Commit ad864d24 authored by Andrey Grodzovsky's avatar Andrey Grodzovsky Committed by Alex Deucher

drm/amdgpu: Refactor amdgpu_cs_ib_vm_chunk and amdgpu_cs_ib_fill.

This enables old fence waiting before reservation lock is aquired
which in turn is part of a bigger solution to deadlock happening
when gpu reset with VRAM recovery accures during intensive rendering.
Signed-off-by: default avatarAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f15507a1
......@@ -845,15 +845,60 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
struct amdgpu_vm *vm = &fpriv->vm;
struct amdgpu_ring *ring = p->job->ring;
int i, r;
int i, j, r;
for (i = 0, j = 0; i < p->nchunks && j < p->job->num_ibs; i++) {
struct amdgpu_cs_chunk *chunk;
struct amdgpu_ib *ib;
struct drm_amdgpu_cs_chunk_ib *chunk_ib;
chunk = &p->chunks[i];
ib = &p->job->ibs[j];
chunk_ib = (struct drm_amdgpu_cs_chunk_ib *)chunk->kdata;
if (chunk->chunk_id != AMDGPU_CHUNK_ID_IB)
continue;
if (p->job->ring->funcs->parse_cs) {
struct amdgpu_bo_va_mapping *m;
struct amdgpu_bo *aobj = NULL;
uint64_t offset;
uint8_t *kptr;
r = amdgpu_cs_find_mapping(p, chunk_ib->va_start,
&aobj, &m);
if (r) {
DRM_ERROR("IB va_start is invalid\n");
return r;
}
if ((chunk_ib->va_start + chunk_ib->ib_bytes) >
(m->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, (void **)&kptr);
if (r) {
return r;
}
offset = m->start * AMDGPU_GPU_PAGE_SIZE;
kptr += chunk_ib->va_start - offset;
memcpy(ib->ptr, kptr, chunk_ib->ib_bytes);
amdgpu_bo_kunmap(aobj);
/* Only for UVD/VCE VM emulation */
if (ring->funcs->parse_cs) {
for (i = 0; i < p->job->num_ibs; i++) {
r = amdgpu_ring_parse_cs(ring, p, i);
r = amdgpu_ring_parse_cs(ring, p, j);
if (r)
return r;
}
j++;
}
if (p->job->vm) {
......@@ -919,54 +964,18 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
parser->job->ring = ring;
if (ring->funcs->parse_cs) {
struct amdgpu_bo_va_mapping *m;
struct amdgpu_bo *aobj = NULL;
uint64_t offset;
uint8_t *kptr;
r = amdgpu_cs_find_mapping(parser, chunk_ib->va_start,
&aobj, &m);
if (r) {
DRM_ERROR("IB va_start is invalid\n");
return r;
}
if ((chunk_ib->va_start + chunk_ib->ib_bytes) >
(m->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, (void **)&kptr);
if (r) {
return r;
}
offset = m->start * AMDGPU_GPU_PAGE_SIZE;
kptr += chunk_ib->va_start - offset;
r = amdgpu_ib_get(adev, vm, chunk_ib->ib_bytes, ib);
if (r) {
DRM_ERROR("Failed to get ib !\n");
return r;
}
memcpy(ib->ptr, kptr, chunk_ib->ib_bytes);
amdgpu_bo_kunmap(aobj);
} else {
r = amdgpu_ib_get(adev, vm, 0, ib);
r = amdgpu_ib_get(adev, vm,
ring->funcs->parse_cs ? chunk_ib->ib_bytes : 0,
ib);
if (r) {
DRM_ERROR("Failed to get ib !\n");
return r;
}
}
ib->gpu_addr = chunk_ib->va_start;
ib->length_dw = chunk_ib->ib_bytes / 4;
ib->flags = chunk_ib->flags;
j++;
}
......@@ -1212,6 +1221,10 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
goto out;
}
r = amdgpu_cs_ib_fill(adev, &parser);
if (r)
goto out;
r = amdgpu_cs_parser_bos(&parser, data);
if (r) {
if (r == -ENOMEM)
......@@ -1222,9 +1235,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
}
reserved_buffers = true;
r = amdgpu_cs_ib_fill(adev, &parser);
if (r)
goto out;
r = amdgpu_cs_dependencies(adev, &parser);
if (r) {
......
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