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From: Kalle Valo <kvalo@codeaurora.org>
To: Rakesh Pillai <pillair@codeaurora.org>
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	Rakesh Pillai <pillair@codeaurora.org>
Subject: Re: [PATCH v2] ath10k: Set DMA address mask to 35 bit for WCN3990
Date: Mon,  4 Feb 2019 15:49:39 +0000 (UTC)	[thread overview]
Message-ID: <20190204154939.6D251608CF@smtp.codeaurora.org> (raw)
In-Reply-To: <1535992622-5074-1-git-send-email-pillair@codeaurora.org>

Rakesh Pillai <pillair@codeaurora.org> wrote:

> WCN3990 is a 37-bit target but can address memory range
> only upto 35 bits. The 36th bit is used to control the
> smmu/iommu translation and the 37th bit is used by the
> internal bus masters to access the wifi subsystem internal
> SRAM. With the DMA mask set to 37i-bit, the host driver
> can get 37-bit dma address, which leads to incorrect
> address access in the target.
> 
> Hence the host driver can used addresses upto 35-bit
> for WCN3990. Fix the dma mask for wcn3990 to 35-bit,
> instead of 37-bit.
> 
> Tested HW: WCN3990
> Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1
> 
> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

5b9030cee1be ath10k: Set DMA address mask to 35 bit for WCN3990

-- 
https://patchwork.kernel.org/patch/10586127/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches


      parent reply	other threads:[~2019-02-04 15:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-03 16:37 [PATCH v2] ath10k: Set DMA address mask to 35 bit for WCN3990 Rakesh Pillai
2018-09-03 16:37 ` Rakesh Pillai
2019-01-30 18:57 ` Bjorn Andersson
2019-01-30 18:57   ` Bjorn Andersson
2019-01-31  7:36   ` Rakesh Pillai
2019-01-31  7:36     ` Rakesh Pillai
2019-01-31 13:51   ` Kalle Valo
2019-01-31 13:51     ` Kalle Valo
2019-01-31 15:35     ` Bjorn Andersson
2019-01-31 15:35       ` Bjorn Andersson
2019-02-04 15:49 ` Kalle Valo
2019-02-04 15:49 ` Kalle Valo [this message]

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