From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Alexey Brodkin <Alexey.Brodkin@synopsys.com>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/2] Minor fixes for CCMs
Date: Thu, 22 Dec 2016 16:26:37 -0800 [thread overview]
Message-ID: <81af855f-4847-5115-6f3e-49bb005b0a24@synopsys.com> (raw)
In-Reply-To: <1482415750-5471-1-git-send-email-abrodkin@synopsys.com>
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(-)
>
WARNING: multiple messages have this Message-ID (diff)
From: Vineet.Gupta1@synopsys.com (Vineet Gupta)
To: linux-snps-arc@lists.infradead.org
Subject: [PATCH 0/2] Minor fixes for CCMs
Date: Thu, 22 Dec 2016 16:26:37 -0800 [thread overview]
Message-ID: <81af855f-4847-5115-6f3e-49bb005b0a24@synopsys.com> (raw)
In-Reply-To: <1482415750-5471-1-git-send-email-abrodkin@synopsys.com>
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(-)
>
next prev parent reply other threads:[~2016-12-23 0:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-22 14:09 [PATCH 0/2] Minor fixes for CCMs Alexey Brodkin
2016-12-22 14:09 ` Alexey Brodkin
2016-12-22 14:09 ` [PATCH 1/2] arc: rename xCCM sections so they are not merged in global .data/.text Alexey Brodkin
2016-12-22 14:09 ` Alexey Brodkin
2016-12-23 0:25 ` Vineet Gupta
2016-12-23 0:25 ` Vineet Gupta
2017-01-09 15:08 ` Alexey Brodkin
2017-01-09 15:08 ` Alexey Brodkin
2016-12-22 14:09 ` [PATCH 2/2] arc: Fix xCCM size check Alexey Brodkin
2016-12-22 14:09 ` Alexey Brodkin
2016-12-23 0:34 ` Vineet Gupta
2016-12-23 0:34 ` Vineet Gupta
2017-01-09 15:12 ` Alexey Brodkin
2017-01-09 15:12 ` Alexey Brodkin
2016-12-23 0:26 ` Vineet Gupta [this message]
2016-12-23 0:26 ` [PATCH 0/2] Minor fixes for CCMs Vineet Gupta
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