Merge

arch/alpha/Kconfig

@@ -458,6 +458,11 @@ config ALPHA_SRM
 
 	  If unsure, say N.
 
+config EARLY_PRINTK
+	bool
+	depends on ALPHA_GENERIC || ALPHA_SRM
+	default y
+
 config ALPHA_EISA
 	bool
 	depends on ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_NORITAKE || ALPHA_RAWHIDE

arch/alpha/kernel/Makefile

@@ -33,8 +33,13 @@ obj-y    += err_titan.o err_marvel.o
 
 obj-y	 += es1888.o smc37c669.o smc37c93x.o ns87312.o gct.o
 
+obj-y    += srmcons.o
+
 else
 
+# Misc support
+obj-$(CONFIG_ALPHA_SRM)		+= srmcons.o
+
 # Core logic support
 obj-$(CONFIG_ALPHA_APECS)	+= core_apecs.o
 obj-$(CONFIG_ALPHA_CIA)		+= core_cia.o

arch/alpha/kernel/alpha_ksyms.c

@@ -40,7 +40,6 @@
 
 extern struct hwrpb_struct *hwrpb;
 extern void dump_thread(struct pt_regs *, struct user *);
-extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 extern spinlock_t rtc_lock;
 
 /* these are C runtime functions with special calling conventions: */
@@ -144,7 +143,9 @@ EXPORT_SYMBOL(pci_dac_dma_to_offset);
 #endif
 
 EXPORT_SYMBOL(dump_thread);
-EXPORT_SYMBOL(dump_fpu);
+EXPORT_SYMBOL(dump_elf_thread);
+EXPORT_SYMBOL(dump_elf_task);
+EXPORT_SYMBOL(dump_elf_task_fp);
 EXPORT_SYMBOL(hwrpb);
 EXPORT_SYMBOL(start_thread);
 EXPORT_SYMBOL(alpha_read_fp_reg);

arch/alpha/kernel/core_marvel.c

@@ -732,21 +732,6 @@ marvel_iounmap(unsigned long addr)
 EXPORT_SYMBOL(marvel_ioremap);
 EXPORT_SYMBOL(marvel_iounmap);
 #endif
-
-/*
- * SRMCons support
- *
- * Marvel doesn't have a real serial console -- it's either graphics or 
- * server management based. If we're running on the server management based
- * console, allow the srmcons callback driver to be a console device.
- */
-int
-marvel_srmcons_allowed(void)
-{
-	u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
-
-	return (pu64[7] == 2);
-}
 
 
 /*
@@ -874,8 +859,6 @@ marvel_node_mem_size(int nid)
 #include <linux/slab.h>
 #include <linux/delay.h>
 
-#define MARVEL_AGP_APER_SIZE (64 * 1024 * 1024)
-
 struct marvel_agp_aperture {
 	struct pci_iommu_arena *arena;
 	long pg_start;
@@ -887,11 +870,14 @@ marvel_agp_setup(alpha_agp_info *agp)
 {
 	struct marvel_agp_aperture *aper;
 
+	if (!alpha_agpgart_size)
+		return -ENOMEM;
+
 	aper = kmalloc(sizeof(*aper), GFP_KERNEL);
 	if (aper == NULL) return -ENOMEM;
 
 	aper->arena = agp->hose->sg_pci;
-	aper->pg_count = MARVEL_AGP_APER_SIZE / PAGE_SIZE;
+	aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
 	aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
 				       aper->pg_count - 1);
 

arch/alpha/kernel/core_titan.c

@@ -580,8 +580,6 @@ EXPORT_SYMBOL(titan_iounmap);
 #include <linux/slab.h>
 #include <linux/delay.h>
 
-#define TITAN_AGP_APER_SIZE (64 * 1024 * 1024)
-
 struct titan_agp_aperture {
 	struct pci_iommu_arena *arena;
 	long pg_start;
@@ -593,12 +591,15 @@ titan_agp_setup(alpha_agp_info *agp)
 {
 	struct titan_agp_aperture *aper;
 
