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-rw-r--r--arch/ia64/kernel/palinfo.c942
1 files changed, 0 insertions, 942 deletions
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
deleted file mode 100644
index b9ae093bfe..0000000000
--- a/arch/ia64/kernel/palinfo.c
+++ /dev/null
@@ -1,942 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * palinfo.c
- *
- * Prints processor specific information reported by PAL.
- * This code is based on specification of PAL as of the
- * Intel IA-64 Architecture Software Developer's Manual v1.0.
- *
- *
- * Copyright (C) 2000-2001, 2003 Hewlett-Packard Co
- * Stephane Eranian <eranian@hpl.hp.com>
- * Copyright (C) 2004 Intel Corporation
- * Ashok Raj <ashok.raj@intel.com>
- *
- * 05/26/2000 S.Eranian initial release
- * 08/21/2000 S.Eranian updated to July 2000 PAL specs
- * 02/05/2001 S.Eranian fixed module support
- * 10/23/2001 S.Eranian updated pal_perf_mon_info bug fixes
- * 03/24/2004 Ashok Raj updated to work with CPU Hotplug
- * 10/26/2006 Russ Anderson updated processor features to rev 2.2 spec
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/efi.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/cpumask.h>
-
-#include <asm/pal.h>
-#include <asm/sal.h>
-#include <asm/page.h>
-#include <asm/processor.h>
-#include <linux/smp.h>
-
-MODULE_AUTHOR("Stephane Eranian <eranian@hpl.hp.com>");
-MODULE_DESCRIPTION("/proc interface to IA-64 PAL");
-MODULE_LICENSE("GPL");
-
-#define PALINFO_VERSION "0.5"
-
-typedef int (*palinfo_func_t)(struct seq_file *);
-
-typedef struct {
- const char *name; /* name of the proc entry */
- palinfo_func_t proc_read; /* function to call for reading */
- struct proc_dir_entry *entry; /* registered entry (removal) */
-} palinfo_entry_t;
-
-
-/*
- * A bunch of string array to get pretty printing
- */
-
-static const char *cache_types[] = {
- "", /* not used */
- "Instruction",
- "Data",
- "Data/Instruction" /* unified */
-};
-
-static const char *cache_mattrib[]={
- "WriteThrough",
- "WriteBack",
- "", /* reserved */
- "" /* reserved */
-};
-
-static const char *cache_st_hints[]={
- "Temporal, level 1",
- "Reserved",
- "Reserved",
- "Non-temporal, all levels",
- "Reserved",
- "Reserved",
- "Reserved",
- "Reserved"
-};
-
-static const char *cache_ld_hints[]={
- "Temporal, level 1",
- "Non-temporal, level 1",
- "Reserved",
- "Non-temporal, all levels",
- "Reserved",
- "Reserved",
- "Reserved",
- "Reserved"
-};
-
-static const char *rse_hints[]={
- "enforced lazy",
- "eager stores",
- "eager loads",
- "eager loads and stores"
-};
-
-#define RSE_HINTS_COUNT ARRAY_SIZE(rse_hints)
-
-static const char *mem_attrib[]={
- "WB", /* 000 */
- "SW", /* 001 */
- "010", /* 010 */
- "011", /* 011 */
- "UC", /* 100 */
- "UCE", /* 101 */
- "WC", /* 110 */
- "NaTPage" /* 111 */
-};
-
-/*
- * Take a 64bit vector and produces a string such that
- * if bit n is set then 2^n in clear text is generated. The adjustment
- * to the right unit is also done.
- *
- * Input:
- * - a pointer to a buffer to hold the string
- * - a 64-bit vector
- * Output:
- * - a pointer to the end of the buffer
- *
- */
-static void bitvector_process(struct seq_file *m, u64 vector)
-{
- int i,j;
- static const char *units[]={ "", "K", "M", "G", "T" };
-
- for (i=0, j=0; i < 64; i++ , j=i/10) {
- if (vector & 0x1)
- seq_printf(m, "%d%s ", 1 << (i-j*10), units[j]);
- vector >>= 1;
- }
-}
-
-/*
- * Take a 64bit vector and produces a string such that
- * if bit n is set then register n is present. The function
- * takes into account consecutive registers and prints out ranges.
