From 1c5dc33514002395cf07fa818b95ac4ac21364db Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sun, 23 Aug 2015 03:57:38 +0300 Subject: [PATCH] drm/radeon: remove volatile qualifier There doesn't seem to be any need to have 'ib' volatile, the code is not even consistent with it and some places already miss it. As it is now it's just making gcc produce worse code. If there are special requirements for that memory, then proper primitives like memory barriers or accessor functions should be used, but it doesn't look like that is needed here. While at it, change the type to match the one in radeon_ib structure. Reviewed-by: Dave Airlie Signed-off-by: Grazvydas Ignotas Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/evergreen_cs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index e31076eae73c..46f87d4aaf31 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -447,7 +447,7 @@ static int evergreen_cs_track_validate_cb(struct radeon_cs_parser *p, unsigned i * command stream. */ if (!surf.mode) { - volatile u32 *ib = p->ib.ptr; + uint32_t *ib = p->ib.ptr; unsigned long tmp, nby, bsize, size, min = 0; /* find the height the ddx wants */ @@ -1773,7 +1773,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, { struct radeon_bo_list *reloc; struct evergreen_cs_track *track; - volatile u32 *ib; + uint32_t *ib; unsigned idx; unsigned i; unsigned start_reg, end_reg, reg; @@ -2747,7 +2747,7 @@ int evergreen_dma_cs_parse(struct radeon_cs_parser *p) struct radeon_cs_chunk *ib_chunk = p->chunk_ib; struct radeon_bo_list *src_reloc, *dst_reloc, *dst2_reloc; u32 header, cmd, count, sub_cmd; - volatile u32 *ib = p->ib.ptr; + uint32_t *ib = p->ib.ptr; u32 idx; u64 src_offset, dst_offset, dst2_offset; int r;