These two helpers will be used on set page caching.
Signed-off-by: Huang Rui <[email protected]>
---
include/drm/ttm/ttm_set_memory.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/include/drm/ttm/ttm_set_memory.h b/include/drm/ttm/ttm_set_memory.h
index a70723c..7c492b4 100644
--- a/include/drm/ttm/ttm_set_memory.h
+++ b/include/drm/ttm/ttm_set_memory.h
@@ -57,6 +57,18 @@ static inline int ttm_set_pages_wb(struct page *page, int
numpages)
return set_pages_wb(page, numpages);
}
+static inline int ttm_set_pages_wc(struct page *page, int numpages)
+{
+ unsigned long addr = (unsigned long)page_address(page);
+
+ return set_memory_wc(addr, numpages);
+}
+
+static inline int ttm_set_pages_uc(struct page *page, int numpages)
+{
+ return set_pages_uc(page, numpages);
+}
+
#else /* for CONFIG_X86 */
#if IS_ENABLED(CONFIG_AGP)
@@ -123,6 +135,16 @@ static inline int ttm_set_pages_wb(struct page *page, int
numpages)
#endif /* for CONFIG_AGP */
+static inline int ttm_set_pages_wc(struct page *page, int numpages)
+{
+ return 0;
+}
+
+static inline int ttm_set_pages_uc(struct page *page, int numpages)
+{
+ return 0;
+}
+
#endif /* for CONFIG_X86 */
#endif
--
2.7.4
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