diff options
Diffstat (limited to 'arch/x86/mach-visws')
| -rw-r--r-- | arch/x86/mach-visws/reboot.c | 4 | ||||
| -rw-r--r-- | arch/x86/mach-visws/setup.c | 249 | ||||
| -rw-r--r-- | arch/x86/mach-visws/traps.c | 6 | ||||
| -rw-r--r-- | arch/x86/mach-visws/visws_apic.c | 3 |
4 files changed, 113 insertions, 149 deletions
diff --git a/arch/x86/mach-visws/reboot.c b/arch/x86/mach-visws/reboot.c index 99332abfad4..79c26eab882 100644 --- a/arch/x86/mach-visws/reboot.c +++ b/arch/x86/mach-visws/reboot.c @@ -33,7 +33,7 @@ void machine_restart(char * __unused) void machine_power_off(void) { unsigned short pm_status; - extern unsigned int pci_bus0; +/* extern unsigned int pci_bus0; */ while ((pm_status = inw(PMSTS_PORT)) & 0x100) outw(pm_status, PMSTS_PORT); @@ -45,7 +45,7 @@ void machine_power_off(void) #define PCI_CONF1_ADDRESS(bus, devfn, reg) \ (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3)) - outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); +/* outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); */ outl(PIIX_SPECIAL_STOP, 0xCFC); } diff --git a/arch/x86/mach-visws/setup.c b/arch/x86/mach-visws/setup.c index d67868ec9b7..2f5e277686b 100644 --- a/arch/x86/mach-visws/setup.c +++ b/arch/x86/mach-visws/setup.c @@ -1,183 +1,144 @@ /* - * Unmaintained SGI Visual Workstation support. - * Split out from setup.c by davej@suse.de + * Machine specific setup for generic */ #include <linux/smp.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <linux/module.h> - -#include <asm/fixmap.h> +#include <asm/acpi.h> #include <asm/arch_hooks.h> -#include <asm/io.h> #include <asm/e820.h> #include <asm/setup.h> -#include "cobalt.h" -#include "piix4.h" - -int no_broadcast; - -char visws_board_type = -1; -char visws_board_rev = -1; - -void __init visws_get_board_type_and_rev(void) -{ - int raw; - - visws_board_type = (char)(inb_p(PIIX_GPI_BD_REG) & PIIX_GPI_BD_REG) - >> PIIX_GPI_BD_SHIFT; - /* - * Get Board rev. - * First, we have to initialize the 307 part to allow us access - * to the GPIO registers. Let's map them at 0x0fc0 which is right - * after the PIIX4 PM section. - */ - outb_p(SIO_DEV_SEL, SIO_INDEX); - outb_p(SIO_GP_DEV, SIO_DATA); /* Talk to GPIO regs. */ - - outb_p(SIO_DEV_MSB, SIO_INDEX); - outb_p(SIO_GP_MSB, SIO_DATA); /* MSB of GPIO base address */ - - outb_p(SIO_DEV_LSB, SIO_INDEX); - outb_p(SIO_GP_LSB, SIO_DATA); /* LSB of GPIO base address */ - - outb_p(SIO_DEV_ENB, SIO_INDEX); - outb_p(1, SIO_DATA); /* Enable GPIO registers. */ - - /* - * Now, we have to map the power management section to write - * a bit which enables access to the GPIO registers. - * What lunatic came up with this shit? - */ - outb_p(SIO_DEV_SEL, SIO_INDEX); - outb_p(SIO_PM_DEV, SIO_DATA); /* Talk to GPIO regs. */ - outb_p(SIO_DEV_MSB, SIO_INDEX); - outb_p(SIO_PM_MSB, SIO_DATA); /* MSB of PM base address */ - - outb_p(SIO_DEV_LSB, SIO_INDEX); - outb_p(SIO_PM_LSB, SIO_DATA); /* LSB of PM base address */ - - outb_p(SIO_DEV_ENB, SIO_INDEX); - outb_p(1, SIO_DATA); /* Enable PM registers. */ - - /* - * Now, write the PM register which enables the GPIO registers. - */ - outb_p(SIO_PM_FER2, SIO_PM_INDEX); - outb_p(SIO_PM_GP_EN, SIO_PM_DATA); - - /* - * Now, initialize the GPIO registers. - * We want them all to be inputs which is the - * power on default, so let's leave them alone. - * So, let's just read the board rev! - */ - raw = inb_p(SIO_GP_DATA1); - raw &= 0x7f; /* 7 bits of valid board revision ID. */ - - if (visws_board_type == VISWS_320) { - if (raw < 0x6) { - visws_board_rev = 4; - } else if (raw < 0xc) { - visws_board_rev = 5; - } else { - visws_board_rev = 6; - } - } else if (visws_board_type == VISWS_540) { - visws_board_rev = 2; - } else { - visws_board_rev = raw; - } - - printk(KERN_INFO "Silicon Graphics Visual Workstation %s (rev %d) detected\n", - (visws_board_type == VISWS_320 ? "320" : - (visws_board_type == VISWS_540 ? "540" : - "unknown")), visws_board_rev); -} +#ifdef CONFIG_HOTPLUG_CPU +#define DEFAULT_SEND_IPI (1) +#else +#define DEFAULT_SEND_IPI (0) +#endif +int no_broadcast=DEFAULT_SEND_IPI; + +/** + * pre_intr_init_hook - initialisation prior to setting up interrupt vectors + * + * Description: + * Perform any necessary interrupt initialisation prior to setting up + * the "ordinary" interrupt call gates. For legacy reasons, the ISA + * interrupts should be initialised here if the machine emulates a PC + * in any way. + **/ void __init pre_intr_init_hook(void) { - init_VISWS_APIC_irqs(); + init_ISA_irqs(); } +/* + * IRQ2 is cascade interrupt to second interrupt controller + */ +static struct irqaction irq2 = { + .handler = no_action, + .mask = CPU_MASK_NONE, + .name = "cascade", +}; + +/** + * intr_init_hook - post gate setup interrupt initialisation + * + * Description: + * Fill in any interrupts that may have been left out by the general + * init_IRQ() routine. interrupts having to do with the machine rather + * than the devices on the I/O bus (like APIC interrupts in intel MP + * systems) are started here. + **/ void __init intr_init_hook(void) { #ifdef CONFIG_X86_LOCAL_APIC apic_intr_init(); #endif + + if (!acpi_ioapic) + setup_irq(2, &irq2); +} + +/** + * pre_setup_arch_hook - hook called prior to any setup_arch() execution + * + * Description: + * generally used to activate any machine specific identification + * routines that may be needed before setup_arch() runs. On VISWS + * this is used to get the board revision and type. + **/ +void __init pre_setup_arch_hook(void) +{ } -void __init pre_setup_arch_hook() +/** + * trap_init_hook - initialise system specific traps + * + * Description: + * Called as the final act of trap_init(). Used in VISWS to initialise + * the various board specific APIC traps. + **/ +void __init trap_init_hook(void) { - visws_get_board_type_and_rev(); } -static struct irqaction irq0 = { - .handler = timer_interrupt, - .flags = IRQF_DISABLED | IRQF_IRQPOLL, - .name = "timer", +static struct irqaction irq0 = { + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL, + .mask = CPU_MASK_NONE, + .name = "timer" }; +/** + * time_init_hook - do any specific initialisations for the system timer. + * + * Description: + * Must plug the system timer interrupt source at HZ into the IRQ listed + * in irq_vectors.h:TIMER_IRQ + **/ void __init time_init_hook(void) { - printk(KERN_INFO "Starting Cobalt Timer system clock\n"); - - /* Set the countdown value */ - co_cpu_write(CO_CPU_TIMEVAL, CO_TIME_HZ/HZ); - - /* Start the timer */ - co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) | CO_CTRL_TIMERUN); - - /* Enable (unmask) the timer interrupt */ - co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) & ~CO_CTRL_TIMEMASK); - - /* Wire cpu IDT entry to s/w handler (and