This will let userland only try to use the new ring
when the appropriate kernel is present
v2: change the number to be consistent with upstream (Zhipeng)
Signed-off-by: Zhipeng Gong <zhipeng.gong@xxxxxxxxx>
Reviewed--by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> (for v1)
---
drivers/gpu/drm/i915/i915_dma.c | 3 +++
include/uapi/drm/i915_drm.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 8cbff30..f0786d6 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -92,6 +92,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
case I915_PARAM_HAS_VEBOX:
value = intel_ring_initialized(&dev_priv->ring[VECS]);
break;
+ case I915_PARAM_HAS_BSD2:
+ value = intel_ring_initialized(&dev_priv->ring[VCS2]);
+ break;
case I915_PARAM_HAS_RELAXED_FENCING:
value = 1;
break;
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index dc84561..6eed16b 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -346,6 +346,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_CMD_PARSER_VERSION 28
#define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
#define I915_PARAM_MMAP_VERSION 30
+#define I915_PARAM_HAS_BSD2 31
typedef struct drm_i915_getparam {
int param;
--
1.8.3.1
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