1 files changed, 127 insertions, 0 deletions

diff --git a/include/asm-ppc/cputable.h b/include/asm-ppc/cputable.h
new file mode 100644
index 000000000000..22de04fe1b4c
--- /dev/null
+++ b/include/asm-ppc/cputable.h
@@ -0,0 +1,127 @@
+/*
+ *  include/asm-ppc/cputable.h
+ *
+ *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+
+#ifndef __ASM_PPC_CPUTABLE_H
+#define __ASM_PPC_CPUTABLE_H
+
+/* Exposed to userland CPU features */
+#define PPC_FEATURE_32                  0x80000000
+#define PPC_FEATURE_64                  0x40000000
+#define PPC_FEATURE_601_INSTR           0x20000000
+#define PPC_FEATURE_HAS_ALTIVEC         0x10000000
+#define PPC_FEATURE_HAS_FPU             0x08000000
+#define PPC_FEATURE_HAS_MMU             0x04000000
+#define PPC_FEATURE_HAS_4xxMAC          0x02000000
+#define PPC_FEATURE_UNIFIED_CACHE       0x01000000
+#define PPC_FEATURE_HAS_SPE             0x00800000
+#define PPC_FEATURE_HAS_EFP_SINGLE      0x00400000
+#define PPC_FEATURE_HAS_EFP_DOUBLE      0x00200000
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+/* This structure can grow, it's real size is used by head.S code
+ * via the mkdefs mecanism.
+ */
+struct cpu_spec;
+
+typedef void (*cpu_setup_t)(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
+
+struct cpu_spec {
+        /* CPU is matched via (PVR & pvr_mask) == pvr_value */
+        unsigned int    pvr_mask;
+        unsigned int    pvr_value;
+
+        char            *cpu_name;
+        unsigned int    cpu_features;           /* Kernel features */
+        unsigned int    cpu_user_features;      /* Userland features */
+
+        /* cache line sizes */
+        unsigned int    icache_bsize;
+        unsigned int    dcache_bsize;
+
+        /* number of performance monitor counters */
+        unsigned int    num_pmcs;
+
+        /* this is called to initialize various CPU bits like L1 cache,
+         * BHT, SPD, etc... from head.S before branching to identify_machine
+         */
+        cpu_setup_t     cpu_setup;
+};
+
+extern struct cpu_spec          cpu_specs[];
+extern struct cpu_spec          *cur_cpu_spec[];
+
+static inline unsigned int cpu_has_feature(unsigned int feature)
+{
+        return cur_cpu_spec[0]->cpu_features & feature;
+}
+
+#endif /* __ASSEMBLY__ */
+
+/* CPU kernel features */
+#define CPU_FTR_SPLIT_ID_CACHE          0x00000001
+#define CPU_FTR_L2CR                    0x00000002
+#define CPU_FTR_SPEC7450                0x00000004
+#define CPU_FTR_ALTIVEC                 0x00000008
+#define CPU_FTR_TAU                     0x00000010
+#define CPU_FTR_CAN_DOZE                0x00000020
+#define CPU_FTR_USE_TB                  0x00000040
+#define CPU_FTR_604_PERF_MON            0x00000080
+#define CPU_FTR_601                     0x00000100
+#define CPU_FTR_HPTE_TABLE              0x00000200
+#define CPU_FTR_CAN_NAP                 0x00000400
+#define CPU_FTR_L3CR                    0x00000800
+#define CPU_FTR_L3_DISABLE_NAP          0x00001000
+#define CPU_FTR_NAP_DISABLE_L2_PR       0x00002000
+#define CPU_FTR_DUAL_PLL_750FX          0x00004000
+#define CPU_FTR_NO_DPM                  0x00008000
+#define CPU_FTR_HAS_HIGH_BATS           0x00010000
+#define CPU_FTR_NEED_COHERENT           0x00020000
+#define CPU_FTR_NO_BTIC                 0x00040000
+
+#ifdef __ASSEMBLY__
+
+#define BEGIN_FTR_SECTION               98:
+
+#define END_FTR_SECTION(msk, val)               \
+99:                                             \
+        .section __ftr_fixup,"a";               \
+        .align 2;                               \
+        .long msk;                              \
+        .long val;                              \
+        .long 98b;                              \
+        .long 99b;                              \
+        .previous
+
+#else
+
+#define BEGIN_FTR_SECTION               "98:\n"
+#define END_FTR_SECTION(msk, val)               \
+"99:\n"                                         \
+"       .section __ftr_fixup,\"a\";\n"          \
+"       .align 2;\n"                            \
+"       .long "#msk";\n"                        \
+"       .long "#val";\n"                        \
+"       .long 98b;\n"                           \
+"       .long 99b;\n"                           \
+"       .previous\n"
+
+
+#endif /* __ASSEMBLY__ */
+
+#define END_FTR_SECTION_IFSET(msk)      END_FTR_SECTION((msk), (msk))
+#define END_FTR_SECTION_IFCLR(msk)      END_FTR_SECTION((msk), 0)
+
+#endif /* __ASM_PPC_CPUTABLE_H */
+#endif /* __KERNEL__ */
+