Merge master.kernel.org:/home/davem/BK/sparc-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

arch/sparc/config.in

@@ -59,6 +59,9 @@ endmenu
 mainmenu_option next_comment
 comment 'Console drivers'
 bool 'PROM console' CONFIG_PROM_CONSOLE
+if [ "$CONFIG_PROM_CONSOLE" != "y" ]; then
+   define_bool CONFIG_DUMMY_CONSOLE y
+fi
 source drivers/video/Config.in
 endmenu
 
@@ -214,6 +217,8 @@ if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then
 fi
 endmenu
 
+source drivers/input/Config.in
+
 source fs/Config.in
 
 if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then

arch/sparc/kernel/Makefile

@@ -13,7 +13,7 @@ export-objs := sparc_ksyms.o
 IRQ_OBJS := irq.o sun4m_irq.o sun4c_irq.o sun4d_irq.o
 obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o ${IRQ_OBJS} \
 	    process.o signal.o ioport.o setup.o idprom.o \
-	    sys_sparc.o sunos_asm.o sparc-stub.o systbls.o \
+	    sys_sparc.o sunos_asm.o systbls.o \
 	    time.o windows.o cpu.o devices.o sclow.o \
 	    tadpole.o tick14.o ptrace.o sys_solaris.o \
 	    unaligned.o muldiv.o pcic.o semaphore.o sparc_ksyms.o

arch/sparc/kernel/check_asm.sh

@@ -11,8 +11,7 @@ case $1 in
     echo "	sizeof(struct $2_struct)," >> $4
   ;;
   -ints)
-    sed -n -e '/check_asm_data:/,/\.size/p' <$2 | sed -e 's/check_asm_data://' -e 's/\.size.*//' -e 's/\.ident.*//' -e 's/\.long[ 	]\([0-9]*\)/\1,/' >>$3
-  ;;
+    sed -n -e '/check_asm_data:/,/\.size/p' <$2 | sed -e 's/check_asm_data://' -e 's/\.size.*//' -e 's/\.ident.*//' -e 's/\.global.*//' -e 's/\.long[ 	]\([0-9]*\)/\1,/' >>$3  ;;
   *)
     exit 1
   ;;

arch/sparc/kernel/ebus.c

@@ -24,8 +24,6 @@
 
 struct linux_ebus *ebus_chain = 0;
 
-extern void rs_init(void);
-
 /* We are together with pcic.c under CONFIG_PCI. */
 extern unsigned int pcic_pin_to_irq(unsigned int, char *name);
 
@@ -361,6 +359,4 @@ void __init ebus_init(void)
 		ebus->next = 0;
 		++num_ebus;
 	}
-
-	rs_init();
 }

arch/sparc/kernel/entry.S

@@ -53,6 +53,7 @@ in_trap_handler:
 	.text
 	.align	4
 
+#if 0 /* kgdb is dropped from 2.5.33 */
 ! This function is called when any SPARC trap (except window overflow or
 ! underflow) occurs.  It makes sure that the invalid register window is still
 ! available before jumping into C code.  It will also restore the world if you
@@ -119,7 +120,7 @@ C_LABEL(trap_low):
 	STORE_PT_PRIV(sp, l0, l1, l2)
 
 	RESTORE_ALL
-
+#endif
 
 #ifdef CONFIG_BLK_DEV_FD
 	.text

arch/sparc/kernel/init_task.c

@@ -7,7 +7,7 @@
 
 static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 struct mm_struct init_mm = INIT_MM(init_mm);
 struct task_struct init_task = INIT_TASK(init_task);
 

arch/sparc/kernel/pcic.c

-/* $Id: pcic.c,v 1.23 2002/01/23 14:33:55 davem Exp $
- * pcic.c: Sparc/PCI controller support
+/*
+ * pcic.c: MicroSPARC-IIep PCI controller support
  *
  * Copyright (C) 1998 V. Roganov and G. Raiko
  *
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/jiffies.h>
 
 #include <asm/ebus.h>
 #include <asm/sbus.h> /* for sanity check... */
@@ -193,48 +194,26 @@ static void pci_do_settimeofday(struct timeval *tv);
 
 #define CONFIG_CMD(bus, device_fn, where) (0x80000000 | (((unsigned int)bus) << 16) | (((unsigned int)device_fn) << 8) | (where & ~3))
 
-static int pcic_read_config(struct pci_bus *bus, unsigned int devfn,
-			    int where, int size, u32 *value)
+static int pcic_read_config_dword(unsigned int busno, unsigned int devfn,
+    int where, u32 *value)
 {
-	unsigned int v;
-	unsigned char busnum = bus->number;
 	struct linux_pcic *pcic;
 	unsigned long flags;
-	/* unsigned char where; */
 
-	switch (size) {
-	case 1:
-		pcic_read_config(bus, devfn, where&~3, 4, &v);
-		*value = 0xff & (v >> (8*(where & 3)));
-		return PCIBIOS_SUCCESSFUL;
-		break;
-
-	case 2:
-		if (where&1) return PCIBIOS_BAD_REGISTER_NUMBER;
-
-		pcic_read_config(bus, devfn, where&~3, 4, &v);
-		*value = 0xffff & (v >> (8*(where & 3)));
-		return PCIBIOS_SUCCESSFUL;
-		break;
-	}
-
-	/* size == 4, i.e. dword */
-	if (where&3) return PCIBIOS_BAD_REGISTER_NUMBER;
-	if (busnum != 0) return PCIBIOS_DEVICE_NOT_FOUND;
 	pcic = &pcic0;
 
-	save_and_cli(flags);
+	local_irq_save(flags);
 #if 0 /* does not fail here */
 	pcic_speculative = 1;
 	pcic_trapped = 0;
 #endif
-	writel(CONFIG_CMD(busnum,devfn,where), pcic->pcic_config_space_addr);
+	writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
 #if 0 /* does not fail here */
 	nop();
 	if (pcic_trapped) {
-		restore_flags(flags);
+		local_irq_restore(flags);
 		*value = ~0;
-		return PCIBIOS_SUCCESSFUL;
+		return 0;
 	}
 #endif
 	pcic_speculative = 2;
@@ -243,50 +222,77 @@ static int pcic_read_config(struct pci_bus *bus, unsigned int devfn,
 	nop();
 	if (pcic_trapped) {
 		pcic_speculative = 0;
-		restore_flags(flags);
+		local_irq_restore(flags);
 		*value = ~0;
-		return PCIBIOS_SUCCESSFUL;
+		return 0;
 	}
 	pcic_speculative = 0;
-	restore_flags(flags);
-	return PCIBIOS_SUCCESSFUL;
+	local_irq_restore(flags);
+	return 0;
 }
 
-static int pcic_write_config(struct pci_bus *bus, unsigned int devfn,
-			     int where, int size, u32 value)
+static int pcic_read_config(struct pci_bus *bus, unsigned int devfn,
+   int where, int size, u32 *val)
 {
 	unsigned int v;
-	unsigned char busnum = bus->number;
-	struct linux_pcic *pcic;
-	unsigned long flags;
 
+	if (bus->number != 0) return -EINVAL;
 	switch (size) {
 	case 1:
-		pcic_read_config(bus, devfn, where&~3, 4, &v);
-	        v = (v & ~(0xff << (8*(where&3)))) |
-	            ((0xff&(unsigned)value) << (8*(where&3)));
-		return pcic_write_config(bus, devfn, where&~3, 4, v);
-		break;
-
+		pcic_read_config_dword(bus->number, devfn, where&~3, &v);
+		*val = 0xff & (v >> (8*(where & 3)));
+		return 0;
 	case 2:
-		if (where&1) return PCIBIOS_BAD_REGISTER_NUMBER;
-		pcic_read_config(bus, devfn, where&~3, 4, &v);
-		v = (v & ~(0xffff << (8*(where&3)))) |
-		    ((0xffff&(unsigned)value) << (8*(where&3)));
-		return pcic_write_config(bus, devfn, where&~3, 4, v);
-		break;
+		if (where&1) return -EINVAL;
+		pcic_read_config_dword(bus->number, devfn, where&~3, &v);
+		*val = 0xffff & (v >> (8*(where & 3)));
+		return 0;
+	case 4:
+		if (where&3) return -EINVAL;
+		pcic_read_config_dword(bus->number, devfn, where&~3, val);
+		return 0;
 	}
+	return -EINVAL;
+}
+
+static int pcic_write_config_dword(unsigned int busno, unsigned int devfn,
+    int where, u32 value)
+{
+	struct linux_pcic *pcic;
+	unsigned long flags;
 
-	/* size == 4, i.e. dword */
-	if (where&3) return PCIBIOS_BAD_REGISTER_NUMBER;
-	if (busnum != 0) return PCIBIOS_DEVICE_NOT_FOUND;
 	pcic = &pcic0;
 
-	save_and_cli(flags);
-	writel(CONFIG_CMD(busnum,devfn,where), pcic->pcic_config_space_addr);
+	local_irq_save(flags);
+	writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
 	writel(value, pcic->pcic_config_space_data + (where&4));
-	restore_flags(flags);
-	return PCIBIOS_SUCCESSFUL;
+	local_irq_restore(flags);
+	return 0;
+}
+
+static int pcic_write_config(struct pci_bus *bus, unsigned int devfn,
+   int where, int size, u32 val)
+{
+	unsigned int v;
+
+	if (bus->number != 0) return -EINVAL;
+	switch (size) {
+	case 1:
+		pcic_read_config_dword(bus->number, devfn, where&~3, &v);
+		v = (v & ~(0xff << (8*(where&3)))) |
+		    ((0xff&val) << (8*(where&3)));
+		return pcic_write_config_dword(bus->number, devfn, where&~3, v);
+	case 2:
+		if (where&1) return -EINVAL;
+		pcic_read_config_dword(bus->number, devfn, where&~3, &v);
+		v = (v & ~(0xffff << (8*(where&3)))) |
+		    ((0xffff&val) << (8*(where&3)));
+		return pcic_write_config_dword(bus->number, devfn, where&~3, v);
+	case 4:
+		if (where&3) return -EINVAL;
+		return pcic_write_config_dword(bus->number, devfn, where, val);
+	}
+	return -EINVAL;
 }
 
 static struct pci_ops pcic_ops = {
@@ -420,7 +426,7 @@ static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic)
 /*
  * Main entry point from the PCI subsystem.
  */
-static int __init pcibios_init(void)
+static int __init pcic_init(void)
 {
 	struct linux_pcic *pcic;
 
@@ -623,7 +629,7 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
 {
 	struct list_head *walk;
 	int i, has_io, has_mem;
-	unsigned short cmd;
+	unsigned int cmd;
 	struct linux_pcic *pcic;
 	/* struct linux_pbm_info* pbm = &pcic->pbm; */
 	int node;
@@ -663,19 +669,21 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
 			} else if (f & IORESOURCE_MEM)
 				has_mem = 1;
 		}
-		pcic_read_config_word(dev, PCI_COMMAND, &cmd);
+		pcic_read_config(dev->bus, dev->devfn, PCI_COMMAND, 2, &cmd);
 		if (has_io && !(cmd & PCI_COMMAND_IO)) {
 			printk("PCIC: Enabling I/O for device %02x:%02x\n",
 				dev->bus->number, dev->devfn);
 			cmd |= PCI_COMMAND_IO;
-			pcic_write_config_word(dev, PCI_COMMAND, cmd);
+			pcic_write_config(dev->bus, dev->devfn,
+			    PCI_COMMAND, 2, cmd);
 		}
 		if (has_mem && !(cmd & PCI_COMMAND_MEMORY)) {
 			printk("PCIC: Enabling memory for device %02x:%02x\n",
 				dev->bus->number, dev->devfn);
 			cmd |= PCI_COMMAND_MEMORY;
-			pcic_write_config_word(dev, PCI_COMMAND, cmd);
-		}    
+			pcic_write_config(dev->bus, dev->devfn,
+			    PCI_COMMAND, 2, cmd);
+		}
 
 		node = pdev_to_pnode(&pcic->pbm, dev);
 		if(node == 0)
@@ -785,46 +793,54 @@ static __inline__ unsigned long do_gettimeoffset(void)
 	return offset + count;
 }
 
-extern volatile unsigned long wall_jiffies;
+extern unsigned long wall_jiffies;
+extern rwlock_t xtime_lock;
 
 static void pci_do_gettimeofday(struct timeval *tv)
 {
- 	unsigned long flags;
-
-	save_and_cli(flags);
-	*tv = xtime;
-	tv->tv_usec += do_gettimeoffset();
+	unsigned long flags;
+	unsigned long usec, sec;
 
-	/*
-	 * xtime is atomically updated in timer_bh. The difference
-	 * between jiffies and wall_jiffies is nonzero if the timer
-	 * bottom half hasnt executed yet.
-	 */
-	if ((jiffies - wall_jiffies) != 0)
-		tv->tv_usec += USECS_PER_JIFFY;
+	read_lock_irqsave(&xtime_lock, flags);
+	usec = do_gettimeoffset();
+	{
+		unsigned long lost = jiffies - wall_jiffies;
+		if (lost)
+			usec += lost * (1000000 / HZ);
+	}
+	sec = xtime.tv_sec;
+	usec += (xtime.tv_nsec / 1000);
+	read_unlock_irqrestore(&xtime_lock, flags);
 
