diff options
Diffstat (limited to 'arch/mips/mipssim')
| -rw-r--r-- | arch/mips/mipssim/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/mipssim/sim_setup.c | 16 | ||||
| -rw-r--r-- | arch/mips/mipssim/sim_smtc.c (renamed from arch/mips/mipssim/sim_smp.c) | 92 |
3 files changed, 59 insertions, 51 deletions
diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile index 75568b584df..57f43c1c788 100644 --- a/arch/mips/mipssim/Makefile +++ b/arch/mips/mipssim/Makefile @@ -21,6 +21,6 @@ obj-y := sim_platform.o sim_setup.o sim_mem.o sim_time.o sim_int.o \ sim_cmdline.o obj-$(CONFIG_EARLY_PRINTK) += sim_console.o -obj-$(CONFIG_SMP) += sim_smp.o +obj-$(CONFIG_MIPS_MT_SMTC) += sim_smtc.o EXTRA_CFLAGS += -Werror diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c index 452c129d02c..d49fe73426b 100644 --- a/arch/mips/mipssim/sim_setup.c +++ b/arch/mips/mipssim/sim_setup.c @@ -60,6 +60,8 @@ void __init plat_mem_setup(void) #endif } +extern struct plat_smp_ops ssmtc_smp_ops; + void __init prom_init(void) { set_io_port_base(0xbfd00000); @@ -67,8 +69,20 @@ void __init prom_init(void) pr_info("\nLINUX started...\n"); prom_init_cmdline(); prom_meminit(); -} +#ifdef CONFIG_MIPS_MT_SMP + if (cpu_has_mipsmt) + register_smp_ops(&vsmp_smp_ops); + else + register_smp_ops(&up_smp_ops); +#endif +#ifdef CONFIG_MIPS_MT_SMTC + if (cpu_has_mipsmt) + register_smp_ops(&ssmtc_smp_ops); + else + register_smp_ops(&up_smp_ops); +#endif +} static void __init serial_init(void) { diff --git a/arch/mips/mipssim/sim_smp.c b/arch/mips/mipssim/sim_smtc.c index ccbbccac23e..d6e4f656ad1 100644 --- a/arch/mips/mipssim/sim_smp.c +++ b/arch/mips/mipssim/sim_smtc.c @@ -16,7 +16,7 @@ * */ /* - * Simulator Platform-specific hooks for SMP operation + * Simulator Platform-specific hooks for SMTC operation */ #include <linux/kernel.h> #include <linux/sched.h> @@ -29,65 +29,72 @@ #include <asm/processor.h> #include <asm/system.h> #include <asm/mmu_context.h> -#ifdef CONFIG_MIPS_MT_SMTC #include <asm/smtc_ipi.h> -#endif /* CONFIG_MIPS_MT_SMTC */ /* VPE/SMP Prototype implements platform interfaces directly */ -#if !defined(CONFIG_MIPS_MT_SMP) /* * Cause the specified action to be performed on a targeted "CPU" */ -void core_send_ipi(int cpu, unsigned int action) +static void ssmtc_send_ipi_single(int cpu, unsigned int action) { -#ifdef CONFIG_MIPS_MT_SMTC smtc_send_ipi(cpu, LINUX_SMP_IPI, action); -#endif /* CONFIG_MIPS_MT_SMTC */ -/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ + /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ +} + +static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action) +{ + unsigned int i; + for_each_cpu_mask(i, mask) + ssmtc_send_ipi_single(i, action); } /* - * Platform "CPU" startup hook + * Post-config but pre-boot cleanup entry point */ - -void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) +static void __cpuinit ssmtc_init_secondary(void) { -#ifdef CONFIG_MIPS_MT_SMTC - smtc_boot_secondary(cpu, idle); -#endif /* CONFIG_MIPS_MT_SMTC */ + void smtc_init_secondary(void); + + smtc_init_secondary(); } /* - * Post-config but pre-boot cleanup entry point + * SMP initialization finalization entry point */ +static void __cpuinit ssmtc_smp_finish(void) +{ + smtc_smp_finish(); +} -void __cpuinit prom_init_secondary(void) +/* + * Hook for after all CPUs are online + */ +static void ssmtc_cpus_done(void) { -#ifdef CONFIG_MIPS_MT_SMTC - void smtc_init_secondary(void); +} - smtc_init_secondary(); -#endif /* CONFIG_MIPS_MT_SMTC */ +/* + * Platform "CPU" startup hook + */ +static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle) +{ + smtc_boot_secondary(cpu, idle); } -void plat_smp_setup(void) +static void __init ssmtc_smp_setup(void) { -#ifdef CONFIG_MIPS_MT_SMTC if (read_c0_config3() & (1 << 2)) mipsmt_build_cpu_map(0); -#endif /* CONFIG_MIPS_MT_SMTC */ } /* * Platform SMP pre-initialization */ - -void plat_prepare_cpus(unsigned int max_cpus) +static void ssmtc_prepare_cpus(unsigned int max_cpus) { -#ifdef CONFIG_MIPS_MT_SMTC /* * As noted above, we can assume a single CPU for now * but it may be multithreaded. @@ -96,28 +103,15 @@ void plat_prepare_cpus(unsigned int max_cpus) if (read_c0_config3() & (1 << 2)) { mipsmt_prepare_cpus(); } -#endif /* CONFIG_MIPS_MT_SMTC */ } -/* - * SMP initialization finalization entry point - */ - -void __cpuinit prom_smp_finish(void) -{ -#ifdef CONFIG_MIPS_MT_SMTC - smtc_smp_finish(); -#endif /* CONFIG_MIPS_MT_SMTC */ -} - -/* - * Hook for after all CPUs are online - */ - -void prom_cpus_done(void) -{ -#ifdef CONFIG_MIPS_MT_SMTC - -#endif /* CONFIG_MIPS_MT_SMTC */ -} -#endif /* CONFIG_MIPS32R2_MT_SMP */ +struct plat_smp_ops ssmtc_smp_ops = { + .send_ipi_single = ssmtc_send_ipi_single, + .send_ipi_mask = ssmtc_send_ipi_mask, + .init_secondary = ssmtc_init_secondary, + .smp_finish = ssmtc_smp_finish, + .cpus_done = ssmtc_cpus_done, + .boot_secondary = ssmtc_boot_secondary, + .smp_setup = ssmtc_smp_setup, + .prepare_cpus = ssmtc_prepare_cpus, +}; |