From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: Felix.Kuehling@amd.com, alexander.deucher@amd.com,
christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie,
daniel@ffwll.ch
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH v2 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable
Date: Tue, 23 Nov 2021 21:46:44 +0100 [thread overview]
Message-ID: <cebaed4e892db804eece363e07a3ddd04af0f7be.1637700315.git.christophe.jaillet@wanadoo.fr> (raw)
'doorbell_bitmap' and 'queue_slot_bitmap' are bitmaps. 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.
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
v1 --> v2: Compile tested :)
Add a missing ',' (kernel test robot)
Add kfd_process_queue_manager.c (Felix Kuehling)
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 7 +++----
drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 7 +++----
2 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index d4c8a6948a9f..67bb1654becc 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);
@@ -1433,9 +1433,8 @@ static int init_doorbell_bitmap(struct qcm_process_device *qpd,
if (!KFD_IS_SOC15(dev))
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;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 4f8464658daf..c5f5a25c6dcc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -135,9 +135,8 @@ void kfd_process_dequeue_from_all_devices(struct kfd_process *p)
int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p)
{
INIT_LIST_HEAD(&pqm->queues);
- pqm->queue_slot_bitmap =
- kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
- BITS_PER_BYTE), GFP_KERNEL);
+ pqm->queue_slot_bitmap = bitmap_zalloc(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
+ GFP_KERNEL);
if (!pqm->queue_slot_bitmap)
return -ENOMEM;
pqm->process = p;
@@ -159,7 +158,7 @@ void pqm_uninit(struct process_queue_manager *pqm)
kfree(pqn);
}
- kfree(pqm->queue_slot_bitmap);
+ bitmap_free(pqm->queue_slot_bitmap);
pqm->queue_slot_bitmap = NULL;
}
--
2.30.2
next reply other threads:[~2021-11-23 20:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-23 20:46 Christophe JAILLET [this message]
2021-11-23 20:46 ` [PATCH v2 2/2] drm/amdkfd: Slighly optimize 'init_doorbell_bitmap()' Christophe JAILLET
2021-11-25 21:37 ` Felix Kuehling
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