From 3e1d1d28d99dabe63c64f7f40f1ca1d646de1f73 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <christoph@lameter.com>
Date: Fri, 24 Jun 2005 23:13:50 -0700
Subject: [PATCH] Cleanup patch for process freezing

1. Establish a simple API for process freezing defined in linux/include/sched.h:

   frozen(process)		Check for frozen process
   freezing(process)		Check if a process is being frozen
   freeze(process)		Tell a process to freeze (go to refrigerator)
   thaw_process(process)	Restart process
   frozen_process(process)	Process is frozen now

2. Remove all references to PF_FREEZE and PF_FROZEN from all
   kernel sources except sched.h

3. Fix numerous locations where try_to_freeze is manually done by a driver

4. Remove the argument that is no longer necessary from two function calls.

5. Some whitespace cleanup

6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
   cleared before setting PF_FROZEN, recalc_sigpending does not check
   PF_FROZEN).

This patch does not address the problem of freeze_processes() violating the rule
that a task may only modify its own flags by setting PF_FREEZE. This is not clean
in an SMP environment. freeze(process) is therefore not SMP safe!

Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/signal.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 50311eb07a24..5aef7e406ef5 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -371,10 +371,8 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
 	if (!user_mode(regs))
 		return 1;
 
-	if (current->flags & PF_FREEZE) {
-		refrigerator(0);
+	if (try_to_freeze()) 
 		goto no_signal;
-	}
 
 	if (!oldset)
 		oldset = &current->blocked;
-- 
cgit v1.2.2


From 316240f66a64c95e373d52dc401d882d77a594ee Mon Sep 17 00:00:00 2001
From: Hirokazu Takata <takata@linux-m32r.org>
Date: Thu, 7 Jul 2005 17:59:32 -0700
Subject: [PATCH] m32r: framebuffer device support

This patch is for supporting Epson s1d13xxx framebuffer device for m32r.  #
Sorry, a little bigger.

The Epson s1d13806 is already supported by 2.6.12 kernel, and its driver is
placed as drivers/video/s1d13xxxfb.c.

For the m32r, a header file include/asm-m32r/s1d13806.h was prepared for
several m32r target platforms.  It was originally generated by an Epson
tool S1D13806CFG.EXE, and modified manually for the m32r platforms.

Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/setup_m32700ut.c | 55 ++++++++++++++++++++++++++++++++++++---
 arch/m32r/kernel/setup_mappi.c    | 51 ++++++++++++++++++++++++++++++++++--
 arch/m32r/kernel/setup_mappi2.c   |  4 +--
 arch/m32r/kernel/setup_mappi3.c   | 52 ++++++++++++++++++++++++++++++++++--
 arch/m32r/kernel/setup_oaks32r.c  |  5 ++--
 arch/m32r/kernel/setup_opsput.c   | 53 ++++++++++++++++++++++++++++++++++---
 6 files changed, 204 insertions(+), 16 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/setup_m32700ut.c b/arch/m32r/kernel/setup_m32700ut.c
index b014e2c1e524..a146b24a556b 100644
--- a/arch/m32r/kernel/setup_m32700ut.c
+++ b/arch/m32r/kernel/setup_m32700ut.c
@@ -3,8 +3,8 @@
  *
  *  Setup routines for Renesas M32700UT Board
  *
- *  Copyright (c) 2002 	Hiroyuki Kondo, Hirokazu Takata,
- *                      Hitoshi Yamamoto, Takeo Takahashi
+ *  Copyright (c) 2002-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Takeo Takahashi
  *
  *  This file is subject to the terms and conditions of the GNU General
  *  Public License.  See the file "COPYING" in the main directory of this
@@ -435,7 +435,7 @@ void __init init_IRQ(void)
 	icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 	enable_m32700ut_irq(M32R_IRQ_INT2);
 
-//#if defined(CONFIG_VIDEO_M32R_AR)
+#if defined(CONFIG_VIDEO_M32R_AR)
 	/*
 	 * INT3# is used for AR
 	 */
@@ -445,9 +445,11 @@ void __init init_IRQ(void)
 	irq_desc[M32R_IRQ_INT3].depth = 1;
 	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_m32700ut_irq(M32R_IRQ_INT3);
-//#endif	/* CONFIG_VIDEO_M32R_AR */
+#endif	/* CONFIG_VIDEO_M32R_AR */
 }
 
