[PATCH 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable
Christophe JAILLET
christophe.jaillet at wanadoo.fr
Sun Nov 21 17:41:30 UTC 2021
'doorbell_bitmap' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.
Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.
Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index f29b3932e3dc..172ee8763523 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -1011,7 +1011,7 @@ static void kfd_process_destroy_pdds(struct kfd_process *p)
free_pages((unsigned long)pdd->qpd.cwsr_kaddr,
get_order(KFD_CWSR_TBA_TMA_SIZE));
- kfree(pdd->qpd.doorbell_bitmap);
+ bitmap_free(pdd->qpd.doorbell_bitmap);
idr_destroy(&pdd->alloc_idr);
kfd_free_process_doorbells(pdd->dev, pdd->doorbell_index);
@@ -1434,9 +1434,8 @@ static int init_doorbell_bitmap(struct qcm_process_device *qpd,
if (!KFD_IS_SOC15(dev->device_info->asic_family))
return 0;
- qpd->doorbell_bitmap =
- kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
- BITS_PER_BYTE), GFP_KERNEL);
+ qpd->doorbell_bitmap = bitmap_zalloc(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS
+ GFP_KERNEL);
if (!qpd->doorbell_bitmap)
return -ENOMEM;
--
2.30.2
More information about the amd-gfx
mailing list