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drm/amdgpu/vcn: fix allocation size in enc ring test 

We need to allocate a large enough buffer for the
session info, otherwise the IB test can overwrite
other memory.

- Session info is 128K according to mesa
- Use the same session info for create and destroy

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=204241
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2019-10-15 18:09:41 -04:00
parent 5d230bc91f
commit c81fffc2c9
1 changed files with 23 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
View File

@ -569,13 +569,14 @@ int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
}
static int amdgpu_vcn_enc_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
struct dma_fence **fence)
struct amdgpu_bo *bo,
struct dma_fence **fence)
{
const unsigned ib_size_dw = 16;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
struct dma_fence *f = NULL;
uint64_t dummy;
uint64_t addr;
int i, r;
r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
@ -583,14 +584,14 @@ static int amdgpu_vcn_enc_get_create_msg(struct amdgpu_ring *ring, uint32_t hand
return r;
ib = &job->ibs[0];
dummy = ib->gpu_addr + 1024;
addr = amdgpu_bo_gpu_offset(bo);
ib->length_dw = 0;
ib->ptr[ib->length_dw++] = 0x00000018;
ib->ptr[ib->length_dw++] = 0x00000001; /* session info */
ib->ptr[ib->length_dw++] = handle;
ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
ib->ptr[ib->length_dw++] = dummy;
ib->ptr[ib->length_dw++] = upper_32_bits(addr);
ib->ptr[ib->length_dw++] = addr;
ib->ptr[ib->length_dw++] = 0x0000000b;
ib->ptr[ib->length_dw++] = 0x00000014;
@ -621,13 +622,14 @@ err:
}
static int amdgpu_vcn_enc_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
struct dma_fence **fence)
struct amdgpu_bo *bo,
struct dma_fence **fence)
{
const unsigned ib_size_dw = 16;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
struct dma_fence *f = NULL;
uint64_t dummy;
uint64_t addr;
int i, r;
r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4, &job);
@ -635,14 +637,14 @@ static int amdgpu_vcn_enc_get_destroy_msg(struct amdgpu_ring *ring, uint32_t han
return r;
ib = &job->ibs[0];
dummy = ib->gpu_addr + 1024;
addr = amdgpu_bo_gpu_offset(bo);
ib->length_dw = 0;
ib->ptr[ib->length_dw++] = 0x00000018;
ib->ptr[ib->length_dw++] = 0x00000001;
ib->ptr[ib->length_dw++] = handle;
ib->ptr[ib->length_dw++] = upper_32_bits(dummy);
ib->ptr[ib->length_dw++] = dummy;
ib->ptr[ib->length_dw++] = upper_32_bits(addr);
ib->ptr[ib->length_dw++] = addr;
ib->ptr[ib->length_dw++] = 0x0000000b;
ib->ptr[ib->length_dw++] = 0x00000014;
@ -675,13 +677,20 @@ err:
int amdgpu_vcn_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
{
struct dma_fence *fence = NULL;
struct amdgpu_bo *bo = NULL;
long r;
r = amdgpu_vcn_enc_get_create_msg(ring, 1, NULL);
r = amdgpu_bo_create_reserved(ring->adev, 128 * 1024, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
&bo, NULL, NULL);
if (r)
return r;
r = amdgpu_vcn_enc_get_create_msg(ring, 1, bo, NULL);
if (r)
goto error;
r = amdgpu_vcn_enc_get_destroy_msg(ring, 1, &fence);
r = amdgpu_vcn_enc_get_destroy_msg(ring, 1, bo, &fence);
if (r)
goto error;
@ -693,6 +702,8 @@ int amdgpu_vcn_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout)
error:
dma_fence_put(fence);
amdgpu_bo_unreserve(bo);
amdgpu_bo_unref(&bo);
return r;
}