diff options
Diffstat (limited to 'arch/sparc64/kernel/cpu.c')
| -rw-r--r-- | arch/sparc64/kernel/cpu.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c deleted file mode 100644 index 0c9ac83ed0a8..000000000000 --- a/arch/sparc64/kernel/cpu.c +++ /dev/null | |||
| @@ -1,166 +0,0 @@ | |||
| 1 | /* cpu.c: Dinky routines to look for the kind of Sparc cpu | ||
| 2 | * we are on. | ||
| 3 | * | ||
| 4 | * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@davemloft.net) | ||
| 5 | */ | ||
| 6 | |||
| 7 | #include <linux/kernel.h> | ||
| 8 | #include <linux/init.h> | ||
| 9 | #include <linux/sched.h> | ||
| 10 | #include <linux/smp.h> | ||
| 11 | #include <asm/asi.h> | ||
| 12 | #include <asm/system.h> | ||
| 13 | #include <asm/fpumacro.h> | ||
| 14 | #include <asm/cpudata.h> | ||
| 15 | #include <asm/spitfire.h> | ||
| 16 | #include <asm/oplib.h> | ||
| 17 | |||
| 18 | #include "entry.h" | ||
| 19 | |||
| 20 | DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 }; | ||
| 21 | |||
| 22 | struct cpu_chip_info { | ||
| 23 | unsigned short manuf; | ||
| 24 | unsigned short impl; | ||
| 25 | const char *cpu_name; | ||
| 26 | const char *fp_name; | ||
| 27 | }; | ||
| 28 | |||
| 29 | static const struct cpu_chip_info cpu_chips[] = { | ||
| 30 | { | ||
| 31 | .manuf = 0x17, | ||
| 32 | .impl = 0x10, | ||
| 33 | .cpu_name = "TI UltraSparc I (SpitFire)", | ||
| 34 | .fp_name = "UltraSparc I integrated FPU", | ||
| 35 | }, | ||
| 36 | { | ||
| 37 | .manuf = 0x22, | ||
| 38 | .impl = 0x10, | ||
| 39 | .cpu_name = "TI UltraSparc I (SpitFire)", | ||
| 40 | .fp_name = "UltraSparc I integrated FPU", | ||
| 41 | }, | ||
| 42 | { | ||
| 43 | .manuf = 0x17, | ||
| 44 | .impl = 0x11, | ||
| 45 | .cpu_name = "TI UltraSparc II (BlackBird)", | ||
| 46 | .fp_name = "UltraSparc II integrated FPU", | ||
| 47 | }, | ||
| 48 | { | ||
| 49 | .manuf = 0x17, | ||
| 50 | .impl = 0x12, | ||
| 51 | .cpu_name = "TI UltraSparc IIi (Sabre)", | ||
| 52 | .fp_name = "UltraSparc IIi integrated FPU", | ||
| 53 | }, | ||
| 54 | { | ||
| 55 | .manuf = 0x17, | ||
| 56 | .impl = 0x13, | ||
| 57 | .cpu_name = "TI UltraSparc IIe (Hummingbird)", | ||
| 58 | .fp_name = "UltraSparc IIe integrated FPU", | ||
| 59 | }, | ||
| 60 | { | ||
| 61 | .manuf = 0x3e, | ||
| 62 | .impl = 0x14, | ||
| 63 | .cpu_name = "TI UltraSparc III (Cheetah)", | ||
| 64 | .fp_name = "UltraSparc III integrated FPU", | ||
| 65 | }, | ||
| 66 | { | ||
| 67 | .manuf = 0x3e, | ||
| 68 | .impl = 0x15, | ||
| 69 | .cpu_name = "TI UltraSparc III+ (Cheetah+)", | ||
| 70 | .fp_name = "UltraSparc III+ integrated FPU", | ||
| 71 | }, | ||
| 72 | { | ||
| 73 | .manuf = 0x3e, | ||
| 74 | .impl = 0x16, | ||
| 75 | .cpu_name = "TI UltraSparc IIIi (Jalapeno)", | ||
| 76 | .fp_name = "UltraSparc IIIi integrated FPU", | ||
| 77 | }, | ||
| 78 | { | ||
| 79 | .manuf = 0x3e, | ||
| 80 | .impl = 0x18, | ||