-	restore_flags(flags);
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
 
-	if (tv->tv_usec >= 1000000) {
-		tv->tv_usec -= 1000000;
-		tv->tv_sec++;
-	}       
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
 }
 
 static void pci_do_settimeofday(struct timeval *tv)
 {
-	cli();
+	/*
+	 * This is revolting. We need to set "xtime" correctly. However, the
+	 * value in this location is the value at the most recent update of
+	 * wall time.  Discover what correction gettimeofday() would have
+	 * made, and then undo it!
+	 */
 	tv->tv_usec -= do_gettimeoffset();
-	if(tv->tv_usec < 0) {
+	tv->tv_usec -= (jiffies - wall_jiffies) * (1000000 / HZ);
+	while (tv->tv_usec < 0) {
 		tv->tv_usec += 1000000;
 		tv->tv_sec--;
 	}
-	xtime = *tv;
+	xtime.tv_sec = tv->tv_sec;
+	xtime.tv_nsec = (tv->tv_usec * 1000);
 	time_adjust = 0;		/* stop active adjtime() */
 	time_status |= STA_UNSYNC;
 	time_maxerror = NTP_PHASE_LIMIT;
 	time_esterror = NTP_PHASE_LIMIT;
-	sti();
 }
 
 #if 0
@@ -853,7 +869,7 @@ void pcibios_align_resource(void *data, struct resource *res,
 {
 }
 
-int pcibios_enable_device(struct pci_dev *pdev)
+int pcibios_enable_device(struct pci_dev *pdev, int mask)
 {
 	return 0;
 }
@@ -898,9 +914,9 @@ static void pcic_disable_irq(unsigned int irq_nr)
 	unsigned long mask, flags;
 
 	mask = get_irqmask(irq_nr);
-	save_and_cli(flags);
+	local_irq_save(flags);
 	writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_SET);
-	restore_flags(flags);
+	local_irq_restore(flags);
 }
 
 static void pcic_enable_irq(unsigned int irq_nr)
@@ -908,9 +924,9 @@ static void pcic_enable_irq(unsigned int irq_nr)
 	unsigned long mask, flags;
 
 	mask = get_irqmask(irq_nr);
-	save_and_cli(flags);
+	local_irq_save(flags);
 	writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_CLEAR);
-	restore_flags(flags);
+	local_irq_restore(flags);
 }
 
 static void pcic_clear_profile_irq(int cpu)
@@ -1021,4 +1037,4 @@ void insl(unsigned long addr, void *dst, unsigned long count) {
 
 #endif
 
-subsys_initcall(pcibios_init);
+subsys_initcall(pcic_init);

arch/sparc/kernel/process.c

@@ -94,7 +94,7 @@ int cpu_idle(void)
 			extern unsigned long sun4c_kernel_faults;
 			extern void sun4c_grow_kernel_ring(void);
 
-			save_and_cli(flags);
+			local_irq_save(flags);
 			now = jiffies;
 			count -= (now - last_jiffies);
 			last_jiffies = now;
@@ -110,7 +110,7 @@ int cpu_idle(void)
 					sun4c_grow_kernel_ring();
 				}
 			}
-			restore_flags(flags);
+			local_irq_restore(flags);
 		}
 
 		while((!need_resched()) && pm_idle) {
@@ -144,8 +144,6 @@ int cpu_idle(void)
 
 extern char reboot_command [];
 
-extern int serial_console;
-
 extern void (*prom_palette)(int);
 
 void machine_halt(void)

arch/sparc/kernel/setup.c

@@ -34,7 +34,6 @@
 #include <asm/segment.h>
 #include <asm/system.h>
 #include <asm/io.h>
-#include <asm/kgdb.h>
 #include <asm/processor.h>
 #include <asm/oplib.h>
 #include <asm/page.h>
@@ -67,8 +66,6 @@ struct screen_info screen_info = {
  */
 
 extern unsigned long trapbase;
-extern int serial_console;
-extern void breakpoint(void);
 void (*prom_palette)(int);
 asmlinkage void sys_sync(void);	/* it's really int */
 
@@ -105,28 +102,15 @@ void prom_sync_me(void)
 	return;
 }
 
-extern void rs_kgdb_hook(int tty_num); /* sparc/serial.c */
-
 unsigned int boot_flags __initdata = 0;
 #define BOOTME_DEBUG  0x1
 #define BOOTME_SINGLE 0x2
-#define BOOTME_KGDBA  0x4
-#define BOOTME_KGDBB  0x8
-#define BOOTME_KGDB   0xc
 
 static int console_fb __initdata = 0;
 
 /* Exported for mm/init.c:paging_init. */
 unsigned long cmdline_memory_size __initdata = 0;
 
-void kernel_enter_debugger(void)
-{
-	if (boot_flags & BOOTME_KGDB) {
-		printk("KGDB: Entered\n");
-		breakpoint();
-	}
-}
-
 static void
 prom_console_write(struct console *con, const char *s, unsigned n)
 {
@@ -142,11 +126,6 @@ static struct console prom_debug_console = {
 
 int obp_system_intr(void)
 {
-	if (boot_flags & BOOTME_KGDB) {
-		printk("KGDB: system interrupted\n");
-		breakpoint();
-		return 1;
-	}
 	if (boot_flags & BOOTME_DEBUG) {
 		printk("OBP: system interrupted\n");
 		prom_halt();
@@ -196,24 +175,6 @@ static void __init boot_flags_init(char *commands)
 			commands++;
 			while (*commands && *commands != ' ')
 				process_switch(*commands++);
-		} else if (strlen(commands) >= 9
-			   && !strncmp(commands, "kgdb=tty", 8)) {
-			switch (commands[8]) {
-#ifdef CONFIG_SUN_SERIAL
-			case 'a':
-				boot_flags |= BOOTME_KGDBA;
-				prom_printf("KGDB: Using serial line /dev/ttya.\n");
-				break;
-			case 'b':
-				boot_flags |= BOOTME_KGDBB;
-				prom_printf("KGDB: Using serial line /dev/ttyb.\n");
-				break;
-#endif
-			default:
-				printk("KGDB: Unknown tty line.\n");
-				break;
-			}
-			commands += 9;
 		} else {
 			if (!strncmp(commands, "console=", 8)) {
 				commands += 8;
@@ -378,65 +339,48 @@ void __init setup_arch(char **cmdline_p)
 
 	prom_setsync(prom_sync_me);
 
-	{
-#if !CONFIG_SUN_SERIAL
-		serial_console = 0;
+#ifndef CONFIG_SERIAL_CONSOLE	/* Not CONFIG_SERIAL_SUNCORE: to be gone. */
+	serial_console = 0;
 #else
-		switch (console_fb) {
-		case 0: /* Let get our io devices from prom */
-			{
-				int idev = prom_query_input_device();
-				int odev = prom_query_output_device();
-				if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
-					serial_console = 0;
-				} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
-					serial_console = 1;
-				} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
-					serial_console = 2;
-				} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OTTYA) {
-					prom_printf("MrCoffee ttya\n");
-					serial_console = 1;
-				} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OSCREEN) {
-					serial_console = 0;
-					prom_printf("MrCoffee keyboard\n");
-				} else {
-					prom_printf("Inconsistent or unknown console\n");
-					prom_printf("You cannot mix serial and non serial input/output devices\n");
-					prom_halt();
-				}
+	switch (console_fb) {
+	case 0: /* Let get our io devices from prom */
+		{
+			int idev = prom_query_input_device();
+			int odev = prom_query_output_device();
+			if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
+				serial_console = 0;
+			} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
+				serial_console = 1;
+			} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
+				serial_console = 2;
+			} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OTTYA) {
+				prom_printf("MrCoffee ttya\n");
+				serial_console = 1;
+			} else if (idev == PROMDEV_I_UNK && odev == PROMDEV_OSCREEN) {
+				serial_console = 0;
+				prom_printf("MrCoffee keyboard\n");
+			} else {
+				prom_printf("Inconsistent or unknown console\n");
+				prom_printf("You cannot mix serial and non serial input/output devices\n");
+				prom_halt();
 			}
-			break;
-		case 1: serial_console = 0; break; /* Force one of the framebuffers as console */
-		case 2: serial_console = 1; break; /* Force ttya as console */
-		case 3: serial_console = 2; break; /* Force ttyb as console */
 		}
-#endif
-	}
-
-	if ((boot_flags & BOOTME_KGDBA)) {
-		rs_kgdb_hook(0);
-	}
-	if ((boot_flags & BOOTME_KGDBB)) {
-		rs_kgdb_hook(1);
+		break;
+	case 1: serial_console = 0; break; /* Force one of the framebuffers as console */
+	case 2: serial_console = 1; break; /* Force ttya as console */
+	case 3: serial_console = 2; break; /* Force ttyb as console */
 	}
+#endif
 
 	if((boot_flags&BOOTME_DEBUG) && (linux_dbvec!=0) && 
 	   ((*(short *)linux_dbvec) != -1)) {
 		printk("Booted under KADB. Syncing trap table.\n");
 		(*(linux_dbvec->teach_debugger))();
 	}
-	if((boot_flags & BOOTME_KGDB)) {
-		set_debug_traps();
-		prom_printf ("Breakpoint!\n");
-		breakpoint();
-	}
 
 	init_mm.context = (unsigned long) NO_CONTEXT;
 	init_task.thread.kregs = &fake_swapper_regs;
 
-	if (serial_console)
-		conswitchp = NULL;
-
 	paging_init();
 }
 
@@ -514,3 +458,19 @@ struct seq_operations cpuinfo_op = {
 	.stop =	c_stop,
 	.show =	show_cpuinfo,
 };
+
+extern int stop_a_enabled;
+
+void sun_do_break(void)
+{
+	if (!stop_a_enabled)
+		return;
+
+	printk("\n");
+	flush_user_windows();
+
+	prom_cmdline();
+}
+
+int serial_console;
+int stop_a_enabled = 1;

arch/sparc/kernel/signal.c

@@ -38,11 +38,6 @@ extern void fpload(unsigned long *fpregs, unsigned long *fsr);
 asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
 			 unsigned long orig_o0, int restart_syscall);
 
-/* This turned off for production... */
-/* #define DEBUG_SIGNALS 1 */
-/* #define DEBUG_SIGNALS_TRACE 1 */
-/* #define DEBUG_SIGNALS_MAPS 1 */
-
 /* Signal frames: the original one (compatible with SunOS):
  *
  * Set up a signal frame... Make the stack look the way SunOS
@@ -470,12 +465,6 @@ setup_frame(struct sigaction *sa, struct pt_regs *regs, int signr, sigset_t *old
 	synchronize_user_stack();
 	sframep = (struct signal_sframe *)get_sigframe(sa, regs, SF_ALIGNEDSZ);
 	if (invalid_frame_pointer (sframep, sizeof(*sframep))){
-#ifdef DEBUG_SIGNALS /* fills up the console logs during crashme runs, yuck... */
-		printk("%s [%d]: User has trashed signal stack\n",
-		       current->comm, current->pid);
-		printk("Sigstack ptr %p handler at pc<%08lx> for sig<%d>\n",
-		       sframep, pc, signr);
-#endif
 		/* Don't change signal code and address, so that
 		 * post mortem debuggers can have a look.
 		 */
@@ -635,13 +624,8 @@ new_setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
 	if (invalid_frame_pointer (sf, sigframe_size))
 		goto sigill_and_return;
 
-	if (current->thread.w_saved != 0) {
-#ifdef DEBUG_SIGNALS 
-		printk ("%s [%d]: Invalid user stack frame for "
-			"signal delivery.\n", current->comm, current->pid);
-#endif
+	if (current->thread.w_saved != 0)
 		goto sigill_and_return;
-	}
 
 	/* 2. Save the current process state */
 	err = __copy_to_user(&sf->info.si_regs, regs, sizeof (struct pt_regs));
@@ -795,12 +779,8 @@ setup_svr4_frame(struct sigaction *sa, unsigned long pc, unsigned long npc,
 	synchronize_user_stack();
 	sfp = (svr4_signal_frame_t *) get_sigframe(sa, regs, SVR4_SF_ALIGNED + REGWIN_SZ);
 
-	if (invalid_frame_pointer (sfp, sizeof (*sfp))){
-#ifdef DEBUG_SIGNALS
-		printk ("Invalid stack frame\n");
-#endif
+	if (invalid_frame_pointer (sfp, sizeof (*sfp)))
 		goto sigill_and_return;
-	}
 
 	/* Start with a clean frame pointer and fill it */
 	err = __clear_user(sfp, sizeof (*sfp));
@@ -883,9 +863,6 @@ setup_svr4_frame(struct sigaction *sa, unsigned long pc, unsigned long npc,
 	regs->pc = (unsigned long) sa->sa_handler;
 	regs->npc = (regs->pc + 4);
 
-#ifdef DEBUG_SIGNALS
-	printk ("Solaris-frame: %x %x\n", (int) regs->pc, (int) regs->npc);
-#endif
 	/* Arguments passed to signal handler */
 	if (regs->u_regs [14]){
 		struct reg_window *rw = (struct reg_window *) regs->u_regs [14];
@@ -1090,61 +1067,6 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
 	}
 }
 
