Pending patches in the s390 2.6.25 merge queue.

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diff -urpN linux-2.6/drivers/s390/char/sclp_cpi_sys.h linux-2.6-patched/drivers/s390/char/sclp_cpi_sys.h
@@ -0,0 +1,15 @@
+/*
+ *  drivers/s390/char/sclp_cpi_sys.h
+ *    SCLP control program identification sysfs interface
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Michael Ernst <[email protected]>
+ */
+
+#ifndef __SCLP_CPI_SYS_H__
+#define __SCLP_CPI_SYS_H__
+
+int sclp_cpi_set_data(const char *system, const char *sysplex,
+		      const char *type, u64 level);
+
+#endif	 /* __SCLP_CPI_SYS_H__ */

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diff -urpN linux-2.6/drivers/s390/cio/airq.h linux-2.6-patched/drivers/s390/cio/airq.h
@@ -1,10 +0,0 @@
-#ifndef S390_AINTERRUPT_H
-#define S390_AINTERRUPT_H
-
-typedef	int (*adapter_int_handler_t)(void);
-
-extern int s390_register_adapter_interrupt(adapter_int_handler_t handler);
-extern int s390_unregister_adapter_interrupt(adapter_int_handler_t handler);
-extern void do_adapter_IO (void);
-
-#endif

diff -urpN linux-2.6/drivers/s390/cio/cio.c linux-2.6-patched/drivers/s390/cio/cio.c
@@ -23,7 +23,7 @@
 #include <asm/reset.h>
 #include <asm/ipl.h>
 #include <asm/chpid.h>
-#include "airq.h"
+#include <asm/airq.h>
 #include "cio.h"
 #include "css.h"
 #include "chsc.h"

diff -urpN linux-2.6/drivers/s390/cio/cio.h linux-2.6-patched/drivers/s390/cio/cio.h
@@ -125,6 +125,7 @@ extern int cio_get_options (struct subch
 extern int cio_modify (struct subchannel *);
 
 int cio_create_sch_lock(struct subchannel *);
+void do_adapter_IO(void);
 
 /* Use with care. */
 #ifdef CONFIG_CCW_CONSOLE

diff -urpN linux-2.6/drivers/s390/cio/qdio.c linux-2.6-patched/drivers/s390/cio/qdio.c
@@ -48,11 +48,11 @@
 #include <asm/debug.h>
 #include <asm/s390_rdev.h>
 #include <asm/qdio.h>
+#include <asm/airq.h>
 
 #include "cio.h"
 #include "css.h"
 #include "device.h"
-#include "airq.h"
 #include "qdio.h"
 #include "ioasm.h"
 #include "chsc.h"

@@ -96,7 +96,7 @@ static debug_info_t *qdio_dbf_slsb_in;
 static volatile struct qdio_q *tiq_list=NULL; /* volatile as it could change
 						 during a while loop */
 static DEFINE_SPINLOCK(ttiq_list_lock);
-static int register_thinint_result;
+static void *tiqdio_ind;
 static void tiqdio_tl(unsigned long);
 static DECLARE_TASKLET(tiqdio_tasklet,tiqdio_tl,0);
 

@@ -399,7 +399,7 @@ qdio_get_indicator(void)
 {
 	int i;
 
-	for (i=1;i<INDICATORS_PER_CACHELINE;i++)
+	for (i = 0; i < INDICATORS_PER_CACHELINE; i++)
 		if (!indicator_used[i]) {
 			indicator_used[i]=1;
 			return indicators+i;

@@ -1911,8 +1911,7 @@ qdio_fill_thresholds(struct qdio_irq *ir
 	}
 }
 
-static int
-tiqdio_thinint_handler(void)
+static void tiqdio_thinint_handler(void *ind, void *drv_data)
 {
 	QDIO_DBF_TEXT4(0,trace,"thin_int");
 

@@ -1925,7 +1924,6 @@ tiqdio_thinint_handler(void)
 		tiqdio_clear_global_summary();
 
 	tiqdio_inbound_checks();
-	return 0;
 }
 
 static void

@@ -2445,7 +2443,7 @@ tiqdio_set_subchannel_ind(struct qdio_ir
 		real_addr_dev_st_chg_ind=0;
 	} else {
 		real_addr_local_summary_bit=
-			virt_to_phys((volatile void *)indicators);
+			virt_to_phys((volatile void *)tiqdio_ind);
 		real_addr_dev_st_chg_ind=
 			virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind);
 	}

@@ -3740,23 +3738,25 @@ static void
 tiqdio_register_thinints(void)
 {
 	char dbf_text[20];
-	register_thinint_result=
-		s390_register_adapter_interrupt(&tiqdio_thinint_handler);
-	if (register_thinint_result) {
-		sprintf(dbf_text,"regthn%x",(register_thinint_result&0xff));
+
+	tiqdio_ind =
+		s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL);
+	if (IS_ERR(tiqdio_ind)) {
+		sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind));
 		QDIO_DBF_TEXT0(0,setup,dbf_text);
 		QDIO_PRINT_ERR("failed to register adapter handler " \
-			       "(rc=%i).\nAdapter interrupts might " \
+			       "(rc=%li).\nAdapter interrupts might " \
 			       "not work. Continuing.\n",
-			       register_thinint_result);
+			       PTR_ERR(tiqdio_ind));
+		tiqdio_ind = NULL;
 	}
 }
 
 static void
 tiqdio_unregister_thinints(void)
 {
-	if (!register_thinint_result)
-		s390_unregister_adapter_interrupt(&tiqdio_thinint_handler);
+	if (tiqdio_ind)
+		s390_unregister_adapter_interrupt(tiqdio_ind);
 }
 
 static int

@@ -3768,8 +3768,8 @@ qdio_get_qdio_memory(void)
 	for (i=1;i<INDICATORS_PER_CACHELINE;i++)
 		indicator_used[i]=0;
 	indicators = kzalloc(sizeof(__u32)*(INDICATORS_PER_CACHELINE),
-				   GFP_KERNEL);
-       	if (!indicators)
+			     GFP_KERNEL);
+	if (!indicators)
 		return -ENOMEM;
 	return 0;
 }

@@ -3780,7 +3780,6 @@ qdio_release_qdio_memory(void)
 	kfree(indicators);
 }
 
-
 static void
 qdio_unregister_dbf_views(void)
 {

diff -urpN linux-2.6/include/asm-s390/airq.h linux-2.6-patched/include/asm-s390/airq.h
@@ -0,0 +1,19 @@
+/*
+ *  include/asm-s390/airq.h
+ *
+ *    Copyright IBM Corp. 2002,2007
+ *    Author(s): Ingo Adlung <[email protected]>
+ *		 Cornelia Huck <[email protected]>
+ *		 Arnd Bergmann <[email protected]>
+ *		 Peter Oberparleiter <[email protected]>
+ */
+
+#ifndef _ASM_S390_AIRQ_H
+#define _ASM_S390_AIRQ_H
+
+typedef void (*adapter_int_handler_t)(void *, void *);
+
+void *s390_register_adapter_interrupt(adapter_int_handler_t, void *);
+void s390_unregister_adapter_interrupt(void *);
+
+#endif /* _ASM_S390_AIRQ_H */

diff -urpN linux-2.6/drivers/s390/char/sclp.c linux-2.6-patched/drivers/s390/char/sclp.c
@@ -95,7 +95,7 @@ static volatile enum sclp_mask_state_t {
 static void sclp_process_queue(void);
 static void __sclp_make_read_req(void);
 static int sclp_init_mask(int calculate);
-static int sclp_init(void);
+int sclp_init(void);
 
 /* Perform service call. Return 0 on success, non-zero otherwise. */
 int

@@ -877,8 +877,7 @@ static struct notifier_block sclp_reboot
 
 /* Initialize SCLP driver. Return zero if driver is operational, non-zero
  * otherwise. */
-static int
-sclp_init(void)
+int sclp_init(void)
 {
 	unsigned long flags;
 	int rc;

