On 10/30/2014 12:29 AM, Ilia Mirkin wrote:
On Mon, Oct 27, 2014 at 6:34 AM, Alexandre Courbot <acour...@nvidia.com> wrote:
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 | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index ac5823e4a8d5..ad143cd9a140 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -620,6 +620,16 @@ 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;
I think you also want to set vidmem_bindings = 0... although
potentially after the |= that's done below. Although I guess that
constbuf + command args buf need to be |='d into the sysmem_bindings
for this to work out well.
Thanks for pointing this out ; I didn't know about vidmem_bindings to be
honest. Will update and resend.
Apart from this detail, are you ok with the changes brought by these
patches?
Cheers,
Alex.
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