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Commit a9d6dd25 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/ast: switch to using CACHED by default for sysram 



This fixes problems on ppc64 platforms, where we could end up using
a WC mapping for migrating BOs with memcpy, when really we want to
use cached memory.

Tested-by: default avatarBen Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent fd7e0d71

drivers/gpu/drm/ast/ast_ttm.c

+2 −2
Original line number Diff line number Diff line
@@ -300,9 +300,9 @@ void ast_ttm_placement(struct ast_bo *bo, int domain) 
	if (domain & TTM_PL_FLAG_VRAM)

		bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;

	if (domain & TTM_PL_FLAG_SYSTEM)

		bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;

		bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM;

	if (!c)

		bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;

		bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM;

	bo->placement.num_placement = c;

	bo->placement.num_busy_placement = c;

	for (i = 0; i < c; ++i) {