@@ -930,10 +929,3 @@ sclp_init(void)
 	sclp_init_mask(1);
 	return 0;
 }
-
-static __init int sclp_initcall(void)
-{
-	return sclp_init();
-}
-
-arch_initcall(sclp_initcall);

diff -urpN linux-2.6/init/main.c linux-2.6-patched/init/main.c
@@ -94,6 +94,11 @@ extern void acpi_early_init(void);
 #else
 static inline void acpi_early_init(void) { }
 #endif
+#ifdef CONFIG_S390
+extern int sclp_init(void);
+#else
+static inline int sclp_init(void) {return 0;}
+#endif
 #ifndef CONFIG_DEBUG_RODATA
 static inline void mark_rodata_ro(void) { }
 #endif

@@ -643,6 +648,7 @@ asmlinkage void __init start_kernel(void
 	check_bugs();
 
 	acpi_early_init(); /* before LAPIC and SMP init */
+	sclp_init();
 
 	/* Do the rest non-__init'ed, we're now alive */
 	rest_init();

diff -urpN linux-2.6/arch/s390/kernel/early.c linux-2.6-patched/arch/s390/kernel/early.c
@@ -276,8 +276,9 @@ void __init startup_init(void)
 	create_kernel_nss();
 	sort_main_extable();
 	setup_lowcore_early();
-	sclp_readinfo_early();
+	sclp_read_info_early();
 	sclp_facilities_detect();
+	sclp_read_cpu_info_early();
 	memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
 	/*

diff -urpN linux-2.6/arch/s390/kernel/setup.c linux-2.6-patched/arch/s390/kernel/setup.c
@@ -922,7 +922,7 @@ setup_arch(char **cmdline_p)
 
 void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
 {
-   printk("cpu %d "
+   printk(KERN_INFO "cpu %d "
 #ifdef CONFIG_SMP
            "phys_idx=%d "
 #endif

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diff -urpN linux-2.6/drivers/s390/char/sclp.h linux-2.6-patched/drivers/s390/char/sclp.h
@@ -56,8 +56,6 @@ typedef unsigned int sclp_cmdw_t;
 #define SCLP_CMDW_READ_EVENT_DATA	0x00770005
 #define SCLP_CMDW_WRITE_EVENT_DATA	0x00760005
 #define SCLP_CMDW_WRITE_EVENT_MASK	0x00780005
-#define SCLP_CMDW_READ_SCP_INFO		0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
 
 #define GDS_ID_MDSMU		0x1310
 #define GDS_ID_MDSROUTEINFO	0x1311

@@ -83,6 +81,8 @@ extern u64 sclp_facilities;
 
 #define SCLP_HAS_CHP_INFO	(sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG	(sclp_facilities & 0x2000000000000000ULL)
+#define SCLP_HAS_CPU_INFO	(sclp_facilities & 0x0800000000000000ULL)
+#define SCLP_HAS_CPU_RECONFIG	(sclp_facilities & 0x0400000000000000ULL)
 
 struct gds_subvector {
 	u8	length;

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diff -urpN linux-2.6/include/asm-s390/sclp.h linux-2.6-patched/include/asm-s390/sclp.h
@@ -27,7 +27,26 @@ struct sclp_ipl_info {
 	char loadparm[LOADPARM_LEN];
 };
 
-void sclp_readinfo_early(void);
+struct sclp_cpu_entry {
+	u8 address;
+	u8 reserved0[13];
+	u8 type;
+	u8 reserved1;
+} __attribute__((packed));
+
+struct sclp_cpu_info {
+	unsigned int configured;
+	unsigned int standby;
+	unsigned int combined;
+	int has_cpu_type;
+	struct sclp_cpu_entry cpu[255];
+};
+
+int sclp_get_cpu_info(struct sclp_cpu_info *info);
+int sclp_cpu_configure(u8 cpu);
+int sclp_cpu_deconfigure(u8 cpu);
+void sclp_read_info_early(void);
+void sclp_read_cpu_info_early(void);
 void sclp_facilities_detect(void);
 unsigned long long sclp_memory_detect(void);
 int sclp_sdias_blk_count(void);

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diff -urpN linux-2.6/arch/s390/kernel/ipl.c linux-2.6-patched/arch/s390/kernel/ipl.c
@@ -2,7 +2,7 @@
  *  arch/s390/kernel/ipl.c
  *    ipl/reipl/dump support for Linux on s390.
  *
- *    Copyright (C) IBM Corp. 2005,2006
+ *    Copyright IBM Corp. 2005,2007
  *    Author(s): Michael Holzheu <[email protected]>
  *		 Heiko Carstens <[email protected]>
  *		 Volker Sameske <[email protected]>

@@ -31,6 +31,43 @@
 #define IPL_FCP_DUMP_STR	"fcp_dump"
 #define IPL_NSS_STR		"nss"
 
+#define DUMP_CCW_STR		"ccw"
+#define DUMP_FCP_STR		"fcp"
+#define DUMP_NONE_STR		"none"
+
+/*
+ * Four shutdown trigger types are supported:
+ * - panic
+ * - halt
+ * - power off
+ * - reipl
+ */
+#define ON_PANIC_STR		"on_panic"
+#define ON_HALT_STR		"on_halt"
+#define ON_POFF_STR		"on_poff"
+#define ON_REIPL_STR		"on_reboot"
+
+struct shutdown_action;
+struct shutdown_trigger {
+	char *name;
+	struct shutdown_action *action;
+};
+
+/*
+ * Five shutdown action types are supported:
+ */
+#define SHUTDOWN_ACTION_IPL_STR		"ipl"
+#define SHUTDOWN_ACTION_REIPL_STR	"reipl"
+#define SHUTDOWN_ACTION_DUMP_STR	"dump"
+#define SHUTDOWN_ACTION_VMCMD_STR	"vmcmd"
+#define SHUTDOWN_ACTION_STOP_STR	"stop"
+
+struct shutdown_action {
+	char *name;
+	void (*fn) (struct shutdown_trigger *trigger);
+	int (*init) (void);
+};
+
 static char *ipl_type_str(enum ipl_type type)
 {
 	switch (type) {

@@ -54,10 +91,6 @@ enum dump_type {
 	DUMP_TYPE_FCP	= 4,
 };
 
-#define DUMP_NONE_STR	 "none"
-#define DUMP_CCW_STR	 "ccw"
-#define DUMP_FCP_STR	 "fcp"
-
 static char *dump_type_str(enum dump_type type)
 {
 	switch (type) {

@@ -99,30 +132,6 @@ enum dump_method {
 	DUMP_METHOD_FCP_DIAG,
 };
 
-enum shutdown_action {
-	SHUTDOWN_REIPL,
-	SHUTDOWN_DUMP,
-	SHUTDOWN_STOP,
-};
-
-#define SHUTDOWN_REIPL_STR "reipl"
-#define SHUTDOWN_DUMP_STR  "dump"
-#define SHUTDOWN_STOP_STR  "stop"
-
-static char *shutdown_action_str(enum shutdown_action action)
-{
-	switch (action) {
-	case SHUTDOWN_REIPL:
-		return SHUTDOWN_REIPL_STR;
-	case SHUTDOWN_DUMP:
-		return SHUTDOWN_DUMP_STR;
-	case SHUTDOWN_STOP:
-		return SHUTDOWN_STOP_STR;
-	default:
-		return NULL;
-	}
-}
-
 static int diag308_set_works = 0;
 
 static int reipl_capabilities = IPL_TYPE_UNKNOWN;

@@ -140,8 +149,6 @@ static enum dump_method dump_method = DU
 static struct ipl_parameter_block *dump_block_fcp;
 static struct ipl_parameter_block *dump_block_ccw;
 
-static enum shutdown_action on_panic_action = SHUTDOWN_STOP;
-
 static struct sclp_ipl_info sclp_ipl_info;
 
 int diag308(unsigned long subcode, void *addr)

@@ -200,8 +207,8 @@ static ssize_t sys_##_prefix##_##_name##
 static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
 		const char *buf, size_t len)				\
 {									\
-	if (sscanf(buf, _fmt_in, _value) != 1)				\
-		return -EINVAL;						\
+	strncpy(_value, buf, sizeof(_value) - 1);			\
+	strstrip(_value);						\
 	return len;							\
 }									\
 static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\

