drm/nouveau/imem/nv50: map bar2 write-combined (dfcbd550) · Commits · 戴 / test

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -142,7 +142,7 @@ 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) +
		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");
		@@ -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)) {