add HAS_BSD check to i915_getparam for user space program
to query if BSD ring buffer is supported.
Signed-off-by: Zou Nan hai <nanhai....@intel.com>
---
drivers/gpu/drm/i915/i915_dma.c | 3 +++
include/drm/i915_drm.h | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 6577798..84ce956 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -744,6 +744,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
/* depends on GEM */
value = dev_priv->has_gem;
break;
+ case I915_PARAM_HAS_BSD:
+ value = HAS_BSD(dev);
+ break;
default:
DRM_DEBUG_DRIVER("Unknown parameter %d\n",
param->param);
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index e916870..7f0028e 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -275,6 +275,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_HAS_OVERLAY 7
#define I915_PARAM_HAS_PAGEFLIPPING 8
#define I915_PARAM_HAS_EXECBUF2 9
+#define I915_PARAM_HAS_BSD 10
typedef struct drm_i915_getparam {
int param;
--
1.7.1
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