+#if defined(CONFIG_SMC91X)
+
 #define LAN_IOSTART     0x300
 #define LAN_IOEND       0x320
 static struct resource smc91x_resources[] = {
@@ -469,10 +471,55 @@ static struct platform_device smc91x_device = {
 	.num_resources  = ARRAY_SIZE(smc91x_resources),
 	.resource       = smc91x_resources,
 };
+#endif
+
+#if defined(CONFIG_FB_S1D13XXX)
+
+#include <video/s1d13xxxfb.h>
+#include <asm/s1d13806.h>
+
+static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
+	.initregs		= s1d13xxxfb_initregs,
+	.initregssize		= ARRAY_SIZE(s1d13xxxfb_initregs),
+	.platform_init_video	= NULL,
+#ifdef CONFIG_PM
+	.platform_suspend_video	= NULL,
+	.platform_resume_video	= NULL,
+#endif
+};
+
+static struct resource s1d13xxxfb_resources[] = {
+	[0] = {
+		.start  = 0x10600000UL,
+		.end    = 0x1073FFFFUL,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = 0x10400000UL,
+		.end    = 0x104001FFUL,
+		.flags  = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device s1d13xxxfb_device = {
+	.name		= S1D_DEVICENAME,
+	.id		= 0,
+	.dev            = {
+		.platform_data  = &s1d13xxxfb_data,
+	},
+	.num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
+	.resource       = s1d13xxxfb_resources,
+};
+#endif
 
 static int __init platform_init(void)
 {
+#if defined(CONFIG_SMC91X)
 	platform_device_register(&smc91x_device);
+#endif
+#if defined(CONFIG_FB_S1D13XXX)
+	platform_device_register(&s1d13xxxfb_device);
+#endif
 	return 0;
 }
 arch_initcall(platform_init);
diff --git a/arch/m32r/kernel/setup_mappi.c b/arch/m32r/kernel/setup_mappi.c
index aaf8e569b930..4e709809efc5 100644
--- a/arch/m32r/kernel/setup_mappi.c
+++ b/arch/m32r/kernel/setup_mappi.c
@@ -3,14 +3,15 @@
  *
  *  Setup routines for Renesas MAPPI Board
  *
- *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
- *                            Hitoshi Yamamoto
+ *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto
  */
 
 #include <linux/config.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/device.h>
 
 #include <asm/system.h>
 #include <asm/m32r.h>
@@ -158,3 +159,49 @@ void __init init_IRQ(void)
 	disable_mappi_irq(M32R_IRQ_INT2);
 #endif /* CONFIG_M32RPCC */
 }
+
+#if defined(CONFIG_FB_S1D13XXX)
+
+#include <video/s1d13xxxfb.h>
+#include <asm/s1d13806.h>
+
+static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
+	.initregs		= s1d13xxxfb_initregs,
+	.initregssize		= ARRAY_SIZE(s1d13xxxfb_initregs),
+	.platform_init_video	= NULL,
+#ifdef CONFIG_PM
+	.platform_suspend_video	= NULL,
+	.platform_resume_video	= NULL,
+#endif
+};
+
+static struct resource s1d13xxxfb_resources[] = {
+	[0] = {
+		.start  = 0x10200000UL,
+		.end    = 0x1033FFFFUL,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = 0x10000000UL,
+		.end    = 0x100001FFUL,
+		.flags  = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device s1d13xxxfb_device = {
+	.name		= S1D_DEVICENAME,
+	.id		= 0,
+	.dev            = {
+		.platform_data  = &s1d13xxxfb_data,
+	},
+	.num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
+	.resource       = s1d13xxxfb_resources,
+};
+
+static int __init platform_init(void)
+{
+	platform_device_register(&s1d13xxxfb_device);
+	return 0;
+}
+arch_initcall(platform_init);
+#endif
diff --git a/arch/m32r/kernel/setup_mappi2.c b/arch/m32r/kernel/setup_mappi2.c
index 38d5e9a41427..a1d801598aa4 100644
--- a/arch/m32r/kernel/setup_mappi2.c
+++ b/arch/m32r/kernel/setup_mappi2.c
@@ -3,8 +3,8 @@
  *
  *  Setup routines for Renesas MAPPI-II(M3A-ZA36) Board
  *
- *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
- *                            Hitoshi Yamamoto, Mamoru Sakugawa
+ *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Mamoru Sakugawa
  */
 