-#ifdef DEBUG_SIGNALS_MAPS
-
-#define MAPS_LINE_FORMAT	  "%08lx-%08lx %s %08lx %02x:%02x %lu "
-
-static inline void read_maps (void)
-{
-	struct vm_area_struct * map, * next;
-	char * buffer;
-	ssize_t i;
-
-	buffer = (char*)__get_free_page(GFP_KERNEL);
-	if (!buffer)
-		return;
-
-	for (map = current->mm->mmap ; map ; map = next ) {
-		/* produce the next line */
-		char *line;
-		char str[5], *cp = str;
-		int flags;
-		dev_t dev;
-		unsigned long ino;
-
-		/*
-		 * Get the next vma now (but it won't be used if we sleep).
-		 */
-		next = map->vm_next;
-		flags = map->vm_flags;
-
-		*cp++ = flags & VM_READ ? 'r' : '-';
-		*cp++ = flags & VM_WRITE ? 'w' : '-';
-		*cp++ = flags & VM_EXEC ? 'x' : '-';
-		*cp++ = flags & VM_MAYSHARE ? 's' : 'p';
-		*cp++ = 0;
-
-		dev = 0;
-		ino = 0;
-		if (map->vm_file != NULL) {
-			dev = map->vm_file->f_dentry->d_inode->i_dev;
-			ino = map->vm_file->f_dentry->d_inode->i_ino;
-			line = d_path(map->vm_file->f_dentry,
-				      map->vm_file->f_vfsmnt,
-				      buffer, PAGE_SIZE);
-		}
-		printk(MAPS_LINE_FORMAT, map->vm_start, map->vm_end, str, map->vm_pgoff << PAGE_SHIFT,
-			      MAJOR(dev), MINOR(dev), ino);
-		if (map->vm_file != NULL)
-			printk("%s\n", line);
-		else
-			printk("\n");
-	}
-	free_page((unsigned long)buffer);
-	return;
-}
-#endif
-
 /* Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
@@ -1152,7 +1074,6 @@ static inline void read_maps (void)
 asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
 			 unsigned long orig_i0, int restart_syscall)
 {
-	unsigned long signr;
 	struct k_sigaction *ka;
 	siginfo_t info;
 
@@ -1171,9 +1092,21 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
 		oldset = &current->blocked;
 
 	for (;;) {
-		spin_lock_irq(&current->sigmask_lock);
-		signr = dequeue_signal(&current->blocked, &info);
-		spin_unlock_irq(&current->sigmask_lock);
+		sigset_t *mask = &current->blocked;
+		unsigned long signr = 0;
+
+		local_irq_disable();
+		if (current->sig->shared_pending.head) {
+			spin_lock(&current->sig->siglock);
+			signr = dequeue_signal(&current->sig->shared_pending, mask, &info);
+			spin_unlock(&current->sig->siglock);
+		}
+		if (!signr) {
+			spin_lock(&current->sigmask_lock);
+			signr = dequeue_signal(&current->pending, mask, &info);
+			spin_unlock(&current->sigmask_lock);
+		}
+		local_irq_enable();
 
 		if (!signr)
 			break;
@@ -1193,7 +1126,7 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
 				restart_syscall = 0;
 			}
 			current->exit_code = signr;
-			current->state = TASK_STOPPED;
+			set_current_state(TASK_STOPPED);
 
 			/* This happens to be SMP safe so no need to
 			 * grab master kernel lock even in this case.
@@ -1254,52 +1187,27 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
 				if (is_orphaned_pgrp(current->pgrp))
 					continue;
 
-			case SIGSTOP:
-				if (current->ptrace & PT_PTRACED)
-					continue;
-				current->state = TASK_STOPPED;
+			case SIGSTOP: {
+				struct signal_struct *sig;
+				set_current_state(TASK_STOPPED);
 				current->exit_code = signr;
-
-				/* notify_parent() is SMP safe */
-				if(!(current->parent->sig->action[SIGCHLD-1].sa.sa_flags &
-				     SA_NOCLDSTOP))
+				sig = current->parent->sig;
+				if (sig && !(sig->action[SIGCHLD-1].sa.sa_flags &
+				      SA_NOCLDSTOP))
 					notify_parent(current, SIGCHLD);
 				schedule();
 				continue;
+			}
 
 			case SIGQUIT: case SIGILL: case SIGTRAP:
 			case SIGABRT: case SIGFPE: case SIGSEGV:
 			case SIGBUS: case SIGSYS: case SIGXCPU: case SIGXFSZ:
 				if (do_coredump(signr, regs))
 					exit_code |= 0x80;
-#ifdef DEBUG_SIGNALS
-				/* Very useful to debug dynamic linker problems */
-				printk ("Sig %ld going for %s[%d]...\n", signr, current->comm, current->pid);
-				show_regs (regs);
-#ifdef DEBUG_SIGNALS_TRACE
-				{
-					struct reg_window *rw = (struct reg_window *)regs->u_regs[UREG_FP];
-					unsigned int ins[8];
-
-					while (rw &&
-					       !(((unsigned long) rw) & 0x3)) {
-						copy_from_user(ins, &rw->ins[0], sizeof(ins));
-						printk("Caller[%08x](%08x,%08x,%08x,%08x,%08x,%08x)\n", ins[7], ins[0], ins[1], ins[2], ins[3], ins[4], ins[5]);
-						rw = (struct reg_window *)(unsigned long)ins[6];
-					}
-				}
-#endif
-#ifdef DEBUG_SIGNALS_MAPS
-				printk("Maps:\n");
-				read_maps();
-#endif
-#endif
-				/* fall through */
+				/* FALLTHRU */
+
 			default:
-				sigaddset(&current->pending.signal, signr);
-				recalc_sigpending();
-				current->flags |= PF_SIGNALED;
-				do_exit(exit_code);
+				sig_exit(signr, exit_code, &info);
 				/* NOT REACHED */
 			}
 		}

arch/sparc/kernel/sparc-stub.c

@@ -188,22 +188,16 @@ static inline void copy_ttentry(struct tt_entry *src, struct tt_entry *dest)
 /* Initialize the kgdb_savettable so that debugging can commence */
 static void eh_init(void)
 {
-	int i, flags;
+	int i;
 
-	save_and_cli(flags);
 	for(i=0; i < 256; i++)
 		copy_ttentry(&sparc_ttable[i], &kgdb_savettable[i]);
-	restore_flags(flags);
 }
 
 /* Install an exception handler for kgdb */
 static void exceptionHandler(int tnum, trapfunc_t trap_entry)
 {
 	unsigned long te_addr = (unsigned long) trap_entry;
-	int flags;
-
-	/* We are dorking with a live trap table, all irqs off */
-	save_and_cli(flags);
 
 	/* Make new vector */
 	sparc_ttable[tnum].inst_one =
@@ -212,8 +206,6 @@ static void exceptionHandler(int tnum, trapfunc_t trap_entry)
 	sparc_ttable[tnum].inst_two = SPARC_RD_PSR_L0;
 	sparc_ttable[tnum].inst_three = SPARC_NOP;
 	sparc_ttable[tnum].inst_four = SPARC_NOP;
-
-	restore_flags(flags);
 }
 
 /* Convert ch from a hex digit to an int */
@@ -406,7 +398,7 @@ set_debug_traps(void)
 	struct hard_trap_info *ht;
 	unsigned long flags;
 
-	save_and_cli(flags);
+	local_irq_save(flags);
 #if 0	
 /* Have to sort this out. This cannot be done after initialization. */
 	BTFIXUPSET_CALL(flush_cache_all, flush_cache_all_nop, BTFIXUPCALL_NOP);
@@ -438,7 +430,7 @@ set_debug_traps(void)
 #endif
 
 	initialized = 1; /* connect! */
-	restore_flags(flags);
+	local_irq_restore(flags);
 }
 
 /* Convert the SPARC hardware trap type code to a unix signal number. */

arch/sparc/kernel/systbls.S

@@ -55,7 +55,7 @@ sys_call_table:
 /*170*/	.long sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
 /*175*/	.long sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
 /*180*/	.long sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_sigpending, sys_query_module
-/*185*/	.long sys_setpgid, sys_fremovexattr, sys_tkill, sys_nis_syscall, sys_newuname
+/*185*/	.long sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
 /*190*/	.long sys_init_module, sys_personality, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
 /*195*/	.long sys_nis_syscall, sys_nis_syscall, sys_getppid, sparc_sigaction, sys_sgetmask
 /*200*/	.long sys_ssetmask, sys_sigsuspend, sys_newlstat, sys_uselib, old_readdir

arch/sparc/kernel/tadpole.c

@@ -56,6 +56,9 @@ static void clk_slow(void)
 			     "g2", "g3", "g4", "g5");
 }
 
+/*
+ * Tadpole is guaranteed to be UP, using local_irq_save.
+ */
 static void tsu_clockstop(void)
 {
 	unsigned int mcsr;
@@ -64,28 +67,28 @@ static void tsu_clockstop(void)
 	if (!clk_ctrl)
 		return;
 	if (!(clk_state & CLOCK_INIT_DONE)) {
-		save_and_cli(flags);
+		local_irq_save(flags);
 		clk_init();
 		clk_state |= CLOCK_INIT_DONE;       /* all done */
-		restore_flags(flags);
+		local_irq_restore(flags);
 		return;
 	}
 	if (!(clk_ctrl[2] & 1))
 		return;               /* no speed up yet */
 
-	save_and_cli(flags);
+	local_irq_save(flags);
 
 	/* if SCSI DMA in progress, don't slow clock */
 	mcsr = ldphys(MACIO_SCSI_CSR_ADDR);
 	if ((mcsr&MACIO_EN_DMA) != 0) {
-		restore_flags(flags);
+		local_irq_restore(flags);
 		return;
 	}
 	/* TODO... the minimum clock setting ought to increase the
 	 * memory refresh interval..
 	 */
 	clk_slow();
-	restore_flags(flags);
+	local_irq_restore(flags);
 }
 
 static void swift_clockstop(void)

arch/sparc/kernel/tick14.c

@@ -29,32 +29,30 @@ extern unsigned long lvl14_save[5];
 static unsigned long *linux_lvl14 = NULL;
 static unsigned long obp_lvl14[4];
  
+/*
+ * Call with timer IRQ closed.
+ * First time we do it with disable_irq, later prom code uses spin_lock_irq().
+ */
 void install_linux_ticker(void)
 {
-	unsigned long flags;
 
 	if (!linux_lvl14)
 		return;
-	save_and_cli(flags);
 	linux_lvl14[0] =  lvl14_save[0];
 	linux_lvl14[1] =  lvl14_save[1];
 	linux_lvl14[2] =  lvl14_save[2];
 	linux_lvl14[3] =  lvl14_save[3];
-	restore_flags(flags);
 }
 
 void install_obp_ticker(void)
 {
-	unsigned long flags;
-    
+
 	if (!linux_lvl14)
 		return;
-	save_and_cli(flags);
 	linux_lvl14[0] =  obp_lvl14[0];
 	linux_lvl14[1] =  obp_lvl14[1];
 	linux_lvl14[2] =  obp_lvl14[2];
 	linux_lvl14[3] =  obp_lvl14[3]; 
-	restore_flags(flags);
 }
 
 void claim_ticker14(void (*handler)(int, void *, struct pt_regs *),

arch/sparc/kernel/time.c

@@ -43,6 +43,8 @@
 
 extern rwlock_t xtime_lock;
 
+extern unsigned long wall_jiffies;
+
 u64 jiffies_64;
 
 enum sparc_clock_type sp_clock_typ;
@@ -114,6 +116,9 @@ __volatile__ unsigned int *master_l10_limit;
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
+
+#define TICK_SIZE (tick_nsec / 1000)
+
 void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 {
 	/* last time the cmos clock got updated */
@@ -142,8 +147,8 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 	/* Determine when to update the Mostek clock. */
 	if ((time_status & STA_UNSYNC) == 0 &&
 	    xtime.tv_sec > last_rtc_update + 660 &&
-	    xtime.tv_usec >= 500000 - ((unsigned) tick) / 2 &&
-	    xtime.tv_usec <= 500000 + ((unsigned) tick) / 2) {
+	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
+	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
 	  if (set_rtc_mmss(xtime.tv_sec) == 0)
 	    last_rtc_update = xtime.tv_sec;
 	  else
@@ -400,7 +405,7 @@ void __init sbus_time_init(void)
 	mon = MSTK_REG_MONTH(mregs);
 	year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
 	xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-	xtime.tv_usec = 0;
+	xtime.tv_nsec = 0;
 	mregs->creg &= ~MSTK_CREG_READ;
 	spin_unlock_irq(&mostek_lock);
 #ifdef CONFIG_SUN4
@@ -431,7 +436,7 @@ void __init sbus_time_init(void)
 		intersil_start(iregs);
 
 		xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-		xtime.tv_usec = 0;
+		xtime.tv_nsec = 0;
 		printk("%u/%u/%u %u:%u:%u\n",day,mon,year,hour,min,sec);
 	}
 #endif
@@ -467,48 +472,33 @@ extern __inline__ unsigned long do_gettimeoffset(void)
 	return offset + count;
 }
 
