diff options
Diffstat (limited to 'arch/mips/sibyte')
| -rw-r--r-- | arch/mips/sibyte/bcm1480/smp.c | 101 | ||||
| -rw-r--r-- | arch/mips/sibyte/cfe/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/sibyte/cfe/setup.c | 11 | ||||
| -rw-r--r-- | arch/mips/sibyte/cfe/smp.c | 110 | ||||
| -rw-r--r-- | arch/mips/sibyte/sb1250/smp.c | 100 |
5 files changed, 198 insertions, 125 deletions
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index 436ba78..183c460 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c @@ -23,6 +23,7 @@ #include <asm/mmu_context.h> #include <asm/io.h> +#include <asm/fw/cfe/cfe_api.h> #include <asm/sibyte/sb1250.h> #include <asm/sibyte/bcm1480_regs.h> #include <asm/sibyte/bcm1480_int.h> @@ -67,28 +68,114 @@ void __cpuinit bcm1480_smp_init(void) change_c0_status(ST0_IM, imask); } -void __cpuinit bcm1480_smp_finish(void) +/* + * These are routines for dealing with the sb1250 smp capabilities + * independent of board/firmware + */ + +/* + * Simple enough; everything is set up, so just poke the appropriate mailbox + * register, and we should be set + */ +static void bcm1480_send_ipi_single(int cpu, unsigned int action) +{ + __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]); +} + +static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action) +{ + unsigned int i; + + for_each_cpu_mask(i, mask) + bcm1480_send_ipi_single(i, action); +} + +/* + * Code to run on secondary just after probing the CPU + */ +static void __cpuinit bcm1480_init_secondary(void) +{ + extern void bcm1480_smp_init(void); + + bcm1480_smp_init(); +} + +/* + * Do any tidying up before marking online and running the idle + * loop + */ +static void __cpuinit bcm1480_smp_finish(void) { extern void sb1480_clockevent_init(void); sb1480_clockevent_init(); local_irq_enable(); + bcm1480_smp_finish(); } /* - * These are routines for dealing with the sb1250 smp capabilities - * independent of board/firmware + * Final cleanup after all secondaries booted */ +static void bcm1480_cpus_done(void) +{ +} /* - * Simple enough; everything is set up, so just poke the appropriate mailbox - * register, and we should be set + * Setup the PC, SP, and GP of a secondary processor and start it + * running! */ -void core_send_ipi(int cpu, unsigned int action) +static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle) { - __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]); + int retval; + + retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, + __KSTK_TOS(idle), + (unsigned long)task_thread_info(idle), 0); + if (retval != 0) + printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); } +/* + * Use CFE to find out how many CPUs are available, setting up + * phys_cpu_present_map and the logical/physical mappings. + * XXXKW will the boot CPU ever not be physical 0? + * + * Common setup before any secondaries are started + */ +static void __init bcm1480_smp_setup(void) +{ + int i, num; + + cpus_clear(phys_cpu_present_map); + cpu_set(0, phys_cpu_present_map); + __cpu_number_map[0] = 0; + __cpu_logical_map[0] = 0; + + for (i = 1, num = 0; i < NR_CPUS; i++) { + if (cfe_cpu_stop(i) == 0) { + cpu_set(i, phys_cpu_present_map); + __cpu_number_map[i] = ++num; + __cpu_logical_map[num] = i; + } + } + printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); +} + +static void __init bcm1480_prepare_cpus(unsigned int max_cpus) +{ +} + +struct plat_smp_ops bcm1480_smp_ops = { + .send_ipi_single = bcm1480_send_ipi_single, + .send_ipi_mask = bcm1480_send_ipi_mask, + .init_secondary = bcm1480_init_secondary, + .smp_finish = bcm1480_smp_finish, + .cpus_done = bcm1480_cpus_done, + .boot_secondary = bcm1480_boot_secondary, + .smp_setup = bcm1480_smp_setup, + .prepare_cpus = bcm1480_prepare_cpus, +}; + void bcm1480_mailbox_interrupt(void) { int cpu = smp_processor_id(); diff --git a/arch/mips/sibyte/cfe/Makefile b/arch/mips/sibyte/cfe/Makefile index a121493..02b32e1 100644 --- a/arch/mips/sibyte/cfe/Makefile +++ b/arch/mips/sibyte/cfe/Makefile @@ -1,3 +1,2 @@ lib-y = setup.o -lib-$(CONFIG_SMP) += smp.o lib-$(CONFIG_SIBYTE_CFE_CONSOLE) += console.o diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c index dbd6e6f..50d7c05 100644 --- a/arch/mips/sibyte/cfe/setup.c +++ b/arch/mips/sibyte/cfe/setup.c @@ -28,6 +28,7 @@ #include <asm/bootinfo.h> #include <asm/reboot.h> #include <asm/sibyte/board.h> +#include <asm/smp-ops.h> #include <asm/fw/cfe/cfe_api.h> #include <asm/fw/cfe/cfe_error.h> @@ -232,6 +233,9 @@ static int __init initrd_setup(char *str) #endif +extern struct plat_smp_ops sb_smp_ops; +extern struct plat_smp_ops bcm1480_smp_ops; + /* * prom_init is called just after the cpu type is determined, from setup_arch() */ @@ -340,6 +344,13 @@ void __init prom_init(void) arcs_cmdline[CL_SIZE-1] = 0; prom_meminit(); + +#if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250) + register_smp_ops(&sb_smp_ops); +#endif +#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) + register_smp_ops(&bcm1480_smp_ops); +#endif } void __init prom_free_prom_memory(void) diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c deleted file mode 100644 index 534a629..0000000 --- a/arch/mips/sibyte/cfe/smp.