From: Alexandru Ardelean <ardeleanalex@gmail.com>
To: Paul Cercueil <paul@crapouillou.net>
Cc: "Jonathan Cameron" <jic23@kernel.org>,
"Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
linux-iio <linux-iio@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
linaro-mm-sig@lists.linaro.org,
"Alexandru Ardelean" <alexandru.ardelean@analog.com>
Subject: Re: [PATCH 08/15] iio: buffer-dma: split iio_dma_buffer_fileio_free() function
Date: Tue, 16 Nov 2021 12:59:30 +0200 [thread overview]
Message-ID: <CA+U=DsqP0Wg54xgL3_-SmRc2v0GXQv9fDf=350P+sLvJhhYnng@mail.gmail.com> (raw)
In-Reply-To: <20211115141925.60164-9-paul@crapouillou.net>
On Mon, Nov 15, 2021 at 4:20 PM Paul Cercueil <paul@crapouillou.net> wrote:
>
> From: Alexandru Ardelean <alexandru.ardelean@analog.com>
>
> A part of the logic in the iio_dma_buffer_exit() is required for the change
> to add mmap support to IIO buffers.
> This change splits the logic into a separate function, which will be
> re-used later.
>
Not sure how the protocol is here, since my old @analog.com email
isn't working anymore.
But:
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Thanks :)
Alex
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
> drivers/iio/buffer/industrialio-buffer-dma.c | 39 +++++++++++---------
> 1 file changed, 22 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
> index eeeed6b2e0cf..eb8cfd3af030 100644
> --- a/drivers/iio/buffer/industrialio-buffer-dma.c
> +++ b/drivers/iio/buffer/industrialio-buffer-dma.c
> @@ -358,6 +358,27 @@ int iio_dma_buffer_request_update(struct iio_buffer *buffer)
> }
> EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
>
> +static void iio_dma_buffer_fileio_free(struct iio_dma_buffer_queue *queue)
> +{
> + unsigned int i;
> +
> + spin_lock_irq(&queue->list_lock);
> + for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> + if (!queue->fileio.blocks[i])
> + continue;
> + queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> + }
> + spin_unlock_irq(&queue->list_lock);
> +
> + for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> + if (!queue->fileio.blocks[i])
> + continue;
> + iio_buffer_block_put(queue->fileio.blocks[i]);
> + queue->fileio.blocks[i] = NULL;
> + }
> + queue->fileio.active_block = NULL;
> +}
> +
> static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
> struct iio_dma_buffer_block *block)
> {
> @@ -681,25 +702,9 @@ EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
> */
> void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
> {
> - unsigned int i;
> -
> mutex_lock(&queue->lock);
>
> - spin_lock_irq(&queue->list_lock);
> - for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> - if (!queue->fileio.blocks[i])
> - continue;
> - queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> - }
> - spin_unlock_irq(&queue->list_lock);
> -
> - for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> - if (!queue->fileio.blocks[i])
> - continue;
> - iio_buffer_block_put(queue->fileio.blocks[i]);
> - queue->fileio.blocks[i] = NULL;
> - }
> - queue->fileio.active_block = NULL;
> + iio_dma_buffer_fileio_free(queue);
> queue->ops = NULL;
>
> mutex_unlock(&queue->lock);
> --
> 2.33.0
>
