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Add a new buffer flag.

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Fix up some comments.
This commit is contained in:
Thomas Hellstrom 2006-09-29 11:46:45 +02:00
parent 3802f9adbf
commit ae96e26419
1 changed files with 16 additions and 9 deletions
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25
shared-core/drm.h
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@ -696,21 +696,28 @@ typedef struct drm_ttm_arg {
* Status flags. Can be read to determine the actual state of a buffer. * Status flags. Can be read to determine the actual state of a buffer.
*/ */
/* Pinned buffer. */ /*
* Cannot evict this buffer. Not even with force. This type of buffer should
* only be available for root, and must be manually removed before buffer
* manager shutdown or swapout.
*/
#define DRM_BO_FLAG_NO_EVICT 0x00000010 #define DRM_BO_FLAG_NO_EVICT 0x00000010
/* Always keep a system memory shadow to a vram buffer */ /* Always keep a system memory shadow to a vram buffer */
#define DRM_BO_FLAG_SHADOW_VRAM 0x00000020 #define DRM_BO_FLAG_SHADOW_VRAM 0x00000020
/* When mapped for reading, make sure the buffer is cached even /* The buffer is shareable with other processes */
if it means moving the buffer to system memory */
#define DRM_BO_FLAG_SHAREABLE 0x00000040 #define DRM_BO_FLAG_SHAREABLE 0x00000040
/* The buffer is currently cached */
#define DRM_BO_FLAG_CACHED 0x00000080
/* Make sure that every time this buffer is validated, it ends up on the same
* location. The buffer will also not be evicted when claiming space for
* other buffers. Basically a pinned buffer but it may be thrown out as
* part of buffer manager shutdown or swapout. Not supported yet.*/
#define DRM_BO_FLAG_NO_MOVE 0x00000100
/* Make sure the buffer is in cached memory when mapped for reading */
#define DRM_BO_FLAG_READ_CACHED 0x00080000
/* When there is a choice between VRAM and TT, prefer VRAM. /* When there is a choice between VRAM and TT, prefer VRAM.
The default behaviour is to prefer TT. */ The default behaviour is to prefer TT. */
#define DRM_BO_FLAG_CACHED 0x00000080
/* The buffer is shareable with other processes */
#define DRM_BO_FLAG_READ_CACHED 0x00080000
/* The buffer is currently cached */
#define DRM_BO_FLAG_PREFER_VRAM 0x00040000 #define DRM_BO_FLAG_PREFER_VRAM 0x00040000
/* Bind this buffer cached if the hardware supports it. */ /* Bind this buffer cached if the hardware supports it. */
#define DRM_BO_FLAG_BIND_CACHED 0x0002000 #define DRM_BO_FLAG_BIND_CACHED 0x0002000