1/*
 2 * ARM specific SMP header, this contains our implementation
 3 * details.
 4 */
 5#ifndef __ASMARM_SMP_PLAT_H
 6#define __ASMARM_SMP_PLAT_H
 7
 8#include <asm/cputype.h>
 9
10/*
11 * Return true if we are running on a SMP platform
12 */
13static inline bool is_smp(void)
14{
15#ifndef CONFIG_SMP
16	return false;
17#elif defined(CONFIG_SMP_ON_UP)
18	extern unsigned int smp_on_up;
19	return !!smp_on_up;
20#else
21	return true;
22#endif
23}
24
25/* all SMP configurations have the extended CPUID registers */
26static inline int tlb_ops_need_broadcast(void)
27{
28	if (!is_smp())
29		return 0;
30
31	return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 2;
32}
33
34#if !defined(CONFIG_SMP) || __LINUX_ARM_ARCH__ >= 7
35#define cache_ops_need_broadcast()	0
36#else
37static inline int cache_ops_need_broadcast(void)
38{
39	if (!is_smp())
40		return 0;
41
42	return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 1;
43}
44#endif
45
46/*
47 * Logical CPU mapping.
48 */
49extern int __cpu_logical_map[];
50#define cpu_logical_map(cpu)	__cpu_logical_map[cpu]
51
52#endif

 1/*
 2 * ARM specific SMP header, this contains our implementation
 3 * details.
 4 */
 5#ifndef __ASMARM_SMP_PLAT_H
 6#define __ASMARM_SMP_PLAT_H
 7
 8#include <asm/cputype.h>
 9
10/*
11 * Return true if we are running on a SMP platform
12 */
13static inline bool is_smp(void)
14{
15#ifndef CONFIG_SMP
16	return false;
17#elif defined(CONFIG_SMP_ON_UP)
18	extern unsigned int smp_on_up;
19	return !!smp_on_up;
20#else
21	return true;
22#endif
23}
24
25/* all SMP configurations have the extended CPUID registers */
26static inline int tlb_ops_need_broadcast(void)
27{
28	if (!is_smp())
29		return 0;
30
31	return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 2;
32}
33
34#if !defined(CONFIG_SMP) || __LINUX_ARM_ARCH__ >= 7
35#define cache_ops_need_broadcast()	0
36#else
37static inline int cache_ops_need_broadcast(void)
38{
39	if (!is_smp())
40		return 0;
41
42	return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 1;
43}
44#endif
45
 
 
 
 
 
 
46#endif