next prev parent reply other threads:[~2021-11-16 10:59 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-15 14:19 [PATCH 00/15] iio: buffer-dma: write() and new DMABUF based API Paul Cercueil
2021-11-15 14:19 ` [PATCH 01/15] iio: buffer-dma: Get rid of incoming/outgoing queues Paul Cercueil
2021-11-16 8:23 ` Alexandru Ardelean
2021-11-21 14:05 ` Jonathan Cameron
2021-11-21 16:23 ` Lars-Peter Clausen
2021-11-21 17:52 ` Paul Cercueil
2021-11-21 18:49 ` Lars-Peter Clausen
2021-11-21 20:08 ` Paul Cercueil
2021-11-22 15:08 ` Lars-Peter Clausen
2021-11-22 15:16 ` Paul Cercueil
2021-11-22 15:17 ` Lars-Peter Clausen
2021-11-22 15:27 ` Paul Cercueil
2021-11-15 14:19 ` [PATCH 02/15] iio: buffer-dma: Remove unused iio_buffer_block struct Paul Cercueil
2021-11-16 8:22 ` Alexandru Ardelean
2021-11-15 14:19 ` [PATCH 03/15] iio: buffer-dma: Use round_down() instead of rounddown() Paul Cercueil
2021-11-16 8:26 ` Alexandru Ardelean
2021-11-21 14:08 ` Jonathan Cameron
2021-11-22 10:00 ` Paul Cercueil
2021-11-27 15:15 ` Jonathan Cameron
2021-11-15 14:19 ` [PATCH 04/15] iio: buffer-dma: Enable buffer write support Paul Cercueil
2021-11-16 8:52 ` Alexandru Ardelean
2021-11-21 14:20 ` Jonathan Cameron
2021-11-21 17:19 ` Paul Cercueil
2021-11-27 15:17 ` Jonathan Cameron
2021-11-15 14:19 ` [PATCH 05/15] iio: buffer-dmaengine: Support specifying buffer direction Paul Cercueil
2021-11-16 8:53 ` Alexandru Ardelean
2021-11-15 14:19 ` [PATCH 06/15] iio: buffer-dmaengine: Enable write support Paul Cercueil
2021-11-16 8:55 ` Alexandru Ardelean
2021-11-15 14:19 ` [PATCH 07/15] iio: core: Add new DMABUF interface infrastructure Paul Cercueil
2021-11-21 14:31 ` Jonathan Cameron
2021-11-15 14:19 ` [PATCH 08/15] iio: buffer-dma: split iio_dma_buffer_fileio_free() function Paul Cercueil
2021-11-16 10:59 ` Alexandru Ardelean [this message]
2021-11-21 13:49 ` Jonathan Cameron
2021-11-15 14:19 ` [PATCH 09/15] iio: buffer-dma: Use DMABUFs instead of custom solution Paul Cercueil
2021-11-15 14:19 ` [PATCH 10/15] iio: buffer-dma: Implement new DMABUF based userspace API Paul Cercueil
2021-11-15 14:19 ` [PATCH 11/15] iio: buffer-dma: Boost performance using write-combine cache setting Paul Cercueil
2021-11-18 11:45 ` Paul Cercueil
2021-11-21 15:00 ` Jonathan Cameron
2021-11-21 17:43 ` Paul Cercueil
2021-11-25 17:29 ` Paul Cercueil
2021-11-27 16:05 ` Jonathan Cameron
2021-11-28 13:25 ` Lars-Peter Clausen
2021-11-27 15:20 ` Jonathan Cameron
2021-11-15 14:22 ` [PATCH 12/15] iio: buffer-dmaengine: Support new DMABUF based userspace API Paul Cercueil
2021-11-15 14:22 ` [PATCH 13/15] iio: core: Add support for cyclic buffers Paul Cercueil
2021-11-16 9:50 ` Alexandru Ardelean
2021-11-15 14:22 ` [PATCH 14/15] iio: buffer-dmaengine: " Paul Cercueil
2021-11-16 9:50 ` Alexandru Ardelean
2021-11-15 14:22 ` [PATCH 15/15] Documentation: iio: Document high-speed DMABUF based API Paul Cercueil
2021-11-21 15:10 ` Jonathan Cameron
2021-11-21 17:46 ` Paul Cercueil
2021-11-15 14:37 ` [PATCH 00/15] iio: buffer-dma: write() and new " Daniel Vetter
2021-11-15 14:57 ` Paul Cercueil
2021-11-16 16:02 ` Daniel Vetter
2021-11-16 16:31 ` Laurent Pinchart
2021-11-17 8:48 ` Christian König
2021-11-17 12:50 ` Paul Cercueil
2021-11-17 13:42 ` Hennerich, Michael
2021-11-21 13:57 ` Jonathan Cameron
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