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-rw-r--r--arch/s390/kernel/diag.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
deleted file mode 100644
index 53a5316cc4b7..000000000000
--- a/arch/s390/kernel/diag.c
+++ /dev/null
@@ -1,268 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Implementation of s390 diagnose codes
- *
- * Copyright IBM Corp. 2007
- * Author(s): Michael Holzheu <holzheu@de.ibm.com>
- */
-
-#include <linux/export.h>
-#include <linux/init.h>
-#include <linux/cpu.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <asm/diag.h>
-#include <asm/trace/diag.h>
-
-struct diag_stat {
- unsigned int counter[NR_DIAG_STAT];
-};
-
-static DEFINE_PER_CPU(struct diag_stat, diag_stat);
-
-struct diag_desc {
- int code;
- char *name;
-};
-
-static const struct diag_desc diag_map[NR_DIAG_STAT] = {
- [DIAG_STAT_X008] = { .code = 0x008, .name = "Console Function" },
- [DIAG_STAT_X00C] = { .code = 0x00c, .name = "Pseudo Timer" },
- [DIAG_STAT_X010] = { .code = 0x010, .name = "Release Pages" },
- [DIAG_STAT_X014] = { .code = 0x014, .name = "Spool File Services" },
- [DIAG_STAT_X044] = { .code = 0x044, .name = "Voluntary Timeslice End" },
- [DIAG_STAT_X064] = { .code = 0x064, .name = "NSS Manipulation" },
- [DIAG_STAT_X09C] = { .code = 0x09c, .name = "Relinquish Timeslice" },
- [DIAG_STAT_X0DC] = { .code = 0x0dc, .name = "Appldata Control" },
- [DIAG_STAT_X204] = { .code = 0x204, .name = "Logical-CPU Utilization" },
- [DIAG_STAT_X210] = { .code = 0x210, .name = "Device Information" },
- [DIAG_STAT_X224] = { .code = 0x224, .name = "EBCDIC-Name Table" },
- [DIAG_STAT_X250] = { .code = 0x250, .name = "Block I/O" },
- [DIAG_STAT_X258] = { .code = 0x258, .name = "Page-Reference Services" },
- [DIAG_STAT_X26C] = { .code = 0x26c, .name = "Certain System Information" },
- [DIAG_STAT_X288] = { .code = 0x288, .name = "Time Bomb" },
- [DIAG_STAT_X2C4] = { .code = 0x2c4, .name = "FTP Services" },
- [DIAG_STAT_X2FC] = { .code = 0x2fc, .name = "Guest Performance Data" },
- [DIAG_STAT_X304] = { .code = 0x304, .name = "Partition-Resource Service" },
- [DIAG_STAT_X308] = { .code = 0x308, .name = "List-Directed IPL" },
- [DIAG_STAT_X500] = { .code = 0x500, .name = "Virtio Service" },
-};
-
-static int show_diag_stat(struct seq_file *m, void *v)
-{
- struct diag_stat *stat;
- unsigned long n = (unsigned long) v - 1;
- int cpu, prec, tmp;
-
- get_online_cpus();
- if (n == 0) {
- seq_puts(m, " ");
-
- for_each_online_cpu(cpu) {
- prec = 10;
- for (tmp = 10; cpu >= tmp; tmp *= 10)
- prec--;
- seq_printf(m, "%*s%d", prec, "CPU", cpu);
- }
- seq_putc(m, '\n');
- } else if (n <= NR_DIAG_STAT) {
- seq_printf(m, "diag %03x:", diag_map[n-1].code);
- for_each_online_cpu(cpu) {
- stat = &per_cpu(diag_stat, cpu);
- seq_printf(m, " %10u", stat->counter[n-1]);
- }
- seq_printf(m, " %s\n", diag_map[n-1].name);
- }
- put_online_cpus();
- return 0;
-}
-
-static void *show_diag_stat_start(struct seq_file *m, loff_t *pos)
-{
- return *pos <= nr_cpu_ids ? (void *)((unsigned long) *pos + 1) : NULL;
-}
-
-static void *show_diag_stat_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return show_diag_stat_start(m, pos);
-}
-
-static void show_diag_stat_stop(struct seq_file *m, void *v)
-{
-}
-
-static const struct seq_operations show_diag_stat_sops = {
- .start = show_diag_stat_start,
- .next = show_diag_stat_next,
- .stop = show_diag_stat_stop,
- .show = show_diag_stat,
-};
-
-static int show_diag_stat_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &show_diag_stat_sops);
-}
-
-static const struct file_operations show_diag_stat_fops = {
