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authorHuang Rui <ray.huang@amd.com>2018-08-01 08:49:32 +0300
committerAlex Deucher <alexander.deucher@amd.com>2018-08-02 01:23:05 +0300
commitdceb219fc60766006bfe8e53afa62816b94fcb11 (patch)
tree88b7f4c37efb8a70fdbee57f28b6cf0bdf623ef5 /include/drm/ttm
parentfe710322b81343601ca1759a9f3d4b694ed72fca (diff)
downloadlinux-dceb219fc60766006bfe8e53afa62816b94fcb11.tar.xz
drm/ttm: Add ttm_set_pages_wc and ttm_set_pages_uc helper
These two helpers will be used on set page caching. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm/ttm')
-rw-r--r--include/drm/ttm/ttm_set_memory.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_set_memory.h b/include/drm/ttm/ttm_set_memory.h
index a70723cf208b..7c492b49e38c 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