Merge with Linux 2.3.9.

19 files changed, 140 insertions, 100 deletions

diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 1be8c322a..635dd91b5 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -56,16 +56,16 @@ ppc_defs.h: mk_defs.c ppc_defs.head \
 		$(TOPDIR)/include/asm/processor.h \
 		$(TOPDIR)/include/asm/pgtable.h \
 		$(TOPDIR)/include/asm/ptrace.h
-	$(CC) ${CFLAGS} -S mk_defs.c
+	$(CC) $(CFLAGS) -S mk_defs.c
 	cp ppc_defs.head ppc_defs.h
 	grep '^#define' mk_defs.s >>ppc_defs.h
 	rm mk_defs.s
 
 find_name : find_name.c
-	$(HOSTCC) -o find_name find_name.c
+	$(HOSTCC) $(HOSTCFLAGS) -o find_name find_name.c
 
 checks: checks.c
-	$(HOSTCC) ${CFLAGS} -D__KERNEL__ -o checks checks.c
+	$(HOSTCC) $(HOSTCFLAGS) -D__KERNEL__ -o checks checks.c
 	./checks
 
 include $(TOPDIR)/Rules.make
diff --git a/arch/ppc/kernel/chrp_pci.c b/arch/ppc/kernel/chrp_pci.c
index 575b65918..c82671947 100644
--- a/arch/ppc/kernel/chrp_pci.c
+++ b/arch/ppc/kernel/chrp_pci.c
@@ -354,7 +354,8 @@ chrp_setup_pci_ptrs(void)
                 }
                 else
                 {
-			if ( !strncmp("IBM,7043-150", get_property(find_path_device("/"), "name", NULL),12) )
+			if ( !strncmp("IBM,7043-150", get_property(find_path_device("/"), "name", NULL),12) ||
+			     !strncmp("IBM,7046-155", get_property(find_path_device("/"), "name", NULL),12) )
 			{
 				pci_dram_offset = 0;
 				isa_mem_base = 0x80000000;
diff --git a/arch/ppc/kernel/chrp_setup.c b/arch/ppc/kernel/chrp_setup.c
index 25c262d0e..1653ef0d7 100644
--- a/arch/ppc/kernel/chrp_setup.c
+++ b/arch/ppc/kernel/chrp_setup.c
@@ -48,6 +48,7 @@
 #include <asm/irq.h>
 #include <asm/adb.h>
 #include <asm/hydra.h>
+#include <asm/keyboard.h>
 
 #include "time.h"
 #include "local_irq.h"
@@ -66,7 +67,6 @@ extern volatile unsigned char *chrp_int_ack_special;
 
 unsigned long chrp_get_rtc_time(void);
 int chrp_set_rtc_time(unsigned long nowtime);
-unsigned long rtas_event_scan_rate = 0, rtas_event_scan_ct = 0;
 void chrp_calibrate_decr(void);
 void chrp_time_init(void);
 
@@ -281,7 +281,7 @@ __initfunc(void
 	/*
 	 *  Fix the Super I/O configuration
 	 */
-	/*sio_init();*/
+	sio_init();
 #ifdef CONFIG_DUMMY_CONSOLE
 	conswitchp = &dummy_con;
 #endif
@@ -295,15 +295,16 @@ __initfunc(void
 		struct property *p;
 		device = find_devices("rtas");
 		for ( p = device->properties;
-		      strncmp(p->name, "rtas-event-scan-rate", 20) && p ;
+		      p && strncmp(p->name, "rtas-event-scan-rate", 20);
 		      p = p->next )
 			/* nothing */ ;
 		if ( p && *(unsigned long *)p->value )
 		{
-			rtas_event_scan_rate = (HZ/(*(unsigned long *)p->value)*30)-1;
-			rtas_event_scan_ct = 1;
+			ppc_md.heartbeat = chrp_event_scan;
+			ppc_md.heartbeat_reset = (HZ/(*(unsigned long *)p->value)*30)-1;
+			ppc_md.heartbeat_count = 1;
 			printk("RTAS Event Scan Rate: %lu (%lu jiffies)\n",
-			       *(unsigned long *)p->value, rtas_event_scan_rate );
+			       *(unsigned long *)p->value, ppc_md.heartbeat_reset );
 		}
 	}
 }
@@ -312,11 +313,8 @@ void
 chrp_event_scan(void)
 {
 	unsigned char log[1024];
-	if ( rtas_event_scan_rate && (rtas_event_scan_ct-- <= 0) )
-	{
-		call_rtas( "event-scan", 4, 1, NULL, 0x0, 1, __pa(log), 1024 );
-		rtas_event_scan_ct = rtas_event_scan_rate;
-	}
+	call_rtas( "event-scan", 4, 1, NULL, 0x0, 1, __pa(log), 1024 );
+	ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
 }
 	