- *
- * Input:
- * - a pointer to a buffer to hold the string
- * - a 64-bit vector
- * Ouput:
- * - a pointer to the end of the buffer
- *
- */
-static void bitregister_process(struct seq_file *m, u64 *reg_info, int max)
-{
- int i, begin, skip = 0;
- u64 value = reg_info[0];
-
- value >>= i = begin = ffs(value) - 1;
-
- for(; i < max; i++ ) {
-
- if (i != 0 && (i%64) == 0) value = *++reg_info;
-
- if ((value & 0x1) == 0 && skip == 0) {
- if (begin <= i - 2)
- seq_printf(m, "%d-%d ", begin, i-1);
- else
- seq_printf(m, "%d ", i-1);
- skip = 1;
- begin = -1;
- } else if ((value & 0x1) && skip == 1) {
- skip = 0;
- begin = i;
- }
- value >>=1;
- }
- if (begin > -1) {
- if (begin < 127)
- seq_printf(m, "%d-127", begin);
- else
- seq_puts(m, "127");
- }
-}
-
-static int power_info(struct seq_file *m)
-{
- s64 status;
- u64 halt_info_buffer[8];
- pal_power_mgmt_info_u_t *halt_info =(pal_power_mgmt_info_u_t *)halt_info_buffer;
- int i;
-
- status = ia64_pal_halt_info(halt_info);
- if (status != 0) return 0;
-
- for (i=0; i < 8 ; i++ ) {
- if (halt_info[i].pal_power_mgmt_info_s.im == 1) {
- seq_printf(m,
- "Power level %d:\n"
- "\tentry_latency : %d cycles\n"
- "\texit_latency : %d cycles\n"
- "\tpower consumption : %d mW\n"
- "\tCache+TLB coherency : %s\n", i,
- halt_info[i].pal_power_mgmt_info_s.entry_latency,
- halt_info[i].pal_power_mgmt_info_s.exit_latency,
- halt_info[i].pal_power_mgmt_info_s.power_consumption,
- halt_info[i].pal_power_mgmt_info_s.co ? "Yes" : "No");
- } else {
- seq_printf(m,"Power level %d: not implemented\n", i);
- }
- }
- return 0;
-}
-
-static int cache_info(struct seq_file *m)
-{
- unsigned long i, levels, unique_caches;
- pal_cache_config_info_t cci;
- int j, k;
- long status;
-
- if ((status = ia64_pal_cache_summary(&levels, &unique_caches)) != 0) {
- printk(KERN_ERR "ia64_pal_cache_summary=%ld\n", status);
- return 0;
- }
-
- seq_printf(m, "Cache levels : %ld\nUnique caches : %ld\n\n",
- levels, unique_caches);
-
- for (i=0; i < levels; i++) {
- for (j=2; j >0 ; j--) {
- /* even without unification some level may not be present */
- if ((status=ia64_pal_cache_config_info(i,j, &cci)) != 0)
- continue;
-
- seq_printf(m,
- "%s Cache level %lu:\n"
- "\tSize : %u bytes\n"