@@ -240,33 +247,6 @@ static __init enum ipl_type get_ipl_type
 	return IPL_TYPE_FCP;
 }
 
-void __init setup_ipl_info(void)
-{
-	ipl_info.type = get_ipl_type();
-	switch (ipl_info.type) {
-	case IPL_TYPE_CCW:
-		ipl_info.data.ccw.dev_id.devno = ipl_devno;
-		ipl_info.data.ccw.dev_id.ssid = 0;
-		break;
-	case IPL_TYPE_FCP:
-	case IPL_TYPE_FCP_DUMP:
-		ipl_info.data.fcp.dev_id.devno =
-			IPL_PARMBLOCK_START->ipl_info.fcp.devno;
-		ipl_info.data.fcp.dev_id.ssid = 0;
-		ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
-		ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
-		break;
-	case IPL_TYPE_NSS:
-		strncpy(ipl_info.data.nss.name, kernel_nss_name,
-			sizeof(ipl_info.data.nss.name));
-		break;
-	case IPL_TYPE_UNKNOWN:
-	default:
-		/* We have no info to copy */
-		break;
-	}
-}
-
 struct ipl_info ipl_info;
 EXPORT_SYMBOL_GPL(ipl_info);
 

@@ -420,8 +400,77 @@ static struct attribute_group ipl_unknow
 
 static decl_subsys(ipl, NULL, NULL);
 
+static int __init ipl_register_fcp_files(void)
+{
+	int rc;
+
+	rc = sysfs_create_group(&ipl_subsys.kobj,
+				&ipl_fcp_attr_group);
+	if (rc)
+		goto out;
+	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+				   &ipl_parameter_attr);
+	if (rc)
+		goto out_ipl_parm;
+	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+				   &ipl_scp_data_attr);
+	if (!rc)
+		goto out;
+
+	sysfs_remove_bin_file(&ipl_subsys.kobj, &ipl_parameter_attr);
+
+out_ipl_parm:
+	sysfs_remove_group(&ipl_subsys.kobj, &ipl_fcp_attr_group);
+out:
+	return rc;
+}
+
+static void ipl_run(struct shutdown_trigger *trigger)
+{
+	diag308(DIAG308_IPL, NULL);
+	if (MACHINE_IS_VM)
+		__cpcmd("IPL", NULL, 0, NULL);
+	else if (ipl_info.type == IPL_TYPE_CCW)
+		reipl_ccw_dev(&ipl_info.data.ccw.dev_id);
+}
+
+static int ipl_init(void)
+{
+	int rc;
+
+	rc = firmware_register(&ipl_subsys);
+	if (rc)
+		goto out;
+	switch (ipl_info.type) {
+	case IPL_TYPE_CCW:
+		rc = sysfs_create_group(&ipl_subsys.kobj,
+					&ipl_ccw_attr_group);
+		break;
+	case IPL_TYPE_FCP:
+	case IPL_TYPE_FCP_DUMP:
+		rc = ipl_register_fcp_files();
+		break;
+	case IPL_TYPE_NSS:
+		rc = sysfs_create_group(&ipl_subsys.kobj,
+					&ipl_nss_attr_group);
+		break;
+	default:
+		rc = sysfs_create_group(&ipl_subsys.kobj,
+					&ipl_unknown_attr_group);
+		break;
+	}
+out:
+	if (rc)
+		panic("ipl_init failed: rc = %i\n", rc);
+
+	return 0;
+}
+
+static struct shutdown_action ipl_action = {SHUTDOWN_ACTION_IPL_STR, ipl_run,
+					    ipl_init};
+
 /*
- * reipl section
+ * reipl shutdown action: Reboot Linux on shutdown.
  */
 
 /* FCP reipl device attributes */

@@ -592,135 +641,7 @@ static struct subsys_attribute reipl_typ
 
 static decl_subsys(reipl, NULL, NULL);
 
-/*
- * dump section
- */
-
-/* FCP dump device attributes */
-
-DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n",
-		   dump_block_fcp->ipl_info.fcp.wwpn);
-DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n",
-		   dump_block_fcp->ipl_info.fcp.lun);
-DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n",
-		   dump_block_fcp->ipl_info.fcp.bootprog);
-DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n",
-		   dump_block_fcp->ipl_info.fcp.br_lba);
-DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n",
-		   dump_block_fcp->ipl_info.fcp.devno);
-
-static struct attribute *dump_fcp_attrs[] = {
-	&sys_dump_fcp_device_attr.attr,
-	&sys_dump_fcp_wwpn_attr.attr,
-	&sys_dump_fcp_lun_attr.attr,
-	&sys_dump_fcp_bootprog_attr.attr,
-	&sys_dump_fcp_br_lba_attr.attr,
-	NULL,
-};
-
-static struct attribute_group dump_fcp_attr_group = {
-	.name  = IPL_FCP_STR,
-	.attrs = dump_fcp_attrs,
-};
-
-/* CCW dump device attributes */
-
-DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
-		   dump_block_ccw->ipl_info.ccw.devno);
-
-static struct attribute *dump_ccw_attrs[] = {
-	&sys_dump_ccw_device_attr.attr,
-	NULL,
-};
-
-static struct attribute_group dump_ccw_attr_group = {
-	.name  = IPL_CCW_STR,
-	.attrs = dump_ccw_attrs,
-};
-
-/* dump type */
-
-static int dump_set_type(enum dump_type type)
-{
-	if (!(dump_capabilities & type))
-		return -EINVAL;
-	switch(type) {
-	case DUMP_TYPE_CCW:
-		if (MACHINE_IS_VM)
-			dump_method = DUMP_METHOD_CCW_VM;
-		else if (diag308_set_works)
-			dump_method = DUMP_METHOD_CCW_DIAG;
-		else
-			dump_method = DUMP_METHOD_CCW_CIO;
-		break;
-	case DUMP_TYPE_FCP:
-		dump_method = DUMP_METHOD_FCP_DIAG;
-		break;
-	default:
-		dump_method = DUMP_METHOD_NONE;
-	}
-	dump_type = type;
-	return 0;
-}
-
-static ssize_t dump_type_show(struct kset *kset, char *page)
-{
-	return sprintf(page, "%s\n", dump_type_str(dump_type));
-}
-
-static ssize_t dump_type_store(struct kset *kset, const char *buf,
-			       size_t len)
-{
-	int rc = -EINVAL;
-
-	if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_NONE);
-	else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_CCW);
-	else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0)
-		rc = dump_set_type(DUMP_TYPE_FCP);
-	return (rc != 0) ? rc : len;
-}
-
-static struct subsys_attribute dump_type_attr =
-		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
-
-static decl_subsys(dump, NULL, NULL);
-
-/*
- * Shutdown actions section
- */
-
-static decl_subsys(shutdown_actions, NULL, NULL);
-
-/* on panic */
-
-static ssize_t on_panic_show(struct kset *kset, char *page)
-{
-	return sprintf(page, "%s\n", shutdown_action_str(on_panic_action));
-}
-
-static ssize_t on_panic_store(struct kset *kset, const char *buf,
-			      size_t len)
-{
-	if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0)
-		on_panic_action = SHUTDOWN_REIPL;
-	else if (strncmp(buf, SHUTDOWN_DUMP_STR,
-			 strlen(SHUTDOWN_DUMP_STR)) == 0)
-		on_panic_action = SHUTDOWN_DUMP;
-	else if (strncmp(buf, SHUTDOWN_STOP_STR,
-			 strlen(SHUTDOWN_STOP_STR)) == 0)
-		on_panic_action = SHUTDOWN_STOP;
-	else
-		return -EINVAL;
-
-	return len;
-}
-
-static struct subsys_attribute on_panic_attr =
-		__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
-
-void do_reipl(void)
+void reipl_run(struct shutdown_trigger *trigger)
 {
 	struct ccw_dev_id devid;
 	static char buf[100];

@@ -771,110 +692,18 @@ void do_reipl(void)
 	default:
 		break;
 	}
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
 }
 
-static void do_dump(void)
+static void __init reipl_probe(void)
 {
-	struct ccw_dev_id devid;
-	static char buf[100];
+	void *buffer;
 
