Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 332 insertions, 0 deletions

diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
new file mode 100644
index 0000000000..8eba5a1ed6
--- /dev/null
+++ b/arch/mips/kernel/proc.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 1995, 1996, 2001  Ralf Baechle
+ *  Copyright (C) 2001, 2004  MIPS Technologies, Inc.
+ *  Copyright (C) 2004	Maciej W. Rozycki
+ */
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#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/prom.h>
+
+unsigned int vced_count, vcei_count;
+
+/*
+ * 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)
+{
+	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_online(n))
+		return 0;
+#endif
+
+	/*
+	 * For the first processor also print the system type
+	 */
+	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_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", 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",
+		      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_puts(m, "]\n");
+	}
+
+	seq_puts(m, "isa\t\t\t:");
+	if (cpu_has_mips_1)
+		seq_puts(m, " mips1");
+	if (cpu_has_mips_2)
+		seq_puts(m, " mips2");
+	if (cpu_has_mips_3)
+		seq_puts(m, " mips3");
+	if (cpu_has_mips_4)
+		seq_puts(m, " mips4");
+	if (cpu_has_mips_5)
+		seq_puts(m, " mips5");
+	if (cpu_has_mips32r1)
+		seq_puts(m, " mips32r1");
+	if (cpu_has_mips32r2)
+		seq_puts(m, " mips32r2");
+	if (cpu_has_mips32r5)
+		seq_puts(m, " mips32r5");
+	if (cpu_has_mips32r6)
+		seq_puts(m, " mips32r6");
+	if (cpu_has_mips64r1)
+		seq_puts(m, " mips64r1");
+	if (cpu_has_mips64r2)
+		seq_puts(m, " mips64r2");
+	if (cpu_has_mips64r5)
+		seq_puts(m, " mips64r5");
+	if (cpu_has_mips64r6)
+		seq_puts(m, " mips64r6");
+	seq_puts(m, "\n");
+
+	seq_puts(m, "ASEs implemented\t:");
+	if (cpu_has_mips16)
+		seq_puts(m, " mips16");
+	if (cpu_has_mips16e2)
+		seq_puts(m, " mips16e2");
+	if (cpu_has_mdmx)
+		seq_puts(m, " mdmx");
+	if (cpu_has_mips3d)
+		seq_puts(m, " mips3d");
+	if (cpu_has_smartmips)
+		seq_puts(m, " smartmips");
+	if (cpu_has_dsp)
+		seq_puts(m, " dsp");
+	if (cpu_has_dsp2)
+		seq_puts(m, " dsp2");
+	if (cpu_has_dsp3)
+		seq_puts(m, " dsp3");
+	if (cpu_has_mipsmt)
+		seq_puts(m, " mt");
+	if (cpu_has_mmips)
+		seq_puts(m, " micromips");
+	if (cpu_has_vz)
+		seq_puts(m, " vz");
+	if (cpu_has_msa)
+		seq_puts(m, " msa");
+	if (cpu_has_eva)
+		seq_puts(m, " eva");
+	if (cpu_has_htw)
+		seq_puts(m, " htw");
+	if (cpu_has_xpa)
+		seq_puts(m, " xpa");
+	if (cpu_has_loongson_mmi)
+		seq_puts(m, " loongson-mmi");
+	if (cpu_has_loongson_cam)
+		seq_puts(m, " loongson-cam");
+	if (cpu_has_loongson_ext)
+		seq_puts(m, " loongson-ext");
+	if (cpu_has_loongson_ext2)
+		seq_puts(m, " loongson-ext2");
+	seq_puts(m, "\n");
+
+	if (cpu_has_mmips) {
+		seq_printf(m, "micromips kernel\t: %s\n",
+		      (read_c0_config3() & MIPS_CONF3_ISA_OE) ?  "yes" : "no");
+	}
+
+	seq_puts(m, "Options implemented\t:");
+	if (cpu_has_tlb)
+		seq_puts(m, " tlb");
+	if (cpu_has_ftlb)
+		seq_puts(m, " ftlb");
+	if (cpu_has_tlbinv)
+		seq_puts(m, " tlbinv");
+	if (cpu_has_segments)
+		seq_puts(m, " segments");
+	if (cpu_has_rixiex)
+		seq_puts(m, " rixiex");
+	if (cpu_has_ldpte)
+		seq_puts(m, " ldpte");
+	if (cpu_has_maar)
+		seq_puts(m, " maar");
+	if (cpu_has_rw_llb)
+		seq_puts(m, " rw_llb");
+	if (cpu_has_4kex)
+		seq_puts(m, " 4kex");
+	if (cpu_has_3k_cache)