- "\tAttributes : ",
- cache_types[j+cci.pcci_unified], i+1,
- cci.pcci_cache_size);
-
- if (cci.pcci_unified)
- seq_puts(m, "Unified ");
-
- seq_printf(m, "%s\n", cache_mattrib[cci.pcci_cache_attr]);
-
- seq_printf(m,
- "\tAssociativity : %d\n"
- "\tLine size : %d bytes\n"
- "\tStride : %d bytes\n",
- cci.pcci_assoc,
- 1<<cci.pcci_line_size,
- 1<<cci.pcci_stride);
- if (j == 1)
- seq_puts(m, "\tStore latency : N/A\n");
- else
- seq_printf(m, "\tStore latency : %d cycle(s)\n",
- cci.pcci_st_latency);
-
- seq_printf(m,
- "\tLoad latency : %d cycle(s)\n"
- "\tStore hints : ", cci.pcci_ld_latency);
-
- for(k=0; k < 8; k++ ) {
- if ( cci.pcci_st_hints & 0x1)
- seq_printf(m, "[%s]", cache_st_hints[k]);
- cci.pcci_st_hints >>=1;
- }
- seq_puts(m, "\n\tLoad hints : ");
-
- for(k=0; k < 8; k++ ) {
- if (cci.pcci_ld_hints & 0x1)
- seq_printf(m, "[%s]", cache_ld_hints[k]);
- cci.pcci_ld_hints >>=1;
- }
- seq_printf(m,
- "\n\tAlias boundary : %d byte(s)\n"
- "\tTag LSB : %d\n"
- "\tTag MSB : %d\n",
- 1<<cci.pcci_alias_boundary, cci.pcci_tag_lsb,
- cci.pcci_tag_msb);
-
- /* when unified, data(j=2) is enough */
- if (cci.pcci_unified)
- break;
- }
- }
- return 0;
-}
-
-
-static int vm_info(struct seq_file *m)
-{
- u64 tr_pages =0, vw_pages=0, tc_pages;
- u64 attrib;
- pal_vm_info_1_u_t vm_info_1;
- pal_vm_info_2_u_t vm_info_2;
- pal_tc_info_u_t tc_info;
- ia64_ptce_info_t ptce;
- const char *sep;
- int i, j;
- long status;
-
- if ((status = ia64_pal_vm_summary(&vm_info_1, &vm_info_2)) !=0) {
- printk(KERN_ERR "ia64_pal_vm_summary=%ld\n", status);
- } else {
-
- seq_printf(m,
- "Physical Address Space : %d bits\n"
- "Virtual Address Space : %d bits\n"
- "Protection Key Registers(PKR) : %d\n"
- "Implemented bits in PKR.key : %d\n"
- "Hash Tag ID : 0x%x\n"
- "Size of RR.rid : %d\n"
- "Max Purges : ",
- vm_info_1.pal_vm_info_1_s.phys_add_size,
- vm_info_2.pal_vm_info_2_s.impl_va_msb+1,
- vm_info_1.pal_vm_info_1_s.max_pkr+1,
- vm_info_1.pal_vm_info_1_s.key_size,
- vm_info_1.pal_vm_info_1_s.hash_tag_id,
- vm_info_2.pal_vm_info_2_s.rid_size);
- if (vm_info_2.pal_vm_info_2_s.max_purges == PAL_MAX_PURGES)
- seq_puts(m, "unlimited\n");
- else
- seq_printf(m, "%d\n",
- vm_info_2.pal_vm_info_2_s.max_purges ?
