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drm/amdgpu: implement gmc_v7_0_emit_flush_gpu_tlb 

Unify tlb flushing for gmc v7.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-01-12 17:08:22 +01:00 committed by Alex Deucher
parent 4fef88bd00
commit d9a701ccd6
4 changed files with 26 additions and 35 deletions
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2
drivers/gpu/drm/amd/amdgpu/cik.h
View File

@ -24,6 +24,8 @@
#ifndef __CIK_H__
#define __CIK_H__
#define CIK_FLUSH_GPU_TLB_NUM_WREG 2
void cik_srbm_select(struct amdgpu_device *adev,
u32 me, u32 pipe, u32 queue, u32 vmid);
int cik_set_ip_blocks(struct amdgpu_device *adev);

15
drivers/gpu/drm/amd/amdgpu/cik_sdma.c
View File

@ -886,18 +886,7 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
if (vmid < 8) {
amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid));
} else {
amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8));
}
amdgpu_ring_write(ring, pd_addr >> 12);
/* flush TLB */
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
amdgpu_ring_write(ring, 1 << vmid);
amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pasid, pd_addr);
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
@ -1290,7 +1279,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
6 + /* cik_sdma_ring_emit_hdp_flush */
3 + /* cik_sdma_ring_emit_hdp_invalidate */
6 + /* cik_sdma_ring_emit_pipeline_sync */
12 + /* cik_sdma_ring_emit_vm_flush */
CIK_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* cik_sdma_ring_emit_vm_flush */
9 + 9 + 9, /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */
.emit_ib_size = 7 + 4, /* cik_sdma_ring_emit_ib */
.emit_ib = cik_sdma_ring_emit_ib,

25
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
View File

@ -3244,26 +3244,7 @@ static void gfx_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
{
int usepfp = (ring->funcs->type == AMDGPU_RING_TYPE_GFX);
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
WRITE_DATA_DST_SEL(0)));
if (vmid < 8) {
amdgpu_ring_write(ring,
(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid));
} else {
amdgpu_ring_write(ring,
(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8));
}
amdgpu_ring_write(ring, 0);
amdgpu_ring_write(ring, pd_addr >> 12);
/* bits 0-15 are the VM contexts0-15 */
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
WRITE_DATA_DST_SEL(0)));
amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
amdgpu_ring_write(ring, 0);
amdgpu_ring_write(ring, 1 << vmid);
amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pasid, pd_addr);
/* wait for the invalidate to complete */
amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
@ -5132,7 +5113,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = {
5 + /* gfx_v7_0_ring_emit_hdp_invalidate */
12 + 12 + 12 + /* gfx_v7_0_ring_emit_fence_gfx x3 for user fence, vm fence */
7 + 4 + /* gfx_v7_0_ring_emit_pipeline_sync */
17 + 6 + /* gfx_v7_0_ring_emit_vm_flush */
CIK_FLUSH_GPU_TLB_NUM_WREG * 5 + 7 + 6 + /* gfx_v7_0_ring_emit_vm_flush */
3 + 4, /* gfx_v7_ring_emit_cntxcntl including vgt flush*/
.emit_ib_size = 4, /* gfx_v7_0_ring_emit_ib_gfx */
.emit_ib = gfx_v7_0_ring_emit_ib_gfx,
@ -5163,7 +5144,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
7 + /* gfx_v7_0_ring_emit_hdp_flush */
5 + /* gfx_v7_0_ring_emit_hdp_invalidate */
7 + /* gfx_v7_0_ring_emit_pipeline_sync */
17 + /* gfx_v7_0_ring_emit_vm_flush */
CIK_FLUSH_GPU_TLB_NUM_WREG * 5 + 7 + /* gfx_v7_0_ring_emit_vm_flush */
7 + 7 + 7, /* gfx_v7_0_ring_emit_fence_compute x3 for user fence, vm fence */
.emit_ib_size = 4, /* gfx_v7_0_ring_emit_ib_compute */
.emit_ib = gfx_v7_0_ring_emit_ib_compute,

19
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
View File

@ -435,6 +435,24 @@ static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid)
WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
}
static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, unsigned pasid,
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;
}
/**
* gmc_v7_0_set_pte_pde - update the page tables using MMIO
*
@ -1305,6 +1323,7 @@ static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
.emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
.set_pte_pde = gmc_v7_0_set_pte_pde,
.set_prt = gmc_v7_0_set_prt,
.get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,