diff options
| author | Chen-Hui Zhao <chenhui.zhao@freescale.com> | 2012-11-20 18:15:21 (GMT) |
|---|---|---|
| committer | Fleming Andrew-AFLEMING <AFLEMING@freescale.com> | 2013-03-26 23:15:06 (GMT) |
| commit | 924f74a23a2ccce8ecb23155f2f9535fb8f7ab69 (patch) | |
| tree | 59c90fb1e4a70ff06ae168859b6953d095d82742 /arch/powerpc/include | |
| parent | fe0346a4763ebf80c544f4fedaf073fdbf9af92d (diff) | |
| download | linux-fsl-qoriq-924f74a23a2ccce8ecb23155f2f9535fb8f7ab69.tar.xz | |
powerpc/smp: add cpu hotplug support for e6500
* Only if two threads of one core are offline, the core can
enter PH20 state.
* Clear PH20 bits before core reset, or core will not restart.
* Introduced a variable l2cache_type in the struce cpu_spec to
indentify the type of L2 cache.
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Change-Id: I82d170684290ee743c2c9cf5d445f50ff5422030
Reviewed-on: http://git.am.freescale.net:8181/563
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 3b8f065..b7d2747 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -33,6 +33,13 @@ enum powerpc_pmc_type { PPC_PMC_G4 = 3, }; +enum powerpc_l2cache_type { + PPC_L2_CACHE_DEFAULT = 0, + PPC_L2_CACHE_CORE = 1, /* L2 cache used exclusively by one core */ + PPC_L2_CACHE_CLUSTER = 2, /* L2 cache shared by a core cluster */ + PPC_L2_CACHE_SOC = 3, /* L2 cache shared by all cores */ +}; + struct pt_regs; extern int machine_check_generic(struct pt_regs *regs); @@ -58,6 +65,9 @@ struct cpu_spec { unsigned int icache_bsize; unsigned int dcache_bsize; + /* L2 cache type */ + enum powerpc_l2cache_type l2cache_type; + /* number of performance monitor counters */ unsigned int num_pmcs; enum powerpc_pmc_type pmc_type; |