patch-2.3.48 linux/include/asm-mips64/sn/arch.h

• Lines: 110
• Date: Thu Feb 24 22:53:35 2000
• Orig file: v2.3.47/linux/include/asm-mips64/sn/arch.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.47/linux/include/asm-mips64/sn/arch.h linux/include/asm-mips64/sn/arch.h
@@ -0,0 +1,109 @@
+/* $Id: arch.h,v 1.2 2000/02/10 07:28:35 kanoj Exp $
+ *
+ * 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 IP27 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>
+#include <asm/sn/sn0/arch.h>
+
+#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
+typedef u64	hubreg_t;
+typedef u64	nic_t;
+#endif
+
+#define CPUS_PER_NODE		2	/* CPUs on a single hub */
+#define CPUS_PER_NODE_SHFT	1	/* Bits to shift in the node number */
+#define CNODE_NUM_CPUS(_cnode)		(NODEPDA(_cnode)->node_num_cpus)
+#define CNODE_TO_CPU_BASE(_cnode)	(NODEPDA(_cnode)->node_first_cpu)
+#define cputocnode(cpu)				\
+               (ASSERT(pdaindr[(cpu)].pda), (pdaindr[(cpu)].pda->p_nodeid))
+#define cputonasid(cpu)				\
+               (ASSERT(pdaindr[(cpu)].pda), (pdaindr[(cpu)].pda->p_nasid))
+#define cputoslice(cpu)				\
+               (ASSERT(pdaindr[(cpu)].pda), (pdaindr[(cpu)].pda->p_slice))
+#define makespnum(_nasid, _slice)					\
+		(((_nasid) << CPUS_PER_NODE_SHFT) | (_slice))
+
+
+#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
+
+#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);
+/*
+ * 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))
+
+#if !defined(DEBUG) && (!defined(SABLE) || defined(_STANDALONE))
+
+#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)])
+#else
+
+/*
+ * These functions can do type checking and fail if they need to return
+ * a bad nodeid, but they're not as fast so just use 'em for debug kernels.
+ */
+cnodeid_t nasid_to_compact_nodeid(nasid_t nasid);
+nasid_t compact_to_nasid_nodeid(cnodeid_t cnode);
+
+#define NASID_TO_COMPACT_NODEID(nnode)	nasid_to_compact_nodeid(nnode)
+#define COMPACT_TO_NASID_NODEID(cnode)	compact_to_nasid_nodeid(cnode)
+#define CPUID_TO_COMPACT_NODEID(cpu)	(cpuid_to_compact_node[(cpu)])
+#endif
+
+extern int node_getlastslot(cnodeid_t);
+
+#endif /* _LANGUAGE_C || _LANGUAGE_C_PLUS_PLUS */
+
+#define SLOT_BITMASK    	(MAX_MEM_SLOTS - 1)
+#define SLOT_SIZE		(1LL<<SLOT_SHIFT)
+
+#if SABLE
+#define node_getnumslots(node)	(1)
+#define	NODE_MAX_MEM_SIZE	SLOT_SIZE * 1
+#else
+#define node_getnumslots(node)	(MAX_MEM_SLOTS)
+#define NODE_MAX_MEM_SIZE	SLOT_SIZE * MAX_MEM_SLOTS
+#endif /* SABLE */
+
+/*
+ * New stuff in here from Irix sys/pfdat.h.
+ */
+#define	SLOT_PFNSHIFT		(SLOT_SHIFT - PAGE_SHIFT)
+#define	PFN_NASIDSHFT		(NASID_SHFT - PAGE_SHIFT)
+#define mkpfn(nasid, off)	(((pfn_t)(nasid) << PFN_NASIDSHFT) | (off))
+#define slot_getbasepfn(node,slot) \
+		(mkpfn(COMPACT_TO_NASID_NODEID(node), slot<<SLOT_PFNSHIFT))
+#endif /* _ASM_SN_ARCH_H */