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author | Ralf Baechle <ralf@linux-mips.org> | 2008-09-16 21:48:51 +0400 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 19:18:52 +0400 |
commit | 384740dc49ea651ba350704d13ff6be9976e37fe (patch) | |
tree | a6e80cad287ccae7a86d81bfa692fc96889c88ed /arch/mips/include/asm/sn/arch.h | |
parent | e8c7c482347574ecdd45c43e32c332d5fc2ece61 (diff) | |
download | linux-384740dc49ea651ba350704d13ff6be9976e37fe.tar.xz |
MIPS: Move headfiles to new location below arch/mips/include
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/sn/arch.h')
-rw-r--r-- | arch/mips/include/asm/sn/arch.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sn/arch.h b/arch/mips/include/asm/sn/arch.h new file mode 100644 index 000000000000..bd75945e10ff --- /dev/null +++ b/arch/mips/include/asm/sn/arch.h @@ -0,0 +1,64 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * SGI specific setup. + * + * Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc. + * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) + */ +#ifndef _ASM_SN_ARCH_H +#define _ASM_SN_ARCH_H + +#include <linux/types.h> +#include <asm/sn/types.h> +#ifdef CONFIG_SGI_IP27 +#include <asm/sn/sn0/arch.h> +#endif + +typedef u64 hubreg_t; + +#define cputonasid(cpu) (sn_cpu_info[(cpu)].p_nasid) +#define cputoslice(cpu) (sn_cpu_info[(cpu)].p_slice) +#define makespnum(_nasid, _slice) \ + (((_nasid) << CPUS_PER_NODE_SHFT) | (_slice)) + +#define INVALID_NASID (nasid_t)-1 +#define INVALID_CNODEID (cnodeid_t)-1 +#define INVALID_PNODEID (pnodeid_t)-1 +#define INVALID_MODULE (moduleid_t)-1 +#define INVALID_PARTID (partid_t)-1 + +extern nasid_t get_nasid(void); +extern cnodeid_t get_cpu_cnode(cpuid_t); +extern int get_cpu_slice(cpuid_t); + +/* + * NO ONE should access these arrays directly. The only reason we refer to + * them here is to avoid the procedure call that would be required in the + * macros below. (Really want private data members here :-) + */ +extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; +extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; + +/* + * These macros are used by various parts of the kernel to convert + * between the three different kinds of node numbering. At least some + * of them may change to procedure calls in the future, but the macros + * will continue to work. Don't use the arrays above directly. + */ + +#define NASID_TO_REGION(nnode) \ + ((nnode) >> \ + (is_fine_dirmode() ? NASID_TO_FINEREG_SHFT : NASID_TO_COARSEREG_SHFT)) + +extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; +extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; +extern cnodeid_t cpuid_to_compact_node[MAXCPUS]; + +#define NASID_TO_COMPACT_NODEID(nnode) (nasid_to_compact_node[nnode]) +#define COMPACT_TO_NASID_NODEID(cnode) (compact_to_nasid_node[cnode]) +#define CPUID_TO_COMPACT_NODEID(cpu) (cpuid_to_compact_node[(cpu)]) + +#endif /* _ASM_SN_ARCH_H */ |