diff options
Diffstat (limited to 'arch/sparc64/kernel/cpu.c')
-rw-r--r-- | arch/sparc64/kernel/cpu.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c index 7eb81d3954d9..e43db73f2b91 100644 --- a/arch/sparc64/kernel/cpu.c +++ b/arch/sparc64/kernel/cpu.c | |||
@@ -1,7 +1,7 @@ | |||
1 | /* cpu.c: Dinky routines to look for the kind of Sparc cpu | 1 | /* cpu.c: Dinky routines to look for the kind of Sparc cpu |
2 | * we are on. | 2 | * we are on. |
3 | * | 3 | * |
4 | * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) | 4 | * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net) |
5 | */ | 5 | */ |
6 | 6 | ||
7 | #include <linux/kernel.h> | 7 | #include <linux/kernel.h> |
@@ -13,6 +13,7 @@ | |||
13 | #include <asm/fpumacro.h> | 13 | #include <asm/fpumacro.h> |
14 | #include <asm/cpudata.h> | 14 | #include <asm/cpudata.h> |
15 | #include <asm/spitfire.h> | 15 | #include <asm/spitfire.h> |
16 | #include <asm/oplib.h> | ||
16 | 17 | ||
17 | DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 }; | 18 | DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 }; |
18 | 19 | ||
@@ -61,21 +62,40 @@ struct cpu_iu_info linux_sparc_chips[] = { | |||
61 | 62 | ||
62 | #define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips) | 63 | #define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips) |
63 | 64 | ||
64 | char *sparc_cpu_type = "cpu-oops"; | 65 | char *sparc_cpu_type; |
65 | char *sparc_fpu_type = "fpu-oops"; | 66 | char *sparc_fpu_type; |
66 | 67 | ||
67 | unsigned int fsr_storage; | 68 | unsigned int fsr_storage; |
68 | 69 | ||
70 | static void __init sun4v_cpu_probe(void) | ||
71 | { | ||
72 | switch (sun4v_chip_type) { | ||
73 | case SUN4V_CHIP_NIAGARA1: | ||
74 | sparc_cpu_type = "UltraSparc T1 (Niagara)"; | ||
75 | sparc_fpu_type = "UltraSparc T1 integrated FPU"; | ||
76 | break; | ||
77 | |||
78 | case SUN4V_CHIP_NIAGARA2: | ||
79 | sparc_cpu_type = "UltraSparc T2 (Niagara2)"; | ||
80 | sparc_fpu_type = "UltraSparc T2 integrated FPU"; | ||
81 | break; | ||
82 | |||
83 | default: | ||
84 | printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n", | ||
85 | prom_cpu_compatible); | ||
86 | sparc_cpu_type = "Unknown SUN4V CPU"; | ||
87 | sparc_fpu_type = "Unknown SUN4V FPU"; | ||
88 | break; | ||
89 | } | ||
90 | } | ||
91 | |||
69 | void __init cpu_probe(void) | 92 | void __init cpu_probe(void) |
70 | { | 93 | { |
71 | unsigned long ver, fpu_vers, manuf, impl, fprs; | 94 | unsigned long ver, fpu_vers, manuf, impl, fprs; |
72 | int i; | 95 | int i; |
73 | 96 | ||
74 | if (tlb_type == hypervisor) { | 97 | if (tlb_type == hypervisor) |
75 | sparc_cpu_type = "UltraSparc T1 (Niagara)"; | 98 | return sun4v_cpu_probe(); |
76 | sparc_fpu_type = "UltraSparc T1 integrated FPU"; | ||
77 | return; | ||
78 | } | ||
79 | 99 | ||
80 | fprs = fprs_read(); | 100 | fprs = fprs_read(); |
81 | fprs_write(FPRS_FEF); | 101 | fprs_write(FPRS_FEF); |