-/* This need not obtain the xtime_lock as it is coded in
- * an implicitly SMP safe way already.
+/* Ok, my cute asm atomicity trick doesn't work anymore.
+ * There are just too many variables that need to be protected
+ * now (both members of xtime, wall_jiffies, et al.)
  */
 void do_gettimeofday(struct timeval *tv)
 {
-	/* Load doubles must be used on xtime so that what we get
-	 * is guarenteed to be atomic, this is why we can run this
-	 * with interrupts on full blast.  Don't touch this... -DaveM
-	 */
-	__asm__ __volatile__(
-	"sethi	%hi(master_l10_counter), %o1\n\t"
-	"ld	[%o1 + %lo(master_l10_counter)], %g3\n\t"
-	"sethi	%hi(xtime), %g2\n"
-	"1:\n\t"
-	"ldd	[%g2 + %lo(xtime)], %o4\n\t"
-	"ld	[%g3], %o1\n\t"
-	"ldd	[%g2 + %lo(xtime)], %o2\n\t"
-	"xor	%o4, %o2, %o2\n\t"
-	"xor	%o5, %o3, %o3\n\t"
-	"orcc	%o2, %o3, %g0\n\t"
-	"bne	1b\n\t"
-	" cmp	%o1, 0\n\t"
-	"bge	1f\n\t"
-	" srl	%o1, 0xa, %o1\n\t"
-	"sethi	%hi(tick), %o3\n\t"
-	"ld	[%o3 + %lo(tick)], %o3\n\t"
-	"sethi	%hi(0x1fffff), %o2\n\t"
-	"or	%o2, %lo(0x1fffff), %o2\n\t"
-	"add	%o5, %o3, %o5\n\t"
-	"and	%o1, %o2, %o1\n"
-	"1:\n\t"
-	"add	%o5, %o1, %o5\n\t"
-	"sethi	%hi(1000000), %o2\n\t"
-	"or	%o2, %lo(1000000), %o2\n\t"
-	"cmp	%o5, %o2\n\t"
-	"bl,a	1f\n\t"
-	" st	%o4, [%o0 + 0x0]\n\t"
-	"add	%o4, 0x1, %o4\n\t"
-	"sub	%o5, %o2, %o5\n\t"
-	"st	%o4, [%o0 + 0x0]\n"
-	"1:\n\t"
-	"st	%o5, [%o0 + 0x4]\n");
+	unsigned long flags;
+	unsigned long usec, sec;
+
+	read_lock_irqsave(&xtime_lock, flags);
+	usec = do_gettimeoffset();
+	{
+		unsigned long lost = jiffies - wall_jiffies;
+		if (lost)
+			usec += lost * (1000000 / HZ);
+	}
+	sec = xtime.tv_sec;
+	usec += (xtime.tv_nsec / 1000);
+	read_unlock_irqrestore(&xtime_lock, flags);
+
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
+
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
 }
 
 void do_settimeofday(struct timeval *tv)
@@ -520,12 +510,20 @@ void do_settimeofday(struct timeval *tv)
 
 static void sbus_do_settimeofday(struct timeval *tv)
 {
+	/*
+	 * This is revolting. We need to set "xtime" correctly. However, the
+	 * value in this location is the value at the most recent update of
+	 * wall time.  Discover what correction gettimeofday() would have
+	 * made, and then undo it!
+	 */
 	tv->tv_usec -= do_gettimeoffset();
-	if(tv->tv_usec < 0) {
+	tv->tv_usec -= (jiffies - wall_jiffies) * (1000000 / HZ);
+	while (tv->tv_usec < 0) {
 		tv->tv_usec += 1000000;
 		tv->tv_sec--;
 	}
-	xtime = *tv;
+	xtime.tv_sec = tv->tv_sec;
+	xtime.tv_nsec = (tv->tv_usec * 1000);
 	time_adjust = 0;		/* stop active adjtime() */
 	time_status |= STA_UNSYNC;
 	time_maxerror = NTP_PHASE_LIMIT;

arch/sparc/kernel/unaligned.c

@@ -506,9 +506,18 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 			break;
 
 		case both:
+#if 0 /* unsupported */
 			do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
 				  (unsigned long *) addr,
 				  user_unaligned_trap_fault);
+#else
+			/*
+			 * This was supported in 2.4. However, we question
+			 * the value of SWAP instruction across word boundaries.
+			 */
+			printk("Unaligned SWAP unsupported.\n");
+			goto kill_user;
+#endif
 			break;
 
 		default:

arch/sparc/mm/srmmu.c

@@ -1212,7 +1212,6 @@ extern int linux_num_cpus;
 void (*poke_srmmu)(void) __initdata = NULL;
 
 extern unsigned long bootmem_init(unsigned long *pages_avail);
-extern void sun_serial_setup(void);
 
 void __init srmmu_paging_init(void)
 {
@@ -1281,13 +1280,6 @@ void __init srmmu_paging_init(void)
 	flush_cache_all();
 	flush_tlb_all();
 
-	/*
-	 * This does not logically belong here, but we need to
-	 * call it at the moment we are able to use the bootmem
-	 * allocator.
-	 */
-	sun_serial_setup();
-
 	sparc_context_init(num_contexts);
 
 	kmap_init();

arch/sparc/mm/sun4c.c

@@ -2001,7 +2001,6 @@ extern void sparc_context_init(int);
 extern unsigned long end;
 extern unsigned long bootmem_init(unsigned long *pages_avail);
 extern unsigned long last_valid_pfn;
-extern void sun_serial_setup(void);
 
 void __init sun4c_paging_init(void)
 {
@@ -2018,12 +2017,6 @@ void __init sun4c_paging_init(void)
 	last_valid_pfn = bootmem_init(&pages_avail);
 	end_pfn = last_valid_pfn;
 
-	/* This does not logically belong here, but we need to
-	 * call it at the moment we are able to use the bootmem
-	 * allocator.
-	 */
-	sun_serial_setup();
-
 	sun4c_probe_mmu();
 	invalid_segment = (num_segmaps - 1);
 	sun4c_init_mmu_entry_pool();

arch/sparc/prom/misc.c

@@ -12,6 +12,7 @@
 #include <asm/openprom.h>
 #include <asm/oplib.h>
 #include <asm/auxio.h>
+#include <asm/system.h>
 
 extern void restore_current(void);
 
@@ -47,7 +48,6 @@ prom_feval(char *fstring)
 
 /* We want to do this more nicely some day. */
 extern void (*prom_palette)(int);
-extern int serial_console;
 
 /* Drop into the prom, with the chance to continue with the 'go'
  * prom command.
@@ -55,20 +55,18 @@ extern int serial_console;
 void
 prom_cmdline(void)
 {
-	extern void kernel_enter_debugger(void);
 	extern void install_obp_ticker(void);
 	extern void install_linux_ticker(void);
 	unsigned long flags;
-    
-	kernel_enter_debugger();
+
 	if(!serial_console && prom_palette)
 		prom_palette (1);
-	install_obp_ticker();
 	spin_lock_irqsave(&prom_lock, flags);
+	install_obp_ticker();
 	(*(romvec->pv_abort))();
 	restore_current();
-	spin_unlock_irqrestore(&prom_lock, flags);
 	install_linux_ticker();
+	spin_unlock_irqrestore(&prom_lock, flags);
 #ifdef CONFIG_SUN_AUXIO
 	TURN_ON_LED;
 #endif

arch/sparc64/defconfig

@@ -204,6 +204,8 @@ CONFIG_BLK_DEV_IDE=y
 #
 # Please see Documentation/ide.txt for help/info on IDE drives
 #
+# CONFIG_BLK_DEV_HD_IDE is not set
+# CONFIG_BLK_DEV_HD is not set
 CONFIG_BLK_DEV_IDEDISK=y
 # CONFIG_IDEDISK_MULTI_MODE is not set
 # CONFIG_IDEDISK_STROKE is not set
@@ -218,7 +220,7 @@ CONFIG_BLK_DEV_IDEDISK=y
 # CONFIG_BLK_DEV_TIVO is not set
 # CONFIG_BLK_DEV_IDECS is not set
 CONFIG_BLK_DEV_IDECD=y
-# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDECD_BAILOUT is not set
 # CONFIG_BLK_DEV_IDEFLOPPY is not set
 # CONFIG_BLK_DEV_IDESCSI is not set
 # CONFIG_IDE_TASK_IOCTL is not set
@@ -229,8 +231,8 @@ CONFIG_BLK_DEV_IDECD=y
 # CONFIG_BLK_DEV_CMD640 is not set
 # CONFIG_BLK_DEV_CMD640_ENHANCED is not set
 # CONFIG_BLK_DEV_ISAPNP is not set
-# CONFIG_BLK_DEV_RZ1000 is not set
 CONFIG_BLK_DEV_IDEPCI=y
+# CONFIG_BLK_DEV_GENERIC is not set
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 CONFIG_BLK_DEV_IDEDMA_PCI=y
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -239,29 +241,29 @@ CONFIG_IDEDMA_PCI_AUTO=y
 CONFIG_IDEDMA_ONLYDISK=y
 CONFIG_BLK_DEV_IDEDMA=y
 # CONFIG_IDEDMA_PCI_WIP is not set
-# CONFIG_BLK_DEV_IDEDMA_TIMEOUT is not set
 # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
+CONFIG_BLK_DEV_ADMA=y
 # CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_AEC62XX_TUNING is not set
 CONFIG_BLK_DEV_ALI15X3=y
 # CONFIG_WDC_ALI15X3 is not set
 # CONFIG_BLK_DEV_AMD74XX is not set
 # CONFIG_AMD74XX_OVERRIDE is not set
 CONFIG_BLK_DEV_CMD64X=y
-# CONFIG_BLK_DEV_CMD680 is not set
 # CONFIG_BLK_DEV_CY82C693 is not set
 # CONFIG_BLK_DEV_CS5530 is not set
 # CONFIG_BLK_DEV_HPT34X is not set
 # CONFIG_HPT34X_AUTODMA is not set
 # CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_NFORCE is not set
 CONFIG_BLK_DEV_NS87415=y
 # CONFIG_BLK_DEV_OPTI621 is not set
-# CONFIG_BLK_DEV_ADMA100 is not set
-# CONFIG_BLK_DEV_PDC202XX is not set
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
 # CONFIG_PDC202XX_BURST is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
 # CONFIG_PDC202XX_FORCE is not set
 # CONFIG_BLK_DEV_RZ1000 is not set
 # CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
 # CONFIG_BLK_DEV_SIS5513 is not set
 # CONFIG_BLK_DEV_SLC90E66 is not set
 # CONFIG_BLK_DEV_TRM290 is not set
@@ -954,7 +956,7 @@ CONFIG_USB_AUERSWALD=m
 CONFIG_USB_RIO500=m
 # CONFIG_USB_BRLVGER is not set
 CONFIG_USB_LCD=m
-CONFIG_USB_SPEEDTOUCH=m
+# CONFIG_USB_SPEEDTOUCH is not set
 
 #
 # Bluetooth support

arch/sparc64/kernel/entry.S

@@ -1795,69 +1795,3 @@ __flushw_user:
 	 restore	%g0, %g0, %g0
 2:	retl
 	 nop
-
-/* This need not obtain the xtime_lock as it is coded in
- * an implicitly SMP safe way already.
- */
-	.align		64
-	.globl		do_gettimeofday
-do_gettimeofday:	/* %o0 = timevalp */
-	/* Load doubles must be used on xtime so that what we get
-	 * is guarenteed to be atomic, this is why we can run this
-	 * with interrupts on full blast.  Don't touch this... -DaveM
-	 *
-	 * Note with time_t changes to the timeval type, I must now use
-	 * nucleus atomic quad 128-bit loads.
-	 *
-	 * If xtime was stored recently, I've seen crap from the
-	 * quad load on Cheetah.  Putting a membar SYNC before
-	 * the quad load seems to make the problem go away. -DaveM
-	 * (we should nop out workarounds like this on spitfire)
-	 */
-	sethi	%hi(timer_tick_offset), %g3
-	sethi	%hi(xtime), %g2
-	sethi	%hi(timer_tick_compare), %g1
-	ldx	[%g3 + %lo(timer_tick_offset)], %g3
-	or	%g2, %lo(xtime), %g2
-	or	%g1, %lo(timer_tick_compare), %g1
-1:	membar	#Sync
-	ldda	[%g2] ASI_NUCLEUS_QUAD_LDD, %o4
-	BRANCH_IF_ANY_CHEETAH(o2,o1,2f)
-	ba,pt	%xcc, 3f
-	 rd	%tick, %o1
-2:	ba,pt	%xcc, 3f
-	 rd	%asr24, %o1
-3:	ldx	[%g1], %g7
-	membar	#Sync
-	ldda	[%g2] ASI_NUCLEUS_QUAD_LDD, %o2
-	xor	%o4, %o2, %o2
-	xor	%o5, %o3, %o3
-	orcc	%o2, %o3, %g0
-	bne,pn	%xcc, 1b
-	 sethi	%hi(wall_jiffies), %o2
-	sethi	%hi(jiffies), %o3
-	ldx	[%o2 + %lo(wall_jiffies)], %o2
-	ldx	[%o3 + %lo(jiffies)], %o3
-	sub	%o3, %o2, %o2
-	sethi	%hi(timer_ticks_per_usec_quotient), %o3
-	add	%g3, %o1, %o1
-	ldx	[%o3 + %lo(timer_ticks_per_usec_quotient)], %o3
-	sub	%o1, %g7, %o1
-	mulx	%o3, %o1, %o1
-	brz,pt	%o2, 1f
-	 srlx	%o1, 32, %o1
-	sethi	%hi(10000), %g2
-	or	%g2, %lo(10000), %g2
-	add	%o1, %g2, %o1
-1:	sethi	%hi(1000000), %o2
-	srlx	%o5, 32, %o5
-	or	%o2, %lo(1000000), %o2
-	add	%o5, %o1, %o5
-	cmp	%o5, %o2
-	bl,a,pn	%xcc, 1f
-	 stx	%o4, [%o0 + 0x0]
-	add	%o4, 0x1, %o4
-	sub	%o5, %o2, %o5
-	stx	%o4, [%o0 + 0x0]
-1:	retl
-	 st	%o5, [%o0 + 0x8]

arch/sparc64/kernel/init_task.c

@@ -8,7 +8,7 @@
 
 static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 struct mm_struct init_mm = INIT_MM(init_mm);
 
 /* .text section in head.S is aligned at 2 page boundry and this gets linked

arch/sparc64/kernel/pci.c

@@ -365,7 +365,7 @@ void pcibios_align_resource(void *data, struct resource *res,
 {
 }
 
