From: Arnd Bergmann <arnd@arndb.de>
To: Kevin Cernekee <cernekee@gmail.com>
Cc: f.fainelli@gmail.com, tglx@linutronix.de, jason@lakedaemon.net,
ralf@linux-mips.org, lethal@linux-sh.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
mbizon@freebox.fr, jogo@openwrt.org, linux-mips@linux-mips.org
Subject: Re: [PATCH V2 15/15] irqchip: bcm7120-l2: Enable big endian register accesses on BE kernels
Date: Thu, 30 Oct 2014 10:03:16 +0100 [thread overview]
Message-ID: <2482894.SCbMWLltbW@wuerfel> (raw)
In-Reply-To: <1414635488-14137-16-git-send-email-cernekee@gmail.com>
On Wednesday 29 October 2014 19:18:08 Kevin Cernekee wrote:
>
> + flags = IRQ_GC_INIT_MASK_CACHE;
> + if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
> + flags |= IRQ_GC_BE_IO;
> +
>
As I said before, I think you should take this from a DT property instead
of making it dependent on the CPU endianess. Otherwise things go horribly
wrong e.g. when someone runs a big-endian kernel on one of the ARM
based chips.
Arnd
prev parent reply other threads:[~2014-10-30 9:03 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-30 2:17 [PATCH V2 00/15] genirq endian fixes; bcm7120/brcmstb IRQ updates Kevin Cernekee
2014-10-30 2:17 ` [PATCH V2 01/15] irqchip: Replace irq_reg_{readl,writel} with {readl,writel} Kevin Cernekee
2014-10-30 2:17 ` [PATCH V2 02/15] sh: Eliminate unused irq_reg_{readl,writel} accessors Kevin Cernekee
2014-10-30 9:00 ` Arnd Bergmann
2014-10-30 10:43 ` Thomas Gleixner
2014-10-30 10:48 ` Arnd Bergmann
2014-10-30 15:25 ` Kevin Cernekee
2014-10-30 2:17 ` [PATCH V2 03/15] genirq: Generic chip: Move irq_reg_{readl,writel} accessors into generic-chip.c Kevin Cernekee
2014-10-30 8:43 ` Thomas Gleixner
2014-10-30 9:06 ` Arnd Bergmann
2014-10-30 10:33 ` Thomas Gleixner
2014-10-30 11:50 ` Thomas Gleixner
2014-10-30 2:17 ` [PATCH V2 04/15] genirq: Generic chip: Change irq_reg_{readl,writel} arguments Kevin Cernekee
2014-10-30 2:17 ` [PATCH V2 05/15] genirq: Generic chip: Add big endian I/O accessors Kevin Cernekee
2014-10-30 9:21 ` Arnd Bergmann
2014-10-30 12:30 ` Thomas Gleixner
2014-10-30 12:40 ` Arnd Bergmann
2014-10-30 2:17 ` [PATCH V2 06/15] genirq: Generic chip: Optimize for fixed-endian systems Kevin Cernekee
2014-10-30 4:16 ` Brian Norris
2014-10-30 9:04 ` Arnd Bergmann
2014-10-30 2:18 ` [PATCH V2 07/15] irqchip: brcmstb-l2: Eliminate dependency on ARM code Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 08/15] irqchip: bcm7120-l2: Eliminate bad IRQ check Kevin Cernekee
2014-10-30 11:09 ` Sergei Shtylyov
[not found] ` <54521C65.8060603-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2014-10-30 19:24 ` Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 09/15] irqchip: Remove ARM dependency for bcm7120-l2 and brcmstb-l2 Kevin Cernekee
2014-10-30 11:10 ` Sergei Shtylyov
2014-10-30 11:24 ` Arnd Bergmann
2014-10-30 11:48 ` Sergei Shtylyov
2014-10-30 2:18 ` [PATCH V2 10/15] irqchip: bcm7120-l2: Make sure all register accesses use base+offset Kevin Cernekee
2014-10-30 9:12 ` Arnd Bergmann
2014-10-30 2:18 ` [PATCH V2 11/15] irqchip: bcm7120-l2: Fix missing nibble in gc->unused mask Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 12/15] irqchip: bcm7120-l2: Use gc->mask_cache to simplify suspend/resume functions Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 13/15] irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 14/15] irqchip: Decouple bcm7120-l2 from brcmstb-l2 Kevin Cernekee
2014-10-30 2:18 ` [PATCH V2 15/15] irqchip: bcm7120-l2: Enable big endian register accesses on BE kernels Kevin Cernekee
2014-10-30 9:03 ` Arnd Bergmann [this message]
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