- vm_info_2.pal_vm_info_2_s.max_purges : 1);
- }
-
- if (ia64_pal_mem_attrib(&attrib) == 0) {
- seq_puts(m, "Supported memory attributes : ");
- sep = "";
- for (i = 0; i < 8; i++) {
- if (attrib & (1 << i)) {
- seq_printf(m, "%s%s", sep, mem_attrib[i]);
- sep = ", ";
- }
- }
- seq_putc(m, '\n');
- }
-
- if ((status = ia64_pal_vm_page_size(&tr_pages, &vw_pages)) !=0) {
- printk(KERN_ERR "ia64_pal_vm_page_size=%ld\n", status);
- } else {
-
- seq_printf(m,
- "\nTLB walker : %simplemented\n"
- "Number of DTR : %d\n"
- "Number of ITR : %d\n"
- "TLB insertable page sizes : ",
- vm_info_1.pal_vm_info_1_s.vw ? "" : "not ",
- vm_info_1.pal_vm_info_1_s.max_dtr_entry+1,
- vm_info_1.pal_vm_info_1_s.max_itr_entry+1);
-
- bitvector_process(m, tr_pages);
-
- seq_puts(m, "\nTLB purgeable page sizes : ");
-
- bitvector_process(m, vw_pages);
- }
-
- if ((status = ia64_get_ptce(&ptce)) != 0) {
- printk(KERN_ERR "ia64_get_ptce=%ld\n", status);
- } else {
- seq_printf(m,
- "\nPurge base address : 0x%016lx\n"
- "Purge outer loop count : %d\n"
- "Purge inner loop count : %d\n"
- "Purge outer loop stride : %d\n"
- "Purge inner loop stride : %d\n",
- ptce.base, ptce.count[0], ptce.count[1],
- ptce.stride[0], ptce.stride[1]);
-
- seq_printf(m,
- "TC Levels : %d\n"
- "Unique TC(s) : %d\n",
- vm_info_1.pal_vm_info_1_s.num_tc_levels,
- vm_info_1.pal_vm_info_1_s.max_unique_tcs);
-
- for(i=0; i < vm_info_1.pal_vm_info_1_s.num_tc_levels; i++) {
- for (j=2; j>0 ; j--) {
- tc_pages = 0; /* just in case */
-
- /* even without unification, some levels may not be present */
- if ((status=ia64_pal_vm_info(i,j, &tc_info, &tc_pages)) != 0)
- continue;
-
- seq_printf(m,
- "\n%s Translation Cache Level %d:\n"
- "\tHash sets : %d\n"
- "\tAssociativity : %d\n"
- "\tNumber of entries : %d\n"
- "\tFlags : ",
- cache_types[j+tc_info.tc_unified], i+1,
- tc_info.tc_num_sets,
- tc_info.tc_associativity,
- tc_info.tc_num_entries);
-
- if (tc_info.tc_pf)
- seq_puts(m, "PreferredPageSizeOptimized ");
- if (tc_info.tc_unified)
- seq_puts(m, "Unified ");
- if (tc_info.tc_reduce_tr)
- seq_puts(m, "TCReduction");
-
- seq_puts(m, "\n\tSupported page sizes: ");
-
- bitvector_process(m, tc_pages);
-
- /* when unified date (j=2) is enough */
- if (tc_info.tc_unified)
- break;
- }
- }
- }
-
- seq_putc(m, '\n');
- return 0;
-}
-
-
-static int register_info(struct seq_file *m)
-{
- u64 reg_info[2];
- u64 info;
- unsigned long phys_stacked;
- pal_hints_u_t hints;
- unsigned long iregs, dregs;
- static const char * const info_type[] = {
- "Implemented AR(s)",
- "AR(s) with read side-effects",
- "Implemented CR(s)",
- "CR(s) with read side-effects",
- };
-
- for(info=0; info < 4; info++) {
- if (ia64_pal_register_info(info, &reg_info[0], &reg_info[1]) != 0)
- return 0;
- seq_printf(m, "%-32s : ", info_type[info]);
- bitregister_process(m, reg_info, 128);
- seq_putc(m, '\n');
- }
-
- if (ia64_pal_rse_info(&phys_stacked, &hints) == 0)
- seq_printf(m,
- "RSE stacked physical registers : %ld\n"
