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It is wrongly using undefined CONFIG_E500MC.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
e500mc cannot doze or nap due to an erratum (as well as having a
different mechanism than previous e500), but it has a "wait" instruction
that is similar to doze.
On 64-bit, due to the soft-irq-disable mechanism, the existing
book3e_idle should be used instead.
Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The calculation to get TI_CPU based off of SPRG3 was just plain wrong,
meaning that we were getting garbage for the CPU number on 6xx/G3/G4
based SMP boxes in this code.
Just offset off the stack pointer (to get to thread_info) like all the
other references to TI_CPU do.
This was pointed out by Chen Gong <G.Chen@freescale.com>
[paulus@samba.org - use rlwinm r12,r11,... instead of
rlwinm r12,r1,...; tophys()]
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
If we have an L2CSR register (e500mc) we need to flush the L2 before going
to nap. We use the HW flush mechanism provided in that register.
The code reuses the CPU_FTR_604_PERF_MON bit as it is no longer used by
any code in the kernel. Additionally we didn't reuse the exist L2CR
feature bit as this is intended for the 7xxx L2CR register and L2CSR
is part of the new Freescale "Book-E" registers.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The e500 core enter DOZE/NAP power-saving modes when the core go to
cpu_idle routine.
The power management default running mode is DOZE, If the user
echo 1 > /proc/sys/kernel/powersave-nap
the system will change to NAP running mode.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
