diff options
| author | Christian König <christian.koenig@amd.com> | 2020-09-30 11:17:44 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-10-15 12:51:13 +0200 |
| commit | 1cf65c45183a6c8b4703675d40e709f7ffed935c (patch) | |
| tree | d7ccbadbc5ec0a9b5954d02f209e165a7235692b /drivers/gpu/drm/nouveau/nouveau_bo.c | |
| parent | 1b4ea4c5980ff3a64607166298269c30a9671d33 (diff) | |
drm/ttm: add caching state to ttm_bus_placement
And implement setting it up correctly in the drivers.
This allows getting rid of the placement flags for this.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/394254/
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 0c0ca44a6802..cb878c0e8276 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1134,6 +1134,8 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *reg) struct nouveau_drm *drm = nouveau_bdev(bdev); struct nvkm_device *device = nvxx_device(&drm->client.device); struct nouveau_mem *mem = nouveau_mem(reg); + struct nvif_mmu *mmu = &drm->client.mmu; + const u8 type = mmu->type[drm->ttm.type_vram].type; int ret; mutex_lock(&drm->ttm.io_reserve_mutex); @@ -1149,6 +1151,7 @@ retry: reg->bus.offset = (reg->start << PAGE_SHIFT) + drm->agp.base; reg->bus.is_iomem = !drm->agp.cma; + reg->bus.caching = ttm_write_combined; } #endif if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || @@ -1162,6 +1165,14 @@ retry: reg->bus.offset = (reg->start << PAGE_SHIFT) + device->func->resource_addr(device, 1); reg->bus.is_iomem = true; + + /* Some BARs do not support being ioremapped WC */ + if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA && + type & NVIF_MEM_UNCACHED) + reg->bus.caching = ttm_uncached; + else + reg->bus.caching = ttm_write_combined; + if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) { union { struct nv50_mem_map_v0 nv50; |