- "RSE load/store hints : %ld (%s)\n",
- phys_stacked, hints.ph_data,
- hints.ph_data < RSE_HINTS_COUNT ? rse_hints[hints.ph_data]: "(??)");
-
- if (ia64_pal_debug_info(&iregs, &dregs))
- return 0;
-
- seq_printf(m,
- "Instruction debug register pairs : %ld\n"
- "Data debug register pairs : %ld\n", iregs, dregs);
-
- return 0;
-}
-
-static const char *const proc_features_0[]={ /* Feature set 0 */
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
- NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
- NULL,NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL,
- "Unimplemented instruction address fault",
- "INIT, PMI, and LINT pins",
- "Simple unimplemented instr addresses",
- "Variable P-state performance",
- "Virtual machine features implemented",
- "XIP,XPSR,XFS implemented",
- "XR1-XR3 implemented",
- "Disable dynamic predicate prediction",
- "Disable processor physical number",
- "Disable dynamic data cache prefetch",
- "Disable dynamic inst cache prefetch",
- "Disable dynamic branch prediction",
- NULL, NULL, NULL, NULL,
- "Disable P-states",
- "Enable MCA on Data Poisoning",
- "Enable vmsw instruction",
- "Enable extern environmental notification",
- "Disable BINIT on processor time-out",
- "Disable dynamic power management (DPM)",
- "Disable coherency",
- "Disable cache",
- "Enable CMCI promotion",
- "Enable MCA to BINIT promotion",
- "Enable MCA promotion",
- "Enable BERR promotion"
-};
-
-static const char *const proc_features_16[]={ /* Feature set 16 */
- "Disable ETM",
- "Enable ETM",
- "Enable MCA on half-way timer",
- "Enable snoop WC",
- NULL,
- "Enable Fast Deferral",
- "Disable MCA on memory aliasing",
- "Enable RSB",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- "DP system processor",
- "Low Voltage",
- "HT supported",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL
-};
-
-static const char *const *const proc_features[]={
- proc_features_0,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
- proc_features_16,
- NULL, NULL, NULL, NULL,
-};
-
-static void feature_set_info(struct seq_file *m, u64 avail, u64 status, u64 control,
- unsigned long set)
-{
- const char *const *vf, *const *v;
- int i;
-
- vf = v = proc_features[set];
- for(i=0; i < 64; i++, avail >>=1, status >>=1, control >>=1) {
-
- if (!(control)) /* No remaining bits set */
- break;
- if (!(avail & 0x1)) /* Print only bits that are available */
- continue;
- if (vf)
- v = vf + i;
- if ( v && *v ) {
- seq_printf(m, "%-40s : %s %s\n", *v,
- avail & 0x1 ? (status & 0x1 ?
- "On " : "Off"): "",
- avail & 0x1 ? (control & 0x1 ?
- "Ctrl" : "NoCtrl"): "");
- } else {
- seq_printf(m, "Feature set %2ld bit %2d\t\t\t"
- " : %s %s\n",
- set, i,
- avail & 0x1 ? (status & 0x1 ?
- "On " : "Off"): "",
- avail & 0x1 ? (control & 0x1 ?
- "Ctrl" : "NoCtrl"): "");
- }
- }
-}
-
-static int processor_info(struct seq_file *m)
-{
- u64 avail=1, status=1, control=1, feature_set=0;
- s64 ret;
-
- do {
- ret = ia64_pal_proc_get_features(&avail, &status, &control,
