diff options
Diffstat (limited to 'arch/mips/sgi-ip27')
| -rw-r--r-- | arch/mips/sgi-ip27/Kconfig | 38 | ||||
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-init.c | 4 | ||||
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-irq.c | 2 | ||||
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-timer.c | 61 |
4 files changed, 80 insertions, 25 deletions
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig index 7b0bc443724..f14ef38646d 100644 --- a/arch/mips/sgi-ip27/Kconfig +++ b/arch/mips/sgi-ip27/Kconfig @@ -4,31 +4,29 @@ # This options adds support for userspace processes upto 16TB size. # Normally the limit is just .5TB. -config SGI_SN0_N_MODE - bool "IP27 N-Mode" +choice + prompt "Node addressing mode" depends on SGI_IP27 - help - The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be - configured in either N-Modes which allows for more nodes or M-Mode - which allows for more memory. Your system is most probably - running in M-Mode, so you should say N here. + default SGI_SN_M_MODE -config ARCH_DISCONTIGMEM_ENABLE - bool - default y if SGI_IP27 +config SGI_SN_M_MODE + bool "IP27 M-Mode" help - Say Y to upport efficient handling of discontiguous physical memory, - for architectures which are either NUMA (Non-Uniform Memory Access) - or have huge holes in the physical address space for other reasons. - See <file:Documentation/vm/numa> for more. + The nodes of Origin, Onyx, Fuel and Tezro systems can be configured + in either N-Modes which allows for more nodes or M-Mode which allows + for more memory. Your hardware is almost certainly running in + M-Mode, so choose M-mode here. -config NUMA - bool "NUMA Support" - depends on SGI_IP27 +config SGI_SN_N_MODE + bool "IP27 N-Mode" + depends on EXPERIMENTAL help - Say Y to compile the kernel to support NUMA (Non-Uniform Memory - Access). This option is for configuring high-end multiprocessor - server machines. If in doubt, say N. + The nodes of Origin, Onyx, Fuel and Tezro systems can be configured + in either N-Modes which allows for more nodes or M-Mode which allows + for more memory. Your hardware is almost certainly running in + M-Mode, so choose M-mode here. + +endchoice config MAPPED_KERNEL bool "Mapped kernel support" diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index 8651a0e7540..a6b490e9970 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c @@ -196,7 +196,7 @@ extern void ip27_setup_console(void); extern void ip27_time_init(void); extern void ip27_reboot_setup(void); -void __init plat_setup(void) +void __init plat_mem_setup(void) { hubreg_t p, e, n_mode; nasid_t nid; @@ -228,7 +228,7 @@ void __init plat_setup(void) */ n_mode = LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_MORENODES_MASK; printk("Machine is in %c mode.\n", n_mode ? 'N' : 'M'); -#ifdef CONFIG_SGI_SN0_N_MODE +#ifdef CONFIG_SGI_SN_N_MODE if (!n_mode) panic("Kernel compiled for M mode."); #else diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 2e643d2f51c..0b61a39ce2b 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -360,7 +360,7 @@ static struct hw_interrupt_type bridge_irq_type = { static unsigned long irq_map[NR_IRQS / BITS_PER_LONG]; -static int allocate_irqno(void) +int allocate_irqno(void) { int irq; diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c index 36b662e27b6..1fb860c7ac6 100644 --- a/arch/mips/sgi-ip27/ip27-timer.c +++ b/arch/mips/sgi-ip27/ip27-timer.c @@ -89,11 +89,13 @@ static int set_rtc_mmss(unsigned long nowtime) } #endif +static unsigned int rt_timer_irq; + void ip27_rt_timer_interrupt(struct pt_regs *regs) { int cpu = smp_processor_id(); int cpuA = cputoslice(cpu) == 0; - int irq = 9; /* XXX Assign number */ + unsigned int irq = rt_timer_irq; irq_enter(); write_seqlock(&xtime_lock); @@ -179,13 +181,68 @@ static __init unsigned long get_m48t35_time(void) return mktime(year, month, date, hour, min, sec); } +static void startup_rt_irq(unsigned int irq) +{ +} + +static void shutdown_rt_irq(unsigned int irq) +{ +} + +static void enable_rt_irq(unsigned int irq) +{ +} + +static void disable_rt_irq(unsigned int irq) +{ +} + +static void mask_and_ack_rt(unsigned int irq) +{ +} + +static void end_rt_irq(unsigned int irq) +{ +} + +static struct hw_interrupt_type rt_irq_type = { + .typename = "SN HUB RT timer", + .startup = startup_rt_irq, + .shutdown = shutdown_rt_irq, + .enable = enable_rt_irq, + .disable = disable_rt_irq, + .ack = mask_and_ack_rt, + .end = end_rt_irq, +}; + +static struct irqaction rt_irqaction = { + .handler = ip27_rt_timer_interrupt, + .flags = SA_INTERRUPT, + .mask = CPU_MASK_NONE, + .name = "timer" +}; + +extern int allocate_irqno(void); + static void ip27_timer_setup(struct irqaction *irq) { + int irqno = allocate_irqno(); + + if (irqno < 0) + panic("Can't allocate interrupt number for timer interrupt"); + + irq_desc[irqno].status = IRQ_DISABLED; + irq_desc[irqno].action = NULL; + irq_desc[irqno].depth = 1; + irq_desc[irqno].handler = &rt_irq_type; + /* over-write the handler, we use our own way */ irq->handler = no_action; /* setup irqaction */ -// setup_irq(IP27_TIMER_IRQ, irq); /* XXX Can't do this yet. */ + irq_desc[irqno].status |= IRQ_PER_CPU; + + rt_timer_irq = irqno; } void __init ip27_time_init(void) |