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authorEric Anholt <eric@anholt.net>2008-10-22 21:40:13 -0700
committerDave Airlie <airlied@redhat.com>2008-11-03 10:56:49 +1000
commit5a125c3c79167e78ba44efef03af7090ef28eeaf (patch)
treeb8c3a9e44ea44b7afc821c0422a7ea6360814f03 /include/drm
parent4e270e9b8a9d246290f3901f1fb6c5efdb734ddf (diff)
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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.h13
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_ */