On 06/16/2015 03:41 PM, Abdiel Janulgue wrote:
> This will let userspace know whether Resource Streamer is supported
> in the kernel.
>
> v2: Update I915_PARAM_HAS_RESOURCE_STREAMER so it's after
> I915_PARAM_HAS_GPU_RESET.
> v3: Only advertise RS support for hardware that supports it.
Ping. Any status on this one?
>
> Suggested-by: Kenneth Graunke <kenneth@xxxxxxxxxxxxx>
> Cc: Kenneth Graunke <kenneth@xxxxxxxxxxxxx>
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
> ---
> 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 88795d2..4f55f51 100644
> --- a/drivers/gpu/drm/i915/i915_dma.c
> +++ b/drivers/gpu/drm/i915/i915_dma.c
> @@ -168,6 +168,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
> i915.reset &&
> intel_has_gpu_reset(dev);
> break;
> + case I915_PARAM_HAS_RESOURCE_STREAMER:
> + value = IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8;
> + 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 f88cc1c..51137bd 100644
> --- a/include/uapi/drm/i915_drm.h
> +++ b/include/uapi/drm/i915_drm.h
> @@ -355,6 +355,7 @@ typedef struct drm_i915_irq_wait {
> #define I915_PARAM_SUBSLICE_TOTAL 33
> #define I915_PARAM_EU_TOTAL 34
> #define I915_PARAM_HAS_GPU_RESET 35
> +#define I915_PARAM_HAS_RESOURCE_STREAMER 36
>
> typedef struct drm_i915_getparam {
> int param;
>
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