diff options
Diffstat (limited to 'arch/x86/mach-voyager')
| -rw-r--r-- | arch/x86/mach-voyager/setup.c | 34 | ||||
| -rw-r--r-- | arch/x86/mach-voyager/voyager_basic.c | 132 | ||||
| -rw-r--r-- | arch/x86/mach-voyager/voyager_cat.c | 601 | ||||
| -rw-r--r-- | arch/x86/mach-voyager/voyager_smp.c | 690 | ||||
| -rw-r--r-- | arch/x86/mach-voyager/voyager_thread.c | 52 |
5 files changed, 727 insertions, 782 deletions
diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c index 3bef977..5ae5466 100644 --- a/arch/x86/mach-voyager/setup.c +++ b/arch/x86/mach-voyager/setup.c @@ -37,14 +37,14 @@ void __init pre_setup_arch_hook(void) { /* Voyagers run their CPUs from independent clocks, so disable * the TSC code because we can't sync them */ - tsc_disable = 1; + setup_clear_cpu_cap(X86_FEATURE_TSC); } void __init trap_init_hook(void) { } -static struct irqaction irq0 = { +static struct irqaction irq0 = { .handler = timer_interrupt, .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL, .mask = CPU_MASK_NONE, @@ -59,44 +59,47 @@ void __init time_init_hook(void) /* Hook for machine specific memory setup. */ -char * __init machine_specific_memory_setup(void) +char *__init machine_specific_memory_setup(void) { char *who; who = "NOT VOYAGER"; - if(voyager_level == 5) { + if (voyager_level == 5) { __u32 addr, length; int i; who = "Voyager-SUS"; e820.nr_map = 0; - for(i=0; voyager_memory_detect(i, &addr, &length); i++) { + for (i = 0; voyager_memory_detect(i, &addr, &length); i++) { add_memory_region(addr, length, E820_RAM); } return who; - } else if(voyager_level == 4) { + } else if (voyager_level == 4) { __u32 tom; - __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8; + __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT) << 8; /* select the DINO config space */ outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT); /* Read DINO top of memory register */ tom = ((inb(catbase + 0x4) & 0xf0) << 16) - + ((inb(catbase + 0x5) & 0x7f) << 24); + + ((inb(catbase + 0x5) & 0x7f) << 24); - if(inb(catbase) != VOYAGER_DINO) { - printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n"); - tom = (boot_params.screen_info.ext_mem_k)<<10; + if (inb(catbase) != VOYAGER_DINO) { + printk(KERN_ERR + "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n"); + tom = (boot_params.screen_info.ext_mem_k) << 10; } who = "Voyager-TOM"; add_memory_region(0, 0x9f000, E820_RAM); /* map from 1M to top of memory */ - add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM); + add_memory_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024, + E820_RAM); /* FIXME: Should check the ASICs to see if I need to * take out the 8M window. Just do it at the moment * */ - add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED); + add_memory_region(8 * 1024 * 1024, 8 * 1024 * 1024, + E820_RESERVED); return who; } @@ -114,8 +117,7 @@ char * __init machine_specific_memory_setup(void) unsigned long mem_size; /* compare results from other methods and take the greater */ - if (boot_params.alt_mem_k - < boot_params.screen_info.ext_mem_k) { + if (boot_params.alt_mem_k < boot_params.screen_info.ext_mem_k) { mem_size = boot_params.screen_info.ext_mem_k; who = "BIOS-88"; } else { @@ -126,6 +128,6 @@ char * __init machine_specific_memory_setup(void) e820.nr_map = 0; add_memory_region(0, LOWMEMSIZE(), E820_RAM); add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); - } + } return who; } diff --git a/arch/x86/mach-voyager/voyager_basic.c b/arch/x86/mach-voyager/voyager_basic.c index 9b77b39..6a949e4 100644 --- a/arch/x86/mach-voyager/voyager_basic.c +++ b/arch/x86/mach-voyager/voyager_basic.c @@ -35,7 +35,7 @@ /* * Power off function, if any */ -void (*pm_power_off)(void); +void (*pm_power_off) (void); EXPORT_SYMBOL(pm_power_off); int voyager_level = 0; @@ -43,39 +43,38 @@ int voyager_level = 0; struct voyager_SUS *voyager_SUS = NULL; #ifdef CONFIG_SMP -static void -voyager_dump(int dummy1, struct tty_struct *dummy3) +static void voyager_dump(int dummy1, struct tty_struct *dummy3) { /* get here via a sysrq */ voyager_smp_dump(); } static struct sysrq_key_op sysrq_voyager_dump_op = { - .handler = voyager_dump, - .help_msg = "Voyager", - .action_msg = "Dump Voyager Status", + .handler = voyager_dump, + .help_msg = "Voyager", + .action_msg = "Dump Voyager Status", }; #endif -void -voyager_detect(struct voyager_bios_info *bios) +void voyager_detect(struct voyager_bios_info *bios) { - if(bios->len != 0xff) { - int class = (bios->class_1 << 8) - | (bios->class_2 & 0xff); + if (bios->len != 0xff) { + int class = (bios->class_1 << 8) + | (bios->class_2 & 0xff); printk("Voyager System detected.\n" " Class %x, Revision %d.%d\n", class, bios->major, bios->minor); - if(class == VOYAGER_LEVEL4) + if (class == VOYAGER_LEVEL4) voyager_level = 4; - else if(class < VOYAGER_LEVEL5_AND_ABOVE) + else if (class < VOYAGER_LEVEL5_AND_ABOVE) voyager_level = 3; else voyager_level = 5; printk(" Architecture Level %d\n", voyager_level); - if(voyager_level < 4) - printk("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n"); + if (voyager_level < 4) + printk + ("\n**WARNING**: Voyager HAL only supports Levels 4 and 5 Architectures at the moment\n\n"); /* install the power off handler */ pm_power_off = voyager_power_off; #ifdef CONFIG_SMP @@ -86,15 +85,13 @@ voyager_detect(struct voyager_bios_info *bios) } } -void -voyager_system_interrupt(int cpl, void *dev_id) +void voyager_system_interrupt(int cpl, void *dev_id) { printk("Voyager: detected system interrupt\n"); } /* Routine to read information from the extended CMOS area */ -__u8 -voyager_extended_cmos_read(__u16 addr) +__u8 voyager_extended_cmos_read(__u16 addr) { outb(addr & 0xff, 0x74); outb((addr >> 8) & 0xff, 0x75); @@ -108,12 +105,11 @@ voyager_extended_cmos_read(__u16 addr) typedef struct ClickMap { struct Entry { - __u32 Address; - __u32 Length; + __u32 Address; + __u32 Length; } Entry[CLICK_ENTRIES]; } ClickMap_t; - /* This routine is pretty much an awful hack to read the bios clickmap by * mapping it into page 0. There are usually three regions in the map: * Base Memory @@ -122,8 +118,7 @@ typedef struct ClickMap { * * Returns are 0 for failure and 1 for success on extracting region. */ -int __init -voyager_memory_detect(int region, __u32 *start, __u32 *length) +int __init voyager_memory_detect(int region, __u32 * start, __u32 * length) { int i; int retval = 0; @@ -132,13 +127,14 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) unsigned long map_addr; unsigned long old; - if(region >= CLICK_ENTRIES) { + if (region >= CLICK_ENTRIES) { printk("Voyager: Illegal ClickMap region %d\n", region); return 0; } - for(i = 0; i < sizeof(cmos); i++) - cmos[i] = voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i); + for (i = 0; i < sizeof(cmos); i++) + cmos[i] = + voyager_extended_cmos_read(VOYAGER_MEMORY_CLICKMAP + i); map_addr = *(unsigned long *)cmos; @@ -147,10 +143,10 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); local_flush_tlb(); /* now clear everything out but page 0 */ - map = (ClickMap_t *)(map_addr & (~PAGE_MASK)); + map = (ClickMap_t *) (map_addr & (~PAGE_MASK)); /* zero length is the end of the clickmap */ - if(map->Entry[region].Length != 0) { + if (map->Entry[region].Length != 0) { *length = map->Entry[region].Length * CLICK_SIZE; *start = map->Entry[region].Address; retval = 1; @@ -165,10 +161,9 @@ voyager_memory_detect(int region, __u32 *start, __u32 *length) /* voyager specific handling code for timer interrupts. Used to hand * off the timer tick to the SMP code, since the VIC doesn't have an * internal timer (The QIC does, but that's another story). */ -void -voyager_timer_interrupt(void) +void voyager_timer_interrupt(void) { - if((jiffies & 0x3ff) == 0) { + if ((jiffies & 0x3ff) == 0) { /* There seems to be something flaky in either * hardware or software that is resetting the timer 0 @@ -186,18 +181,20 @@ voyager_timer_interrupt(void) __u16 val; spin_lock(&i8253_lock); - + outb_p(0x00, 0x43); val = inb_p(0x40); val |= inb(0x40) << 8; spin_unlock(&i8253_lock); - if(val > LATCH) { - printk("\nVOYAGER: countdown timer value too high (%d), resetting\n\n", val); + if (val > LATCH) { + printk + ("\nVOYAGER: countdown timer value too high (%d), resetting\n\n", + val); spin_lock(&i8253_lock); - outb(0x34,0x43); - outb_p(LATCH & 0xff , 0x40); /* LSB */ - outb(LATCH >> 8 , 0x40); /* MSB */ + outb(0x34, 0x43); + outb_p(LATCH & 0xff, 0x40); /* LSB */ + outb(LATCH >> 8, 0x40); /* MSB */ spin_unlock(&i8253_lock); } } @@ -206,14 +203,13 @@ voyager_timer_interrupt(void) #endif } -void -voyager_power_off(void) +void voyager_power_off(void) { printk("VOYAGER Power Off\n"); - if(voyager_level == 5) { + if (voyager_level == 5) { voyager_cat_power_off(); - } else if(voyager_level == 4) { + } else if (voyager_level == 4) { /* This doesn't apparently work on most L4 machines, * but the specs say to do this to get automatic power * off. Unfortunately, if it doesn't power off the @@ -222,10 +218,8 @@ voyager_power_off(void) #if 0 int port; - /* enable the voyager Configuration Space */ - outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, - VOYAGER_MC_SETUP); + outb((inb(VOYAGER_MC_SETUP) & 0xf0) | 0x8, VOYAGER_MC_SETUP); /* the port for the power off flag is an offset from the floating base */ port = (inb(VOYAGER_SSPB_RELOCATION_PORT) << 8) + 0x21; @@ -235,62 +229,57 @@ voyager_power_off(void) } /* and wait for it to happen */ local_irq_disable(); - for(;;) + for (;;) halt(); } /* copied from process.c */ -static inline void -kb_wait(void) +static inline void kb_wait(void) { int i; - for (i=0; i<0x10000; i++) + for (i = 0; i < 0x10000; i++) if ((inb_p(0x64) & 0x02) == 0) break; } -void -machine_shutdown(void) +void machine_shutdown(void) { /* Architecture specific shutdown needed before a kexec */ } -void -machine_restart(char *cmd) +void machine_restart(char *cmd) { printk("Voyager Warm Restart\n"); kb_wait(); - if(voyager_level == 5) { + if (voyager_level == 5) { /* write magic values to the RTC to inform system that * shutdown is beginning */ outb(0x8f, 0x70); - outb(0x5 , 0x71); - + outb(0x5, 0x71); + udelay(50); - outb(0xfe,0x64); /* pull reset low */ - } else if(voyager_level == 4) { - __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8; + outb(0xfe, 0x64); /* pull reset low */ + } else if (voyager_level == 4) { + __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT) << 8; __u8 basebd = inb(VOYAGER_MC_SETUP); - + outb(basebd | 0x08, VOYAGER_MC_SETUP); outb(0x02, catbase + 0x21); } local_irq_disable(); - for(;;) + for (;;) halt(); } -void -machine_emergency_restart(void) +void machine_emergency_restart(void) { /*for now, just hook this to a warm restart */ machine_restart(NULL); } -void -mca_nmi_hook(void) +void mca_nmi_hook(void) { __u8 dumpval __maybe_unused = inb(0xf823); __u8 swnmi __maybe_unused = inb(0xf813); @@ -301,8 +290,8 @@ mca_nmi_hook(void) /* clear swnmi */ outb(0xff, 0xf813); /* tell SUS to ignore dump */ - if(voyager_level == 5 && voyager_SUS != NULL) { - if(voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) { + if (voyager_level == 5 && voyager_SUS != NULL) { + if (voyager_SUS->SUS_mbox == VOYAGER_DUMP_BUTTON_NMI) { voyager_SUS->kernel_mbox = VOYAGER_NO_COMMAND; voyager_SUS->kernel_flags |= VOYAGER_OS_IN_PROGRESS; udelay(1000); @@ -310,15 +299,14 @@ mca_nmi_hook(void) voyager_SUS->kernel_flags &= ~VOYAGER_OS_IN_PROGRESS; } } - printk(KERN_ERR "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n", smp_processor_id()); + printk(KERN_ERR + "VOYAGER: Dump switch pressed, printing CPU%d tracebacks\n", + smp_processor_id()); show_stack(NULL, NULL); show_state(); } - - -void -machine_halt(void) +void machine_halt(void) { /* treat a halt like a power off */ machine_power_off(); diff --git a/arch/x86/mach-voyager/voyager_cat.c b/arch/x86/mach-voyager/voyager_cat.c index 2132ca6..17a7904f7 100644 --- a/arch/x86/mach-voyager/voyager_cat.c +++ b/arch/x86/mach-voyager/voyager_cat.c @@ -39,34 +39,32 @@ #define CAT_DATA (sspb + 0xd) /* the internal cat functions */ -static void cat_pack(__u8 *msg, __u16 start_bit, __u8 *data, - __u16 num_bits); -static void cat_unpack(__u8 *msg, __u16 start_bit, __u8 *data, +static void cat_pack(__u8 * msg, __u16 start_bit, __u8 * data, __u16 num_bits); +static void cat_unpack(__u8 * msg, __u16 start_bit, __u8 * data, __u16 num_bits); -static void cat_build_header(__u8 *header, const __u16 len, +static void cat_build_header(__u8 * header, const __u16 len, const __u16 smallest_reg_bits, const __u16 longest_reg_bits); -static int cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, +static int cat_sendinst(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 op); -static int cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp, - __u8 reg, __u8 *value); -static int cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, +static int cat_getdata(voyager_module_t * modp, voyager_asic_t * asicp, + __u8 reg, __u8 * value); +static int cat_shiftout(__u8 * data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits); -static int cat_write(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, +static int cat_write(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 value); -static int cat_read(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, - __u8 *value); -static int cat_subread(voyager_module_t *modp, voyager_asic_t *asicp, +static int cat_read(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, + __u8 * value); +static int cat_subread(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset, __u16 len, void *buf); -static int cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp, +static int cat_senddata(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 value); -static int cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp); -static int cat_connect(voyager_module_t *modp, voyager_asic_t *asicp); +static int cat_disconnect(voyager_module_t * modp, voyager_asic_t * asicp); +static int cat_connect(voyager_module_t * modp, voyager_asic_t * asicp); -static inline const char * -cat_module_name(int module_id) +static inline const char *cat_module_name(int module_id) { - switch(module_id) { + switch (module_id) { case 0x10: return "Processor Slot 0"; case 0x11: @@ -105,14 +103,14 @@ voyager_module_t *voyager_cat_list; /* the I/O port assignments for the VIC and QIC */ static struct resource vic_res = { - .name = "Voyager Interrupt Controller", - .start = 0xFC00, - .end = 0xFC6F + .name = "Voyager Interrupt Controller", + .start = 0xFC00, + .end = 0xFC6F }; static struct resource qic_res = { - .name = "Quad Interrupt Controller", - .start = 0xFC70, - .end = 0xFCFF + .name = "Quad Interrupt Controller", + .start = 0xFC70, + .end = 0xFCFF }; /* This function is used to pack a data bit stream inside a message. @@ -120,7 +118,7 @@ static struct resource qic_res = { * Note: This function assumes that any unused bit in the data stream * is set to zero so that the ors will work correctly */ static void -cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) +cat_pack(__u8 * msg, const __u16 start_bit, __u8 * data, const __u16 num_bits) { /* compute initial shift needed */ const __u16 offset = start_bit % BITS_PER_BYTE; @@ -130,7 +128,7 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) int i; /* adjust if we have more than a byte of residue */ - if(residue >= BITS_PER_BYTE) { + if (residue >= BITS_PER_BYTE) { residue -= BITS_PER_BYTE; len++; } @@ -138,24 +136,25 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) /* clear out the bits. We assume here that if len==0 then * residue >= offset. This is always true for the catbus * operations */ - msg[byte] &= 0xff << (BITS_PER_BYTE - offset); + msg[byte] &= 0xff << (BITS_PER_BYTE - offset); msg[byte++] |= data[0] >> offset; - if(len == 0) + if (len == 0) return; - for(i = 1; i < len; i++) - msg[byte++] = (data[i-1] << (BITS_PER_BYTE - offset)) - | (data[i] >> offset); - if(residue != 0) { + for (i = 1; i < len; i++) + msg[byte++] = (data[i - 1] << (BITS_PER_BYTE - offset)) + | (data[i] >> offset); + if (residue != 0) { __u8 mask = 0xff >> residue; - __u8 last_byte = data[i-1] << (BITS_PER_BYTE - offset) - | (data[i] >> offset); - + __u8 last_byte = data[i - 1] << (BITS_PER_BYTE - offset) + | (data[i] >> offset); + last_byte &= ~mask; msg[byte] &= mask; msg[byte] |= last_byte; } return; } + /* unpack the data again (same arguments as cat_pack()). data buffer * must be zero populated. * @@ -163,7 +162,7 @@ cat_pack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) * data (starting at bit 0 in data). */ static void -cat_unpack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) +cat_unpack(__u8 * msg, const __u16 start_bit, __u8 * data, const __u16 num_bits) { /* compute initial shift needed */ const __u16 offset = start_bit % BITS_PER_BYTE; @@ -172,97 +171,97 @@ cat_unpack(__u8 *msg, const __u16 start_bit, __u8 *data, const __u16 num_bits) __u16 byte = start_bit / BITS_PER_BYTE; int i; - if(last_bits != 0) + if (last_bits != 0) len++; /* special case: want < 8 bits from msg and we can get it from * a single byte of the msg */ - if(len == 0 && BITS_PER_BYTE - offset >= num_bits) { + if (len == 0 && BITS_PER_BYTE - offset >= num_bits) { data[0] = msg[byte] << offset; data[0] &= 0xff >> (BITS_PER_BYTE - num_bits); return; } - for(i = 0; i < len; i++) { + for (i = 0; i < len; i++) { /* this annoying if has to be done just in case a read of * msg one beyond the array causes a panic */ - if(offset != 0) { + if (offset != 0) { data[i] = msg[byte++] << offset; data[i] |= msg[byte] >> (BITS_PER_BYTE - offset); - } - else { + } else { data[i] = msg[byte++]; } } /* do we need to truncate the final byte */ - if(last_bits != 0) { - data[i-1] &= 0xff << (BITS_PER_BYTE - last_bits); + if (last_bits != 0) { + data[i - 1] &= 0xff << (BITS_PER_BYTE - last_bits); } return; } static void -cat_build_header(__u8 *header, const __u16 len, const __u16 smallest_reg_bits, +cat_build_header(__u8 * header, const __u16 len, const __u16 smallest_reg_bits, const __u16 longest_reg_bits) { int i; __u16 start_bit = (smallest_reg_bits - 1) % BITS_PER_BYTE; __u8 *last_byte = &header[len - 1]; - if(start_bit == 0) + if (start_bit == 0) start_bit = 1; /* must have at least one bit in the hdr */ - - for(i=0; i < len; i++) + + for (i = 0; i < len; i++) header[i] = 0; - for(i = start_bit; i > 0; i--) + for (i = start_bit; i > 0; i--) *last_byte = ((*last_byte) << 1) + 1; } static int -cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op) +cat_sendinst(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 op) { __u8 parity, inst, inst_buf[4] = { 0 }; __u8 iseq[VOYAGER_MAX_SCAN_PATH], hseq[VOYAGER_MAX_REG_SIZE]; __u16 ibytes, hbytes, padbits; int i; - + /* * Parity is the parity of the register number + 1 (READ_REGISTER * and WRITE_REGISTER always add '1' to the number of bits == 1) */ - parity = (__u8)(1 + (reg & 0x01) + - ((__u8)(reg & 0x02) >> 1) + - ((__u8)(reg & 0x04) >> 2) + - ((__u8)(reg & 0x08) >> 3)) % 2; + parity = (__u8) (1 + (reg & 0x01) + + ((__u8) (reg & 0x02) >> 1) + + ((__u8) (reg & 0x04) >> 2) + + ((__u8) (reg & 0x08) >> 3)) % 2; inst = ((parity << 7) | (reg << 2) | op); outb(VOYAGER_CAT_IRCYC, CAT_CMD); - if(!modp->scan_path_connected) { - if(asicp->asic_id != VOYAGER_CAT_ID) { - printk("**WARNING***: cat_sendinst has disconnected scan path not to CAT asic\n"); + if (!modp->scan_path_connected) { + if (asicp->asic_id != VOYAGER_CAT_ID) { + printk + ("**WARNING***: cat_sendinst has disconnected scan path not to CAT asic\n"); return 1; } outb(VOYAGER_CAT_HEADER, CAT_DATA); outb(inst, CAT_DATA); - if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) { + if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) { CDEBUG(("VOYAGER CAT: cat_sendinst failed to get CAT_HEADER\n")); return 1; } return 0; } ibytes = modp->inst_bits / BITS_PER_BYTE; - if((padbits = modp->inst_bits % BITS_PER_BYTE) != 0) { + if ((padbits = modp->inst_bits % BITS_PER_BYTE) != 0) { padbits = BITS_PER_BYTE - padbits; ibytes++; } hbytes = modp->largest_reg / BITS_PER_BYTE; - if(modp->largest_reg % BITS_PER_BYTE) + if (modp->largest_reg % BITS_PER_BYTE) hbytes++; CDEBUG(("cat_sendinst: ibytes=%d, hbytes=%d\n", ibytes, hbytes)); /* initialise the instruction sequence to 0xff */ - for(i=0; i < ibytes + hbytes; i++) + for (i = 0; i < ibytes + hbytes; i++) iseq[i] = 0xff; cat_build_header(hseq, hbytes, modp->smallest_reg, modp->largest_reg); cat_pack(iseq, modp->inst_bits, hseq, hbytes * BITS_PER_BYTE); @@ -271,11 +270,11 @@ cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op) cat_pack(iseq, asicp->bit_location, inst_buf, asicp->ireg_length); #ifdef VOYAGER_CAT_DEBUG printk("ins = 0x%x, iseq: ", inst); - for(i=0; i< ibytes + hbytes; i++) + for (i = 0; i < ibytes + hbytes; i++) printk("0x%x ", iseq[i]); printk("\n"); #endif - if(cat_shiftout(iseq, ibytes, hbytes, padbits)) { + if (cat_shiftout(iseq, ibytes, hbytes, padbits)) { CDEBUG(("VOYAGER CAT: cat_sendinst: cat_shiftout failed\n")); return 1; } @@ -284,72 +283,74 @@ cat_sendinst(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, __u8 op) } static int -cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, - __u8 *value) +cat_getdata(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, + __u8 * value) { - if(!modp->scan_path_connected) { - if(asicp->asic_id != VOYAGER_CAT_ID) { + if (!modp->scan_path_connected) { + if (asicp->asic_id != VOYAGER_CAT_ID) { CDEBUG(("VOYAGER CAT: ERROR: cat_getdata to CAT asic with scan path connected\n")); return 1; } - if(reg > VOYAGER_SUBADDRHI) + if (reg > VOYAGER_SUBADDRHI) outb(VOYAGER_CAT_RUN, CAT_CMD); outb(VOYAGER_CAT_DRCYC, CAT_CMD); outb(VOYAGER_CAT_HEADER, CAT_DATA); *value = inb(CAT_DATA); outb(0xAA, CAT_DATA); - if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) { + if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) { CDEBUG(("cat_getdata: failed to get VOYAGER_CAT_HEADER\n")); return 1; } return 0; - } - else { - __u16 sbits = modp->num_asics -1 + asicp->ireg_length; + } else { + __u16 sbits = modp->num_asics - 1 + asicp->ireg_length; __u16 sbytes = sbits / BITS_PER_BYTE; __u16 tbytes; - __u8 string[VOYAGER_MAX_SCAN_PATH], trailer[VOYAGER_MAX_REG_SIZE]; + __u8 string[VOYAGER_MAX_SCAN_PATH], + trailer[VOYAGER_MAX_REG_SIZE]; __u8 padbits; int i; - + outb(VOYAGER_CAT_DRCYC, CAT_CMD); - if((padbits = sbits % BITS_PER_BYTE) != 0) { + if ((padbits = sbits % BITS_PER_BYTE) != 0) { padbits = BITS_PER_BYTE - padbits; sbytes++; } tbytes = asicp->ireg_length / BITS_PER_BYTE; - if(asicp->ireg_length % BITS_PER_BYTE) + if (asicp->ireg_length % BITS_PER_BYTE) tbytes++; CDEBUG(("cat_getdata: tbytes = %d, sbytes = %d, padbits = %d\n", - tbytes, sbytes, padbits)); + tbytes, sbytes, padbits)); cat_build_header(trailer, tbytes, 1, asicp->ireg_length); - - for(i = tbytes - 1; i >= 0; i--) { + for (i = tbytes - 1; i >= 0; i--) { outb(trailer[i], CAT_DATA); string[sbytes + i] = inb(CAT_DATA); } - for(i = sbytes - 1; i >= 0; i--) { + for (i = sbytes - 1; i >= 0; i--) { outb(0xaa, CAT_DATA); string[i] = inb(CAT_DATA); } *value = 0; - cat_unpack(string, padbits + (tbytes * BITS_PER_BYTE) + asicp->asic_location, value, asicp->ireg_length); + cat_unpack(string, + padbits + (tbytes * BITS_PER_BYTE) + + asicp->asic_location, value, asicp->ireg_length); #ifdef VOYAGER_CAT_DEBUG printk("value=0x%x, string: ", *value); - for(i=0; i< tbytes+sbytes; i++) + for (i = 0; i < tbytes + sbytes; i++) printk("0x%x ", string[i]); printk("\n"); #endif - + /* sanity check the rest of the return */ - for(i=0; i < tbytes; i++) { + for (i = 0; i < tbytes; i++) { __u8 input = 0; - cat_unpack(string, padbits + (i * BITS_PER_BYTE), &input, BITS_PER_BYTE); - if(trailer[i] != input) { + cat_unpack(string, padbits + (i * BITS_PER_BYTE), + &input, BITS_PER_BYTE); + if (trailer[i] != input) { CDEBUG(("cat_getdata: failed to sanity check rest of ret(%d) 0x%x != 0x%x\n", i, input, trailer[i])); return 1; } @@ -360,14 +361,14 @@ cat_getdata(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, } static int -cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits) +cat_shiftout(__u8 * data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits) { int i; - - for(i = data_bytes + header_bytes - 1; i >= header_bytes; i--) + + for (i = data_bytes + header_bytes - 1; i >= header_bytes; i--) outb(data[i], CAT_DATA); - for(i = header_bytes - 1; i >= 0; i--) { + for (i = header_bytes - 1; i >= 0; i--) { __u8 header = 0; __u8 input; @@ -376,7 +377,7 @@ cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits) CDEBUG(("cat_shiftout: returned 0x%x\n", input)); cat_unpack(data, ((data_bytes + i) * BITS_PER_BYTE) - pad_bits, &header, BITS_PER_BYTE); - if(input != header) { + if (input != header) { CDEBUG(("VOYAGER CAT: cat_shiftout failed to return header 0x%x != 0x%x\n", input, header)); return 1; } @@ -385,57 +386,57 @@ cat_shiftout(__u8 *data, __u16 data_bytes, __u16 header_bytes, __u8 pad_bits) } static int -cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp, +cat_senddata(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 value) { outb(VOYAGER_CAT_DRCYC, CAT_CMD); - if(!modp->scan_path_connected) { - if(asicp->asic_id != VOYAGER_CAT_ID) { + if (!modp->scan_path_connected) { + if (asicp->asic_id != VOYAGER_CAT_ID) { CDEBUG(("VOYAGER CAT: ERROR: scan path disconnected when asic != CAT\n")); return 1; } outb(VOYAGER_CAT_HEADER, CAT_DATA); outb(value, CAT_DATA); - if(inb(CAT_DATA) != VOYAGER_CAT_HEADER) { + if (inb(CAT_DATA) != VOYAGER_CAT_HEADER) { CDEBUG(("cat_senddata: failed to get correct header response to sent data\n")); return 1; } - if(reg > VOYAGER_SUBADDRHI) { + if (reg > VOYAGER_SUBADDRHI) { outb(VOYAGER_CAT_RUN, CAT_CMD); outb(VOYAGER_CAT_END, CAT_CMD); outb(VOYAGER_CAT_RUN, CAT_CMD); } - + return 0; - } - else { + } else { __u16 hbytes = asicp->ireg_length / BITS_PER_BYTE; - __u16 dbytes = (modp->num_asics - 1 + asicp->ireg_length)/BITS_PER_BYTE; - __u8 padbits, dseq[VOYAGER_MAX_SCAN_PATH], - hseq[VOYAGER_MAX_REG_SIZE]; + __u16 dbytes = + (modp->num_asics - 1 + asicp->ireg_length) / BITS_PER_BYTE; + __u8 padbits, dseq[VOYAGER_MAX_SCAN_PATH], + hseq[VOYAGER_MAX_REG_SIZE]; int i; - if((padbits = (modp->num_asics - 1 - + asicp->ireg_length) % BITS_PER_BYTE) != 0) { + if ((padbits = (modp->num_asics - 1 + + asicp->ireg_length) % BITS_PER_BYTE) != 0) { padbits = BITS_PER_BYTE - padbits; dbytes++; } - if(asicp->ireg_length % BITS_PER_BYTE) + if (asicp->ireg_length % BITS_PER_BYTE) hbytes++; - + cat_build_header(hseq, hbytes, 1, asicp->ireg_length); - - for(i = 0; i < dbytes + hbytes; i++) + + for (i = 0; i < dbytes + hbytes; i++) dseq[i] = 0xff; CDEBUG(("cat_senddata: dbytes=%d, hbytes=%d, padbits=%d\n", dbytes, hbytes, padbits)); cat_pack(dseq, modp->num_asics - 1 + asicp->ireg_length, hseq, hbytes * BITS_PER_BYTE); - cat_pack(dseq, asicp->asic_location, &value, + cat_pack(dseq, asicp->asic_location, &value, asicp->ireg_length); #ifdef VOYAGER_CAT_DEBUG printk("dseq "); - for(i=0; i<hbytes+dbytes; i++) { + for (i = 0; i < hbytes + dbytes; i++) { printk("0x%x ", dseq[i]); } printk("\n"); @@ -445,121 +446,125 @@ cat_senddata(voyager_module_t *modp, voyager_asic_t *asicp, } static int -cat_write(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, - __u8 value) +cat_write(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, __u8 value) { - if(cat_sendinst(modp, asicp, reg, VOYAGER_WRITE_CONFIG)) + if (cat_sendinst(modp, asicp, reg, VOYAGER_WRITE_CONFIG)) return 1; return cat_senddata(modp, asicp, reg, value); } static int -cat_read(voyager_module_t *modp, voyager_asic_t *asicp, __u8 reg, - __u8 *value) +cat_read(voyager_module_t * modp, voyager_asic_t * asicp, __u8 reg, + __u8 * value) { - if(cat_sendinst(modp, asicp, reg, VOYAGER_READ_CONFIG)) + if (cat_sendinst(modp, asicp, reg, VOYAGER_READ_CONFIG)) return 1; return cat_getdata(modp, asicp, reg, value); } static int -cat_subaddrsetup(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset, +cat_subaddrsetup(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset, __u16 len) { __u8 val; - if(len > 1) { + if (len > 1) { /* set auto increment */ __u8 newval; - - if(cat_read(modp, asicp, VOYAGER_AUTO_INC_REG, &val)) { + + if (cat_read(modp, asicp, VOYAGER_AUTO_INC_REG, &val)) { CDEBUG(("cat_subaddrsetup: read of VOYAGER_AUTO_INC_REG failed\n")); return 1; } - CDEBUG(("cat_subaddrsetup: VOYAGER_AUTO_INC_REG = 0x%x\n", val)); + CDEBUG(("cat_subaddrsetup: VOYAGER_AUTO_INC_REG = 0x%x\n", + val)); newval = val | VOYAGER_AUTO_INC; - if(newval != val) { - if(cat_write(modp, asicp, VOYAGER_AUTO_INC_REG, val)) { + if (newval != val) { + if (cat_write(modp, asicp, VOYAGER_AUTO_INC_REG, val)) { CDEBUG(("cat_subaddrsetup: write to VOYAGER_AUTO_INC_REG failed\n")); return 1; } } } - if(cat_write(modp, asicp, VOYAGER_SUBADDRLO, (__u8)(offset &0xff))) { + if (cat_write(modp, asicp, VOYAGER_SUBADDRLO, (__u8) (offset & 0xff))) { CDEBUG(("cat_subaddrsetup: write to SUBADDRLO failed\n")); return 1; } - if(asicp->subaddr > VOYAGER_SUBADDR_LO) { - if(cat_write(modp, asicp, VOYAGER_SUBADDRHI, (__u8)(offset >> 8))) { + if (asicp->subaddr > VOYAGER_SUBADDR_LO) { + if (cat_write + (modp, asicp, VOYAGER_SUBADDRHI, (__u8) (offset >> 8))) { CDEBUG(("cat_subaddrsetup: write to SUBADDRHI failed\n")); return 1; } cat_read(modp, asicp, VOYAGER_SUBADDRHI, &val); - CDEBUG(("cat_subaddrsetup: offset = %d, hi = %d\n", offset, val)); + CDEBUG(("cat_subaddrsetup: offset = %d, hi = %d\n", offset, + val)); } cat_read(modp, asicp, VOYAGER_SUBADDRLO, &val); CDEBUG(("cat_subaddrsetup: offset = %d, lo = %d\n", offset, val)); return 0; } - + static int -cat_subwrite(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset, - __u16 len, void *buf) +cat_subwrite(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset, + __u16 len, void *buf) { int i, retval; /* FIXME: need special actions for VOYAGER_CAT_ID here */ - if(asicp->asic_id == VOYAGER_CAT_ID) { + if (asicp->asic_id == VOYAGER_CAT_ID) { CDEBUG(("cat_subwrite: ATTEMPT TO WRITE TO CAT ASIC\n")); /* FIXME -- This is supposed to be handled better * There is a problem writing to the cat asic in the * PSI. The 30us delay seems to work, though */ udelay(30); } - - if((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) { + + if ((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) { printk("cat_subwrite: cat_subaddrsetup FAILED\n"); return retval; } - - if(cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_WRITE_CONFIG)) { + + if (cat_sendinst + (modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_WRITE_CONFIG)) { printk("cat_subwrite: cat_sendinst FAILED\n"); return 1; } - for(i = 0; i < len; i++) { - if(cat_senddata(modp, asicp, 0xFF, ((__u8 *)buf)[i])) { - printk("cat_subwrite: cat_sendata element at %d FAILED\n", i); + for (i = 0; i < len; i++) { + if (cat_senddata(modp, asicp, 0xFF, ((__u8 *) buf)[i])) { + printk + ("cat_subwrite: cat_sendata element at %d FAILED\n", + i); return 1; } } return 0; } static int -cat_subread(voyager_module_t *modp, voyager_asic_t *asicp, __u16 offset, +cat_subread(voyager_module_t * modp, voyager_asic_t * asicp, __u16 offset, __u16 len, void *buf) { int i, retval; - if((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) { + if ((retval = cat_subaddrsetup(modp, asicp, offset, len)) != 0) { CDEBUG(("cat_subread: cat_subaddrsetup FAILED\n")); return retval; } - if(cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_READ_CONFIG)) { + if (cat_sendinst(modp, asicp, VOYAGER_SUBADDRDATA, VOYAGER_READ_CONFIG)) { CDEBUG(("cat_subread: cat_sendinst failed\n")); return 1; } - for(i = 0; i < len; i++) { - if(cat_getdata(modp, asicp, 0xFF, - &((__u8 *)buf)[i])) { - CDEBUG(("cat_subread: cat_getdata element %d failed\n", i)); + for (i = 0; i < len; i++) { + if (cat_getdata(modp, asicp, 0xFF, &((__u8 *) buf)[i])) { + CDEBUG(("cat_subread: cat_getdata element %d failed\n", + i)); return 1; } } return 0; } - /* buffer for storing EPROM data read in during initialisation */ static __initdata __u8 eprom_buf[0xFFFF]; static voyager_module_t *voyager_initial_module; @@ -568,8 +573,7 @@ static voyager_module_t *voyager_initial_module; * boot cpu *after* all memory initialisation has been done (so we can * use kmalloc) but before smp initialisation, so we can probe the SMP * configuration and pick up necessary information. */ -void __init -voyager_cat_init(void) +void __init voyager_cat_init(void) { voyager_module_t **modpp = &voyager_initial_module; voyager_asic_t **asicpp; @@ -578,27 +582,29 @@ voyager_cat_init(void) unsigned long qic_addr = 0; __u8 qabc_data[0x20]; __u8 num_submodules, val; - voyager_eprom_hdr_t *eprom_hdr = (voyager_eprom_hdr_t *)&eprom_buf[0]; - + voyager_eprom_hdr_t *eprom_hdr = (voyager_eprom_hdr_t *) & eprom_buf[0]; + __u8 cmos[4]; unsigned long addr; - + /* initiallise the SUS mailbox */ - for(i=0; i<sizeof(cmos); i++) + for (i = 0; i < sizeof(cmos); i++) cmos[i] = voyager_extended_cmos_read(VOYAGER_DUMP_LOCATION + i); addr = *(unsigned long *)cmos; - if((addr & 0xff000000) != 0xff000000) { - printk(KERN_ERR "Voyager failed to get SUS mailbox (addr = 0x%lx\n", addr); + if ((addr & 0xff000000) != 0xff000000) { + printk(KERN_ERR + "Voyager failed to get SUS mailbox (addr = 0x%lx\n", + addr); } else { static struct resource res; - + res.name = "voyager SUS"; res.start = addr; - res.end = addr+0x3ff; - + res.end = addr + 0x3ff; + request_resource(&iomem_resource, &res); voyager_SUS = (struct voyager_SUS *) - ioremap(addr, 0x400); + ioremap(addr, 0x400); printk(KERN_NOTICE "Voyager SUS mailbox version 0x%x\n", voyager_SUS->SUS_version); voyager_SUS->kernel_version = VOYAGER_MAILBOX_VERSION; @@ -609,8 +615,6 @@ voyager_cat_init(void) voyager_extended_vic_processors = 0; voyager_quad_processors = 0; - - printk("VOYAGER: beginning CAT bus probe\n"); /* set up the SuperSet Port Block which tells us where the * CAT communication port is */ @@ -618,14 +622,14 @@ voyager_cat_init(void) VDEBUG(("VOYAGER DEBUG: sspb = 0x%x\n", sspb)); /* now find out if were 8 slot or normal */ - if((inb(VIC_PROC_WHO_AM_I) & EIGHT_SLOT_IDENTIFIER) - == EIGHT_SLOT_IDENTIFIER) { + if ((inb(VIC_PROC_WHO_AM_I) & EIGHT_SLOT_IDENTIFIER) + == EIGHT_SLOT_IDENTIFIER) { voyager_8slot = 1; - printk(KERN_NOTICE "Voyager: Eight slot 51xx configuration detected\n"); + printk(KERN_NOTICE + "Voyager: Eight slot 51xx configuration detected\n"); } - for(i = VOYAGER_MIN_MODULE; - i <= VOYAGER_MAX_MODULE; i++) { + for (i = VOYAGER_MIN_MODULE; i <= VOYAGER_MAX_MODULE; i++) { __u8 input; int asic; __u16 eprom_size; @@ -643,21 +647,21 @@ voyager_cat_init(void) outb(0xAA, CAT_DATA); input = inb(CAT_DATA); outb(VOYAGER_CAT_END, CAT_CMD); - if(input != VOYAGER_CAT_HEADER) { + if (input != VOYAGER_CAT_HEADER) { continue; } CDEBUG(("VOYAGER DEBUG: found module id 0x%x, %s\n", i, cat_module_name(i))); - *modpp = kmalloc(sizeof(voyager_module_t), GFP_KERNEL); /*&voyager_module_storage[cat_count++];*/ - if(*modpp == NULL) { + *modpp = kmalloc(sizeof(voyager_module_t), GFP_KERNEL); /*&voyager_module_storage[cat_count++]; */ + if (*modpp == NULL) { printk("**WARNING** kmalloc failure in cat_init\n"); continue; } memset(*modpp, 0, sizeof(voyager_module_t)); /* need temporary asic for cat_subread. It will be * filled in correctly later */ - (*modpp)->asic = kmalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count];*/ - if((*modpp)->asic == NULL) { + (*modpp)->asic = kmalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count]; */ + if ((*modpp)->asic == NULL) { printk("**WARNING** kmalloc failure in cat_init\n"); continue; } @@ -666,47 +670,52 @@ voyager_cat_init(void) (*modpp)->asic->subaddr = VOYAGER_SUBADDR_HI; (*modpp)->module_addr = i; (*modpp)->scan_path_connected = 0; - if(i == VOYAGER_PSI) { + if (i == VOYAGER_PSI) { /* Exception leg for modules with no EEPROM */ printk("Module \"%s\"\n", cat_module_name(i)); continue; } - + CDEBUG(("cat_init: Reading eeprom for module 0x%x at offset %d\n", i, VOYAGER_XSUM_END_OFFSET)); outb(VOYAGER_CAT_RUN, CAT_CMD); cat_disconnect(*modpp, (*modpp)->asic); - if(cat_subread(*modpp, (*modpp)->asic, - VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size), - &eprom_size)) { - printk("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", i); + if (cat_subread(*modpp, (*modpp)->asic, + VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size), + &eprom_size)) { + printk + ("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", + i); outb(VOYAGER_CAT_END, CAT_CMD); continue; } - if(eprom_size > sizeof(eprom_buf)) { - printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x. Need %d\n", i, eprom_size); + if (eprom_size > sizeof(eprom_buf)) { + printk + ("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x. Need %d\n", + i, eprom_size); outb(VOYAGER_CAT_END, CAT_CMD); continue; } outb(VOYAGER_CAT_END, CAT_CMD); outb(VOYAGER_CAT_RUN, CAT_CMD); - CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, eprom_size)); - if(cat_subread(*modpp, (*modpp)->asic, 0, - eprom_size, eprom_buf)) { + CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, + eprom_size)); + if (cat_subread + (*modpp, (*modpp)->asic, 0, eprom_size, eprom_buf)) { outb(VOYAGER_CAT_END, CAT_CMD); continue; } outb(VOYAGER_CAT_END, CAT_CMD); printk("Module \"%s\", version 0x%x, tracer 0x%x, asics %d\n", cat_module_name(i), eprom_hdr->version_id, - *((__u32 *)eprom_hdr->tracer), eprom_hdr->num_asics); + *((__u32 *) eprom_hdr->tracer), eprom_hdr->num_asics); (*modpp)->ee_size = eprom_hdr->ee_size; (*modpp)->num_asics = eprom_hdr->num_asics; asicpp = &((*modpp)->asic); sp_offset = eprom_hdr->scan_path_offset; /* All we really care about are the Quad cards. We - * identify them because they are in a processor slot - * and have only four asics */ - if((i < 0x10 || (i>=0x14 && i < 0x1c) || i>0x1f)) { + * identify them because they are in a processor slot + * and have only four asics */ + if ((i < 0x10 || (i >= 0x14 && i < 0x1c) || i > 0x1f)) { modpp = &((*modpp)->next); continue; } @@ -717,16 +726,17 @@ voyager_cat_init(void) &num_submodules); /* lowest two bits, active low */ num_submodules = ~(0xfc | num_submodules); - CDEBUG(("VOYAGER CAT: %d submodules present\n", num_submodules)); - if(num_submodules == 0) { + CDEBUG(("VOYAGER CAT: %d submodules present\n", + num_submodules)); + if (num_submodules == 0) { /* fill in the dyadic extended processors */ __u8 cpu = i & 0x07; printk("Module \"%s\": Dyadic Processor Card\n", cat_module_name(i)); - voyager_extended_vic_processors |= (1<<cpu); + voyager_extended_vic_processors |= (1 << cpu); cpu += 4; - voyager_extended_vic_processors |= (1<<cpu); + voyager_extended_vic_processors |= (1 << cpu); outb(VOYAGER_CAT_END, CAT_CMD); continue; } @@ -740,28 +750,32 @@ voyager_cat_init(void) cat_write(*modpp, (*modpp)->asic, VOYAGER_SUBMODSELECT, val); outb(VOYAGER_CAT_END, CAT_CMD); - CDEBUG(("cat_init: Reading eeprom for module 0x%x at offset %d\n", i, VOYAGER_XSUM_END_OFFSET)); outb(VOYAGER_CAT_RUN, CAT_CMD); cat_disconnect(*modpp, (*modpp)->asic); - if(cat_subread(*modpp, (*modpp)->asic, - VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size), - &eprom_size)) { - printk("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", i); + if (cat_subread(*modpp, (*modpp)->asic, + VOYAGER_XSUM_END_OFFSET, sizeof(eprom_size), + &eprom_size)) { + printk + ("**WARNING**: Voyager couldn't read EPROM size for module 0x%x\n", + i); outb(VOYAGER_CAT_END, CAT_CMD); continue; } - if(eprom_size > sizeof(eprom_buf)) { - printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x. Need %d\n", i, eprom_size); + if (eprom_size > sizeof(eprom_buf)) { + printk + ("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x. Need %d\n", + i, eprom_size); outb(VOYAGER_CAT_END, CAT_CMD); continue; } outb(VOYAGER_CAT_END, CAT_CMD); outb(VOYAGER_CAT_RUN, CAT_CMD); - CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, eprom_size)); - if(cat_subread(*modpp, (*modpp)->asic, 0, - eprom_size, eprom_buf)) { + CDEBUG(("cat_init: module 0x%x, eeprom_size %d\n", i, + eprom_size)); + if (cat_subread + (*modpp, (*modpp)->asic, 0, eprom_size, eprom_buf)) { outb(VOYAGER_CAT_END, CAT_CMD); continue; } @@ -773,30 +787,35 @@ voyager_cat_init(void) sp_offset = eprom_hdr->scan_path_offset; /* get rid of the dummy CAT asic and read the real one */ kfree((*modpp)->asic); - for(asic=0; asic < (*modpp)->num_asics; asic++) { + for (asic = 0; asic < (*modpp)->num_asics; asic++) { int j; - voyager_asic_t *asicp = *asicpp - = kzalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count++];*/ + voyager_asic_t *asicp = *asicpp = kzalloc(sizeof(voyager_asic_t), GFP_KERNEL); /*&voyager_asic_storage[asic_count++]; */ voyager_sp_table_t *sp_table; voyager_at_t *asic_table; voyager_jtt_t *jtag_table; - if(asicp == NULL) { - printk("**WARNING** kmalloc failure in cat_init\n"); + if (asicp == NULL) { + printk + ("**WARNING** kmalloc failure in cat_init\n"); continue; } asicpp = &(asicp->next); asicp->asic_location = asic; - sp_table = (voyager_sp_table_t *)(eprom_buf + sp_offset); + sp_table = + (voyager_sp_table_t *) (eprom_buf + sp_offset); asicp->asic_id = sp_table->asic_id; - asic_table = (voyager_at_t *)(eprom_buf + sp_table->asic_data_offset); - for(j=0; j<4; j++) + asic_table = + (voyager_at_t *) (eprom_buf + + sp_table->asic_data_offset); + for (j = 0; j < 4; j++) asicp->jtag_id[j] = asic_table->jtag_id[j]; - jtag_table = (voyager_jtt_t *)(eprom_buf + asic_table->jtag_offset); + jtag_table = + (voyager_jtt_t *) (eprom_buf + + asic_table->jtag_offset); asicp->ireg_length = jtag_table->ireg_len; asicp->bit_location = (*modpp)->inst_bits; (*modpp)->inst_bits += asicp->ireg_length; - if(asicp->ireg_length > (*modpp)->largest_reg) + if (asicp->ireg_length > (*modpp)->largest_reg) (*modpp)->largest_reg = asicp->ireg_length; if (asicp->ireg_length < (*modpp)->smallest_reg || (*modpp)->smallest_reg == 0) @@ -804,15 +823,13 @@ voyager_cat_init(void) CDEBUG(("asic 0x%x, ireg_length=%d, bit_location=%d\n", asicp->asic_id, asicp->ireg_length, asicp->bit_location)); - if(asicp->asic_id == VOYAGER_QUAD_QABC) { + if (asicp->asic_id == VOYAGER_QUAD_QABC) { CDEBUG(("VOYAGER CAT: QABC ASIC found\n")); qabc_asic = asicp; } sp_offset += sizeof(voyager_sp_table_t); } - CDEBUG(("Module inst_bits = %d, largest_reg = %d, smallest_reg=%d\n", - (*modpp)->inst_bits, (*modpp)->largest_reg, - (*modpp)->smallest_reg)); + CDEBUG(("Module inst_bits = %d, largest_reg = %d, smallest_reg=%d\n", (*modpp)->inst_bits, (*modpp)->largest_reg, (*modpp)->smallest_reg)); /* OK, now we have the QUAD ASICs set up, use them. * we need to: * @@ -828,10 +845,11 @@ voyager_cat_init(void) qic_addr = qabc_data[5] << 8; qic_addr = (qic_addr | qabc_data[6]) << 8; qic_addr = (qic_addr | qabc_data[7]) << 8; - printk("Module \"%s\": Quad Processor Card; CPI 0x%lx, SET=0x%x\n", - cat_module_name(i), qic_addr, qabc_data[8]); + printk + ("Module \"%s\": Quad Processor Card; CPI 0x%lx, SET=0x%x\n", + cat_module_name(i), qic_addr, qabc_data[8]); #if 0 /* plumbing fails---FIXME */ - if((qabc_data[8] & 0xf0) == 0) { + if ((qabc_data[8] & 0xf0) == 0) { /* FIXME: 32 way 8 CPU slot monster cannot be * plumbed this way---need to check for it */ @@ -842,94 +860,97 @@ voyager_cat_init(void) #ifdef VOYAGER_CAT_DEBUG /* verify plumbing */ cat_subread(*modpp, qabc_asic, 8, 1, &qabc_data[8]); - if((qabc_data[8] & 0xf0) == 0) { - CDEBUG(("PLUMBING FAILED: 0x%x\n", qabc_data[8])); + if ((qabc_data[8] & 0xf0) == 0) { + CDEBUG(("PLUMBING FAILED: 0x%x\n", + qabc_data[8])); } #endif } #endif { - struct resource *res = kzalloc(sizeof(struct resource),GFP_KERNEL); + struct resource *res = + kzalloc(sizeof(struct resource), GFP_KERNEL); res->name = kmalloc(128, GFP_KERNEL); - sprintf((char *)res->name, "Voyager %s Quad CPI", cat_module_name(i)); + sprintf((char *)res->name, "Voyager %s Quad CPI", + cat_module_name(i)); res->start = qic_addr; res->end = qic_addr + 0x3ff; request_resource(&iomem_resource, res); } qic_addr = (unsigned long)ioremap(qic_addr, 0x400); - - for(j = 0; j < 4; j++) { + + for (j = 0; j < 4; j++) { __u8 cpu; - if(voyager_8slot) { + if (voyager_8slot) { /* 8 slot has a different mapping, * each slot has only one vic line, so * 1 cpu in each slot must be < 8 */ - cpu = (i & 0x07) + j*8; + cpu = (i & 0x07) + j * 8; } else { - cpu = (i & 0x03) + j*4; + cpu = (i & 0x03) + j * 4; } - if( (qabc_data[8] & (1<<j))) { - voyager_extended_vic_processors |= (1<<cpu); + if ((qabc_data[8] & (1 << j))) { + voyager_extended_vic_processors |= (1 << cpu); } - if(qabc_data[8] & (1<<(j+4)) ) { + if (qabc_data[8] & (1 << (j + 4))) { /* Second SET register plumbed: Quad * card has two VIC connected CPUs. * Secondary cannot be booted as a VIC * CPU */ - voyager_extended_vic_processors |= (1<<cpu); - voyager_allowed_boot_processors &= (~(1<<cpu)); + voyager_extended_vic_processors |= (1 << cpu); + voyager_allowed_boot_processors &= + (~(1 << cpu)); } - voyager_quad_processors |= (1<<cpu); + voyager_quad_processors |= (1 << cpu); voyager_quad_cpi_addr[cpu] = (struct voyager_qic_cpi *) - (qic_addr+(j<<8)); + (qic_addr + (j << 8)); CDEBUG(("CPU%d: CPI address 0x%lx\n", cpu, (unsigned long)voyager_quad_cpi_addr[cpu])); } outb(VOYAGER_CAT_END, CAT_CMD); - - *asicpp = NULL; modpp = &((*modpp)->next); } *modpp = NULL; - printk("CAT Bus Initialisation finished: extended procs 0x%x, quad procs 0x%x, allowed vic boot = 0x%x\n", voyager_extended_vic_processors, voyager_quad_processors, voyager_allowed_boot_processors); + printk + ("CAT Bus Initialisation finished: extended procs 0x%x, quad procs 0x%x, allowed vic boot = 0x%x\n", + voyager_extended_vic_processors, voyager_quad_processors, + voyager_allowed_boot_processors); request_resource(&ioport_resource, &vic_res); - if(voyager_quad_processors) + if (voyager_quad_processors) request_resource(&ioport_resource, &qic_res); /* set up the front power switch */ } -int -voyager_cat_readb(__u8 module, __u8 asic, int reg) +int voyager_cat_readb(__u8 module, __u8 asic, int reg) { return 0; } -static int -cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp) +static int cat_disconnect(voyager_module_t * modp, voyager_asic_t * asicp) { __u8 val; int err = 0; - if(!modp->scan_path_connected) + if (!modp->scan_path_connected) return 0; - if(asicp->asic_id != VOYAGER_CAT_ID) { + if (asicp->asic_id != VOYAGER_CAT_ID) { CDEBUG(("cat_disconnect: ASIC is not CAT\n")); return 1; } err = cat_read(modp, asicp, VOYAGER_SCANPATH, &val); - if(err) { + if (err) { CDEBUG(("cat_disconnect: failed to read SCANPATH\n")); return err; } val &= VOYAGER_DISCONNECT_ASIC; err = cat_write(modp, asicp, VOYAGER_SCANPATH, val); - if(err) { + if (err) { CDEBUG(("cat_disconnect: failed to write SCANPATH\n")); return err; } @@ -940,27 +961,26 @@ cat_disconnect(voyager_module_t *modp, voyager_asic_t *asicp) return 0; } -static int -cat_connect(voyager_module_t *modp, voyager_asic_t *asicp) +static int cat_connect(voyager_module_t * modp, voyager_asic_t * asicp) { __u8 val; int err = 0; - if(modp->scan_path_connected) + if (modp->scan_path_connected) return 0; - if(asicp->asic_id != VOYAGER_CAT_ID) { + if (asicp->asic_id != VOYAGER_CAT_ID) { CDEBUG(("cat_connect: ASIC is not CAT\n")); return 1; } err = cat_read(modp, asicp, VOYAGER_SCANPATH, &val); - if(err) { + if (err) { CDEBUG(("cat_connect: failed to read SCANPATH\n")); return err; } val |= VOYAGER_CONNECT_ASIC; err = cat_write(modp, asicp, VOYAGER_SCANPATH, val); - if(err) { + if (err) { CDEBUG(("cat_connect: failed to write SCANPATH\n")); return err; } @@ -971,11 +991,10 @@ cat_connect(voyager_module_t *modp, voyager_asic_t *asicp) return 0; } -void -voyager_cat_power_off(void) +void voyager_cat_power_off(void) { /* Power the machine off by writing to the PSI over the CAT - * bus */ + * bus */ __u8 data; voyager_module_t psi = { 0 }; voyager_asic_t psi_asic = { 0 }; @@ -1009,8 +1028,7 @@ voyager_cat_power_off(void) struct voyager_status voyager_status = { 0 }; -void -voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data) +void voyager_cat_psi(__u8 cmd, __u16 reg, __u8 * data) { voyager_module_t psi = { 0 }; voyager_asic_t psi_asic = { 0 }; @@ -1027,7 +1045,7 @@ voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data) outb(VOYAGER_PSI, VOYAGER_CAT_CONFIG_PORT); outb(VOYAGER_CAT_RUN, CAT_CMD); cat_disconnect(&psi, &psi_asic); - switch(cmd) { + switch (cmd) { case VOYAGER_PSI_READ: cat_read(&psi, &psi_asic, reg, data); break; @@ -1047,8 +1065,7 @@ voyager_cat_psi(__u8 cmd, __u16 reg, __u8 *data) outb(VOYAGER_CAT_END, CAT_CMD); } -void -voyager_cat_do_common_interrupt(void) +void voyager_cat_do_common_interrupt(void) { /* This is caused either by a memory parity error or something * in the PSI */ @@ -1057,7 +1074,7 @@ voyager_cat_do_common_interrupt(void) voyager_asic_t psi_asic = { 0 }; struct voyager_psi psi_reg; int i; - re_read: + re_read: psi.asic = &psi_asic; psi.asic->asic_id = VOYAGER_CAT_ID; psi.asic->subaddr = VOYAGER_SUBADDR_HI; @@ -1072,43 +1089,45 @@ voyager_cat_do_common_interrupt(void) cat_disconnect(&psi, &psi_asic); /* Read the status. NOTE: Need to read *all* the PSI regs here * otherwise the cmn int will be reasserted */ - for(i = 0; i < sizeof(psi_reg.regs); i++) { - cat_read(&psi, &psi_asic, i, &((__u8 *)&psi_reg.regs)[i]); + for (i = 0; i < sizeof(psi_reg.regs); i++) { + cat_read(&psi, &psi_asic, i, &((__u8 *) & psi_reg.regs)[i]); } outb(VOYAGER_CAT_END, CAT_CMD); - if((psi_reg.regs.checkbit & 0x02) == 0) { + if ((psi_reg.regs.checkbit & 0x02) == 0) { psi_reg.regs.checkbit |= 0x02; cat_write(&psi, &psi_asic, 5, psi_reg.regs.checkbit); printk("VOYAGER RE-READ PSI\n"); goto re_read; } outb(VOYAGER_CAT_RUN, CAT_CMD); - for(i = 0; i < sizeof(psi_reg.subregs); i++) { + for (i = 0; i < sizeof(psi_reg.subregs); i++) { /* This looks strange, but the PSI doesn't do auto increment * correctly */ - cat_subread(&psi, &psi_asic, VOYAGER_PSI_SUPPLY_REG + i, - 1, &((__u8 *)&psi_reg.subregs)[i]); + cat_subread(&psi, &psi_asic, VOYAGER_PSI_SUPPLY_REG + i, + 1, &((__u8 *) & psi_reg.subregs)[i]); } outb(VOYAGER_CAT_END, CAT_CMD); #ifdef VOYAGER_CAT_DEBUG printk("VOYAGER PSI: "); - for(i=0; i<sizeof(psi_reg.regs); i++) - printk("%02x ", ((__u8 *)&psi_reg.regs)[i]); + for (i = 0; i < sizeof(psi_reg.regs); i++) + printk("%02x ", ((__u8 *) & psi_reg.regs)[i]); printk("\n "); - for(i=0; i<sizeof(psi_reg.subregs); i++) - printk("%02x ", ((__u8 *)&psi_reg.subregs)[i]); + for (i = 0; i < sizeof(psi_reg.subregs); i++) + printk("%02x ", ((__u8 *) & psi_reg.subregs)[i]); printk("\n"); #endif - if(psi_reg.regs.intstatus & PSI_MON) { + if (psi_reg.regs.intstatus & PSI_MON) { /* switch off or power fail */ - if(psi_reg.subregs.supply & PSI_SWITCH_OFF) { - if(voyager_status.switch_off) { - printk(KERN_ERR "Voyager front panel switch turned off again---Immediate power off!\n"); + if (psi_reg.subregs.supply & PSI_SWITCH_OFF) { + if (voyager_status.switch_off) { + printk(KERN_ERR + "Voyager front panel switch turned off again---Immediate power off!\n"); voyager_cat_power_off(); /* not reached */ } else { - printk(KERN_ERR "Voyager front panel switch turned off\n"); + printk(KERN_ERR + "Voyager front panel switch turned off\n"); voyager_status.switch_off = 1; voyager_status.request_from_kernel = 1; wake_up_process(voyager_thread); @@ -1127,7 +1146,7 @@ voyager_cat_do_common_interrupt(void) VDEBUG(("Voyager ac fail reg 0x%x\n", psi_reg.subregs.ACfail)); - if((psi_reg.subregs.ACfail & AC_FAIL_STAT_CHANGE) == 0) { + if ((psi_reg.subregs.ACfail & AC_FAIL_STAT_CHANGE) == 0) { /* No further update */ return; } @@ -1135,20 +1154,20 @@ voyager_cat_do_common_interrupt(void) /* Don't bother trying to find out who failed. * FIXME: This probably makes the code incorrect on * anything other than a 345x */ - for(i=0; i< 5; i++) { - if( psi_reg.subregs.ACfail &(1<<i)) { + for (i = 0; i < 5; i++) { + if (psi_reg.subregs.ACfail & (1 << i)) { break; } } printk(KERN_NOTICE "AC FAIL IN SUPPLY %d\n", i); #endif /* DON'T do this: it shuts down the AC PSI - outb(VOYAGER_CAT_RUN, CAT_CMD); - data = PSI_MASK_MASK | i; - cat_subwrite(&psi, &psi_asic, VOYAGER_PSI_MASK, - 1, &data); - outb(VOYAGER_CAT_END, CAT_CMD); - */ + outb(VOYAGER_CAT_RUN, CAT_CMD); + data = PSI_MASK_MASK | i; + cat_subwrite(&psi, &psi_asic, VOYAGER_PSI_MASK, + 1, &data); + outb(VOYAGER_CAT_END, CAT_CMD); + */ printk(KERN_ERR "Voyager AC power failure\n"); outb(VOYAGER_CAT_RUN, CAT_CMD); data = PSI_COLD_START; @@ -1159,16 +1178,16 @@ voyager_cat_do_common_interrupt(void) voyager_status.request_from_kernel = 1; wake_up_process(voyager_thread); } - - - } else if(psi_reg.regs.intstatus & PSI_FAULT) { + + } else if (psi_reg.regs.intstatus & PSI_FAULT) { /* Major fault! */ - printk(KERN_ERR "Voyager PSI Detected major fault, immediate power off!\n"); + printk(KERN_ERR + "Voyager PSI Detected major fault, immediate power off!