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-rw-r--r--arch/s390/crypto/crypt_s390.h2
-rw-r--r--arch/s390/kernel/early.c45
-rw-r--r--arch/s390/kernel/entry.S7
-rw-r--r--arch/s390/kernel/entry64.S7
-rw-r--r--arch/s390/kernel/ipl.c17
-rw-r--r--arch/s390/kernel/process.c6
-rw-r--r--arch/s390/kernel/smp.c63
-rw-r--r--arch/s390/kernel/time.c4
-rw-r--r--arch/s390/kernel/vtime.c4
-rw-r--r--arch/s390/lib/Makefile4
10 files changed, 63 insertions, 96 deletions
diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index 2775d2618332..95f5160df27f 100644
--- a/arch/s390/crypto/crypt_s390.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -24,7 +24,7 @@
#define CRYPT_S390_PRIORITY 300
#define CRYPT_S390_COMPOSITE_PRIORITY 400
-/* s930 cryptographic operations */
+/* s390 cryptographic operations */
enum crypt_s390_operations {
CRYPT_S390_KM = 0x0100,
CRYPT_S390_KMC = 0x0200,
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 50538e545618..e6289ee74ecd 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -171,37 +171,6 @@ static inline int memory_fast_detect(void)
}
#endif
-#define ADDR2G (1UL << 31)
-
-static noinline __init unsigned long sclp_memory_detect(void)
-{
- struct sclp_readinfo_sccb *sccb;
- unsigned long long memsize;
-
- sccb = &s390_readinfo_sccb;
-
- if (sccb->header.response_code != 0x10)
- return 0;
-
- if (sccb->rnsize)
- memsize = sccb->rnsize << 20;
- else
- memsize = sccb->rnsize2 << 20;
- if (sccb->rnmax)
- memsize *= sccb->rnmax;
- else
- memsize *= sccb->rnmax2;
-#ifndef CONFIG_64BIT
- /*
- * Can't deal with more than 2G in 31 bit addressing mode, so
- * limit the value in order to avoid strange side effects.
- */
- if (memsize > ADDR2G)
- memsize = ADDR2G;
-#endif
- return (unsigned long) memsize;
-}
-
static inline __init unsigned long __tprot(unsigned long addr)
{
int cc = -1;
@@ -218,6 +187,7 @@ static inline __init unsigned long __tprot(unsigned long addr)
/* Checking memory in 128KB increments. */
#define CHUNK_INCR (1UL << 17)
+#define ADDR2G (1UL << 31)
static noinline __init void find_memory_chunks(unsigned long memsize)
{
@@ -293,7 +263,7 @@ static noinline __init void setup_lowcore_early(void)
*/
void __init startup_init(void)
{
- unsigned long memsize;
+ unsigned long long memsize;
ipl_save_parameters();
clear_bss_section();
@@ -305,8 +275,17 @@ void __init startup_init(void)
sort_main_extable();
setup_lowcore_early();
sclp_readinfo_early();
+ sclp_facilities_detect();
memsize = sclp_memory_detect();
+#ifndef CONFIG_64BIT
+ /*
+ * Can't deal with more than 2G in 31 bit addressing mode, so
+ * limit the value in order to avoid strange side effects.