- feature_set);
- if (ret < 0)
- return 0;
-
- if (ret == 1) {
- feature_set++;
- continue;
- }
-
- feature_set_info(m, avail, status, control, feature_set);
- feature_set++;
- } while(1);
-
- return 0;
-}
-
-static const char *const bus_features[]={
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
- NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
- NULL,NULL,
- "Request Bus Parking",
- "Bus Lock Mask",
- "Enable Half Transfer",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
- "Enable Cache Line Repl. Shared",
- "Enable Cache Line Repl. Exclusive",
- "Disable Transaction Queuing",
- "Disable Response Error Checking",
- "Disable Bus Error Checking",
- "Disable Bus Requester Internal Error Signalling",
- "Disable Bus Requester Error Signalling",
- "Disable Bus Initialization Event Checking",
- "Disable Bus Initialization Event Signalling",
- "Disable Bus Address Error Checking",
- "Disable Bus Address Error Signalling",
- "Disable Bus Data Error Checking"
-};
-
-
-static int bus_info(struct seq_file *m)
-{
- const char *const *v = bus_features;
- pal_bus_features_u_t av, st, ct;
- u64 avail, status, control;
- int i;
- s64 ret;
-
- if ((ret=ia64_pal_bus_get_features(&av, &st, &ct)) != 0)
- return 0;
-
- avail = av.pal_bus_features_val;
- status = st.pal_bus_features_val;
- control = ct.pal_bus_features_val;
-
- for(i=0; i < 64; i++, v++, avail >>=1, status >>=1, control >>=1) {
- if ( ! *v )
- continue;
- seq_printf(m, "%-48s : %s%s %s\n", *v,
- avail & 0x1 ? "" : "NotImpl",
- avail & 0x1 ? (status & 0x1 ? "On" : "Off"): "",
- avail & 0x1 ? (control & 0x1 ? "Ctrl" : "NoCtrl"): "");
- }
- return 0;
-}
-
-static int version_info(struct seq_file *m)
-{
- pal_version_u_t min_ver, cur_ver;
-
- if (ia64_pal_version(&min_ver, &cur_ver) != 0)
- return 0;
-
- seq_printf(m,
- "PAL_vendor : 0x%02x (min=0x%02x)\n"
- "PAL_A : %02x.%02x (min=%02x.%02x)\n"
- "PAL_B : %02x.%02x (min=%02x.%02x)\n",
- cur_ver.pal_version_s.pv_pal_vendor,
- min_ver.pal_version_s.pv_pal_vendor,
- cur_ver.pal_version_s.pv_pal_a_model,
- cur_ver.pal_version_s.pv_pal_a_rev,
- min_ver.pal_version_s.pv_pal_a_model,
- min_ver.pal_version_s.pv_pal_a_rev,
- cur_ver.pal_version_s.pv_pal_b_model,
- cur_ver.pal_version_s.pv_pal_b_rev,
- min_ver.pal_version_s.pv_pal_b_model,
- min_ver.pal_version_s.pv_pal_b_rev);
- return 0;
-}
-
-static int frequency_info(struct seq_file *m)
-{
- struct pal_freq_ratio proc, itc, bus;
- unsigned long base;
-
- if (ia64_pal_freq_base(&base) == -1)
- seq_puts(m, "Output clock : not implemented\n");
- else
- seq_printf(m, "Output clock : %ld ticks/s\n", base);
-
- if (ia64_pal_freq_ratios(&proc, &bus, &itc) != 0) return 0;
-
- seq_printf(m,
- "Processor/Clock ratio : %d/%d\n"
- "Bus/Clock ratio : %d/%d\n"
- "ITC/Clock ratio : %d/%d\n",
- proc.num, proc.den, bus.num, bus.den, itc.num, itc.den);
- return 0;
-}
-
-static int tr_info(struct seq_file *m)
-{
- long status;
- pal_tr_valid_u_t tr_valid;
- u64 tr_buffer[4];
