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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc64/smp.h | |
download | kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-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-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 0000000..5e3e06d --- /dev/null +++ b/include/asm-sparc64/smp.h @@ -0,0 +1,75 @@ +/* smp.h: Sparc64 specific SMP stuff. + * + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC64_SMP_H +#define _SPARC64_SMP_H + +#include <linux/config.h> +#include <linux/threads.h> +#include <asm/asi.h> +#include <asm/starfire.h> +#include <asm/spitfire.h> + +#ifndef __ASSEMBLY__ + +#include <linux/cpumask.h> +#include <linux/cache.h> + +#endif /* !(__ASSEMBLY__) */ + +#ifdef CONFIG_SMP + +#ifndef __ASSEMBLY__ + +/* + * Private routines/data + */ + +#include <asm/bitops.h> +#include <asm/atomic.h> + +extern cpumask_t phys_cpu_present_map; +#define cpu_possible_map phys_cpu_present_map + +/* + * General functions that each host system must provide. + */ + +static __inline__ int hard_smp_processor_id(void) +{ + if (tlb_type == cheetah || tlb_type == cheetah_plus) { + unsigned long cfg, ver; + __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); + if ((ver >> 32) == 0x003e0016) { + __asm__ __volatile__("ldxa [%%g0] %1, %0" + : "=r" (cfg) + : "i" (ASI_JBUS_CONFIG)); + return ((cfg >> 17) & 0x1f); + } else { + __asm__ __volatile__("ldxa [%%g0] %1, %0" + : "=r" (cfg) + : "i" (ASI_SAFARI_CONFIG)); + return ((cfg >> 17) & 0x3ff); + } + } else if (this_is_starfire != 0) { + return starfire_hard_smp_processor_id(); + } else { + unsigned long upaconfig; + __asm__ __volatile__("ldxa [%%g0] %1, %0" + : "=r" (upaconfig) + : "i" (ASI_UPA_CONFIG)); + return ((upaconfig >> 17) & 0x1f); + } +} + +#define smp_processor_id() (current_thread_info()->cpu) + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(CONFIG_SMP) */ + +#define NO_PROC_ID 0xFF + +#endif /* !(_SPARC64_SMP_H) */ |