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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-03 18:09:51 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-03 19:39:37 +0200 |
| commit | 9657aaa2055d0f7a5bce8020c35cdf66947f10b4 (patch) | |
| tree | e2b6ccb767cae6e507d9f4dc1e92e16f2df14c9f /drivers/gpu/drm/i915/i915_vma.c | |
| parent | drm/i915: Move the port sync DP_TP_CTL stuff to the encoder hook (diff) | |
| download | linux-9657aaa2055d0f7a5bce8020c35cdf66947f10b4.tar.xz linux-9657aaa2055d0f7a5bce8020c35cdf66947f10b4.zip | |
drm/i915: Revoke mmap before fence
Make sure we revoke the user's mmaps of this vma to force them to take a
pagefault *before* we remove the associated aperture detiling register.
Fixes: 0d86ee35097a ("drm/i915/gt: Make fence revocation unequivocal")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403160951.8271-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 4cdd883f9d66..42b2f24c8568 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -1258,6 +1258,9 @@ int __i915_vma_unbind(struct i915_vma *vma) GEM_BUG_ON(i915_vma_is_active(vma)); if (i915_vma_is_map_and_fenceable(vma)) { + /* Force a pagefault for domain tracking on next user access */ + i915_vma_revoke_mmap(vma); + /* * Check that we have flushed all writes through the GGTT * before the unbind, other due to non-strict nature of those @@ -1276,9 +1279,6 @@ int __i915_vma_unbind(struct i915_vma *vma) /* release the fence reg _after_ flushing */ i915_vma_revoke_fence(vma); - /* Force a pagefault for domain tracking on next user access */ - i915_vma_revoke_mmap(vma); - __i915_vma_iounmap(vma); clear_bit(I915_VMA_CAN_FENCE_BIT, __i915_vma_flags(vma)); } |