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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-07-04 21:55:18 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-07-04 23:23:11 +0300 |
| commit | 63fd659fb1a52262a37293a9a034a912a2406b26 (patch) | |
| tree | b8292fb24da764b7f10fe320f8bcbe1ac233ec9e /drivers/gpu/drm/i915/selftests | |
| parent | 16659bc53a027f8e4bce6393476849e2bda8b8fa (diff) | |
| download | linux-63fd659fb1a52262a37293a9a034a912a2406b26.tar.xz | |
drm/i915/gtt: Pull global wc page stash under its own locking
Currently, the wc-stash used for providing flushed WC pages ready for
constructing the page directories is assumed to be protected by the
struct_mutex. However, we want to remove this global lock and so must
install a replacement global lock for accessing the global wc-stash (the
per-vm stash continues to be guarded by the vm).
We need to push ahead on this patch due to an oversight in hastily
removing the struct_mutex guard around the igt_ppgtt_alloc selftest. No
matter, it will prove very useful (i.e. will be required) in the near
future.
v2: Restore the onstack stash so that we can drop the vm->mutex in
future across the allocation.
v3: Restore the lost pagevec_init of the onstack allocation, and repaint
function names.
v4: Reorder init so that we don't try and use i915_address_space before
it is ininitialised.
Fixes: 1f6f00238abf ("drm/i915/selftests: Drop struct_mutex around lowlevel pggtt allocation")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180704185518.4193-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/huge_pages.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/mock_gtt.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c index b5e87fcdcdae..39699939587d 100644 --- a/drivers/gpu/drm/i915/selftests/huge_pages.c +++ b/drivers/gpu/drm/i915/selftests/huge_pages.c @@ -1694,7 +1694,7 @@ int i915_gem_huge_page_mock_selftests(void) dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(39)); mutex_lock(&dev_priv->drm.struct_mutex); - ppgtt = i915_ppgtt_create(dev_priv, ERR_PTR(-ENODEV), "mock"); + ppgtt = i915_ppgtt_create(dev_priv, ERR_PTR(-ENODEV)); if (IS_ERR(ppgtt)) { err = PTR_ERR(ppgtt); goto out_unlock; diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index a7956ecc3e1f..4bfb0537f9be 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -1004,7 +1004,7 @@ static int exercise_ppgtt(struct drm_i915_private *dev_priv, return PTR_ERR(file); mutex_lock(&dev_priv->drm.struct_mutex); - ppgtt = i915_ppgtt_create(dev_priv, file->driver_priv, "mock"); + ppgtt = i915_ppgtt_create(dev_priv, file->driver_priv); if (IS_ERR(ppgtt)) { err = PTR_ERR(ppgtt); goto out_unlock; diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c index 6a7f4da7b523..0da5b8c6d912 100644 --- a/drivers/gpu/drm/i915/selftests/mock_gtt.c +++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c @@ -124,7 +124,7 @@ void mock_init_ggtt(struct drm_i915_private *i915) ggtt->vm.vma_ops.set_pages = ggtt_set_pages; ggtt->vm.vma_ops.clear_pages = clear_pages; - i915_address_space_init(&ggtt->vm, i915, "global"); + i915_address_space_init(&ggtt->vm, i915); } void mock_fini_ggtt(struct drm_i915_private *i915) |