From 87353d8ac39c52784da605ecbe965ecdfad609ad Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 19 Nov 2007 12:23:51 +0000 Subject: [MIPS] SMP: Call platform methods via ops structure. Signed-off-by: Ralf Baechle --- arch/mips/mipssim/Makefile | 2 +- arch/mips/mipssim/sim_setup.c | 16 +++++- arch/mips/mipssim/sim_smp.c | 123 ------------------------------------------ arch/mips/mipssim/sim_smtc.c | 117 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 133 insertions(+), 125 deletions(-) delete mode 100644 arch/mips/mipssim/sim_smp.c create mode 100644 arch/mips/mipssim/sim_smtc.c (limited to 'arch/mips/mipssim') diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile index 75568b584df4..57f43c1c7882 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 452c129d02c1..d49fe73426b7 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_smp.c deleted file mode 100644 index ccbbccac23ef..000000000000 --- a/arch/mips/mipssim/sim_smp.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - */ -/* - * Simulator Platform-specific hooks for SMP operation - */ -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#ifdef CONFIG_MIPS_MT_SMTC -#include -#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) -{ -#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 */ - -} - -/* - * Platform "CPU" startup hook - */ - -void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) -{ -#ifdef CONFIG_MIPS_MT_SMTC - smtc_boot_secondary(cpu, idle); -#endif /* CONFIG_MIPS_MT_SMTC */ -} - -/* - * Post-config but pre-boot cleanup entry point - */ - -void __cpuinit prom_init_secondary(void) -{ -#ifdef CONFIG_MIPS_MT_SMTC - void smtc_init_secondary(void); - - smtc_init_secondary(); -#endif /* CONFIG_MIPS_MT_SMTC */ -} - -void plat_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) -{ -#ifdef CONFIG_MIPS_MT_SMTC - /* - * As noted above, we can assume a single CPU for now - * but it may be multithreaded. - */ - - 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 */ diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c new file mode 100644 index 000000000000..d6e4f656ad14 --- /dev/null +++ b/arch/mips/mipssim/sim_smtc.c @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + */ +/* + * Simulator Platform-specific hooks for SMTC operation + */ +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +/* VPE/SMP Prototype implements platform interfaces directly */ + +/* + * Cause the specified action to be performed on a targeted "CPU" + */ + +static void ssmtc_send_ipi_single(int cpu, unsigned int action) +{ + smtc_send_ipi(cpu, LINUX_SMP_IPI, action); + /* "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); +} + +/* + * Post-config but pre-boot cleanup entry point + */ +static void __cpuinit ssmtc_init_secondary(void) +{ + void smtc_init_secondary(void); + + smtc_init_secondary(); +} + +/* + * SMP initialization finalization entry point + */ +static void __cpuinit ssmtc_smp_finish(void) +{ + smtc_smp_finish(); +} + +/* + * Hook for after all CPUs are online + */ +static void ssmtc_cpus_done(void) +{ +} + +/* + * Platform "CPU" startup hook + */ +static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle) +{ + smtc_boot_secondary(cpu, idle); +} + +static void __init ssmtc_smp_setup(void) +{ + if (read_c0_config3() & (1 << 2)) + mipsmt_build_cpu_map(0); +} + +/* + * Platform SMP pre-initialization + */ +static void ssmtc_prepare_cpus(unsigned int max_cpus) +{ + /* + * As noted above, we can assume a single CPU for now + * but it may be multithreaded. + */ + + if (read_c0_config3() & (1 << 2)) { + mipsmt_prepare_cpus(); + } +} + +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, +}; -- cgit v1.2.1