diff options
| author | Chris Wilson | 2010-12-08 11:43:06 +0100 |
|---|---|---|
| committer | Chris Wilson | 2010-12-09 20:46:22 +0100 |
| commit | b8f7ab1788f23d79084f051bb9ae3cb02b55bff3 (patch) | |
| tree | 2050906891ce977e93ac36236ed6ccbbdd00380c /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
| parent | drm/i915: Eliminate drm_gem_object_lookup during relocation (diff) | |
| download | kernel-qcow2-linux-b8f7ab1788f23d79084f051bb9ae3cb02b55bff3.tar.gz kernel-qcow2-linux-b8f7ab1788f23d79084f051bb9ae3cb02b55bff3.tar.xz kernel-qcow2-linux-b8f7ab1788f23d79084f051bb9ae3cb02b55bff3.zip | |
drm/i915: Mark the user reloc error paths as unlikely
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 3305ae528de4..fda0dc858a1f 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -301,14 +301,14 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, /* The target buffer should have appeared before us in the * exec_object list, so it should have a GTT space bound by now. */ - if (target_offset == 0) { + if (unlikely(target_offset == 0)) { DRM_ERROR("No GTT space found for object %d\n", reloc->target_handle); return ret; } /* Validate that the target is in a valid r/w GPU domain */ - if (reloc->write_domain & (reloc->write_domain - 1)) { + if (unlikely(reloc->write_domain & (reloc->write_domain - 1))) { DRM_ERROR("reloc with multiple write domains: " "obj %p target %d offset %d " "read %08x write %08x", @@ -318,8 +318,7 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, reloc->write_domain); return ret; } - if (reloc->write_domain & I915_GEM_DOMAIN_CPU || - reloc->read_domains & I915_GEM_DOMAIN_CPU) { + if (unlikely((reloc->write_domain | reloc->read_domains) & I915_GEM_DOMAIN_CPU)) { DRM_ERROR("reloc with read/write CPU domains: " "obj %p target %d offset %d " "read %08x write %08x", @@ -329,8 +328,8 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, reloc->write_domain); return ret; } - if (reloc->write_domain && target_obj->pending_write_domain && - reloc->write_domain != target_obj->pending_write_domain) { + if (unlikely(reloc->write_domain && target_obj->pending_write_domain && + reloc->write_domain != target_obj->pending_write_domain)) { DRM_ERROR("Write domain conflict: " "obj %p target %d offset %d " "new %08x old %08x\n", @@ -351,7 +350,7 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, return 0; /* Check that the relocation address is valid... */ - if (reloc->offset > obj->base.size - 4) { + if (unlikely(reloc->offset > obj->base.size - 4)) { DRM_ERROR("Relocation beyond object bounds: " "obj %p target %d offset %d size %d.\n", obj, reloc->target_handle, @@ -359,7 +358,7 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, (int) obj->base.size); return ret; } - if (reloc->offset & 3) { + if (unlikely(reloc->offset & 3)) { DRM_ERROR("Relocation not 4-byte aligned: " "obj %p target %d offset %d.\n", obj, reloc->target_handle, @@ -368,7 +367,7 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, } /* and points to somewhere within the target object. */ - if (reloc->delta >= target_obj->size) { + if (unlikely(reloc->delta >= target_obj->size)) { DRM_ERROR("Relocation beyond target object bounds: " "obj %p target %d delta %d size %d.\n", obj, reloc->target_handle, |