-	switch (dump_method) {
-	case DUMP_METHOD_CCW_CIO:
-		smp_send_stop();
-		devid.devno = dump_block_ccw->ipl_info.ccw.devno;
-		devid.ssid  = 0;
-		reipl_ccw_dev(&devid);
-		break;
-	case DUMP_METHOD_CCW_VM:
-		smp_send_stop();
-		sprintf(buf, "STORE STATUS");
-		__cpcmd(buf, NULL, 0, NULL);
-		sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
-		__cpcmd(buf, NULL, 0, NULL);
-		break;
-	case DUMP_METHOD_CCW_DIAG:
-		diag308(DIAG308_SET, dump_block_ccw);
-		diag308(DIAG308_DUMP, NULL);
-		break;
-	case DUMP_METHOD_FCP_DIAG:
-		diag308(DIAG308_SET, dump_block_fcp);
-		diag308(DIAG308_DUMP, NULL);
-		break;
-	case DUMP_METHOD_NONE:
-	default:
+	buffer = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!buffer)
 		return;
-	}
-	printk(KERN_EMERG "Dump failed!\n");
-}
-
-/* init functions */
-
-static int __init ipl_register_fcp_files(void)
-{
-	int rc;
-
-	rc = sysfs_create_group(&ipl_subsys.kobj,
-				&ipl_fcp_attr_group);
-	if (rc)
-		goto out;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
-				   &ipl_parameter_attr);
-	if (rc)
-		goto out_ipl_parm;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
-				   &ipl_scp_data_attr);
-	if (!rc)
-		goto out;
-
-	sysfs_remove_bin_file(&ipl_subsys.kobj, &ipl_parameter_attr);
-
-out_ipl_parm:
-	sysfs_remove_group(&ipl_subsys.kobj, &ipl_fcp_attr_group);
-out:
-	return rc;
-}
-
-static int __init ipl_init(void)
-{
-	int rc;
-
-	rc = firmware_register(&ipl_subsys);
-	if (rc)
-		return rc;
-	switch (ipl_info.type) {
-	case IPL_TYPE_CCW:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
-					&ipl_ccw_attr_group);
-		break;
-	case IPL_TYPE_FCP:
-	case IPL_TYPE_FCP_DUMP:
-		rc = ipl_register_fcp_files();
-		break;
-	case IPL_TYPE_NSS:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
-					&ipl_nss_attr_group);
-		break;
-	default:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
-					&ipl_unknown_attr_group);
-		break;
-	}
-	if (rc)
-		firmware_unregister(&ipl_subsys);
-	return rc;
-}
-
-static void __init reipl_probe(void)
-{
-	void *buffer;
-
-	buffer = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!buffer)
-		return;
-	if (diag308(DIAG308_STORE, buffer) == DIAG308_RC_OK)
-		diag308_set_works = 1;
-	free_page((unsigned long)buffer);
+	if (diag308(DIAG308_STORE, buffer) == DIAG308_RC_OK)
+		diag308_set_works = 1;
+	free_page((unsigned long)buffer);
 }
 
 static int __init reipl_nss_init(void)

@@ -954,7 +783,7 @@ static int __init reipl_fcp_init(void)
 	return 0;
 }
 
-static int __init reipl_init(void)
+static int reipl_init(void)
 {
 	int rc;
 

@@ -981,6 +810,136 @@ static int __init reipl_init(void)
 	return 0;
 }
 
+static struct shutdown_action reipl_action = {SHUTDOWN_ACTION_REIPL_STR,
+					      reipl_run, reipl_init};
+
+/*
+ * dump shutdown action: Dump Linux on shutdown.
+ */
+
+/* FCP dump device attributes */
+
+DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n",
+		   dump_block_fcp->ipl_info.fcp.wwpn);
+DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n",
+		   dump_block_fcp->ipl_info.fcp.lun);
+DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n",
+		   dump_block_fcp->ipl_info.fcp.bootprog);
+DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n",
+		   dump_block_fcp->ipl_info.fcp.br_lba);
+DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n",
+		   dump_block_fcp->ipl_info.fcp.devno);
+
+static struct attribute *dump_fcp_attrs[] = {
+	&sys_dump_fcp_device_attr.attr,
+	&sys_dump_fcp_wwpn_attr.attr,
+	&sys_dump_fcp_lun_attr.attr,
+	&sys_dump_fcp_bootprog_attr.attr,
+	&sys_dump_fcp_br_lba_attr.attr,
+	NULL,
+};
+
+static struct attribute_group dump_fcp_attr_group = {
+	.name  = IPL_FCP_STR,
+	.attrs = dump_fcp_attrs,
+};
+
+/* CCW dump device attributes */
+
+DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
+		   dump_block_ccw->ipl_info.ccw.devno);
+
+static struct attribute *dump_ccw_attrs[] = {
+	&sys_dump_ccw_device_attr.attr,
+	NULL,
+};
+
+static struct attribute_group dump_ccw_attr_group = {
+	.name  = IPL_CCW_STR,
+	.attrs = dump_ccw_attrs,
+};
+
+/* dump type */
+
+static int dump_set_type(enum dump_type type)
+{
+	if (!(dump_capabilities & type))
+		return -EINVAL;
+	switch (type) {
+	case DUMP_TYPE_CCW:
+		if (MACHINE_IS_VM)
+			dump_method = DUMP_METHOD_CCW_VM;
+		else
+			dump_method = DUMP_METHOD_CCW_CIO;
+		break;
+	case DUMP_TYPE_FCP:
+		dump_method = DUMP_METHOD_FCP_DIAG;
+		break;
+	default:
+		dump_method = DUMP_METHOD_NONE;
+	}
+	dump_type = type;
+	return 0;
+}
+
+static ssize_t dump_type_show(struct kset *kset, char *page)
+{
+	return sprintf(page, "%s\n", dump_type_str(dump_type));
+}
+
+static ssize_t dump_type_store(struct kset *kset, const char *buf,
+			       size_t len)
+{
+	int rc = -EINVAL;
+
+	if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_NONE);
+	else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_CCW);
+	else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0)
+		rc = dump_set_type(DUMP_TYPE_FCP);
+	return (rc != 0) ? rc : len;
+}
+
+static struct subsys_attribute dump_type_attr =
+		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
+
+static decl_subsys(dump, NULL, NULL);
+
+static void dump_run(struct shutdown_trigger *trigger)
+{
+	struct ccw_dev_id devid;
+	static char buf[100];
+
+	switch (dump_method) {
+	case DUMP_METHOD_CCW_CIO:
+		smp_send_stop();
+		devid.devno = dump_block_ccw->ipl_info.ccw.devno;
+		devid.ssid  = 0;
+		reipl_ccw_dev(&devid);
+		break;
+	case DUMP_METHOD_CCW_VM:
+		smp_send_stop();
+		sprintf(buf, "STORE STATUS");
+		__cpcmd(buf, NULL, 0, NULL);
+		sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
+		__cpcmd(buf, NULL, 0, NULL);
+		break;
+	case DUMP_METHOD_CCW_DIAG:
+		diag308(DIAG308_SET, dump_block_ccw);
+		diag308(DIAG308_DUMP, NULL);
+		break;
+	case DUMP_METHOD_FCP_DIAG:
+		diag308(DIAG308_SET, dump_block_fcp);
+		diag308(DIAG308_DUMP, NULL);
+		break;
+	case DUMP_METHOD_NONE:
+	default:
+		return;
+	}
+	printk(KERN_EMERG "Dump failed!\n");
+}
+
 static int __init dump_ccw_init(void)
 {
 	int rc;

@@ -1026,24 +985,7 @@ static int __init dump_fcp_init(void)
 	return 0;
 }
 
-#define SHUTDOWN_ON_PANIC_PRIO 0
-
-static int shutdown_on_panic_notify(struct notifier_block *self,
-				    unsigned long event, void *data)
-{
-	if (on_panic_action == SHUTDOWN_DUMP)
-		do_dump();
-	else if (on_panic_action == SHUTDOWN_REIPL)
-		do_reipl();
-	return NOTIFY_OK;
-}
-
-static struct notifier_block shutdown_on_panic_nb = {
-	.notifier_call = shutdown_on_panic_notify,
-	.priority = SHUTDOWN_ON_PANIC_PRIO
-};
-
-static int __init dump_init(void)
+static int dump_init(void)
 {
 	int rc;
 