 #include <linux/config.h>
diff --git a/arch/m32r/kernel/setup_mappi3.c b/arch/m32r/kernel/setup_mappi3.c
index 3d60a85aaec5..a76412e883e8 100644
--- a/arch/m32r/kernel/setup_mappi3.c
+++ b/arch/m32r/kernel/setup_mappi3.c
@@ -3,8 +3,8 @@
  *
  *  Setup routines for Renesas MAPPI-III(M3A-2170) Board
  *
- *  Copyright (c) 2001-2005   Hiroyuki Kondo, Hirokazu Takata,
- *                            Hitoshi Yamamoto, Mamoru Sakugawa
+ *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Mamoru Sakugawa
  */
 
 #include <linux/config.h>
@@ -178,6 +178,8 @@ void __init init_IRQ(void)
 #endif /* CONFIG_M32R_CFC */
 }
 
+#if defined(CONFIG_SMC91X)
+
 #define LAN_IOSTART     0x300
 #define LAN_IOEND       0x320
 static struct resource smc91x_resources[] = {
@@ -200,9 +202,55 @@ static struct platform_device smc91x_device = {
 	.resource       = smc91x_resources,
 };
 
+#endif
+
+#if defined(CONFIG_FB_S1D13XXX)
+
+#include <video/s1d13xxxfb.h>
+#include <asm/s1d13806.h>
+
+static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
+	.initregs		= s1d13xxxfb_initregs,
+	.initregssize		= ARRAY_SIZE(s1d13xxxfb_initregs),
+	.platform_init_video	= NULL,
+#ifdef CONFIG_PM
+	.platform_suspend_video	= NULL,
+	.platform_resume_video	= NULL,
+#endif
+};
+
+static struct resource s1d13xxxfb_resources[] = {
+	[0] = {
+		.start  = 0x1d600000UL,
+		.end    = 0x1d73FFFFUL,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = 0x1d400000UL,
+		.end    = 0x1d4001FFUL,
+		.flags  = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device s1d13xxxfb_device = {
+	.name		= S1D_DEVICENAME,
+	.id		= 0,
+	.dev            = {
+		.platform_data  = &s1d13xxxfb_data,
+	},
+	.num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
+	.resource       = s1d13xxxfb_resources,
+};
+#endif
+
 static int __init platform_init(void)
 {
+#if defined(CONFIG_SMC91X)
 	platform_device_register(&smc91x_device);
+#endif
+#if defined(CONFIG_FB_S1D13XXX)
+	platform_device_register(&s1d13xxxfb_device);
+#endif
 	return 0;
 }
 arch_initcall(platform_init);
diff --git a/arch/m32r/kernel/setup_oaks32r.c b/arch/m32r/kernel/setup_oaks32r.c
index d656640badc9..45add5b76f19 100644
--- a/arch/m32r/kernel/setup_oaks32r.c
+++ b/arch/m32r/kernel/setup_oaks32r.c
@@ -3,8 +3,8 @@
  *
  *  Setup routines for OAKS32R Board
  *
- *  Copyright (c) 2002-2004   Hiroyuki Kondo, Hirokazu Takata,
- *                            Hitoshi Yamamoto, Mamoru Sakugawa
+ *  Copyright (c) 2002-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Mamoru Sakugawa
  */
 
