From 5a125c3c79167e78ba44efef03af7090ef28eeaf Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 22 Oct 2008 21:40:13 -0700 Subject: i915: Add GEM ioctl to get available aperture size. This will let userland know when to submit its batchbuffers, before they get too big to fit in the aperture. Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie --- include/drm/i915_drm.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/drm') diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index eb4b35031a5..152b34da927 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -159,6 +159,7 @@ typedef struct _drm_i915_sarea { #define DRM_I915_GEM_SW_FINISH 0x20 #define DRM_I915_GEM_SET_TILING 0x21 #define DRM_I915_GEM_GET_TILING 0x22 +#define DRM_I915_GEM_GET_APERTURE 0x23 #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) #define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH) @@ -190,6 +191,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GEM_SW_FINISH DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish) #define DRM_IOCTL_I915_GEM_SET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling) #define DRM_IOCTL_I915_GEM_GET_TILING DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling) +#define DRM_IOCTL_I915_GEM_GET_APERTURE DRM_IOR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture) /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. @@ -600,4 +602,15 @@ struct drm_i915_gem_get_tiling { uint32_t swizzle_mode; }; +struct drm_i915_gem_get_aperture { + /** Total size of the aperture used by i915_gem_execbuffer, in bytes */ + uint64_t aper_size; + + /** + * Available space in the aperture used by i915_gem_execbuffer, in + * bytes + */ + uint64_t aper_available_size; +}; + #endif /* _I915_DRM_H_ */ -- cgit v1.2.3-70-g09d2