1#ifndef _ASM_M32R_SMP_H
2#define _ASM_M32R_SMP_H
3
4#ifdef CONFIG_SMP
5#ifndef __ASSEMBLY__
6
7#include <linux/cpumask.h>
8#include <linux/spinlock.h>
9#include <linux/threads.h>
10#include <asm/m32r.h>
11
12#define PHYSID_ARRAY_SIZE       1
13
14struct physid_mask
15{
16	unsigned long mask[PHYSID_ARRAY_SIZE];
17};
18
19typedef struct physid_mask physid_mask_t;
20
21#define physid_set(physid, map)                 set_bit(physid, (map).mask)
22#define physid_clear(physid, map)               clear_bit(physid, (map).mask)
23#define physid_isset(physid, map)               test_bit(physid, (map).mask)
24#define physid_test_and_set(physid, map)        test_and_set_bit(physid, (map).mask)
25
26#define physids_and(dst, src1, src2)            bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
27#define physids_or(dst, src1, src2)             bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
28#define physids_clear(map)                      bitmap_zero((map).mask, MAX_APICS)
29#define physids_complement(dst, src)            bitmap_complement((dst).mask,(src).mask, MAX_APICS)
30#define physids_empty(map)                      bitmap_empty((map).mask, MAX_APICS)
31#define physids_equal(map1, map2)               bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
32#define physids_weight(map)                     bitmap_weight((map).mask, MAX_APICS)
33#define physids_shift_right(d, s, n)            bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS)
34#define physids_shift_left(d, s, n)             bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
35#define physids_coerce(map)                     ((map).mask[0])
36
37#define physids_promote(physids)					\
38	({								\
39		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
40		__physid_mask.mask[0] = physids;			\
41		__physid_mask;						\
42	})
43
44#define physid_mask_of_physid(physid)					\
45	({								\
46		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
47		physid_set(physid, __physid_mask);			\
48		__physid_mask;						\
49	})
50
51#define PHYSID_MASK_ALL         { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
52#define PHYSID_MASK_NONE        { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
53
54extern physid_mask_t phys_cpu_present_map;
55
56/*
57 * Some lowlevel functions might want to know about
58 * the real CPU ID <-> CPU # mapping.
59 */
60extern volatile int cpu_2_physid[NR_CPUS];
61#define cpu_to_physid(cpu_id)	cpu_2_physid[cpu_id]
62
63#define raw_smp_processor_id()	(current_thread_info()->cpu)
64
65extern cpumask_t cpu_callout_map;
66extern cpumask_t cpu_possible_map;
67extern cpumask_t cpu_present_map;
68
69static __inline__ int hard_smp_processor_id(void)
70{
71	return (int)*(volatile long *)M32R_CPUID_PORTL;
72}
73
74static __inline__ int cpu_logical_map(int cpu)
75{
76	return cpu;
77}
78
79static __inline__ int cpu_number_map(int cpu)
80{
81	return cpu;
82}
83
84static __inline__ unsigned int num_booting_cpus(void)
85{
86	return cpus_weight(cpu_callout_map);
87}
88
89extern void smp_send_timer(void);
90extern unsigned long send_IPI_mask_phys(cpumask_t, int, int);
91
92#endif	/* not __ASSEMBLY__ */
93
94#define NO_PROC_ID (0xff)	/* No processor magic marker */
95
96#define PROC_CHANGE_PENALTY	(15)	/* Schedule penalty */
97
98/*
99 * M32R-mp IPI
100 */
101#define RESCHEDULE_IPI		(M32R_IRQ_IPI0-M32R_IRQ_IPI0)
102#define INVALIDATE_TLB_IPI	(M32R_IRQ_IPI1-M32R_IRQ_IPI0)
103#define CALL_FUNCTION_IPI	(M32R_IRQ_IPI2-M32R_IRQ_IPI0)
104#define LOCAL_TIMER_IPI		(M32R_IRQ_IPI3-M32R_IRQ_IPI0)
105#define INVALIDATE_CACHE_IPI	(M32R_IRQ_IPI4-M32R_IRQ_IPI0)
106#define CPU_BOOT_IPI		(M32R_IRQ_IPI5-M32R_IRQ_IPI0)
107
108#define IPI_SHIFT	(0)
109#define NR_IPIS		(8)
110
111#else	/* CONFIG_SMP */
112
113#define hard_smp_processor_id()		0
114
115#endif /* CONFIG_SMP */
116
117#endif	/* _ASM_M32R_SMP_H */
118