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drm/i915: Use the reloc.handle as an index into the execbuffer array

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Using copywinwin10 as an example that is dependent upon emitting a lot
of relocations (2 per operation), we see improvements of:

c2d/gm45: 618000.0/sec to 623000.0/sec.
i3-330m: 748000.0/sec to 789000.0/sec.

(measured relative to a baseline with neither optimisations applied).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson
2013-01-08 10:53:17 +00:00
committed by Daniel Vetter
parent ed5982e6ce
commit eef90ccb8a
3 changed files with 70 additions and 39 deletions
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8
include/uapi/drm/i915_drm.h
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@@ -309,6 +309,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_HAS_SECURE_BATCHES 23
#define I915_PARAM_HAS_PINNED_BATCHES 24
#define I915_PARAM_HAS_EXEC_NO_RELOC 25
#define I915_PARAM_HAS_EXEC_HANDLE_LUT 26
typedef struct drm_i915_getparam {
int param;
@@ -699,7 +700,12 @@ struct drm_i915_gem_execbuffer2 {
*/
#define I915_EXEC_NO_RELOC (1<<11)
#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_NO_RELOC<<1)
/** Use the reloc.handle as an index into the exec object array rather
* than as the per-file handle.
*/
#define I915_EXEC_HANDLE_LUT (1<<12)
#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_HANDLE_LUT<<1)
#define I915_EXEC_CONTEXT_ID_MASK (0xffffffff)
#define i915_execbuffer2_set_context_id(eb2, context) \