diff options
| -rw-r--r-- | shared-core/drm.h | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/shared-core/drm.h b/shared-core/drm.h index 8ac5a31e..095823b7 100644 --- a/shared-core/drm.h +++ b/shared-core/drm.h @@ -696,21 +696,28 @@ typedef struct drm_ttm_arg { * 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 /* Always keep a system memory shadow to a vram buffer */ #define DRM_BO_FLAG_SHADOW_VRAM 0x00000020 -/* When mapped for reading, make sure the buffer is cached even - if it means moving the buffer to system memory */ +/* The buffer is shareable with other processes */ #define DRM_BO_FLAG_SHAREABLE 0x00000040 -/* When there is a choice between VRAM and TT, prefer VRAM. - The default behaviour is to prefer TT. */ +/* The buffer is currently cached */ #define DRM_BO_FLAG_CACHED 0x00000080 -/* The buffer is shareable with other processes */ - +/* 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 -/* The buffer is currently cached */ +/* When there is a choice between VRAM and TT, prefer VRAM. + The default behaviour is to prefer TT. */ #define DRM_BO_FLAG_PREFER_VRAM 0x00040000 /* Bind this buffer cached if the hardware supports it. */ #define DRM_BO_FLAG_BIND_CACHED 0x0002000 |