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that 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. - */ - -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <asm/processor.h> - -#include <asm/fw/cfe/cfe_api.h> -#include <asm/fw/cfe/cfe_error.h> - -/* - * Use CFE to find out how many CPUs are available, setting up - * phys_cpu_present_map and the logical/physical mappings. - * XXXKW will the boot CPU ever not be physical 0? - * - * Common setup before any secondaries are started - */ -void __init plat_smp_setup(void) -{ - int i, num; - - cpus_clear(phys_cpu_present_map); - cpu_set(0, phys_cpu_present_map); - __cpu_number_map[0] = 0; - __cpu_logical_map[0] = 0; - - for (i = 1, num = 0; i < NR_CPUS; i++) { - if (cfe_cpu_stop(i) == 0) { - cpu_set(i, phys_cpu_present_map); - __cpu_number_map[i] = ++num; - __cpu_logical_map[num] = i; - } - } - printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); -} - -void __init plat_prepare_cpus(unsigned int max_cpus) -{ -} - -/* - * Setup the PC, SP, and GP of a secondary processor and start it - * running! - */ -void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) -{ - int retval; - - retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, - __KSTK_TOS(idle), - (unsigned long)task_thread_info(idle), 0); - if (retval != 0) - printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); -} - -/* - * Code to run on secondary just after probing the CPU - */ -void __cpuinit prom_init_secondary(void) -{ -#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) - extern void bcm1480_smp_init(void); - bcm1480_smp_init(); -#elif defined(CONFIG_SIBYTE_SB1250) - extern void sb1250_smp_init(void); - sb1250_smp_init(); -#else -#error invalid SMP configuration -#endif -} - -/* - * Do any tidying up before marking online and running the idle - * loop - */ -void __cpuinit prom_smp_finish(void) -{ -#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) - extern void bcm1480_smp_finish(void); - bcm1480_smp_finish(); -#elif defined(CONFIG_SIBYTE_SB1250) - extern void sb1250_smp_finish(void); - sb1250_smp_finish(); -#else -#error invalid SMP configuration -#endif -} - -/* - * Final cleanup after all secondaries booted - */ -void prom_cpus_done(void) -{ -} diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index 3f52c95..0734b93 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -24,6 +24,7 @@ #include <asm/mmu_context.h> #include <asm/io.h> +#include <asm/fw/cfe/cfe_api.h> #include <asm/sibyte/sb1250.h> #include <asm/sibyte/sb1250_regs.h> #include <asm/sibyte/sb1250_int.h> @@ -55,7 +56,43 @@ void __cpuinit sb1250_smp_init(void) change_c0_status(ST0_IM, imask); } -void __cpuinit sb1250_smp_finish(void) +/* + * These are routines for dealing with the sb1250 smp capabilities + * independent of board/firmware + */ + +/* + * Simple enough; everything is set up, so just poke the appropriate mailbox + * register, and we should be set + */ +static void sb1250_send_ipi_single(int cpu, unsigned int action) +{ + __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); +} + +static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action) +{ + unsigned int i; + + for_each_cpu_mask(i, mask) + sb1250_send_ipi_single(i, action); +} + +/* + * Code to run on secondary just after probing the CPU + */ +static void __cpuinit sb1250_init_secondary(void) +{ + extern void sb1250_smp_init(void); + + sb1250_smp_init(); +} + +/* + * Do any tidying up before marking online and running the idle + * loop + */ +static void __cpuinit sb1250_smp_finish(void) { extern void sb1250_clockevent_init(void); @@ -64,19 +101,68 @@ void __cpuinit sb1250_smp_finish(void) } /* - * These are routines for dealing with the sb1250 smp capabilities - * independent of board/firmware + * Final cleanup after all secondaries booted */ +static void sb1250_cpus_done(void) +{ +} /* - * Simple enough; everything is set up, so just poke the appropriate mailbox - * register, and we should be set + * Setup the PC, SP, and GP of a secondary processor and start it + * running! */ -void core_send_ipi(int cpu, unsigned int action) +static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle) { - __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); + int retval; + + retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, + __KSTK_TOS(idle), + (unsigned long)task_thread_info(idle), 0); + if (retval != 0) + printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); } +/* + * Use CFE to find out how many CPUs are available, setting up + * phys_cpu_present_map and the logical/physical mappings. + * XXXKW will the boot CPU ever not be physical 0? + * + * Common setup before any secondaries are started + */ +static void __init sb1250_smp_setup(void) +{ + int i, num; + + cpus_clear(phys_cpu_present_map); + cpu_set(0, phys_cpu_present_map); + __cpu_number_map[0] = 0; + __cpu_logical_map[0] = 0; + + for (i = 1, num = 0; i < NR_CPUS; i++) { + if (cfe_cpu_stop(i) == 0) { + cpu_set(i, phys_cpu_present_map); + __cpu_number_map[i] = ++num; + __cpu_logical_map[num] = i; + } + } + printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num); +} + +static void __init sb1250_prepare_cpus(unsigned int max_cpus) +{ +} + +struct plat_smp_ops sb_smp_ops = { + .send_ipi_single = sb1250_send_ipi_single, + .send_ipi_mask = sb1250_send_ipi_mask, + .init_secondary = sb1250_init_secondary, + .smp_finish = sb1250_smp_finish, + .cpus_done = sb1250_cpus_done, + .boot_secondary = sb1250_boot_secondary, + .smp_setup = sb1250_smp_setup, + .prepare_cpus = sb1250_prepare_cpus, +}; + void sb1250_mailbox_interrupt(void) { int cpu = smp_processor_id(); |
