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drm/radeon: remove duplicates check

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Completely unnecessary since the ww_mutex used to reserve a buffer
can detect double reservations from the same thread anyway.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2014-12-03 15:46:49 +01:00
committed by Alex Deucher
parent aa35071c59
commit 466be3386f
6 changed files with 16 additions and 34 deletions
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30
drivers/gpu/drm/radeon/radeon_cs.c
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@@ -77,8 +77,8 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
struct drm_device *ddev = p->rdev->ddev;
struct radeon_cs_chunk *chunk;
struct radeon_cs_buckets buckets;
unsigned i, j;
bool duplicate, need_mmap_lock = false;
unsigned i;
bool need_mmap_lock = false;
int r;
if (p->chunk_relocs_idx == -1) {
@@ -88,10 +88,6 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
p->dma_reloc_idx = 0;
/* FIXME: we assume that each relocs use 4 dwords */
p->nrelocs = chunk->length_dw / 4;
p->relocs_ptr = kcalloc(p->nrelocs, sizeof(void *), GFP_KERNEL);
if (p->relocs_ptr == NULL) {
return -ENOMEM;
}
p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_bo_list), GFP_KERNEL);
if (p->relocs == NULL) {
return -ENOMEM;
@@ -104,28 +100,13 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
struct drm_gem_object *gobj;
unsigned priority;
duplicate = false;
r = (struct drm_radeon_cs_reloc *)&chunk->kdata[i*4];
for (j = 0; j < i; j++) {
struct drm_radeon_cs_reloc *other;
other = (void *)&chunk->kdata[j*4];
if (r->handle == other->handle) {
p->relocs_ptr[i] = &p->relocs[j];
duplicate = true;
break;
}
}
if (duplicate) {
continue;
}
gobj = drm_gem_object_lookup(ddev, p->filp, r->handle);
if (gobj == NULL) {
DRM_ERROR("gem object lookup failed 0x%x\n",
r->handle);
return -ENOENT;
}
p->relocs_ptr[i] = &p->relocs[i];
p->relocs[i].robj = gem_to_radeon_bo(gobj);
/* The userspace buffer priorities are from 0 to 15. A higher
@@ -448,7 +429,6 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error, bo
}
kfree(parser->track);
kfree(parser->relocs);
kfree(parser->relocs_ptr);
drm_free_large(parser->vm_bos);
for (i = 0; i < parser->nchunks; i++)
drm_free_large(parser->chunks[i].kdata);
@@ -523,10 +503,6 @@ static int radeon_bo_vm_update_pte(struct radeon_cs_parser *p,
for (i = 0; i < p->nrelocs; i++) {
struct radeon_bo *bo;
/* ignore duplicates */
if (p->relocs_ptr[i] != &p->relocs[i])
continue;
bo = p->relocs[i].robj;
bo_va = radeon_vm_bo_find(vm, bo);
if (bo_va == NULL) {
@@ -871,6 +847,6 @@ int radeon_cs_packet_next_reloc(struct radeon_cs_parser *p,
(u64)relocs_chunk->kdata[idx + 3] << 32;
(*cs_reloc)->gpu_offset |= relocs_chunk->kdata[idx + 0];
} else
*cs_reloc = p->relocs_ptr[(idx / 4)];
*cs_reloc = &p->relocs[(idx / 4)];
return 0;
}