 void
@@ -331,7 +329,7 @@ void
 chrp_power_off(void)
 {
 	/* allow power on only with power button press */
-#define	PWR_FIELD(x) (0x8000000000000000 >> ((x)-96))
+#define	PWR_FIELD(x) (0x8000000000000000ULL >> ((x)-96))
 	printk("RTAS power-off returned %d\n",
 	       call_rtas("power-off", 2, 1, NULL,
 			 ((PWR_FIELD(96)|PWR_FIELD(97))>>32)&0xffffffff,
@@ -632,7 +630,8 @@ __initfunc(void
 		ppc_md.kbd_leds          = pckbd_leds;
 		ppc_md.kbd_init_hw       = pckbd_init_hw;
 #ifdef CONFIG_MAGIC_SYSRQ
-		ppc_md.kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+		ppc_md.ppc_kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+		SYSRQ_KEY = 0x54;
 #endif		
 	}
 	else
@@ -644,7 +643,8 @@ __initfunc(void
 		ppc_md.kbd_leds          = mackbd_leds;
 		ppc_md.kbd_init_hw       = mackbd_init_hw;
 #ifdef CONFIG_MAGIC_SYSRQ
-		ppc_md.kbd_sysrq_xlate	 = mackbd_sysrq_xlate;
+		ppc_md.ppc_kbd_sysrq_xlate	 = mackbd_sysrq_xlate;
+		SYSRQ_KEY = 0x69;
 #endif		
 	}
 #else
@@ -655,7 +655,8 @@ __initfunc(void
 	ppc_md.kbd_leds          = pckbd_leds;
 	ppc_md.kbd_init_hw       = pckbd_init_hw;
 #ifdef CONFIG_MAGIC_SYSRQ
-	ppc_md.kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+	ppc_md.ppc_kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+	SYSRQ_KEY = 0x54;
 #endif
 #endif
 #endif
@@ -665,9 +666,9 @@ __initfunc(void
         ppc_ide_md.outsw = chrp_ide_outsw;
         ppc_ide_md.default_irq = chrp_ide_default_irq;
         ppc_ide_md.default_io_base = chrp_ide_default_io_base;
-        ppc_ide_md.check_region = chrp_ide_check_region;
-        ppc_ide_md.request_region = chrp_ide_request_region;
-        ppc_ide_md.release_region = chrp_ide_release_region;
+        ppc_ide_md.ide_check_region = chrp_ide_check_region;
+        ppc_ide_md.ide_request_region = chrp_ide_request_region;
+        ppc_ide_md.ide_release_region = chrp_ide_release_region;
         ppc_ide_md.fix_driveid = chrp_ide_fix_driveid;
         ppc_ide_md.ide_init_hwif = chrp_ide_init_hwif_ports;
 
diff --git a/arch/ppc/kernel/idle.c b/arch/ppc/kernel/idle.c
index 38ac7d108..9d8d94e51 100644
--- a/arch/ppc/kernel/idle.c
+++ b/arch/ppc/kernel/idle.c
@@ -298,7 +298,7 @@ void power_save(void)
 	case 7:			/* 603ev */
 	case 8:			/* 750 */
 		save_flags(msr);
-		cli();
+		__cli();
 		if (!current->need_resched) {
 			asm("mfspr %0,1008" : "=r" (hid0) :);
 			hid0 &= ~(HID0_NAP | HID0_SLEEP | HID0_DOZE);
diff --git a/arch/ppc/kernel/irq.c b/arch/ppc/kernel/irq.c
index 732a87f69..b9cdca892 100644
--- a/arch/ppc/kernel/irq.c
+++ b/arch/ppc/kernel/irq.c
@@ -189,6 +189,12 @@ void free_irq(unsigned int irq, void *dev_id)
 	request_irq(irq, NULL, 0, NULL, dev_id);
 }
 