+	if (!alpha_agpgart_size)
+		return -ENOMEM;
+
 	aper = kmalloc(sizeof(struct titan_agp_aperture), GFP_KERNEL);
 	if (aper == NULL)
 		return -ENOMEM;
 
 	aper->arena = agp->hose->sg_pci;
-	aper->pg_count = TITAN_AGP_APER_SIZE / PAGE_SIZE;
+	aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
 	aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
 				       aper->pg_count - 1);
 	if (aper->pg_start < 0) {

arch/alpha/kernel/irq.c

@@ -534,7 +534,7 @@ show_interrupts(struct seq_file *p, void *v)
 #else
 		for (j = 0; j < NR_CPUS; j++)
 			if (cpu_online(j))
-				seq_printf(p, "%10u ", kstat_cpu(i).irqs[j]);
+				seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
 		seq_printf(p, " %14s", irq_desc[i].handler->typename);
 		seq_printf(p, "  %c%s",

arch/alpha/kernel/pci_impl.h

@@ -71,6 +71,8 @@ struct pci_iommu_arena;
 
 #define IRONGATE_DEFAULT_MEM_BASE ((256*8-16)*1024*1024)
 
+#define DEFAULT_AGP_APER_SIZE	(64*1024*1024)
+
 /* 
  * A small note about bridges and interrupts.  The DECchip 21050 (and
  * later) adheres to the PCI-PCI bridge specification.  This says that
@@ -153,6 +155,8 @@ extern struct pci_controller *pci_isa_hose;
 /* Indicate that we trust the console to configure things properly.  */
 extern int pci_probe_only;
 
+extern unsigned long alpha_agpgart_size;
+
 extern void common_init_pci(void);
 extern u8 common_swizzle(struct pci_dev *, u8 *);
 extern struct pci_controller *alloc_pci_controller(void);

arch/alpha/kernel/process.c

@@ -313,7 +313,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 }
 
 /*
- * fill in the user structure for a core dump..
+ * Fill in the user structure for an ECOFF core dump.
  */
 void
 dump_thread(struct pt_regs * pt, struct user * dump)
@@ -373,12 +373,81 @@ dump_thread(struct pt_regs * pt, struct user * dump)
 	memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8);
 }
 
-int
-dump_fpu(struct pt_regs * regs, elf_fpregset_t *r)
+/*
+ * Fill in the user structure for a ELF core dump.
+ */
+void
+dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
 {
 	/* switch stack follows right below pt_regs: */
-	struct switch_stack * sw = ((struct switch_stack *) regs) - 1;
-	memcpy(r, sw->fp, 32 * 8);
+	struct switch_stack * sw = ((struct switch_stack *) pt) - 1;
+
+	dest[ 0] = pt->r0;
+	dest[ 1] = pt->r1;
+	dest[ 2] = pt->r2;
+	dest[ 3] = pt->r3;
+	dest[ 4] = pt->r4;
+	dest[ 5] = pt->r5;
+	dest[ 6] = pt->r6;
+	dest[ 7] = pt->r7;
+	dest[ 8] = pt->r8;
+	dest[ 9] = sw->r9;
+	dest[10] = sw->r10;
+	dest[11] = sw->r11;
+	dest[12] = sw->r12;
+	dest[13] = sw->r13;
+	dest[14] = sw->r14;
+	dest[15] = sw->r15;
+	dest[16] = pt->r16;
+	dest[17] = pt->r17;
+	dest[18] = pt->r18;
+	dest[19] = pt->r19;
+	dest[20] = pt->r20;
+	dest[21] = pt->r21;
+	dest[22] = pt->r22;
+	dest[23] = pt->r23;
+	dest[24] = pt->r24;
+	dest[25] = pt->r25;
+	dest[26] = pt->r26;
+	dest[27] = pt->r27;
+	dest[28] = pt->r28;
+	dest[29] = pt->gp;
+	dest[30] = rdusp();
+	dest[31] = pt->pc;
+
+	/* Once upon a time this was the PS value.  Which is stupid
+	   since that is always 8 for usermode.  Usurped for the more
+	   useful value of the thread's UNIQUE field.  */
+	dest[32] = ti->pcb.unique;
+}
+
+int
+dump_elf_task(elf_greg_t *dest, struct task_struct *task)
+{
+	struct thread_info *ti;
+	struct pt_regs *pt;
+
+	ti = task->thread_info;
+	pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
+
+	dump_elf_thread(dest, pt, ti);
+
+	return 1;
+}
+
+int
+dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
+{
+	struct thread_info *ti;
+	struct pt_regs *pt;
+	struct switch_stack *sw;
+
+	ti = task->thread_info;
+	pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
+	sw = (struct switch_stack *)pt - 1;
+
+	memcpy(dest, sw->fp, 32 * 8);
+
 	return 1;
 }
 

