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drm/i915: Add missing ww lock in intel_dsb_prepare.
Because of the long lifetime of the mapping, we cannot wrap this in a simple limited ww lock. Just use the unlocked version of pin_map, because we'll likely release the mapping a lot later, in a different thread. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-39-maarten.lankhorst@linux.intel.com
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@ -293,7 +293,7 @@ void intel_dsb_prepare(struct intel_crtc_state *crtc_state)
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goto out;
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goto out;
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}
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}
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buf = i915_gem_object_pin_map(vma->obj, I915_MAP_WC);
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buf = i915_gem_object_pin_map_unlocked(vma->obj, I915_MAP_WC);
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if (IS_ERR(buf)) {
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if (IS_ERR(buf)) {
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drm_err(&i915->drm, "Command buffer creation failed\n");
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drm_err(&i915->drm, "Command buffer creation failed\n");
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i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP);
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i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP);
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