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Commit dceb219f authored by Huang Rui's avatar Huang Rui Committed by Alex Deucher
Browse files

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: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent fe710322

include/drm/ttm/ttm_set_memory.h

+22 −0
Original line number Diff line number Diff line
@@ -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