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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-06-18 16:26:52 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-26 01:48:56 -0500 |
| commit | fc4033b2f8b1482022bff3d05505a1b1631bb6de (patch) | |
| tree | c84b275968011911d8c96acebe89aa2dd92323bf /arch/powerpc/kernel/entry_32.S | |
| parent | 3dfa8773674e16f95f70a0e631e80c69390d04d7 (diff) | |
| download | op-kernel-dev-fc4033b2f8b1482022bff3d05505a1b1631bb6de.zip op-kernel-dev-fc4033b2f8b1482022bff3d05505a1b1631bb6de.tar.gz | |
powerpc/85xx: add DOZE/NAP support for e500 core
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>
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index fe21674..ab2d62f 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -176,14 +176,14 @@ transfer_to_handler: cmplw r1,r9 /* if r1 <= ksp_limit */ ble- stack_ovf /* then the kernel stack overflowed */ 5: -#ifdef CONFIG_6xx +#if defined(CONFIG_6xx) || defined(CONFIG_E500) rlwinm r9,r1,0,0,31-THREAD_SHIFT tophys(r9,r9) /* check local flags */ lwz r12,TI_LOCAL_FLAGS(r9) mtcrf 0x01,r12 bt- 31-TLF_NAPPING,4f bt- 31-TLF_SLEEPING,7f -#endif /* CONFIG_6xx */ +#endif /* CONFIG_6xx || CONFIG_E500 */ .globl transfer_to_handler_cont transfer_to_handler_cont: 3: @@ -196,10 +196,10 @@ transfer_to_handler_cont: SYNC RFI /* jump to handler, enable MMU */ -#ifdef CONFIG_6xx +#if defined (CONFIG_6xx) || defined(CONFIG_E500) 4: rlwinm r12,r12,0,~_TLF_NAPPING stw r12,TI_LOCAL_FLAGS(r9) - b power_save_6xx_restore + b power_save_ppc32_restore 7: rlwinm r12,r12,0,~_TLF_SLEEPING stw r12,TI_LOCAL_FLAGS(r9) |