+ */
+ if (memsize > ADDR2G)
+ memsize = ADDR2G;
+#endif
if (memory_fast_detect() < 0)
- find_memory_chunks(memsize);
+ find_memory_chunks((unsigned long) memsize);
lockdep_on();
}
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 6234c6978a1f..bc7ff3658c3d 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -107,6 +107,11 @@ STACK_SIZE = 1 << STACK_SHIFT
l %r13,__LC_SVC_NEW_PSW+4 # load &system_call to %r13
.endm
+ .macro SAVE_ALL_SVC psworg,savearea
+ la %r12,\psworg
+ l %r15,__LC_KERNEL_STACK # problem state -> load ksp
+ .endm
+
.macro SAVE_ALL_SYNC psworg,savearea
la %r12,\psworg
tm \psworg+1,0x01 # test problem state bit
@@ -218,7 +223,7 @@ system_call:
STORE_TIMER __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_BASE __LC_SAVE_AREA
- SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
+ SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
lh %r7,0x8a # get svc number from lowcore
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 685f11faa4bc..2a7b1304418b 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -99,6 +99,11 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NEED_RESCHED | \
larl %r13,system_call
.endm
+ .macro SAVE_ALL_SVC psworg,savearea
+ la %r12,\psworg
+ lg %r15,__LC_KERNEL_STACK # problem state -> load ksp
+ .endm
+
.macro SAVE_ALL_SYNC psworg,savearea
la %r12,\psworg
tm \psworg+1,0x01 # test problem state bit
@@ -207,7 +212,7 @@ system_call:
STORE_TIMER __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_BASE __LC_SAVE_AREA
- SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
+ SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
llgh %r7,__LC_SVC_INT_CODE # get svc number from lowcore
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 367caf92ea78..82b131ddd7ff 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -25,10 +25,6 @@
#define IPL_PARM_BLOCK_VERSION 0
-#define SCCB_VALID (s390_readinfo_sccb.header.response_code == 0x10)
-#define SCCB_LOADPARM (&s390_readinfo_sccb.loadparm)
-#define SCCB_FLAG (s390_readinfo_sccb.flags)
-
#define IPL_UNKNOWN_STR "unknown"
#define IPL_CCW_STR "ccw"
#define IPL_FCP_STR "fcp"
@@ -146,6 +142,8 @@ 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)
{
register unsigned long _addr asm("0") = (unsigned long) addr;
@@ -375,9 +373,9 @@ static ssize_t ipl_ccw_loadparm_show(struct kset *kset, char *page)
{
char loadparm[LOADPARM_LEN + 1] = {};
- if (!SCCB_VALID)
+ if (!sclp_ipl_info.is_valid)
return sprintf(page, "#unknown#\n");
- memcpy(loadparm, SCCB_LOADPARM, LOADPARM_LEN);
+ memcpy(loadparm, &sclp_ipl_info.loadparm, LOADPARM_LEN);
EBCASC(loadparm, LOADPARM_LEN);
strstrip(loadparm);
return sprintf(page, "%s\n", loadparm);
@@ -910,9 +908,9 @@ static int __init reipl_ccw_init(void)
reipl_block_ccw->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN;
reipl_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW;
/* check if read scp info worked and set loadparm */
- if (SCCB_VALID)
+ if (sclp_ipl_info.is_valid)
memcpy(reipl_block_ccw->ipl_info.ccw.load_param,
- SCCB_LOADPARM, LOADPARM_LEN);
+ &sclp_ipl_info.loadparm, LOADPARM_LEN);
else
/* read scp info failed: set empty loadparm (EBCDIC blanks) */
memset(reipl_block_ccw->ipl_info.ccw.load_param, 0x40,
@@ -1007,7 +1005,7 @@ static int __init dump_fcp_init(void)
{
int rc;
- if(!(SCCB_FLAG & 0x2) || !SCCB_VALID)
+ if (!sclp_ipl_info.has_dump)
return 0; /* LDIPL DUMP is not installed */
if (!diag308_set_works)
return 0;
@@ -1088,6 +1086,7 @@ static int __init s390_ipl_init(void)
{
int rc;
+ sclp_get_ipl_info(&sclp_ipl_info);
reipl_probe();
rc = ipl_init();
if (rc)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index eb43c3b31269..441975b796fb 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -93,8 +93,8 @@ void do_monitor_call(struct pt_regs *regs, long interruption_code)
/* disable monitor call class 0 */
__ctl_clear_bit(8, 15);
- atomic_notifier_call_chain(&idle_chain, CPU_NOT_IDLE,
- (void *)(long) smp_processor_id());
+ atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
+ (void *)(long) smp_processor_id());
}
extern void s390_handle_mcck(void);
@@ -115,7 +115,7 @@ static void default_idle(void)
}
rc = atomic_notifier_call_chain(&idle_chain,
- CPU_IDLE, (void *)(long) cpu);
+ S390_CPU_IDLE, (void *)(long) cpu);
if (rc != NOTIFY_OK && rc != NOTIFY_DONE)
BUG();
if (rc != NOTIFY_OK) {
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8ff2feaf9b00..182c085ae4dd 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -410,58 +410,40 @@ EXPORT_SYMBOL(smp_ctl_clear_bit);
