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-rw-r--r--arch/mips/kernel/proc.c183
1 files changed, 100 insertions, 83 deletions
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 0f159f30e89..037a44d962f 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -1,10 +1,8 @@
/*
- * linux/arch/mips/kernel/proc.c
- *
* Copyright (C) 1995, 1996, 2001 Ralf Baechle
- * Copyright (C) 2001 MIPS Technologies, Inc.
+ * Copyright (C) 2001, 2004 MIPS Technologies, Inc.
+ * Copyright (C) 2004 Maciej W. Rozycki
*/
-#include <linux/config.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -12,115 +10,134 @@
#include <asm/bootinfo.h>
#include <asm/cpu.h>
#include <asm/cpu-features.h>
+#include <asm/idle.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
-#include <asm/watch.h>
+#include <asm/prom.h>
unsigned int vced_count, vcei_count;
-static const char *cpu_name[] = {
- [CPU_UNKNOWN] "unknown",
- [CPU_R2000] "R2000",
- [CPU_R3000] "R3000",
- [CPU_R3000A] "R3000A",
- [CPU_R3041] "R3041",
- [CPU_R3051] "R3051",
- [CPU_R3052] "R3052",
- [CPU_R3081] "R3081",
- [CPU_R3081E] "R3081E",
- [CPU_R4000PC] "R4000PC",
- [CPU_R4000SC] "R4000SC",
- [CPU_R4000MC] "R4000MC",
- [CPU_R4200] "R4200",
- [CPU_R4400PC] "R4400PC",
- [CPU_R4400SC] "R4400SC",
- [CPU_R4400MC] "R4400MC",
- [CPU_R4600] "R4600",
- [CPU_R6000] "R6000",
- [CPU_R6000A] "R6000A",
- [CPU_R8000] "R8000",
- [CPU_R10000] "R10000",
- [CPU_R12000] "R12000",
- [CPU_R4300] "R4300",
- [CPU_R4650] "R4650",
- [CPU_R4700] "R4700",
- [CPU_R5000] "R5000",
- [CPU_R5000A] "R5000A",
- [CPU_R4640] "R4640",
- [CPU_NEVADA] "Nevada",
- [CPU_RM7000] "RM7000",
- [CPU_RM9000] "RM9000",
- [CPU_R5432] "R5432",
- [CPU_4KC] "MIPS 4Kc",
- [CPU_5KC] "MIPS 5Kc",
- [CPU_R4310] "R4310",
- [CPU_SB1] "SiByte SB1",
- [CPU_TX3912] "TX3912",
- [CPU_TX3922] "TX3922",
- [CPU_TX3927] "TX3927",
- [CPU_AU1000] "Au1000",
- [CPU_AU1500] "Au1500",
- [CPU_4KEC] "MIPS 4KEc",
- [CPU_4KSC] "MIPS 4KSc",
- [CPU_VR41XX] "NEC Vr41xx",
- [CPU_R5500] "R5500",
- [CPU_TX49XX] "TX49xx",
- [CPU_20KC] "MIPS 20Kc",
- [CPU_24K] "MIPS 24K",
- [CPU_25KF] "MIPS 25Kf",
- [CPU_VR4111] "NEC VR4111",
- [CPU_VR4121] "NEC VR4121",
- [CPU_VR4122] "NEC VR4122",
- [CPU_VR4131] "NEC VR4131",
- [CPU_VR4133] "NEC VR4133",
- [CPU_VR4181] "NEC VR4181",
- [CPU_VR4181A] "NEC VR4181A",
- [CPU_SR71000] "Sandcraft SR71000"
-};
+/*
+ * * No lock; only written during early bootup by CPU 0.
+ * */
+static RAW_NOTIFIER_HEAD(proc_cpuinfo_chain);
+int __ref register_proc_cpuinfo_notifier(struct notifier_block *nb)
+{
+ return raw_notifier_chain_register(&proc_cpuinfo_chain, nb);
+}
+
+int proc_cpuinfo_notifier_call_chain(unsigned long val, void *v)
+{
+ return raw_notifier_call_chain(&proc_cpuinfo_chain, val, v);
+}
static int show_cpuinfo(struct seq_file *m, void *v)
{
- unsigned int version = current_cpu_data.processor_id;
- unsigned int fp_vers = current_cpu_data.fpu_id;
+ struct proc_cpuinfo_notifier_args proc_cpuinfo_notifier_args;
unsigned long n = (unsigned long) v - 1;
+ unsigned int version = cpu_data[n].processor_id;
+ unsigned int fp_vers = cpu_data[n].fpu_id;
char fmt [64];
+ int i;
#ifdef CONFIG_SMP
- if (!cpu_isset(n, cpu_online_map))
+ if (!cpu_online(n))
return 0;
#endif
/*
* For the first processor also print the system type
*/
- if (n == 0)
+ if (n == 0) {
seq_printf(m, "system type\t\t: %s\n", get_system_type());
+ if (mips_get_machine_name())
+ seq_printf(m, "machine\t\t\t: %s\n",
+ mips_get_machine_name());
+ }
seq_printf(m, "processor\t\t: %ld\n", n);
sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
- cpu_has_fpu ? " FPU V%d.%d" : "");
- seq_printf(m, fmt, cpu_name[current_cpu_data.cputype <= CPU_LAST ?
