From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 3/6] ARM: U8500 core machine support
Date: Sun, 19 Dec 2010 11:09:13 +0000 [thread overview]
Message-ID: <20101219110913.GA23979@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1259279756.13327.72.camel@vinay-desktop>
... going back to this patch...
On Fri, Nov 27, 2009 at 05:25:56AM +0530, srinidhi kasagar wrote:
> +/*
> + * U8500 specific entry point for secondary CPUs.
> + */
> +ENTRY(u8500_secondary_startup)
> + mrc p15, 0, r0, c0, c0, 5
> + and r0, r0, #15
> + adr r4, 1f
> + ldmia r4, {r5, r6}
> + sub r4, r4, r5
> + add r6, r6, r4
> + dsb
Can you please explain why you added a dsb here, whereas most other
platforms don't require it?
> +pen: ldr r7, [r6]
> + cmp r7, r0
> + bne pen
> +
> + /*
> + * we've been released from the holding pen: secondary_stack
> + * should now contain the SVC stack for this core
> + */
> + b secondary_startup
> +
> +1: .long .
> + .long pen_release
next prev parent reply other threads:[~2010-12-19 11:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 23:55 [PATCH v4 3/6] ARM: U8500 core machine support srinidhi kasagar
2010-12-19 11:09 ` Russell King - ARM Linux [this message]
2010-12-20 4:47 ` Srinidhi KASAGAR
2010-12-20 17:08 ` Russell King - ARM Linux
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