diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2015-02-20 18:22:59 +0900 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2015-04-14 17:00:42 +1000 |
| commit | eaecf0326f096faaba462eae48a3b30bcb1f7009 (patch) | |
| tree | da4d31cc0d0a867786e2cca541d6a89a1541c921 /drivers/gpu/drm/nouveau/nouveau_display.c | |
| parent | c6a7b026a3a80662d8f7bb6b4f7821329aa7111b (diff) | |
make RAM device optional
Having a RAM device does not make sense for chips like GK20A which have
no dedicated video memory. The dummy RAM device that we used so far
works as a temporary band-aid, but in the longer term it is desirable
for the driver to be able to work without any kind of VRAM.
This patch adds a few conditionals in places where a RAM device was
assumed to be present and allows some more objects to be allocated from
the TT domain, allowing Nouveau to handle GPUs for which
pfb->ram == NULL.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 860b0e2d4181..8670d90cdc11 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -869,13 +869,20 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args) { struct nouveau_bo *bo; + uint32_t domain; int ret; args->pitch = roundup(args->width * (args->bpp / 8), 256); args->size = args->pitch * args->height; args->size = roundup(args->size, PAGE_SIZE); - ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo); + /* Use VRAM if there is any ; otherwise fallback to system memory */ + if (nouveau_drm(dev)->device.info.ram_size != 0) + domain = NOUVEAU_GEM_DOMAIN_VRAM; + else + domain = NOUVEAU_GEM_DOMAIN_GART; + + ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo); if (ret) return ret; |