This will let userspace know whether Resource Streamer is supported
in the kernel.

Suggested-by: Kenneth Graunke <kenn...@whitecape.org>
Cc: Kenneth Graunke <kenn...@whitecape.org>
Signed-off-by: Abdiel Janulgue <abdiel.janul...@linux.intel.com>
---
 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 68e0c85..10d4ead 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -163,6 +163,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
                if (!value)
                        return -ENODEV;
                break;
+       case I915_PARAM_HAS_RESOURCE_STREAMER:
+               value = 1;
+               break;
        default:
                DRM_DEBUG("Unknown parameter %d\n", param->param);
                return -EINVAL;
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 551b673..40ab1c8 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -350,6 +350,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_REVISION              32
 #define I915_PARAM_SUBSLICE_TOTAL       33
 #define I915_PARAM_EU_TOTAL             34
+#define I915_PARAM_HAS_RESOURCE_STREAMER 35
 
 typedef struct drm_i915_getparam {
        int param;
-- 
1.9.1

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