+		seq_puts(m, " 3k_cache");
+	if (cpu_has_4k_cache)
+		seq_puts(m, " 4k_cache");
+	if (cpu_has_octeon_cache)
+		seq_puts(m, " octeon_cache");
+	if (raw_cpu_has_fpu)
+		seq_puts(m, " fpu");
+	if (cpu_has_32fpr)
+		seq_puts(m, " 32fpr");
+	if (cpu_has_cache_cdex_p)
+		seq_puts(m, " cache_cdex_p");
+	if (cpu_has_cache_cdex_s)
+		seq_puts(m, " cache_cdex_s");
+	if (cpu_has_prefetch)
+		seq_puts(m, " prefetch");
+	if (cpu_has_mcheck)
+		seq_puts(m, " mcheck");
+	if (cpu_has_ejtag)
+		seq_puts(m, " ejtag");
+	if (cpu_has_llsc)
+		seq_puts(m, " llsc");
+	if (cpu_has_guestctl0ext)
+		seq_puts(m, " guestctl0ext");
+	if (cpu_has_guestctl1)
+		seq_puts(m, " guestctl1");
+	if (cpu_has_guestctl2)
+		seq_puts(m, " guestctl2");
+	if (cpu_has_guestid)
+		seq_puts(m, " guestid");
+	if (cpu_has_drg)
+		seq_puts(m, " drg");
+	if (cpu_has_rixi)
+		seq_puts(m, " rixi");
+	if (cpu_has_lpa)
+		seq_puts(m, " lpa");
+	if (cpu_has_mvh)
+		seq_puts(m, " mvh");
+	if (cpu_has_vtag_icache)
+		seq_puts(m, " vtag_icache");
+	if (cpu_has_dc_aliases)
+		seq_puts(m, " dc_aliases");
+	if (cpu_has_ic_fills_f_dc)
+		seq_puts(m, " ic_fills_f_dc");
+	if (cpu_has_pindexed_dcache)
+		seq_puts(m, " pindexed_dcache");
+	if (cpu_has_userlocal)
+		seq_puts(m, " userlocal");
+	if (cpu_has_nofpuex)
+		seq_puts(m, " nofpuex");
+	if (cpu_has_vint)
+		seq_puts(m, " vint");
+	if (cpu_has_veic)
+		seq_puts(m, " veic");
+	if (cpu_has_inclusive_pcaches)
+		seq_puts(m, " inclusive_pcaches");
+	if (cpu_has_perf_cntr_intr_bit)
+		seq_puts(m, " perf_cntr_intr_bit");
+	if (cpu_has_ufr)
+		seq_puts(m, " ufr");
+	if (cpu_has_fre)
+		seq_puts(m, " fre");
+	if (cpu_has_cdmm)
+		seq_puts(m, " cdmm");
+	if (cpu_has_small_pages)
+		seq_puts(m, " small_pages");
+	if (cpu_has_nan_legacy)
+		seq_puts(m, " nan_legacy");
+	if (cpu_has_nan_2008)
+		seq_puts(m, " nan_2008");
+	if (cpu_has_ebase_wg)
+		seq_puts(m, " ebase_wg");
+	if (cpu_has_badinstr)
+		seq_puts(m, " badinstr");
+	if (cpu_has_badinstrp)
+		seq_puts(m, " badinstrp");
+	if (cpu_has_contextconfig)
+		seq_puts(m, " contextconfig");
+	if (cpu_has_perf)
+		seq_puts(m, " perf");
+	if (cpu_has_mac2008_only)
+		seq_puts(m, " mac2008_only");
+	if (cpu_has_ftlbparex)
+		seq_puts(m, " ftlbparex");
+	if (cpu_has_gsexcex)
+		seq_puts(m, " gsexcex");
+	if (cpu_has_shared_ftlb_ram)
+		seq_puts(m, " shared_ftlb_ram");
+	if (cpu_has_shared_ftlb_entries)
+		seq_puts(m, " shared_ftlb_entries");
+	if (cpu_has_mipsmt_pertccounters)
+		seq_puts(m, " mipsmt_pertccounters");
+	if (cpu_has_mmid)
+		seq_puts(m, " mmid");
+	if (cpu_has_mm_sysad)
+		seq_puts(m, " mm_sysad");
+	if (cpu_has_mm_full)
+		seq_puts(m, " mm_full");
+	seq_puts(m, "\n");
+
+	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, "package\t\t\t: %d\n", cpu_data[n].package);
+	seq_printf(m, "core\t\t\t: %d\n", cpu_core(&cpu_data[n]));
+
+#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
+	if (cpu_has_mipsmt)
+		seq_printf(m, "VPE\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
+	else if (cpu_has_vp)
+		seq_printf(m, "VP\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
+#endif
+
+	sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
+		      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_puts(m, "\n");
+
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	unsigned long i = *pos;
+
+	return i < nr_cpu_ids ? (void *) (i + 1) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};