+/* XXX should implement irq disable depth like on intel */
+void disable_irq_nosync(unsigned int irq_nr)
+{
+	mask_irq(irq_nr);
+}
+
 void disable_irq(unsigned int irq_nr)
 {
 	mask_irq(irq_nr);
diff --git a/arch/ppc/kernel/mbx_setup.c b/arch/ppc/kernel/mbx_setup.c
index 40f016fb5..fdb9c11e0 100644
--- a/arch/ppc/kernel/mbx_setup.c
+++ b/arch/ppc/kernel/mbx_setup.c
@@ -473,9 +473,9 @@ mbx_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_ide_md.outsw = mbx_ide_outsw;
         ppc_ide_md.default_irq = mbx_ide_default_irq;
         ppc_ide_md.default_io_base = mbx_ide_default_io_base;
-        ppc_ide_md.check_region = mbx_ide_check_region;
-        ppc_ide_md.request_region = mbx_ide_request_region;
-        ppc_ide_md.release_region = mbx_ide_release_region;
+        ppc_ide_md.ide_check_region = mbx_ide_check_region;
+        ppc_ide_md.ide_request_region = mbx_ide_request_region;
+        ppc_ide_md.ide_release_region = mbx_ide_release_region;
         ppc_ide_md.fix_driveid = mbx_ide_fix_driveid;
         ppc_ide_md.ide_init_hwif = mbx_ide_init_hwif_ports;
 
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 7e2db0843..0caf06a3b 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -650,17 +650,19 @@ __clear_msr_me:
 
 /*
  * Create a kernel thread
- *   __kernel_thread(flags, fn, arg)
+ *   kernel_thread(fn, arg, flags)
  */
-_GLOBAL(__kernel_thread)
+_GLOBAL(kernel_thread)
+	mr	r6,r3		/* function */
+	ori	r3,r5,CLONE_VM	/* flags */
 	li	r0,__NR_clone
 	sc
 	cmpi	0,r3,0		/* parent or child? */
 	bnelr			/* return if parent */
 	li	r0,0		/* clear out p->tss.regs */
 	stw	r0,TSS+PT_REGS(r2)	/* since we don't have user ctx */
-	mtlr	r4              /* fn addr in lr */
-	mr	r3,r5	        /* load arg and call fn */
+	mtlr	r6              /* fn addr in lr */
+	mr	r3,r4	        /* load arg and call fn */
 	blrl
 	li	r0,__NR_exit	/* exit after child exits */
         li	r3,0
@@ -866,7 +868,7 @@ sys_call_table:
 	.long sys_getresuid	/* 165 */
 	.long sys_query_module
 	.long sys_poll
-#ifdef CONFIG_NFS	
+#ifdef CONFIG_NFSD	
 	.long sys_nfsservctl
 #else
 	.long sys_ni_syscall
diff --git a/arch/ppc/kernel/mk_defs.c b/arch/ppc/kernel/mk_defs.c
index b66ccffa8..a3977193a 100644
--- a/arch/ppc/kernel/mk_defs.c
+++ b/arch/ppc/kernel/mk_defs.c
@@ -97,5 +97,6 @@ main(void)
 	DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
 	DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
 	DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
+	DEFINE(CLONE_VM, CLONE_VM);
 	return 0;
 }
diff --git a/arch/ppc/kernel/pmac_setup.c b/arch/ppc/kernel/pmac_setup.c
index afa1227a7..ffdc316ed 100644
--- a/arch/ppc/kernel/pmac_setup.c
+++ b/arch/ppc/kernel/pmac_setup.c
@@ -42,6 +42,7 @@
 #include <linux/vt_kern.h>
 #include <linux/console.h>
 #include <linux/ide.h>
+#include <linux/pci.h>
 #include <asm/prom.h>
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -56,6 +57,7 @@
 #include <asm/feature.h>
 #include <asm/ide.h>
 #include <asm/machdep.h>
+#include <asm/keyboard.h>
 
