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| author | Dave Airlie <airlied@redhat.com> | 2024-01-24 06:50:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:12:45 +0300 |
| commit | 929eaf32dde42857cae6cd0e42eb789d15dfe003 (patch) | |
| tree | 96740e0dd054927229fd143078be6aa675bc77c5 /drivers/gpu/drm | |
| parent | 38c2fd9aeddc3fe30379c08256dd2fb343d53a56 (diff) | |
| download | linux-929eaf32dde42857cae6cd0e42eb789d15dfe003.tar.xz | |
nouveau: add an ioctl to return vram bar size.
[ Upstream commit 3f4d8aac6e768c2215ce68275256971c2f54f0c8 ]
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>
Stable-dep-of: aed9a1a4f710 ("drm/nouveau: use tile_mode and pte_kind for VM_BIND bo allocations")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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 2edd7bb13fae..d05bd0ecea2b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -204,6 +204,7 @@ 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); @@ -268,6 +269,9 @@ 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; |