 #include <linux/config.h>
@@ -139,5 +139,4 @@ void __init init_IRQ(void)
 	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
 	disable_oaks32r_irq(M32R_IRQ_SIO1_S);
 #endif /* CONFIG_SERIAL_M32R_SIO */
-
 }
diff --git a/arch/m32r/kernel/setup_opsput.c b/arch/m32r/kernel/setup_opsput.c
index 86f4cf2a86c3..f0301f58bcce 100644
--- a/arch/m32r/kernel/setup_opsput.c
+++ b/arch/m32r/kernel/setup_opsput.c
@@ -3,7 +3,7 @@
  *
  *  Setup routines for Renesas OPSPUT Board
  *
- *  Copyright (c) 2002-2004
+ *  Copyright (c) 2002-2005
  * 	Hiroyuki Kondo, Hirokazu Takata,
  *      Hitoshi Yamamoto, Takeo Takahashi, Mamoru Sakugawa
  *
@@ -439,7 +439,7 @@ void __init init_IRQ(void)
 	icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
 	enable_opsput_irq(M32R_IRQ_INT2);
 
-//#if defined(CONFIG_VIDEO_M32R_AR)
+#if defined(CONFIG_VIDEO_M32R_AR)
 	/*
 	 * INT3# is used for AR
 	 */
@@ -449,9 +449,11 @@ void __init init_IRQ(void)
 	irq_desc[M32R_IRQ_INT3].depth = 1;
 	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
 	disable_opsput_irq(M32R_IRQ_INT3);
-//#endif	/* CONFIG_VIDEO_M32R_AR */
+#endif /* CONFIG_VIDEO_M32R_AR */
 }
 
+#if defined(CONFIG_SMC91X)
+
 #define LAN_IOSTART     0x300
 #define LAN_IOEND       0x320
 static struct resource smc91x_resources[] = {
@@ -473,10 +475,55 @@ static struct platform_device smc91x_device = {
 	.num_resources  = ARRAY_SIZE(smc91x_resources),
 	.resource       = smc91x_resources,
 };
+#endif
+
+#if defined(CONFIG_FB_S1D13XXX)
+
+#include <video/s1d13xxxfb.h>
+#include <asm/s1d13806.h>
+
+static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
+	.initregs		= s1d13xxxfb_initregs,
+	.initregssize		= ARRAY_SIZE(s1d13xxxfb_initregs),
+	.platform_init_video	= NULL,
+#ifdef CONFIG_PM
+	.platform_suspend_video	= NULL,
+	.platform_resume_video	= NULL,
+#endif
+};
+
+static struct resource s1d13xxxfb_resources[] = {
+	[0] = {
+		.start  = 0x10600000UL,
+		.end    = 0x1073FFFFUL,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = 0x10400000UL,
+		.end    = 0x104001FFUL,
+		.flags  = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device s1d13xxxfb_device = {
+	.name		= S1D_DEVICENAME,
+	.id		= 0,
+	.dev            = {
+		.platform_data  = &s1d13xxxfb_data,
+	},
+	.num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
+	.resource       = s1d13xxxfb_resources,
+};
+#endif
 
 static int __init platform_init(void)
 {
+#if defined(CONFIG_SMC91X)
 	platform_device_register(&smc91x_device);
+#endif
+#if defined(CONFIG_FB_S1D13XXX)
+	platform_device_register(&s1d13xxxfb_device);
+#endif
 	return 0;
 }
 arch_initcall(platform_init);
-- 
cgit v1.2.2


From 59586e5a262a29361c45c929ea3253d4aec830b0 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Tue, 26 Jul 2005 11:36:01 -0600
Subject: [PATCH] Don't export machine_restart, machine_halt, or
 machine_power_off.

machine_restart, machine_halt and machine_power_off are machine
specific hooks deep into the reboot logic, that modules
have no business messing with.  Usually code should be calling
kernel_restart, kernel_halt, kernel_power_off, or
emergency_restart. So don't export machine_restart,
machine_halt, and machine_power_off so we can catch buggy users.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/process.c | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index b556c3cf6495..ea13a8f4d8b0 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -115,8 +115,6 @@ void machine_restart(char *__unused)
 		cpu_relax();
 }
 
-EXPORT_SYMBOL(machine_restart);
-
 void machine_halt(void)
 {
 	printk("Please push reset button!\n");
@@ -124,15 +122,11 @@ void machine_halt(void)
 		cpu_relax();
 }
 