- .open = show_diag_stat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-
-static int __init show_diag_stat_init(void)
-{
- debugfs_create_file("diag_stat", 0400, NULL, NULL,
- &show_diag_stat_fops);
- return 0;
-}
-
-device_initcall(show_diag_stat_init);
-
-void diag_stat_inc(enum diag_stat_enum nr)
-{
- this_cpu_inc(diag_stat.counter[nr]);
- trace_s390_diagnose(diag_map[nr].code);
-}
-EXPORT_SYMBOL(diag_stat_inc);
-
-void diag_stat_inc_norecursion(enum diag_stat_enum nr)
-{
- this_cpu_inc(diag_stat.counter[nr]);
- trace_s390_diagnose_norecursion(diag_map[nr].code);
-}
-EXPORT_SYMBOL(diag_stat_inc_norecursion);
-
-/*
- * Diagnose 14: Input spool file manipulation
- */
-static inline int __diag14(unsigned long rx, unsigned long ry1,
- unsigned long subcode)
-{
- register unsigned long _ry1 asm("2") = ry1;
- register unsigned long _ry2 asm("3") = subcode;
- int rc = 0;
-
- asm volatile(
- " sam31\n"
- " diag %2,2,0x14\n"
- " sam64\n"
- " ipm %0\n"
- " srl %0,28\n"
- : "=d" (rc), "+d" (_ry2)
- : "d" (rx), "d" (_ry1)
- : "cc");
-
- return rc;
-}
-
-int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
-{
- diag_stat_inc(DIAG_STAT_X014);
- return __diag14(rx, ry1, subcode);
-}
-EXPORT_SYMBOL(diag14);
-
-static inline int __diag204(unsigned long *subcode, unsigned long size, void *addr)
-{
- register unsigned long _subcode asm("0") = *subcode;
- register unsigned long _size asm("1") = size;
-
- asm volatile(
- " diag %2,%0,0x204\n"
- "0: nopr %%r7\n"
- EX_TABLE(0b,0b)
- : "+d" (_subcode), "+d" (_size) : "d" (addr) : "memory");
- *subcode = _subcode;
- return _size;
-}
-
-int diag204(unsigned long subcode, unsigned long size, void *addr)
-{
- diag_stat_inc(DIAG_STAT_X204);
- size = __diag204(&subcode, size, addr);
- if (subcode)
- return -1;
- return size;
-}
-EXPORT_SYMBOL(diag204);
-
-/*
- * Diagnose 210: Get information about a virtual device
- */
-int diag210(struct diag210 *addr)
-{
- /*
- * diag 210 needs its data below the 2GB border, so we
- * use a static data area to be sure
- */
- static struct diag210 diag210_tmp;
- static DEFINE_SPINLOCK(diag210_lock);
- unsigned long flags;
- int ccode;
-
- spin_lock_irqsave(&diag210_lock, flags);
- diag210_tmp = *addr;
-
- diag_stat_inc(DIAG_STAT_X210);
- asm volatile(
- " lhi %0,-1\n"
- " sam31\n"
- " diag %1,0,0x210\n"
- "0: ipm %0\n"
- " srl %0,28\n"
- "1: sam64\n"
- EX_TABLE(0b, 1b)
- : "=&d" (ccode) : "a" (&diag210_tmp) : "cc", "memory");
-
- *addr = diag210_tmp;
- spin_unlock_irqrestore(&diag210_lock, flags);
-
- return ccode;
-}
-EXPORT_SYMBOL(diag210);
-
-int diag224(void *ptr)
-{
- int rc = -EOPNOTSUPP;
-
- diag_stat_inc(DIAG_STAT_X224);
- asm volatile(
- " diag %1,%2,0x224\n"
- "0: lhi %0,0x0\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : "+d" (rc) :"d" (0), "d" (ptr) : "memory");
- return rc;
-}
-EXPORT_SYMBOL(diag224);
-
-/*
- * Diagnose 26C: Access Certain System Information
- */
-static inline int __diag26c(void *req, void *resp, enum diag26c_sc subcode)
-{
- register unsigned long _req asm("2") = (addr_t) req;
- register unsigned long _resp asm("3") = (addr_t) resp;
- register unsigned long _subcode asm("4") = subcode;
- register unsigned long _rc asm("5") = -EOPNOTSUPP;
-
- asm volatile(
- " sam31\n"
- " diag %[rx],%[ry],0x26c\n"
- "0: sam64\n"
- EX_TABLE(0b,0b)
- : "+d" (_rc)
- : [rx] "d" (_req), "d" (_resp), [ry] "d" (_subcode)
- : "cc", "memory");
- return _rc;
-}
-
-int diag26c(void *req, void *resp, enum diag26c_sc subcode)
-{
- diag_stat_inc(DIAG_STAT_X26C);
- return __diag26c(req, resp, subcode);
-}
-EXPORT_SYMBOL(diag26c);
generated by cgit (git 2.34.1) at 2025-12-24 23:27:53 +0000