diff options
| author | Dave Airlie <airlied@redhat.com> | 2024-01-24 04:50:58 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2024-02-23 01:20:03 +0100 |
| commit | 3f4d8aac6e768c2215ce68275256971c2f54f0c8 (patch) | |
| tree | 33de33593cdd8a58d4ff4dc965e9c8256f757ad3 /drivers/gpu/drm | |
| parent | nouveau/gsp: add kconfig option to enable GSP paths by default (diff) | |
| download | linux-3f4d8aac6e768c2215ce68275256971c2f54f0c8.tar.xz linux-3f4d8aac6e768c2215ce68275256971c2f54f0c8.zip | |
nouveau: add an ioctl to return vram bar size.
This returns the BAR resources size so userspace can make
decisions based on rebar support.
userspace using this has been proposed for nvk, but
it's a rather trivial uapi addition.
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_abi16.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index d1bb8151a1df..4cb323bc3233 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -199,6 +199,7 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS) struct nouveau_cli *cli = nouveau_cli(file_priv); struct nouveau_drm *drm = nouveau_drm(dev); struct nvif_device *device = &drm->client.device; + struct nvkm_device *nvkm_device = nvxx_device(&drm->client.device); struct nvkm_gr *gr = nvxx_gr(device); struct drm_nouveau_getparam *getparam = data; struct pci_dev *pdev = to_pci_dev(dev->dev); @@ -263,6 +264,9 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS) getparam->value = nouveau_exec_push_max_from_ib_max(ib_max); break; } + case NOUVEAU_GETPARAM_VRAM_BAR_SIZE: + getparam->value = nvkm_device->func->resource_size(nvkm_device, 1); + break; default: NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param); return -EINVAL; |