-int pcibios_enable_device(struct pci_dev *pdev)
+int pcibios_enable_device(struct pci_dev *pdev, int mask)
 {
 	return 0;
 }

arch/sparc64/kernel/power.c

@@ -11,6 +11,7 @@
 #include <linux/signal.h>
 #include <linux/delay.h>
 
+#include <asm/system.h>
 #include <asm/ebus.h>
 
 #define __KERNEL_SYSCALLS__
@@ -37,8 +38,6 @@ extern void machine_halt(void);
 extern void machine_alt_power_off(void);
 static void (*poweroff_method)(void) = machine_alt_power_off;
 
-extern int serial_console;
-
 void machine_power_off(void)
 {
 	if (!serial_console) {

arch/sparc64/kernel/process.c

@@ -110,7 +110,6 @@ int cpu_idle(void)
 extern char reboot_command [];
 
 extern void (*prom_palette)(int);
-extern int serial_console;
 extern void (*prom_keyboard)(void);
 
 void machine_halt(void)

arch/sparc64/kernel/setup.c

@@ -314,12 +314,9 @@ int prom_callback(long *args)
 	return 0;
 }
 
-extern void rs_kgdb_hook(int tty_num); /* sparc/serial.c */
-
 unsigned int boot_flags = 0;
 #define BOOTME_DEBUG  0x1
 #define BOOTME_SINGLE 0x2
-#define BOOTME_KGDB   0x4
 
 static int console_fb __initdata = 0;
 
@@ -389,26 +386,6 @@ static void __init boot_flags_init(char *commands)
 			commands++;
 			while (*commands && *commands != ' ')
 				process_switch(*commands++);
-		} else if (strlen(commands) >= 9
-			   && !strncmp(commands, "kgdb=tty", 8)) {
-			boot_flags |= BOOTME_KGDB;
-			switch (commands[8]) {
-#ifdef CONFIG_SUN_SERIAL
-			case 'a':
-				rs_kgdb_hook(0);
-				prom_printf("KGDB: Using serial line /dev/ttya.\n");
-				break;
-			case 'b':
-				rs_kgdb_hook(1);
-				prom_printf("KGDB: Using serial line /dev/ttyb.\n");
-				break;
-#endif
-			default:
-				printk("KGDB: Unknown tty line.\n");
-				boot_flags &= ~BOOTME_KGDB;
-				break;
-			}
-			commands += 9;
 		} else {
 			if (!strncmp(commands, "console=", 8)) {
 				commands += 8;
@@ -484,7 +461,6 @@ extern void paging_init(void);
 
 void __init setup_arch(char **cmdline_p)
 {
-	extern int serial_console;  /* in console.c, of course */
 	unsigned long highest_paddr;
 	int i;
 
@@ -568,7 +544,6 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 
-#ifdef CONFIG_SUN_SERIAL
 	switch (console_fb) {
 	case 0: /* Let's get our io devices from prom */
 		{
@@ -597,10 +572,7 @@ void __init setup_arch(char **cmdline_p)
 	case 3: /* Force ttyb as console */
 		serial_console = 2;
 		break;
-	}
-#else
-	serial_console = 0;
-#endif
+	};
 	if (serial_console)
 		conswitchp = NULL;
 

arch/sparc64/kernel/signal.c

@@ -36,11 +36,6 @@
 static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 		     unsigned long orig_o0, int ret_from_syscall);
 
-/* This turned off for production... */
-/* #define DEBUG_SIGNALS 1 */
-/* #define DEBUG_SIGNALS_TRACE 1 */
-/* #define DEBUG_SIGNALS_MAPS 1 */
-
 int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from)
 {
 	if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
@@ -535,13 +530,8 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
 	if (invalid_frame_pointer (sf, sigframe_size))
 		goto sigill;
 
-	if (get_thread_wsaved() != 0) {
-#ifdef DEBUG_SIGNALS
-		printk ("%s[%d]: Invalid user stack frame for "
-			"signal delivery.\n", current->comm, current->pid);
-#endif
+	if (get_thread_wsaved() != 0)
 		goto sigill;
-	}
 
 	/* 2. Save the current process state */
 	err = copy_to_user(&sf->regs, regs, sizeof (*regs));
@@ -631,62 +621,6 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
 	}
 }
 
-#ifdef DEBUG_SIGNALS_MAPS
-
-#define MAPS_LINE_FORMAT	  "%016lx-%016lx %s %016lx %02x:%02x %lu "
-
-static inline void read_maps (void)
-{
-	struct vm_area_struct * map, * next;
-	char * buffer;
-	ssize_t i;
-
-	buffer = (char*)__get_free_page(GFP_KERNEL);
-	if (!buffer)
-		return;
-
-	for (map = current->mm->mmap ; map ; map = next ) {
-		/* produce the next line */
-		char *line;
-		char str[5], *cp = str;
-		int flags;
-		dev_t dev;
-		unsigned long ino;
-
-		/*
-		 * Get the next vma now (but it won't be used if we sleep).
-		 */
-		next = map->vm_next;
-		flags = map->vm_flags;
-
-		*cp++ = flags & VM_READ ? 'r' : '-';
-		*cp++ = flags & VM_WRITE ? 'w' : '-';
-		*cp++ = flags & VM_EXEC ? 'x' : '-';
-		*cp++ = flags & VM_MAYSHARE ? 's' : 'p';
-		*cp++ = 0;
-
-		dev = 0;
-		ino = 0;
-		if (map->vm_file != NULL) {
-			dev = map->vm_file->f_dentry->d_inode->i_dev;
-			ino = map->vm_file->f_dentry->d_inode->i_ino;
-			line = d_path(map->vm_file->f_dentry,
-				      map->vm_file->f_vfsmnt,
-				      buffer, PAGE_SIZE);
-		}
-		printk(MAPS_LINE_FORMAT, map->vm_start, map->vm_end, str, map->vm_pgoff << PAGE_SHIFT,
-			      MAJOR(dev), MINOR(dev), ino);
-		if (map->vm_file != NULL)
-			printk("%s\n", line);
-		else
-			printk("\n");
-	}
-	free_page((unsigned long)buffer);
-	return;
-}
-
-#endif
-
 /* Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
@@ -694,7 +628,6 @@ static inline void read_maps (void)
 static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 		     unsigned long orig_i0, int restart_syscall)
 {
-	unsigned long signr;
 	siginfo_t info;
 	struct k_sigaction *ka;
 	
@@ -709,9 +642,21 @@ static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 	}
 #endif	
 	for (;;) {
-		spin_lock_irq(&current->sigmask_lock);
-		signr = dequeue_signal(&current->blocked, &info);
-		spin_unlock_irq(&current->sigmask_lock);
+		sigset_t *mask = &current->blocked;
+		unsigned long signr = 0;
+
+		local_irq_disable();
+		if (current->sig->shared_pending.head) {
+			spin_lock(&current->sig->siglock);
+			signr = dequeue_signal(&current->sig->shared_pending, mask, &info);
+			spin_unlock(&current->sig->siglock);
+		}
+		if (!signr) {
+			spin_lock(&current->sigmask_lock);
+			signr = dequeue_signal(&current->pending, mask, &info);
+			spin_unlock(&current->sigmask_lock);
+		}
+		local_irq_enable();
 		
 		if (!signr)
 			break;
@@ -732,7 +677,7 @@ static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 			}
 
 			current->exit_code = signr;
-			current->state = TASK_STOPPED;
+			set_current_state(TASK_STOPPED);
 			notify_parent(current, SIGCHLD);
 			schedule();
 			if (!(signr = current->exit_code))
@@ -787,8 +732,7 @@ static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 
 			case SIGSTOP: {
 				struct signal_struct *sig;
-
-				current->state = TASK_STOPPED;
+				set_current_state(TASK_STOPPED);
 				current->exit_code = signr;
 				sig = current->parent->sig;
 				if (sig && !(sig->action[SIGCHLD-1].sa.sa_flags &
@@ -803,29 +747,8 @@ static int do_signal(sigset_t *oldset, struct pt_regs * regs,
 			case SIGBUS: case SIGSYS: case SIGXCPU: case SIGXFSZ:
 				if (do_coredump(signr, regs))
 					exit_code |= 0x80;
-#ifdef DEBUG_SIGNALS
-				/* Very useful to debug the dynamic linker */
-				printk ("Sig %d going...\n", (int)signr);
-				show_regs (regs);
-#ifdef DEBUG_SIGNALS_TRACE
-				{
-					struct reg_window *rw = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
-					unsigned long ins[8];
-                                                
-					while (rw &&
-					       !(((unsigned long) rw) & 0x3)) {
-					        copy_from_user(ins, &rw->ins[0], sizeof(ins));
-						printk("Caller[%016lx](%016lx,%016lx,%016lx,%016lx,%016lx,%016lx)\n", ins[7], ins[0], ins[1], ins[2], ins[3], ins[4], ins[5]);
-						rw = (struct reg_window *)(unsigned long)(ins[6] + STACK_BIAS);
-					}
-				}
-#endif			
-#ifdef DEBUG_SIGNALS_MAPS	
-				printk("Maps:\n");
-				read_maps();
-#endif
-#endif
-				/* fall through */
+				/* FALLTHRU */
+
 			default:
 				sig_exit(signr, exit_code, &info);
 				/* NOT REACHED */

arch/sparc64/kernel/signal32.c

@@ -34,12 +34,6 @@
 int do_signal32(sigset_t *oldset, struct pt_regs *regs,
 		unsigned long orig_o0, int ret_from_syscall);
 
-/* This turned off for production... */
-/* #define DEBUG_SIGNALS 1 */
-/* #define DEBUG_SIGNALS_TRACE 1 */
-/* #define DEBUG_SIGNALS_MAPS 1 */
-/* #define DEBUG_SIGNALS_TLB 1 */
-
 /* Signal frames: the original one (compatible with SunOS):
  *
  * Set up a signal frame... Make the stack look the way SunOS
@@ -525,12 +519,6 @@ setup_frame32(struct sigaction *sa, struct pt_regs *regs, int signr, sigset_t *o
 
 	sframep = (struct signal_sframe32 *)get_sigframe(sa, regs, SF_ALIGNEDSZ);
 	if (invalid_frame_pointer (sframep, sizeof(*sframep))){
-#ifdef DEBUG_SIGNALS /* fills up the console logs during crashme runs, yuck... */
-		printk("%s [%d]: User has trashed signal stack\n",
-		       current->comm, current->pid);
-		printk("Sigstack ptr %p handler at pc<%016lx> for sig<%d>\n",
-		       sframep, pc, signr);
-#endif
 		/* Don't change signal code and address, so that
 		 * post mortem debuggers can have a look.
 		 */
@@ -696,21 +684,11 @@ static inline void new_setup_frame32(struct k_sigaction *ka, struct pt_regs *reg
 
 	sf = (struct new_signal_frame32 *)get_sigframe(&ka->sa, regs, sigframe_size);
 	
-	if (invalid_frame_pointer (sf, sigframe_size)) {
-#ifdef DEBUG_SIGNALS
-		printk("new_setup_frame32(%s:%d): invalid_frame_pointer(%p, %d)\n",
-		       current->comm, current->pid, sf, sigframe_size);
-#endif
+	if (invalid_frame_pointer (sf, sigframe_size))
 		goto sigill;
-	}
 
-	if (get_thread_wsaved() != 0) {
-#ifdef DEBUG_SIGNALS
-		printk ("%s[%d]: Invalid user stack frame for "
-			"signal delivery.\n", current->comm, current->pid);
-#endif
+	if (get_thread_wsaved() != 0)
 		goto sigill;
-	}
 
 	/* 2. Save the current process state */
 	if (test_thread_flag(TIF_32BIT)) {
@@ -835,12 +813,8 @@ setup_svr4_frame32(struct sigaction *sa, unsigned long pc, unsigned long npc,
 	regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL;
 	sfp = (svr4_signal_frame_t *) get_sigframe(sa, regs, REGWIN_SZ + SVR4_SF_ALIGNED);
 
-	if (invalid_frame_pointer (sfp, sizeof (*sfp))){
-#ifdef DEBUG_SIGNALS
-		printk ("Invalid stack frame\n");
-#endif
+	if (invalid_frame_pointer (sfp, sizeof (*sfp)))
 		do_exit(SIGILL);
-	}
 
 	/* Start with a clean frame pointer and fill it */
 	err = clear_user(sfp, sizeof (*sfp));
@@ -939,9 +913,6 @@ setup_svr4_frame32(struct sigaction *sa, unsigned long pc, unsigned long npc,
 		regs->tnpc &= 0xffffffff;
 	}
 
-#ifdef DEBUG_SIGNALS
-	printk ("Solaris-frame: %x %x\n", (int) regs->tpc, (int) regs->tnpc);
-#endif
 	/* Arguments passed to signal handler */
 	if (regs->u_regs [14]){
 		struct reg_window32 *rw = (struct reg_window32 *)
@@ -975,12 +946,9 @@ svr4_getcontext(svr4_ucontext_t *uc, struct pt_regs *regs)
 	synchronize_user_stack();
 	save_and_clear_fpu();
 	
-	if (get_thread_wsaved()) {
-#ifdef DEBUG_SIGNALS
-		printk ("Uh oh, w_saved is not zero (%d)\n", (int) get_thread_wsaved());
-#endif
+	if (get_thread_wsaved())
 		do_exit (SIGSEGV);
-	}
+
 	err = clear_user(uc, sizeof (*uc));
 
 	/* Setup convenience variables */
@@ -1047,12 +1015,9 @@ asmlinkage int svr4_setcontext(svr4_ucontext_t *c, struct pt_regs *regs)
 	 */
 	flush_user_windows();
 	
