On Fri, 2010-08-27 at 17:04 +0100, Catalin Marinas wrote: > On Fri, 2010-08-27 at 16:29 +0100, Daniel Walker wrote: > > On Fri, 2010-08-27 at 14:54 +0100, Catalin Marinas wrote: > > > On Wed, 2010-08-25 at 05:57 +0100, Jeff Ohlstein wrote: > > > > From: Daniel Walker <[email protected]> > > > > > > > > ScorpionMP does not have the SMP/nAMP and TLB ops broadcasting bits in > > > > ACTLR. > > > > > > > > Signed-off-by: Daniel Walker <[email protected]> > > > > Signed-off-by: Jeff Ohlstein <[email protected]> > > > > --- > > > > arch/arm/mm/proc-v7.S | 24 ++++++++++++++++++++++++ > > > > 1 files changed, 24 insertions(+), 0 deletions(-) > > > > > > > > diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S > > > > index 7aaf88a..98fd7e5 100644 > > > > --- a/arch/arm/mm/proc-v7.S > > > > +++ b/arch/arm/mm/proc-v7.S > > > > @@ -196,6 +196,7 @@ __v7_setup: > > > > orreq r0, r0, #(1 << 6) | (1 << 0) @ Enable SMP/nAMP mode > > > > and > > > > mcreq p15, 0, r0, c1, c0, 1 @ TLB ops broadcasting > > > > #endif > > > > +__v7_msm_setup: > > > > adr r12, __v7_setup_stack @ the local stack > > > > stmia r12, {r0-r5, r7, r9, r11, lr} > > > > bl v7_flush_dcache_all > > > > > > It may be better to move the generic __v7_setup here and have a specific > > > entry for ARM Ltd cores (mask 0xff0f0000 and value 0x410f0000). > > > > I'm not sure I follow you.. Are you saying there are other cpu's that > > don't need the SMP stuff at the top of __v7_setup ? > > The SMP/nAMP bit is something specific to the ARM11MPCore and Cortex-A9 > processors produced by ARM. If you core doesn't need this, it should use > a default __v7_setup without any additional bits being set. > > I'm not aware of other MP ARM processors produced by other companies > that would require exactly the same bit being set.
So your saying it makes more sense to change the msm entry into the default entry, and make the current default into the ARM11MPCore/Cortex-A9 entry? There's 4 or 5 other cpu's that have SMP but none have had to jump over those bits AFAIK .. Daniel -- Sent by an consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
