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author | Christian König <christian.koenig@amd.com> | 2015-12-21 19:31:35 (GMT) |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2016-02-10 19:16:45 (GMT) |
commit | 36409d122cb84fa8f25a42b95a32c6090790e571 (patch) | |
tree | b1d19edfad8b25d539d79fd9582dab10729e6004 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
parent | f69f90a113f283b33b7b750204d708711a42b396 (diff) | |
download | linux-36409d122cb84fa8f25a42b95a32c6090790e571.tar.xz |
drm/amdgpu: cleanup amdgpu_cs_list_validate
No need to actually check the current placement. Just use the allowed domains
when the threshold is reached.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 66 |
1 files changed, 31 insertions, 35 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 2f80da0..c63efd7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -342,48 +342,44 @@ int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p, struct amdgpu_fpriv *fpriv = p->filp->driver_priv; struct amdgpu_vm *vm = &fpriv->vm; struct amdgpu_bo_list_entry *lobj; - struct amdgpu_bo *bo; u64 initial_bytes_moved; int r; list_for_each_entry(lobj, validated, tv.head) { - bo = lobj->robj; - if (!bo->pin_count) { - u32 domain = lobj->prefered_domains; - u32 current_domain = - amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type); - - /* Check if this buffer will be moved and don't move it - * if we have moved too many buffers for this IB already. - * - * Note that this allows moving at least one buffer of - * any size, because it doesn't take the current "bo" - * into account. We don't want to disallow buffer moves - * completely. - */ - if ((lobj->allowed_domains & current_domain) != 0 && - (domain & current_domain) == 0 && /* will be moved */ - p->bytes_moved > p->bytes_moved_threshold) { - /* don't move it */ - domain = current_domain; - } + struct amdgpu_bo *bo = lobj->robj; + uint32_t domain; - retry: - amdgpu_ttm_placement_from_domain(bo, domain); - initial_bytes_moved = atomic64_read(&bo->adev->num_bytes_moved); - r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); - p->bytes_moved += atomic64_read(&bo->adev->num_bytes_moved) - - initial_bytes_moved; - - if (unlikely(r)) { - if (r != -ERESTARTSYS && domain != lobj->allowed_domains) { - domain = lobj->allowed_domains; - goto retry; - } - return r; + lobj->bo_va = amdgpu_vm_bo_find(vm, bo); + if (bo->pin_count) + continue; + + /* Avoid moving this one if we have moved too many buffers + * for this IB already. + * + * Note that this allows moving at least one buffer of + * any size, because it doesn't take the current "bo" + * into account. We don't want to disallow buffer moves + * completely. + */ + if (p->bytes_moved <= p->bytes_moved_threshold) + domain = lobj->prefered_domains; + else + domain = lobj->allowed_domains; + + retry: + amdgpu_ttm_placement_from_domain(bo, domain); + initial_bytes_moved = atomic64_read(&bo->adev->num_bytes_moved); + r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); + p->bytes_moved += atomic64_read(&bo->adev->num_bytes_moved) - + initial_bytes_moved; + + if (unlikely(r)) { + if (r != -ERESTARTSYS && domain != lobj->allowed_domains) { + domain = lobj->allowed_domains; + goto retry; } + return r; } - lobj->bo_va = amdgpu_vm_bo_find(vm, bo); } return 0; } |