-EXPORT_SYMBOL(machine_halt);
-
 void machine_power_off(void)
 {
 	/* M32R_FIXME */
 }
 
-EXPORT_SYMBOL(machine_power_off);
-
 static int __init idle_setup (char *str)
 {
 	if (!strncmp(str, "poll", 4)) {
-- 
cgit v1.2.2


From 2757a71c3122c7653e3dd8077ad6ca71efb1d450 Mon Sep 17 00:00:00 2001
From: Hirokazu Takata <takata@linux-m32r.org>
Date: Mon, 1 Aug 2005 21:11:35 -0700
Subject: [PATCH] m32r: Fix local-timer event handling

There was a scheduling problem of the m32r SMP kernel; A process rarely
stopped and gave no responding but the other process have been handled by
the other CPU still lives, then if we did something in the other terminal
or something like that, the stopped process came back to life and continued
its operation...  (ex.  LMbench: lat_sig)

In the m32r SMP kernel, a local-timer event is delivered by using an
IPI(inter processor interrupts); LOCAL_TIMER_IPI.  And a function
smp_send_timer() is prepared to send the LOCAL_TIMER_IPI from the current
CPU to the other CPUs.

The funtion smp_send_timer() was placed and used in do_IRQ() in
former times (before 2.6.10-rc3-mm1 kernel), however, it was
unintentionally removed when arch/m32r/kernel/irq.c was modified to
employ the generic hardirq framework (CONFIG_GENERIC_HARDIRQ) in
my previous patch.

  [PATCH 2.6.10-rc3-mm1] m32r: Use generic hardirq framework
  http://www.ussg.iu.edu/hypermail/linux/kernel/0412.2/0358.html

The following patch fixes the above problem.

Signed-off-by: Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/time.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 3c4707280a52..8a2b77bc5749 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -205,8 +205,7 @@ static long last_rtc_update = 0;
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-static inline void
-do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 #ifndef CONFIG_SMP
 	profile_tick(CPU_PROFILING, regs);
@@ -221,6 +220,7 @@ do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 	 * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
 	 * called as close as possible to 500 ms before the new second starts.
 	 */
+	write_seqlock(&xtime_lock);
 	if ((time_status & STA_UNSYNC) == 0
 		&& xtime.tv_sec > last_rtc_update + 660
 		&& (xtime.tv_nsec / 1000) >= 500000 - ((unsigned)TICK_SIZE) / 2
@@ -231,6 +231,7 @@ do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 		else	/* do it again in 60 s */
 			last_rtc_update = xtime.tv_sec - 600;
 	}
+	write_sequnlock(&xtime_lock);
 	/* As we return to user mode fire off the other CPU schedulers..
 	   this is basically because we don't yet share IRQ's around.
 	   This message is rigged to be safe on the 386 - basically it's
@@ -238,14 +239,8 @@ do_timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 
 #ifdef CONFIG_SMP
 	smp_local_timer_interrupt(regs);
+	smp_send_timer();
 #endif
-}
-
-irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	write_seqlock(&xtime_lock);
-	do_timer_interrupt(irq, NULL, regs);
-	write_sequnlock(&xtime_lock);
 
 	return IRQ_HANDLED;
 }
-- 
cgit v1.2.2


From e231a9c4fdf402bcfd5a7c27be49050882631a95 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@www.linux.org.uk>
Date: Tue, 23 Aug 2005 22:47:17 +0100
Subject: [PATCH] m32r smp.h gcc4 fixes

extern on physid_2_cpu[] does not belong in smp.h - the thing is static.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/smpboot.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index f9a0e723478d..640d592ea072 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -91,6 +91,7 @@ extern struct {
 
 /* which physical physical ID maps to which logical CPU number */
 static volatile int physid_2_cpu[NR_CPUS];
+#define physid_to_cpu(physid)	physid_2_cpu[physid]
 
 /* which logical CPU number maps to which physical ID */
 volatile int cpu_2_physid[NR_CPUS];
-- 
cgit v1.2.2


