Move implementation of s390 diagnose code to diag specific folder.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
obj-y := head64.o traps.o time.o process.o early.o setup.o idle.o vtime.o
obj-y += processor.o syscall.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
-obj-y += debug.o irq.o ipl.o dis.o diag.o vdso.o cpufeature.o
+obj-y += debug.o irq.o ipl.o dis.o vdso.o cpufeature.o
obj-y += sysinfo.o lgr.o os_info.o ctlreg.o
obj-y += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o sthyi.o
obj-y += entry.o reipl.o kdebugfs.o alternative.o
+++ /dev/null
-// 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 <linux/vmalloc.h>
-#include <asm/asm-extable.h>
-#include <asm/diag.h>
-#include <asm/trace/diag.h>
-#include <asm/sections.h>
-#include <asm/asm.h>
-#include "entry.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_X08C] = { .code = 0x08c, .name = "Access 3270 Display Device Information" },
- [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_X318] = { .code = 0x318, .name = "CP Name and Version Codes" },
- [DIAG_STAT_X320] = { .code = 0x320, .name = "Certificate Store" },
- [DIAG_STAT_X324] = { .code = 0x324, .name = "Power Information Block" },
- [DIAG_STAT_X49C] = { .code = 0x49c, .name = "Warning-Track Interruption" },
- [DIAG_STAT_X500] = { .code = 0x500, .name = "Virtio Service" },
-};
-
-struct diag_ops __amode31_ref diag_amode31_ops = {
- .diag210 = _diag210_amode31,
- .diag26c = _diag26c_amode31,
- .diag14 = _diag14_amode31,
- .diag0c = _diag0c_amode31,
- .diag8c = _diag8c_amode31,
- .diag308_reset = _diag308_reset_amode31
-};
-
-static struct diag210 _diag210_tmp_amode31 __section(".amode31.data");
-struct diag210 __amode31_ref *__diag210_tmp_amode31 = &_diag210_tmp_amode31;
-
-static struct diag8c _diag8c_tmp_amode31 __section(".amode31.data");
-static struct diag8c __amode31_ref *__diag8c_tmp_amode31 = &_diag8c_tmp_amode31;
-
-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;
-
- cpus_read_lock();
- 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);
- }
- cpus_read_unlock();
- return 0;
-}
-
-static void *show_diag_stat_start(struct seq_file *m, loff_t *pos)
-{
- return *pos <= NR_DIAG_STAT ? (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,
-};
-
-DEFINE_SEQ_ATTRIBUTE(show_diag_stat);
-
-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 notrace 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 0c: Pseudo Timer
- */
-void diag0c(struct hypfs_diag0c_entry *data)
-{
- diag_stat_inc(DIAG_STAT_X00C);
- diag_amode31_ops.diag0c(virt_to_phys(data));
-}
-
-/*
- * Diagnose 14: Input spool file manipulation
- *
- * The subcode parameter determines the type of the first parameter rx.
- * Currently used are the following 3 subcommands:
- * 0x0: Read the Next Spool File Buffer (Data Record)
- * 0x28: Position a Spool File to the Designated Record
- * 0xfff: Retrieve Next File Descriptor
- *
- * For subcommands 0x0 and 0xfff, the value of the first parameter is
- * a virtual address of a memory buffer and needs virtual to physical
- * address translation. For other subcommands the rx parameter is not
- * a virtual address.
- */
-int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
-{
- diag_stat_inc(DIAG_STAT_X014);
- switch (subcode) {
- case 0x0:
- case 0xfff:
- rx = virt_to_phys((void *)rx);
- break;
- default:
- /* Do nothing */
- break;
- }
- return diag_amode31_ops.diag14(rx, ry1, subcode);
-}
-EXPORT_SYMBOL(diag14);
-
-#define DIAG204_BUSY_RC 8
-
-static inline int __diag204(unsigned long *subcode, unsigned long size, void *addr)
-{
- union register_pair rp = { .even = *subcode, .odd = size };
-
- asm volatile(
- " diag %[addr],%[rp],0x204\n"
- "0: nopr %%r7\n"
- EX_TABLE(0b,0b)
- : [rp] "+&d" (rp.pair) : [addr] "d" (addr) : "memory");
- *subcode = rp.even;
- return rp.odd;
-}
-
-/**
- * diag204() - Issue diagnose 204 call.
