linux-kernel - Re: [PATCH 1/2] Revert "ARM: OMAP4+: CPUidle: Deprecate use of omap4_mpuss_read_prev_context

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <525FEA03.50407@ti.com>
Date:	Thu, 17 Oct 2013 09:45:39 -0400
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	Grygorii Strashko <grygorii.strashko@...com>
CC:	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>,
	open list <linux-kernel@...r.kernel.org>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	Kevin Hilman <khilman@...aro.org>,
	Taras Kondratiuk <taras.kondratiuk@...aro.org>
Subject: Re: [PATCH 1/2] Revert "ARM: OMAP4+: CPUidle: Deprecate use of omap4_mpuss_read_prev_context_state()"

On Thursday 17 October 2013 05:24 AM, Grygorii Strashko wrote:
> The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859
> "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC control register change."
> need to be applied not only when system is booting, but when MPU hits OSWR state through CPUIdle too.
> 
> Unfortunately, commit "ARM: OMAP4+: CPUidle: Deprecate use of
> omap4_mpuss_read_prev_context_state()" prevents us from implementing workaround
> for this ROM code bug, because it should be applied only (and only)
> when MPU really hits OSWR and its was lost context.
> 
> Hence revert commit e7457253494fff660a72bc0cedeee97491ccd173
> "ARM: OMAP4+: CPUidle: Deprecate use of omap4_mpuss_read_prev_context_state()".
> 
> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
> Cc: Kevin Hilman <khilman@...aro.org>
> Reported-and-Tested-by: Taras Kondratiuk <taras.kondratiuk@...aro.org>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
> ---
NAK.. Lets not add this which will make the code
movement to drivers/idle difficult. This can be handled..
See comments on 2/2.

Regards,
Santosh

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/