- pal_vm_info_1_u_t vm_info_1;
- pal_vm_info_2_u_t vm_info_2;
- unsigned long i, j;
- unsigned long max[3], pgm;
- struct ifa_reg {
- unsigned long valid:1;
- unsigned long ig:11;
- unsigned long vpn:52;
- } *ifa_reg;
- struct itir_reg {
- unsigned long rv1:2;
- unsigned long ps:6;
- unsigned long key:24;
- unsigned long rv2:32;
- } *itir_reg;
- struct gr_reg {
- unsigned long p:1;
- unsigned long rv1:1;
- unsigned long ma:3;
- unsigned long a:1;
- unsigned long d:1;
- unsigned long pl:2;
- unsigned long ar:3;
- unsigned long ppn:38;
- unsigned long rv2:2;
- unsigned long ed:1;
- unsigned long ig:11;
- } *gr_reg;
- struct rid_reg {
- unsigned long ig1:1;
- unsigned long rv1:1;
- unsigned long ig2:6;
- unsigned long rid:24;
- unsigned long rv2:32;
- } *rid_reg;
-
- if ((status = ia64_pal_vm_summary(&vm_info_1, &vm_info_2)) !=0) {
- printk(KERN_ERR "ia64_pal_vm_summary=%ld\n", status);
- return 0;
- }
- max[0] = vm_info_1.pal_vm_info_1_s.max_itr_entry+1;
- max[1] = vm_info_1.pal_vm_info_1_s.max_dtr_entry+1;
-
- for (i=0; i < 2; i++ ) {
- for (j=0; j < max[i]; j++) {
-
- status = ia64_pal_tr_read(j, i, tr_buffer, &tr_valid);
- if (status != 0) {
- printk(KERN_ERR "palinfo: pal call failed on tr[%lu:%lu]=%ld\n",
- i, j, status);
- continue;
- }
-
- ifa_reg = (struct ifa_reg *)&tr_buffer[2];
-
- if (ifa_reg->valid == 0)
- continue;
-
- gr_reg = (struct gr_reg *)tr_buffer;
- itir_reg = (struct itir_reg *)&tr_buffer[1];
- rid_reg = (struct rid_reg *)&tr_buffer[3];
-
- pgm = -1 << (itir_reg->ps - 12);
- seq_printf(m,
- "%cTR%lu: av=%d pv=%d dv=%d mv=%d\n"
- "\tppn : 0x%lx\n"
- "\tvpn : 0x%lx\n"
- "\tps : ",
- "ID"[i], j,
- tr_valid.pal_tr_valid_s.access_rights_valid,
- tr_valid.pal_tr_valid_s.priv_level_valid,
- tr_valid.pal_tr_valid_s.dirty_bit_valid,
- tr_valid.pal_tr_valid_s.mem_attr_valid,
- (gr_reg->ppn & pgm)<< 12, (ifa_reg->vpn & pgm)<< 12);
-
- bitvector_process(m, 1<< itir_reg->ps);
-
- seq_printf(m,
- "\n\tpl : %d\n"
- "\tar : %d\n"
- "\trid : %x\n"
- "\tp : %d\n"
- "\tma : %d\n"
- "\td : %d\n",
- gr_reg->pl, gr_reg->ar, rid_reg->rid, gr_reg->p, gr_reg->ma,
- gr_reg->d);
- }
- }
- return 0;
-}
-
-
-
-/*
- * List {name,function} pairs for every entry in /proc/palinfo/cpu*
- */
-static const palinfo_entry_t palinfo_entries[]={
- { "version_info", version_info, },
- { "vm_info", vm_info, },
- { "cache_info", cache_info, },
- { "power_info", power_info, },
- { "register_info", register_info, },
- { "processor_info", processor_info, },
- { "frequency_info", frequency_info, },
- { "bus_info", bus_info },
- { "tr_info", tr_info, }
-};
-
-#define NR_PALINFO_ENTRIES (int) ARRAY_SIZE(palinfo_entries)
-
-static struct proc_dir_entry *palinfo_dir;
-
-/*
- * This data structure is used to pass which cpu,function is being requested
- * It must fit in a 64bit quantity to be passed to the proc callback routine
- *
- * In SMP mode, when we get a request for another CPU, we must call that
- * other CPU using IPI and wait for the result before returning.
