All of lore.kernel.org
 help / color / mirror / Atom feed
From: Adrian Larumbe <adrian.martinezlarumbe@imgtec.com>
To: <vkoul@kernel.org>, <dmaengine@vger.kernel.org>
Cc: <michal.simek@xilinx.com>, <linux-arm-kernel@lists.infradead.org>,
	<adrian.martinezlarumbe@imgtec.com>
Subject: [PATCH 0/4] Expand Xilinx CDMA functions
Date: Fri, 23 Apr 2021 02:19:09 +0100	[thread overview]
Message-ID: <20210423011913.13122-1-adrian.martinezlarumbe@imgtec.com> (raw)

Recently at Imgtec we had to provide GLES API buffers with DMA transfer
capabilities to device memory. We had access to a Xilinx CDMA IP module,
but even though the hardware supports scatter-gather operations,
the driver did not. This patch series' goal is to extend the driver
to support SG transfers on CDMA devices.

It also fixes a couple of issues I found in the driver: lack of support
for HW descriptors allocated in an extended address space (above 32 bits)
and an unusual race condition when closing a DMA channel.

Adrian Larumbe (4):
  dmaengine: xilinx_dma: Add extended address support in CDMA
  dmaengine: xilinx_dma: Add channel configuration setting callback
  dmaengine: xilinx_dma: Add CDMA SG transfer support
  dmaengine: xilinx_dma: Add device synchronisation callback

 drivers/dma/xilinx/xilinx_dma.c | 186 ++++++++++++++++++++++++++++++--
 1 file changed, 177 insertions(+), 9 deletions(-)

-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Adrian Larumbe <adrian.martinezlarumbe@imgtec.com>
To: <vkoul@kernel.org>, <dmaengine@vger.kernel.org>
Cc: <michal.simek@xilinx.com>, <linux-arm-kernel@lists.infradead.org>,
	<adrian.martinezlarumbe@imgtec.com>
Subject: [PATCH 0/4] Expand Xilinx CDMA functions
Date: Fri, 23 Apr 2021 02:19:09 +0100	[thread overview]
Message-ID: <20210423011913.13122-1-adrian.martinezlarumbe@imgtec.com> (raw)

Recently at Imgtec we had to provide GLES API buffers with DMA transfer
capabilities to device memory. We had access to a Xilinx CDMA IP module,
but even though the hardware supports scatter-gather operations,
the driver did not. This patch series' goal is to extend the driver
to support SG transfers on CDMA devices.

It also fixes a couple of issues I found in the driver: lack of support
for HW descriptors allocated in an extended address space (above 32 bits)
and an unusual race condition when closing a DMA channel.

Adrian Larumbe (4):
  dmaengine: xilinx_dma: Add extended address support in CDMA
  dmaengine: xilinx_dma: Add channel configuration setting callback
  dmaengine: xilinx_dma: Add CDMA SG transfer support
  dmaengine: xilinx_dma: Add device synchronisation callback

 drivers/dma/xilinx/xilinx_dma.c | 186 ++++++++++++++++++++++++++++++--
 1 file changed, 177 insertions(+), 9 deletions(-)

-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-04-23  1:30 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  1:19 Adrian Larumbe [this message]
2021-04-23  1:19 ` [PATCH 0/4] Expand Xilinx CDMA functions Adrian Larumbe
2021-04-23  1:19 ` [PATCH 1/4] dmaengine: xilinx_dma: Add extended address support in CDMA Adrian Larumbe
2021-04-23  1:19   ` Adrian Larumbe
2021-04-23  1:19 ` [PATCH 2/4] dmaengine: xilinx_dma: Add channel configuration setting callback Adrian Larumbe
2021-04-23  1:19   ` Adrian Larumbe
2021-04-23  1:19 ` [PATCH 3/4] dmaengine: xilinx_dma: Add CDMA SG transfer support Adrian Larumbe
2021-04-23  1:19   ` Adrian Larumbe
2021-04-23  1:19 ` [PATCH 4/4] dmaengine: xilinx_dma: Add device synchronisation callback Adrian Larumbe
2021-04-23  1:19   ` Adrian Larumbe
2021-04-23  6:33   ` Lars-Peter Clausen
2021-04-23  6:33     ` Lars-Peter Clausen
2021-04-23 11:49     ` [EXTERNAL] " Adrian Larumbe
2021-04-23 11:49       ` Adrian Larumbe
2021-04-23  9:17 ` [PATCH 0/4] Expand Xilinx CDMA functions Lars-Peter Clausen
2021-04-23  9:17   ` Lars-Peter Clausen
2021-04-23 11:38   ` [EXTERNAL] " Adrian Larumbe
2021-04-23 11:38     ` Adrian Larumbe
2021-04-23 13:24   ` Vinod Koul
2021-04-23 13:24     ` Vinod Koul
2021-04-23 13:51     ` Lars-Peter Clausen
2021-04-23 13:51       ` Lars-Peter Clausen
2021-04-23 14:36       ` [EXTERNAL] " Adrian Larumbe
2021-04-23 14:36         ` Adrian Larumbe
2021-04-23 17:20       ` Vinod Koul
2021-04-23 17:20         ` Vinod Koul
2021-06-01 10:29         ` radhey pandey
2021-06-01 10:29           ` radhey pandey
2021-07-02 14:23           ` [EXTERNAL] " Adrian Larumbe
2021-07-02 14:23             ` Adrian Larumbe
2021-07-05  3:53             ` Vinod Koul
2021-07-05  3:53               ` Vinod Koul

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=20210423011913.13122-1-adrian.martinezlarumbe@imgtec.com \
    --to=adrian.martinezlarumbe@imgtec.com \
    --cc=dmaengine@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=michal.simek@xilinx.com \
    --cc=vkoul@kernel.org \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.