Commit 3312be8f authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/ttm: move populated state into page flags 



Just use the top bit of page flags to store the populated state.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200915024007.67163-8-airlied@gmail.com
parent 3a4ab168

include/drm/ttm/ttm_tt.h

+5 −4
Original line number Diff line number Diff line
@@ -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;

}



/**

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