diff options
| author | Dave Airlie <airlied@redhat.com> | 2024-01-24 14:24:25 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2024-02-23 10:20:07 +1000 |
| commit | 72fa02fdf83306c52bc1eede28359e3fa32a151a (patch) | |
| tree | da081e6cb76f9224f889c68590f49bc1a1047716 | |
| parent | 3f4d8aac6e768c2215ce68275256971c2f54f0c8 (diff) | |
nouveau: add an ioctl to report vram usagedrm-fixes-2024-02-23
This reports the currently used vram allocations.
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>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_abi16.c | 5 | ||||
| -rw-r--r-- | include/uapi/drm/nouveau_drm.h | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index 4cb323bc3233..cd14f993bdd1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -267,6 +267,11 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS) case NOUVEAU_GETPARAM_VRAM_BAR_SIZE: getparam->value = nvkm_device->func->resource_size(nvkm_device, 1); break; + case NOUVEAU_GETPARAM_VRAM_USED: { + struct ttm_resource_manager *vram_mgr = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM); + getparam->value = (u64)ttm_resource_manager_usage(vram_mgr) << PAGE_SHIFT; + break; + } default: NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param); return -EINVAL; diff --git a/include/uapi/drm/nouveau_drm.h b/include/uapi/drm/nouveau_drm.h index 10a917639d8d..77d7ff0d5b11 100644 --- a/include/uapi/drm/nouveau_drm.h +++ b/include/uapi/drm/nouveau_drm.h @@ -61,6 +61,13 @@ extern "C" { */ #define NOUVEAU_GETPARAM_VRAM_BAR_SIZE 18 +/* + * NOUVEAU_GETPARAM_VRAM_USED + * + * Get remaining VRAM size. + */ +#define NOUVEAU_GETPARAM_VRAM_USED 19 + struct drm_nouveau_getparam { __u64 param; __u64 value; |