sequence of these two function calls matters.*/
gmc_v10_0_init_golden_registers(adev);
r = gmc_v10_0_gart_enable(adev);
if (r)
return r;
return 0;
}
/**
* gmc_v10_0_gart_disable - gart disable
*
* @adev: amdgpu_device pointer
*
* This disables all VM page table.
*/
static void gmc_v10_0_gart_disable(struct amdgpu_device *adev)
{
gfxhub_v2_0_gart_disable(adev);
mmhub_v2_0_gart_disable(adev);
amdgpu_gart_table_vram_unpin(adev);
}
static int gmc_v10_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (amdgpu_sriov_vf(adev)) {
/* full access mode, so don't touch any GMC register */
DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
return 0;
}
amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
gmc_v10_0_gart_disable(adev);
return 0;
}
static int gmc_v10_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v10_0_hw_fini(adev);
return 0;
}
static int gmc_v10_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = gmc_v10_0_hw_init(adev);
if (r)
return r;
amdgpu_vmid_reset_all(adev);
return 0;
}
static bool gmc_v10_0_is_idle(void *handle)
{
/* MC is always ready in GMC v10.*/
return true;
}
static int gmc_v10_0_wait_for_idle(void *handle)
{
/* There is no need to wait for MC idle in GMC v10.*/
return 0;
}
static int gmc_v10_0_soft_reset(void *handle)
{
return 0;
}
static int gmc_v10_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = mmhub_v2_0_set_clockgating(adev, state);
if (r)
return r;
return athub_v2_0_set_clockgating(adev, state);
}
static void gmc_v10_0_get_clockgating_state(void *handle, u32 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
mmhub_v2_0_get_clockgating(adev, flags);
athub_v2_0_get_clockgating(adev, flags);
}
static int gmc_v10_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
const struct amd_ip_funcs gmc_v10_0_ip_funcs = {
.name = "gmc_v10_0",
.early_init = gmc_v10_0_early_init,
.late_init = gmc_v10_0_late_init,
.sw_init = gmc_v10_0_sw_init,
.sw_fini = gmc_v10_0_sw_fini,
.hw_init = gmc_v10_0_hw_init,
.hw_fini = gmc_v10_0_hw_fini,
.suspend = gmc_v10_0_suspend,
.resume = gmc_v10_0_resume,
.is_idle = gmc_v10_0_is_idle,
.wait_for_idle = gmc_v10_0_wait_for_idle,
.soft_reset = gmc_v10_0_soft_reset,
.set_clockgating_state = gmc_v10_0_set_clockgating_state,
.set_powergating_state = gmc_v10_0_set_powergating_state,
.get_clockgating_state = gmc_v10_0_get_clockgating_state,
};
const struct amdgpu_ip_block_version gmc_v10_0_ip_block =
{
.type = AMD_IP_BLOCK_TYPE_GMC,
.major = 10,
.minor = 0,
.rev = 0,
.funcs = &gmc_v10_0_ip_funcs,
};
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