From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] remove the debugging restrictions in devicemaps_init()
Date: Tue, 8 May 2012 08:14:11 +0100 [thread overview]
Message-ID: <20120508071411.GP26481@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.02.1205072340540.21030@xanadu.home>
On Tue, May 08, 2012 at 12:19:30AM -0400, Nicolas Pitre wrote:
> However, the switching itself doesn't involve a full cache flush.
That's where you're wrong. Look at the switch_mm() helpers in proc-*.S.
StrongARM for example calls v4wb_flush_kern_cache_all() here, which needs
the cache flushing mappings to be in place in the _current_ page table.
next prev parent reply other threads:[~2012-05-08 7:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-16 5:44 [PATCH 0/2] improve debugability of early boot of the kernel Nicolas Pitre
2012-03-16 5:44 ` [PATCH 1/2] DEBUG_LL: limit early mapping to the minimum Nicolas Pitre
2012-03-16 5:44 ` [PATCH 2/2] remove the debugging restrictions in devicemaps_init() Nicolas Pitre
2012-05-06 16:30 ` Russell King - ARM Linux
2012-05-08 4:19 ` Nicolas Pitre
2012-05-08 7:14 ` Russell King - ARM Linux [this message]
2012-05-08 16:17 ` Nicolas Pitre
2012-05-12 13:49 ` Russell King - ARM Linux
2012-05-12 16:16 ` Nicolas Pitre
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