arch/alpha/kernel/proto.h

@@ -53,7 +53,6 @@ extern int marvel_pa_to_nid(unsigned long);
 extern int marvel_cpuid_to_nid(int);
 extern unsigned long marvel_node_mem_start(int);
 extern unsigned long marvel_node_mem_size(int);
-extern int marvel_srmcons_allowed(void);
 extern struct _alpha_agp_info *marvel_agp_info(void);
 struct io7 *marvel_find_io7(int pe);
 struct io7 *marvel_next_io7(struct io7 *prev);
@@ -109,9 +108,15 @@ extern unsigned long wildfire_node_mem_size(int);
 /* setup.c */
 extern unsigned long srm_hae;
 extern int boot_cpuid;
-extern int srmcons_output;
+
+/* srmcons.c */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
 extern void register_srm_console(void);
 extern void unregister_srm_console(void);
+#else
+#define register_srm_console()
+#define unregister_srm_console()
+#endif
 
 /* smp.c */
 extern void setup_smp(void);

arch/alpha/kernel/ptrace.c

@@ -102,7 +102,9 @@ get_reg_addr(struct task_struct * task, unsigned long regno)
 
 	if (regno == 30) {
 		addr = &task->thread_info->pcb.usp;
-	} else if (regno == 31 || regno > 64) {
+	} else if (regno == 65) {
+		addr = &task->thread_info->pcb.unique;
+	} else if (regno == 31 || regno > 65) {
 		zero = 0;
 		addr = &zero;
 	} else {

arch/alpha/kernel/setup.c

@@ -77,18 +77,25 @@ int boot_cpuid;
 
  * "srmcons" specified in the boot command arguments allows us to
  * see kernel messages during the period of time before the true
- * console device is "registered" during console_init(). As of this
- * version (2.4.10), time_init() is the last Alpha-specific code
- * called before console_init(), so we put "unregister" code
- * there to prevent schizophrenic console behavior later... ;-}
+ * console device is "registered" during console_init(). 
+ * As of this version (2.5.59), console_init() will call
+ * disable_early_printk() as the last action before initializing
+ * the console drivers. That's the last possible time srmcons can be 
+ * unregistered without interfering with console behavior.
  *
- * By default, OFF; set it with a bootcommand arg of "srmcons".
+ * By default, OFF; set it with a bootcommand arg of "srmcons" or 
+ * "console=srm". The meaning of these two args is:
+ *     "srmcons"     - early callback prints 
+ *     "console=srm" - full callback based console, including early prints
  */
 int srmcons_output = 0;
 
 /* Enforce a memory size limit; useful for testing. By default, none. */
 unsigned long mem_size_limit = 0;
 
+/* Set AGP GART window size (0 means disabled). */
+unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE;
+
 #ifdef CONFIG_ALPHA_GENERIC
 struct alpha_machine_vector alpha_mv;
 int alpha_using_srm;
@@ -461,57 +468,6 @@ page_is_ram(unsigned long pfn)
 #undef PFN_PHYS
 #undef PFN_MAX
 
-#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
-/*
- *      Manage the SRM callbacks as a "console".
- */
-static struct console srmcons;
-
-void __init register_srm_console(void)
-{
-        register_console(&srmcons);
-}
-
-void __init unregister_srm_console(void)
-{
-        unregister_console(&srmcons);
-}
-
-static void srm_console_write(struct console *co, const char *s,
-                                unsigned count)
-{
-	srm_printk(s);
-}
-
-static kdev_t srm_console_device(struct console *c)
-{
-	/* Huh? */
-        return mk_kdev(TTY_MAJOR, 64 + c->index);
-}
-
-static int __init srm_console_setup(struct console *co, char *options)
-{
-	return 1;
-}
-
-static struct console srmcons = {
-	.name		= "srm0",
-	.write		= srm_console_write,
-	.device		= srm_console_device,
-	.setup		= srm_console_setup,
-	.flags		= CON_PRINTBUFFER | CON_ENABLED, /* fake it out */
-	.index		= -1,
-};
-
-#else
-void __init register_srm_console(void)
-{
-}
-void __init unregister_srm_console(void)
-{
-}
-#endif
-
 void __init
 setup_arch(char **cmdline_p)
 {
@@ -574,7 +530,16 @@ setup_arch(char **cmdline_p)
 			continue;
 		}
 		if (strncmp(p, "srmcons", 7) == 0) {
-			srmcons_output = 1;
+			srmcons_output |= 1;
+			continue;
+		}
+		if (strncmp(p, "console=srm", 11) == 0) {
+			srmcons_output |= 2;
+			continue;
+		}
+		if (strncmp(p, "gartsize=", 9) == 0) {
+			alpha_agpgart_size =
+				get_mem_size_limit(p+9) << PAGE_SHIFT;
 			continue;
 		}
 	}
@@ -585,6 +550,13 @@ setup_arch(char **cmdline_p)
 	/* If we want SRM console printk echoing early, do it now. */
 	if (alpha_using_srm && srmcons_output) {
 		register_srm_console();
+
+		/*
+		 * If "console=srm" was specified, clear the srmcons_output
+		 * flag now so that time.c won't unregister_srm_console
+		 */
+		if (srmcons_output & 2)
+			srmcons_output = 0;
 	}
 
