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authorDave Airlie <airlied@redhat.com>2007-11-01 10:34:11 +1100
committerDave Airlie <airlied@redhat.com>2007-11-01 10:34:53 +1100
commit61cbcb5dbe487c6d4eba04794cbaa0279ab807b0 (patch)
treeb1a438cf3287ea07f5ff4002962bf8f5bc71f7f5 /shared-core
parent6b0b2546c29858866ae1986b3b7254551245967e (diff)
drm/ttm: add support for cached un-snooped mappings.
This mapping allows cached objects to be mapped in/out of the TT space with the appropriate flushing calls. It should put back the old CACHED functionality for snooped mappings
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/drm.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/shared-core/drm.h b/shared-core/drm.h
index 3a102735..4059a6fb 100644
--- a/shared-core/drm.h
+++ b/shared-core/drm.h
@@ -700,10 +700,14 @@ struct drm_fence_arg {
*/
#define DRM_BO_FLAG_NO_MOVE (1ULL << 8)
-/* Mask: Make sure the buffer is in cached memory when mapped for reading.
+/* Mask: Make sure the buffer is in cached memory when mapped
* Flags: Acknowledge.
+ * Buffers allocated with this flag should not be used for suballocators
+ * This type may have issues on CPUs with over-aggressive caching
+ * http://marc.info/?l=linux-kernel&m=102376926732464&w=2
*/
-#define DRM_BO_FLAG_READ_CACHED (1ULL << 19)
+#define DRM_BO_FLAG_CACHED_MAPPED (1ULL << 19)
+
/* Mask: Force DRM_BO_FLAG_CACHED flag strictly also if it is set.
* Flags: Acknowledge.
@@ -738,7 +742,7 @@ struct drm_fence_arg {
/* Memory flag mask */
#define DRM_BO_MASK_MEM 0x00000000FF000000ULL
-#define DRM_BO_MASK_MEMTYPE 0x00000000FF0000A0ULL
+#define DRM_BO_MASK_MEMTYPE 0x00000000FF0800A0ULL
/* Driver-private flags */
#define DRM_BO_MASK_DRIVER 0xFFFF000000000000ULL