On Wed, Aug 24, 2016 at 08:42:43PM +0100, Chris Wilson wrote:
> Now that we have working partial VMA and faulting support for all
> objects, including fence support, advertise to userspace that it can
> take advantage of unlimited GGTT mmaps.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_drv.c | 8 ++++++++
> include/uapi/drm/i915_drm.h | 1 +
> 2 files changed, 9 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index fc9273215286..5b2c56777b75 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -355,6 +355,14 @@ static int i915_getparam(struct drm_device *dev, void *data,
> case I915_PARAM_MIN_EU_IN_POOL:
> value = INTEL_INFO(dev)->min_eu_in_pool;
> break;
> + case I915_PARAM_MMAP_GTT_VERSION:
> + /* 0 - Objects have to be smaller than aperture,
> + * all simultaneous users have to fit within the
> + * available space within the aperture.
> + * 1 - Objects can any size, and X,Y or untiled
can _have_
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> + */
> + 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 5501fe83ed92..03725fe89859 100644
> --- a/include/uapi/drm/i915_drm.h
> +++ b/include/uapi/drm/i915_drm.h
> @@ -387,6 +387,7 @@ typedef struct drm_i915_irq_wait {
> #define I915_PARAM_HAS_EXEC_SOFTPIN 37
> #define I915_PARAM_HAS_POOLED_EU 38
> #define I915_PARAM_MIN_EU_IN_POOL 39
> +#define I915_PARAM_MMAP_GTT_VERSION 40
>
> typedef struct drm_i915_getparam {
> __s32 param;
> --
> 2.9.3
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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