- * @subcode: Subcode of diagnose 204 to be executed.
- * @size: Size of area in pages which @area points to, if given.
- * @addr: Vmalloc'ed memory area where the result is written to.
- *
- * Execute diagnose 204 with the given subcode and write the result to the
- * memory area specified with @addr. For subcodes which do not write a
- * result to memory both @size and @addr must be zero. If @addr is
- * specified it must be page aligned and must have been allocated with
- * vmalloc(). Conversion to real / physical addresses will be handled by
- * this function if required.
- */
-int diag204(unsigned long subcode, unsigned long size, void *addr)
-{
- if (addr) {
- if (WARN_ON_ONCE(!is_vmalloc_addr(addr)))
- return -EINVAL;
- if (WARN_ON_ONCE(!IS_ALIGNED((unsigned long)addr, PAGE_SIZE)))
- return -EINVAL;
- }
- if ((subcode & DIAG204_SUBCODE_MASK) == DIAG204_SUBC_STIB4)
- addr = (void *)pfn_to_phys(vmalloc_to_pfn(addr));
- diag_stat_inc(DIAG_STAT_X204);
- size = __diag204(&subcode, size, addr);
- if (subcode == DIAG204_BUSY_RC)
- return -EBUSY;
- else if (subcode)
- return -EOPNOTSUPP;
- return size;
-}
-EXPORT_SYMBOL(diag204);
-
-/*
- * Diagnose 210: Get information about a virtual device
- */
-int diag210(struct diag210 *addr)
-{
- static DEFINE_SPINLOCK(diag210_lock);
- unsigned long flags;
- int ccode;
-
- spin_lock_irqsave(&diag210_lock, flags);
- *__diag210_tmp_amode31 = *addr;
-
- diag_stat_inc(DIAG_STAT_X210);
- ccode = diag_amode31_ops.diag210(__diag210_tmp_amode31);
-
- *addr = *__diag210_tmp_amode31;
- spin_unlock_irqrestore(&diag210_lock, flags);
-
- return ccode;
-}
-EXPORT_SYMBOL(diag210);
-
-/*
- * Diagnose 8C: Access 3270 Display Device Information
- */
-int diag8c(struct diag8c *addr, struct ccw_dev_id *devno)
-{
- static DEFINE_SPINLOCK(diag8c_lock);
- unsigned long flags;
- int ccode;
-
- spin_lock_irqsave(&diag8c_lock, flags);
-
- diag_stat_inc(DIAG_STAT_X08C);
- ccode = diag_amode31_ops.diag8c(__diag8c_tmp_amode31, devno, sizeof(*addr));
-
- *addr = *__diag8c_tmp_amode31;
- spin_unlock_irqrestore(&diag8c_lock, flags);
-
- return ccode;
-}
-EXPORT_SYMBOL(diag8c);
-
-int diag224(void *ptr)
-{
- unsigned long addr = __pa(ptr);
- int rc = -EOPNOTSUPP;
-
- diag_stat_inc(DIAG_STAT_X224);
- asm volatile("\n"
- " diag %[type],%[addr],0x224\n"
- "0: lhi %[rc],0\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : [rc] "+d" (rc)
- , "=m" (*(struct { char buf[PAGE_SIZE]; } *)ptr)
- : [type] "d" (0), [addr] "d" (addr));
- return rc;
-}
-EXPORT_SYMBOL(diag224);
-
-/*
- * Diagnose 26C: Access Certain System Information
- */
-int diag26c(void *req, void *resp, enum diag26c_sc subcode)
-{
- diag_stat_inc(DIAG_STAT_X26C);
- return diag_amode31_ops.diag26c(virt_to_phys(req), virt_to_phys(resp), subcode);
-}
-EXPORT_SYMBOL(diag26c);
-
-int diag49c(unsigned long subcode)
-{
- int cc;
-
- diag_stat_inc(DIAG_STAT_X49C);
- asm volatile(
- " diag %[subcode],0,0x49c\n"
- CC_IPM(cc)
- : CC_OUT(cc, cc)
- : [subcode] "d" (subcode)
- : CC_CLOBBER);
- return CC_TRANSFORM(cc);
-}
-EXPORT_SYMBOL(diag49c);
-obj-y := diag_misc.o diag324.o
+obj-y := diag_misc.o diag324.o diag.o
--- /dev/null
+// 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 <linux/vmalloc.h>
+#include <asm/asm-extable.h>
+#include <asm/diag.h>
+#include <asm/trace/diag.h>