 #ifdef CONFIG_MAGIC_SYSRQ
@@ -688,6 +660,15 @@ setup_arch(char **cmdline_p)
 	paging_init();
 }
 
+void __init
+disable_early_printk(void)
+{
+	if (alpha_using_srm && srmcons_output) {
+		unregister_srm_console();
+		srmcons_output = 0;
+	}
+}
+
 static char sys_unknown[] = "Unknown";
 static char systype_names[][16] = {
 	"0",

arch/alpha/kernel/smp.c

@@ -544,9 +544,6 @@ smp_prepare_cpus(unsigned int max_cpus)
 	smp_tune_scheduling(boot_cpuid);
 	smp_setup_percpu_timer(boot_cpuid);
 
-	/* We have already have the boot CPU online.. */
-	set_bit(boot_cpuid, &cpu_online_map);
-
 	/* Nothing to do on a UP box, or when told not to.  */
 	if (smp_num_probed == 1 || max_cpus == 0) {
 		cpu_present_mask = 1UL << boot_cpuid;
@@ -574,7 +571,11 @@ smp_prepare_cpus(unsigned int max_cpus)
 void __devinit
 smp_prepare_boot_cpu(void)
 {
+	/*
+	 * Mark the boot cpu (current cpu) as both present and online
+	 */ 
 	set_bit(smp_processor_id(), &cpu_present_mask);
+	set_bit(smp_processor_id(), &cpu_online_map);
 }
 
