diff options
author | Matthew Auld <matthew.auld@intel.com> | 2023-07-10 10:40:39 +0100 |
---|---|---|
committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 11:35:22 -0500 |
commit | 38fa29dc2b73b54299e973d292ec7fd507d3b8c0 (patch) | |
tree | be5b29491cc4c94538d7a4ccb5c908dcd915dbad /drivers/gpu/drm/xe/xe_device.h | |
parent | b06d47be7c83165d3b3e45e1d5f9520b79c7f5cc (diff) |
drm/xe/tlb: drop unnecessary smp_wmb()
wake_up_all() and wait_event_timeout() already have the correct barriers
as per https://www.kernel.org/doc/Documentation/memory-barriers.txt.
This should ensure that the seqno_recv write can't be re-ordered wrt to
the actual wake_up_all() i.e we get woken up but there is no write. The
reader side with wait_event_timeout() also has the correct barriers.
With that drop the hand rolled smp_wmb(), which is anyway missing some
kind of matching barrier on the reader side.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_device.h')
0 files changed, 0 insertions, 0 deletions