From: Chris Wilson <[email protected]>
commit 5a383d443b29a140094430f3ad1d02fa1acc2b80 upstream.
On eviction, we acquire the vm->mutex and then wait on the vma->active.
Therefore when binding and pinning the vma, we must follow the same
sequence, lock/pin the vma then mark it active. Otherwise, we mark the
vma as active, then wait for the vm->mutex, and meanwhile the evictor
holding the mutex waits upon us to complete our activity.
Fixes: 8ccfc20a7d56 ("drm/i915/gt: Mark ring->vma as active while pinned")
Signed-off-by: Chris Wilson <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: <[email protected]> # v5.6+
Reviewed-by: Matthew Auld <[email protected]>
Link:
https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 8567774e87e23a57155e5102f81208729b992ae6)
Signed-off-by: Rodrigo Vivi <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/i915/gt/intel_context.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/i915/gt/intel_context.c
+++ b/drivers/gpu/drm/i915/gt/intel_context.c
@@ -201,25 +201,25 @@ static int __ring_active(struct intel_ri
{
int err;
- err = i915_active_acquire(&ring->vma->active);
+ err = intel_ring_pin(ring);
if (err)
return err;
- err = intel_ring_pin(ring);
+ err = i915_active_acquire(&ring->vma->active);
if (err)
- goto err_active;
+ goto err_pin;
return 0;
-err_active:
- i915_active_release(&ring->vma->active);
+err_pin:
+ intel_ring_unpin(ring);
return err;
}
static void __ring_retire(struct intel_ring *ring)
{
- intel_ring_unpin(ring);
i915_active_release(&ring->vma->active);
+ intel_ring_unpin(ring);
}
__i915_active_call
