+ pgprot_t prot = ttm_io_prot(bo, old_mem,
PAGE_KERNEL);
ret = ttm_copy_ttm_io_page(ttm, new_iomap, page,
prot);
} else if (new_iomap == NULL) {
- pgprot_t prot = ttm_io_prot(new_mem->placement,
- PAGE_KERNEL);
+ pgprot_t prot = ttm_io_prot(bo, new_mem,
PAGE_KERNEL);
ret = ttm_copy_io_ttm_page(ttm, old_iomap, page,
prot);
} else {
@@ -384,21 +382,28 @@ static int ttm_buffer_object_transfer(struct
ttm_buffer_object *bo,
return 0;
}
-pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp)
+pgprot_t ttm_io_prot(struct ttm_buffer_object *bo, struct ttm_resource
*res,
+ pgprot_t tmp)
{
+ struct ttm_resource_manager *man;
+ enum ttm_caching caching;
+
+ man = ttm_manager_type(bo->bdev, res->mem_type);
+ caching = man->use_tt ? bo->ttm->caching : res->bus.caching;
+
/* Cached mappings need no adjustment */
- if (caching_flags & TTM_PL_FLAG_CACHED)
+ if (caching == ttm_cached)
return tmp;
#if defined(__i386__) || defined(__x86_64__)
- if (caching_flags & TTM_PL_FLAG_WC)
+ if (caching == ttm_write_combined)
tmp = pgprot_writecombine(tmp);
else if (boot_cpu_data.x86 > 3)
tmp = pgprot_noncached(tmp);
#endif
#if defined(__ia64__) || defined(__arm__) || defined(__aarch64__) || \
defined(__powerpc__) || defined(__mips__)
- if (caching_flags & TTM_PL_FLAG_WC)
+ if (caching == ttm_write_combined)
tmp = pgprot_writecombine(tmp);
else
tmp = pgprot_noncached(tmp);
@@ -466,7 +471,7 @@ static int ttm_bo_kmap_ttm(struct ttm_buffer_object
*bo,
* We need to use vmap to get the desired page protection
* or to make the buffer object look contiguous.
*/
- prot = ttm_io_prot(mem->placement, PAGE_KERNEL);
+ prot = ttm_io_prot(bo, mem, PAGE_KERNEL);
map->bo_kmap_type = ttm_bo_map_vmap;
map->virtual = vmap(ttm->pages + start_page, num_pages,
0, prot);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c
b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 87ee8f0ca08e..eeaca5d1efe3 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -310,7 +310,7 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct
vm_fault *vmf,
if (unlikely(page_offset >= bo->num_pages))
return VM_FAULT_SIGBUS;
- prot = ttm_io_prot(bo->mem.placement, prot);
+ prot = ttm_io_prot(bo, &bo->mem, prot);
if (!bo->mem.bus.is_iomem) {
struct ttm_operation_ctx ctx = {
.interruptible = false,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
index ea2f2f937eb3..f21881e087db 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
@@ -484,8 +484,8 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
d.src_pages = src->ttm->pages;
d.dst_num_pages = dst->num_pages;
d.src_num_pages = src->num_pages;
- d.dst_prot = ttm_io_prot(dst->mem.placement, PAGE_KERNEL);
- d.src_prot = ttm_io_prot(src->mem.placement, PAGE_KERNEL);
+ d.dst_prot = ttm_io_prot(dst, &dst->mem, PAGE_KERNEL);
+ d.src_prot = ttm_io_prot(src, &src->mem, PAGE_KERNEL);
d.diff = diff;
for (j = 0; j < h; ++j) {
diff --git a/include/drm/ttm/ttm_bo_driver.h
b/include/drm/ttm/ttm_bo_driver.h
index 9897a16c0a9d..a028b418c6b4 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -666,13 +666,15 @@ int ttm_bo_pipeline_gutting(struct
ttm_buffer_object *bo);
/**
* ttm_io_prot
*
- * @c_state: Caching state.
+ * bo: ttm buffer object
+ * res: ttm resource object
* @tmp: Page protection flag for a normal, cached mapping.
*
* Utility function that returns the pgprot_t that should be used for
* setting up a PTE with the caching model indicated by @c_state.
*/
-pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);
+pgprot_t ttm_io_prot(struct ttm_buffer_object *bo, struct ttm_resource
*res,
+ pgprot_t tmp);
/**
* ttm_bo_tt_bind
--
2.17.1
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