Commit 1d5ab1ca authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Daniel Vetter
Browse files

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: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-39-maarten.lankhorst@linux.intel.com
parent e944e3cf

drivers/gpu/drm/i915/display/intel_dsb.c

+1 −1
Original line number Diff line number Diff line
@@ -293,7 +293,7 @@ void intel_dsb_prepare(struct intel_crtc_state *crtc_state) 
		goto out;

	}



	buf = i915_gem_object_pin_map(vma->obj, I915_MAP_WC);

	buf = i915_gem_object_pin_map_unlocked(vma->obj, I915_MAP_WC);

	if (IS_ERR(buf)) {

		drm_err(&i915->drm, "Command buffer creation failed\n");

		i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP);