From 3f4d8aac6e768c2215ce68275256971c2f54f0c8 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 24 Jan 2024 13:50:58 +1000 Subject: 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 Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_abi16.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') 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; -- cgit v1.2.3