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Diffstat (limited to 'include/drm/ttm/ttm_tt.h')
-rw-r--r--include/drm/ttm/ttm_tt.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index a4eff85b1f..2b9d856ff3 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -79,6 +79,12 @@ struct ttm_tt {
* page_flags = TTM_TT_FLAG_EXTERNAL |
* TTM_TT_FLAG_EXTERNAL_MAPPABLE;
*
+ * TTM_TT_FLAG_DECRYPTED: The mapped ttm pages should be marked as
+ * not encrypted. The framework will try to match what the dma layer
+ * is doing, but note that it is a little fragile because ttm page
+ * fault handling abuses the DMA api a bit and dma_map_attrs can't be
+ * used to assure pgprot always matches.
+ *
* TTM_TT_FLAG_PRIV_POPULATED: TTM internal only. DO NOT USE. This is
* set by TTM after ttm_tt_populate() has successfully returned, and is
* then unset when TTM calls ttm_tt_unpopulate().
@@ -87,8 +93,9 @@ struct ttm_tt {
#define TTM_TT_FLAG_ZERO_ALLOC BIT(1)
#define TTM_TT_FLAG_EXTERNAL BIT(2)
#define TTM_TT_FLAG_EXTERNAL_MAPPABLE BIT(3)
+#define TTM_TT_FLAG_DECRYPTED BIT(4)
-#define TTM_TT_FLAG_PRIV_POPULATED BIT(4)
+#define TTM_TT_FLAG_PRIV_POPULATED BIT(5)
uint32_t page_flags;
/** @num_pages: Number of pages in the page array. */
uint32_t num_pages;