- current_cpu_data.cputype : CPU_UNKNOWN],
- (version >> 4) & 0x0f, version & 0x0f,
- (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
- seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
- loops_per_jiffy / (500000/HZ),
- (loops_per_jiffy / (5000/HZ)) % 100);
+ cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
+ seq_printf(m, fmt, __cpu_name[n],
+ (version >> 4) & 0x0f, version & 0x0f,
+ (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
+ seq_printf(m, "BogoMIPS\t\t: %u.%02u\n",
+ cpu_data[n].udelay_val / (500000/HZ),
+ (cpu_data[n].udelay_val / (5000/HZ)) % 100);
seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
seq_printf(m, "microsecond timers\t: %s\n",
- cpu_has_counter ? "yes" : "no");
- seq_printf(m, "tlb_entries\t\t: %d\n", current_cpu_data.tlbsize);
+ cpu_has_counter ? "yes" : "no");
+ seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
seq_printf(m, "extra interrupt vector\t: %s\n",
- cpu_has_divec ? "yes" : "no");
- seq_printf(m, "hardware watchpoint\t: %s\n",
- cpu_has_watch ? "yes" : "no");
+ cpu_has_divec ? "yes" : "no");
+ seq_printf(m, "hardware watchpoint\t: %s",
+ cpu_has_watch ? "yes, " : "no\n");
+ if (cpu_has_watch) {
+ seq_printf(m, "count: %d, address/irw mask: [",
+ cpu_data[n].watch_reg_count);
+ for (i = 0; i < cpu_data[n].watch_reg_count; i++)
+ seq_printf(m, "%s0x%04x", i ? ", " : "" ,
+ cpu_data[n].watch_reg_masks[i]);
+ seq_printf(m, "]\n");
+ }
+
+ seq_printf(m, "isa\t\t\t: mips1");
+ if (cpu_has_mips_2)
+ seq_printf(m, "%s", " mips2");
+ if (cpu_has_mips_3)
+ seq_printf(m, "%s", " mips3");
+ if (cpu_has_mips_4)
+ seq_printf(m, "%s", " mips4");
+ if (cpu_has_mips_5)
+ seq_printf(m, "%s", " mips5");
+ if (cpu_has_mips32r1)
+ seq_printf(m, "%s", " mips32r1");
+ if (cpu_has_mips32r2)
+ seq_printf(m, "%s", " mips32r2");
+ if (cpu_has_mips64r1)
+ seq_printf(m, "%s", " mips64r1");
+ if (cpu_has_mips64r2)
+ seq_printf(m, "%s", " mips64r2");
+ seq_printf(m, "\n");
+
+ seq_printf(m, "ASEs implemented\t:");
+ if (cpu_has_mips16) seq_printf(m, "%s", " mips16");
+ if (cpu_has_mdmx) seq_printf(m, "%s", " mdmx");
+ if (cpu_has_mips3d) seq_printf(m, "%s", " mips3d");
+ if (cpu_has_smartmips) seq_printf(m, "%s", " smartmips");
+ if (cpu_has_dsp) seq_printf(m, "%s", " dsp");
+ if (cpu_has_dsp2) seq_printf(m, "%s", " dsp2");
+ if (cpu_has_mipsmt) seq_printf(m, "%s", " mt");
+ if (cpu_has_mmips) seq_printf(m, "%s", " micromips");
+ if (cpu_has_vz) seq_printf(m, "%s", " vz");
+ if (cpu_has_msa) seq_printf(m, "%s", " msa");
+ if (cpu_has_eva) seq_printf(m, "%s", " eva");
+ seq_printf(m, "\n");
+
+ if (cpu_has_mmips) {
+ seq_printf(m, "micromips kernel\t: %s\n",
+ (read_c0_config3() & MIPS_CONF3_ISA_OE) ? "yes" : "no");
+ }
+ seq_printf(m, "shadow register sets\t: %d\n",
+ cpu_data[n].srsets);
+ seq_printf(m, "kscratch registers\t: %d\n",
+ hweight8(cpu_data[n].kscratch_mask));
+ seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
- cpu_has_vce ? "%u" : "not available");
+ cpu_has_vce ? "%u" : "not available");
seq_printf(m, fmt, 'D', vced_count);
seq_printf(m, fmt, 'I', vcei_count);
+ proc_cpuinfo_notifier_args.m = m;
+ proc_cpuinfo_notifier_args.n = n;
+
+ raw_notifier_call_chain(&proc_cpuinfo_chain, 0,
+ &proc_cpuinfo_notifier_args);
+
+ seq_printf(m, "\n");
+
return 0;
}
@@ -141,7 +158,7 @@ static void c_stop(struct seq_file *m, void *v)
{
}
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-08 16:07:02 +0000