diff options
Diffstat (limited to 'include/asm-sparc64/smp.h')
-rw-r--r-- | include/asm-sparc64/smp.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h new file mode 100644 index 000000000000..5e3e06d908fe --- /dev/null +++ b/include/asm-sparc64/smp.h | |||
@@ -0,0 +1,75 @@ | |||
1 | /* smp.h: Sparc64 specific SMP stuff. | ||
2 | * | ||
3 | * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) | ||
4 | */ | ||
5 | |||
6 | #ifndef _SPARC64_SMP_H | ||
7 | #define _SPARC64_SMP_H | ||
8 | |||
9 | #include <linux/config.h> | ||
10 | #include <linux/threads.h> | ||
11 | #include <asm/asi.h> | ||
12 | #include <asm/starfire.h> | ||
13 | #include <asm/spitfire.h> | ||
14 | |||
15 | #ifndef __ASSEMBLY__ | ||
16 | |||
17 | #include <linux/cpumask.h> | ||
18 | #include <linux/cache.h> | ||
19 | |||
20 | #endif /* !(__ASSEMBLY__) */ | ||
21 | |||
22 | #ifdef CONFIG_SMP | ||
23 | |||
24 | #ifndef __ASSEMBLY__ | ||
25 | |||
26 | /* | ||
27 | * Private routines/data | ||
28 | */ | ||
29 | |||
30 | #include <asm/bitops.h> | ||
31 | #include <asm/atomic.h> | ||
32 | |||
33 | extern cpumask_t phys_cpu_present_map; | ||
34 | #define cpu_possible_map phys_cpu_present_map | ||
35 | |||
36 | /* | ||
37 | * General functions that each host system must provide. | ||
38 | */ | ||
39 | |||
40 | static __inline__ int hard_smp_processor_id(void) | ||
41 | { | ||
42 | if (tlb_type == cheetah || tlb_type == cheetah_plus) { | ||
43 | unsigned long cfg, ver; | ||
44 | __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); | ||
45 | if ((ver >> 32) == 0x003e0016) { | ||
46 | __asm__ __volatile__("ldxa [%%g0] %1, %0" | ||
47 | : "=r" (cfg) | ||
48 | : "i" (ASI_JBUS_CONFIG)); | ||
49 | return ((cfg >> 17) & 0x1f); | ||
50 | } else { | ||
51 | __asm__ __volatile__("ldxa [%%g0] %1, %0" | ||
52 | : "=r" (cfg) | ||
53 | : "i" (ASI_SAFARI_CONFIG)); | ||
54 | return ((cfg >> 17) & 0x3ff); | ||
55 | } | ||
56 | } else if (this_is_starfire != 0) { | ||
57 | return starfire_hard_smp_processor_id(); | ||
58 | } else { | ||
59 | unsigned long upaconfig; | ||
60 | __asm__ __volatile__("ldxa [%%g0] %1, %0" | ||
61 | : "=r" (upaconfig) | ||
62 | : "i" (ASI_UPA_CONFIG)); | ||
63 | return ((upaconfig >> 17) & 0x1f); | ||
64 | } | ||
65 | } | ||
66 | |||
67 | #define smp_processor_id() (current_thread_info()->cpu) | ||
68 | |||
69 | #endif /* !(__ASSEMBLY__) */ | ||
70 | |||
71 | #endif /* !(CONFIG_SMP) */ | ||
72 | |||
73 | #define NO_PROC_ID 0xFF | ||
74 | |||
75 | #endif /* !(_SPARC64_SMP_H) */ | ||