@@ -1065,46 +1007,362 @@ static int __init dump_init(void)
 	return 0;
 }
 
-static int __init shutdown_actions_init(void)
+static struct shutdown_action dump_action = {SHUTDOWN_ACTION_DUMP_STR,
+					     dump_run, dump_init};
+
+/*
+ * vmcmd shutdown action: Trigger vm command on shutdown.
+ */
+
+static char vmcmd_on_reboot[128];
+static char vmcmd_on_panic[128];
+static char vmcmd_on_halt[128];
+static char vmcmd_on_poff[128];
+
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_halt, "%s\n", "%s\n", vmcmd_on_halt);
+DEFINE_IPL_ATTR_STR_RW(vmcmd, on_poff, "%s\n", "%s\n", vmcmd_on_poff);
+
+static struct attribute *vmcmd_attrs[] = {
+	&sys_vmcmd_on_reboot_attr.attr,
+	&sys_vmcmd_on_panic_attr.attr,
+	&sys_vmcmd_on_halt_attr.attr,
+	&sys_vmcmd_on_poff_attr.attr,
+	NULL,
+};
+
+static struct attribute_group vmcmd_attr_group = {
+	.attrs = vmcmd_attrs,
+};
+
+static decl_subsys(vmcmd, NULL, NULL);
+
+static void vmcmd_run(struct shutdown_trigger *trigger)
+{
+	char *cmd, *next_cmd;
+
+	if (strcmp(trigger->name, ON_REIPL_STR) == 0)
+		cmd = vmcmd_on_reboot;
+	else if (strcmp(trigger->name, ON_PANIC_STR) == 0)
+		cmd = vmcmd_on_panic;
+	else if (strcmp(trigger->name, ON_HALT_STR) == 0)
+		cmd = vmcmd_on_halt;
+	else if (strcmp(trigger->name, ON_POFF_STR) == 0)
+		cmd = vmcmd_on_poff;
+	else
+		return;
+
+	if (strlen(cmd) == 0)
+		return;
+	do {
+		next_cmd = strchr(cmd, '\n');
+		if (next_cmd) {
+			next_cmd[0] = 0;
+			next_cmd += 1;
+		}
+		__cpcmd(cmd, NULL, 0, NULL);
+		cmd = next_cmd;
+	} while (cmd != NULL);
+}
+
+static int vmcmd_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&shutdown_actions_subsys);
+	if (!MACHINE_IS_VM)
+		return -ENOTSUPP;
+	rc = firmware_register(&vmcmd_subsys);
 	if (rc)
 		return rc;
-	rc = subsys_create_file(&shutdown_actions_subsys, &on_panic_attr);
-	if (rc) {
-		firmware_unregister(&shutdown_actions_subsys);
-		return rc;
+	return sysfs_create_group(&vmcmd_subsys.kobj, &vmcmd_attr_group);
+}
+
+static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
+					      vmcmd_run, vmcmd_init};
+
+/*
+ * stop shutdown action: Stop Linux on shutdown.
+ */
+
+static void stop_run(struct shutdown_trigger *trigger)
+{
+	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
+	for (;;);
+}
+
+static struct shutdown_action stop_action = {SHUTDOWN_ACTION_STOP_STR,
+					     stop_run, NULL};
+
+/* action list */
+
+static struct shutdown_action *shutdown_actions_list[] = {
+	&ipl_action, &reipl_action, &dump_action, &vmcmd_action, &stop_action};
+#define SHUTDOWN_ACTIONS_COUNT (sizeof(shutdown_actions_list) / sizeof(void *))
+
+/*
+ * Trigger section
+ */
+
+static decl_subsys(shutdown_actions, NULL, NULL);
+
+static int set_trigger(const char *buf, struct shutdown_trigger *trigger,
+		       size_t len)
+{
+	int i;
+
+	for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
+		if (!shutdown_actions_list[i])
+			continue;
+		if (strncmp(buf, shutdown_actions_list[i]->name,
+			    strlen(shutdown_actions_list[i]->name)) == 0) {
+			trigger->action = shutdown_actions_list[i];
+			return len;
+		}
 	}
-	atomic_notifier_chain_register(&panic_notifier_list,
-				       &shutdown_on_panic_nb);
-	return 0;
+	return -EINVAL;
 }
 
-static int __init s390_ipl_init(void)
+/* on reipl */
+
+static struct shutdown_trigger on_reboot_trigger = {ON_REIPL_STR,
+						    &reipl_action};
+
+static ssize_t on_reboot_show(struct kset *kset, char *page)
 {
-	int rc;
+	return sprintf(page, "%s\n", on_reboot_trigger.action->name);
+}
+
+static ssize_t on_reboot_store(struct kset *kset, const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_reboot_trigger, len);
+}
+
+static struct subsys_attribute on_reboot_attr =
+		__ATTR(on_reboot, 0644, on_reboot_show, on_reboot_store);
+
+static void do_machine_restart(char *__unused)
+{
+	smp_send_stop();
+	on_reboot_trigger.action->fn(&on_reboot_trigger);
+	reipl_run(NULL);
+}
+void (*_machine_restart)(char *command) = do_machine_restart;
+
+/* on panic */
+
+static struct shutdown_trigger on_panic_trigger = {ON_PANIC_STR, &stop_action};
+
+static ssize_t on_panic_show(struct kset *kset, char *page)
+{
+	return sprintf(page, "%s\n", on_panic_trigger.action->name);
+}
+
+static ssize_t on_panic_store(struct kset *kset, const char *buf,
+			      size_t len)
+{
+	return set_trigger(buf, &on_panic_trigger, len);
+}
+
+static struct subsys_attribute on_panic_attr =
+		__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
+
+static void do_panic(void)
+{
+	on_panic_trigger.action->fn(&on_panic_trigger);
+	stop_run(&on_panic_trigger);
+}
+
+/* on halt */
+
+static struct shutdown_trigger on_halt_trigger = {ON_HALT_STR, &stop_action};
+
+static ssize_t on_halt_show(struct kset *kset, char *page)
+{
+	return sprintf(page, "%s\n", on_halt_trigger.action->name);
+}
+
+static ssize_t on_halt_store(struct kset *kset, const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_halt_trigger, len);
+}
+
+static struct subsys_attribute on_halt_attr =
+		__ATTR(on_halt, 0644, on_halt_show, on_halt_store);
 
-	sclp_get_ipl_info(&sclp_ipl_info);
+
+static void do_machine_halt(void)
+{
+	smp_send_stop();
+	on_halt_trigger.action->fn(&on_halt_trigger);
+	stop_run(&on_halt_trigger);
+}
+void (*_machine_halt)(void) = do_machine_halt;
+
+/* on power off */
+
+static struct shutdown_trigger on_poff_trigger = {ON_POFF_STR, &stop_action};
+
+static ssize_t on_poff_show(struct kset *kset, char *page)
+{
+	return sprintf(page, "%s\n", on_poff_trigger.action->name);
+}
+
+static ssize_t on_poff_store(struct kset *kset, const char *buf, size_t len)
+{
+	return set_trigger(buf, &on_poff_trigger, len);
+}
+
+static struct subsys_attribute on_poff_attr =
+		__ATTR(on_poff, 0644, on_poff_show, on_poff_store);
+
+
+static void do_machine_power_off(void)
+{
+	smp_send_stop();
+	on_poff_trigger.action->fn(&on_poff_trigger);
+	stop_run(&on_poff_trigger);
+}
+void (*_machine_power_off)(void) = do_machine_power_off;
+
+static void __init shutdown_triggers_init(void)
+{
+	if (firmware_register(&shutdown_actions_subsys))
+		goto fail;
+	if (subsys_create_file(&shutdown_actions_subsys, &on_reboot_attr))
+		goto fail;
+	if (subsys_create_file(&shutdown_actions_subsys, &on_panic_attr))
+		goto fail;
+	if (subsys_create_file(&shutdown_actions_subsys, &on_halt_attr))
+		goto fail;
+	if (subsys_create_file(&shutdown_actions_subsys, &on_poff_attr))
+		goto fail;
+
+	return;
+fail:
+	panic("shutdown_triggers_init failed\n");
+}
+
+static void __init shutdown_actions_init(void)
+{
+	int i;
+
+	for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
+		if (!shutdown_actions_list[i]->init)
+			continue;
+		if (shutdown_actions_list[i]->init())
+			shutdown_actions_list[i] = NULL;
+	}
+}
+
+static int __init s390_ipl_init(void)
+{
 	reipl_probe();
-	rc = ipl_init();
-	if (rc)
-		return rc;
-	rc = reipl_init();
-	if (rc)
-		return rc;
-	rc = dump_init();
-	if (rc)
-		return rc;
-	rc = shutdown_actions_init();
-	if (rc)
-		return rc;
+	shutdown_actions_init();
+	shutdown_triggers_init();
 	return 0;
 }
 
