In /proc/cpuinfo, we keep "cpu model" as is, since GCC should use it for -march=native. Besides, we add __cpu_full_name[] to describe the processor in a more human-readable manner. The full name is displayed as "model name" in cpuinfo, which is needed by some userspace tools such as gnome-system-monitor. This is only used by Loongson now. Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx> --- arch/mips/include/asm/cpu-info.h | 2 ++ arch/mips/kernel/cpu-probe.c | 12 ++++++++++++ arch/mips/kernel/proc.c | 4 ++++ 3 files changed, 18 insertions(+) diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index b090aa5..c673092 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -103,7 +103,9 @@ extern void cpu_probe(void); extern void cpu_report(void); extern const char *__cpu_name[]; +extern const char *__cpu_full_name[]; #define cpu_name_string() __cpu_name[raw_smp_processor_id()] +#define cpu_full_name_string() __cpu_full_name[raw_smp_processor_id()] struct seq_file; struct notifier_block; diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index b766952..1acad54 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1174,6 +1174,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) set_elf_platform(cpu, "loongson2e"); set_isa(c, MIPS_CPU_ISA_III); c->fpu_msk31 |= FPU_CSR_CONDX; + __cpu_full_name[cpu] = "ICT Loongson-2E"; break; case PRID_REV_LOONGSON2F: c->cputype = CPU_LOONGSON2; @@ -1181,19 +1182,28 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) set_elf_platform(cpu, "loongson2f"); set_isa(c, MIPS_CPU_ISA_III); c->fpu_msk31 |= FPU_CSR_CONDX; + __cpu_full_name[cpu] = "ICT Loongson-2F"; break; case PRID_REV_LOONGSON3A_R1: c->cputype = CPU_LOONGSON3; __cpu_name[cpu] = "ICT Loongson-3"; set_elf_platform(cpu, "loongson3a"); set_isa(c, MIPS_CPU_ISA_M64R1); + __cpu_full_name[cpu] = "ICT Loongson-3A R1 (Loongson-3A1000)"; break; case PRID_REV_LOONGSON3B_R1: + c->cputype = CPU_LOONGSON3; + __cpu_name[cpu] = "ICT Loongson-3"; + set_elf_platform(cpu, "loongson3b"); + set_isa(c, MIPS_CPU_ISA_M64R1); + __cpu_full_name[cpu] = "ICT Loongson-3B R1 (Loongson-3B1000)"; + break; case PRID_REV_LOONGSON3B_R2: c->cputype = CPU_LOONGSON3; __cpu_name[cpu] = "ICT Loongson-3"; set_elf_platform(cpu, "loongson3b"); set_isa(c, MIPS_CPU_ISA_M64R1); + __cpu_full_name[cpu] = "ICT Loongson-3B R2 (Loongson-3B1500)"; break; } @@ -1527,6 +1537,7 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "ICT Loongson-3"; set_elf_platform(cpu, "loongson3a"); set_isa(c, MIPS_CPU_ISA_M64R2); + __cpu_full_name[cpu] = "ICT Loongson-3A R2 (Loongson-3A2000)"; break; } @@ -1646,6 +1657,7 @@ EXPORT_SYMBOL(__ua_limit); #endif const char *__cpu_name[NR_CPUS]; +const char *__cpu_full_name[NR_CPUS]; const char *__elf_platform; void cpu_probe(void) diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index 97dc01b..4f4a094 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -14,6 +14,7 @@ #include <asm/mipsregs.h> #include <asm/processor.h> #include <asm/prom.h> +#include <asm/time.h> unsigned int vced_count, vcei_count; @@ -62,6 +63,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, fmt, __cpu_name[n], (version >> 4) & 0x0f, version & 0x0f, (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); + if (__cpu_full_name[n]) + seq_printf(m, "model name\t\t: %s @ %uMHz\n", + __cpu_full_name[n], mips_hpt_frequency / 500000); seq_printf(m, "BogoMIPS\t\t: %u.%02u\n", cpu_data[n].udelay_val / (500000/HZ), (cpu_data[n].udelay_val / (5000/HZ)) % 100); -- 2.7.0
