linux-kernel - Re: [PATCH 03/12] drm/amdkfd: Use DECLARE

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Message-ID: <CAFCwf11rWZ=JyZpxoJTZofk8mLJqkraaGQ2Si6btw1pWESy_Ww@mail.gmail.com>
Date:	Wed, 20 May 2015 10:32:26 +0300
From:	Oded Gabbay <oded.gabbay@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	Oded Gabbay <oded.gabbay@....com>,
	David Airlie <airlied@...ux.ie>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH 03/12] drm/amdkfd: Use DECLARE_BITMAP

On Wed, May 20, 2015 at 4:37 AM, Joe Perches <joe@...ches.com> wrote:
> Use the generic mechanism to declare a bitmap instead of unsigned long.
>
> It seems that "struct kfd_process.allocated_queue_bitmap" is unused.
> Maybe it could be deleted instead.
>
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> index f21fcce..aba3e5d 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> @@ -150,8 +150,7 @@ struct kfd_dev {
>
>         const struct kfd2kgd_calls *kfd2kgd;
>         struct mutex doorbell_mutex;
> -       unsigned long doorbell_available_index[DIV_ROUND_UP(
> -               KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)];
> +       DECLARE_BITMAP(doorbell_available_index, KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
>
>         void *gtt_mem;
>         uint64_t gtt_start_gpu_addr;
> @@ -473,7 +472,7 @@ struct kfd_process {
>         /* Size is queue_array_size, up to MAX_PROCESS_QUEUES. */
>         struct kfd_queue **queues;
>
> -       unsigned long allocated_queue_bitmap[DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, BITS_PER_LONG)];
> +       DECLARE_BITMAP(allocated_queue_bitmap, KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
>
>         /*Is the user space process 32 bit?*/
>         bool is_32bit_user_mode;
> --
> 2.1.2
>
> --
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Thanks!
I indeed deleted the allocated_queue_bitmap and squashed it into your
patch. It was a residue from a very early version.
Applied to my -next branch.

Oded
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