From dfcbd5506817c7bfba67c7c2232610f7693b1938 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 1 Nov 2017 03:56:19 +1000 Subject: drm/nouveau/imem/nv50: map bar2 write-combined Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c index 9b5606cb2f4e..ec2904a0e9fc 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c @@ -142,8 +142,8 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm) /* Make the mapping visible to the host. */ iobj->bar = bar; - iobj->map = ioremap(device->func->resource_addr(device, 3) + - (u32)iobj->bar.offset, size); + iobj->map = ioremap_wc(device->func->resource_addr(device, 3) + + (u32)iobj->bar.offset, size); if (!iobj->map) { nvkm_warn(subdev, "PRAMIN ioremap failed\n"); nvkm_vm_put(&iobj->bar); @@ -164,6 +164,7 @@ nv50_instobj_release(struct nvkm_memory *memory) struct nv50_instmem *imem = iobj->imem; struct nvkm_subdev *subdev = &imem->base.subdev; + wmb(); nvkm_bar_flush(subdev->device->bar); if (refcount_dec_and_mutex_lock(&iobj->maps, &subdev->mutex)) { -- cgit v1.2.3