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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-09-04 17:47:23 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-09-23 15:00:26 +1000 |
| commit | 94318d50ffc84a1ebaf1a83a0a56bbbaf415bacf (patch) | |
| tree | 33615cd5feabb051b2f8f54614a297d8e4ccd2af /drivers/gpu/drm/ttm/ttm_bo_vm.c | |
| parent | 6bd3110ce6e50fb15c975b26f068d606f4434431 (diff) | |
| download | linux-94318d50ffc84a1ebaf1a83a0a56bbbaf415bacf.tar.bz2 | |
drm/ttm: Clean usage of ttm_io_prot() with TTM_PL_FLAG_CACHED
Today, most callers of ttm_io_prot() check TTM_PL_FLAG_CACHED before
calling it since on some archs it will unconditionally create non-cached
mappings.
But not all callers do which is incorrect as far as I can tell.
Instead, move that check inside ttm_io_port() itself for all archs
and make powerpc use the same implementation as ia64 and arm
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo_vm.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index d05437f219e9..8fb7213277cc 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -197,9 +197,8 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) cvma.vm_page_prot); } else { ttm = bo->ttm; - if (!(bo->mem.placement & TTM_PL_FLAG_CACHED)) - cvma.vm_page_prot = ttm_io_prot(bo->mem.placement, - cvma.vm_page_prot); + cvma.vm_page_prot = ttm_io_prot(bo->mem.placement, + cvma.vm_page_prot); /* Allocate all page at once, most common usage */ if (ttm->bdev->driver->ttm_tt_populate(ttm)) { |