 __initcall(s390_ipl_init);
 
+static void __init strncpy_skip_quote(char *dst, char *src, int n)
+{
+	int sx, dx;
+
+	dx = 0;
+	for (sx = 0; src[sx] != 0; sx++) {
+		if (src[sx] == '"')
+			continue;
+		dst[dx++] = src[sx];
+		if (dx >= n)
+			break;
+	}
+}
+
+static int __init vmcmd_on_reboot_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_reboot, str, 127);
+	vmcmd_on_reboot[127] = 0;
+	on_panic_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmreboot=", vmcmd_on_reboot_setup);
+
+static int __init vmcmd_on_panic_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_panic, str, 127);
+	vmcmd_on_panic[127] = 0;
+	on_panic_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmpanic=", vmcmd_on_panic_setup);
+
+static int __init vmcmd_on_halt_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_halt, str, 127);
+	vmcmd_on_halt[127] = 0;
+	on_halt_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmhalt=", vmcmd_on_halt_setup);
+
+static int __init vmcmd_on_poff_setup(char *str)
+{
+	if (!MACHINE_IS_VM)
+		return 1;
+	strncpy_skip_quote(vmcmd_on_poff, str, 127);
+	vmcmd_on_poff[127] = 0;
+	on_poff_trigger.action = &vmcmd_action;
+	return 1;
+}
+__setup("vmpoff=", vmcmd_on_poff_setup);
+
+static int on_panic_notify(struct notifier_block *self,
+			   unsigned long event, void *data)
+{
+	do_panic();
+	return NOTIFY_OK;
+}
+
+static struct notifier_block on_panic_nb = {
+	.notifier_call = on_panic_notify,
+	.priority = 0,
+};
+
+void __init setup_ipl(void)
+{
+	ipl_info.type = get_ipl_type();
+	switch (ipl_info.type) {
+	case IPL_TYPE_CCW:
+		ipl_info.data.ccw.dev_id.devno = ipl_devno;
+		ipl_info.data.ccw.dev_id.ssid = 0;
+		break;
+	case IPL_TYPE_FCP:
+	case IPL_TYPE_FCP_DUMP:
+		ipl_info.data.fcp.dev_id.devno =
+			IPL_PARMBLOCK_START->ipl_info.fcp.devno;
+		ipl_info.data.fcp.dev_id.ssid = 0;
+		ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
+		ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
+		break;
+	case IPL_TYPE_NSS:
+		strncpy(ipl_info.data.nss.name, kernel_nss_name,
+			sizeof(ipl_info.data.nss.name));
+		break;
+	case IPL_TYPE_UNKNOWN:
+	default:
+		/* We have no info to copy */
+		break;
+	}
+	atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb);
+}
+
 void __init ipl_save_parameters(void)
 {
 	struct cio_iplinfo iplinfo;

@@ -1185,3 +1443,4 @@ void s390_reset_system(void)
 
 	do_reset_calls();
 }
+

121 lines not on this page · raw message

diff -urpN linux-2.6/arch/s390/kernel/smp.c linux-2.6-patched/arch/s390/kernel/smp.c
@@ -234,33 +234,6 @@ void smp_send_stop(void)
 }
 
 /*
- * Reboot, halt and power_off routines for SMP.
- */
-void machine_restart_smp(char *__unused)
-{
-	smp_send_stop();
-	do_reipl();
-}
-
-void machine_halt_smp(void)
-{
-	smp_send_stop();
-	if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0)
-		__cpcmd(vmhalt_cmd, NULL, 0, NULL);
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-	for (;;);
-}
-
-void machine_power_off_smp(void)
-{
-	smp_send_stop();
-	if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
-		__cpcmd(vmpoff_cmd, NULL, 0, NULL);
-	signal_processor(smp_processor_id(), sigp_stop_and_store_status);
-	for (;;);
-}
-
-/*
  * This is the main routine where commands issued by other
  * cpus are handled.
  */

diff -urpN linux-2.6/include/asm-s390/ipl.h linux-2.6-patched/include/asm-s390/ipl.h
@@ -83,6 +83,8 @@ extern u32 dump_prefix_page;
 extern unsigned int zfcpdump_prefix_array[];
 
 extern void do_reipl(void);
+extern void do_halt(void);
+extern void do_poff(void);
 extern void ipl_save_parameters(void);
 
 enum {

@@ -118,7 +120,7 @@ struct ipl_info
 };
 
 extern struct ipl_info ipl_info;
-extern void setup_ipl_info(void);
+extern void setup_ipl(void);
 
 /*
  * DIAG 308 support

diff -Naurp linux-2.6.23-mm/arch/s390/kernel/ipl.c linux-2.6.23-mm-ipl-fix/arch/s390/kernel/ipl.c
@@ -169,23 +169,24 @@ EXPORT_SYMBOL_GPL(diag308);
 /* SYSFS */
 
 #define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value)		\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
-		char *page)						\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr, char *page)		\
 {									\
 	return sprintf(page, _format, _value);				\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL);
 
 #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)	\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
-		char *page)						\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr, char *page)		\
 {									\
 	return sprintf(page, _fmt_out,					\
 			(unsigned long long) _value);			\
 }									\
-static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
-		const char *buf, size_t len)				\
+static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
+		struct kobj_attribute *attr, const char *buf,		\
+		size_t len)						\
 {									\
 	unsigned long long value;					\
 	if (sscanf(buf, _fmt_in, &value) != 1)				\

@@ -193,25 +194,26 @@ static ssize_t sys_##_prefix##_##_name##
 	_value = value;							\
 	return len;							\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name,(S_IRUGO | S_IWUSR),				\
 			sys_##_prefix##_##_name##_show,			\
 			sys_##_prefix##_##_name##_store);
 
 #define DEFINE_IPL_ATTR_STR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)\
-static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset,	\
-		char *page)						\
+static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj,	\
+		struct kobj_attribute *attr, char *page)		\
 {									\
 	return sprintf(page, _fmt_out, _value);				\
 }									\
-static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset,	\
-		const char *buf, size_t len)				\
+static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj,	\
+		struct kobj_attribute *attr, const char *buf, 		\
+		size_t len)						\
 {									\
 	strncpy(_value, buf, sizeof(_value) - 1);			\
 	strstrip(_value);						\
 	return len;							\
 }									\
-static struct subsys_attribute sys_##_prefix##_##_name##_attr =		\
+static struct kobj_attribute sys_##_prefix##_##_name##_attr =		\
 	__ATTR(_name,(S_IRUGO | S_IWUSR),				\
 			sys_##_prefix##_##_name##_show,			\
 			sys_##_prefix##_##_name##_store);

@@ -250,14 +252,16 @@ static __init enum ipl_type get_ipl_type
 struct ipl_info ipl_info;
 EXPORT_SYMBOL_GPL(ipl_info);
 
-static ssize_t ipl_type_show(struct kset *kset, char *page)
+static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr,
+			     char *page)
 {
 	return sprintf(page, "%s\n", ipl_type_str(ipl_info.type));
 }
 
-static struct subsys_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
+static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
 
-static ssize_t sys_ipl_device_show(struct kset *kset, char *page)
+static ssize_t sys_ipl_device_show(struct kobject *kobj,
+				   struct kobj_attribute *attr, char *page)
 {
 	struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
 