| 81 | .cpu_name = "TI UltraSparc IV (Jaguar)", | ||
| 82 | .fp_name = "UltraSparc IV integrated FPU", | ||
| 83 | }, | ||
| 84 | { | ||
| 85 | .manuf = 0x3e, | ||
| 86 | .impl = 0x19, | ||
| 87 | .cpu_name = "TI UltraSparc IV+ (Panther)", | ||
| 88 | .fp_name = "UltraSparc IV+ integrated FPU", | ||
| 89 | }, | ||
| 90 | { | ||
| 91 | .manuf = 0x3e, | ||
| 92 | .impl = 0x22, | ||
| 93 | .cpu_name = "TI UltraSparc IIIi+ (Serrano)", | ||
| 94 | .fp_name = "UltraSparc IIIi+ integrated FPU", | ||
| 95 | }, | ||
| 96 | }; | ||
| 97 | |||
| 98 | #define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips) | ||
| 99 | |||
| 100 | const char *sparc_cpu_type; | ||
| 101 | const char *sparc_fpu_type; | ||
| 102 | |||
| 103 | static void __init sun4v_cpu_probe(void) | ||
| 104 | { | ||
| 105 | switch (sun4v_chip_type) { | ||
| 106 | case SUN4V_CHIP_NIAGARA1: | ||
| 107 | sparc_cpu_type = "UltraSparc T1 (Niagara)"; | ||
| 108 | sparc_fpu_type = "UltraSparc T1 integrated FPU"; | ||
| 109 | break; | ||
| 110 | |||
| 111 | case SUN4V_CHIP_NIAGARA2: | ||
| 112 | sparc_cpu_type = "UltraSparc T2 (Niagara2)"; | ||
| 113 | sparc_fpu_type = "UltraSparc T2 integrated FPU"; | ||
| 114 | break; | ||
| 115 | |||
| 116 | default: | ||
| 117 | printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n", | ||
| 118 | prom_cpu_compatible); | ||
| 119 | sparc_cpu_type = "Unknown SUN4V CPU"; | ||
| 120 | sparc_fpu_type = "Unknown SUN4V FPU"; | ||
| 121 | break; | ||
| 122 | } | ||
| 123 | } | ||
| 124 | |||
| 125 | static const struct cpu_chip_info * __init find_cpu_chip(unsigned short manuf, | ||
| 126 | unsigned short impl) | ||
| 127 | { | ||
| 128 | int i; | ||
| 129 | |||
| 130 | for (i = 0; i < ARRAY_SIZE(cpu_chips); i++) { | ||
| 131 | const struct cpu_chip_info *p = &cpu_chips[i]; | ||
| 132 | |||
| 133 | if (p->manuf == manuf && p->impl == impl) | ||
| 134 | return p; | ||
| 135 | } | ||
| 136 | return NULL; | ||
| 137 | } | ||
| 138 | |||
| 139 | static int __init cpu_type_probe(void) | ||
| 140 | { | ||
| 141 | if (tlb_type == hypervisor) { | ||
| 142 | sun4v_cpu_probe(); | ||
| 143 | } else { | ||
| 144 | unsigned long ver, manuf, impl; | ||
| 145 | const struct cpu_chip_info *p; | ||
| 146 | |||
| 147 | __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); | ||
| 148 | |||
| 149 | manuf = ((ver >> 48) & 0xffff); | ||
| 150 | impl = ((ver >> 32) & 0xffff); | ||
| 151 | |||
| 152 | p = find_cpu_chip(manuf, impl); | ||
| 153 | if (p) { | ||
| 154 | sparc_cpu_type = p->cpu_name; | ||
| 155 | sparc_fpu_type = p->fp_name; | ||
| 156 | } else { | ||
| 157 | printk(KERN_ERR "CPU: Unknown chip, manuf[%lx] impl[%lx]\n", | ||
| 158 | manuf, impl); | ||
| 159 | sparc_cpu_type = "Unknown CPU"; | ||
| 160 | sparc_fpu_type = "Unknown FPU"; | ||
| 161 | } | ||
| 162 | } | ||
| 163 | return 0; | ||
| 164 | } | ||
| 165 | |||
| 166 | arch_initcall(cpu_type_probe); | ||