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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 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable
Date: Sun, 21 Nov 2021 18:41:30 +0100	[thread overview]
Message-ID: <2343a4e6547a8436419308744ba8c433088922a5.1637516393.git.christophe.jaillet@wanadoo.fr> (raw)

'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@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


             reply	other threads:[~2021-11-21 17:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-21 17:41 Christophe JAILLET [this message]
2021-11-21 17:41 ` [PATCH 2/2] drm/amdkfd: Slighly optimize 'init_doorbell_bitmap()' Christophe JAILLET
2021-11-22 21:44   ` Felix Kuehling
2021-11-23  6:02     ` Christophe JAILLET
2021-11-28 16:45 [PATCH 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable Christophe JAILLET
2022-04-26 18:01 ` Felix Kuehling
2022-04-26 18:47   ` Christophe JAILLET
2022-04-26 20:54     ` Felix Kuehling

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