diff options
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig | 8 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/Kconfig | 11 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/pic.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/smp.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/Kconfig | 1 |
9 files changed, 32 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 26f861560c5..880b8c1e6e5 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -38,7 +38,9 @@ extern void cpu_die(void); struct smp_ops_t { void (*message_pass)(int cpu, int msg); +#ifdef CONFIG_PPC_SMP_MUXED_IPI void (*cause_ipi)(int cpu, unsigned long data); +#endif int (*probe)(void); int (*kick_cpu)(int nr); void (*setup_cpu)(int nr); diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index fa8e8700064..d76f7d7929b 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -178,6 +178,7 @@ int smp_request_message_ipi(int virq, int msg) return err; } +#ifdef CONFIG_PPC_SMP_MUXED_IPI struct cpu_messages { unsigned long messages; /* current messages bits */ unsigned long data; /* data for cause ipi */ @@ -230,6 +231,7 @@ irqreturn_t smp_ipi_demux(void) } return IRQ_HANDLED; } +#endif /* CONFIG_PPC_SMP_MUXED_IPI */ void smp_send_reschedule(int cpu) { diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 6059053e715..83c704a637b 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -57,6 +57,14 @@ config UDBG_RTAS_CONSOLE depends on PPC_RTAS default n +config PPC_SMP_MUXED_IPI + bool + help + Select this opton if your platform supports SMP and your + interrupt controller provides less than 4 interrupts to each + cpu. This will enable the generic code to multiplex the 4 + messages on to one ipi. + config PPC_UDBG_BEAT bool "BEAT based debug console" depends on PPC_CELLEB diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index a1e623822a3..2165b65876f 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -73,6 +73,7 @@ config PPC_BOOK3S_64 config PPC_BOOK3E_64 bool "Embedded processors" select PPC_FPU # Make it a choice ? + select PPC_SMP_MUXED_IPI endchoice @@ -178,6 +179,7 @@ config FSL_BOOKE config PPC_FSL_BOOK3E bool select FSL_EMB_PERFMON + select PPC_SMP_MUXED_IPI default y if FSL_BOOKE config PTE_64BIT diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig index ea1d3622b41..b57cda3a081 100644 --- a/arch/powerpc/platforms/iseries/Kconfig +++ b/arch/powerpc/platforms/iseries/Kconfig @@ -1,6 +1,7 @@ config PPC_ISERIES bool "IBM Legacy iSeries" depends on PPC64 && PPC_BOOK3S + select PPC_SMP_MUXED_IPI select PPC_INDIRECT_PIO select PPC_INDIRECT_MMIO select PPC_PCI_CHOICE if EXPERT diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig index 1e1a0873e1d..1afd10f6785 100644 --- a/arch/powerpc/platforms/powermac/Kconfig +++ b/arch/powerpc/platforms/powermac/Kconfig @@ -18,4 +18,13 @@ config PPC_PMAC64 select PPC_970_NAP default y - +config PPC_PMAC32_PSURGE + bool "Support for powersurge upgrade cards" if EXPERT + depends on SMP && PPC32 && PPC_PMAC + select PPC_SMP_MUXED_IPI + default y + help + The powersurge cpu boards can be used in the generation + of powermacs that have a socket for an upgradeable cpu card, + including the 7500, 8500, 9500, 9600. Support exists for + both dual and quad socket upgrade cards. diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 2f34ad04029..b706cb3ad99 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -239,7 +239,7 @@ static unsigned int pmac_pic_get_irq(void) unsigned long bits = 0; unsigned long flags; -#ifdef CONFIG_SMP +#ifdef CONFIG_PPC_PMAC32_PSURGE void psurge_smp_message_recv(void); /* IPI's are a hack on the powersurge -- Cort */ @@ -247,7 +247,7 @@ static unsigned int pmac_pic_get_irq(void) psurge_smp_message_recv(); return NO_IRQ_IGNORE; /* ignore, already handled */ } -#endif /* CONFIG_SMP */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ raw_spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_real_irqs; (irq -= 32) >= 0; ) { int i = irq >> 5; diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index a3401071abf..67b6e1432be 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -70,7 +70,7 @@ static void (*pmac_tb_freeze)(int freeze); static u64 timebase; static int tb_req; -#ifdef CONFIG_PPC32 +#ifdef CONFIG_PPC_PMAC32_PSURGE /* * Powersurge (old powermac SMP) support. @@ -420,7 +420,7 @@ struct smp_ops_t psurge_smp_ops = { .give_timebase = smp_psurge_give_timebase, .take_timebase = smp_psurge_take_timebase, }; -#endif /* CONFIG_PPC32 - actually powersurge support */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ /* * Core 99 and later support @@ -980,7 +980,7 @@ void __init pmac_setup_smp(void) of_node_put(np); smp_ops = &core99_smp_ops; } -#ifdef CONFIG_PPC32 +#ifdef CONFIG_PPC_PMAC32_PSURGE else { /* We have to set bits in cpu_possible_mask here since the * secondary CPU(s) aren't in the device tree. Various @@ -993,7 +993,7 @@ void __init pmac_setup_smp(void) set_cpu_possible(cpu, true); smp_ops = &psurge_smp_ops; } -#endif /* CONFIG_PPC32 */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ #ifdef CONFIG_HOTPLUG_CPU ppc_md.cpu_die = pmac_cpu_die; diff --git a/arch/powerpc/sysdev/xics/Kconfig b/arch/powerpc/sysdev/xics/Kconfig index 123b8ddf281..0031eda320c 100644 --- a/arch/powerpc/sysdev/xics/Kconfig +++ b/arch/powerpc/sysdev/xics/Kconfig @@ -1,5 +1,6 @@ config PPC_XICS def_bool n + select PPC_SMP_MUXED_IPI config PPC_ICP_NATIVE def_bool n |