+#include <asm/sections.h>
+#include <asm/asm.h>
+#include "../entry.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_X08C] = { .code = 0x08c, .name = "Access 3270 Display Device Information" },
+ [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_X318] = { .code = 0x318, .name = "CP Name and Version Codes" },
+ [DIAG_STAT_X320] = { .code = 0x320, .name = "Certificate Store" },
+ [DIAG_STAT_X324] = { .code = 0x324, .name = "Power Information Block" },
+ [DIAG_STAT_X49C] = { .code = 0x49c, .name = "Warning-Track Interruption" },
+ [DIAG_STAT_X500] = { .code = 0x500, .name = "Virtio Service" },
+};
+
+struct diag_ops __amode31_ref diag_amode31_ops = {
+ .diag210 = _diag210_amode31,
+ .diag26c = _diag26c_amode31,
+ .diag14 = _diag14_amode31,
+ .diag0c = _diag0c_amode31,
+ .diag8c = _diag8c_amode31,
+ .diag308_reset = _diag308_reset_amode31
+};
+
+static struct diag210 _diag210_tmp_amode31 __section(".amode31.data");
+struct diag210 __amode31_ref *__diag210_tmp_amode31 = &_diag210_tmp_amode31;
+
+static struct diag8c _diag8c_tmp_amode31 __section(".amode31.data");
+static struct diag8c __amode31_ref *__diag8c_tmp_amode31 = &_diag8c_tmp_amode31;
+
+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;
+
+ cpus_read_lock();
+ 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);
+ }
+ cpus_read_unlock();
+ return 0;
+}
+
+static void *show_diag_stat_start(struct seq_file *m, loff_t *pos)
+{
+ return *pos <= NR_DIAG_STAT ? (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,
+};
+
+DEFINE_SEQ_ATTRIBUTE(show_diag_stat);
+
+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 notrace 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 0c: Pseudo Timer
+ */
+void diag0c(struct hypfs_diag0c_entry *data)
+{
+ diag_stat_inc(DIAG_STAT_X00C);
+ diag_amode31_ops.diag0c(virt_to_phys(data));
+}
+
+/*
+ * Diagnose 14: Input spool file manipulation
+ *
+ * The subcode parameter determines the type of the first parameter rx.
+ * Currently used are the following 3 subcommands:
+ * 0x0: Read the Next Spool File Buffer (Data Record)
+ * 0x28: Position a Spool File to the Designated Record
+ * 0xfff: Retrieve Next File Descriptor
+ *
+ * For subcommands 0x0 and 0xfff, the value of the first parameter is
+ * a virtual address of a memory buffer and needs virtual to physical
+ * address translation. For other subcommands the rx parameter is not
+ * a virtual address.
+ */
+int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
+{
+ diag_stat_inc(DIAG_STAT_X014);
+ switch (subcode) {
+ case 0x0:
+ case 0xfff:
+ rx = virt_to_phys((void *)rx);
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ return diag_amode31_ops.diag14(rx, ry1, subcode);
+}
+EXPORT_SYMBOL(diag14);
+
+#define DIAG204_BUSY_RC 8
+
+static inline int __diag204(unsigned long *subcode, unsigned long size, void *addr)
+{
+ union register_pair rp = { .even = *subcode, .odd = size };
+
+ asm volatile(
+ " diag %[addr],%[rp],0x204\n"
+ "0: nopr %%r7\n"
+ EX_TABLE(0b,0b)
+ : [rp] "+&d" (rp.pair) : [addr] "d" (addr) : "memory");
+ *subcode = rp.even;
+ return rp.odd;
+}
+
+/**
+ * diag204() - Issue diagnose 204 call.
+ * @subcode: Subcode of diagnose 204 to be executed.
+ * @size: Size of area in pages which @area points to, if given.
+ * @addr: Vmalloc'ed memory area where the result is written to.