 #include "time.h"
 #include "local_irq.h"
@@ -98,6 +100,7 @@ extern char saved_command_line[];
 
 extern void zs_kgdb_hook(int tty_num);
 static void ohare_init(void);
+static void init_p2pbridge(void);
 
 __pmac
 int
@@ -255,6 +258,7 @@ pmac_setup_arch(unsigned long *memory_start_p, unsigned long *memory_end_p))
 	ohare_init();
 
 	*memory_start_p = pmac_find_bridges(*memory_start_p, *memory_end_p);
+	init_p2pbridge();
 
 	/* Checks "l2cr-value" property in the registry */
 	if ( (_get_PVR() >> 16) == 8) {
@@ -299,6 +303,31 @@ pmac_setup_arch(unsigned long *memory_start_p, unsigned long *memory_end_p))
 		ROOT_DEV = to_kdev_t(DEFAULT_ROOT_DEVICE);
 }
 
+/*
+ * Tweak the PCI-PCI bridge chip on the blue & white G3s.
+ */
+__initfunc(static void init_p2pbridge(void))
+{
+	struct device_node *p2pbridge;
+	unsigned char bus, devfn;
+	unsigned short val;
+
+	/* XXX it would be better here to identify the specific
+	   PCI-PCI bridge chip we have. */
+	if ((p2pbridge = find_devices("pci-bridge")) == 0
+	    || p2pbridge->parent == NULL
+	    || strcmp(p2pbridge->parent->name, "pci") != 0)
+		return;
+
+	if (pci_device_loc(p2pbridge, &bus, &devfn) < 0)
+		return;
+
+	pcibios_read_config_word(bus, devfn, PCI_BRIDGE_CONTROL, &val);
+	val &= ~PCI_BRIDGE_CTL_MASTER_ABORT;
+	pcibios_write_config_word(bus, devfn, PCI_BRIDGE_CONTROL, val);
+	pcibios_read_config_word(bus, devfn, PCI_BRIDGE_CONTROL, &val);
+}
+
 __initfunc(static void ohare_init(void))
 {
 	/*
@@ -488,13 +517,13 @@ pmac_halt(void)
 void
 pmac_ide_insw(ide_ioreg_t port, void *buf, int ns)
 {
-	ide_insw(port, buf, ns);
+	_insw_ns(port+_IO_BASE, buf, ns);
 }
 
 void
 pmac_ide_outsw(ide_ioreg_t port, void *buf, int ns)
 {
-	ide_outsw(port, buf, ns);
+	_outsw_ns(port+_IO_BASE, buf, ns);
 }
 
 int
@@ -596,7 +625,8 @@ pmac_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	ppc_md.kbd_leds          = mackbd_leds;
 	ppc_md.kbd_init_hw       = mackbd_init_hw;
 #ifdef CONFIG_MAGIC_SYSRQ
-	ppc_md.kbd_sysrq_xlate	 = mackbd_sysrq_xlate;
+	ppc_md.ppc_kbd_sysrq_xlate	 = mackbd_sysrq_xlate;
+	SYSRQ_KEY = 0x69;
 #endif
 #endif
 
@@ -605,13 +635,13 @@ pmac_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_ide_md.outsw = pmac_ide_outsw;
         ppc_ide_md.default_irq = pmac_ide_default_irq;
         ppc_ide_md.default_io_base = pmac_ide_default_io_base;
-        ppc_ide_md.check_region = pmac_ide_check_region;
-        ppc_ide_md.request_region = pmac_ide_request_region;
-        ppc_ide_md.release_region = pmac_ide_release_region;
+        ppc_ide_md.ide_check_region = pmac_ide_check_region;
+        ppc_ide_md.ide_request_region = pmac_ide_request_region;
+        ppc_ide_md.ide_release_region = pmac_ide_release_region;
         ppc_ide_md.fix_driveid = pmac_ide_fix_driveid;
         ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports;
 
