linux-kernel - Re: [PATCH 0/2] Minor fixes for CCMs

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Date:   Thu, 22 Dec 2016 16:26:37 -0800
From:   Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:     Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] Minor fixes for CCMs

On 12/22/2016 06:09 AM, Alexey Brodkin wrote:
> It turned out current implementation of CCM support doesn't work at all.
> There're 2 isseus:
>  * Data/code which is supposed to be in DCCM or ICCM accordingly gets
>    merged in common .data and .text sections so CCMs won't be used
>  * Kerenl will panic on early boot because comparison of CCM sizes
>    is implemented incorrectly

FWIW, for current hsdk bringup I won't recommend to switch them on just yet !

>
> This short series fixes both issues above so CCMs are usable again.
> And both patches indeed should be back-ported to stable kernels.
>
> Alexey Brodkin (2):
>   arc: rename xCCM sections so they are not merged in global .data/.text
>   arc: Fix xCCM size check
>
>  arch/arc/include/asm/linkage.h | 6 +++---
>  arch/arc/kernel/setup.c        | 4 ++--
>  arch/arc/kernel/vmlinux.lds.S  | 8 ++++----
>  3 files changed, 9 insertions(+), 9 deletions(-)
>