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[RFC,047/162] drm/i915: Add missing ww lock in intel_dsb_prepare.

Message ID 20201127120718.454037-48-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show
Series DG1 + LMEM enabling | expand

Commit Message

Matthew Auld Nov. 27, 2020, 12:05 p.m. UTC
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
 drivers/gpu/drm/i915/display/intel_dsb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c
index 566fa72427b3..857126822a88 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -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);