diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-10-02 04:31:34 +0100 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-10-02 12:54:13 -0700 |
| commit | 0fb215ae3199b5be0c9a9474e5941f8d8998c11a (patch) | |
| tree | 72adbdad266bc0cec958f460100c898fd885a885 /shared-core | |
| parent | 12d9b7cc8550c1999e5c39a38b1b14e654f49065 (diff) | |
intel: Mark cached bo as purgeable
Set the DONTNEED flag on cached buffers so that the kernel is free to
discard those when under memory pressure.
[anholt: This takes firefox-talos-gfx time from ~62 seconds to ~65 seconds
on my GM965, but it seems like a hit worth taking for the improved
functionality from saving memory]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'shared-core')
| -rw-r--r-- | shared-core/i915_drm.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/shared-core/i915_drm.h b/shared-core/i915_drm.h index 2539966f..b2146000 100644 --- a/shared-core/i915_drm.h +++ b/shared-core/i915_drm.h @@ -206,6 +206,7 @@ typedef struct drm_i915_sarea { #define DRM_I915_GEM_GET_APERTURE 0x23 #define DRM_I915_GEM_MMAP_GTT 0x24 #define DRM_I915_GET_PIPE_FROM_CRTC_ID 0x25 +#define DRM_I915_GEM_MADVISE 0x26 #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) @@ -244,6 +245,7 @@ typedef struct drm_i915_sarea { #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) #define DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_PIPE_FROM_CRTC_ID, struct drm_i915_get_pipe_from_crtc_id) +#define DRM_IOCTL_I915_GEM_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise) /* Asynchronous page flipping: */ @@ -727,4 +729,18 @@ struct drm_i915_get_pipe_from_crtc_id { uint32_t pipe; }; +#define I915_MADV_WILLNEED 0 +#define I915_MADV_DONTNEED 1 + +struct drm_i915_gem_madvise { + /** Handle of the buffer to change the backing store advice. */ + uint32_t handle; + + /** Advice. */ + uint32_t madv; + + /** Whether or not the backing store still exists */ + uint32_t retained; +}; + #endif /* _I915_DRM_H_ */ |