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-rw-r--r--arch/sparc/kernel/smp.c295
1 files changed, 0 insertions, 295 deletions
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
deleted file mode 100644
index c6e721d8f47..00000000000
--- a/arch/sparc/kernel/smp.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/* smp.c: Sparc SMP support.
- *
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * Copyright (C) 2004 Keith M Wesolowski (wesolows@foobazco.org)
- */
-
-#include <asm/head.h>
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/threads.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/seq_file.h>
-#include <linux/cache.h>
-#include <linux/delay.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/oplib.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/cpudata.h>
-
-volatile int smp_processors_ready = 0;
-int smp_num_cpus = 1;
-volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
-unsigned char boot_cpu_id = 0;
-unsigned char boot_cpu_id4 = 0; /* boot_cpu_id << 2 */
-int smp_activated = 0;
-volatile int __cpu_number_map[NR_CPUS];
-volatile int __cpu_logical_map[NR_CPUS];
-
-cpumask_t cpu_online_map = CPU_MASK_NONE;
-cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
-
-/* The only guaranteed locking primitive available on all Sparc
- * processors is 'ldstub [%reg + immediate], %dest_reg' which atomically
- * places the current byte at the effective address into dest_reg and
- * places 0xff there afterwards. Pretty lame locking primitive
- * compared to the Alpha and the Intel no? Most Sparcs have 'swap'
- * instruction which is much better...
- */
-
-/* Used to make bitops atomic */
-unsigned char bitops_spinlock = 0;
-
-volatile unsigned long ipi_count;
-
-volatile int smp_process_available=0;
-volatile int smp_commenced = 0;
-
-void __init smp_store_cpu_info(int id)
-{
- int cpu_node;
-
- cpu_data(id).udelay_val = loops_per_jiffy;
-
- cpu_find_by_mid(id, &cpu_node);
- cpu_data(id).clock_tick = prom_getintdefault(cpu_node,
- "clock-frequency", 0);
- cpu_data(id).prom_node = cpu_node;
- cpu_data(id).mid = cpu_get_hwmid(cpu_node);
- if (cpu_data(id).mid < 0)
- panic("No MID found for CPU%d at node 0x%08d", id, cpu_node);
-}
-
-void __init smp_cpus_done(unsigned int max_cpus)
-{
-}
-
-void cpu_panic(void)
-{
- printk("CPU[%d]: Returns from cpu_idle!\n", smp_processor_id());
- panic("SMP bolixed\n");
-}
-
-struct linux_prom_registers smp_penguin_ctable __initdata = { 0 };
-
-void __init smp_boot_cpus(void)
-{
- extern void smp4m_boot_cpus(void);
- extern void smp4d_boot_cpus(void);
-
- if (sparc_cpu_model == sun4m)
- smp4m_boot_cpus();
- else
- smp4d_boot_cpus();
-}
-
-void smp_send_reschedule(int cpu)
-{
- /* See sparc64 */
-}
-
-void smp_send_stop(void)
-{
-}
-
-void smp_flush_cache_all(void)
-{
- xc0((smpfunc_t) BTFIXUP_CALL(local_flush_cache_all));
- local_flush_cache_all();
-}
-
-void smp_flush_tlb_all(void)
-{
- xc0((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_all));
- local_flush_tlb_all();
-}
-
-void smp_flush_cache_mm(struct mm_struct *mm)
-{
- if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc1((smpfunc_t) BTFIXUP_CALL(local_flush_cache_mm), (unsigned long) mm);
- local_flush_cache_mm(mm);
- }
-}
-
-void smp_flush_tlb_mm(struct mm_struct *mm)
-{
- if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask)) {
- xc1((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_mm), (unsigned long) mm);
- if(atomic_read(&mm->mm_users) == 1 && current->active_mm == mm)
- mm->cpu_vm_mask = cpumask_of_cpu(smp_processor_id());
- }
- local_flush_tlb_mm(mm);
- }
-}
-
-void smp_flush_cache_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- if (mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc3((smpfunc_t) BTFIXUP_CALL(local_flush_cache_range), (unsigned long) vma, start, end);
- local_flush_cache_range(vma, start, end);
- }
-}
-
-void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- if (mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc3((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_range), (unsigned long) vma, start, end);
- local_flush_tlb_range(vma, start, end);
- }
-}
-
-void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc2((smpfunc_t) BTFIXUP_CALL(local_flush_cache_page), (unsigned long) vma, page);
- local_flush_cache_page(vma, page);
- }
-}
-
-void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- if(mm->context != NO_CONTEXT) {
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc2((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_page), (unsigned long) vma, page);
- local_flush_tlb_page(vma, page);
- }
-}
-
-void smp_reschedule_irq(void)
-{
- set_need_resched();
-}
-
-void smp_flush_page_to_ram(unsigned long page)
-{
- /* Current theory is that those who call this are the one's
- * who have just dirtied their cache with the pages contents
- * in kernel space, therefore we only run this on local cpu.
- *
- * XXX This experiment failed, research further... -DaveM
- */
-#if 1
- xc1((smpfunc_t) BTFIXUP_CALL(local_flush_page_to_ram), page);
-#endif
- local_flush_page_to_ram(page);
-}
-
-void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
-{
- cpumask_t cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask))
- xc2((smpfunc_t) BTFIXUP_CALL(local_flush_sig_insns), (unsigned long) mm, insn_addr);
- local_flush_sig_insns(mm, insn_addr);
-}
-
-extern unsigned int lvl14_resolution;
-
-/* /proc/profile writes can call this, don't __init it please. */
-static DEFINE_SPINLOCK(prof_setup_lock);
-
-int setup_profiling_timer(unsigned int multiplier)
-{
- int i;
- unsigned long flags;
-
- /* Prevent level14 ticker IRQ flooding. */
- if((!multiplier) || (lvl14_resolution / multiplier) < 500)
- return -EINVAL;
-
- spin_lock_irqsave(&prof_setup_lock, flags);
- for(i = 0; i < NR_CPUS; i++) {
- if (cpu_possible(i))
- load_profile_irq(i, lvl14_resolution / multiplier);
- prof_multiplier(i) = multiplier;
- }
- spin_unlock_irqrestore(&prof_setup_lock, flags);
-
- return 0;
-}
-
-void __init smp_prepare_cpus(unsigned int maxcpus)
-{
-}
-
-void __devinit smp_prepare_boot_cpu(void)
-{
- current_thread_info()->cpu = hard_smp_processor_id();
- cpu_set(smp_processor_id(), cpu_online_map);
- cpu_set(smp_processor_id(), phys_cpu_present_map);
-}
-
-int __devinit __cpu_up(unsigned int cpu)
-{
- panic("smp doesn't work\n");
-}
-
-void smp_bogo(struct seq_file *m)
-{
- int i;
-
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- seq_printf(m,
- "Cpu%dBogo\t: %lu.%02lu\n",
- i,
- cpu_data(i).udelay_val/(500000/HZ),
- (cpu_data(i).udelay_val/(5000/HZ))%100);
- }
-}
-
-void smp_info(struct seq_file *m)
-{
- int i;
-
- seq_printf(m, "State:\n");
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- seq_printf(m, "CPU%d\t\t: online\n", i);
- }
-}
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