From: santosh.shilimkar@ti.com (Santosh Shilimkar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] ARM: l2x0: Errata fix for flush by Way operation can cause data corruption
Date: Sat, 12 Feb 2011 23:29:29 +0530 [thread overview]
Message-ID: <13596bec9184b117d6a1d02da8e017bf@mail.gmail.com> (raw)
In-Reply-To: <AANLkTimkqZ5datA+7shggbWz3+j=TDg5beUkQK=b1AmK@mail.gmail.com>
> -----Original Message-----
> From: Andrei Warkentin [mailto:andreiw at motorola.com]
> Sent: Saturday, February 12, 2011 11:20 PM
> To: Santosh Shilimkar
> Cc: linux-omap at vger.kernel.org; khilman at ti.com; tony at atomide.com;
> linux-arm-kernel at lists.infradead.org; Catalin Marinas
> Subject: Re: [PATCH 3/5] ARM: l2x0: Errata fix for flush by Way
> operation can cause data corruption
>
[....]
>
> Can these PL310 errata fixes be made more generic? PL310 is present
> in
> non-OMAP platforms too, which lack the TI hypervisor. And these
> platforms might have the same PL310 rev, and suffer the same
> glitches.
> While ideally there is some kind of hypervisor_ops to modify the
> protected register, at the very least there should be the generic
> debug_write handling the "I can write all PL310 regs" case. If
> you're interested I have a patch someplace that tried to do this,
> hopefully I can still find it.
They are kind of generic. If you look at it, the only change
Which is arch specific is the implementation of "debug_writel" function.
Today this code is not in generic PL310 code, but
OMAP specific.
May be we can make this as exported function pointer, which
arch's can populate.
Will that work for you ?
Regards,
Santosh
next prev parent reply other threads:[~2011-02-12 17:59 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-12 11:29 [PATCH 0/5] ARM: omap4 related fixes for 2.6.39 Santosh Shilimkar
2011-02-12 11:29 ` [PATCH 1/5] ARM: smp: Select local timers vs dummy timer support runtime Santosh Shilimkar
2011-02-15 4:13 ` David Brown
2011-02-15 4:15 ` David Brown
2011-02-16 12:45 ` Santosh Shilimkar
2011-02-20 11:03 ` Russell King - ARM Linux
2011-02-20 11:07 ` [PATCH 1/5] ARM: smp: Select local timers vs dummy timersupport runtime Santosh Shilimkar
2011-02-23 16:36 ` Russell King - ARM Linux
2011-02-23 16:38 ` [PATCH 1/5] ARM: smp: Select local timers vs dummytimersupport runtime Santosh Shilimkar
2011-02-23 17:58 ` Santosh Shilimkar
2011-02-23 19:03 ` Russell King - ARM Linux
2011-02-23 19:11 ` [PATCH 1/5] ARM: smp: Select local timers vs dummytimersupportruntime Santosh Shilimkar
2011-02-23 19:55 ` Russell King - ARM Linux
2011-02-23 20:04 ` [PATCH 1/5] ARM: smp: Select local timers vsdummytimersupportruntime Santosh Shilimkar
2011-02-12 11:29 ` [PATCH 2/5] omap4: Enable ARM local timers with OMAP4430 es1.0 exception Santosh Shilimkar
2011-02-14 21:08 ` Tony Lindgren
2011-02-18 18:11 ` Santosh Shilimkar
2011-02-12 11:29 ` [PATCH 3/5] ARM: l2x0: Errata fix for flush by Way operation can cause data corruption Santosh Shilimkar
2011-02-12 17:50 ` Andrei Warkentin
2011-02-12 17:59 ` Santosh Shilimkar [this message]
2011-02-12 23:17 ` Andrei Warkentin
2011-02-14 5:08 ` Santosh Shilimkar
2011-02-14 19:33 ` Andrei Warkentin
2011-02-14 21:06 ` Andrei Warkentin
2011-02-15 7:14 ` Santosh Shilimkar
2011-02-15 9:10 ` Andrei Warkentin
2011-02-15 9:30 ` Santosh Shilimkar
2011-02-16 12:32 ` Santosh Shilimkar
2011-02-16 15:53 ` Catalin Marinas
2011-02-16 15:58 ` Santosh Shilimkar
2011-02-18 12:02 ` Santosh Shilimkar
2011-02-12 11:29 ` [PATCH 4/5] omap2plus: omap4: Set NR_CPU to 2 instead of default 4 Santosh Shilimkar
2011-02-14 21:09 ` Tony Lindgren
2011-02-12 11:29 ` [PATCH 5/5] omap4: Remove 'FIXME: omap44xx_sram_init not implemented' Santosh Shilimkar
2011-02-14 21:09 ` Tony Lindgren
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