From c51d9943b11441fd1ea42c7e70cfb5eed33fe97b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@www.linux.org.uk>
Date: Tue, 23 Aug 2005 22:47:22 +0100
Subject: [PATCH] m32r icu_data gcc4 fixes

either icu_data declaration for SMP case should be taken out of m32102.h,
or its declarations for m32700ut and opsput should not be static for SMP.
Patch does the latter - judging by comments in m32102.h it is intended to
be non-static.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/setup_m32700ut.c | 4 +++-
 arch/m32r/kernel/setup_opsput.c   | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/setup_m32700ut.c b/arch/m32r/kernel/setup_m32700ut.c
index a146b24a556b..708634b685e4 100644
--- a/arch/m32r/kernel/setup_m32700ut.c
+++ b/arch/m32r/kernel/setup_m32700ut.c
@@ -30,9 +30,11 @@
 typedef struct {
 	unsigned long icucr;  /* ICU Control Register */
 } icu_data_t;
+static icu_data_t icu_data[M32700UT_NUM_CPU_IRQ];
+#else
+icu_data_t icu_data[M32700UT_NUM_CPU_IRQ];
 #endif /* CONFIG_SMP */
 
-static icu_data_t icu_data[M32700UT_NUM_CPU_IRQ];
 
 static void disable_m32700ut_irq(unsigned int irq)
 {
diff --git a/arch/m32r/kernel/setup_opsput.c b/arch/m32r/kernel/setup_opsput.c
index f0301f58bcce..d7b7ec6d30f8 100644
--- a/arch/m32r/kernel/setup_opsput.c
+++ b/arch/m32r/kernel/setup_opsput.c
@@ -31,9 +31,11 @@
 typedef struct {
 	unsigned long icucr;  /* ICU Control Register */
 } icu_data_t;
+static icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ];
+#else
+icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ];
 #endif /* CONFIG_SMP */
 
-static icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ];
 
 static void disable_opsput_irq(unsigned int irq)
 {
-- 
cgit v1.2.2


From 69be8f189653cd81aae5a74e26615b12871bb72e Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 29 Aug 2005 11:44:09 -0400
Subject: [PATCH] convert signal handling of NODEFER to act like other Unix
 boxes.

It has been reported that the way Linux handles NODEFER for signals is
not consistent with the way other Unix boxes handle it.  I've written a
program to test the behavior of how this flag affects signals and had
several reports from people who ran this on various Unix boxes,
confirming that Linux seems to be unique on the way this is handled.

The way NODEFER affects signals on other Unix boxes is as follows:

1) If NODEFER is set, other signals in sa_mask are still blocked.

2) If NODEFER is set and the signal is in sa_mask, then the signal is
still blocked. (Note: this is the behavior of all tested but Linux _and_
NetBSD 2.0 *).

The way NODEFER affects signals on Linux:

1) If NODEFER is set, other signals are _not_ blocked regardless of
sa_mask (Even NetBSD doesn't do this).

2) If NODEFER is set and the signal is in sa_mask, then the signal being
handled is not blocked.

The patch converts signal handling in all current Linux architectures to
the way most Unix boxes work.

Unix boxes that were tested:  DU4, AIX 5.2, Irix 6.5, NetBSD 2.0, SFU
3.5 on WinXP, AIX 5.3, Mac OSX, and of course Linux 2.6.13-rcX.

* NetBSD was the only other Unix to behave like Linux on point #2. The
main concern was brought up by point #1 which even NetBSD isn't like
Linux.  So with this patch, we leave NetBSD as the lonely one that
behaves differently here with #2.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/m32r/kernel/signal.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

(limited to 'arch/m32r/kernel')

diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 5aef7e406ef5..71763f7a1d19 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -341,13 +341,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
 	/* Set up the stack frame */
 	setup_rt_frame(sig, ka, info, oldset, regs);
 
-	if (!(ka->sa.sa_flags & SA_NODEFER)) {
-		spin_lock_irq(&current->sighand->siglock);
-		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+	spin_lock_irq(&current->sighand->siglock);
+	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+	if (!(ka->sa.sa_flags & SA_NODEFER))
 		sigaddset(&current->blocked,sig);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
-	}
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
 }
 
 /*
-- 
cgit v1.2.2