From: Dave Airlie <airlied@xxxxxxxxxx>
Just use the top bit of page flags to store the populated state.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
include/drm/ttm/ttm_tt.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index 94e16238c93d..c777b72063db 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -42,6 +42,8 @@ struct ttm_operation_ctx;
#define TTM_PAGE_FLAG_SG (1 << 8)
#define TTM_PAGE_FLAG_NO_RETRY (1 << 9)
+#define TTM_PAGE_FLAG_PRIV_POPULATED (1 << 31)
+
enum ttm_caching_state {
tt_uncached,
tt_wc,
@@ -70,22 +72,21 @@ struct ttm_tt {
struct sg_table *sg; /* for SG objects via dma-buf */
struct file *swap_storage;
enum ttm_caching_state caching_state;
- bool populated;
};
static inline bool ttm_tt_is_populated(struct ttm_tt *tt)
{
- return tt->populated;
+ return tt->page_flags & TTM_PAGE_FLAG_PRIV_POPULATED;
}
static inline void ttm_tt_set_unpopulated(struct ttm_tt *tt)
{
- tt->populated = false;
+ tt->page_flags &= ~TTM_PAGE_FLAG_PRIV_POPULATED;
}
static inline void ttm_tt_set_populated(struct ttm_tt *tt)
{
- tt->populated = true;
+ tt->page_flags |= TTM_PAGE_FLAG_PRIV_POPULATED;
}
/**
--
2.27.0
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