From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCHv1 for soc 4/5] arm: Add v7_invalidate_l1 to cache-v7.S
Date: Fri, 25 Jan 2013 23:17:48 +0530 [thread overview]
Message-ID: <5102C544.6010600@ti.com> (raw)
In-Reply-To: <1359130838.32148.5.camel@linux-builds1>
On Friday 25 January 2013 09:50 PM, Dinh Nguyen wrote:
> Hi Santosh,
>
> On Fri, 2013-01-25 at 13:43 +0530, Santosh Shilimkar wrote:
>> On Friday 25 January 2013 06:30 AM, dinguyen at altera.com wrote:
>>> From: Dinh Nguyen <dinguyen@altera•com>
>>>
>>> mach-socfpga is another platform that needs to use
>>> v7_invalidate_l1 to bringup additional cores. There was a comment that
>>> the ideal place for v7_invalidate_l1 should be in arm/mm/cache-v7.S
>>>
>>> Signed-off-by: Dinh Nguyen <dinguyen@altera•com>
>>> Cc: Arnd Bergmann <arnd@arndb•de>
>>> Cc: Russell King <linux@arm•linux.org.uk>
>>> Cc: Olof Johansson <olof@lixom•net>
>>> Cc: Thomas Gleixner <tglx@linutronix•de>
>>> Cc: Rob Herring <rob.herring@calxeda•com>
>>> Cc: Sascha Hauer <kernel@pengutronix•de>
>>> Cc: Simon Horman <horms@verge•net.au>
>>> Cc: Magnus Damm <magnus.damm@gmail•com>
>>> Cc: Stephen Warren <swarren@wwwdotorg•org>
>>> Cc: Pavel Machek <pavel@denx•de>
>>> ---
>>> arch/arm/mach-imx/headsmp.S | 47 -------------------------------------
>>> arch/arm/mach-shmobile/headsmp.S | 48 --------------------------------------
>>> arch/arm/mach-tegra/headsmp.S | 43 ----------------------------------
>>> arch/arm/mm/cache-v7.S | 47 +++++++++++++++++++++++++++++++++++++
>>> 4 files changed, 47 insertions(+), 138 deletions(-)
>>>
>> Does yor kernel skips the decompresser. Am just curious about
>> what you describe above since you should see the issue already
>> at decompresser. Your boot loader is expected to clean and
>> invalidating the caches before jumping into the kernel.
>
> This is for bringing up the 2nd core after the main CPU is already
> alive. Indeed, I did see this issue when the main CPU was coming up and
> have changed the bootloader to clean and invalidate the caches.
>
Ahh. I understand it now.
Regards
Santosh
next prev parent reply other threads:[~2013-01-25 17:47 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-25 1:00 [PATCHv1 for soc 0/5] Enabling socfpga on hardware dinguyen at altera.com
2013-01-25 1:00 ` [PATCHv1 for soc 1/5] arm: socfpga: Add new device tree source for actual socfpga HW dinguyen at altera.com
2013-01-25 14:22 ` Pavel Machek
2013-01-25 16:18 ` Dinh Nguyen
2013-01-28 7:12 ` Olof Johansson
2013-01-25 1:00 ` [PATCHv1 for soc 2/5] arm: socfpga: Add clock entries to socfpga.dtsi dinguyen at altera.com
2013-01-28 7:13 ` Olof Johansson
2013-01-28 11:19 ` Pavel Machek
2013-01-25 1:00 ` [PATCHv1 for soc 3/5] arm: socfpga: Add entries to enable make dtbs socfpga dinguyen at altera.com
2013-01-25 15:13 ` Pavel Machek
2013-01-25 16:21 ` Dinh Nguyen
2013-01-25 1:00 ` [PATCHv1 for soc 4/5] arm: Add v7_invalidate_l1 to cache-v7.S dinguyen at altera.com
2013-01-25 4:15 ` Simon Horman
2013-01-25 4:35 ` Simon Horman
2013-01-25 16:18 ` Dinh Nguyen
2013-01-25 4:42 ` Stephen Warren
2013-01-28 10:45 ` Pavel Machek
2013-01-28 17:27 ` Stephen Warren
2013-01-28 17:35 ` Dinh Nguyen
2013-01-25 8:13 ` Santosh Shilimkar
2013-01-25 16:20 ` Dinh Nguyen
2013-01-25 17:47 ` Santosh Shilimkar [this message]
2013-01-25 15:49 ` Pavel Machek
2013-01-25 16:24 ` Dinh Nguyen
2013-01-25 18:05 ` Pavel Machek
2013-01-28 13:13 ` Shawn Guo
2013-01-25 1:00 ` [PATCHv1 for soc 5/5] arm: socfpga: Add SMP support for actual socfpga harware dinguyen at altera.com
2013-01-25 17:55 ` Pavel Machek
2013-01-25 21:02 ` Dinh Nguyen
2013-01-26 20:59 ` Pavel Machek
2013-01-28 19:31 ` Pavel Machek
2013-01-28 19:36 ` [RFC] socfpga: make function static Pavel Machek
2013-01-29 18:43 ` [PATCHv1 for soc 5/5] arm: socfpga: Add SMP support for actual socfpga harware Pavel Machek
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