This is rest of core patch under arch/i386/.
diffstat:
arch/i386/Kconfig | 24 +++-
arch/i386/Makefile | 15 ++
arch/i386/kernel/setup.c | 99 ----------------
arch/i386/kernel/time.c | 115 ++-----------------
arch/i386/kernel/timers/timer_pit.c | 22 ++-
arch/i386/kernel/timers/timer_tsc.c | 94 ++-------------
arch/i386/kernel/traps.c | 12 --
arch/i386/mach-generic/calibrate_tsc.h | 90 +++++++++++++++
arch/i386/mach-generic/mach_resources.h | 113 ++++++++++++++++++
arch/i386/mach-generic/mach_time.h | 122 ++++++++++++++++++++
arch/i386/mach-generic/mach_traps.h | 29 ++++
arch/i386/mach-pc9800/calibrate_tsc.h | 71 +++++++++++
arch/i386/mach-pc9800/do_timer.h | 80 +++++++++++++
arch/i386/mach-pc9800/mach_resources.h | 192 ++++++++++++++++++++++++++++++++ arch/i386/mach-pc9800/mach_time.h | 136 ++++++++++++++++++++++
arch/i386/mach-pc9800/mach_traps.h | 27 ++++
arch/i386/mach-pc9800/smpboot_hooks.h | 33 +++++
arch/i386/mach-summit/calibrate_tsc.h | 1
arch/i386/mach-summit/mach_resources.h | 1
arch/i386/mach-summit/mach_time.h | 1
arch/i386/mach-summit/mach_traps.h | 1
arch/i386/mach-visws/calibrate_tsc.h | 1
arch/i386/mach-visws/mach_resources.h | 1
arch/i386/mach-visws/mach_time.h | 1
arch/i386/mach-visws/mach_traps.h | 1
arch/i386/mach-voyager/calibrate_tsc.h | 1
arch/i386/mach-voyager/mach_resources.h | 1
arch/i386/mach-voyager/mach_time.h | 1
arch/i386/mach-voyager/mach_traps.h | 1
29 files changed, 994 insertions(+), 292 deletions(-)
-- Osamu Tomita tomita@cinet.co.jp --------------5F116BE87D590F47EDED0B97 Content-Type: text/plain; charset=iso-2022-jp; name="arch-i386.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="arch-i386.patch"diff -urN linux/arch/i386/Kconfig linux98/arch/i386/Kconfig --- linux/arch/i386/Kconfig Wed Nov 13 09:25:31 2002 +++ linux98/arch/i386/Kconfig Wed Nov 13 09:32:07 2002 @@ -995,6 +995,12 @@ # Visual Workstation support is utterly broken. # If you want to see it working mail an VW540 to hch@infradead.org 8) #bool 'SGI Visual Workstation support' CONFIG_VISWS +config PC9800 + bool "NEC PC-9800 architecture support" + help + To make kernel for NEC PC-9801/PC-9821 architecture, say Y. + If say Y, kernel works -ONLY- on PC-9800 architecture. + config X86_VISWS_APIC bool depends on VISWS @@ -1087,7 +1093,7 @@ config EISA bool "EISA support" - depends on ISA + depends on ISA && !PC9800 ---help--- The Extended Industry Standard Architecture (EISA) bus was developed as an open alternative to the IBM MicroChannel bus. @@ -1103,7 +1109,7 @@ config MCA bool "MCA support" - depends on !VISWS + depends on !(VISWS || PC9800) help MicroChannel Architecture is found in some IBM PS/2 machines and laptops. It is a bus system similar to PCI or ISA. See @@ -1451,6 +1457,7 @@ config VGA_CONSOLE bool "VGA text console" + depends on !PC9800 help Saying Y here will allow you to use Linux in text mode through a display that complies with the generic VGA standard. Virtually @@ -1464,6 +1471,7 @@ config VIDEO_SELECT bool "Video mode selection support" + depends on !PC9800 ---help--- This enables support for text mode selection on kernel startup. If you want to take advantage of some high-resolution text mode your @@ -1477,6 +1485,18 @@ Read the file <file:Documentation/svga.txt> for more information about the Video mode selection support. If unsure, say N. +config GDC_CONSOLE + bool "PC-9800 GDC text console" + depends on PC9800 + default y + help + This enables support for PC-9800 standard text mode console. + If use PC-9801/PC-9821, Say Y. + +config GDC_32BITACCESS + bool "Enable 32-bit access to text video RAM" + depends on GDC_CONSOLE + if EXPERIMENTAL config MDA_CONSOLE diff -urN linux/arch/i386/Makefile linux98/arch/i386/Makefile --- linux/arch/i386/Makefile Wed Nov 13 09:25:32 2002 +++ linux98/arch/i386/Makefile Wed Nov 13 11:04:15 2002 @@ -52,9 +52,13 @@ ifdef CONFIG_VOYAGER MACHINE := mach-voyager else +ifdef CONFIG_PC9800 +MACHINE := mach-pc9800 +else MACHINE := mach-generic endif endif +endif ifdef CONFIG_X86_STACK_CHECK CFLAGS += -p @@ -74,15 +78,20 @@ CFLAGS += -Iarch/i386/$(MACHINE) -Iarch/i386/mach-defaults AFLAGS += -Iarch/i386/$(MACHINE) -Iarch/i386/mach-defaults -makeboot = $(call descend,arch/i386/boot,$(1)) +ifndef CONFIG_PC9800 +ARCHDIR=arch/i386/boot +else +ARCHDIR=arch/i386/boot98 +endif +makeboot = $(call descend,$(ARCHDIR),$(1)) .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \ clean archclean archmrproper all: bzImage -BOOTIMAGE=arch/i386/boot/bzImage -zImage zlilo zdisk: BOOTIMAGE=arch/i386/boot/zImage +BOOTIMAGE=$(ARCHDIR)/bzImage +zImage zlilo zdisk: BOOTIMAGE=$(ARCHDIR)/zImage zImage bzImage: vmlinux +@$(call makeboot,$(BOOTIMAGE)) diff -urN linux/arch/i386/kernel/setup.c linux98/arch/i386/kernel/setup.c --- linux/arch/i386/kernel/setup.c Tue Nov 5 10:16:18 2002 +++ linux98/arch/i386/kernel/setup.c Tue Nov 5 16:28:36 2002 @@ -20,6 +20,7 @@ * This file handles the architecture-dependent parts of initialization */ +#include <linux/config.h> #include <linux/sched.h> #include <linux/mm.h> #include <linux/tty.h> @@ -40,6 +41,7 @@ #include <asm/setup.h> #include <asm/arch_hooks.h> #include "setup_arch_pre.h" +#include "mach_resources.h" static inline char * __init machine_specific_memory_setup(void); @@ -97,98 +99,8 @@ static char command_line[COMMAND_LINE_SIZE]; char saved_command_line[COMMAND_LINE_SIZE]; -struct resource standard_io_resources[] = { - { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, - { "pic1", 0x20, 0x3f, IORESOURCE_BUSY }, - { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, - { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY }, - { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, - { "pic2", 0xa0, 0xbf, IORESOURCE_BUSY }, - { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, - { "fpu", 0xf0, 0xff, IORESOURCE_BUSY } -}; -#ifdef CONFIG_MELAN -standard_io_resources[1] = { "pic1", 0x20, 0x21, IORESOURCE_BUSY }; -standard_io_resources[5] = { "pic2", 0xa0, 0xa1, IORESOURCE_BUSY }; -#endif - -#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource)) - static struct resource code_resource = { "Kernel code", 0x100000, 0 }; static struct resource data_resource = { "Kernel data", 0, 0 }; -static struct resource vram_resource = { "Video RAM area", 0xa0000, 0xbffff, IORESOURCE_BUSY }; - -/* System ROM resources */ -#define MAXROMS 6 -static struct resource rom_resources[MAXROMS] = { - { "System ROM", 0xF0000, 0xFFFFF, IORESOURCE_BUSY }, - { "Video ROM", 0xc0000, 0xc7fff, IORESOURCE_BUSY } -}; - -#define romsignature(x) (*(unsigned short *)(x) == 0xaa55) - -static void __init probe_roms(void) -{ - int roms = 1; - unsigned long base; - unsigned char *romstart; - - request_resource(&iomem_resource, rom_resources+0); - - /* Video ROM is standard at C000:0000 - C7FF:0000, check signature */ - for (base = 0xC0000; base < 0xE0000; base += 2048) { - romstart = isa_bus_to_virt(base); - if (!romsignature(romstart)) - continue; - request_resource(&iomem_resource, rom_resources + roms); - roms++; - break; - } - - /* Extension roms at C800:0000 - DFFF:0000 */ - for (base = 0xC8000; base < 0xE0000; base += 2048) { - unsigned long length; - - romstart = isa_bus_to_virt(base); - if (!romsignature(romstart)) - continue; - length = romstart[2] * 512; - if (length) { - unsigned int i; - unsigned char chksum; - - chksum = 0; - for (i = 0; i < length; i++) - chksum += romstart[i]; - - /* Good checksum? */ - if (!chksum) { - rom_resources[roms].start = base; - rom_resources[roms].end = base + length - 1; - rom_resources[roms].name = "Extension ROM"; - rom_resources[roms].flags = IORESOURCE_BUSY; - - request_resource(&iomem_resource, rom_resources + roms); - roms++; - if (roms >= MAXROMS) - return; - } - } - } - - /* Final check for motherboard extension rom at E000:0000 */ - base = 0xE0000; - romstart = isa_bus_to_virt(base); - - if (romsignature(romstart)) { - rom_resources[roms].start = base; - rom_resources[roms].end = base + 65535; - rom_resources[roms].name = "Extension ROM"; - rom_resources[roms].flags = IORESOURCE_BUSY; - - request_resource(&iomem_resource, rom_resources + roms); - } -} static void __init limit_regions (unsigned long long size) { @@ -820,11 +732,8 @@ request_resource(res, &data_resource); } } - request_resource(&iomem_resource, &vram_resource); - /* request I/O space for devices used on all i[345]86 PCs */ - for (i = 0; i < STANDARD_IO_RESOURCES; i++) - request_resource(&ioport_resource, standard_io_resources+i); + mach_request_resource( ); /* Tell the PCI layer not to allocate too close to the RAM area.. */ low_mem_size = ((max_low_pfn << PAGE_SHIFT) + 0xfffff) & ~0xfffff; @@ -904,6 +813,8 @@ #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) conswitchp = &vga_con; +#elif defined(CONFIG_GDC_CONSOLE) + conswitchp = &gdc_con; #elif defined(CONFIG_DUMMY_CONSOLE) conswitchp = &dummy_con; #endif diff -urN linux/arch/i386/kernel/time.c linux98/arch/i386/kernel/time.c --- linux/arch/i386/kernel/time.c Mon Nov 11 15:46:05 2002 +++ linux98/arch/i386/kernel/time.c Mon Nov 11 16:24:07 2002 @@ -54,12 +54,15 @@ #include <asm/processor.h> #include <asm/timer.h> -#include <linux/mc146818rtc.h> +#include "mach_time.h" + #include <linux/timex.h> #include <linux/config.h> #include <asm/arch_hooks.h> +#include "io_ports.h" + extern spinlock_t i8259A_lock; int pit_latch_buggy; /* extern */ @@ -134,69 +137,13 @@ write_unlock_irq(&xtime_lock); } -/* - * In order to set the CMOS clock precisely, set_rtc_mmss has to be - * called 500 ms after the second nowtime has started, because when - * nowtime is written into the registers of the CMOS clock, it will - * jump to the next second precisely 500 ms later. Check the Motorola - * MC146818A or Dallas DS12887 data sheet for details. - * - * BUG: This routine does not handle hour overflow properly; it just - * sets the minutes. Usually you'll only notice that after reboot! - */ static int set_rtc_mmss(unsigned long nowtime) { - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned char save_control, save_freq_select; + int retval; /* gets recalled with irq locally disabled */ spin_lock(&rtc_lock); - save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */ - CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */ - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); - - cmos_minutes = CMOS_READ(RTC_MINUTES); - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - BCD_TO_BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) - real_minutes += 30; /* correct for half hour time zone */ - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BIN_TO_BCD(real_seconds); - BIN_TO_BCD(real_minutes); - } - CMOS_WRITE(real_seconds,RTC_SECONDS); - CMOS_WRITE(real_minutes,RTC_MINUTES); - } else { - printk(KERN_WARNING - "set_rtc_mmss: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - /* The following flags have to be released exactly in this order, - * otherwise the DS12887 (popular MC146818A clone with integrated - * battery and quartz) will not reset the oscillator and will not - * update precisely 500 ms later. You won't find this mentioned in - * the Dallas Semiconductor data sheets, but who believes data - * sheets anyway ... -- Markus Kuhn - */ - CMOS_WRITE(save_control, RTC_CONTROL); - CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); + retval = mach_set_rtc_mmss(nowtime); spin_unlock(&rtc_lock); return retval; @@ -222,9 +169,9 @@ * on an 82489DX-based system. */ spin_lock(&i8259A_lock); - outb(0x0c, 0x20); + outb(0x0c, PIC_MASTER_OCW3); /* Ack the IRQ; AEOI will end it automatically. */ - inb(0x20); + inb(PIC_MASTER_POLL); spin_unlock(&i8259A_lock); } #endif @@ -238,14 +185,14 @@ */ if ((time_status & STA_UNSYNC) == 0 && xtime.tv_sec > last_rtc_update + 660 && - (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && - (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { + (xtime.tv_nsec / 1000) >= TIME1 - ((unsigned) TICK_SIZE) / 2 && + (xtime.tv_nsec / 1000) <= TIME2 + ((unsigned) TICK_SIZE) / 2) { if (set_rtc_mmss(xtime.tv_sec) == 0) last_rtc_update = xtime.tv_sec; else last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ } - + #ifdef CONFIG_MCA if( MCA_bus ) { /* The PS/2 uses level-triggered interrupts. You can't @@ -290,43 +237,15 @@ /* not static: needed by APM */ unsigned long get_cmos_time(void) { - unsigned int year, mon, day, hour, min, sec; - int i; + unsigned long retval; spin_lock(&rtc_lock); - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - /* read RTC exactly on falling edge of update flag */ - for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ - if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) - break; - for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */ - if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) - break; - do { /* Isn't this overkill ? UIP above should guarantee consistency */ - sec = CMOS_READ(RTC_SECONDS); - min = CMOS_READ(RTC_MINUTES); - hour = CMOS_READ(RTC_HOURS); - day = CMOS_READ(RTC_DAY_OF_MONTH); - mon = CMOS_READ(RTC_MONTH); - year = CMOS_READ(RTC_YEAR); - } while (sec != CMOS_READ(RTC_SECONDS)); - if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - { - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); - } + + retval = mach_get_cmos_time(); + spin_unlock(&rtc_lock); - if ((year += 1900) < 1970) - year += 100; - return mktime(year, mon, day, hour, min, sec); + + return retval; } /* XXX this driverfs stuff should probably go elsewhere later -john */ diff -urN linux/arch/i386/kernel/timers/timer_pit.c linux98/arch/i386/kernel/timers/timer_pit.c --- linux/arch/i386/kernel/timers/timer_pit.c Wed Nov 13 09:25:31 2002 +++ linux98/arch/i386/kernel/timers/timer_pit.c Wed Nov 13 09:32:08 2002 @@ -16,6 +16,7 @@ extern spinlock_t i8259A_lock; extern spinlock_t i8253_lock; #include "do_timer.h" +#include "io_ports.h" static int init_pit(void) { @@ -64,7 +65,8 @@ { int count; - static int count_p = LATCH; /* for the first call after boot */ + static int count_p; + static int is_1st_boot = 1; /* for the first call after boot */ static unsigned long jiffies_p = 0; /* @@ -72,12 +74,18 @@ */ unsigned long jiffies_t; + /* for support LATCH is not constant */ + if (is_1st_boot) { + is_1st_boot = 0; + count_p = LATCH; + } + /* gets recalled with irq locally disabled */ spin_lock(&i8253_lock); /* timer count may underflow right here */ - outb_p(0x00, 0x43); /* latch the count ASAP */ + outb_p(0x00, PIT_MODE); /* latch the count ASAP */ - count = inb_p(0x40); /* read the latched count */ + count = inb_p(PIT_CH0); /* read the latched count */ /* * We do this guaranteed double memory access instead of a _p @@ -85,13 +93,13 @@ */ jiffies_t = jiffies; - count |= inb_p(0x40) << 8; + count |= inb_p(PIT_CH0) << 8; /* VIA686a test code... reset the latch if count > max + 1 */ if (count > LATCH) { - outb_p(0x34, 0x43); - outb_p(LATCH & 0xff, 0x40); - outb(LATCH >> 8, 0x40); + outb_p(0x34, PIT_MODE); + outb_p(LATCH & 0xff, PIT_CH0); + outb(LATCH >> 8, PIT_CH0); count = LATCH - 1; } diff -urN linux/arch/i386/kernel/timers/timer_tsc.c linux98/arch/i386/kernel/timers/timer_tsc.c --- linux/arch/i386/kernel/timers/timer_tsc.c Mon Nov 11 15:46:05 2002 +++ linux98/arch/i386/kernel/timers/timer_tsc.c Mon Nov 11 16:39:36 2002 @@ -12,6 +12,9 @@ #include <asm/timer.h> #include <asm/io.h> +#include "io_ports.h" +#include "calibrate_tsc.h" + extern int x86_udelay_tsc; extern spinlock_t i8253_lock; @@ -19,8 +22,6 @@ /* Number of usecs that the last interrupt was delayed */ static int delay_at_last_interrupt; -static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */ - /* Cached *multiplier* to convert TSC counts to microseconds. * (see the equation below). * Equal to 2^32 * (1 / (clocks per usec) ). @@ -61,7 +62,12 @@ { int count; int countmp; - static int count1=0, count2=LATCH; + static int count1=0, count2, initialize = 1; + + if (initialize) { + count2 = LATCH; + initialize = 0; + } /* * It is important that these two operations happen almost at * the same time. We do the RDTSC stuff first, since it's @@ -79,10 +85,10 @@ rdtscl(last_tsc_low); spin_lock(&i8253_lock); - outb_p(0x00, 0x43); /* latch the count ASAP */ + outb_p(0x00, PIT_MODE); /* latch the count ASAP */ - count = inb_p(0x40); /* read the latched count */ - count |= inb(0x40) << 8; + count = inb_p(PIT_CH0); /* read the latched count */ + count |= inb(PIT_CH0) << 8; spin_unlock(&i8253_lock); if (pit_latch_buggy) { @@ -104,83 +110,9 @@ } -/* ------ Calibrate the TSC ------- - * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). - * Too much 64-bit arithmetic here to do this cleanly in C, and for - * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2) - * output busy loop as low as possible. We avoid reading the CTC registers - * directly because of the awkward 8-bit access mechanism of the 82C54 - * device. - */ - -#define CALIBRATE_LATCH (5 * LATCH) -#define CALIBRATE_TIME (5 * 1000020/HZ) - static unsigned long __init calibrate_tsc(void) { - /* Set the Gate high, disable speaker */ - outb((inb(0x61) & ~0x02) | 0x01, 0x61); - - /* - * Now let's take care of CTC channel 2 - * - * Set the Gate high, program CTC channel 2 for mode 0, - * (interrupt on terminal count mode), binary count, - * load 5 * LATCH count, (LSB and MSB) to begin countdown. - * - * Some devices need a delay here. - */ - outb(0xb0, 0x43); /* binary, mode 0, LSB/MSB, Ch 2 */ - outb_p(CALIBRATE_LATCH & 0xff, 0x42); /* LSB of count */ - outb_p(CALIBRATE_LATCH >> 8, 0x42); /* MSB of count */ - - { - unsigned long startlow, starthigh; - unsigned long endlow, endhigh; - unsigned long count; - - rdtsc(startlow,starthigh); - count = 0; - do { - count++; - } while ((inb(0x61) & 0x20) == 0); - rdtsc(endlow,endhigh); - - last_tsc_low = endlow; - - /* Error: ECTCNEVERSET */ - if (count <= 1) - goto bad_ctc; - - /* 64-bit subtract - gcc just messes up with long longs */ - __asm__("subl %2,%0\n\t" - "sbbl %3,%1" - :"=a" (endlow), "=d" (endhigh) - :"g" (startlow), "g" (starthigh), - "0" (endlow), "1" (endhigh)); - - /* Error: ECPUTOOFAST */ - if (endhigh) - goto bad_ctc; - - /* Error: ECPUTOOSLOW */ - if (endlow <= CALIBRATE_TIME) - goto bad_ctc; - - __asm__("divl %2" - :"=a" (endlow), "=d" (endhigh) - :"r" (endlow), "0" (0), "1" (CALIBRATE_TIME)); - - return endlow; - } - - /* - * The CTC wasn't reliable: we got a hit on the very first read, - * or the CPU was so fast/slow that the quotient wouldn't fit in - * 32 bits.. - */ -bad_ctc: - return 0; + return mach_calibrate_tsc(); } diff -urN linux/arch/i386/kernel/traps.c linux98/arch/i386/kernel/traps.c --- linux/arch/i386/kernel/traps.c Tue Nov 5 10:16:18 2002 +++ linux98/arch/i386/kernel/traps.c Tue Nov 5 22:40:55 2002 @@ -49,6 +49,8 @@ #include <linux/irq.h> #include <linux/module.h> +#include "mach_traps.h" + asmlinkage int system_call(void); asmlinkage void lcall7(void); asmlinkage void lcall27(void); @@ -452,8 +454,7 @@ printk("You probably have a hardware problem with your RAM chips\n"); /* Clear and disable the memory parity error line. */ - reason = (reason & 0xf) | 4; - outb(reason, 0x61); + clear_mem_error(reason); } static void io_check_error(unsigned char reason, struct pt_regs * regs) @@ -490,7 +491,7 @@ static void default_do_nmi(struct pt_regs * regs) { - unsigned char reason = inb(0x61); + unsigned char reason = get_nmi_reason(); if (!(reason & 0xc0)) { #if CONFIG_X86_LOCAL_APIC @@ -514,10 +515,7 @@ * Reassert NMI in case it became active meanwhile * as it's edge-triggered. */ - outb(0x8f, 0x70); - inb(0x71); /* dummy */ - outb(0x0f, 0x70); - inb(0x71); /* dummy */ + reassert_nmi(); } static int dummy_nmi_callback(struct pt_regs * regs, int cpu) diff -urN linux/arch/i386/mach-generic/calibrate_tsc.h linux98/arch/i386/mach-generic/calibrate_tsc.h --- linux/arch/i386/mach-generic/calibrate_tsc.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-generic/calibrate_tsc.h Tue Nov 5 22:15:11 2002 @@ -0,0 +1,90 @@ +/* + * arch/i386/mach-generic/calibrate_tsc.h + * + * Machine specific calibrate_tsc() for generic. + * Split out from timer_tsc.c by Osamu Tomita <tomita@cinet.co.jp> + */ +/* ------ Calibrate the TSC ------- + * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). + * Too much 64-bit arithmetic here to do this cleanly in C, and for + * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2) + * output busy loop as low as possible. We avoid reading the CTC registers + * directly because of the awkward 8-bit access mechanism of the 82C54 + * device. + */ +#ifndef _MACH_CALIBRATE_TSC_H +#define _MACH_CALIBRATE_TSC_H + +#define CALIBRATE_LATCH (5 * LATCH) +#define CALIBRATE_TIME (5 * 1000020/HZ) + +static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */ + +static inline unsigned long mach_calibrate_tsc(void) +{ + /* Set the Gate high, disable speaker */ + outb((inb(0x61) & ~0x02) | 0x01, 0x61); + + /* + * Now let's take care of CTC channel 2 + * + * Set the Gate high, program CTC channel 2 for mode 0, + * (interrupt on terminal count mode), binary count, + * load 5 * LATCH count, (LSB and MSB) to begin countdown. + * + * Some devices need a delay here. + */ + outb(0xb0, PIT_MODE); /* binary, mode 0, LSB/MSB, Ch 2 */ + outb(CALIBRATE_LATCH & 0xff, PIT_CH2); /* LSB of count */ + outb(CALIBRATE_LATCH >> 8, PIT_CH2); /* MSB of count */ + + { + unsigned long startlow, starthigh; + unsigned long endlow, endhigh; + unsigned long count; + + rdtsc(startlow,starthigh); + count = 0; + do { + count++; + } while ((inb(0x61) & 0x20) == 0); + rdtsc(endlow,endhigh); + + last_tsc_low = endlow; + + /* Error: ECTCNEVERSET */ + if (count <= 1) + goto bad_ctc; + + /* 64-bit subtract - gcc just messes up with long longs */ + __asm__("subl %2,%0\n\t" + "sbbl %3,%1" + :"=a" (endlow), "=d" (endhigh) + :"g" (startlow), "g" (starthigh), + "0" (endlow), "1" (endhigh)); + + /* Error: ECPUTOOFAST */ + if (endhigh) + goto bad_ctc; + + /* Error: ECPUTOOSLOW */ + if (endlow <= CALIBRATE_TIME) + goto bad_ctc; + + __asm__("divl %2" + :"=a" (endlow), "=d" (endhigh) + :"r" (endlow), "0" (0), "1" (CALIBRATE_TIME)); + + return endlow; + } + + /* + * The CTC wasn't reliable: we got a hit on the very first read, + * or the CPU was so fast/slow that the quotient wouldn't fit in + * 32 bits.. + */ +bad_ctc: + return 0; +} + +#endif /* !_MACH_CALIBRATE_TSC_H */ diff -urN linux/arch/i386/mach-generic/mach_resources.h linux98/arch/i386/mach-generic/mach_resources.h --- linux/arch/i386/mach-generic/mach_resources.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-generic/mach_resources.h Mon Oct 21 09:59:22 2002 @@ -0,0 +1,113 @@ +/* + * arch/i386/mach-generic/mach_resources.h + * + * Machine specific resource allocation for generic. + * Split out from setup.c by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_RESOURCES_H +#define _MACH_RESOURCES_H + +struct resource standard_io_resources[] = { + { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, + { "pic1", 0x20, 0x3f, IORESOURCE_BUSY }, + { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, + { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY }, + { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, + { "pic2", 0xa0, 0xbf, IORESOURCE_BUSY }, + { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, + { "fpu", 0xf0, 0xff, IORESOURCE_BUSY } +}; +#ifdef CONFIG_MELAN +standard_io_resources[1] = { "pic1", 0x20, 0x21, IORESOURCE_BUSY }; +standard_io_resources[5] = { "pic2", 0xa0, 0xa1, IORESOURCE_BUSY }; +#endif + +#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource)) + +static struct resource vram_resource = { "Video RAM area", 0xa0000, 0xbffff, IORESOURCE_BUSY }; + +/* System ROM resources */ +#define MAXROMS 6 +static struct resource rom_resources[MAXROMS] = { + { "System ROM", 0xF0000, 0xFFFFF, IORESOURCE_BUSY }, + { "Video ROM", 0xc0000, 0xc7fff, IORESOURCE_BUSY } +}; + +#define romsignature(x) (*(unsigned short *)(x) == 0xaa55) + +static inline void probe_roms(void) +{ + int roms = 1; + unsigned long base; + unsigned char *romstart; + + request_resource(&iomem_resource, rom_resources+0); + + /* Video ROM is standard at C000:0000 - C7FF:0000, check signature */ + for (base = 0xC0000; base < 0xE0000; base += 2048) { + romstart = isa_bus_to_virt(base); + if (!romsignature(romstart)) + continue; + request_resource(&iomem_resource, rom_resources + roms); + roms++; + break; + } + + /* Extension roms at C800:0000 - DFFF:0000 */ + for (base = 0xC8000; base < 0xE0000; base += 2048) { + unsigned long length; + + romstart = isa_bus_to_virt(base); + if (!romsignature(romstart)) + continue; + length = romstart[2] * 512; + if (length) { + unsigned int i; + unsigned char chksum; + + chksum = 0; + for (i = 0; i < length; i++) + chksum += romstart[i]; + + /* Good checksum? */ + if (!chksum) { + rom_resources[roms].start = base; + rom_resources[roms].end = base + length - 1; + rom_resources[roms].name = "Extension ROM"; + rom_resources[roms].flags = IORESOURCE_BUSY; + + request_resource(&iomem_resource, rom_resources + roms); + roms++; + if (roms >= MAXROMS) + return; + } + } + } + + /* Final check for motherboard extension rom at E000:0000 */ + base = 0xE0000; + romstart = isa_bus_to_virt(base); + + if (romsignature(romstart)) { + rom_resources[roms].start = base; + rom_resources[roms].end = base + 65535; + rom_resources[roms].name = "Extension ROM"; + rom_resources[roms].flags = IORESOURCE_BUSY; + + request_resource(&iomem_resource, rom_resources + roms); + } +} + +static inline void mach_request_resource(void) +{ + int i; + + request_resource(&iomem_resource, &vram_resource); + + /* request I/O space for devices used on all i[345]86 PCs */ + for (i = 0; i < STANDARD_IO_RESOURCES; i++) + request_resource(&ioport_resource, standard_io_resources+i); + +} + +#endif /* !_MACH_RESOURCES_H */ diff -urN linux/arch/i386/mach-generic/mach_time.h linux98/arch/i386/mach-generic/mach_time.h --- linux/arch/i386/mach-generic/mach_time.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-generic/mach_time.h Mon Oct 21 10:07:35 2002 @@ -0,0 +1,122 @@ +/* + * arch/i386/mach-generic/mach_time.h + * + * Machine specific set RTC function for generic. + * Split out from time.c by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_TIME_H +#define _MACH_TIME_H + +#include <linux/mc146818rtc.h> + +/* for check timing call set_rtc_mmss() 500ms */ +/* used in arch/i386/time.c::do_timer_interrupt() */ +#define TIME1 500000 +#define TIME2 500000 + +/* + * In order to set the CMOS clock precisely, set_rtc_mmss has to be + * called 500 ms after the second nowtime has started, because when + * nowtime is written into the registers of the CMOS clock, it will + * jump to the next second precisely 500 ms later. Check the Motorola + * MC146818A or Dallas DS12887 data sheet for details. + * + * BUG: This routine does not handle hour overflow properly; it just + * sets the minutes. Usually you'll only notice that after reboot! + */ +static inline int mach_set_rtc_mmss(unsigned long nowtime) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + unsigned char save_control, save_freq_select; + + save_control = CMOS_READ(RTC_CONTROL); /* tell the clock it's being set */ + CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); + + save_freq_select = CMOS_READ(RTC_FREQ_SELECT); /* stop and reset prescaler */ + CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); + + cmos_minutes = CMOS_READ(RTC_MINUTES); + if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + BCD_TO_BIN(cmos_minutes); + + /* + * since we're only adjusting minutes and seconds, + * don't interfere with hour overflow. This avoids + * messing with unknown time zones but requires your + * RTC not to be off by more than 15 minutes + */ + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) + real_minutes += 30; /* correct for half hour time zone */ + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { + BIN_TO_BCD(real_seconds); + BIN_TO_BCD(real_minutes); + } + CMOS_WRITE(real_seconds,RTC_SECONDS); + CMOS_WRITE(real_minutes,RTC_MINUTES); + } else { + printk(KERN_WARNING + "set_rtc_mmss: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + /* The following flags have to be released exactly in this order, + * otherwise the DS12887 (popular MC146818A clone with integrated + * battery and quartz) will not reset the oscillator and will not + * update precisely 500 ms later. You won't find this mentioned in + * the Dallas Semiconductor data sheets, but who believes data + * sheets anyway ... -- Markus Kuhn + */ + CMOS_WRITE(save_control, RTC_CONTROL); + CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); + + return retval; +} + +static inline unsigned long mach_get_cmos_time(void) +{ + unsigned int year, mon, day, hour, min, sec; + int i; + + /* The Linux interpretation of the CMOS clock register contents: + * When the Update-In-Progress (UIP) flag goes from 1 to 0, the + * RTC registers show the second which has precisely just started. + * Let's hope other operating systems interpret the RTC the same way. + */ + /* read RTC exactly on falling edge of update flag */ + for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ + if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) + break; + for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */ + if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) + break; + do { /* Isn't this overkill ? UIP above should guarantee consistency */ + sec = CMOS_READ(RTC_SECONDS); + min = CMOS_READ(RTC_MINUTES); + hour = CMOS_READ(RTC_HOURS); + day = CMOS_READ(RTC_DAY_OF_MONTH); + mon = CMOS_READ(RTC_MONTH); + year = CMOS_READ(RTC_YEAR); + } while (sec != CMOS_READ(RTC_SECONDS)); + if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + { + BCD_TO_BIN(sec); + BCD_TO_BIN(min); + BCD_TO_BIN(hour); + BCD_TO_BIN(day); + BCD_TO_BIN(mon); + BCD_TO_BIN(year); + } + if ((year += 1900) < 1970) + year += 100; + + return mktime(year, mon, day, hour, min, sec); +} + +#endif /* !_MACH_TIME_H */ diff -urN linux/arch/i386/mach-generic/mach_traps.h linux98/arch/i386/mach-generic/mach_traps.h --- linux/arch/i386/mach-generic/mach_traps.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-generic/mach_traps.h Tue Nov 5 22:42:05 2002 @@ -0,0 +1,29 @@ +/* + * arch/i386/mach-generic/mach_traps.h + * + * Machine specific NMI handling for generic. + * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_TRAPS_H +#define _MACH_TRAPS_H + +static inline void clear_mem_error(unsigned char reason) +{ + reason = (reason & 0xf) | 4; + outb(reason, 0x61); +} + +static inline unsigned char get_nmi_reason(void) +{ + return inb(0x61); +} + +static inline void reassert_nmi(void) +{ + outb(0x8f, 0x70); + inb(0x71); /* dummy */ + outb(0x0f, 0x70); + inb(0x71); /* dummy */ +} + +#endif /* !_MACH_TRAPS_H */ diff -urN linux/arch/i386/mach-pc9800/calibrate_tsc.h linux98/arch/i386/mach-pc9800/calibrate_tsc.h --- linux/arch/i386/mach-pc9800/calibrate_tsc.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/calibrate_tsc.h Tue Nov 5 22:19:50 2002 @@ -0,0 +1,71 @@ +/* + * arch/i386/mach-pc9800/calibrate_tsc.h + * + * Machine specific calibrate_tsc() for PC-9800. + * Written by Osamu Tomita <tomita@cinet.co.jp> + */ + +/* ------ Calibrate the TSC ------- + * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). + * Too much 64-bit arithmetic here to do this cleanly in C. + * PC-9800: + * CTC cannot be used because some models (especially + * note-machines) may disable clock to speaker channel (#1) + * unless speaker is enabled. We use ARTIC instead. + */ +#ifndef _MACH_CALIBRATE_TSC_H +#define _MACH_CALIBRATE_TSC_H + +#define CALIBRATE_LATCH (5 * 307200/HZ) /* 0.050sec * 307200Hz = 15360 */ +#define CALIBRATE_TIME (5 * 1000020/HZ) + +static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */ + +static inline unsigned long mach_calibrate_tsc(void) +{ + + unsigned long startlow, starthigh; + unsigned long endlow, endhigh; + unsigned short count; + + for (count = inw(0x5c); inw(0x5c) == count; ) + ; + rdtsc(startlow,starthigh); + count = inw(0x5c); + while ((unsigned short)(inw(0x5c) - count) < CALIBRATE_LATCH) + ; + rdtsc(endlow,endhigh); + + last_tsc_low = endlow; + + /* 64-bit subtract - gcc just messes up with long longs */ + __asm__("subl %2,%0\n\t" + "sbbl %3,%1" + :"=a" (endlow), "=d" (endhigh) + :"g" (startlow), "g" (starthigh), + "0" (endlow), "1" (endhigh)); + + /* Error: ECPUTOOFAST */ + if (endhigh) + goto bad_ctc; + + /* Error: ECPUTOOSLOW */ + if (endlow <= CALIBRATE_TIME) + goto bad_ctc; + + __asm__("divl %2" + :"=a" (endlow), "=d" (endhigh) + :"r" (endlow), "0" (0), "1" (CALIBRATE_TIME)); + + return endlow; + + /* + * The CTC wasn't reliable: we got a hit on the very first read, + * or the CPU was so fast/slow that the quotient wouldn't fit in + * 32 bits.. + */ +bad_ctc: + return 0; +} + +#endif /* !_MACH_CALIBRATE_TSC_H */ diff -urN linux/arch/i386/mach-pc9800/do_timer.h linux98/arch/i386/mach-pc9800/do_timer.h --- linux/arch/i386/mach-pc9800/do_timer.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/do_timer.h Wed Oct 16 13:20:29 2002 @@ -0,0 +1,80 @@ +/* defines for inline arch setup functions */ + +/** + * do_timer_interrupt_hook - hook into timer tick + * @regs: standard registers from interrupt + * + * Description: + * This hook is called immediately after the timer interrupt is ack'd. + * It's primary purpose is to allow architectures that don't possess + * individual per CPU clocks (like the CPU APICs supply) to broadcast the + * timer interrupt as a means of triggering reschedules etc. + **/ + +static inline void do_timer_interrupt_hook(struct pt_regs *regs) +{ + do_timer(regs); +/* + * In the SMP case we use the local APIC timer interrupt to do the + * profiling, except when we simulate SMP mode on a uniprocessor + * system, in that case we have to call the local interrupt handler. + */ +#ifndef CONFIG_X86_LOCAL_APIC + x86_do_profile(regs); +#else + if (!using_apic_timer) + smp_local_timer_interrupt(regs); +#endif +} + + +/* you can safely undefine this if you don't have the Neptune chipset */ + +#define BUGGY_NEPTUN_TIMER + +/** + * do_timer_overflow - process a detected timer overflow condition + * @count: hardware timer interrupt count on overflow + * + * Description: + * This call is invoked when the jiffies count has not incremented but + * the hardware timer interrupt has. It means that a timer tick interrupt + * came along while the previous one was pending, thus a tick was missed + **/ +static inline int do_timer_overflow(int count) +{ + int i; + + spin_lock(&i8259A_lock); + /* + * This is tricky when I/O APICs are used; + * see do_timer_interrupt(). + */ + i = inb(0x00); + spin_unlock(&i8259A_lock); + + /* assumption about timer being IRQ0 */ + if (i & 0x01) { + /* + * We cannot detect lost timer interrupts ... + * well, that's why we call them lost, don't we? :) + * [hmm, on the Pentium and Alpha we can ... sort of] + */ + count -= LATCH; + } else { +#ifdef BUGGY_NEPTUN_TIMER + /* + * for the Neptun bug we know that the 'latch' + * command doesnt latch the high and low value + * of the counter atomically. Thus we have to + * substract 256 from the counter + * ... funny, isnt it? :) + */ + + count -= 256; +#else + printk("do_slow_gettimeoffset(): hardware timer problem?\n"); +#endif + } + return count; +} diff -urN linux/arch/i386/mach-pc9800/mach_resources.h linux98/arch/i386/mach-pc9800/mach_resources.h --- linux/arch/i386/mach-pc9800/mach_resources.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/mach_resources.h Sat Oct 26 17:35:19 2002 @@ -0,0 +1,192 @@ +/* + * arch/i386/mach-pc9800/mach_resources.h + * + * Machine specific resource allocation for PC-9800. + * Written by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_RESOURCES_H +#define _MACH_RESOURCES_H + +static char str_pic1[] = "pic1"; +static char str_dma[] = "dma"; +static char str_pic2[] = "pic2"; +static char str_calender_clock[] = "calender clock"; +static char str_system[] = "system"; +static char str_nmi_control[] = "nmi control"; +static char str_kanji_rom[] = "kanji rom"; +static char str_keyboard[] = "keyboard"; +static char str_text_gdc[] = "text gdc"; +static char str_crtc[] = "crtc"; +static char str_timer[] = "timer"; +static char str_graphic_gdc[] = "graphic gdc"; +static char str_dma_ex_bank[] = "dma ex. bank"; +static char str_beep_freq[] = "beep freq."; +static char str_mouse_pio[] = "mouse pio"; +struct resource standard_io_resources[] = { + { str_pic1, 0x00, 0x00, IORESOURCE_BUSY }, + { str_dma, 0x01, 0x01, IORESOURCE_BUSY }, + { str_pic1, 0x02, 0x02, IORESOURCE_BUSY }, + { str_dma, 0x03, 0x03, IORESOURCE_BUSY }, + { str_dma, 0x05, 0x05, IORESOURCE_BUSY }, + { str_dma, 0x07, 0x07, IORESOURCE_BUSY }, + { str_pic2, 0x08, 0x08, IORESOURCE_BUSY }, + { str_dma, 0x09, 0x09, IORESOURCE_BUSY }, + { str_pic2, 0x0a, 0x0a, IORESOURCE_BUSY }, + { str_dma, 0x0b, 0x0b, IORESOURCE_BUSY }, + { str_dma, 0x0d, 0x0d, IORESOURCE_BUSY }, + { str_dma, 0x0f, 0x0f, IORESOURCE_BUSY }, + { str_dma, 0x11, 0x11, IORESOURCE_BUSY }, + { str_dma, 0x13, 0x13, IORESOURCE_BUSY }, + { str_dma, 0x15, 0x15, IORESOURCE_BUSY }, + { str_dma, 0x17, 0x17, IORESOURCE_BUSY }, + { str_dma, 0x19, 0x19, IORESOURCE_BUSY }, + { str_dma, 0x1b, 0x1b, IORESOURCE_BUSY }, + { str_dma, 0x1d, 0x1d, IORESOURCE_BUSY }, + { str_dma, 0x1f, 0x1f, IORESOURCE_BUSY }, + { str_calender_clock, 0x20, 0x20, 0 }, + { str_dma, 0x21, 0x21, IORESOURCE_BUSY }, + { str_calender_clock, 0x22, 0x22, 0 }, + { str_dma, 0x23, 0x23, IORESOURCE_BUSY }, + { str_dma, 0x25, 0x25, IORESOURCE_BUSY }, + { str_dma, 0x27, 0x27, IORESOURCE_BUSY }, + { str_dma, 0x29, 0x29, IORESOURCE_BUSY }, + { str_dma, 0x2b, 0x2b, IORESOURCE_BUSY }, + { str_dma, 0x2d, 0x2d, IORESOURCE_BUSY }, + { str_system, 0x31, 0x31, IORESOURCE_BUSY }, + { str_system, 0x33, 0x33, IORESOURCE_BUSY }, + { str_system, 0x35, 0x35, IORESOURCE_BUSY }, + { str_system, 0x37, 0x37, IORESOURCE_BUSY }, + { str_nmi_control, 0x50, 0x50, IORESOURCE_BUSY }, + { str_nmi_control, 0x52, 0x52, IORESOURCE_BUSY }, + { "time stamp", 0x5c, 0x5f, IORESOURCE_BUSY }, + { str_kanji_rom, 0xa1, 0xa1, IORESOURCE_BUSY }, + { str_kanji_rom, 0xa3, 0xa3, IORESOURCE_BUSY }, + { str_kanji_rom, 0xa5, 0xa5, IORESOURCE_BUSY }, + { str_kanji_rom, 0xa7, 0xa7, IORESOURCE_BUSY }, + { str_kanji_rom, 0xa9, 0xa9, IORESOURCE_BUSY }, + { str_keyboard, 0x41, 0x41, IORESOURCE_BUSY }, + { str_keyboard, 0x43, 0x43, IORESOURCE_BUSY }, + { str_text_gdc, 0x60, 0x60, IORESOURCE_BUSY }, + { str_text_gdc, 0x62, 0x62, IORESOURCE_BUSY }, + { str_text_gdc, 0x64, 0x64, IORESOURCE_BUSY }, + { str_text_gdc, 0x66, 0x66, IORESOURCE_BUSY }, + { str_text_gdc, 0x68, 0x68, IORESOURCE_BUSY }, + { str_text_gdc, 0x6a, 0x6a, IORESOURCE_BUSY }, + { str_text_gdc, 0x6c, 0x6c, IORESOURCE_BUSY }, + { str_text_gdc, 0x6e, 0x6e, IORESOURCE_BUSY }, + { str_crtc, 0x70, 0x70, IORESOURCE_BUSY }, + { str_crtc, 0x72, 0x72, IORESOURCE_BUSY }, + { str_crtc, 0x74, 0x74, IORESOURCE_BUSY }, + { str_crtc, 0x74, 0x74, IORESOURCE_BUSY }, + { str_crtc, 0x76, 0x76, IORESOURCE_BUSY }, + { str_crtc, 0x78, 0x78, IORESOURCE_BUSY }, + { str_crtc, 