-	if (get_thread_wsaved()) {
-#ifdef DEBUG_SIGNALS	
-		printk ("Uh oh, w_saved is: 0x%x\n", get_thread_wsaved());
-#endif
+	if (get_thread_wsaved())
 		goto sigsegv;
-	}
+
 	if (((unsigned long) c) & 3){
 		printk ("Unaligned structure passed\n");
 		goto sigsegv;
@@ -1067,12 +1032,8 @@ asmlinkage int svr4_setcontext(svr4_ucontext_t *c, struct pt_regs *regs)
 	gr = &c->mcontext.greg;
 	err = __get_user(pc, &((*gr)[SVR4_PC]));
 	err |= __get_user(npc, &((*gr)[SVR4_NPC]));
-	if ((pc | npc) & 3) {
-#ifdef DEBUG_SIGNALS	
-	        printk ("setcontext, PC or nPC were bogus\n");
-#endif
+	if ((pc | npc) & 3)
 		goto sigsegv;
-	}
 	
 	/* Retrieve information from passed ucontext */
 	/* note that nPC is ored a 1, this is used to inform entry.S */
@@ -1148,21 +1109,11 @@ static inline void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs
 
 	sf = (struct rt_signal_frame32 *)get_sigframe(&ka->sa, regs, sigframe_size);
 	
-	if (invalid_frame_pointer (sf, sigframe_size)) {
-#ifdef DEBUG_SIGNALS
-		printk("rt_setup_frame32(%s:%d): invalid_frame_pointer(%p, %d)\n",
-		       current->comm, current->pid, sf, sigframe_size);
-#endif
+	if (invalid_frame_pointer (sf, sigframe_size))
 		goto sigill;
-	}
 
-	if (get_thread_wsaved() != 0) {
-#ifdef DEBUG_SIGNALS
-		printk ("%s[%d]: Invalid user stack frame for "
-			"signal delivery.\n", current->comm, current->pid);
-#endif
+	if (get_thread_wsaved() != 0)
 		goto sigill;
-	}
 
 	/* 2. Save the current process state */
 	if (test_thread_flag(TIF_32BIT)) {
@@ -1317,62 +1268,6 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs
 	}
 }
 
-#ifdef DEBUG_SIGNALS_MAPS
-
-#define MAPS_LINE_FORMAT	  "%016lx-%016lx %s %016lx %02x:%02x %lu "
-
-static inline void read_maps (void)
-{
-	struct vm_area_struct * map, * next;
-	char * buffer;
-	ssize_t i;
-
-	buffer = (char*)__get_free_page(GFP_KERNEL);
-	if (!buffer)
-		return;
-
-	for (map = current->mm->mmap ; map ; map = next ) {
-		/* produce the next line */
-		char *line;
-		char str[5], *cp = str;
-		int flags;
-		dev_t dev;
-		unsigned long ino;
-
-		/*
-		 * Get the next vma now (but it won't be used if we sleep).
-		 */
-		next = map->vm_next;
-		flags = map->vm_flags;
-
-		*cp++ = flags & VM_READ ? 'r' : '-';
-		*cp++ = flags & VM_WRITE ? 'w' : '-';
-		*cp++ = flags & VM_EXEC ? 'x' : '-';
-		*cp++ = flags & VM_MAYSHARE ? 's' : 'p';
-		*cp++ = 0;
-
-		dev = 0;
-		ino = 0;
-		if (map->vm_file != NULL) {
-			dev = map->vm_file->f_dentry->d_inode->i_dev;
-			ino = map->vm_file->f_dentry->d_inode->i_ino;
-			line = d_path(map->vm_file->f_dentry,
-				      map->vm_file->f_vfsmnt,
-				      buffer, PAGE_SIZE);
-		}
-		printk(MAPS_LINE_FORMAT, map->vm_start, map->vm_end, str, map->vm_pgoff << PAGE_SHIFT,
-			      MAJOR(dev), MINOR(dev), ino);
-		if (map->vm_file != NULL)
-			printk("%s\n", line);
-		else
-			printk("\n");
-	}
-	free_page((unsigned long)buffer);
-	return;
-}
-
-#endif
-
 /* Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
@@ -1380,16 +1275,27 @@ static inline void read_maps (void)
 int do_signal32(sigset_t *oldset, struct pt_regs * regs,
 		unsigned long orig_i0, int restart_syscall)
 {
-	unsigned long signr;
 	struct k_sigaction *ka;
 	siginfo_t info;
 	
 	int svr4_signal = current->personality == PER_SVR4;
 	
 	for (;;) {
-		spin_lock_irq(&current->sigmask_lock);
-		signr = dequeue_signal(&current->blocked, &info);
-		spin_unlock_irq(&current->sigmask_lock);
+		sigset_t *mask = &current->blocked;
+		unsigned long signr = 0;
+
+		local_irq_disable();
+		if (current->sig->shared_pending.head) {
+			spin_lock(&current->sig->siglock);
+			signr = dequeue_signal(&current->sig->shared_pending, mask, &info);
+			spin_unlock(&current->sig->siglock);
+		}
+		if (!signr) {
+			spin_lock(&current->sigmask_lock);
+			signr = dequeue_signal(&current->pending, mask, &info);
+			spin_unlock(&current->sigmask_lock);
+		}
+		local_irq_enable();
 		
 		if (!signr)
 			break;
@@ -1410,7 +1316,7 @@ int do_signal32(sigset_t *oldset, struct pt_regs * regs,
 			}
 
 			current->exit_code = signr;
-			current->state = TASK_STOPPED;
+			set_current_state(TASK_STOPPED);
 			notify_parent(current, SIGCHLD);
 			schedule();
 			if (!(signr = current->exit_code))
@@ -1465,8 +1371,7 @@ int do_signal32(sigset_t *oldset, struct pt_regs * regs,
 
 			case SIGSTOP: {
 				struct signal_struct *sig;
-
-				current->state = TASK_STOPPED;
+				set_current_state(TASK_STOPPED);
 				current->exit_code = signr;
 				sig = current->parent->sig;
 				if (sig && !(sig->action[SIGCHLD-1].sa.sa_flags &
@@ -1480,40 +1385,8 @@ int do_signal32(sigset_t *oldset, struct pt_regs * regs,
 			case SIGBUS: case SIGSYS: case SIGXCPU: case SIGXFSZ:
 				if (do_coredump(signr, regs))
 					exit_code |= 0x80;
-#ifdef DEBUG_SIGNALS
-				/* Very useful to debug dynamic linker problems */
-				printk ("Sig %ld going for %s[%d]...\n", signr, current->comm, current->pid);
-				/* On SMP we are only interested in the current
-				 * CPU's registers.
-				 */
-				__show_regs (regs);
-#ifdef DEBUG_SIGNALS_TLB
-				do {
-					extern void sparc_ultra_dump_itlb(void);
-					extern void sparc_ultra_dump_dtlb(void);
-					sparc_ultra_dump_dtlb();
-					sparc_ultra_dump_itlb();
-				} while (0);
-#endif
-#ifdef DEBUG_SIGNALS_TRACE
-				{
-					struct reg_window32 *rw = (struct reg_window32 *)(regs->u_regs[UREG_FP] & 0xffffffff);
-					unsigned int ins[8];
-
-					while (rw &&
-					       !(((unsigned long) rw) & 0x3)) {
-						copy_from_user(ins, &rw->ins[0], sizeof(ins));
-						printk("Caller[%08x](%08x,%08x,%08x,%08x,%08x,%08x)\n", ins[7], ins[0], ins[1], ins[2], ins[3], ins[4], ins[5]);
-						rw = (struct reg_window32 *)(unsigned long)ins[6];
-					}
-				}
-#endif			
-#ifdef DEBUG_SIGNALS_MAPS	
-				printk("Maps:\n");
-				read_maps();
-#endif
-#endif
-				/* fall through */
+				/* FALLTHRU */
+
 			default:
 				sig_exit(signr, exit_code, &info);
 				/* NOT REACHED */

arch/sparc64/kernel/sys_sparc32.c

@@ -1921,30 +1921,42 @@ sys32_rt_sigtimedwait(sigset_t32 *uthese, siginfo_t32 *uinfo,
 			return -EINVAL;
 	}
 
-	spin_lock_irq(&current->sigmask_lock);
-	sig = dequeue_signal(&these, &info);
+	spin_lock_irq(&current->sig->siglock);
+	spin_lock(&current->sigmask_lock);
+	sig = dequeue_signal(&current->sig->shared_pending, &these, &info);
+	if (!sig)
+		sig = dequeue_signal(&current->pending, &these, &info);
 	if (!sig) {
-		/* None ready -- temporarily unblock those we're interested
-		   in so that we'll be awakened when they arrive.  */
-		sigset_t oldblocked = current->blocked;
-		sigandsets(&current->blocked, &current->blocked, &these);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sigmask_lock);
-
 		timeout = MAX_SCHEDULE_TIMEOUT;
 		if (uts)
 			timeout = (timespec_to_jiffies(&ts)
 				   + (ts.tv_sec || ts.tv_nsec));
 
-		current->state = TASK_INTERRUPTIBLE;
-		timeout = schedule_timeout(timeout);
-
-		spin_lock_irq(&current->sigmask_lock);
-		sig = dequeue_signal(&these, &info);
-		current->blocked = oldblocked;
-		recalc_sigpending();
+		if (timeout) {
+			/* None ready -- temporarily unblock those we're
+			 * interested while we are sleeping in so that we'll
+			 * be awakened when they arrive.  */
+			current->real_blocked = current->blocked;
+			sigandsets(&current->blocked, &current->blocked, &these);
+			recalc_sigpending();
+			spin_unlock(&current->sigmask_lock);
+			spin_unlock_irq(&current->sig->siglock);
+
+			current->state = TASK_INTERRUPTIBLE;
+			timeout = schedule_timeout(timeout);
+
+			spin_lock_irq(&current->sig->siglock);
+			spin_lock(&current->sigmask_lock);
+			sig = dequeue_signal(&current->sig->shared_pending, &these, &info);
+			if (!sig)
+				sig = dequeue_signal(&current->pending, &these, &info);
+			current->blocked = current->real_blocked;
+			siginitset(&current->real_blocked, 0);
+			recalc_sigpending();
+		}
 	}
-	spin_unlock_irq(&current->sigmask_lock);
+	spin_unlock(&current->sigmask_lock);
+	spin_unlock_irq(&current->sig->siglock);
 
 	if (sig) {
 		ret = sig;

arch/sparc64/kernel/systbls.S

@@ -56,7 +56,7 @@ sys_call_table32:
 /*170*/	.word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys32_getdents
 	.word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
 /*180*/	.word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys32_sigpending, sys32_query_module
-	.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_nis_syscall, sparc64_newuname
+	.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sparc64_newuname
 /*190*/	.word sys32_init_module, sparc64_personality, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
 	.word sys_nis_syscall, sys_nis_syscall, sys_getppid, sys32_sigaction, sys_sgetmask
 /*200*/	.word sys_ssetmask, sys_sigsuspend, sys32_newlstat, sys_uselib, old32_readdir
@@ -115,7 +115,7 @@ sys_call_table:
 /*170*/	.word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
 	.word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
 /*180*/	.word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_query_module
-	.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_nis_syscall, sparc64_newuname
+	.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sparc64_newuname
 /*190*/	.word sys_init_module, sparc64_personality, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
 	.word sys_nis_syscall, sys_nis_syscall, sys_getppid, sys_nis_syscall, sys_sgetmask
 /*200*/	.word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall

arch/sparc64/kernel/time.c

@@ -44,6 +44,8 @@ unsigned long mstk48t02_regs = 0UL;
 unsigned long ds1287_regs = 0UL;
 #endif
 
+extern unsigned long wall_jiffies;
+
 u64 jiffies_64;
 
 static unsigned long mstk48t08_regs = 0UL;
@@ -61,6 +63,8 @@ unsigned long timer_tick_offset;
 unsigned long timer_tick_compare;
 unsigned long timer_ticks_per_usec_quotient;
 
+#define TICK_SIZE (tick_nsec / 1000)
+
 static __inline__ void timer_check_rtc(void)
 {
 	/* last time the cmos clock got updated */
@@ -69,8 +73,8 @@ static __inline__ void timer_check_rtc(void)
 	/* Determine when to update the Mostek clock. */
 	if ((time_status & STA_UNSYNC) == 0 &&
 	    xtime.tv_sec > last_rtc_update + 660 &&
-	    xtime.tv_usec >= 500000 - ((unsigned) tick) / 2 &&
-	    xtime.tv_usec <= 500000 + ((unsigned) tick) / 2) {
+	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
+	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
 		if (set_rtc_mmss(xtime.tv_sec) == 0)
 			last_rtc_update = xtime.tv_sec;
 		else
@@ -390,7 +394,7 @@ static void __init set_system_time(void)
 	}
 
 	xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-	xtime.tv_usec = 0;
+	xtime.tv_nsec = 0;
 
 	if (mregs) {
 		tmp = mostek_read(mregs + MOSTEK_CREG);
@@ -428,7 +432,7 @@ void __init clock_probe(void)
 			(unsigned int) (long) &unix_tod);
 		prom_feval(obp_gettod);
 		xtime.tv_sec = unix_tod;
-		xtime.tv_usec = 0;
+		xtime.tv_nsec = 0;
 		return;
 	}
 
@@ -658,22 +662,58 @@ void do_settimeofday(struct timeval *tv)
 		return;
 
 	write_lock_irq(&xtime_lock);
-
+	/*
+	 * This is revolting. We need to set "xtime" correctly. However, the
+	 * value in this location is the value at the most recent update of
+	 * wall time.  Discover what correction gettimeofday() would have
+	 * made, and then undo it!
+	 */
 	tv->tv_usec -= do_gettimeoffset();
-	if(tv->tv_usec < 0) {
+	tv->tv_usec -= (jiffies - wall_jiffies) * (1000000 / HZ);
+
+	while (tv->tv_usec < 0) {
 		tv->tv_usec += 1000000;
 		tv->tv_sec--;
 	}
 
-	xtime = *tv;
+	xtime.tv_sec = tv->tv_sec;
+	xtime.tv_nsec = (tv->tv_usec * 1000);
 	time_adjust = 0;		/* stop active adjtime() */
 	time_status |= STA_UNSYNC;
 	time_maxerror = NTP_PHASE_LIMIT;
 	time_esterror = NTP_PHASE_LIMIT;
-
 	write_unlock_irq(&xtime_lock);
 }
 
+/* Ok, my cute asm atomicity trick doesn't work anymore.
+ * There are just too many variables that need to be protected
+ * now (both members of xtime, wall_jiffies, et al.)
+ */
+void do_gettimeofday(struct timeval *tv)
+{
+	unsigned long flags;
+	unsigned long usec, sec;
+
+	read_lock_irqsave(&xtime_lock, flags);
+	usec = do_gettimeoffset();
+	{
+		unsigned long lost = jiffies - wall_jiffies;
+		if (lost)
+			usec += lost * (1000000 / HZ);
+	}
+	sec = xtime.tv_sec;
+	usec += (xtime.tv_nsec / 1000);
+	read_unlock_irqrestore(&xtime_lock, flags);
+
+	while (usec >= 1000000) {
+		usec -= 1000000;
+		sec++;
+	}
+
+	tv->tv_sec = sec;
+	tv->tv_usec = usec;
+}
+
 static int set_rtc_mmss(unsigned long nowtime)
 {
 	int real_seconds, real_minutes, chip_minutes;

arch/sparc64/mm/init.c

@@ -1515,14 +1515,6 @@ void __init paging_init(void)
 	pages_avail = 0;
 	last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
 
-#ifdef CONFIG_SUN_SERIAL
-	/* This does not logically belong here, but we need to
-	 * call it at the moment we are able to use the bootmem
-	 * allocator.
-	 */
-	sun_serial_setup();
-#endif
-
 	/* Inherit non-locked OBP mappings. */
 	inherit_prom_mappings();
 	

arch/sparc64/prom/misc.c

@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <asm/openprom.h>
 #include <asm/oplib.h>
+#include <asm/system.h>
 
 /* Reset and reboot the machine with the command 'bcommand'. */
 void prom_reboot(char *bcommand)
@@ -33,7 +34,6 @@ void prom_feval(char *fstring)
 
 /* We want to do this more nicely some day. */
 extern void (*prom_palette)(int);
-extern int serial_console;
 
 #ifdef CONFIG_SMP
 extern void smp_capture(void);

drivers/serial/sunsu.c

@@ -34,6 +34,7 @@
 #include <linux/serio.h>
 #endif
 #include <linux/init.h>
+#include <linux/delay.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -1019,6 +1020,8 @@ static void sunsu_autoconfig(struct uart_sunsu_port *up)
 	if (!up->port_node || !up->su_type)
 		return;
 
+	up->port.iotype = SERIAL_IO_MEM;
+
 	/*
 	 * First we look for Ebus-bases su's
 	 */

drivers/serial/sunzilog.c

@@ -382,13 +382,6 @@ static void sunzilog_receive_chars(struct uart_sunzilog_port *up,
 			sun_do_break();
 			return;
 		}
-#ifndef CONFIG_SPARC64
-		/* Look for kgdb 'stop' character.  */
-		if (ZS_IS_KGDB(up) && (ch == '\003')) {
-			breakpoint();
-			return;
-		}
-#endif
 
 		/* A real serial line, record the character and status.  */
 		*tty->flip.char_buf_ptr = ch;
@@ -1152,11 +1145,11 @@ static struct zilog_layout * __init get_zs_sun4u(int chip)
 static struct zilog_layout * __init get_zs_sun4cmd(int chip)
 {
 	struct linux_prom_irqs irq_info[2];
-	unsigned long mapped_addr;
-	int zsnode, chipid, cpunode;
+	unsigned long mapped_addr = 0;
+	int zsnode, chipid, cpunode, bbnode;
 
 	if (sparc_cpu_model == sun4d) {
-		int bbnode, walk, no;
+		int walk, no;
 
 		zsnode = 0;
 		bbnode = 0;
@@ -1249,7 +1242,7 @@ static struct zilog_layout * __init get_zs_sun4cmd(int chip)
 		} else if (zilog_irq != irq_info[0].pri) {
 			prom_printf("SunZilog: Inconsistent IRQ layout for Zilog %d.\n",
 				    chip);
-			promt_halt();
+			prom_halt();
 		}
 		break;
 	}
@@ -1290,7 +1283,7 @@ static struct zilog_layout * __init get_zs(int chip)
 		zilog_irq = 12;
 		res.end = (res.start + (8 - 1));
 		res.flags = IORESOURCE_IO;
-		return sbus_ioremap(&res, 0, 8, "SunZilog");
+		return (struct zilog_layout *) sbus_ioremap(&res, 0, 8, "SunZilog");
 	}
 
 	return get_zs_sun4cmd(chip);
@@ -1649,13 +1642,10 @@ static int __init sunzilog_init(void)
 	/* Sun4 Zilog setup is hard coded, no probing to do.  */
 	if (sparc_cpu_model == sun4) {
 		NUM_SUNZILOG = 2;
-		goto no_probe;
-	}
-
-	node = prom_getchild(prom_root_node);
-	if (sparc_cpu_model == sun4d) {
+	} else if (sparc_cpu_model == sun4d) {
 		int bbnode;
 
+		node = prom_getchild(prom_root_node);
 		NUM_SUNZILOG = 0;
 		while (node &&
 		       (node = prom_searchsiblings(node, "cpu-unit"))) {
@@ -1664,7 +1654,6 @@ static int __init sunzilog_init(void)
 				NUM_SUNZILOG += 2;
 			node = prom_getsibling(node);
 		}
-		goto no_probe;
 	} else if (sparc_cpu_model == sun4u) {
 		int central_node;
 
@@ -1675,27 +1664,28 @@ static int __init sunzilog_init(void)
 		if (central_node != 0 && central_node != -1)
 			node = prom_searchsiblings(prom_getchild(central_node), "fhc");
 		else
-			node = prom_searchsiblings(node, "sbus");
+			node = prom_searchsiblings(prom_getchild(prom_root_node), "sbus");
 		if (node != 0 && node != -1)
 			node = prom_getchild(node);
 		if (node == 0 || node == -1)
 			return -ENODEV;
+
+		node = prom_searchsiblings(node, "zs");
+		if (!node)
+			return -ENODEV;
+		
+		NUM_SUNZILOG = 2;
 	} else {
+		node = prom_getchild(prom_root_node);
 		node = prom_searchsiblings(node, "obio");
 		if (node)
 			node = prom_getchild(node);
+		if (!node)
+			return -ENODEV;
+
 		NUM_SUNZILOG = 2;
-		goto no_probe;
 	}
 
-	node = prom_searchsiblings(node, "zs");
-	if (!node)
-		return -ENODEV;
-		
-	NUM_SUNZILOG = 2;
-
-no_probe:
-
 	sunzilog_alloc_tables();
 
 	sunzilog_ports_init();

include/asm-sparc/hardirq.h

@@ -39,8 +39,8 @@ typedef struct {
  * - ( bit 26 is the PREEMPT_ACTIVE flag. )
  *
  * PREEMPT_MASK: 0x000000ff
- * HARDIRQ_MASK: 0x0000ff00
- * SOFTIRQ_MASK: 0x00ff0000
+ * SOFTIRQ_MASK: 0x0000ff00
+ * HARDIRQ_MASK: 0x00ff0000
  */
 
 #define PREEMPT_BITS    8
@@ -90,8 +90,10 @@ typedef struct {
 #define irq_enter()             (preempt_count() += HARDIRQ_OFFSET)
 
 #if CONFIG_PREEMPT
+# define in_atomic()	(preempt_count() != kernel_locked())
 # define IRQ_EXIT_OFFSET (HARDIRQ_OFFSET-1)
 #else
+# define in_atomic()	(preempt_count() != 0)
 # define IRQ_EXIT_OFFSET HARDIRQ_OFFSET
 #endif
 #define irq_exit()                                                      \
@@ -121,7 +123,7 @@ do {                                                                    \
 
 #ifndef CONFIG_SMP
 
-#define synchronize_irq()	barrier()
+#define synchronize_irq(irq)	barrier()
 
 #else /* (CONFIG_SMP) */
 

include/asm-sparc/highmem.h

@@ -148,6 +148,19 @@ static inline void kunmap_atomic(void *kvaddr, enum km_type type)
 	dec_preempt_count();
 }
 
+static inline struct page *kmap_atomic_to_page(void *ptr)
+{
+	unsigned long idx, vaddr = (unsigned long)ptr;
+	pte_t *pte;
+
+	if (vaddr < FIX_KMAP_BEGIN)
+		return virt_to_page(ptr);
+
+	idx = ((vaddr - FIX_KMAP_BEGIN) >> PAGE_SHIFT);
+	pte = kmap_pte + idx;
+	return pte_page(*pte);
+}
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_HIGHMEM_H */

include/asm-sparc/ide.h

@@ -81,92 +81,30 @@ static __inline__ void ide_init_default_hwifs(void)
  * The following are not needed for the non-m68k ports
  */
 #define ide_ack_intr(hwif)		(1)
-#define ide_fix_driveid(id)		do {} while (0)
 #define ide_release_lock(lock)		do {} while (0)
 #define ide_get_lock(lock, hdlr, data)	do {} while (0)
 
-/* From m68k code... */
-
-#ifdef insl
-#undef insl
-#endif
-#ifdef outsl
-#undef outsl
-#endif
-#ifdef insw
-#undef insw
-#endif
-#ifdef outsw
-#undef outsw
-#endif
-
-#define insl(data_reg, buffer, wcount) insw(data_reg, buffer, (wcount)<<1)
-#define outsl(data_reg, buffer, wcount) outsw(data_reg, buffer, (wcount)<<1)
-
-#define insw(port, buf, nr) ide_insw((port), (buf), (nr))
-#define outsw(port, buf, nr) ide_outsw((port), (buf), (nr))
-
-static __inline__ void ide_insw(unsigned long port,
-				void *dst,
-				unsigned long count)
-{
-	volatile unsigned short *data_port;
-	/* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */
-	u16 *ps = dst;
-	u32 *pi;
-
-	data_port = (volatile unsigned short *)port;
-
-	if(((unsigned long)ps) & 0x2) {
-		*ps++ = *data_port;
-		count--;
-	}
-	pi = (u32 *)ps;
-	while(count >= 2) {
-		u32 w;
-
-		w  = (*data_port) << 16;
-		w |= (*data_port);
-		*pi++ = w;
-		count -= 2;
-	}
-	ps = (u16 *)pi;
-	if(count)
-		*ps++ = *data_port;
-
-	/* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */
-}
-
-static __inline__ void ide_outsw(unsigned long port,
-				 const void *src,
-				 unsigned long count)
-{
-	volatile unsigned short *data_port;
-	/* unsigned long end = (unsigned long)src + (count << 1); */
-	const u16 *ps = src;
-	const u32 *pi;
-
-	data_port = (volatile unsigned short *)port;
-
-	if(((unsigned long)src) & 0x2) {
-		*data_port = *ps++;
-		count--;
-	}
-	pi = (const u32 *)ps;
-	while(count >= 2) {
-		u32 w;
-
-		w = *pi++;
-		*data_port = (w >> 16);
-		*data_port = w;
-		count -= 2;
-	}
-	ps = (const u16 *)pi;
-	if(count)
-		*data_port = *ps;
+/* XXX Known to be broken.  Axboe will fix the problems this
+ * XXX has by making seperate IN/OUT macros for IDE_DATA
+ * XXX register and rest of IDE regs and also using
+ * XXX ide_ioreg_t instead of u32 for ports. -DaveM
+ */
 
-	/* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */
-}
+#define HAVE_ARCH_IN_BYTE
+#define IN_BYTE(p)		(*((volatile u8 *)(p)))
+#define IN_WORD(p)		(*((volatile u16 *)(p)))
+#define IN_LONG(p)		(*((volatile u32 *)(p)))
+#define IN_BYTE_P		IN_BYTE
+#define IN_WORD_P		IN_WORD
+#define IN_LONG_P		IN_LONG
+
+#define HAVE_ARCH_OUT_BYTE
+#define OUT_BYTE(b,p)		((*((volatile u8 *)(p))) = (b))
+#define OUT_WORD(w,p)		((*((volatile u16 *)(p))) = (w))
+#define OUT_LONG(l,p)		((*((volatile u32 *)(p))) = (l))
+#define OUT_BYTE_P		OUT_BYTE
+#define OUT_WORD_P		OUT_WORD
+#define OUT_LONG_P		OUT_LONG
 
 #endif /* __KERNEL__ */
 

include/asm-sparc/irq.h

@@ -21,6 +21,8 @@ BTFIXUPDEF_CALL(char *, __irq_itoa, unsigned int)
 