-        ppc_ide_md.io_base = 0;
+        ppc_ide_md.io_base = _IO_BASE;	/* actually too early for this :-( */
 #endif		
 }
 
diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c
index 30123c076..a2aab8354 100644
--- a/arch/ppc/kernel/ppc_htab.c
+++ b/arch/ppc/kernel/ppc_htab.c
@@ -74,11 +74,14 @@ struct inode_operations proc_ppc_htab_inode_operations = {
     NULL,	    /* rename	   */
     NULL,	    /* readlink	   */
     NULL,	    /* follow_link */
+    NULL,	    /* get_block   */
     NULL,	    /* readpage	   */
     NULL,	    /* writepage   */
-    NULL,	    /* bmap	   */
+    NULL,	    /* flushpage   */
     NULL,	    /* truncate	   */
-    NULL	    /* permission  */
+    NULL,	    /* permission  */
+    NULL,	    /* smap        */
+    NULL	    /* revalidate  */
 };
 
 /* these will go into processor.h when I'm done debugging -- Cort */
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 36a68ffd6..1d1340331 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -31,8 +31,8 @@
 #include <asm/dma.h>
 #include <asm/machdep.h>
 
-#define __KERNEL_SYSCALLS__
-#include <linux/unistd.h>
+/* Tell string.h we don't want memcpy etc. as cpp defines */
+#define EXPORT_SYMTAB_STROPS
 
 extern void transfer_to_handler(void);
 extern void int_return(void);
@@ -47,7 +47,6 @@ extern atomic_t ppc_n_lost_interrupts;
 extern void do_lost_interrupts(unsigned long);
 extern int do_signal(sigset_t *, struct pt_regs *);
 
-asmlinkage long long __ashrdi3(long long, int);
 asmlinkage int abs(int);
 
 EXPORT_SYMBOL(clear_page);
@@ -66,6 +65,7 @@ EXPORT_SYMBOL(ppc_n_lost_interrupts);
 EXPORT_SYMBOL(do_lost_interrupts);
 EXPORT_SYMBOL(enable_irq);
 EXPORT_SYMBOL(disable_irq);
+EXPORT_SYMBOL(disable_irq_nosync);
 EXPORT_SYMBOL(ppc_local_irq_count);
 EXPORT_SYMBOL(ppc_local_bh_count);
 
@@ -112,11 +112,6 @@ EXPORT_SYMBOL(strnlen);
 EXPORT_SYMBOL(strspn);
 EXPORT_SYMBOL(strcmp);
 EXPORT_SYMBOL(strncmp);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memscan);
-EXPORT_SYMBOL(memcmp);
 
 /* EXPORT_SYMBOL(csum_partial); already in net/netsyms.c */
 EXPORT_SYMBOL(csum_partial_copy_generic);
@@ -153,9 +148,10 @@ EXPORT_SYMBOL(iounmap);
 
 EXPORT_SYMBOL(ide_insw);
 EXPORT_SYMBOL(ide_outsw);
+EXPORT_SYMBOL(ppc_ide_md);
 
 EXPORT_SYMBOL(start_thread);
-EXPORT_SYMBOL(__kernel_thread);
+EXPORT_SYMBOL(kernel_thread);
 
 EXPORT_SYMBOL(__cli);
 EXPORT_SYMBOL(__sti);
@@ -215,11 +211,11 @@ EXPORT_SYMBOL(nvram_read_byte);
 EXPORT_SYMBOL(nvram_write_byte);
 #endif /* CONFIG_PMAC */
 
+EXPORT_SYMBOL_NOVERS(memcpy);
+EXPORT_SYMBOL_NOVERS(memset);
+EXPORT_SYMBOL_NOVERS(memmove);
+EXPORT_SYMBOL_NOVERS(memscan);
+EXPORT_SYMBOL_NOVERS(memcmp);
+
 EXPORT_SYMBOL(abs);
 EXPORT_SYMBOL(device_is_compatible);
-
-/* The following are special because they're not called
-   explicitly (the C compiler generates them).  Fortunately,
-   their interface isn't gonna change any time soon now, so
-   it's OK to leave it out of version control.  */
-EXPORT_SYMBOL_NOVERS(__ashrdi3);
diff --git a/arch/ppc/kernel/prep_setup.c b/arch/ppc/kernel/prep_setup.c
index 45c64837c..05d46a698 100644
--- a/arch/ppc/kernel/prep_setup.c
+++ b/arch/ppc/kernel/prep_setup.c
@@ -48,7 +48,7 @@
 #include <asm/mk48t59.h>
 #include <asm/prep_nvram.h>
 #include <asm/raven.h>
-
+#include <asm/keyboard.h>
 