 int __devinit

arch/alpha/kernel/srmcons.c

+/*
+ *	linux/arch/alpha/kernel/srmcons.c
+ *
+ * Callback based driver for SRM Console console device.
+ * (TTY driver and console driver)
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+
+#include <asm/console.h>
+#include <asm/uaccess.h>
+
+
+static spinlock_t srmcons_callback_lock = SPIN_LOCK_UNLOCKED;
+static int srm_is_registered_console = 0;
+
+/* 
+ * The TTY driver
+ */
+#define MAX_SRM_CONSOLE_DEVICES 1	/* only support 1 console device */
+
+static int srmcons_refcount;
+static struct tty_struct *srmcons_table[MAX_SRM_CONSOLE_DEVICES];
+static struct termios *srmcons_termios[MAX_SRM_CONSOLE_DEVICES];
+static struct termios *srmcons_termios_locked[MAX_SRM_CONSOLE_DEVICES];
+
+struct srmcons_private {
+	struct tty_struct *tty;
+	struct timer_list timer;
+	spinlock_t lock;
+};
+
+typedef union _srmcons_result {
+	struct {
+		unsigned long c :61;
+		unsigned long status :3;
+	} bits;
+	long as_long;
+} srmcons_result;
+
+/* called with callback_lock held */
+static int
+srmcons_do_receive_chars(struct tty_struct *tty)
+{
+	srmcons_result result;
+	int count = 0, loops = 0;
+
+	do {
+		result.as_long = callback_getc(0);
+		if (result.bits.status < 2) {
+			tty_insert_flip_char(tty, (char)result.bits.c, 0);
+			count++;
+		}
+	} while((result.bits.status & 1) && (++loops < 10));
+
+	if (count)
+		tty_schedule_flip(tty);
+
+	return count;
+}
+
+static void
+srmcons_receive_chars(unsigned long data)
+{
+	struct srmcons_private *srmconsp = (struct srmcons_private *)data;
+	unsigned long flags;
+	int incr = 10;
+
+	local_irq_save(flags);
+	if (spin_trylock(&srmcons_callback_lock)) {
+		if (!srmcons_do_receive_chars(srmconsp->tty))
+			incr = 100;
+		spin_unlock(&srmcons_callback_lock);
+	} 
+
+	spin_lock(&srmconsp->lock);
+	if (srmconsp->tty) {
+		srmconsp->timer.expires = jiffies + incr;
+		add_timer(&srmconsp->timer);
+	}
+	spin_unlock(&srmconsp->lock);
+
+	local_irq_restore(flags);
+}
+
+/* called with callback_lock held */
+static int
+srmcons_do_write(struct tty_struct *tty, const unsigned char *buf, int count)
+{
+	unsigned char *str_cr = "\r";
+	long c, remaining = count;
+	srmcons_result result;
+	unsigned char *cur;
+	int need_cr;
+
+	for (cur = (unsigned char *)buf; remaining > 0; ) {
+		need_cr = 0;
+		/* 
+		 * Break it up into reasonable size chunks to allow a chance
+		 * for input to get in
+		 */
+		for (c = 0; c < min_t(long, 128L, remaining) && !need_cr; c++)
+			if (cur[c] == '\n')
+				need_cr = 1;
+		
+		while (c > 0) {
+			result.as_long = callback_puts(0, cur, c);
+			c -= result.bits.c;
+			remaining -= result.bits.c;
+			cur += result.bits.c;
+
+			/*
+			 * Check for pending input iff a tty was provided
+			 */
+			if (tty)
+				srmcons_do_receive_chars(tty);
+		}
+
+		while (need_cr) {
+			result.as_long = callback_puts(0, str_cr, 1);
+			if (result.bits.c > 0)
+				need_cr = 0;
+		}
+	}
+	return count;
+}
+
+static int
+srmcons_write(struct tty_struct *tty, int from_user,
+	      const unsigned char *buf, int count)
+{
+	unsigned long flags;
+
+	if (from_user) {
+		unsigned char tmp[512];
+		int ret = 0;
+		size_t c;
+
+		while ((c = count) > 0) {
+			if (c > sizeof(tmp))
+				c = sizeof(tmp);
+			
+			c -= copy_from_user(tmp, buf, c);
+
+			if (!c) { 
+				printk("%s: EFAULT (count %d)\n",
+				       __FUNCTION__, count);
+				return -EFAULT;
+			}
+
+			spin_lock_irqsave(&srmcons_callback_lock, flags);
+			srmcons_do_write(tty, tmp, c);
+			spin_unlock_irqrestore(&srmcons_callback_lock, flags);
+
+			buf += c;
+			count -= c;
+			ret += c;
+		}
+
+		return ret;
+	}
+
+	spin_lock_irqsave(&srmcons_callback_lock, flags);
+	srmcons_do_write(tty, buf, count);
+	spin_unlock_irqrestore(&srmcons_callback_lock, flags);