@@ -272,7 +276,7 @@ static ssize_t sys_ipl_device_show(struc
 	}
 }
 
-static struct subsys_attribute sys_ipl_device_attr =
+static struct kobj_attribute sys_ipl_device_attr =
 	__ATTR(device, S_IRUGO, sys_ipl_device_show, NULL);
 
 static ssize_t ipl_parameter_read(struct kobject *kobj, struct bin_attribute *attr,

@@ -347,7 +351,8 @@ static struct attribute_group ipl_fcp_at
 
 /* CCW ipl device attributes */
 
-static ssize_t ipl_ccw_loadparm_show(struct kset *kset, char *page)
+static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj,
+				     struct kobj_attribute *attr, char *page)
 {
 	char loadparm[LOADPARM_LEN + 1] = {};
 

@@ -359,7 +364,7 @@ static ssize_t ipl_ccw_loadparm_show(str
 	return sprintf(page, "%s\n", loadparm);
 }
 
-static struct subsys_attribute sys_ipl_ccw_loadparm_attr =
+static struct kobj_attribute sys_ipl_ccw_loadparm_attr =
 	__ATTR(loadparm, 0444, ipl_ccw_loadparm_show, NULL);
 
 static struct attribute *ipl_ccw_attrs[] = {

@@ -398,29 +403,29 @@ static struct attribute_group ipl_unknow
 	.attrs = ipl_unknown_attrs,
 };
 
-static decl_subsys(ipl, NULL, NULL);
+static struct kset *ipl_kset;
 
 static int __init ipl_register_fcp_files(void)
 {
 	int rc;
 
-	rc = sysfs_create_group(&ipl_subsys.kobj,
+	rc = sysfs_create_group(&ipl_kset->kobj,
 				&ipl_fcp_attr_group);
 	if (rc)
 		goto out;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+	rc = sysfs_create_bin_file(&ipl_kset->kobj,
 				   &ipl_parameter_attr);
 	if (rc)
 		goto out_ipl_parm;
-	rc = sysfs_create_bin_file(&ipl_subsys.kobj,
+	rc = sysfs_create_bin_file(&ipl_kset->kobj,
 				   &ipl_scp_data_attr);
 	if (!rc)
 		goto out;
 
-	sysfs_remove_bin_file(&ipl_subsys.kobj, &ipl_parameter_attr);
+	sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr);
 
 out_ipl_parm:
-	sysfs_remove_group(&ipl_subsys.kobj, &ipl_fcp_attr_group);
+	sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
 out:
 	return rc;
 }

@@ -438,12 +443,14 @@ static int ipl_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&ipl_subsys);
-	if (rc)
+	ipl_kset = kset_create_and_register("ipl", NULL, firmware_kobj, NULL);
+	if (!ipl_kset) {
+		rc = -ENOMEM;
 		goto out;
+	}
 	switch (ipl_info.type) {
 	case IPL_TYPE_CCW:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_ccw_attr_group);
 		break;
 	case IPL_TYPE_FCP:

@@ -451,11 +458,11 @@ static int ipl_init(void)
 		rc = ipl_register_fcp_files();
 		break;
 	case IPL_TYPE_NSS:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_nss_attr_group);
 		break;
 	default:
-		rc = sysfs_create_group(&ipl_subsys.kobj,
+		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_unknown_attr_group);
 		break;
 	}

@@ -514,7 +521,8 @@ static void reipl_get_ascii_loadparm(cha
 	strstrip(loadparm);
 }
 
-static ssize_t reipl_ccw_loadparm_show(struct kset *kset, char *page)
+static ssize_t reipl_ccw_loadparm_show(struct kobject *kobj,
+				       struct kobj_attribute *attr, char *page)
 {
 	char buf[LOADPARM_LEN + 1];
 

@@ -522,7 +530,8 @@ static ssize_t reipl_ccw_loadparm_show(s
 	return sprintf(page, "%s\n", buf);
 }
 
-static ssize_t reipl_ccw_loadparm_store(struct kset *kset,
+static ssize_t reipl_ccw_loadparm_store(struct kobject *kobj,
+					struct kobj_attribute *attr,
 					const char *buf, size_t len)
 {
 	int i, lp_len;

@@ -549,7 +558,7 @@ static ssize_t reipl_ccw_loadparm_store(
 	return len;
 }
 
-static struct subsys_attribute sys_reipl_ccw_loadparm_attr =
+static struct kobj_attribute sys_reipl_ccw_loadparm_attr =
 	__ATTR(loadparm, 0644, reipl_ccw_loadparm_show,
 	       reipl_ccw_loadparm_store);
 

@@ -617,12 +626,14 @@ static int reipl_set_type(enum ipl_type 
 	return 0;
 }
 
-static ssize_t reipl_type_show(struct kset *kset, char *page)
+static ssize_t reipl_type_show(struct kobject *kobj,
+			       struct kobj_attribute *attr, char *page)
 {
 	return sprintf(page, "%s\n", ipl_type_str(reipl_type));
 }
 
-static ssize_t reipl_type_store(struct kset *kset, const char *buf,
+static ssize_t reipl_type_store(struct kobject *kobj,
+				struct kobj_attribute *attr, const char *buf,
 				size_t len)
 {
 	int rc = -EINVAL;

@@ -636,10 +647,10 @@ static ssize_t reipl_type_store(struct k
 	return (rc != 0) ? rc : len;
 }
 
-static struct subsys_attribute reipl_type_attr =
+static struct kobj_attribute reipl_type_attr =
 		__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
-static decl_subsys(reipl, NULL, NULL);
+static struct kset *reipl_kset;
 
 void reipl_run(struct shutdown_trigger *trigger)
 {

@@ -712,7 +723,7 @@ static int __init reipl_nss_init(void)
 
 	if (!MACHINE_IS_VM)
 		return 0;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_nss_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_nss_attr_group);
 	if (rc)
 		return rc;
 	strncpy(reipl_nss_name, kernel_nss_name, NSS_NAME_SIZE + 1);

@@ -727,7 +738,7 @@ static int __init reipl_ccw_init(void)
 	reipl_block_ccw = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!reipl_block_ccw)
 		return -ENOMEM;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_ccw_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_ccw_attr_group);
 	if (rc) {
 		free_page((unsigned long)reipl_block_ccw);
 		return rc;

@@ -765,7 +776,7 @@ static int __init reipl_fcp_init(void)
 	reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!reipl_block_fcp)
 		return -ENOMEM;
-	rc = sysfs_create_group(&reipl_subsys.kobj, &reipl_fcp_attr_group);
+	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_fcp_attr_group);
 	if (rc) {
 		free_page((unsigned long)reipl_block_fcp);
 		return rc;

@@ -787,12 +798,13 @@ static int reipl_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&reipl_subsys);
-	if (rc)
-		return rc;
-	rc = subsys_create_file(&reipl_subsys, &reipl_type_attr);
+	reipl_kset = kset_create_and_register("reipl", NULL, firmware_kobj,
+					      NULL);
+	if (!reipl_kset)
+		return -ENOMEM;
+	rc = sysfs_create_file(&reipl_kset->kobj, &reipl_type_attr.attr);
 	if (rc) {
-		firmware_unregister(&reipl_subsys);
+		kset_unregister(reipl_kset);
 		return rc;
 	}
 	rc = reipl_ccw_init();

@@ -882,12 +894,14 @@ static int dump_set_type(enum dump_type 
 	return 0;
 }
 
-static ssize_t dump_type_show(struct kset *kset, char *page)
+static ssize_t dump_type_show(struct kobject *kobj,
+			      struct kobj_attribute *attr, char *page)
 {
 	return sprintf(page, "%s\n", dump_type_str(dump_type));
 }
 
-static ssize_t dump_type_store(struct kset *kset, const char *buf,
+static ssize_t dump_type_store(struct kobject *kobj,
+			       struct kobj_attribute *attr, const char *buf,
 			       size_t len)
 {
 	int rc = -EINVAL;

@@ -901,10 +915,10 @@ static ssize_t dump_type_store(struct ks
 	return (rc != 0) ? rc : len;
 }
 
-static struct subsys_attribute dump_type_attr =
+static struct kobj_attribute dump_type_attr =
 		__ATTR(dump_type, 0644, dump_type_show, dump_type_store);
 
