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Subject[PATCH] s390 (6/7): uni-processor kernel.
Date
Fixes for kernel configured with CONFIG_SMP=n.

diffstat:
arch/s390/kernel/entry.S | 6 ------
arch/s390/kernel/setup.c | 5 +++++
arch/s390/kernel/signal.c | 1 +
arch/s390/kernel/traps.c | 1 +
arch/s390/math-emu/math.c | 1 +
arch/s390x/kernel/entry.S | 4 ----
arch/s390x/kernel/setup.c | 5 +++++
arch/s390x/kernel/signal.c | 1 +
arch/s390x/kernel/signal32.c | 1 +
arch/s390x/kernel/traps.c | 4 +---
drivers/s390/char/sclp.c | 4 ++--
drivers/s390/cio/device_id.c | 1 +
drivers/s390/cio/device_pgid.c | 1 +
drivers/s390/cio/requestirq.c | 3 ++-
14 files changed, 22 insertions(+), 16 deletions(-)

diff -urN linux-2.5.64/arch/s390/kernel/entry.S linux-2.5.64-s390/arch/s390/kernel/entry.S
--- linux-2.5.64/arch/s390/kernel/entry.S Fri Mar 7 11:40:32 2003
+++ linux-2.5.64-s390/arch/s390/kernel/entry.S Fri Mar 7 11:40:56 2003
@@ -289,13 +289,9 @@
basr %r13,0
l %r13,.Lentry_base-.(%r13) # setup base pointer to &entry_base
GET_THREAD_INFO # load pointer to task_struct to R9
-#if CONFIG_SMP || CONFIG_PREEMPT
l %r1,BASED(.Lschedtail)
la %r14,BASED(sysc_return)
br %r1 # call schedule_tail, return to sysc_return
-#else
- b BASED(sysc_return)
-#endif

#
# clone, fork, vfork, exec and sigreturn need glue,
@@ -967,8 +963,6 @@
.Lsigaltstack: .long sys_sigaltstack
.Ltrace: .long syscall_trace
.Lvfork: .long sys_vfork
-#if CONFIG_SMP || CONFIG_PREEMPT
.Lschedtail: .long schedule_tail
-#endif


diff -urN linux-2.5.64/arch/s390/kernel/setup.c linux-2.5.64-s390/arch/s390/kernel/setup.c
--- linux-2.5.64/arch/s390/kernel/setup.c Wed Mar 5 04:28:58 2003
+++ linux-2.5.64-s390/arch/s390/kernel/setup.c Fri Mar 7 11:40:56 2003
@@ -41,6 +41,7 @@
#include <asm/smp.h>
#include <asm/mmu_context.h>
#include <asm/cpcmd.h>
+#include <asm/lowcore.h>

/*
* Machine setup..
@@ -534,10 +535,14 @@
(loops_per_jiffy/(5000/HZ))%100);
}
if (cpu_online_map & (1 << n)) {
+#ifdef CONFIG_SMP
if (smp_processor_id() == n)
cpuinfo = &S390_lowcore.cpu_data;
else
cpuinfo = &lowcore_ptr[n]->cpu_data;
+#else
+ cpuinfo = &S390_lowcore.cpu_data;
+#endif
seq_printf(m, "processor %li: "
"version = %02X, "
"identification = %06X, "
diff -urN linux-2.5.64/arch/s390/kernel/signal.c linux-2.5.64-s390/arch/s390/kernel/signal.c
--- linux-2.5.64/arch/s390/kernel/signal.c Wed Mar 5 04:29:33 2003
+++ linux-2.5.64-s390/arch/s390/kernel/signal.c Fri Mar 7 11:40:56 2003
@@ -29,6 +29,7 @@
#include <linux/binfmts.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
+#include <asm/lowcore.h>

#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))

diff -urN linux-2.5.64/arch/s390/kernel/traps.c linux-2.5.64-s390/arch/s390/kernel/traps.c
--- linux-2.5.64/arch/s390/kernel/traps.c Wed Mar 5 04:29:15 2003
+++ linux-2.5.64-s390/arch/s390/kernel/traps.c Fri Mar 7 11:40:56 2003
@@ -35,6 +35,7 @@
#include <asm/mathemu.h>
#include <asm/cpcmd.h>
#include <asm/s390_ext.h>
+#include <asm/lowcore.h>

/* Called from entry.S only */
extern void handle_per_exception(struct pt_regs *regs);
diff -urN linux-2.5.64/arch/s390/math-emu/math.c linux-2.5.64-s390/arch/s390/math-emu/math.c
--- linux-2.5.64/arch/s390/math-emu/math.c Wed Mar 5 04:29:16 2003
+++ linux-2.5.64-s390/arch/s390/math-emu/math.c Fri Mar 7 11:40:56 2003
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
+#include <asm/lowcore.h>

#include "sfp-util.h"
#include <math-emu/soft-fp.h>
diff -urN linux-2.5.64/arch/s390x/kernel/entry.S linux-2.5.64-s390/arch/s390x/kernel/entry.S
--- linux-2.5.64/arch/s390x/kernel/entry.S Fri Mar 7 11:40:32 2003
+++ linux-2.5.64-s390/arch/s390x/kernel/entry.S Fri Mar 7 11:40:56 2003
@@ -270,12 +270,8 @@
.globl ret_from_fork
ret_from_fork:
GET_THREAD_INFO # load pointer to task_struct to R9
-#if CONFIG_SMP || CONFIG_PREEMPT
larl %r14,sysc_return
jg schedule_tail # return to sysc_return
-#else
- j sysc_return
-#endif

