diff options
| author | Zhao Chenhui <chenhui.zhao@freescale.com> | 2012-07-20 20:42:36 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2012-09-12 14:57:08 -0500 |
| commit | d0832a75075b1119635e0f48549e378040cf5e67 (patch) | |
| tree | 9d835dba5b7663517ea08cbde0b9b694614ba704 /arch/powerpc/include | |
| parent | bf34526374a334ddfafaed73b0d8bf7eb4dea833 (diff) | |
powerpc/85xx: add HOTPLUG_CPU support
Add support to disable and re-enable individual cores at runtime on
MPC85xx/QorIQ SMP machines. Currently support e500v1/e500v2 core.
MPC85xx machines use ePAPR spin-table in boot page for CPU kick-off. This
patch uses the boot page from bootloader to boot core at runtime. It
supports 32-bit and 36-bit physical address.
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/cacheflush.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h index ab9e402518e8..b843e35122e8 100644 --- a/arch/powerpc/include/asm/cacheflush.h +++ b/arch/powerpc/include/asm/cacheflush.h @@ -30,6 +30,8 @@ extern void flush_dcache_page(struct page *page); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) +extern void __flush_disable_L1(void); + extern void __flush_icache_range(unsigned long, unsigned long); static inline void flush_icache_range(unsigned long start, unsigned long stop) { diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index ce8e2bdf84ed..e807e9d8e3f7 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -191,6 +191,7 @@ extern unsigned long __secondary_hold_spinloop; extern unsigned long __secondary_hold_acknowledge; extern char __secondary_hold; +extern void __early_start(void); #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ |