From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh.shilimkar@ti.com (Santosh Shilimkar) Date: Mon, 17 Jan 2011 18:01:31 +0530 Subject: [PATCH] ARM: smp: Fix Unknown IPI message 0x1 In-Reply-To: <1295267193.21557.14.camel@e102109-lin.cambridge.arm.com> References: <1295265395-28485-1-git-send-email-santosh.shilimkar@ti.com> <20110117120104.GB20615@n2100.arm.linux.org.uk> <72ca984700f139fea98558783dde38f3@mail.gmail.com> <20110117121951.GC20615@n2100.arm.linux.org.uk> <1295267193.21557.14.camel@e102109-lin.cambridge.arm.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > -----Original Message----- > From: Catalin Marinas [mailto:catalin.marinas at arm.com] > Sent: Monday, January 17, 2011 5:57 PM > To: Russell King - ARM Linux > Cc: Santosh Shilimkar; linux-arm-kernel at lists.infradead.org > Subject: Re: [PATCH] ARM: smp: Fix Unknown IPI message 0x1 > > On Mon, 2011-01-17 at 12:19 +0000, Russell King - ARM Linux wrote: > > On Mon, Jan 17, 2011 at 05:38:11PM +0530, Santosh Shilimkar wrote: > > > This should be ok. May be Catalin can comment on choice of SGI1 > in > > > generic smp_cross_call(). > > > > It's something that came from ARMs early SMP work (in 2002 iirc), > and > > was carried forward. What I don't know is whether there was any > boot > > protocol documentation produced which said "you will wait for any > SGI" > > or "you will wait for SGI1". > > At least on the ARM Ltd platforms, the boot monitor waits for any > interrupt (it is in WFI). I can't tell about other platforms. > Same for OMAP4. Any SGI will do. Regards, Santosh