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drm/nouveau/ttm: tidy up creation of temporary buffer move vmas 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-11-22 10:35:25 +10:00
parent ab9b18a6a1
commit 3c57d85d7d
1 changed files with 21 additions and 20 deletions
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41
drivers/gpu/drm/nouveau/nouveau_bo.c
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@ -936,19 +936,28 @@ nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
}
static int
nouveau_vma_getmap(struct nouveau_channel *chan, struct nouveau_bo *nvbo,
struct ttm_mem_reg *mem, struct nouveau_vma *vma)
nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo,
struct ttm_mem_reg *mem)
{
struct nouveau_mem *node = mem->mm_node;
struct nouveau_mem *old_node = bo->mem.mm_node;
struct nouveau_mem *new_node = mem->mm_node;
u64 size = (u64)mem->num_pages << PAGE_SHIFT;
int ret;
ret = nouveau_vm_get(nv_client(chan->cli)->vm, mem->num_pages <<
PAGE_SHIFT, node->page_shift,
NV_MEM_ACCESS_RW, vma);
ret = nouveau_vm_get(nv_client(drm)->vm, size, old_node->page_shift,
NV_MEM_ACCESS_RW, &old_node->vma[0]);
if (ret)
return ret;
nouveau_vm_map(vma, node);
ret = nouveau_vm_get(nv_client(drm)->vm, size, new_node->page_shift,
NV_MEM_ACCESS_RW, &old_node->vma[1]);
if (ret) {
nouveau_vm_put(&old_node->vma[0]);
return ret;
}
nouveau_vm_map(&old_node->vma[0], old_node);
nouveau_vm_map(&old_node->vma[1], new_node);
return 0;
}
@ -958,35 +967,27 @@ nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
{
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_channel *chan = drm->ttm.chan;
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct ttm_mem_reg *old_mem = &bo->mem;
int ret;
mutex_lock_nested(&chan->cli->mutex, SINGLE_DEPTH_NESTING);
/* create temporary vmas for the transfer and attach them to the
* old nouveau_mem node, these will get cleaned up after ttm has
* destroyed the ttm_mem_reg
*/
if (nv_device(drm->device)->card_type >= NV_50) {
struct nouveau_mem *node = old_mem->mm_node;
ret = nouveau_vma_getmap(chan, nvbo, old_mem, &node->vma[0]);
ret = nouveau_bo_move_prep(drm, bo, new_mem);
if (ret)
goto out;
ret = nouveau_vma_getmap(chan, nvbo, new_mem, &node->vma[1]);
if (ret)
goto out;
return ret;
}
mutex_lock_nested(&chan->cli->mutex, SINGLE_DEPTH_NESTING);
ret = drm->ttm.move(chan, bo, &bo->mem, new_mem);
if (ret == 0) {
struct nouveau_bo *nvbo = nouveau_bo(bo);
ret = nouveau_bo_move_accel_cleanup(chan, nvbo, evict,
no_wait_gpu, new_mem);
}
out:
mutex_unlock(&chan->cli->mutex);
return ret;
}