LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Felix Kuehling <felix.kuehling@amd.com>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	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
Subject: Re: [PATCH 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable
Date: Tue, 26 Apr 2022 16:54:29 -0400	[thread overview]
Message-ID: <d43d9456-d2e4-2486-9970-8c358a599b6d@amd.com> (raw)
In-Reply-To: <80a426b3-ece2-129c-edca-03556e1ecbb6@wanadoo.fr>


Am 2022-04-26 um 14:47 schrieb Christophe JAILLET:
> Le 26/04/2022 à 20:01, Felix Kuehling a écrit :
>> Hi Christophe,
>>
>> I just stumbled over this patch series while cleaning up my inbox. 
>> Sorry for dropping it back in November. I'm about to apply it but I 
>> noticed that patch 1 is missing a Signed-off-by. Is it OK to add that 
>> in your name?
>
> Hi,
>
> No problem for me if you can add it. Thanks.
> But if you prefer a v2, it is also fine for me.

No need. I submitted the patches to amd-staging-drm-next.

Regards,
   Felix


>
> BTW sorry for missing the SoB tag. This definitively means that I 
> forgot the checkpatch.pl step for this patch, which is bad.
>
> CJ
>
>>
>> Thanks,
>>    Felix
>>
>>
>> Am 2021-11-28 um 11:45 schrieb Christophe JAILLET:
>>> 'kfd->gtt_sa_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.
>>> ---
>>>   drivers/gpu/drm/amd/amdkfd/kfd_device.c | 12 +++---------
>>>   1 file changed, 3 insertions(+), 9 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c 
>>> b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
>>> index e1294fba0c26..c5a0ce44a295 100644
>>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
>>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
>>> @@ -1252,8 +1252,6 @@ int 
>>> kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
>>>   static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int 
>>> buf_size,
>>>                   unsigned int chunk_size)
>>>   {
>>> -    unsigned int num_of_longs;
>>> -
>>>       if (WARN_ON(buf_size < chunk_size))
>>>           return -EINVAL;
>>>       if (WARN_ON(buf_size == 0))
>>> @@ -1264,11 +1262,8 @@ static int kfd_gtt_sa_init(struct kfd_dev 
>>> *kfd, unsigned int buf_size,
>>>       kfd->gtt_sa_chunk_size = chunk_size;
>>>       kfd->gtt_sa_num_of_chunks = buf_size / chunk_size;
>>> -    num_of_longs = (kfd->gtt_sa_num_of_chunks + BITS_PER_LONG - 1) /
>>> -        BITS_PER_LONG;
>>> -
>>> -    kfd->gtt_sa_bitmap = kcalloc(num_of_longs, sizeof(long), 
>>> GFP_KERNEL);
>>> -
>>> +    kfd->gtt_sa_bitmap = bitmap_zalloc(kfd->gtt_sa_num_of_chunks,
>>> +                       GFP_KERNEL);
>>>       if (!kfd->gtt_sa_bitmap)
>>>           return -ENOMEM;
>>> @@ -1278,13 +1273,12 @@ static int kfd_gtt_sa_init(struct kfd_dev 
>>> *kfd, unsigned int buf_size,
>>>       mutex_init(&kfd->gtt_sa_lock);
>>>       return 0;
>>> -
>>>   }
>>>   static void kfd_gtt_sa_fini(struct kfd_dev *kfd)
>>>   {
>>>       mutex_destroy(&kfd->gtt_sa_lock);
>>> -    kfree(kfd->gtt_sa_bitmap);
>>> +    bitmap_free(kfd->gtt_sa_bitmap);
>>>   }
>>>   static inline uint64_t kfd_gtt_sa_calc_gpu_addr(uint64_t start_addr,
>>
>

  reply	other threads:[~2022-04-26 20:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-28 16:45 Christophe JAILLET
2021-11-28 16:46 ` [PATCH 2/2] drm/amdkfd: Use non-atomic bitmap functions when possible Christophe JAILLET
2022-04-26 18:01 ` [PATCH 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable Felix Kuehling
2022-04-26 18:47   ` Christophe JAILLET
2022-04-26 20:54     ` Felix Kuehling [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-11-21 17:41 Christophe JAILLET

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d43d9456-d2e4-2486-9970-8c358a599b6d@amd.com \
    --to=felix.kuehling@amd.com \
    --cc=Xinhui.Pan@amd.com \
    --cc=airlied@linux.ie \
    --cc=alexander.deucher@amd.com \
    --cc=amd-gfx@lists.freedesktop.org \
    --cc=christian.koenig@amd.com \
    --cc=christophe.jaillet@wanadoo.fr \
    --cc=daniel@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: [PATCH 1/2] drm/amdkfd: Use bitmap_zalloc() when applicable' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).