 #define NR_IRQS    15
 
+#define irq_cannonicalize(irq)	(irq)
+
 /* Dave Redman (djhr@tadpole.co.uk)
  * changed these to function pointers.. it saves cycles and will allow
  * the irq dependencies to be split into different files at a later date

include/asm-sparc/kmap_types.h

@@ -11,6 +11,8 @@ enum km_type {
 	KM_BIO_DST_IRQ,
 	KM_PTE0,
 	KM_PTE1,
+	KM_IRQ0,
+	KM_IRQ1,
 	KM_TYPE_NR
 };
 

include/asm-sparc/spinlock.h

@@ -42,6 +42,7 @@ typedef struct _rwlock_debug rwlock_t;
 #define RW_LOCK_UNLOCKED (rwlock_t) { 0, 0, {0} }
 
 #define rwlock_init(lp)	do { *(lp)= RW_LOCK_UNLOCKED; } while(0)
+#define rwlock_is_locked(lp) ((lp)->lock != 0)
 
 extern void _do_read_lock(rwlock_t *rw, char *str);
 extern void _do_read_unlock(rwlock_t *rw, char *str);
@@ -141,6 +142,7 @@ typedef struct { volatile unsigned int lock; } rwlock_t;
 #define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
 
 #define rwlock_init(lp)	do { *(lp)= RW_LOCK_UNLOCKED; } while(0)
+#define rwlock_is_locked(lp) ((lp)->lock != 0)
 
 
 /* Sort of like atomic_t's on Sparc, but even more clever.

include/asm-sparc/system.h

@@ -56,6 +56,17 @@ extern unsigned long empty_zero_page;
 extern struct linux_romvec *romvec;
 #define halt() romvec->pv_halt()
 
+extern void sun_do_break(void);
+extern int serial_console;
+extern int stop_a_enabled;
+
+static __inline__ int con_is_present(void)
+{
+	return serial_console ? 0 : 1;
+}
+
+extern struct pt_regs *kbd_pt_regs;
+
 /* When a context switch happens we must flush all user windows so that
  * the windows of the current process are flushed onto its stack. This
  * way the windows are all clean for the next process and the stack
@@ -113,6 +124,7 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
 	"restore; restore; restore; restore; restore; restore; restore"); \
 } while(0)
 #define finish_arch_switch(rq, next)	do{ }while(0)
+#define task_running(rq, p)		((rq)->curr == (p))
 
 	/* Much care has gone into this code, do not touch it.
 	 *
@@ -263,6 +275,15 @@ extern __inline__ unsigned long read_psr_and_cli(void)
 #define local_irq_save(flags)	((flags) = read_psr_and_cli())
 #define local_irq_restore(flags)	setipl((flags))
 
+/* On sparc32 IRQ flags are the PSR register in the PSR_PIL
+ * field.
+ */
+#define irqs_disabled()		\
+({	unsigned long flags;	\
+	local_save_flags(flags);\
+	(flags & PSR_PIL) != 0;	\
+})
+
 #ifdef CONFIG_SMP
 
 extern unsigned char global_irq_holder;
@@ -282,9 +303,6 @@ extern void __global_restore_flags(unsigned long flags);
 
 #define cli() local_irq_disable()
 #define sti() local_irq_enable()
-#define save_flags(x) local_save_flags(x)
-#define restore_flags(x) local_irq_restore(x)
-#define save_and_cli(x) local_irq_save(x)
 
 #endif
 

include/asm-sparc/unistd.h

@@ -203,7 +203,7 @@
 #define __NR_setpgid            185 /* Common                                      */
 #define __NR_fremovexattr       186 /* SunOS: pathconf                             */
 #define __NR_tkill              187 /* SunOS: fpathconf                            */
-/* #define __NR_sysconf         188    SunOS Specific                              */
+#define __NR_exit_group		188 /* Linux specific, sysconf undef SunOS         */
 #define __NR_uname              189 /* Linux Specific                              */
 #define __NR_init_module        190 /* Linux Specific                              */
 #define __NR_personality        191 /* Linux Specific                              */

include/asm-sparc64/hardirq.h

@@ -85,8 +85,10 @@ typedef struct {
 #define irq_enter()		(preempt_count() += HARDIRQ_OFFSET)
 
 #if CONFIG_PREEMPT
+# define in_atomic()	(preempt_count() != kernel_locked())
 # define IRQ_EXIT_OFFSET (HARDIRQ_OFFSET-1)
 #else
+# define in_atomic()	(preempt_count() != 0)
 # define IRQ_EXIT_OFFSET HARDIRQ_OFFSET
 #endif
 #define irq_exit()							\

include/asm-sparc64/ide.h

@@ -78,112 +78,63 @@ static __inline__ void ide_init_default_hwifs(void)
  * The following are not needed for the non-m68k ports
  */
 #define ide_ack_intr(hwif)		(1)
-#define ide_fix_driveid(id)		do {} while (0)
 #define ide_release_lock(lock)		do {} while (0)
 #define ide_get_lock(lock, hdlr, data)	do {} while (0)
 
-/* From m68k code... */
-
-#ifdef insl
-#undef insl
-#endif
-#ifdef outsl
-#undef outsl
-#endif
-#ifdef insw
-#undef insw
-#endif
-#ifdef outsw
-#undef outsw
-#endif
-
-#define insl(data_reg, buffer, wcount) insw(data_reg, buffer, (wcount)<<1)
-#define outsl(data_reg, buffer, wcount) outsw(data_reg, buffer, (wcount)<<1)
-
-#define insw(port, buf, nr) ide_insw((port), (buf), (nr))
-#define outsw(port, buf, nr) ide_outsw((port), (buf), (nr))
-
-static __inline__ unsigned int inw_be(unsigned long addr)
-{
-	unsigned int ret;
+/* XXX Known to be broken.  Axboe will fix the problems this
+ * XXX has by making seperate IN/OUT macros for IDE_DATA
+ * XXX register and rest of IDE regs and also using
+ * XXX ide_ioreg_t instead of u32 for ports. -DaveM
+ */
 
-	__asm__ __volatile__("lduha [%1] %2, %0"
+#define HAVE_ARCH_IN_BYTE
+static __inline__ u8 IN_BYTE(ide_ioreg_t addr)
+{	u8 ret;
+	 __asm__ __volatile__("lduba [%1] %2, %0\t/* ide_in_byte */"
 			     : "=r" (ret)
 			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
-
 	return ret;
 }
+static __inline__ u16 IN_WORD(ide_ioreg_t addr)
+{	u16 ret;
+	__asm__ __volatile__("lduha [%1] %2, %0\t/* ide_in_word */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+	return ret;
+}
+static __inline__ u16 IN_LONG(ide_ioreg_t addr)
+{	u32 ret;
+	__asm__ __volatile__("lduwa [%1] %2, %0\t/* ide_in_long */"
+			     : "=r" (ret)
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+	return ret;
+}
+#define IN_BYTE_P		IN_BYTE
+#define IN_WORD_P		IN_WORD
+#define IN_LONG_P		IN_LONG
 
-static __inline__ void ide_insw(unsigned long port,
-				void *dst,
-				unsigned long count)
+#define HAVE_ARCH_OUT_BYTE
+static __inline__ void OUT_BYTE(u8 byte, ide_ioreg_t addr)
 {
-#if (L1DCACHE_SIZE > PAGE_SIZE)		/* is there D$ aliasing problem */
-	unsigned long end = (unsigned long)dst + (count << 1);
-#endif
-	u16 *ps = dst;
-	u32 *pi;
-
-	if(((u64)ps) & 0x2) {
-		*ps++ = inw_be(port);
-		count--;
-	}
-	pi = (u32 *)ps;
-	while(count >= 2) {
-		u32 w;
-
-		w  = inw_be(port) << 16;
-		w |= inw_be(port);
-		*pi++ = w;
-		count -= 2;
-	}
-	ps = (u16 *)pi;
-	if(count)
-		*ps++ = inw_be(port);
-
-#if (L1DCACHE_SIZE > PAGE_SIZE)		/* is there D$ aliasing problem */
-	__flush_dcache_range((unsigned long)dst, end);
-#endif
+	__asm__ __volatile__("stba %r0, [%1] %2\t/* ide_out_byte */"
+			     : /* no outputs */
+			     : "Jr" (byte), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
 }
-
-static __inline__ void outw_be(unsigned short w, unsigned long addr)
+static __inline__ void OUT_WORD(u16 word, ide_ioreg_t addr)
 {
-	__asm__ __volatile__("stha %0, [%1] %2"
+	__asm__ __volatile__("stha %r0, [%1] %2\t/* ide_out_word */"
 			     : /* no outputs */
-			     : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "Jr" (word), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
 }
-
-static __inline__ void ide_outsw(unsigned long port,
-				 const void *src,
-				 unsigned long count)
+static __inline__ void OUT_LONG(u32 _long, ide_ioreg_t addr)
 {
-#if (L1DCACHE_SIZE > PAGE_SIZE)		/* is there D$ aliasing problem */
-	unsigned long end = (unsigned long)src + (count << 1);
-#endif
-	const u16 *ps = src;
-	const u32 *pi;
-
-	if(((u64)src) & 0x2) {
-		outw_be(*ps++, port);
-		count--;
-	}
-	pi = (const u32 *)ps;
-	while(count >= 2) {
-		u32 w;
-
-		w = *pi++;
-		outw_be((w >> 16), port);
-		outw_be(w, port);
-		count -= 2;
-	}
-	ps = (const u16 *)pi;
-	if(count)
-		outw_be(*ps, port);
-
-#if (L1DCACHE_SIZE > PAGE_SIZE)		/* is there D$ aliasing problem */
-	__flush_dcache_range((unsigned long)src, end);
-#endif
+	__asm__ __volatile__("stwa %r0, [%1] %2\t/* ide_out_long */"
+			     : /* no outputs */
+			     : "Jr" (_long), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
 }
+#define OUT_BYTE_P		OUT_BYTE
+#define OUT_WORD_P		OUT_WORD
+#define OUT_LONG_P		OUT_LONG
 
 #endif /* __KERNEL__ */
 

include/asm-sparc64/spinlock.h

@@ -112,6 +112,7 @@ extern int _spin_trylock (spinlock_t *lock);
 typedef unsigned int rwlock_t;
 #define RW_LOCK_UNLOCKED	0
 #define rwlock_init(lp) do { *(lp) = RW_LOCK_UNLOCKED; } while(0)
+#define rwlock_is_locked(x) (*(x) != RW_LOCK_UNLOCKED)
 
 extern void __read_lock(rwlock_t *);
 extern void __read_unlock(rwlock_t *);
@@ -132,6 +133,7 @@ typedef struct {
 } rwlock_t;
 #define RW_LOCK_UNLOCKED	(rwlock_t) { 0, 0, 0xff, { 0, 0, 0, 0 } }
 #define rwlock_init(lp) do { *(lp) = RW_LOCK_UNLOCKED; } while(0)
+#define rwlock_is_locked(x) ((x)->lock != 0)
 
 extern void _do_read_lock(rwlock_t *rw, char *str);
 extern void _do_read_unlock(rwlock_t *rw, char *str);

include/asm-sparc64/unistd.h

@@ -203,7 +203,7 @@
 #define __NR_setpgid            185 /* Common                                      */
 #define __NR_fremovexattr       186 /* SunOS: pathconf                             */
 #define __NR_tkill              187 /* SunOS: fpathconf                            */
-/* #define __NR_sysconf         188    SunOS Specific                              */
+#define __NR_exit_group		188 /* Linux specific, sysconf undef SunOS         */
 #define __NR_uname              189 /* Linux Specific                              */
 #define __NR_init_module        190 /* Linux Specific                              */
 #define __NR_personality        191 /* Linux Specific                              */

kernel/signal.c

@@ -73,12 +73,21 @@ int max_queued_signals = 1024;
 ----------------------------------------------------------
 */
 
+/* Some systems do not have a SIGSTKFLT and the kernel never
+ * generates such signals anyways.
+ */
+#ifdef SIGSTKFLT
+#define M_SIGSTKFLT	M(SIGSTKFLT)
+#else
+#define M_SIGSTKFLT	0
+#endif
+
 #define M(sig) (1UL << (sig))
 
 #define SIG_USER_SPECIFIC_MASK (\
 	M(SIGILL)    |  M(SIGTRAP)   |  M(SIGABRT)   |  M(SIGBUS)    | \
 	M(SIGFPE)    |  M(SIGSEGV)   |  M(SIGPIPE)   |  M(SIGXFSZ)   | \
-	M(SIGPROF)   |  M(SIGSYS)    |  M(SIGSTKFLT) |  M(SIGCONT)   )
+	M(SIGPROF)   |  M(SIGSYS)    |  M_SIGSTKFLT |  M(SIGCONT)   )
 
 #define SIG_USER_LOAD_BALANCE_MASK (\
         M(SIGHUP)    |  M(SIGINT)    |  M(SIGQUIT)   |  M(SIGUSR1)   | \
@@ -95,7 +104,7 @@ int max_queued_signals = 1024;
 	M(SIGKILL)   |  M(SIGUSR1)   |  M(SIGSEGV)   |  M(SIGUSR2)   | \
 	M(SIGPIPE)   |  M(SIGALRM)   |  M(SIGTERM)   |  M(SIGXCPU)   | \
 	M(SIGXFSZ)   |  M(SIGVTALRM) |  M(SIGPROF)   |  M(SIGPOLL)   | \
-	M(SIGSYS)    |  M(SIGSTKFLT) |  M(SIGPWR)    |  M(SIGCONT)   | \
+	M(SIGSYS)    |  M_SIGSTKFLT  |  M(SIGPWR)    |  M(SIGCONT)   | \
         M(SIGSTOP)   |  M(SIGTSTP)   |  M(SIGTTIN)   |  M(SIGTTOU)   )
 
 #define SIG_KERNEL_ONLY_MASK (\