Merge from projects/mips to head by hand:

r201881 | imp | 2010-01-08 20:08:22 -0700 (Fri, 08 Jan 2010) | 3 lines
Rename mips_pcpu_init to mips_pcpu0_init since it applies only to the
BSP.  Provide a missing prototype.

r201845 | imp | 2010-01-08 15:48:21 -0700 (Fri, 08 Jan 2010) | 2 lines
Centralize initialization of pcpu, and set curthread early...

r198669 | rrs | 2009-10-30 02:53:11 -0600 (Fri, 30 Oct 2009) | 5 lines
With this commit our friend RMI will now compile. I have
not tested it and the chances of it running yet are about
ZERO.. but it will now compile. The hard part now begins,
 making it run ;-)

r198154 | rrs | 2009-10-15 15:03:32 -0600 (Thu, 15 Oct 2009) | 10 lines
Does 4 things:
1) Adds future RMI directories
2) Places intr_machdep.c in specfic files.arch pointing to the generic
   intr_machdep.c.  This allows us to have an architecture dependant
   intr_machdep.c (which we will need for RMI) in the machine specific
   directory
3) removes intr_machdep.c from files.mips
4) Adds some TARGET_XLR_XLS ifdef's for the machine specific intra_machdep.h. We
   may need to look at finding a better place to put this. But first I want to
   get this thing compiling.

r194216 | gonzo | 2009-06-14 15:16:23 -0600 (Sun, 14 Jun 2009) | 2 lines
- Fix prototypes to make compiler happy

r194215 | gonzo | 2009-06-14 15:16:04 -0600 (Sun, 14 Jun 2009) | 2 lines
- Get rid of mask_fn and fix pre_filter/post_filter functions' prototypes

r191282 | gonzo | 2009-04-19 16:02:14 -0600 (Sun, 19 Apr 2009) | 3 lines
- Make mips_bus_space_generic be of type bus_space_tag_t instead of
    struct bus_space and update all relevant places.

r191084 | gonzo | 2009-04-14 20:28:26 -0600 (Tue, 14 Apr 2009) | 6 lines
Use FreeBSD/arm approach for handling bus space access: space tag is a pointer
to bus_space structure that defines access methods and hence every bus can
define own accessors. Default space is mips_bus_space_generic. It's a simple
interface to physical memory, values are read with regard to host system
byte order.

sys/mips/idt/files.idt

@@ -6,3 +6,5 @@ mips/idt/if_kr.c		optional kr
 mips/idt/obio.c			standard
 mips/idt/uart_cpu_rc32434.c	optional uart
 mips/idt/uart_bus_rc32434.c	optional uart
+mips/mips/intr_machdep.c        standard
+mips/mips/tick.c		standard

sys/mips/idt/idt_machdep.c

@@ -75,6 +75,12 @@ __FBSDID("$FreeBSD$");
 extern int	*edata;
 extern int	*end;
 
+void
+platform_cpu_init()
+{
+	/* Nothing special */
+}
+
 void
 platform_halt(void)
 {
@@ -131,6 +137,9 @@ platform_start(__register_t a0, __register_t a1,
 	kernend = round_page((vm_offset_t)&end);
 	memset(&edata, 0, kernend - (vm_offset_t)(&edata));
 
+	/* Initialize pcpu stuff */
+	mips_pcpu0_init();
+
 	/*
 	 * Looking for mem=XXM argument
 	 */

sys/mips/idt/obio.c

@@ -76,8 +76,10 @@ static int	obio_setup_intr(device_t, device_t, struct resource *, int,
 static int	obio_teardown_intr(device_t, device_t, struct resource *,
 		    void *);
 
-static void obio_mask_irq(unsigned int irq)
+static void 
+obio_mask_irq(void *arg)
 {
+	unsigned int irq = (unsigned int)arg;
 	int ip_bit, mask, mask_register;
 
 	/* mask IRQ */
@@ -88,8 +90,10 @@ static void obio_mask_irq(unsigned int irq)
 	ICU_REG_WRITE(mask_register, mask | ip_bit);
 }
 
-static void obio_unmask_irq(unsigned int irq)
+static void 
+obio_unmask_irq(void *arg)
 {
+	unsigned int irq = (unsigned int)arg;
 	int ip_bit, mask, mask_register;
 
 	/* unmask IRQ */
@@ -274,7 +278,7 @@ obio_setup_intr(device_t dev, device_t child, struct resource *ires,
 	event = sc->sc_eventstab[irq];
 	if (event == NULL) {
 		error = intr_event_create(&event, (void *)irq, 0, irq, 
-		    (mask_fn)obio_mask_irq, (mask_fn)obio_unmask_irq,
+		    obio_mask_irq, obio_unmask_irq,
 		    NULL, NULL,
 		    "obio intr%d:", irq);
 

sys/mips/idt/uart_bus_rc32434.c

@@ -88,10 +88,10 @@ uart_rc32434_probe(device_t dev)
 	sc->sc_class = &uart_ns8250_class;
 	bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
 	sc->sc_sysdev->bas.regshft = 2;
-	sc->sc_sysdev->bas.bst = 0;
+	sc->sc_sysdev->bas.bst = mips_bus_space_generic;
 	sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(IDT_BASE_UART0);
 	sc->sc_bas.regshft = 2;
-	sc->sc_bas.bst = 0;
+	sc->sc_bas.bst = mips_bus_space_generic;
 	sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(IDT_BASE_UART0);
 
 	return (uart_bus_probe(dev, 2, 330000000UL/2, 0, 0));

sys/mips/idt/uart_cpu_rc32434.c

@@ -71,7 +71,7 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di)
 	/* Got it. Fill in the instance and return it. */
 	di->ops = uart_getops(&uart_ns8250_class);
 	di->bas.chan = 0;
-	di->bas.bst = 0;
+	di->bas.bst = mips_bus_space_generic;
 	di->bas.regshft = 2;
 	di->bas.rclk = 330000000UL/2; /* IPbus clock */
 	di->baudrate = 115200;
@@ -79,7 +79,7 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di)
 	di->stopbits = 1;
 	di->parity = UART_PARITY_NONE;
 	uart_bus_space_io = 0;
-	uart_bus_space_mem = 0;
+	uart_bus_space_mem = mips_bus_space_generic;
 	di->bas.bsh = MIPS_PHYS_TO_KSEG1(maddr);
 	return (0);
 }