From: Alex Elder <elder@linaro.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: David Miller <davem@davemloft.net>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
syadagir@codeaurora.org, mjavid@codeaurora.org,
evgreen@chromium.org, Ben Chan <benchan@google.com>,
Eric Caruso <ejcaruso@google.com>,
abhishek.esse@gmail.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 12/18] soc: qcom: ipa: immediate commands
Date: Mon, 20 May 2019 09:55:42 -0500 [thread overview]
Message-ID: <d29335f3-75f3-00f6-8ae9-690ef3bffa96@linaro.org> (raw)
In-Reply-To: <CAK8P3a3161Oc3ALB74LTuDny-aO9E4VGYpmqQSNoDNbj6PhRsQ@mail.gmail.com>
On 5/20/19 9:50 AM, Arnd Bergmann wrote:
> Ok, that sounds reasonable, yes. I'm not sure if
> dma_alloc_coherent() guarantees zero-initialization
> though, so if that is required, you may have to
> add a memset().
I had dma_zalloc_coherent() originally but I think
Christoph Hellwig posted something recently that
removed that function, because dma_alloc_coherent()
always zeroes the underlying memory.
+Christoph, who might be able to explain or confirm
-Alex
next prev parent reply other threads:[~2019-05-20 14:55 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-12 1:24 [PATCH 00/18] net: introduce Qualcomm IPA driver Alex Elder
2019-05-12 1:24 ` [PATCH 01/18] bitfield.h: add FIELD_MAX() and field_max() Alex Elder
2019-05-12 6:33 ` Kalle Valo
2019-05-12 12:18 ` Alex Elder
2019-05-12 19:30 ` Johannes Berg
2019-05-12 1:24 ` [PATCH 02/18] soc: qcom: create "include/soc/qcom/rmnet.h" Alex Elder
2019-05-12 2:34 ` Joe Perches
2019-05-12 12:15 ` Alex Elder
2019-05-15 6:59 ` Arnd Bergmann
2019-05-15 12:03 ` Alex Elder
2019-05-16 1:09 ` Subash Abhinov Kasiviswanathan
2019-05-17 17:27 ` Alex Elder
2019-05-17 18:08 ` Subash Abhinov Kasiviswanathan
2019-05-19 17:37 ` Alex Elder
2019-05-12 1:24 ` [PATCH 03/18] dt-bindings: soc: qcom: add IPA bindings Alex Elder
2019-05-15 7:03 ` Arnd Bergmann
2019-05-15 12:04 ` Alex Elder
2019-05-15 16:50 ` Rob Herring
2019-05-15 17:05 ` Alex Elder
2019-05-12 1:24 ` [PATCH 04/18] soc: qcom: ipa: main code Alex Elder
2019-05-12 1:24 ` [PATCH 05/18] soc: qcom: ipa: configuration data Alex Elder
2019-05-12 1:24 ` [PATCH 06/18] soc: qcom: ipa: clocking, interrupts, and memory Alex Elder
2019-05-12 1:24 ` [PATCH 07/18] soc: qcom: ipa: GSI headers Alex Elder
2019-05-12 1:24 ` [PATCH 08/18] soc: qcom: ipa: the generic software interface Alex Elder
2019-05-15 7:21 ` Arnd Bergmann
2019-05-15 12:13 ` Alex Elder
2019-05-15 12:40 ` Arnd Bergmann
2019-05-15 10:47 ` Arnd Bergmann
2019-05-15 13:32 ` Alex Elder
2019-05-15 19:37 ` Arnd Bergmann
2019-05-12 1:24 ` [PATCH 09/18] soc: qcom: ipa: GSI transactions Alex Elder
2019-05-15 7:34 ` Arnd Bergmann
2019-05-15 12:25 ` Alex Elder
2019-05-15 20:50 ` Arnd Bergmann
2019-05-17 18:08 ` Alex Elder
2019-05-17 18:33 ` Arnd Bergmann
2019-05-17 18:44 ` Alex Elder
2019-05-19 17:11 ` Alex Elder
2019-05-20 9:25 ` Arnd Bergmann
2019-05-20 12:50 ` Alex Elder
2019-05-20 14:43 ` Arnd Bergmann
2019-05-20 14:44 ` Alex Elder
2019-05-20 16:34 ` Evan Green
2019-05-20 16:50 ` Alex Elder
2019-05-20 17:36 ` Evan Green
2019-05-12 1:25 ` [PATCH 10/18] soc: qcom: ipa: IPA interface to GSI Alex Elder
2019-05-12 1:25 ` [PATCH 11/18] soc: qcom: ipa: IPA endpoints Alex Elder
2019-05-12 1:25 ` [PATCH 12/18] soc: qcom: ipa: immediate commands Alex Elder
2019-05-15 8:16 ` Arnd Bergmann
2019-05-15 12:35 ` Alex Elder
2019-05-18 0:34 ` Alex Elder
2019-05-20 14:50 ` Arnd Bergmann
2019-05-20 14:55 ` Alex Elder [this message]
2019-05-20 17:35 ` Christoph Hellwig
2019-05-12 1:25 ` [PATCH 13/18] soc: qcom: ipa: IPA network device and microcontroller Alex Elder
2019-05-15 8:21 ` Arnd Bergmann
2019-05-15 12:46 ` Alex Elder
2019-05-12 1:25 ` [PATCH 14/18] soc: qcom: ipa: AP/modem communications Alex Elder
2019-05-12 1:25 ` [PATCH 15/18] soc: qcom: ipa: support build of IPA code Alex Elder
2019-05-12 1:25 ` [PATCH 16/18] MAINTAINERS: add entry for the Qualcomm IPA driver Alex Elder
2019-05-12 1:25 ` [PATCH 17/18] arm64: dts: sdm845: add IPA information Alex Elder
2019-05-12 1:25 ` [PATCH 18/18] arm64: defconfig: enable build of IPA code Alex Elder
2019-05-15 8:23 ` Arnd Bergmann
2019-05-15 12:49 ` Alex Elder
2019-05-15 12:37 ` [PATCH 00/18] net: introduce Qualcomm IPA driver Arnd Bergmann
2019-05-15 12:52 ` Alex Elder
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