+
+	return count;
+}
+
+static int
+srmcons_write_room(struct tty_struct *tty)
+{
+	return 512;
+}
+
+static int
+srmcons_chars_in_buffer(struct tty_struct *tty)
+{
+	return 0;
+}
+
+static int
+srmcons_get_private_struct(struct srmcons_private **ps)
+{
+	static struct srmcons_private *srmconsp = NULL;
+	static spinlock_t srmconsp_lock = SPIN_LOCK_UNLOCKED;
+	unsigned long flags;
+	int retval = 0;
+
+	spin_lock_irqsave(&srmconsp_lock, flags);
+
+	do {
+		if (srmconsp != NULL) {
+			*ps = srmconsp;
+			break;
+		}
+
+		srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL);
+		if (srmconsp == NULL) {
+			retval = -ENOMEM;
+			break;
+		}
+
+		srmconsp->tty = NULL;
+		srmconsp->lock = SPIN_LOCK_UNLOCKED;
+		init_timer(&srmconsp->timer);
+
+		*ps = srmconsp;
+	} while(0);
+
+	spin_unlock_irqrestore(&srmconsp_lock, flags);
+
+	return retval;
+}
+
+static int
+srmcons_open(struct tty_struct *tty, struct file *filp)
+{
+	struct srmcons_private *srmconsp;
+	unsigned long flags;
+	int retval;
+
+	retval = srmcons_get_private_struct(&srmconsp);
+	if (retval)
+		return retval;
+
+	spin_lock_irqsave(&srmconsp->lock, flags);
+
+	if (!srmconsp->tty) {
+		tty->driver_data = srmconsp;
+
+		srmconsp->tty = tty;
+		srmconsp->timer.function = srmcons_receive_chars;
+		srmconsp->timer.data = (unsigned long)srmconsp;
+		srmconsp->timer.expires = jiffies + 10;
+		add_timer(&srmconsp->timer);
+	}
+
+	spin_unlock_irqrestore(&srmconsp->lock, flags);
+
+	return 0;
+}
+
+static void
+srmcons_close(struct tty_struct *tty, struct file *filp)
+{
+	struct srmcons_private *srmconsp = tty->driver_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&srmconsp->lock, flags);
+
+	if (tty->count == 1) {
+		srmconsp->tty = NULL;
+		del_timer(&srmconsp->timer);
+	}
+
+	spin_unlock_irqrestore(&srmconsp->lock, flags);
+}
+
+
+static struct tty_driver srmcons_driver = {
+	.driver_name	= "srm",
+	.name		= "srm",
+	.magic		= TTY_DRIVER_MAGIC,
+	.major		= 0, 	/* dynamic */
+	.minor_start	= 0,
+	.num		= MAX_SRM_CONSOLE_DEVICES,
+	.type		= TTY_DRIVER_TYPE_SYSTEM,
+	.subtype	= SYSTEM_TYPE_SYSCONS,
+
+	.table		= srmcons_table,
+	.termios	= srmcons_termios,
+	.termios_locked	= srmcons_termios_locked,
+	.refcount	= &srmcons_refcount,
+
+	.open		= srmcons_open,
+	.close		= srmcons_close,
+	.write		= srmcons_write,
+	.write_room	= srmcons_write_room,
+	.chars_in_buffer= srmcons_chars_in_buffer,
+};
+
+static int __init
+srmcons_init(void)
+{
+	if (srm_is_registered_console) {
+		srmcons_driver.init_termios = tty_std_termios;
+		return tty_register_driver(&srmcons_driver);
+	}
+
+	return -ENODEV;
+}
+
+module_init(srmcons_init);
+
+
+/*
+ * The console driver
+ */
+static void
+srm_console_write(struct console *co, const char *s, unsigned count)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&srmcons_callback_lock, flags);
+	srmcons_do_write(NULL, s, count);
+	spin_unlock_irqrestore(&srmcons_callback_lock, flags);
+}
+
+static kdev_t
+srm_console_device(struct console *co)
+{
+	return mk_kdev(srmcons_driver.major,
+		       srmcons_driver.minor_start + co->index);
+}
+
+static int __init
+srm_console_setup(struct console *co, char *options)
+{
+	return 0;
+}
+
+static struct console srmcons = {
+	.name		= "srm",
+	.write		= srm_console_write,
+	.device		= srm_console_device,
+	.setup		= srm_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+};
+
+void __init
+register_srm_console(void)
+{
+	if (!srm_is_registered_console) {
+		callback_open_console();
+		register_console(&srmcons);
+		srm_is_registered_console = 1;
+	}
+}
+
+void __init
+unregister_srm_console(void)
+{
+	if (srm_is_registered_console) {
+		callback_close_console();
+		unregister_console(&srmcons);
+		srm_is_registered_console = 0;
+	}
+}