#
# clone, fork, vfork, exec and sigreturn need glue,
diff -urN linux-2.5.64/arch/s390x/kernel/setup.c linux-2.5.64-s390/arch/s390x/kernel/setup.c
--- linux-2.5.64/arch/s390x/kernel/setup.c Wed Mar 5 04:29:16 2003
+++ linux-2.5.64-s390/arch/s390x/kernel/setup.c Fri Mar 7 11:40:56 2003
@@ -41,6 +41,7 @@
#include <asm/smp.h>
#include <asm/mmu_context.h>
#include <asm/cpcmd.h>
+#include <asm/lowcore.h>

/*
* Machine setup..
@@ -528,10 +529,14 @@
(loops_per_jiffy/(5000/HZ))%100);
}
if (cpu_online_map & (1 << n)) {
+#ifdef CONFIG_SMP
if (smp_processor_id() == n)
cpuinfo = &S390_lowcore.cpu_data;
else
cpuinfo = &lowcore_ptr[n]->cpu_data;
+#else
+ cpuinfo = &S390_lowcore.cpu_data;
+#endif
seq_printf(m, "processor %li: "
"version = %02X, "
"identification = %06X, "
diff -urN linux-2.5.64/arch/s390x/kernel/signal.c linux-2.5.64-s390/arch/s390x/kernel/signal.c
--- linux-2.5.64/arch/s390x/kernel/signal.c Wed Mar 5 04:29:24 2003
+++ linux-2.5.64-s390/arch/s390x/kernel/signal.c Fri Mar 7 11:40:56 2003
@@ -29,6 +29,7 @@
#include <linux/binfmts.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
+#include <asm/lowcore.h>

#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))

diff -urN linux-2.5.64/arch/s390x/kernel/signal32.c linux-2.5.64-s390/arch/s390x/kernel/signal32.c
--- linux-2.5.64/arch/s390x/kernel/signal32.c Wed Mar 5 04:29:18 2003
+++ linux-2.5.64-s390/arch/s390x/kernel/signal32.c Fri Mar 7 11:40:56 2003
@@ -29,6 +29,7 @@
#include <linux/binfmts.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
+#include <asm/lowcore.h>
#include "linux32.h"
#include "ptrace32.h"

diff -urN linux-2.5.64/arch/s390x/kernel/traps.c linux-2.5.64-s390/arch/s390x/kernel/traps.c
--- linux-2.5.64/arch/s390x/kernel/traps.c Wed Mar 5 04:29:32 2003
+++ linux-2.5.64-s390/arch/s390x/kernel/traps.c Fri Mar 7 11:40:56 2003
@@ -32,11 +32,9 @@
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/atomic.h>
-#if CONFIG_REMOTE_DEBUG
-#include <asm/gdb-stub.h>
-#endif
#include <asm/cpcmd.h>
#include <asm/s390_ext.h>
+#include <asm/lowcore.h>

/* Called from entry.S only */
extern void handle_per_exception(struct pt_regs *regs);
diff -urN linux-2.5.64/drivers/s390/char/sclp.c linux-2.5.64-s390/drivers/s390/char/sclp.c
--- linux-2.5.64/drivers/s390/char/sclp.c Wed Mar 5 04:29:24 2003
+++ linux-2.5.64-s390/drivers/s390/char/sclp.c Fri Mar 7 11:40:56 2003
@@ -489,8 +489,8 @@
{
psw_t quiesce_psw;

- quiesce_psw.mask = _DW_PSW_MASK;
- queisce_psw.addr = 0xfff;
+ quiesce_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT;
+ quiesce_psw.addr = 0xfff;
__load_psw(quiesce_psw);
}
#endif
diff -urN linux-2.5.64/drivers/s390/cio/device_id.c linux-2.5.64-s390/drivers/s390/cio/device_id.c
--- linux-2.5.64/drivers/s390/cio/device_id.c Wed Mar 5 04:28:52 2003
+++ linux-2.5.64-s390/drivers/s390/cio/device_id.c Fri Mar 7 11:40:56 2003
@@ -16,6 +16,7 @@
#include <asm/ccwdev.h>
#include <asm/delay.h>
#include <asm/cio.h>
+#include <asm/lowcore.h>

#include "cio.h"
#include "cio_debug.h"
diff -urN linux-2.5.64/drivers/s390/cio/device_pgid.c linux-2.5.64-s390/drivers/s390/cio/device_pgid.c
--- linux-2.5.64/drivers/s390/cio/device_pgid.c Wed Mar 5 04:29:21 2003
+++ linux-2.5.64-s390/drivers/s390/cio/device_pgid.c Fri Mar 7 11:40:56 2003
@@ -16,6 +16,7 @@
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/delay.h>
+#include <asm/lowcore.h>

#include "cio.h"
#include "cio_debug.h"
diff -urN linux-2.5.64/drivers/s390/cio/requestirq.c linux-2.5.64-s390/drivers/s390/cio/requestirq.c
--- linux-2.5.64/drivers/s390/cio/requestirq.c Wed Mar 5 04:29:31 2003
+++ linux-2.5.64-s390/drivers/s390/cio/requestirq.c Fri Mar 7 11:40:56 2003
@@ -1,7 +1,7 @@
/*
* drivers/s390/cio/requestirq.c
* S/390 common I/O routines -- enabling and disabling of devices
- * $Revision: 1.42 $
+ * $Revision: 1.43 $
*
* Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH,
* IBM Corporation
@@ -14,6 +14,7 @@
#include <linux/config.h>
#include <linux/device.h>
#include <linux/init.h>
+#include <asm/lowcore.h>

#include "css.h"

-
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