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| author | Eric Anholt <eric@anholt.net> | 2008-10-22 21:40:13 -0700 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2008-11-03 10:56:49 +1000 |
| commit | 5a125c3c79167e78ba44efef03af7090ef28eeaf (patch) | |
| tree | b8c3a9e44ea44b7afc821c0422a7ea6360814f03 /include/drm | |
| parent | 4e270e9b8a9d246290f3901f1fb6c5efdb734ddf (diff) | |
| download | kernel_samsung_smdk4412-5a125c3c79167e78ba44efef03af7090ef28eeaf.zip kernel_samsung_smdk4412-5a125c3c79167e78ba44efef03af7090ef28eeaf.tar.gz kernel_samsung_smdk4412-5a125c3c79167e78ba44efef03af7090ef28eeaf.tar.bz2 | |
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 <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/i915_drm.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index eb4b350..152b34d 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_ */ |