diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-11-23 21:46:58 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-01 16:02:37 -0500 |
| commit | f37668301e362a0ed4b0b2ec6866f0a02fefa4db (patch) | |
| tree | 77f749b5faa37739f99346c03d0cf3b083b9cd03 /drivers | |
| parent | b9dd6fbd1587ca1204e6b5ea536115ab3fed1798 (diff) | |
| download | linux-f37668301e362a0ed4b0b2ec6866f0a02fefa4db.tar.bz2 | |
drm/amdkfd: Slighly optimize 'init_doorbell_bitmap()'
The 'doorbell_bitmap' bitmap has just been allocated. So we can use the
non-atomic '__set_bit()' function to save a few cycles as no concurrent
access can happen.
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 67bb1654becc..9158f9754a24 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1446,9 +1446,9 @@ static int init_doorbell_bitmap(struct qcm_process_device *qpd, for (i = 0; i < KFD_MAX_NUM_OF_QUEUES_PER_PROCESS / 2; i++) { if (i >= range_start && i <= range_end) { - set_bit(i, qpd->doorbell_bitmap); - set_bit(i + KFD_QUEUE_DOORBELL_MIRROR_OFFSET, - qpd->doorbell_bitmap); + __set_bit(i, qpd->doorbell_bitmap); + __set_bit(i + KFD_QUEUE_DOORBELL_MIRROR_OFFSET, + qpd->doorbell_bitmap); } } |