 #include "time.h"
 #include "local_irq.h"
@@ -825,9 +825,9 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_ide_md.outsw = prep_ide_outsw;
         ppc_ide_md.default_irq = prep_ide_default_irq;
         ppc_ide_md.default_io_base = prep_ide_default_io_base;
-        ppc_ide_md.check_region = prep_ide_check_region;
-        ppc_ide_md.request_region = prep_ide_request_region;
-        ppc_ide_md.release_region = prep_ide_release_region;
+        ppc_ide_md.ide_check_region = prep_ide_check_region;
+        ppc_ide_md.ide_request_region = prep_ide_request_region;
+        ppc_ide_md.ide_release_region = prep_ide_release_region;
         ppc_ide_md.fix_driveid = prep_ide_fix_driveid;
         ppc_ide_md.ide_init_hwif = prep_ide_init_hwif_ports;
 #endif		
@@ -841,7 +841,8 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	ppc_md.kbd_leds          = pckbd_leds;
 	ppc_md.kbd_init_hw       = pckbd_init_hw;
 #ifdef CONFIG_MAGIC_SYSRQ
-	ppc_md.kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+	ppc_md.ppc_kbd_sysrq_xlate	 = pckbd_sysrq_xlate;
+	SYSRQ_KEY = 0x54;
 #endif
 #endif
 }
diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
index 0147d427d..dcf6d9b9d 100644
--- a/arch/ppc/kernel/process.c
+++ b/arch/ppc/kernel/process.c
@@ -306,6 +306,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	p->tss.fpscr = current->tss.fpscr;
 	childregs->msr &= ~MSR_FP;
 
+	p->processor = 0;
 #ifdef __SMP__
 	p->last_processor = NO_PROC_ID;
 #endif /* __SMP__ */
diff --git a/arch/ppc/kernel/prom.c b/arch/ppc/kernel/prom.c
index 4c275dc9d..9c0efa754 100644
--- a/arch/ppc/kernel/prom.c
+++ b/arch/ppc/kernel/prom.c
@@ -338,7 +338,9 @@ prom_init(int r3, int r4, prom_entry pp)
 			 */
 			model = (char *) early_get_property
 				(r4 + bi->deviceTreeOffset, 4, RELOC("model"));
-			if (model && strcmp(model, RELOC("iMac,1")) == 0) {
+			if (model
+			    && (strcmp(model, RELOC("iMac,1")) == 0
+				|| strcmp(model, RELOC("PowerMac1,1")) == 0)) {
 				out_le32((unsigned *)0x80880008, 1);	/* XXX */
 			}
 		}
@@ -887,11 +889,11 @@ interpret_pci_props(struct device_node *np, unsigned long mem_start)
 	    && (imp = (struct pci_intr_map *)
 		get_property(np->parent, "interrupt-map", &ml)) != 0
 	    && (ip = (int *) get_property(np, "interrupts", &l)) != 0) {
-		unsigned int busdevfn = pci_addrs[0].addr.a_hi & 0xffff00;
+		unsigned int devfn = pci_addrs[0].addr.a_hi & 0xff00;
 		np->n_intrs = 0;
 		np->intrs = (struct interrupt_info *) mem_start;
 		for (i = 0; (ml -= sizeof(struct pci_intr_map)) >= 0; ++i) {
-			if (imp[i].addr.a_hi == busdevfn) {
+			if (imp[i].addr.a_hi == devfn) {
 				np->intrs[np->n_intrs].line = imp[i].intr;
 				np->intrs[np->n_intrs].sense = 0;
 				++np->n_intrs;
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 3fdb35718..a0d67c98e 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -80,6 +80,9 @@ int _machine = 0;
 int have_of = 0;
 int is_prep = 0;
 int is_chrp = 0;
+#ifdef CONFIG_MAGIC_SYSRQ
+unsigned long SYSRQ_KEY;
+#endif /* CONFIG_MAGIC_SYSRQ */
 /* For MTX/MVME boards.. with Raven/Falcon Chipset
       Real close to CHRP, but boot like PReP (via PPCbug)
       There's probably a nicer way to do this.. --Troy */
@@ -160,15 +163,6 @@ void machine_halt(void)
 	ppc_md.halt();
 }
   
