diff options
author | Hirokazu Takata <takata@linux-m32r.org> | 2008-11-28 02:46:48 +0900 |
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committer | Hirokazu Takata <takata@linux-m32r.org> | 2009-04-17 10:05:01 +0900 |
commit | fe4e719d82c4052751d2287de4bd18bd04e93685 (patch) | |
tree | 3a120e25626becf138f523a356422c0cdf9804c7 /arch/m32r/include/asm/smp.h | |
parent | 20d9207849d5abe60461841b3c3724f6e7c9d33e (diff) |
m32r: move include/asm-m32r headers to arch/m32r/include/asm
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Diffstat (limited to 'arch/m32r/include/asm/smp.h')
-rw-r--r-- | arch/m32r/include/asm/smp.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h new file mode 100644 index 00000000000..b96a6d2ffbc --- /dev/null +++ b/arch/m32r/include/asm/smp.h @@ -0,0 +1,119 @@ +#ifndef _ASM_M32R_SMP_H +#define _ASM_M32R_SMP_H + +#ifdef CONFIG_SMP +#ifndef __ASSEMBLY__ + +#include <linux/cpumask.h> +#include <linux/spinlock.h> +#include <linux/threads.h> +#include <asm/m32r.h> + +#define PHYSID_ARRAY_SIZE 1 + +struct physid_mask +{ + unsigned long mask[PHYSID_ARRAY_SIZE]; +}; + +typedef struct physid_mask physid_mask_t; + +#define physid_set(physid, map) set_bit(physid, (map).mask) +#define physid_clear(physid, map) clear_bit(physid, (map).mask) +#define physid_isset(physid, map) test_bit(physid, (map).mask) +#define physid_test_and_set(physid, map) test_and_set_bit(physid, (map).mask) + +#define physids_and(dst, src1, src2) bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS) +#define physids_or(dst, src1, src2) bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS) +#define physids_clear(map) bitmap_zero((map).mask, MAX_APICS) +#define physids_complement(dst, src) bitmap_complement((dst).mask,(src).mask, MAX_APICS) +#define physids_empty(map) bitmap_empty((map).mask, MAX_APICS) +#define physids_equal(map1, map2) bitmap_equal((map1).mask, (map2).mask, MAX_APICS) +#define physids_weight(map) bitmap_weight((map).mask, MAX_APICS) +#define physids_shift_right(d, s, n) bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS) +#define physids_shift_left(d, s, n) bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS) +#define physids_coerce(map) ((map).mask[0]) + +#define physids_promote(physids) \ + ({ \ + physid_mask_t __physid_mask = PHYSID_MASK_NONE; \ + __physid_mask.mask[0] = physids; \ + __physid_mask; \ + }) + +#define physid_mask_of_physid(physid) \ + ({ \ + physid_mask_t __physid_mask = PHYSID_MASK_NONE; \ + physid_set(physid, __physid_mask); \ + __physid_mask; \ + }) + +#define PHYSID_MASK_ALL { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} } +#define PHYSID_MASK_NONE { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} } + +extern physid_mask_t phys_cpu_present_map; + +/* + * Some lowlevel functions might want to know about + * the real CPU ID <-> CPU # mapping. + */ +extern volatile int cpu_2_physid[NR_CPUS]; +#define cpu_to_physid(cpu_id) cpu_2_physid[cpu_id] + +#define raw_smp_processor_id() (current_thread_info()->cpu) + +extern cpumask_t cpu_callout_map; + +static __inline__ int hard_smp_processor_id(void) +{ + return (int)*(volatile long *)M32R_CPUID_PORTL; +} + +static __inline__ int cpu_logical_map(int cpu) +{ + return cpu; +} + +static __inline__ int cpu_number_map(int cpu) +{ + return cpu; +} + +static __inline__ unsigned int num_booting_cpus(void) +{ + return cpus_weight(cpu_callout_map); +} + +extern void smp_send_timer(void); +extern unsigned long send_IPI_mask_phys(cpumask_t, int, int); + +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi(cpumask_t mask); + +#endif /* not __ASSEMBLY__ */ + +#define NO_PROC_ID (0xff) /* No processor magic marker */ + +#define PROC_CHANGE_PENALTY (15) /* Schedule penalty */ + +/* + * M32R-mp IPI + */ +#define RESCHEDULE_IPI (M32R_IRQ_IPI0-M32R_IRQ_IPI0) +#define INVALIDATE_TLB_IPI (M32R_IRQ_IPI1-M32R_IRQ_IPI0) +#define CALL_FUNCTION_IPI (M32R_IRQ_IPI2-M32R_IRQ_IPI0) +#define LOCAL_TIMER_IPI (M32R_IRQ_IPI3-M32R_IRQ_IPI0) +#define INVALIDATE_CACHE_IPI (M32R_IRQ_IPI4-M32R_IRQ_IPI0) +#define CPU_BOOT_IPI (M32R_IRQ_IPI5-M32R_IRQ_IPI0) +#define CALL_FUNC_SINGLE_IPI (M32R_IRQ_IPI6-M32R_IRQ_IPI0) + +#define IPI_SHIFT (0) +#define NR_IPIS (8) + +#else /* CONFIG_SMP */ + +#define hard_smp_processor_id() 0 + +#endif /* CONFIG_SMP */ + +#endif /* _ASM_M32R_SMP_H */ |