From: Arnd Bergmann <arnd@arndb.de>
To: Scott Branden <scott.branden@broadcom.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
David Brown <david.brown@linaro.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Shuah Khan <shuah@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Shuah Khan <skhan@linuxfoundation.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-arm-msm@vger.kernel.org,
Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>,
BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
Olof Johansson <olof@lixom.net>,
Andrew Morton <akpm@linux-foundation.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Colin Ian King <colin.king@canonical.com>,
Kees Cook <keescook@chromium.org>, Takashi Iwai <tiwai@suse.de>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@vger.kernel.org>,
Desmond Yan <desmond.yan@broadcom.com>,
James Hu <james.hu@broadcom.com>,
Linux Media Mailing List <linux-media@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 6/7] misc: bcm-vk: add Broadcom Valkyrie driver
Date: Tue, 27 Aug 2019 16:14:54 +0200 [thread overview]
Message-ID: <CAK8P3a1WBkmXbJx=rZMumxn7EN4bmA1AdZEgrWBVyQ3XNngU6Q@mail.gmail.com> (raw)
In-Reply-To: <20190822192451.5983-7-scott.branden@broadcom.com>
On Thu, Aug 22, 2019 at 9:25 PM Scott Branden
<scott.branden@broadcom.com> wrote:
>
> Add Broadcom Valkyrie driver offload engine.
> This driver interfaces to the Valkyrie PCIe offload engine to perform
> should offload functions as video transcoding on multiple streams
> in parallel. Valkyrie device is booted from files loaded using
> request_firmware_into_buf mechanism. After booted card status is updated
> and messages can then be sent to the card.
> Such messages contain scatter gather list of addresses
> to pull data from the host to perform operations on.
>
> Signed-off-by: Scott Branden <scott.branden@broadcom.com>
> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com>
> Signed-off-by: James Hu <james.hu@broadcom.com>
Can you explain the decision to make this is a standalone misc driver
rather than hooking into the existing framework in drivers/media?
There is an existing interface that looks like it could fit the hardware
in include/media/v4l2-mem2mem.h. Have you considered using that?
There is also support for video transcoding using GPUs in
driver/gpu/drm/, that could also be used in theory, though it sounds
like a less optimal fit.
Arnd
next prev parent reply other threads:[~2019-08-27 14:15 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 19:24 [PATCH 0/7] firmware: add partial read support in request_firmware_into_buf Scott Branden
2019-08-22 19:24 ` [PATCH 1/7] fs: introduce kernel_pread_file* support Scott Branden
2019-08-23 12:29 ` Takashi Iwai
2019-08-23 19:55 ` Scott Branden
2019-08-23 21:29 ` Luis Chamberlain
2019-08-22 19:24 ` [PATCH 2/7] firmware: add offset to request_firmware_into_buf Scott Branden
2019-08-22 19:47 ` Luis Chamberlain
2019-08-22 20:07 ` Scott Branden
2019-08-22 21:12 ` Luis Chamberlain
2019-08-22 23:30 ` Scott Branden
2019-08-23 15:47 ` Luis Chamberlain
2019-08-23 20:16 ` Scott Branden
2019-08-23 10:05 ` Takashi Iwai
2019-08-23 19:44 ` Scott Branden
2019-08-26 15:20 ` Takashi Iwai
2019-08-26 15:41 ` Scott Branden
2019-08-26 15:57 ` Takashi Iwai
2019-08-26 17:12 ` Takashi Iwai
2019-08-26 17:24 ` Scott Branden
2019-08-27 10:40 ` Takashi Iwai
2019-10-11 13:31 ` Luis Chamberlain
2020-02-21 0:11 ` Scott Branden
2020-02-21 8:44 ` Arnd Bergmann
2020-02-21 18:23 ` Scott Branden
2020-02-21 23:37 ` Scott Branden
2020-02-22 8:06 ` Arnd Bergmann
2019-08-22 19:24 ` [PATCH 3/7] test_firmware: add partial read support for request_firmware_into_buf Scott Branden
2019-08-22 19:24 ` [PATCH 4/7] selftests: firmware: Test partial file reads of request_firmware_into_buf Scott Branden
2019-08-22 19:24 ` [PATCH 5/7] bcm-vk: add bcm_vk UAPI Scott Branden
2019-08-27 13:54 ` Arnd Bergmann
2019-08-27 14:49 ` Kieran Bingham
2019-10-08 15:59 ` Olof Johansson
2019-08-22 19:24 ` [PATCH 6/7] misc: bcm-vk: add Broadcom Valkyrie driver Scott Branden
2019-08-27 14:14 ` Arnd Bergmann [this message]
2019-08-27 15:25 ` Nicolas Dufresne
2019-08-22 19:24 ` [PATCH 7/7] MAINTAINERS: bcm-vk: Add maintainer for Broadcom Valkyrie Driver Scott Branden
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