diff options
| author | Michel Dänzer <[email protected]> | 2014-08-26 18:06:49 +0900 |
|---|---|---|
| committer | Michel Dänzer <[email protected]> | 2014-09-02 15:24:07 +0900 |
| commit | 51131c423c213c291106c7756558ac84654c24b4 (patch) | |
| tree | 04fb197f19c1eb3ad281db5afdc89cba79f0d4bd /src/gallium/winsys/radeon/drm | |
| parent | 2d5d1f55983f645df97f0b44ab95235d30faa7bf (diff) | |
r600g,radeonsi: Inform the kernel if a BO will likely be accessed by the CPU
This allows the kernel to prevent such BOs from ever being stored in the
CPU inaccessible part of VRAM.
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium/winsys/radeon/drm')
| -rw-r--r-- | src/gallium/winsys/radeon/drm/radeon_drm_bo.c | 8 | ||||
| -rw-r--r-- | src/gallium/winsys/radeon/drm/radeon_winsys.h | 3 |
2 files changed, 9 insertions, 2 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c index 73f8d385d7b..03b9b1d075b 100644 --- a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c +++ b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c @@ -478,7 +478,11 @@ const struct pb_vtbl radeon_bo_vtbl = { }; #ifndef RADEON_GEM_GTT_WC -#define RADEON_GEM_GTT_WC (1 << 2) +#define RADEON_GEM_GTT_WC (1 << 2) +#endif +#ifndef RADEON_GTM_CPU_ACCESS +/* BO is expected to be accessed by the CPU */ +#define RADEON_GEM_CPU_ACCESS (1 << 3) #endif static struct pb_buffer *radeon_bomgr_create_bo(struct pb_manager *_mgr, @@ -505,6 +509,8 @@ static struct pb_buffer *radeon_bomgr_create_bo(struct pb_manager *_mgr, if (rdesc->flags & RADEON_FLAG_GTT_WC) args.flags |= RADEON_GEM_GTT_WC; + if (rdesc->flags & RADEON_FLAG_CPU_ACCESS) + args.flags |= RADEON_GEM_CPU_ACCESS; if (drmCommandWriteRead(rws->fd, DRM_RADEON_GEM_CREATE, &args, sizeof(args))) { diff --git a/src/gallium/winsys/radeon/drm/radeon_winsys.h b/src/gallium/winsys/radeon/drm/radeon_winsys.h index dbd58f1cd8d..69bf6eddebd 100644 --- a/src/gallium/winsys/radeon/drm/radeon_winsys.h +++ b/src/gallium/winsys/radeon/drm/radeon_winsys.h @@ -66,7 +66,8 @@ enum radeon_bo_domain { /* bitfield */ }; enum radeon_bo_flag { /* bitfield */ - RADEON_FLAG_GTT_WC = (1 << 0) + RADEON_FLAG_GTT_WC = (1 << 0), + RADEON_FLAG_CPU_ACCESS = (1 << 1), }; enum radeon_bo_usage { /* bitfield */ |