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drm/amdgpu: fix UVD/VCE VM emulation 

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-06-10 17:20:11 +02:00 committed by Alex Deucher
parent b7a0776949
commit 4802ce1177
1 changed files with 15 additions and 3 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -564,21 +564,33 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
return r;
if (ring->funcs->parse_cs) {
struct amdgpu_bo_va_mapping *m;
struct amdgpu_bo *aobj = NULL;
void *kptr;
uint64_t offset;
uint8_t *kptr;
amdgpu_cs_find_mapping(parser, chunk_ib->va_start, &aobj);
m = amdgpu_cs_find_mapping(parser, chunk_ib->va_start,
&aobj);
if (!aobj) {
DRM_ERROR("IB va_start is invalid\n");
return -EINVAL;
}
if ((chunk_ib->va_start + chunk_ib->ib_bytes) >
(m->it.last + 1) * AMDGPU_GPU_PAGE_SIZE) {
DRM_ERROR("IB va_start+ib_bytes is invalid\n");
return -EINVAL;
}
/* the IB should be reserved at this point */
r = amdgpu_bo_kmap(aobj, &kptr);
r = amdgpu_bo_kmap(aobj, (void **)&kptr);
if (r) {
return r;
}
offset = ((uint64_t)m->it.start) * AMDGPU_GPU_PAGE_SIZE;
kptr += chunk_ib->va_start - offset;
r = amdgpu_ib_get(ring, NULL, chunk_ib->ib_bytes, ib);
if (r) {
DRM_ERROR("Failed to get ib !\n");