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nvc0: increase NOUVEAU_TRANSFER_PUSHBUF_THRESHOLD to 1024 on Kepler+ 

Gives a +3.89% to +5.27% FPS improvement with Hitman and +2.73% to +2.82%
FPS improvement with Dirt Rally on my GTX 1060.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Rhys Perry 2018-10-04 13:40:43 +01:00
parent d41c3cc013
commit 26ed0f0234
4 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/gallium/drivers/nouveau/nouveau_buffer.c
View File

@ -11,8 +11,6 @@
#include "nouveau_buffer.h"
#include "nouveau_mm.h"
#define NOUVEAU_TRANSFER_PUSHBUF_THRESHOLD 192
struct nouveau_transfer {
struct pipe_transfer base;
@ -147,7 +145,7 @@ nouveau_transfer_staging(struct nouveau_context *nv,
if (!nv->push_data)
permit_pb = false;
if ((size <= NOUVEAU_TRANSFER_PUSHBUF_THRESHOLD) && permit_pb) {
if ((size <= nv->screen->transfer_pushbuf_threshold) && permit_pb) {
tx->map = align_malloc(size, NOUVEAU_MIN_BUFFER_MAP_ALIGN);
if (tx->map)
tx->map += adj;

1
src/gallium/drivers/nouveau/nouveau_screen.c
View File

@ -242,6 +242,7 @@ nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
nouveau_disk_cache_create(screen);
screen->transfer_pushbuf_threshold = 192;
screen->lowmem_bindings = PIPE_BIND_GLOBAL; /* gallium limit */
screen->vidmem_bindings =
PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |

2
src/gallium/drivers/nouveau/nouveau_screen.h
View File

@ -26,6 +26,8 @@ struct nouveau_screen {
int refcount;
unsigned transfer_pushbuf_threshold;
unsigned vidmem_bindings; /* PIPE_BIND_* where VRAM placement is desired */
unsigned sysmem_bindings; /* PIPE_BIND_* where GART placement is desired */
unsigned lowmem_bindings; /* PIPE_BIND_* that require an address < 4 GiB */

7
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
View File

@ -928,6 +928,13 @@ nvc0_screen_create(struct nouveau_device *dev)
push->user_priv = screen;
push->rsvd_kick = 5;
/* TODO: could this be higher on Kepler+? how does reclocking vs no
* reclocking affect performance?
* TODO: could this be higher on Fermi?
*/
if (dev->chipset >= 0xe0)
screen->base.transfer_pushbuf_threshold = 1024;
screen->base.vidmem_bindings |= PIPE_BIND_CONSTANT_BUFFER |
PIPE_BIND_SHADER_BUFFER |
PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_INDEX_BUFFER |