drm/ttm: add TTM_PL_FLAG_CONTIGUOUS v2

This allows drivers to specify if they need a contiguous allocation or not.

v2: use space instead of tab

Signed-off-by: Christian König <[e-mail]>
Reviewed-by: Nicolai Hähnle <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/ttm/ttm_bo.c

···
 
 		*new_flags = heap->flags;
 		if ((*new_flags & mem->placement & TTM_PL_MASK_CACHING) &&
-		    (*new_flags & mem->placement & TTM_PL_MASK_MEM))
+		    (*new_flags & mem->placement & TTM_PL_MASK_MEM) &&
+		    (!(*new_flags & TTM_PL_FLAG_CONTIGUOUS) ||
+		     (mem->placement & TTM_PL_FLAG_CONTIGUOUS)))
 			return true;
 	}
 	return false;

include/drm/ttm/ttm_placement.h

···
 #define TTM_PL_FLAG_CACHED      (1 << 16)
 #define TTM_PL_FLAG_UNCACHED    (1 << 17)
 #define TTM_PL_FLAG_WC          (1 << 18)
+#define TTM_PL_FLAG_CONTIGUOUS  (1 << 19)
 #define TTM_PL_FLAG_NO_EVICT    (1 << 21)
 #define TTM_PL_FLAG_TOPDOWN     (1 << 22)