+ *
+ * Execute diagnose 204 with the given subcode and write the result to the
+ * memory area specified with @addr. For subcodes which do not write a
+ * result to memory both @size and @addr must be zero. If @addr is
+ * specified it must be page aligned and must have been allocated with
+ * vmalloc(). Conversion to real / physical addresses will be handled by
+ * this function if required.
+ */
+int diag204(unsigned long subcode, unsigned long size, void *addr)
+{
+ if (addr) {
+ if (WARN_ON_ONCE(!is_vmalloc_addr(addr)))
+ return -EINVAL;
+ if (WARN_ON_ONCE(!IS_ALIGNED((unsigned long)addr, PAGE_SIZE)))
+ return -EINVAL;
+ }
+ if ((subcode & DIAG204_SUBCODE_MASK) == DIAG204_SUBC_STIB4)
+ addr = (void *)pfn_to_phys(vmalloc_to_pfn(addr));
+ diag_stat_inc(DIAG_STAT_X204);
+ size = __diag204(&subcode, size, addr);
+ if (subcode == DIAG204_BUSY_RC)
+ return -EBUSY;
+ else if (subcode)
+ return -EOPNOTSUPP;
+ return size;
+}
+EXPORT_SYMBOL(diag204);
+
+/*
+ * Diagnose 210: Get information about a virtual device
+ */
+int diag210(struct diag210 *addr)
+{
+ static DEFINE_SPINLOCK(diag210_lock);
+ unsigned long flags;
+ int ccode;
+
+ spin_lock_irqsave(&diag210_lock, flags);
+ *__diag210_tmp_amode31 = *addr;
+
+ diag_stat_inc(DIAG_STAT_X210);
+ ccode = diag_amode31_ops.diag210(__diag210_tmp_amode31);
+
+ *addr = *__diag210_tmp_amode31;
+ spin_unlock_irqrestore(&diag210_lock, flags);
+
+ return ccode;
+}
+EXPORT_SYMBOL(diag210);
+
+/*
+ * Diagnose 8C: Access 3270 Display Device Information
+ */
+int diag8c(struct diag8c *addr, struct ccw_dev_id *devno)
+{
+ static DEFINE_SPINLOCK(diag8c_lock);
+ unsigned long flags;
+ int ccode;
+
+ spin_lock_irqsave(&diag8c_lock, flags);
+
+ diag_stat_inc(DIAG_STAT_X08C);
+ ccode = diag_amode31_ops.diag8c(__diag8c_tmp_amode31, devno, sizeof(*addr));
+
+ *addr = *__diag8c_tmp_amode31;
+ spin_unlock_irqrestore(&diag8c_lock, flags);
+
+ return ccode;
+}
+EXPORT_SYMBOL(diag8c);
+
+int diag224(void *ptr)
+{
+ unsigned long addr = __pa(ptr);
+ int rc = -EOPNOTSUPP;
+
+ diag_stat_inc(DIAG_STAT_X224);
+ asm volatile("\n"
+ " diag %[type],%[addr],0x224\n"
+ "0: lhi %[rc],0\n"
+ "1:\n"
+ EX_TABLE(0b,1b)
+ : [rc] "+d" (rc)
+ , "=m" (*(struct { char buf[PAGE_SIZE]; } *)ptr)
+ : [type] "d" (0), [addr] "d" (addr));
+ return rc;
+}
+EXPORT_SYMBOL(diag224);
+
+/*
+ * Diagnose 26C: Access Certain System Information
+ */
+int diag26c(void *req, void *resp, enum diag26c_sc subcode)
+{
+ diag_stat_inc(DIAG_STAT_X26C);
+ return diag_amode31_ops.diag26c(virt_to_phys(req), virt_to_phys(resp), subcode);
+}
+EXPORT_SYMBOL(diag26c);
+
+int diag49c(unsigned long subcode)
+{
+ int cc;
+
+ diag_stat_inc(DIAG_STAT_X49C);
+ asm volatile(
+ " diag %[subcode],0,0x49c\n"
+ CC_IPM(cc)
+ : CC_OUT(cc, cc)
+ : [subcode] "d" (subcode)
+ : CC_CLOBBER);
+ return CC_TRANSFORM(cc);
+}
+EXPORT_SYMBOL(diag49c);
projects / linux-block.git / commitdiff