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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-07 10:41:28 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-07 12:06:07 +0100 |
| commit | fdde3097488eebc9c62fe7311388521a2711d940 (patch) | |
| tree | 14a0368b3aefa71b398749bf7493c3d882600d1c /drivers/gpu/drm/i915/i915_mm.c | |
| parent | drm/i915: abstract display suspend/resume operations (diff) | |
| download | linux-dev-fdde3097488eebc9c62fe7311388521a2711d940.tar.xz linux-dev-fdde3097488eebc9c62fe7311388521a2711d940.zip | |
drm/i915: Drop expectations of VM_IO from our GGTT mmappings
We don't really want to use VM_IO for our GGTT mmaps (it implies that
the mmap contains memory mapped registers, which we do not expose) yet I
overzealously added it to an assert just because that's how we always
had setup the vma.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190807094128.9993-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_mm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_mm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_mm.c b/drivers/gpu/drm/i915/i915_mm.c index c23bb29e6d3e..318562ce64c0 100644 --- a/drivers/gpu/drm/i915/i915_mm.c +++ b/drivers/gpu/drm/i915/i915_mm.c @@ -63,9 +63,8 @@ int remap_io_mapping(struct vm_area_struct *vma, struct remap_pfn r; int err; - GEM_BUG_ON((vma->vm_flags & - (VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP)) != - (VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP)); +#define EXPECTED_FLAGS (VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP) + GEM_BUG_ON((vma->vm_flags & EXPECTED_FLAGS) != EXPECTED_FLAGS); /* We rely on prevalidation of the io-mapping to skip track_pfn(). */ r.mm = vma->vm_mm; |