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
-void ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
-{
-	if (ppc_ide_md.ide_init_hwif != NULL) {
-		ppc_ide_md.ide_init_hwif(hw, data_port, ctrl_port, irq);
-	}
-}
-#endif
-
 unsigned long cpu_temp(void)
 {
 	unsigned char thres = 0;
@@ -376,7 +370,6 @@ identify_machine(unsigned long r3, unsigned long r4, unsigned long r5,
 			else
 			{
 				_machine = _MACH_Pmac;
-				is_prep = 1;
 			}
 		}
 
diff --git a/arch/ppc/kernel/signal.c b/arch/ppc/kernel/signal.c
index 17c0f55d1..67dfa437c 100644
--- a/arch/ppc/kernel/signal.c
+++ b/arch/ppc/kernel/signal.c
@@ -455,6 +455,7 @@ int do_signal(sigset_t *oldset, struct pt_regs *regs)
 			default:
 				lock_kernel();
 				sigaddset(&current->signal, signr);
+				recalc_sigpending(current);
 				current->flags |= PF_SIGNALED;
 				do_exit(exit_code);
 				/* NOTREACHED */
diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
index 91b4ba041..f40d8d7cc 100644
--- a/arch/ppc/kernel/smp.c
+++ b/arch/ppc/kernel/smp.c
@@ -243,20 +243,21 @@ void __init smp_boot_cpus(void)
 {
 	extern struct task_struct *current_set[NR_CPUS];
 	extern void __secondary_start_psurge(void);
-	int i;
+	extern void __secondary_start_chrp(void);
+	int i, cpu_nr;
 	struct task_struct *p;
 	unsigned long a;
 
         printk("Entering SMP Mode...\n");
 	/* let other processors know to not do certain initialization */
 	first_cpu_booted = 1;
+	smp_num_cpus = 1;
 	
 	/*
 	 * assume for now that the first cpu booted is
 	 * cpu 0, the master -- Cort
 	 */
 	cpu_callin_map[0] = 1;
-	cpu_callin_map[1] = 0;
         smp_store_cpu_info(0);
         active_kernel_processor = 0;
 	current->processor = 0;
@@ -282,16 +283,12 @@ void __init smp_boot_cpus(void)
 	{
 	case _MACH_Pmac:
 		/* assume powersurge board - 2 processors -- Cort */
-		smp_num_cpus = 2; 
+		cpu_nr = 2; 
 		break;
 	case _MACH_chrp:
-		smp_num_cpus = ((openpic_read(&OpenPIC->Global.Feature_Reporting0)
+		cpu_nr = ((openpic_read(&OpenPIC->Global.Feature_Reporting0)
 				 & OPENPIC_FEATURE_LAST_PROCESSOR_MASK) >>
 				OPENPIC_FEATURE_LAST_PROCESSOR_SHIFT)+1;
-		/* get our processor # - we may not be cpu 0 */
-		printk("SMP %d processors, boot CPU is %d (should be 0)\n",
-		       smp_num_cpus,
-		       10/*openpic_read(&OpenPIC->Processor[0]._Who_Am_I)*/);
 		break;
 	}
 
@@ -299,7 +296,7 @@ void __init smp_boot_cpus(void)
 	 * only check for cpus we know exist.  We keep the callin map
 	 * with cpus at the bottom -- Cort
 	 */
-	for ( i = 1 ; i < smp_num_cpus; i++ )
+	for ( i = 1 ; i < cpu_nr; i++ )
 	{
 		int c;
 		