arch/alpha/kernel/sys_nautilus.c

@@ -31,6 +31,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/reboot.h>
+#include <linux/bootmem.h>
 
 #include <asm/ptrace.h>
 #include <asm/system.h>
@@ -174,6 +175,70 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
 	mb();
 }
 
+extern void free_reserved_mem(void *, void *);
+
+void __init
+nautilus_init_pci(void)
+{
+	struct pci_controller *hose = hose_head;
+	struct pci_bus *bus;
+	struct pci_dev *irongate;
+	unsigned long saved_io_start, saved_io_end;
+	unsigned long saved_mem_start, saved_mem_end;
+	unsigned long bus_align, bus_size, pci_mem;
+	unsigned long memtop = max_low_pfn << PAGE_SHIFT;
+
+	/* Scan our single hose.  */
+	bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
+	hose->bus = bus;
+	hose->last_busno = bus->subordinate;
+
+	/* We're going to size the root bus, so we must
+	   - have a non-NULL PCI device associated with the bus
+	   - preserve hose resources. */
+	irongate = pci_find_slot(0, 0);
+	bus->self = irongate;
+	saved_io_start = bus->resource[0]->start;
+	saved_io_end = bus->resource[0]->end;
+	saved_mem_start = bus->resource[1]->start;
+	saved_mem_end = bus->resource[1]->end;
+
+	pci_bus_size_bridges(bus);
+
+	/* Don't care about IO. */
+	bus->resource[0]->start = saved_io_start;
+	bus->resource[0]->end = saved_io_end;
+
+	bus_align = bus->resource[1]->start;
+	bus_size = bus->resource[1]->end + 1 - bus_align;
+	/* Align to 16Mb. */
+	if (bus_align < 0x1000000UL)
+		bus_align = 0x1000000UL;
+
+	/* Restore hose MEM resource. */
+	bus->resource[1]->start = saved_mem_start;
+	bus->resource[1]->end = saved_mem_end;
+
+	pci_mem = (0x100000000UL - bus_size) & -bus_align;
+
+	if (pci_mem < memtop && pci_mem > alpha_mv.min_mem_address) {
+		free_reserved_mem(__va(alpha_mv.min_mem_address),
+				  __va(pci_mem));
+		printk("nautilus_init_arch: %ldk freed\n",
+			(pci_mem - alpha_mv.min_mem_address) >> 10);
+	}
+
+	alpha_mv.min_mem_address = pci_mem;
+	if ((IRONGATE0->dev_vendor >> 16) > 0x7006)	/* Albacore? */
+		IRONGATE0->pci_mem = pci_mem;
+
+	pci_bus_assign_resources(bus);
+
+	/* To break the loop in common_swizzle() */
+	bus->self = NULL;
+
+	pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
+}
 
 /*
  * The System Vectors
@@ -196,7 +261,7 @@ struct alpha_machine_vector nautilus_mv __initmv = {
 	.init_arch		= irongate_init_arch,
 	.init_irq		= nautilus_init_irq,
 	.init_rtc		= common_init_rtc,
-	.init_pci		= common_init_pci,
+	.init_pci		= nautilus_init_pci,
 	.kill_arch		= nautilus_kill_arch,
 	.pci_map_irq		= nautilus_map_irq,
 	.pci_swizzle		= common_swizzle,

arch/alpha/kernel/time.c

@@ -383,21 +383,6 @@ time_init(void)
 
 	/* Startup the timer source. */
 	alpha_mv.init_rtc();
-
-	/*
-	 * If we had wanted SRM console printk echoing early, undo it now.
-	 *
-	 * "srmcons" specified in the boot command arguments allows us to
-	 * see kernel messages during the period of time before the true
-	 * console device is "registered" during console_init(). As of this
-	 * version (2.4.10), time_init() is the last Alpha-specific code
-	 * called before console_init(), so we put this "unregister" code
-	 * here to prevent schizophrenic console behavior later... ;-}
-	 */
-	if (alpha_using_srm && srmcons_output) {
-		unregister_srm_console();
-		srmcons_output = 0;
-	}
 }
 
 /*

include/asm-alpha/core_irongate.h

@@ -50,13 +50,14 @@ typedef struct {
 
 	igcsr32 bacsr10;		/* 0x40 - base address chip selects */
 	igcsr32 bacsr32;		/* 0x44 - base address chip selects */
-	igcsr32 bacsr54;		/* 0x48 - base address chip selects */
+	igcsr32 bacsr54_eccms761;	/* 0x48 - 751: base addr. chip selects
+						  761: ECC, mode/status */
 
 	igcsr32 rsrvd2[1];		/* 0x4C-0x4F reserved */
 
 	igcsr32 drammap;		/* 0x50 - address mapping control */
 	igcsr32 dramtm;			/* 0x54 - timing, driver strength */
-	igcsr32 dramms;			/* 0x58 - ECC, mode/status */
+	igcsr32 dramms;			/* 0x58 - DRAM mode/status */
 
 	igcsr32 rsrvd3[1];		/* 0x5C-0x5F reserved */
 
@@ -73,7 +74,10 @@ typedef struct {
 	igcsr32 pciarb;			/* 0x84 - PCI arbitration control */
 	igcsr32 pcicfg;			/* 0x88 - PCI config status */
 
-	igcsr32 rsrvd6[5];		/* 0x8C-0x9F reserved */
+	igcsr32 rsrvd6[4];		/* 0x8C-0x9B reserved */
+
+	igcsr32 pci_mem;		/* 0x9C - PCI top of memory,
+						  761 only */
 
