GK20A does not have dedicated VRAM, therefore allocating in VRAM can be
sub-optimal and sometimes even harmful. Set its VRAM domain to
NOUVEAU_BO_GART so all objects are allocated in system memory.
Signed-off-by: Alexandre Courbot <acour...@nvidia.com>
---
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 506165d179de..b3f462ade11c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -617,6 +617,16 @@ nvc0_screen_create(struct nouveau_device *dev)
return NULL;
pscreen = &screen->base.base;
+ /* Recognize chipsets with no VRAM */
+ switch (dev->chipset) {
+ /* GK20A */
+ case 0xea:
+ screen->base.vram_domain = NOUVEAU_BO_GART;
+ break;
+ default:
+ break;
+ }
+
ret = nouveau_screen_init(&screen->base, dev);
if (ret) {
nvc0_screen_destroy(pscreen);
@@ -633,6 +643,11 @@ nvc0_screen_create(struct nouveau_device *dev)
screen->base.sysmem_bindings |=
PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_INDEX_BUFFER;
+ if (screen->base.vram_domain & NOUVEAU_BO_GART) {
+ screen->base.sysmem_bindings |= screen->base.vidmem_bindings;
+ screen->base.vidmem_bindings = 0;
+ }
+
pscreen->destroy = nvc0_screen_destroy;
pscreen->context_create = nvc0_create;
pscreen->is_format_supported = nvc0_screen_is_format_supported;
--
2.1.3
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