- */
-typedef union {
- u64 value;
- struct {
- unsigned req_cpu: 32; /* for which CPU this info is */
- unsigned func_id: 32; /* which function is requested */
- } pal_func_cpu;
-} pal_func_cpu_u_t;
-
-#define req_cpu pal_func_cpu.req_cpu
-#define func_id pal_func_cpu.func_id
-
-#ifdef CONFIG_SMP
-
-/*
- * used to hold information about final function to call
- */
-typedef struct {
- palinfo_func_t func; /* pointer to function to call */
- struct seq_file *m; /* buffer to store results */
- int ret; /* return value from call */
-} palinfo_smp_data_t;
-
-
-/*
- * this function does the actual final call and he called
- * from the smp code, i.e., this is the palinfo callback routine
- */
-static void
-palinfo_smp_call(void *info)
-{
- palinfo_smp_data_t *data = (palinfo_smp_data_t *)info;
- data->ret = (*data->func)(data->m);
-}
-
-/*
- * function called to trigger the IPI, we need to access a remote CPU
- * Return:
- * 0 : error or nothing to output
- * otherwise how many bytes in the "page" buffer were written
- */
-static
-int palinfo_handle_smp(struct seq_file *m, pal_func_cpu_u_t *f)
-{
- palinfo_smp_data_t ptr;
- int ret;
-
- ptr.func = palinfo_entries[f->func_id].proc_read;
- ptr.m = m;
- ptr.ret = 0; /* just in case */
-
-
- /* will send IPI to other CPU and wait for completion of remote call */
- if ((ret=smp_call_function_single(f->req_cpu, palinfo_smp_call, &ptr, 1))) {
- printk(KERN_ERR "palinfo: remote CPU call from %d to %d on function %d: "
- "error %d\n", smp_processor_id(), f->req_cpu, f->func_id, ret);
- return 0;
- }
- return ptr.ret;
-}
-#else /* ! CONFIG_SMP */
-static
-int palinfo_handle_smp(struct seq_file *m, pal_func_cpu_u_t *f)
-{
- printk(KERN_ERR "palinfo: should not be called with non SMP kernel\n");
- return 0;
-}
-#endif /* CONFIG_SMP */
-
-/*
- * Entry point routine: all calls go through this function
- */
-static int proc_palinfo_show(struct seq_file *m, void *v)
-{
- pal_func_cpu_u_t *f = (pal_func_cpu_u_t *)&m->private;
-
- /*
- * in SMP mode, we may need to call another CPU to get correct
- * information. PAL, by definition, is processor specific
- */
- if (f->req_cpu == get_cpu())
- (*palinfo_entries[f->func_id].proc_read)(m);
- else
- palinfo_handle_smp(m, f);
-
- put_cpu();
- return 0;
-}
-
-static int palinfo_add_proc(unsigned int cpu)
-{
- pal_func_cpu_u_t f;
- struct proc_dir_entry *cpu_dir;
- int j;
- char cpustr[3+4+1]; /* cpu numbers are up to 4095 on itanic */
- sprintf(cpustr, "cpu%d", cpu);
-
- cpu_dir = proc_mkdir(cpustr, palinfo_dir);
- if (!cpu_dir)
- return -EINVAL;
-
- f.req_cpu = cpu;
-
- for (j=0; j < NR_PALINFO_ENTRIES; j++) {
- f.func_id = j;
- proc_create_single_data(palinfo_entries[j].name, 0, cpu_dir,
- proc_palinfo_show, (void *)f.value);
- }
- return 0;
-}
-
-static int palinfo_del_proc(unsigned int hcpu)
-{
- char cpustr[3+4+1]; /* cpu numbers are up to 4095 on itanic */
-
- sprintf(cpustr, "cpu%d", hcpu);
- remove_proc_subtree(cpustr, palinfo_dir);
- return 0;
-}
-
-static enum cpuhp_state hp_online;
-
-static int __init palinfo_init(void)
-{
- int i = 0;
-
- printk(KERN_INFO "PAL Information Facility v%s\n", PALINFO_VERSION);
- palinfo_dir = proc_mkdir("pal", NULL);
- if (!palinfo_dir)
- return -ENOMEM;
-
- i = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "ia64/palinfo:online",
- palinfo_add_proc, palinfo_del_proc);
- if (i < 0) {
- remove_proc_subtree("pal", NULL);
- return i;
- }
- hp_online = i;
- return 0;
-}
-
-static void __exit palinfo_exit(void)
-{
- cpuhp_remove_state(hp_online);
- remove_proc_subtree("pal", NULL);
-}
-
-module_init(palinfo_init);
-module_exit(palinfo_exit);