From: Ralf Baechle <ralf@linux-mips.org>
To: Kaz Kylheku <KKylheku@zeugmasystems.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>, linux-mips@linux-mips.org
Subject: Re: Broadcom Swarm support
Date: Sat, 27 Jun 2009 16:49:02 +0100 [thread overview]
Message-ID: <20090627154902.GA18139@linux-mips.org> (raw)
In-Reply-To: <DDFD17CC94A9BD49A82147DDF7D545C501C3539B@exchange.ZeugmaSystems.local>
On Wed, Jun 24, 2009 at 03:18:24PM -0700, Kaz Kylheku wrote:
> +void __flush_icache_page(struct vm_area_struct *vma, struct page *page)
> +{
> + if (vma->vm_flags & VM_EXEC)
> + flush_icache_range((unsigned long) page_address(page),
> PAGE_SIZE);
> +}
Flush_icache_range takes two arguments, start and end address. Both
addresses are the virtual addresses at which the code will run. Iow both
arguments are wrong. The result is that for start address values normally
passed to flush_icache_range it will optimize the flush into a full cache
flush of I-cache and D-cache - iow you're lucky.
Ralf
next prev parent reply other threads:[~2009-06-27 15:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-24 6:34 Broadcom Swarm support Aurelien Jarno
2009-06-24 22:18 ` Kaz Kylheku
2009-06-24 22:18 ` Kaz Kylheku
2009-06-25 1:48 ` icache flushing (Re: Broadcom Swarm support) Atsushi Nemoto
2009-06-26 21:19 ` Broadcom Swarm support Aurelien Jarno
2009-06-26 23:24 ` Ralf Baechle
2009-06-27 5:10 ` Aurelien Jarno
2009-06-27 9:14 ` Ralf Baechle
2009-06-27 13:59 ` Atsushi Nemoto
2009-06-27 15:48 ` Ralf Baechle
2009-06-27 16:09 ` Atsushi Nemoto
2009-06-27 16:11 ` Atsushi Nemoto
2009-06-29 19:08 ` Ralf Baechle
2009-06-30 14:00 ` Atsushi Nemoto
2009-07-06 13:56 ` Atsushi Nemoto
2009-06-27 15:49 ` Ralf Baechle [this message]
2009-06-30 17:10 ` Kaz Kylheku
2009-06-30 17:10 ` Kaz Kylheku
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