aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-parisc/smp.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-parisc/smp.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-parisc/smp.h')
-rw-r--r--include/asm-parisc/smp.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-parisc/smp.h b/include/asm-parisc/smp.h
new file mode 100644
index 000000000000..fde77ac35463
--- /dev/null
+++ b/include/asm-parisc/smp.h
@@ -0,0 +1,69 @@
1#ifndef __ASM_SMP_H
2#define __ASM_SMP_H
3
4#include <linux/config.h>
5
6#if defined(CONFIG_SMP)
7
8/* Page Zero Location PDC will look for the address to branch to when we poke
9** slave CPUs still in "Icache loop".
10*/
11#define PDC_OS_BOOT_RENDEZVOUS 0x10
12#define PDC_OS_BOOT_RENDEZVOUS_HI 0x28
13
14#ifndef ASSEMBLY
15#include <linux/bitops.h>
16#include <linux/threads.h> /* for NR_CPUS */
17#include <linux/cpumask.h>
18typedef unsigned long address_t;
19
20extern cpumask_t cpu_online_map;
21
22
23/*
24 * Private routines/data
25 *
26 * physical and logical are equivalent until we support CPU hotplug.
27 */
28#define cpu_number_map(cpu) (cpu)
29#define cpu_logical_map(cpu) (cpu)
30
31extern void smp_send_reschedule(int cpu);
32
33#endif /* !ASSEMBLY */
34
35/*
36 * This magic constant controls our willingness to transfer
37 * a process across CPUs. Such a transfer incurs cache and tlb
38 * misses. The current value is inherited from i386. Still needs
39 * to be tuned for parisc.
40 */
41
42#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
43
44#undef ENTRY_SYS_CPUS
45#ifdef ENTRY_SYS_CPUS
46#define STATE_RENDEZVOUS 0
47#define STATE_STOPPED 1
48#define STATE_RUNNING 2
49#define STATE_HALTED 3
50#endif
51
52extern unsigned long cpu_present_mask;
53
54#define smp_processor_id() (current_thread_info()->cpu)
55
56#endif /* CONFIG_SMP */
57
58#define NO_PROC_ID 0xFF /* No processor magic marker */
59#define ANY_PROC_ID 0xFF /* Any processor magic marker */
60static inline int __cpu_disable (void) {
61 return 0;
62}
63static inline void __cpu_die (unsigned int cpu) {
64 while(1)
65 ;
66}
67extern int __cpu_up (unsigned int cpu);
68
69#endif /* __ASM_SMP_H */