0x7a, 0x7a, IORESOURCE_BUSY }, + { str_timer, 0x71, 0x71, IORESOURCE_BUSY }, + { str_timer, 0x73, 0x73, IORESOURCE_BUSY }, + { str_timer, 0x75, 0x75, IORESOURCE_BUSY }, + { str_timer, 0x77, 0x77, IORESOURCE_BUSY }, + { str_graphic_gdc, 0xa0, 0xa0, IORESOURCE_BUSY }, + { str_graphic_gdc, 0xa2, 0xa2, IORESOURCE_BUSY }, + { str_graphic_gdc, 0xa4, 0xa4, IORESOURCE_BUSY }, + { str_graphic_gdc, 0xa6, 0xa6, IORESOURCE_BUSY }, + { "cpu", 0xf0, 0xf7, IORESOURCE_BUSY }, + { "fpu", 0xf8, 0xff, IORESOURCE_BUSY }, + { str_dma_ex_bank, 0x0e05, 0x0e05, 0 }, + { str_dma_ex_bank, 0x0e07, 0x0e07, 0 }, + { str_dma_ex_bank, 0x0e09, 0x0e09, 0 }, + { str_dma_ex_bank, 0x0e0b, 0x0e0b, 0 }, + { str_beep_freq, 0x3fd9, 0x3fd9, IORESOURCE_BUSY }, + { str_beep_freq, 0x3fdb, 0x3fdb, IORESOURCE_BUSY }, + { str_beep_freq, 0x3fdd, 0x3fdd, IORESOURCE_BUSY }, + { str_beep_freq, 0x3fdf, 0x3fdf, IORESOURCE_BUSY }, + /* All PC-9800 have (exactly) one mouse interface. */ + { str_mouse_pio, 0x7fd9, 0x7fd9, 0 }, + { str_mouse_pio, 0x7fdb, 0x7fdb, 0 }, + { str_mouse_pio, 0x7fdd, 0x7fdd, 0 }, + { str_mouse_pio, 0x7fdf, 0x7fdf, 0 }, + { "mouse timer", 0xbfdb, 0xbfdb, 0 }, + { "mouse irq", 0x98d7, 0x98d7, 0 }, +}; + +#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource)) + +static struct resource tvram_resource = { "Text VRAM/CG window", 0xa0000, 0xa4fff, IORESOURCE_BUSY }; +static struct resource gvram_brg_resource = { "Graphic VRAM (B/R/G)", 0xa8000, 0xbffff, IORESOURCE_BUSY }; +static struct resource gvram_e_resource = { "Graphic VRAM (E)", 0xe0000, 0xe7fff, IORESOURCE_BUSY }; + +/* System ROM resources */ +#define MAXROMS 6 +static struct resource rom_resources[MAXROMS] = { + { "System ROM", 0xe8000, 0xfffff, IORESOURCE_BUSY } +}; + +static inline void probe_roms(void) +{ + int roms = 1; + int i; + __u8 *xrom_id; + + request_resource(&iomem_resource, rom_resources+0); + + xrom_id = (__u8 *) isa_bus_to_virt(PC9800SCA_XROM_ID + 0x10); + + for (i = 0; i < 16; i++) { + if (xrom_id[i] & 0x80) { + int j; + + for (j = i + 1; j < 16 && (xrom_id[j] & 0x80); j++) + ; + rom_resources[roms].start = 0x0d0000 + i * 0x001000; + rom_resources[roms].end = 0x0d0000 + j * 0x001000 - 1; + rom_resources[roms].name = "Extension ROM"; + rom_resources[roms].flags = IORESOURCE_BUSY; + + request_resource(&iomem_resource, + rom_resources + roms); + if (++roms >= MAXROMS) + return; + } + } +} + +static inline void mach_request_resource(void) +{ + int i; + + if (PC9800_HIGHRESO_P()) { + tvram_resource.start = 0xe0000; + tvram_resource.end = 0xe4fff; + gvram_brg_resource.name = "Graphic VRAM"; + gvram_brg_resource.start = 0xc0000; + gvram_brg_resource.end = 0xdffff; + } + + request_resource(&iomem_resource, &tvram_resource); + request_resource(&iomem_resource, &gvram_brg_resource); + if (!PC9800_HIGHRESO_P()) + request_resource(&iomem_resource, &gvram_e_resource); + + for (i = 0; i < STANDARD_IO_RESOURCES; i++) + request_resource(&ioport_resource, standard_io_resources + i); + + if (PC9800_HIGHRESO_P() || PC9800_9821_P()) { + static char graphics[] = "graphics"; + static struct resource graphics_resources[] = { + { graphics, 0x9a0, 0x9a0, 0 }, + { graphics, 0x9a2, 0x9a2, 0 }, + { graphics, 0x9a4, 0x9a4, 0 }, + { graphics, 0x9a6, 0x9a6, 0 }, + { graphics, 0x9a8, 0x9a8, 0 }, + { graphics, 0x9aa, 0x9aa, 0 }, + { graphics, 0x9ac, 0x9ac, 0 }, + { graphics, 0x9ae, 0x9ae, 0 }, + }; + +#define GRAPHICS_RESOURCES (sizeof(graphics_resources)/sizeof(struct resource)) + + for (i = 0; i < GRAPHICS_RESOURCES; i++) + request_resource(&ioport_resource, graphics_resources + i); + } +} + +#endif /* !_MACH_RESOURCES_H */ diff -urN linux/arch/i386/mach-pc9800/mach_time.h linux98/arch/i386/mach-pc9800/mach_time.h --- linux/arch/i386/mach-pc9800/mach_time.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/mach_time.h Mon Oct 21 11:23:06 2002 @@ -0,0 +1,136 @@ +/* + * arch/i386/mach-pc9800/mach_time.h + * + * Machine specific set RTC function for PC-9800. + * Written by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_TIME_H +#define _MACH_TIME_H + +#include <linux/upd4990a.h> + +/* for check timing call set_rtc_mmss() */ +/* used in arch/i386/time.c::do_timer_interrupt() */ +/* + * Because PC-9800's RTC (NEC uPD4990A) does not allow setting + * time partially, we always have to read-modify-write the + * entire time (including year) so that set_rtc_mmss() will + * take quite much time to execute. You may want to relax + * RTC resetting interval (currently ~11 minuts)... + */ +#define TIME1 1000000 +#define TIME2 0 + +static inline int mach_set_rtc_mmss(unsigned long nowtime) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + struct upd4990a_raw_data data; + + upd4990a_get_time(&data, 1); + cmos_minutes = (data.min >> 4) * 10 + (data.min & 0xf); + + /* + * since we're only adjusting minutes and seconds, + * don't interfere with hour overflow. This avoids + * messing with unknown time zones but requires your + * RTC not to be off by more than 15 minutes + */ + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) + real_minutes += 30; /* correct for half hour time zone */ + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + u8 temp_seconds = (real_seconds / 10) * 16 + real_seconds % 10; + u8 temp_minutes = (real_minutes / 10) * 16 + real_minutes % 10; + + if (data.sec != temp_seconds || data.min != temp_minutes) { + data.sec = temp_seconds; + data.min = temp_minutes; + upd4990a_set_time(&data, 1); + } + } else { + printk(KERN_WARNING + "set_rtc_mmss: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + /* uPD4990A users' manual says we should issue Register Hold + * command after reading time, or future Time Read command + * may not work. When we have set the time, this also starts + * the clock. + */ + upd4990a_serial_command(UPD4990A_REGISTER_HOLD); + + return retval; +} + +#define RTC_SANITY_CHECK + +static inline unsigned long mach_get_cmos_time(void) +{ + int i; + u8 prev, cur; + unsigned int year; +#ifdef RTC_SANITY_CHECK + int retry_count; +#endif + + struct upd4990a_raw_data data; + +#ifdef RTC_SANITY_CHECK + retry_count = 0; + retry: +#endif + /* Connect uPD4990A's DATA OUT pin to its 1Hz reference clock. */ + upd4990a_serial_command(UPD4990A_REGISTER_HOLD); + + /* Catch rising edge of reference clock. */ + prev = ~UPD4990A_READ_DATA(); + for (i = 0; i < 1800000; i++) { /* may take up to 1 second... */ + __asm__ ("outb %%al,%0" : : "N" (0x5f)); /* 0.6usec delay */ + cur = UPD4990A_READ_DATA(); + if (!