diff options
| author | Eric Anholt <eric@anholt.net> | 2008-10-21 00:10:54 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2008-10-28 14:27:49 -0700 |
| commit | 0e867312323fa51af324228b98bff4f49a813481 (patch) | |
| tree | e2ebd033a8ecf9661d9c2936455ce2ff9ba5dccb /shared-core | |
| parent | e47ab7a5081e178bad385ce2e75b01474ea7aa4c (diff) | |
intel: Add dri_bufmgr_check_aperture support for bufmgr_gem.
This relies on a new kernel ioctl to get the available aperture size.
In order to provide reasonable performance from dri_bufmgr_check_aperture, we
now require that once a buffer has been used as the target of a relocation,
it gets no further relocations added to it. This cuts the cost of
check_aperture from 10% to 1% in the 3D driver with no code changes, but
slightly complicates our plans for the 2D driver.
Diffstat (limited to 'shared-core')
| -rw-r--r-- | shared-core/i915_drm.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/shared-core/i915_drm.h b/shared-core/i915_drm.h index 2801687c..9211b390 100644 --- a/shared-core/i915_drm.h +++ b/shared-core/i915_drm.h @@ -192,6 +192,7 @@ 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) @@ -227,6 +228,7 @@ 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) /* Asynchronous page flipping: */ @@ -716,4 +718,15 @@ 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_ */ |