From: Vinod Koul <vkoul@kernel.org>
To: Cai Huoqing <cai.huoqing@linux.dev>
Cc: fancer.lancer@gmail.com,
"Gustavo Pimentel" <gustavo.pimentel@synopsys.com>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
linux-pci@vger.kernel.org
Subject: Re: [PATCH v9 0/4] dmaengine: dw-edma: Add support for native HDMA
Date: Wed, 12 Apr 2023 22:29:52 +0530 [thread overview]
Message-ID: <ZDbjiMq3fWtUhci9@matsya> (raw)
In-Reply-To: <20230324021420.73401-1-cai.huoqing@linux.dev>
On 24-03-23, 10:14, Cai Huoqing wrote:
> Add support for HDMA NATIVE, as long the IP design has set
> the compatible register map parameter-HDMA_NATIVE,
> which allows compatibility for native HDMA register configuration.
>
> The HDMA Hyper-DMA IP is an enhancement of the eDMA embedded-DMA IP.
> And the native HDMA registers are different from eDMA,
> so this patch add support for HDMA NATIVE mode.
>
> HDMA write and read channels operate independently to maximize
> the performance of the HDMA read and write data transfer over
> the link When you configure the HDMA with multiple read channels,
> then it uses a round robin (RR) arbitration scheme to select
> the next read channel to be serviced.The same applies when
> youhave multiple write channels.
>
> The native HDMA driver also supports a maximum of 16 independent
> channels (8 write + 8 read), which can run simultaneously.
> Both SAR (Source Address Register) and DAR (Destination Address Register)
> are aligned to byte.
It fails to apply, pls rebase and resend
--
~Vinod
prev parent reply other threads:[~2023-04-12 17:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-24 2:14 [PATCH v9 0/4] dmaengine: dw-edma: Add support for native HDMA Cai Huoqing
2023-03-24 2:14 ` [PATCH v9 1/4] dmaengine: dw-edma: Rename dw_edma_core_ops structure to dw_edma_plat_ops Cai Huoqing
2023-03-24 2:14 ` [PATCH v9 2/4] dmaengine: dw-edma: Create a new dw_edma_core_ops structure to abstract controller operation Cai Huoqing
2023-03-24 2:14 ` [PATCH v9 3/4] dmaengine: dw-edma: Add support for native HDMA Cai Huoqing
2023-03-24 2:14 ` [PATCH v9 4/4] dmaengine: dw-edma: Add HDMA DebugFS support Cai Huoqing
2023-03-24 7:44 ` [PATCH v9 0/4] dmaengine: dw-edma: Add support for native HDMA Serge Semin
2023-04-11 16:53 ` Serge Semin
2023-04-12 16:59 ` Vinod Koul [this message]
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=ZDbjiMq3fWtUhci9@matsya \
--to=vkoul@kernel.org \
--cc=bhelgaas@google.com \
--cc=cai.huoqing@linux.dev \
--cc=dmaengine@vger.kernel.org \
--cc=fancer.lancer@gmail.com \
--cc=gustavo.pimentel@synopsys.com \
--cc=jingoohan1@gmail.com \
--cc=kw@linux.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=robh@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 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).