-static decl_subsys(dump, NULL, NULL);
+static struct kset *dump_kset;
 
 static void dump_run(struct shutdown_trigger *trigger)
 {

@@ -947,7 +961,7 @@ static int __init dump_ccw_init(void)
 	dump_block_ccw = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!dump_block_ccw)
 		return -ENOMEM;
-	rc = sysfs_create_group(&dump_subsys.kobj, &dump_ccw_attr_group);
+	rc = sysfs_create_group(&dump_kset->kobj, &dump_ccw_attr_group);
 	if (rc) {
 		free_page((unsigned long)dump_block_ccw);
 		return rc;

@@ -971,7 +985,7 @@ static int __init dump_fcp_init(void)
 	dump_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!dump_block_fcp)
 		return -ENOMEM;
-	rc = sysfs_create_group(&dump_subsys.kobj, &dump_fcp_attr_group);
+	rc = sysfs_create_group(&dump_kset->kobj, &dump_fcp_attr_group);
 	if (rc) {
 		free_page((unsigned long)dump_block_fcp);
 		return rc;

@@ -989,12 +1003,13 @@ static int dump_init(void)
 {
 	int rc;
 
-	rc = firmware_register(&dump_subsys);
-	if (rc)
-		return rc;
-	rc = subsys_create_file(&dump_subsys, &dump_type_attr);
+	dump_kset = kset_create_and_register("dump", NULL, firmware_kobj,
+					     NULL);
+	if (!dump_kset)
+		return -ENOMEM;
+	rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr.attr);
 	if (rc) {
-		firmware_unregister(&dump_subsys);
+		kset_unregister(dump_kset);
 		return rc;
 	}
 	rc = dump_ccw_init();

@@ -1036,7 +1051,7 @@ static struct attribute_group vmcmd_attr
 	.attrs = vmcmd_attrs,
 };
 
-static decl_subsys(vmcmd, NULL, NULL);
+static struct kset *vmcmd_kset;
 
 static void vmcmd_run(struct shutdown_trigger *trigger)
 {

@@ -1068,14 +1083,13 @@ static void vmcmd_run(struct shutdown_tr
 
 static int vmcmd_init(void)
 {
-	int rc;
-
 	if (!MACHINE_IS_VM)
 		return -ENOTSUPP;
-	rc = firmware_register(&vmcmd_subsys);
-	if (rc)
-		return rc;
-	return sysfs_create_group(&vmcmd_subsys.kobj, &vmcmd_attr_group);
+	vmcmd_kset = kset_create_and_register("vmcmd", NULL, firmware_kobj,
+					      NULL);
+	if (!vmcmd_kset)
+		return -ENOMEM;
+	return sysfs_create_group(&vmcmd_kset->kobj, &vmcmd_attr_group);
 }
 
 static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,

@@ -1104,7 +1118,7 @@ static struct shutdown_action *shutdown_
  * Trigger section
  */
 
-static decl_subsys(shutdown_actions, NULL, NULL);
+static struct kset *shutdown_actions_kset;
 
 static int set_trigger(const char *buf, struct shutdown_trigger *trigger,
 		       size_t len)

@@ -1128,17 +1142,20 @@ static int set_trigger(const char *buf, 
 static struct shutdown_trigger on_reboot_trigger = {ON_REIPL_STR,
 						    &reipl_action};
 
-static ssize_t on_reboot_show(struct kset *kset, char *page)
+static ssize_t on_reboot_show(struct kobject *kobj, struct kobj_attribute *attr,
+			      char *page)
 {
 	return sprintf(page, "%s\n", on_reboot_trigger.action->name);
 }
 
-static ssize_t on_reboot_store(struct kset *kset, const char *buf, size_t len)
+static ssize_t on_reboot_store(struct kobject *kobj,
+			       struct kobj_attribute *attr,
+			       const char *buf, size_t len)
 {
 	return set_trigger(buf, &on_reboot_trigger, len);
 }
 
-static struct subsys_attribute on_reboot_attr =
+static struct kobj_attribute on_reboot_attr =
 		__ATTR(on_reboot, 0644, on_reboot_show, on_reboot_store);
 
 static void do_machine_restart(char *__unused)

@@ -1153,18 +1170,20 @@ void (*_machine_restart)(char *command) 
 
 static struct shutdown_trigger on_panic_trigger = {ON_PANIC_STR, &stop_action};
 
-static ssize_t on_panic_show(struct kset *kset, char *page)
+static ssize_t on_panic_show(struct kobject *kobj, struct kobj_attribute *attr,
+			     char *page)
 {
 	return sprintf(page, "%s\n", on_panic_trigger.action->name);
 }
 
-static ssize_t on_panic_store(struct kset *kset, const char *buf,
+static ssize_t on_panic_store(struct kobject *kobj,
+			      struct kobj_attribute *attr, const char *buf,
 			      size_t len)
 {
 	return set_trigger(buf, &on_panic_trigger, len);
 }
 
-static struct subsys_attribute on_panic_attr =
+static struct kobj_attribute on_panic_attr =
 		__ATTR(on_panic, 0644, on_panic_show, on_panic_store);
 
 static void do_panic(void)

@@ -1177,17 +1196,19 @@ static void do_panic(void)
 
 static struct shutdown_trigger on_halt_trigger = {ON_HALT_STR, &stop_action};
 
-static ssize_t on_halt_show(struct kset *kset, char *page)
+static ssize_t on_halt_show(struct kobject *kobj, struct kobj_attribute *attr,
+			    char *page)
 {
 	return sprintf(page, "%s\n", on_halt_trigger.action->name);
 }
 
-static ssize_t on_halt_store(struct kset *kset, const char *buf, size_t len)
+static ssize_t on_halt_store(struct kobject *kobj, struct kobj_attribute *attr,
+			     const char *buf, size_t len)
 {
 	return set_trigger(buf, &on_halt_trigger, len);
 }
 
-static struct subsys_attribute on_halt_attr =
+static struct kobj_attribute on_halt_attr =
 		__ATTR(on_halt, 0644, on_halt_show, on_halt_store);
 
 

@@ -1203,17 +1224,19 @@ void (*_machine_halt)(void) = do_machine
 
 static struct shutdown_trigger on_poff_trigger = {ON_POFF_STR, &stop_action};
 
-static ssize_t on_poff_show(struct kset *kset, char *page)
+static ssize_t on_poff_show(struct kobject *kobj, struct kobj_attribute *attr,
+			    char *page)
 {
 	return sprintf(page, "%s\n", on_poff_trigger.action->name);
 }
 
-static ssize_t on_poff_store(struct kset *kset, const char *buf, size_t len)
+static ssize_t on_poff_store(struct kobject *kobj, struct kobj_attribute *attr,
+			     const char *buf, size_t len)
 {
 	return set_trigger(buf, &on_poff_trigger, len);
 }
 
-static struct subsys_attribute on_poff_attr =
+static struct kobj_attribute on_poff_attr =
 		__ATTR(on_poff, 0644, on_poff_show, on_poff_store);
 
 

@@ -1227,15 +1250,22 @@ void (*_machine_power_off)(void) = do_ma
 
 static void __init shutdown_triggers_init(void)
 {
-	if (firmware_register(&shutdown_actions_subsys))
+	shutdown_actions_kset = kset_create_and_register("shutdown_actions",
+							 NULL, firmware_kobj,
+							 NULL);
+	if (!shutdown_actions_kset)
 		goto fail;
-	if (subsys_create_file(&shutdown_actions_subsys, &on_reboot_attr))
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_reboot_attr.attr))
 		goto fail;
-	if (subsys_create_file(&shutdown_actions_subsys, &on_panic_attr))
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_panic_attr.attr))
 		goto fail;
-	if (subsys_create_file(&shutdown_actions_subsys, &on_halt_attr))
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_halt_attr.attr))
 		goto fail;
-	if (subsys_create_file(&shutdown_actions_subsys, &on_poff_attr))
+	if (sysfs_create_file(&shutdown_actions_kset->kobj,
+			      &on_poff_attr.attr))
 		goto fail;
 
 	return;