diff options
| author | Christoph Bumiller <[email protected]> | 2011-04-16 15:24:07 +0200 |
|---|---|---|
| committer | Christoph Bumiller <[email protected]> | 2011-04-17 00:17:14 +0200 |
| commit | 25a7f662145f56ad15dbdf3da203a8a85594276f (patch) | |
| tree | 556cbdf4474b9c86adf37b43e12ce65d8e986c80 /src/gallium/drivers/nvc0/nvc0_screen.c | |
| parent | f4ad25fefb33ad4930b09c685688ba71b4a21f32 (diff) | |
nvc0: work around what looks like a code prefetch bug
Sounds very unlikely, but I don't have a better explanation at the
moment.
The GPU throws page faults at the first page after the code buffer
quite frequently on startup, and traces don't show us overflowing.
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_screen.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_screen.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_screen.c b/src/gallium/drivers/nvc0/nvc0_screen.c index c4cdface502..de62fd68b28 100644 --- a/src/gallium/drivers/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nvc0/nvc0_screen.c @@ -447,7 +447,10 @@ nvc0_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev) if (ret) goto fail; - nouveau_resource_init(&screen->text_heap, 0, 1 << 20); + /* XXX: getting a page fault at the end of the code buffer every few + * launches, don't use the last 256 bytes to work around them - prefetch ? + */ + nouveau_resource_init(&screen->text_heap, 0, (1 << 20) - 0x100); ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 1 << 12, 6 << 16, &screen->uniforms); |