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drm/i915: add GETPARAM request for page flipping 

Add a GETPARAM request for checking if page flipping is supported.
Useful for the 2D driver to enable the flipping path.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes 2009-11-19 10:49:07 -08:00 committed by Eric Anholt
parent 7bd4d7be5c
commit e9560f7cb2
2 changed files with 4 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_dma.c
View File

@ -810,6 +810,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
case I915_PARAM_HAS_OVERLAY:
value = dev_priv->overlay ? 1 : 0;
break;
case I915_PARAM_HAS_PAGEFLIPPING:
value = 1;
break;
default:
DRM_DEBUG_DRIVER("Unknown parameter %d\n",
param->param);

1
include/drm/i915_drm.h
View File

@ -271,6 +271,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_HAS_GEM 5
#define I915_PARAM_NUM_FENCES_AVAIL 6
#define I915_PARAM_HAS_OVERLAY 7
#define I915_PARAM_HAS_PAGEFLIPPING 8
typedef struct drm_i915_getparam {
int param;