(prev & cur & 1)) + break; + prev = ~cur; + } + + upd4990a_get_time(&data, 0); + +#ifdef RTC_SANITY_CHECK +# define BCD_VALID_P(x, hi) (((x) & 0x0f) <= 9 && (x) <= 0x ## hi) +# define DATA ((const unsigned char *) &data) + + if (!BCD_VALID_P(data.sec, 59) || + !BCD_VALID_P(data.min, 59) || + !BCD_VALID_P(data.hour, 23) || + data.mday == 0 || !BCD_VALID_P(data.mday, 31) || + data.wday > 6 || + data.mon < 1 || 12 < data.mon || + !BCD_VALID_P(data.year, 99)) { + printk(KERN_ERR "RTC clock data is invalid! " + "(%02X %02X %02X %02X %02X %02X) - ", + DATA[0], DATA[1], DATA[2], DATA[3], DATA[4], DATA[5]); + if (++retry_count < 3) { + printk("retrying (%d)\n", retry_count); + goto retry; + } + printk("giving up, continuing\n"); + } + +# undef BCD_VALID_P +# undef DATA +#endif /* RTC_SANITY_CHECK */ + +#define CVT(x) (((x) & 0xF) + ((x) >> 4) * 10) + if ((year = CVT(data.year) + 1900) < 1995) + year += 100; + return mktime(year, data.mon, CVT(data.mday), + CVT(data.hour), CVT(data.min), CVT(data.sec)); +#undef CVT +} + +#endif /* !_MACH_TIME_H */ diff -urN linux/arch/i386/mach-pc9800/mach_traps.h linux98/arch/i386/mach-pc9800/mach_traps.h --- linux/arch/i386/mach-pc9800/mach_traps.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/mach_traps.h Tue Nov 5 22:46:55 2002 @@ -0,0 +1,27 @@ +/* + * arch/i386/mach-pc9800/mach_traps.h + * + * Machine specific NMI handling for PC-9800. + * Written by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_TRAPS_H +#define _MACH_TRAPS_H + +static inline void clear_mem_error(unsigned char reason) +{ + outb(0x08, 0x37); + outb(0x09, 0x37); +} + +static inline unsigned char get_nmi_reason(void) +{ + return (inb(0x33) & 6) ? 0x80 : 0; +} + +static inline void reassert_nmi(void) +{ + outb(0x09, 0x50); /* disable NMI once */ + outb(0x09, 0x52); /* re-enable it */ +} + +#endif /* !_MACH_TRAPS_H */ diff -urN linux/arch/i386/mach-pc9800/smpboot_hooks.h linux98/arch/i386/mach-pc9800/smpboot_hooks.h --- linux/arch/i386/mach-pc9800/smpboot_hooks.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-pc9800/smpboot_hooks.h Sun Sep 22 06:56:46 2002 @@ -0,0 +1,33 @@ +/* two abstractions specific to kernel/smpboot.c, mainly to cater to visws + * which needs to alter them. */ + +static inline void smpboot_clear_io_apic_irqs(void) +{ + io_apic_irqs = 0; +} + +static inline void smpboot_setup_warm_reset_vector(void) +{ + /* + * Install writable page 0 entry to set BIOS data area. + */ + local_flush_tlb(); + + /* + * Paranoid: Set warm reset code and vector here back + * to default values. + */ + outb(0x0f, 0x37); /* SHUT0 = 1 */ + + *((volatile long *) phys_to_virt(0x404)) = 0; +} + +static inline void smpboot_setup_io_apic(void) +{ + /* + * Here we can be sure that there is an IO-APIC in the system. Let's + * go and set it up: + */ + if (!skip_ioapic_setup && nr_ioapics) + setup_IO_APIC(); +} diff -urN linux/arch/i386/mach-summit/calibrate_tsc.h linux98/arch/i386/mach-summit/calibrate_tsc.h --- linux/arch/i386/mach-summit/calibrate_tsc.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-summit/calibrate_tsc.h Mon Oct 21 02:46:34 2002 @@ -0,0 +1 @@ +#include "../mach-generic/calibrate_tsc.h" diff -urN linux/arch/i386/mach-summit/mach_resources.h linux98/arch/i386/mach-summit/mach_resources.h --- linux/arch/i386/mach-summit/mach_resources.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-summit/mach_resources.h Sun Oct 20 18:11:27 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_resources.h" diff -urN linux/arch/i386/mach-summit/mach_time.h linux98/arch/i386/mach-summit/mach_time.h --- linux/arch/i386/mach-summit/mach_time.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-summit/mach_time.h Sun Oct 20 20:00:44 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_time.h" diff -urN linux/arch/i386/mach-summit/mach_traps.h linux98/arch/i386/mach-summit/mach_traps.h --- linux/arch/i386/mach-summit/mach_traps.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-summit/mach_traps.h Mon Oct 21 02:48:48 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_traps.h" diff -urN linux/arch/i386/mach-visws/calibrate_tsc.h linux98/arch/i386/mach-visws/calibrate_tsc.h --- linux/arch/i386/mach-visws/calibrate_tsc.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-visws/calibrate_tsc.h Mon Oct 21 02:46:34 2002 @@ -0,0 +1 @@ +#include "../mach-generic/calibrate_tsc.h" diff -urN linux/arch/i386/mach-visws/mach_resources.h linux98/arch/i386/mach-visws/mach_resources.h --- linux/arch/i386/mach-visws/mach_resources.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-visws/mach_resources.h Sun Oct 20 18:11:27 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_resources.h" diff -urN linux/arch/i386/mach-visws/mach_time.h linux98/arch/i386/mach-visws/mach_time.h --- linux/arch/i386/mach-visws/mach_time.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-visws/mach_time.h Sun Oct 20 20:00:44 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_time.h" diff -urN linux/arch/i386/mach-visws/mach_traps.h linux98/arch/i386/mach-visws/mach_traps.h --- linux/arch/i386/mach-visws/mach_traps.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-visws/mach_traps.h Mon Oct 21 02:48:48 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_traps.h" diff -urN linux/arch/i386/mach-voyager/calibrate_tsc.h linux98/arch/i386/mach-voyager/calibrate_tsc.h --- linux/arch/i386/mach-voyager/calibrate_tsc.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-voyager/calibrate_tsc.h Mon Oct 21 02:46:34 2002 @@ -0,0 +1 @@ +#include "../mach-generic/calibrate_tsc.h" diff -urN linux/arch/i386/mach-voyager/mach_resources.h linux98/arch/i386/mach-voyager/mach_resources.h --- linux/arch/i386/mach-voyager/mach_resources.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-voyager/mach_resources.h Sun Oct 20 18:11:27 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_resources.h" diff -urN linux/arch/i386/mach-voyager/mach_time.h linux98/arch/i386/mach-voyager/mach_time.h --- linux/arch/i386/mach-voyager/mach_time.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-voyager/mach_time.h Sun Oct 20 20:00:44 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_time.h" diff -urN linux/arch/i386/mach-voyager/mach_traps.h linux98/arch/i386/mach-voyager/mach_traps.h --- linux/arch/i386/mach-voyager/mach_traps.h Thu Jan 1 09:00:00 1970 +++ linux98/arch/i386/mach-voyager/mach_traps.h Mon Oct 21 02:48:48 2002 @@ -0,0 +1 @@ +#include "../mach-generic/mach_traps.h"
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