@@ -332,6 +329,19 @@ void __init smp_boot_cpus(void)
 		case _MACH_chrp:
 			*(unsigned long *)KERNELBASE = i;
 			asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory");
+#if 0
+			device = find_type_devices("cpu");
+			/* assume cpu device list is in order, find the ith cpu */
+			for ( a = i; device && a; device = device->next, a-- )
+				;
+			if ( !device )
+				break;
+			printk( "Starting %s (%lu): ", device->full_name,
+				*(ulong *)get_property(device, "reg", NULL) );
+			call_rtas( "start-cpu", 3, 1, NULL,
+				   *(ulong *)get_property(device, "reg", NULL),
+				   __pa(__secondary_start_chrp), i);
+#endif			
 			break;
 		}
 		
@@ -349,6 +359,7 @@ void __init smp_boot_cpus(void)
 			/* this sync's the decr's -- Cort */
 			if ( _machine == _MACH_Pmac )
 				set_dec(decrementer_count);
+			smp_num_cpus++;
 		} else {
 			printk("Processor %d is stuck.\n", i);
 		}
@@ -366,7 +377,6 @@ void __init smp_boot_cpus(void)
 
 void __init smp_commence(void)
 {
-	printk("SMP %d: smp_commence()\n",current->processor);
 	/*
 	 *	Lets the callin's below out of their loop.
 	 */
@@ -381,16 +391,12 @@ void __init initialize_secondary(void)
 /* Activate a secondary processor. */
 asmlinkage int __init start_secondary(void *unused)
 {
-	printk("SMP %d: start_secondary()\n",current->processor);
 	smp_callin();
 	return cpu_idle(NULL);
 }
 
 void __init smp_callin(void)
 {
-	int i;
-	
-	printk("SMP %d: smp_callin()\n",current->processor);
         smp_store_cpu_info(current->processor);
 	set_dec(decrementer_count);
 	
@@ -407,7 +413,6 @@ void __init smp_callin(void)
 
 void __init smp_setup(char *str, int *ints)
 {
-	printk("SMP %d: smp_setup()\n",current->processor);
 }
 
 int __init setup_profiling_timer(unsigned int multiplier)
diff --git a/arch/ppc/kernel/syscalls.c b/arch/ppc/kernel/syscalls.c
index 3aa0becef..571b36391 100644
--- a/arch/ppc/kernel/syscalls.c
+++ b/arch/ppc/kernel/syscalls.c
@@ -33,6 +33,7 @@
 #include <linux/sys.h>
 #include <linux/ipc.h>
 #include <linux/utsname.h>
+#include <linux/file.h>
 
 #include <asm/uaccess.h>
 #include <asm/ipc.h>
@@ -201,12 +202,16 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
 
 	lock_kernel();
 	if (!(flags & MAP_ANONYMOUS)) {
-		if (fd >= NR_OPEN || !(file = current->files->fd[fd]))
+		if (!(file = fget(fd)))
 			goto out;
 	}
 	
 	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+	down(&current->mm->mmap_sem);
 	ret = do_mmap(file, addr, len, prot, flags, offset);
+	up(&current->mm->mmap_sem);
+	if (file)
+		fput(file);
 out:
 	unlock_kernel();
 	return ret;
diff --git a/arch/ppc/kernel/time.c b/arch/ppc/kernel/time.c
index 6be6b90c2..5990dad90 100644
--- a/arch/ppc/kernel/time.c
+++ b/arch/ppc/kernel/time.c
@@ -126,17 +126,9 @@ void timer_interrupt(struct pt_regs * regs)
 	smp_local_timer_interrupt(regs);
 #endif		
 
-#ifdef CONFIG_APUS
-	{
-		extern void apus_heartbeat (void);
-		apus_heartbeat ();
-	}
-#endif
-#if defined(CONFIG_ALL_PPC) || defined(CONFIG_CHRP)
-	if ( _machine == _MACH_chrp )
-		chrp_event_scan();
-#endif	
-
+	if ( ppc_md.heartbeat && !ppc_md.heartbeat_count--)
+		ppc_md.heartbeat();
+	
 	hardirq_exit(cpu);
 }