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authorRalf Baechle <ralf@linux-mips.org>2008-09-16 19:48:51 +0200
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:52 +0100
commit384740dc49ea651ba350704d13ff6be9976e37fe (patch)
treea6e80cad287ccae7a86d81bfa692fc96889c88ed /arch/mips/include/asm/cpu-info.h
parente8c7c482347574ecdd45c43e32c332d5fc2ece61 (diff)
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/cpu-info.h')
-rw-r--r--arch/mips/include/asm/cpu-info.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
new file mode 100644
index 00000000000..2de73dbb2e9
--- /dev/null
+++ b/arch/mips/include/asm/cpu-info.h
@@ -0,0 +1,84 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1994 Waldorf GMBH
+ * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003 Ralf Baechle
+ * Copyright (C) 1996 Paul M. Antoine
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2004 Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_INFO_H
+#define __ASM_CPU_INFO_H
+
+#include <asm/cache.h>
+
+/*
+ * Descriptor for a cache
+ */
+struct cache_desc {
+ unsigned int waysize; /* Bytes per way */
+ unsigned short sets; /* Number of lines per set */
+ unsigned char ways; /* Number of ways */
+ unsigned char linesz; /* Size of line in bytes */
+ unsigned char waybit; /* Bits to select in a cache set */
+ unsigned char flags; /* Flags describing cache properties */
+};
+
+/*
+ * Flag definitions
+ */
+#define MIPS_CACHE_NOT_PRESENT 0x00000001
+#define MIPS_CACHE_VTAG 0x00000002 /* Virtually tagged cache */
+#define MIPS_CACHE_ALIASES 0x00000004 /* Cache could have aliases */
+#define MIPS_CACHE_IC_F_DC 0x00000008 /* Ic can refill from D-cache */
+#define MIPS_IC_SNOOPS_REMOTE 0x00000010 /* Ic snoops remote stores */
+#define MIPS_CACHE_PINDEX 0x00000020 /* Physically indexed cache */
+
+struct cpuinfo_mips {
+ unsigned long udelay_val;
+ unsigned long asid_cache;
+
+ /*
+ * Capability and feature descriptor structure for MIPS CPU
+ */
+ unsigned long options;
+ unsigned long ases;
+ unsigned int processor_id;
+ unsigned int fpu_id;
+ unsigned int cputype;
+ int isa_level;
+ int tlbsize;
+ struct cache_desc icache; /* Primary I-cache */
+ struct cache_desc dcache; /* Primary D or combined I/D cache */
+ struct cache_desc scache; /* Secondary cache */
+ struct cache_desc tcache; /* Tertiary/split secondary cache */
+ int srsets; /* Shadow register sets */
+ int core; /* physical core number */
+#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
+ /*
+ * In the MIPS MT "SMTC" model, each TC is considered
+ * to be a "CPU" for the purposes of scheduling, but
+ * exception resources, ASID spaces, etc, are common
+ * to all TCs within the same VPE.
+ */
+ int vpe_id; /* Virtual Processor number */
+#endif
+#ifdef CONFIG_MIPS_MT_SMTC
+ int tc_id; /* Thread Context number */
+#endif
+ void *data; /* Additional data */
+} __attribute__((aligned(SMP_CACHE_BYTES)));
+
+extern struct cpuinfo_mips cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
+
+extern void cpu_probe(void);
+extern void cpu_report(void);
+
+extern const char *__cpu_name[];
+#define cpu_name_string() __cpu_name[smp_processor_id()]
+
+#endif /* __ASM_CPU_INFO_H */