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svga: Avoid discard DMA uploads 

Newer versions of the device code will make discard DMA uploads
sub-optimal. Disable them for guest-backed aware code, where we previously
had them conditionally enabled.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3614>
This commit is contained in:
Thomas Hellstrom 2020-01-28 12:49:30 +01:00 committed by Marge Bot
parent 8afe12b212
commit 8830e9f0ca
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/svga/svga_resource_texture.c
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@ -531,7 +531,7 @@ svga_texture_transfer_map(struct pipe_context *pipe,
struct svga_transfer *st;
struct svga_winsys_surface *surf = tex->handle;
boolean use_direct_map = svga_have_gb_objects(svga) &&
!svga_have_gb_dma(svga);
(!svga_have_gb_dma(svga) || (usage & PIPE_TRANSFER_WRITE));
void *map = NULL;
int64_t begin = svga_get_time(svga);