unsigned int zfcpdump_prefix_array[NR_CPUS + 1] \
__attribute__((__section__(".data")));
-static void __init smp_get_save_areas(void)
+static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
{
- unsigned int cpu, cpu_num, rc;
- __u16 boot_cpu_addr;
-
if (ipl_info.type != IPL_TYPE_FCP_DUMP)
return;
- boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
- cpu_num = 1;
- for (cpu = 0; cpu <= 65535; cpu++) {
- if ((u16) cpu == boot_cpu_addr)
- continue;
- __cpu_logical_map[1] = (__u16) cpu;
- if (signal_processor(1, sigp_sense) == sigp_not_operational)
- continue;
- if (cpu_num >= NR_CPUS) {
- printk("WARNING: Registers for cpu %i are not "
- "saved, since dump kernel was compiled with"
- "NR_CPUS=%i!\n", cpu_num, NR_CPUS);
- continue;
- }
- zfcpdump_save_areas[cpu_num] =
- alloc_bootmem(sizeof(union save_area));
- while (1) {
- rc = signal_processor(1, sigp_stop_and_store_status);
- if (rc != sigp_busy)
- break;
- cpu_relax();
- }
- memcpy(zfcpdump_save_areas[cpu_num],
- (void *)(unsigned long) store_prefix() +
- SAVE_AREA_BASE, SAVE_AREA_SIZE);
-#ifdef __s390x__
- /* copy original prefix register */
- zfcpdump_save_areas[cpu_num]->s390x.pref_reg =
- zfcpdump_prefix_array[cpu_num];
-#endif
- cpu_num++;
+ if (cpu >= NR_CPUS) {
+ printk(KERN_WARNING "Registers for cpu %i not saved since dump "
+ "kernel was compiled with NR_CPUS=%i\n", cpu, NR_CPUS);
+ return;
}
+ zfcpdump_save_areas[cpu] = alloc_bootmem(sizeof(union save_area));
+ __cpu_logical_map[1] = (__u16) phy_cpu;
+ while (signal_processor(1, sigp_stop_and_store_status) == sigp_busy)
+ cpu_relax();
+ memcpy(zfcpdump_save_areas[cpu],
+ (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
+ SAVE_AREA_SIZE);
+#ifdef CONFIG_64BIT
+ /* copy original prefix register */
+ zfcpdump_save_areas[cpu]->s390x.pref_reg = zfcpdump_prefix_array[cpu];
+#endif
}
union save_area *zfcpdump_save_areas[NR_CPUS + 1];
EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
#else
-#define smp_get_save_areas() do { } while (0)
-#endif
+
+static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
+
+#endif /* CONFIG_ZFCPDUMP || CONFIG_ZFCPDUMP_MODULE */
/*
* Lets check how many CPUs we have.
*/
-
static unsigned int __init smp_count_cpus(void)
{
unsigned int cpu, num_cpus;
@@ -470,7 +452,6 @@ static unsigned int __init smp_count_cpus(void)
/*
* cpu 0 is the boot cpu. See smp_prepare_boot_cpu.
*/
-
boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
current_thread_info()->cpu = 0;
num_cpus = 1;
@@ -480,12 +461,11 @@ static unsigned int __init smp_count_cpus(void)
__cpu_logical_map[1] = (__u16) cpu;
if (signal_processor(1, sigp_sense) == sigp_not_operational)
continue;
+ smp_get_save_area(num_cpus, cpu);
num_cpus++;
}
-
printk("Detected %d CPU's\n", (int) num_cpus);
printk("Boot cpu address %2X\n", boot_cpu_addr);
-
return num_cpus;
}
@@ -606,7 +586,6 @@ void __init smp_setup_cpu_possible_map(void)
{
unsigned int phy_cpus, pos_cpus, cpu;
- smp_get_save_areas();
phy_cpus = smp_count_cpus();
pos_cpus = min(phy_cpus + additional_cpus, (unsigned int) NR_CPUS);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 9c2872a7cca7..48dae49bc1ec 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -226,10 +226,10 @@ static int nohz_idle_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
switch (action) {
- case CPU_IDLE:
+ case S390_CPU_IDLE:
stop_hz_timer();
break;
- case CPU_NOT_IDLE:
+ case S390_CPU_NOT_IDLE:
start_hz_timer();
break;
}
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 1e1a6ee2cac1..b6ed143e8597 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -545,10 +545,10 @@ static int vtimer_idle_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
switch (action) {
- case CPU_IDLE:
+ case S390_CPU_IDLE:
stop_cpu_timer();
break;
- case CPU_NOT_IDLE:
+ case S390_CPU_NOT_IDLE:
start_cpu_timer();
break;
}
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 59aea65ce99f..52084436ab69 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -4,7 +4,7 @@
EXTRA_AFLAGS := -traditional
-lib-y += delay.o string.o uaccess_std.o uaccess_pt.o qrnnd.o
-obj-$(CONFIG_32BIT) += div64.o
+lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
+obj-$(CONFIG_32BIT) += div64.o qrnnd.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
lib-$(CONFIG_SMP) += spinlock.o
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-04 15:38:49 +0000