 	/* AGP (bus 1) control registers */
 	igcsr32 agpcap;			/* 0xA0 - AGP Capability Identifier */
@@ -102,6 +106,7 @@ typedef struct {
 
 } Irongate1;
 
+extern igcsr32 *IronECC;
 
 /*
  * Memory spaces:

include/asm-alpha/elf.h

@@ -52,53 +52,25 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
 #define ELF_PLAT_INIT(_r)       _r->r0 = 0
 
-/* Use the same format as the OSF/1 procfs interface.  The register
-   layout is sane.  However, since dump_thread() creates the funky
-   layout that ECOFF coredumps want, we need to undo that layout here.
-   Eventually, it would be nice if the ECOFF core-dump had to do the
-   translation, then ELF_CORE_COPY_REGS() would become trivial and
-   faster.  */
-
-#define ELF_CORE_COPY_REGS(_dest,_regs)					\
-{									\
-	extern void dump_thread(struct pt_regs *, struct user *);	\
-	struct user _dump;						\
-									\
-	dump_thread(_regs, &_dump);					\
-	_dest[ 0] = _dump.regs[EF_V0];					\
-	_dest[ 1] = _dump.regs[EF_T0];					\
-	_dest[ 2] = _dump.regs[EF_T1];					\
-	_dest[ 3] = _dump.regs[EF_T2];					\
-	_dest[ 4] = _dump.regs[EF_T3];					\
-	_dest[ 5] = _dump.regs[EF_T4];					\
-	_dest[ 6] = _dump.regs[EF_T5];					\
-	_dest[ 7] = _dump.regs[EF_T6];					\
-	_dest[ 8] = _dump.regs[EF_T7];					\
-	_dest[ 9] = _dump.regs[EF_S0];					\
-	_dest[10] = _dump.regs[EF_S1];					\
-	_dest[11] = _dump.regs[EF_S2];					\
-	_dest[12] = _dump.regs[EF_S3];					\
-	_dest[13] = _dump.regs[EF_S4];					\
-	_dest[14] = _dump.regs[EF_S5];					\
-	_dest[15] = _dump.regs[EF_S6];					\
-	_dest[16] = _dump.regs[EF_A0];					\
-	_dest[17] = _dump.regs[EF_A1];					\
-	_dest[18] = _dump.regs[EF_A2];					\
-	_dest[19] = _dump.regs[EF_A3];					\
-	_dest[20] = _dump.regs[EF_A4];					\
-	_dest[21] = _dump.regs[EF_A5];					\
-	_dest[22] = _dump.regs[EF_T8];					\
-	_dest[23] = _dump.regs[EF_T9];					\
-	_dest[24] = _dump.regs[EF_T10];					\
-	_dest[25] = _dump.regs[EF_T11];					\
-	_dest[26] = _dump.regs[EF_RA];					\
-	_dest[27] = _dump.regs[EF_T12];					\
-	_dest[28] = _dump.regs[EF_AT];					\
-	_dest[29] = _dump.regs[EF_GP];					\
-	_dest[30] = _dump.regs[EF_SP];					\
-	_dest[31] = _dump.regs[EF_PC];	/* store PC here */		\
-	_dest[32] = _dump.regs[EF_PS];					\
-}
+/* The registers are layed out in pt_regs for PAL and syscall
+   convenience.  Re-order them for the linear elf_gregset_t.  */
+
+extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt,
+			    struct thread_info *ti);
+#define ELF_CORE_COPY_REGS(DEST, REGS) \
+	dump_elf_thread(DEST, REGS, current_thread_info());
+
+/* Similar, but for a thread other than current.  */
+
+extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \
+	dump_elf_task(*(DEST), TASK)
+
+/* Similar, but for the FP registers.  */
+
+extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_FPREGS(TASK, DEST) \
+	dump_elf_task_fp(*(DEST), TASK)
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This is trivial on Alpha, 

include/asm-alpha/topology.h

@@ -43,6 +43,9 @@ static inline int node_to_cpumask(int node)
 # define node_to_memblk(node)		(node)
 # define memblk_to_node(memblk)	(memblk)
 
+/* Cross-node load balancing interval. */
+# define NODE_BALANCE_RATE 10
+
 #else /* CONFIG_NUMA */
 # include <asm-generic/topology.h>
 #endif /* !CONFIG_NUMA */