Cobalt APIC to IDT) */ + irq0.mask = cpumask_of_cpu(0); setup_irq(0, &irq0); } -/* Hook for machine specific memory setup. */ - -#define MB (1024 * 1024) - -unsigned long sgivwfb_mem_phys; -unsigned long sgivwfb_mem_size; -EXPORT_SYMBOL(sgivwfb_mem_phys); -EXPORT_SYMBOL(sgivwfb_mem_size); - -long long mem_size __initdata = 0; - -char * __init machine_specific_memory_setup(void) +#ifdef CONFIG_MCA +/** + * mca_nmi_hook - hook into MCA specific NMI chain + * + * Description: + * The MCA (Microchannel Architecture) has an NMI chain for NMI sources + * along the MCA bus. Use this to hook into that chain if you will need + * it. + **/ +void mca_nmi_hook(void) { - long long gfx_mem_size = 8 * MB; + /* If I recall correctly, there's a whole bunch of other things that + * we can do to check for NMI problems, but that's all I know about + * at the moment. + */ - mem_size = boot_params.alt_mem_k; + printk("NMI generated from unknown source!\n"); +} +#endif - if (!mem_size) { - printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n"); - mem_size = 128 * MB; - } +static __init int no_ipi_broadcast(char *str) +{ + get_option(&str, &no_broadcast); + printk ("Using %s mode\n", no_broadcast ? "No IPI Broadcast" : + "IPI Broadcast"); + return 1; +} - /* - * this hardcodes the graphics memory to 8 MB - * it really should be sized dynamically (or at least - * set as a boot param) - */ - if (!sgivwfb_mem_size) { - printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n"); - sgivwfb_mem_size = 8 * MB; - } +__setup("no_ipi_broadcast=", no_ipi_broadcast); - /* - * Trim to nearest MB - */ - sgivwfb_mem_size &= ~((1 << 20) - 1); - sgivwfb_mem_phys = mem_size - gfx_mem_size; +static int __init print_ipi_mode(void) +{ + printk ("Using IPI %s mode\n", no_broadcast ? "No-Shortcut" : + "Shortcut"); + return 0; +} - e820_add_region(0, LOWMEMSIZE(), E820_RAM); - e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM); - e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED); +late_initcall(print_ipi_mode); - return "PROM"; -} diff --git a/arch/x86/mach-visws/traps.c b/arch/x86/mach-visws/traps.c index bfac6ba10f8..dd1f5fa9421 100644 --- a/arch/x86/mach-visws/traps.c +++ b/arch/x86/mach-visws/traps.c @@ -25,13 +25,13 @@ static __init void lithium_init(void) if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || (li_pcia_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A'); - panic("This machine is not SGI Visual Workstation 320/540"); +/* panic("This machine is not SGI Visual Workstation 320/540"); */ } if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || (li_pcib_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B'); - panic("This machine is not SGI Visual Workstation 320/540"); +/* panic("This machine is not SGI Visual Workstation 320/540"); */ } li_pcia_write16(LI_PCI_INTEN, ALLDEVS); @@ -62,7 +62,7 @@ static __init void cobalt_init(void) co_apic_read(CO_APIC_ID)); } -void __init trap_init_hook(void) +void __init trap_init_hook_dontuse(void) { lithium_init(); cobalt_init(); diff --git a/arch/x86/mach-visws/visws_apic.c b/arch/x86/mach-visws/visws_apic.c index d8b2cfd85d9..8b1cd8e01cb 100644 --- a/arch/x86/mach-visws/visws_apic.c +++ b/arch/x86/mach-visws/visws_apic.c @@ -25,6 +25,9 @@ #include "cobalt.h" +char visws_board_type = -1; +char visws_board_rev = -1; + static DEFINE_SPINLOCK(cobalt_lock); /* |