From 29b08d2bae854f66d3cfd5f57aaf2e7c2c7fce32 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 4 Dec 2006 15:40:40 +0100 Subject: [S390] pfault code cleanup. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/machine_kexec.c | 8 +------- arch/s390/kernel/smp.c | 13 +++---------- arch/s390/kernel/traps.c | 25 +------------------------ 3 files changed, 5 insertions(+), 41 deletions(-) (limited to 'arch/s390/kernel') diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c index def5caf8f72..f6d9bcc0f75 100644 --- a/arch/s390/kernel/machine_kexec.c +++ b/arch/s390/kernel/machine_kexec.c @@ -49,18 +49,12 @@ void machine_shutdown(void) printk(KERN_INFO "kexec: machine_shutdown called\n"); } -extern void pfault_fini(void); - void machine_kexec(struct kimage *image) { relocate_kernel_t data_mover; - preempt_disable(); -#ifdef CONFIG_PFAULT - if (MACHINE_IS_VM) - pfault_fini(); -#endif smp_send_stop(); + pfault_fini(); s390_reset_system(); data_mover = (relocate_kernel_t) page_to_phys(image->control_code_page); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index b549a43ed08..19090f7d4f5 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -460,8 +460,6 @@ __init smp_count_cpus(void) */ extern void init_cpu_timer(void); extern void init_cpu_vtimer(void); -extern int pfault_init(void); -extern void pfault_fini(void); int __devinit start_secondary(void *cpuvoid) { @@ -473,11 +471,9 @@ int __devinit start_secondary(void *cpuvoid) #ifdef CONFIG_VIRT_TIMER init_cpu_vtimer(); #endif -#ifdef CONFIG_PFAULT /* Enable pfault pseudo page faults on this cpu. */ - if (MACHINE_IS_VM) - pfault_init(); -#endif + pfault_init(); + /* Mark this cpu as online */ cpu_set(smp_processor_id(), cpu_online_map); /* Switch on interrupts */ @@ -667,11 +663,8 @@ __cpu_disable(void) } cpu_clear(cpu, cpu_online_map); -#ifdef CONFIG_PFAULT /* Disable pfault pseudo page faults on this cpu. */ - if (MACHINE_IS_VM) - pfault_fini(); -#endif + pfault_fini(); memset(&cr_parms.orvals, 0, sizeof(cr_parms.orvals)); memset(&cr_parms.andvals, 0xff, sizeof(cr_parms.andvals)); diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 92ecffbc8d8..475dbb88443 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -58,12 +58,6 @@ int sysctl_userprocess_debug = 0; extern pgm_check_handler_t do_protection_exception; extern pgm_check_handler_t do_dat_exception; -#ifdef CONFIG_PFAULT -extern int pfault_init(void); -extern void pfault_fini(void); -extern void pfault_interrupt(__u16 error_code); -static ext_int_info_t ext_int_pfault; -#endif extern pgm_check_handler_t do_monitor_call; #define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; }) @@ -739,22 +733,5 @@ void __init trap_init(void) pgm_check_table[0x1C] = &space_switch_exception; pgm_check_table[0x1D] = &hfp_sqrt_exception; pgm_check_table[0x40] = &do_monitor_call; - - if (MACHINE_IS_VM) { -#ifdef CONFIG_PFAULT - /* - * Try to get pfault pseudo page faults going. - */ - if (register_early_external_interrupt(0x2603, pfault_interrupt, - &ext_int_pfault) != 0) - panic("Couldn't request external interrupt 0x2603"); - - if (pfault_init() == 0) - return; - - /* Tough luck, no pfault. */ - unregister_early_external_interrupt(0x2603, pfault_interrupt, - &ext_int_pfault); -#endif - } + pfault_irq_init(); } -- cgit v1.2.3