\n"); voyager_cat_power_off(); /* not reached */ - } else if(psi_reg.regs.intstatus & (PSI_DC_FAIL | PSI_ALARM - | PSI_CURRENT | PSI_DVM - | PSI_PSCFAULT | PSI_STAT_CHG)) { + } else if (psi_reg.regs.intstatus & (PSI_DC_FAIL | PSI_ALARM + | PSI_CURRENT | PSI_DVM + | PSI_PSCFAULT | PSI_STAT_CHG)) { /* other psi fault */ printk(KERN_WARNING "Voyager PSI status 0x%x\n", data); diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c index 88124dd..dffa786 100644 --- a/arch/x86/mach-voyager/voyager_smp.c +++ b/arch/x86/mach-voyager/voyager_smp.c @@ -32,7 +32,8 @@ DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = { &init_mm, 0 }; /* CPU IRQ affinity -- set to all ones initially */ -static unsigned long cpu_irq_affinity[NR_CPUS] __cacheline_aligned = { [0 ... NR_CPUS-1] = ~0UL }; +static unsigned long cpu_irq_affinity[NR_CPUS] __cacheline_aligned = + {[0 ... NR_CPUS-1] = ~0UL }; /* per CPU data structure (for /proc/cpuinfo et al), visible externally * indexed physically */ @@ -76,7 +77,6 @@ EXPORT_SYMBOL(cpu_online_map); * by scheduler but indexed physically */ cpumask_t phys_cpu_present_map = CPU_MASK_NONE; - /* The internal functions */ static void send_CPI(__u32 cpuset, __u8 cpi); static void ack_CPI(__u8 cpi); @@ -101,94 +101,86 @@ int hard_smp_processor_id(void); int safe_smp_processor_id(void); /* Inline functions */ -static inline void -send_one_QIC_CPI(__u8 cpu, __u8 cpi) +static inline void send_one_QIC_CPI(__u8 cpu, __u8 cpi) { voyager_quad_cpi_addr[cpu]->qic_cpi[cpi].cpi = - (smp_processor_id() << 16) + cpi; + (smp_processor_id() << 16) + cpi; } -static inline void -send_QIC_CPI(__u32 cpuset, __u8 cpi) +static inline void send_QIC_CPI(__u32 cpuset, __u8 cpi) { int cpu; for_each_online_cpu(cpu) { - if(cpuset & (1<<cpu)) { + if (cpuset & (1 << cpu)) { #ifdef VOYAGER_DEBUG - if(!cpu_isset(cpu, cpu_online_map)) - VDEBUG(("CPU%d sending cpi %d to CPU%d not in cpu_online_map\n", hard_smp_processor_id(), cpi, cpu)); + if (!cpu_isset(cpu, cpu_online_map)) + VDEBUG(("CPU%d sending cpi %d to CPU%d not in " + "cpu_online_map\n", + hard_smp_processor_id(), cpi, cpu)); #endif send_one_QIC_CPI(cpu, cpi - QIC_CPI_OFFSET); } } } -static inline void -wrapper_smp_local_timer_interrupt(void) +static inline void wrapper_smp_local_timer_interrupt(void) { irq_enter(); smp_local_timer_interrupt(); irq_exit(); } -static inline void -send_one_CPI(__u8 cpu, __u8 cpi) +static inline void send_one_CPI(__u8 cpu, __u8 cpi) { - if(voyager_quad_processors & (1<<cpu)) + if (voyager_quad_processors & (1 << cpu)) send_one_QIC_CPI(cpu, cpi - QIC_CPI_OFFSET); else - send_CPI(1<<cpu, cpi); + send_CPI(1 << cpu, cpi); } -static inline void -send_CPI_allbutself(__u8 cpi) +static inline void send_CPI_allbutself(__u8 cpi) { __u8 cpu = smp_processor_id(); __u32 mask = cpus_addr(cpu_online_map)[0] & ~(1 << cpu); send_CPI(mask, cpi); } -static inline int -is_cpu_quad(void) +static inline int is_cpu_quad(void) { __u8 cpumask = inb(VIC_PROC_WHO_AM_I); return ((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER); } -static inline int -is_cpu_extended(void) +static inline int is_cpu_extended(void) { __u8 cpu = hard_smp_processor_id(); - return(voyager_extended_vic_processors & (1<<cpu)); + return (voyager_extended_vic_processors & (1 << cpu)); } -static inline int -is_cpu_vic_boot(void) +static inline int is_cpu_vic_boot(void) { __u8 cpu = hard_smp_processor_id(); - return(voyager_extended_vic_processors - & voyager_allowed_boot_processors & (1<<cpu)); + return (voyager_extended_vic_processors + & voyager_allowed_boot_processors & (1 << cpu)); } - -static inline void -ack_CPI(__u8 cpi) +static inline void ack_CPI(__u8 cpi) { - switch(cpi) { + switch (cpi) { case VIC_CPU_BOOT_CPI: - if(is_cpu_quad() && !is_cpu_vic_boot()) + if (is_cpu_quad() && !is_cpu_vic_boot()) ack_QIC_CPI(cpi); else ack_VIC_CPI(cpi); break; case VIC_SYS_INT: - case VIC_CMN_INT: + case VIC_CMN_INT: /* These are slightly strange. Even on the Quad card, * They are vectored as VIC CPIs */ - if(is_cpu_quad()) + if (is_cpu_quad()) ack_special_QIC_CPI(cpi); else ack_VIC_CPI(cpi); @@ -205,11 +197,11 @@ ack_CPI(__u8 cpi) * 8259 IRQs except that masks and things must be kept per processor */ static struct irq_chip vic_chip = { - .name = "VIC", - .startup = startup_vic_irq, - .mask = mask_vic_irq, - .unmask = unmask_vic_irq, - .set_affinity = set_vic_irq_affinity, + .name = "VIC", + .startup = startup_vic_irq, + .mask = mask_vic_irq, + .unmask = unmask_vic_irq, + .set_affinity = set_vic_irq_affinity, }; /* used to count up as CPUs are brought on line (starts at 0) */ @@ -223,7 +215,7 @@ static __u32 trampoline_base; /* The per cpu profile stuff - used in smp_local_timer_interrupt */ static DEFINE_PER_CPU(int, prof_multiplier) = 1; static DEFINE_PER_CPU(int, prof_old_multiplier) = 1; -static DEFINE_PER_CPU(int, prof_counter) = 1; +static DEFINE_PER_CPU(int, prof_counter) = 1; /* the map used to check if a CPU has booted */ static __u32 cpu_booted_map; @@ -235,7 +227,6 @@ static cpumask_t smp_commenced_mask = CPU_MASK_NONE; /* This is for the new dynamic CPU boot code */ cpumask_t cpu_callin_map = CPU_MASK_NONE; cpumask_t cpu_callout_map = CPU_MASK_NONE; -EXPORT_SYMBOL(cpu_callout_map); cpumask_t cpu_possible_map = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_possible_map); @@ -246,9 +237,9 @@ static __u16 vic_irq_mask[NR_CPUS] __cacheline_aligned; static __u16 vic_irq_enable_mask[NR_CPUS] __cacheline_aligned = { 0 }; /* Lock for enable/disable of VIC interrupts */ -static __cacheline_aligned DEFINE_SPINLOCK(vic_irq_lock); +static __cacheline_aligned DEFINE_SPINLOCK(vic_irq_lock); -/* The boot processor is correctly set up in PC mode when it +/* The boot processor is correctly set up in PC mode when it * comes up, but the secondaries need their master/slave 8259 * pairs initializing correctly */ @@ -262,8 +253,7 @@ static unsigned long vic_tick[NR_CPUS] __cacheline_aligned = { 0 }; static unsigned long vic_cpi_mailbox[NR_CPUS] __cacheline_aligned; /* debugging routine to read the isr of the cpu's pic */ -static inline __u16 -vic_read_isr(void) +static inline __u16 vic_read_isr(void) { __u16 isr; @@ -275,17 +265,16 @@ vic_read_isr(void) return isr; } -static __init void -qic_setup(void) +static __init void qic_setup(void) { - if(!is_cpu_quad()) { + if (!is_cpu_quad()) { /* not a quad, no setup */ return; } outb(QIC_DEFAULT_MASK0, QIC_MASK_REGISTER0); outb(QIC_CPI_ENABLE, QIC_MASK_REGISTER1); - - if(is_cpu_extended()) { + + if (is_cpu_extended()) { /* the QIC duplicate of the VIC base register */ outb(VIC_DEFAULT_CPI_BASE, QIC_VIC_CPI_BASE_REGISTER); outb(QIC_DEFAULT_CPI_BASE, QIC_CPI_BASE_REGISTER); @@ -295,8 +284,7 @@ qic_setup(void) } } -static __init void -vic_setup_pic(void) +static __init void vic_setup_pic(void) { outb(1, VIC_REDIRECT_REGISTER_1); /* clear the claim registers for dynamic routing */ @@ -333,7 +321,7 @@ vic_setup_pic(void) /* ICW2: slave vector base */ outb(FIRST_EXTERNAL_VECTOR + 8, 0xA1); - + /* ICW3: slave ID */ outb(0x02, 0xA1); @@ -341,19 +329,18 @@ vic_setup_pic(void) outb(0x01, 0xA1); } -static void -do_quad_bootstrap(void) +static void do_quad_bootstrap(void) { - if(is_cpu_quad() && is_cpu_vic_boot()) { + if (is_cpu_quad() && is_cpu_vic_boot()) { int i; unsigned long flags; __u8 cpuid = hard_smp_processor_id(); local_irq_save(flags); - for(i = 0; i<4; i++) { + for (i = 0; i < 4; i++) { /* FIXME: this would be >>3 &0x7 on the 32 way */ - if(((cpuid >> 2) & 0x03) == i) + if (((cpuid >> 2) & 0x03) == i) /* don't lower our own mask! */ continue; @@ -368,12 +355,10 @@ do_quad_bootstrap(void) } } - /* Set up all the basic stuff: read the SMP config and make all the * SMP information reflect only the boot cpu. All others will be * brought on-line later. */ -void __init -find_smp_config(void) +void __init find_smp_config(void) { int i; @@ -382,24 +367,31 @@ find_smp_config(void) printk("VOYAGER SMP: Boot cpu is %d\n", boot_cpu_id); /* initialize the CPU structures (moved from smp_boot_cpus) */ - for(i=0; i<NR_CPUS; i++) { + for (i = 0; i < NR_CPUS; i++) { cpu_irq_affinity[i] = ~0; } cpu_online_map = cpumask_of_cpu(boot_cpu_id); /* The boot CPU must be extended */ - voyager_extended_vic_processors = 1<<boot_cpu_id; + voyager_extended_vic_processors = 1 << boot_cpu_id; /* initially, all of the first 8 CPUs can boot */ voyager_allowed_boot_processors = 0xff; /* set up everything for just this CPU, we can alter * this as we start the other CPUs later */ /* now get the CPU disposition from the extended CMOS */ - cpus_addr(phys_cpu_present_map)[0] = voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK); - cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8; - cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 2) << 16; - cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 3) << 24; + cpus_addr(phys_cpu_present_map)[0] = + voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK); + cpus_addr(phys_cpu_present_map)[0] |= + voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8; + cpus_addr(phys_cpu_present_map)[0] |= + voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + + 2) << 16; + cpus_addr(phys_cpu_present_map)[0] |= + voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + + 3) << 24; cpu_possible_map = phys_cpu_present_map; - printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n", cpus_addr(phys_cpu_present_map)[0]); + printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n", + cpus_addr(phys_cpu_present_map)[0]); /* Here we set up the VIC to enable SMP */ /* enable the CPIs by writing the base vector to their register */ outb(VIC_DEFAULT_CPI_BASE, VIC_CPI_BASE_REGISTER); @@ -427,8 +419,7 @@ find_smp_config(void) /* * The bootstrap kernel entry code has set these up. Save them * for a given CPU, id is physical */ -void __init -smp_store_cpu_info(int id) +void __init smp_store_cpu_info(int id) { struct cpuinfo_x86 *c = &cpu_data(id); @@ -438,21 +429,19 @@ smp_store_cpu_info(int id) } /* set up the trampoline and return the physical address of the code */ -static __u32 __init -setup_trampoline(void) +static __u32 __init setup_trampoline(void) { /* these two are global symbols in trampoline.S */ extern const __u8 trampoline_end[]; extern const __u8 trampoline_data[]; - memcpy((__u8 *)trampoline_base, trampoline_data, + memcpy((__u8 *) trampoline_base, trampoline_data, trampoline_end - trampoline_data); - return virt_to_phys((__u8 *)trampoline_base); + return virt_to_phys((__u8 *) trampoline_base); } /* Routine initially called when a non-boot CPU is brought online */ -static void __init -start_secondary(void *unused) +static void __init start_secondary(void *unused) { __u8 cpuid = hard_smp_processor_id(); /* external functions not defined in the headers */ @@ -464,17 +453,18 @@ start_secondary(void *unused) ack_CPI(VIC_CPU_BOOT_CPI); /* setup the 8259 master slave pair belonging to this CPU --- - * we won't actually receive any until the boot CPU - * relinquishes it's static routing mask */ + * we won't actually receive any until the boot CPU + * relinquishes it's static routing mask */ vic_setup_pic(); qic_setup(); - if(is_cpu_quad() && !is_cpu_vic_boot()) { + if (is_cpu_quad() && !is_cpu_vic_boot()) { /* clear the boot CPI */ __u8 dummy; - dummy = voyager_quad_cpi_addr[cpuid]->qic_cpi[VIC_CPU_BOOT_CPI].cpi; + dummy = + voyager_quad_cpi_addr[cpuid]->qic_cpi[VIC_CPU_BOOT_CPI].cpi; printk("read dummy %d\n", dummy); } @@ -516,7 +506,6 @@ start_secondary(void *unused) cpu_idle(); } - /* Routine to kick start the given CPU and wait for it to report ready * (or timeout in startup). When this routine returns, the requested * CPU is either fully running and configured or known to be dead. @@ -524,29 +513,28 @@ start_secondary(void *unused) * We call this routine sequentially 1 CPU at a time, so no need for * locking */ -static void __init -do_boot_cpu(__u8 cpu) +static void __init do_boot_cpu(__u8 cpu) { struct task_struct *idle; int timeout; unsigned long flags; - int quad_boot = (1<<cpu) & voyager_quad_processors - & ~( voyager_extended_vic_processors - & voyager_allowed_boot_processors); + int quad_boot = (1 << cpu) & voyager_quad_processors + & ~(voyager_extended_vic_processors + & voyager_allowed_boot_processors); /* This is an area in head.S which was used to set up the * initial kernel stack. We need to alter this to give the * booting CPU a new stack (taken from its idle process) */ extern struct { - __u8 *esp; + __u8 *sp; unsigned short ss; } stack_start; /* This is the format of the CPI IDT gate (in real mode) which * we're hijacking to boot the CPU */ - union IDTFormat { + union IDTFormat { struct seg { - __u16 Offset; - __u16 Segment; + __u16 Offset; + __u16 Segment; } idt; __u32 val; } hijack_source; @@ -565,37 +553,44 @@ do_boot_cpu(__u8 cpu) alternatives_smp_switch(1); idle = fork_idle(cpu); - if(IS_ERR(idle)) + if (IS_ERR(idle)) panic("failed fork for CPU%d", cpu); - idle->thread.eip = (unsigned long) start_secondary; + idle->thread.ip = (unsigned long)start_secondary; /* init_tasks (in sched.c) is indexed logically */ - stack_start.esp = (void *) idle->thread.esp; + stack_start.sp = (void *)idle->thread.sp; init_gdt(cpu); - per_cpu(current_task, cpu) = idle; + per_cpu(current_task, cpu) = idle; early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); irq_ctx_init(cpu); /* Note: Don't modify initial ss override */ - VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu, + VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu, (unsigned long)hijack_source.val, hijack_source.idt.Segment, - hijack_source.idt.Offset, stack_start.esp)); + hijack_source.idt.Offset, stack_start.sp)); /* init lowmem identity mapping */ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS, min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS)); flush_tlb_all(); - if(quad_boot) { + if (quad_boot) { printk("CPU %d: non extended Quad boot\n", cpu); - hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_CPI + QIC_DEFAULT_CPI_BASE)*4); + hijack_vector = + (__u32 *) + phys_to_virt((VIC_CPU_BOOT_CPI + QIC_DEFAULT_CPI_BASE) * 4); *hijack_vector = hijack_source.val; } else { printk("CPU%d: extended VIC boot\n", cpu); - hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_CPI + VIC_DEFAULT_CPI_BASE)*4); + hijack_vector = + (__u32 *) + phys_to_virt((VIC_CPU_BOOT_CPI + VIC_DEFAULT_CPI_BASE) * 4); *hijack_vector = hijack_source.val; /* VIC errata, may also receive interrupt at this address */ - hijack_vector = (__u32 *)phys_to_virt((VIC_CPU_BOOT_ERRATA_CPI + VIC_DEFAULT_CPI_BASE)*4); + hijack_vector = + (__u32 *) + phys_to_virt((VIC_CPU_BOOT_ERRATA_CPI + + VIC_DEFAULT_CPI_BASE) * 4); *hijack_vector = hijack_source.val; } /* All non-boot CPUs start with interrupts fully masked. Need @@ -603,73 +598,76 @@ do_boot_cpu(__u8 cpu) * this in the VIC by masquerading as the processor we're * about to boot and lowering its interrupt mask */ local_irq_save(flags); - if(quad_boot) { + if (quad_boot) { send_one_QIC_CPI(cpu, VIC_CPU_BOOT_CPI); } else { outb(VIC_CPU_MASQUERADE_ENABLE | cpu, VIC_PROCESSOR_ID); /* here we're altering registers belonging to `cpu' */ - + outb(VIC_BOOT_INTERRUPT_MASK, 0x21); /* now go back to our original identity */ outb(boot_cpu_id, VIC_PROCESSOR_ID); /* and boot the CPU */ - send_CPI((1<<cpu), VIC_CPU_BOOT_CPI); + send_CPI((1 << cpu), VIC_CPU_BOOT_CPI); } cpu_booted_map = 0; local_irq_restore(flags); /* now wait for it to become ready (or timeout) */ - for(timeout = 0; timeout < 50000; timeout++) { - if(cpu_booted_map) + for (timeout = 0; timeout < 50000; timeout++) { + if (cpu_booted_map) break; udelay(100); } /* reset the page table */ zap_low_mappings(); - + if (cpu_booted_map) { VDEBUG(("CPU%d: Booted successfully, back in CPU %d\n", cpu, smp_processor_id())); - + printk("CPU%d: ", cpu); print_cpu_info(&cpu_data(cpu)); wmb(); cpu_set(cpu, cpu_callout_map); cpu_set(cpu, cpu_present_map); - } - else { + } else { printk("CPU%d FAILED TO BOOT: ", cpu); - if (*((volatile unsigned char *)phys_to_virt(start_phys_address))==0xA5) + if (* + ((volatile unsigned char *)phys_to_virt(start_phys_address)) + == 0xA5) printk("Stuck.\n"); else printk("Not responding.\n"); - + cpucount--; } } -void __init -smp_boot_cpus(void) +void __init smp_boot_cpus(void) { int i; /* CAT BUS initialisation must be done after the memory */ /* FIXME: The L4 has a catbus too, it just needs to be * accessed in a totally different way */ - if(voyager_level == 5) { + if (voyager_level == 5) { voyager_cat_init(); /* now that the cat has probed the Voyager System Bus, sanity * check the cpu map */ - if( ((voyager_quad_processors | voyager_extended_vic_processors) - & cpus_addr(phys_cpu_present_map)[0]) != cpus_addr(phys_cpu_present_map)[0]) { + if (((voyager_quad_processors | voyager_extended_vic_processors) + & cpus_addr(phys_cpu_present_map)[0]) != + cpus_addr(phys_cpu_present_map)[0]) { /* should panic */ - printk("\n\n***WARNING*** Sanity check of CPU present map FAILED\n"); + printk("\n\n***WARNING*** " + "Sanity check of CPU present map FAILED\n"); } - } else if(voyager_level == 4) - voyager_extended_vic_processors = cpus_addr(phys_cpu_present_map)[0]; + } else if (voyager_level == 4) + voyager_extended_vic_processors = + cpus_addr(phys_cpu_present_map)[0]; /* this sets up the idle task to run on the current cpu */ voyager_extended_cpus = 1; @@ -678,14 +676,14 @@ smp_boot_cpus(void) //global_irq_holder = boot_cpu_id; /* FIXME: Need to do something about this but currently only works - * on CPUs with a tsc which none of mine have. - smp_tune_scheduling(); + * on CPUs with a tsc which none of mine have. + smp_tune_scheduling(); */ smp_store_cpu_info(boot_cpu_id); printk("CPU%d: ", boot_cpu_id); print_cpu_info(&cpu_data(boot_cpu_id)); - if(is_cpu_quad()) { + if (is_cpu_quad()) { /* booting on a Quad CPU */ printk("VOYAGER SMP: Boot CPU is Quad\n"); qic_setup(); @@ -697,11 +695,11 @@ smp_boot_cpus(void) cpu_set(boot_cpu_id, cpu_online_map); cpu_set(boot_cpu_id, cpu_callout_map); - - /* loop over all the extended VIC CPUs and boot them. The + + /* loop over all the extended VIC CPUs and boot them. The * Quad CPUs must be bootstrapped by their extended VIC cpu */ - for(i = 0; i < NR_CPUS; i++) { - if(i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map)) + for (i = 0; i < NR_CPUS; i++) { + if (i == boot_cpu_id || !cpu_isset(i, phys_cpu_present_map)) continue; do_boot_cpu(i); /* This udelay seems to be needed for the Quad boots @@ -715,25 +713,26 @@ smp_boot_cpus(void) for (i = 0; i < NR_CPUS; i++) if (cpu_isset(i, cpu_online_map)) bogosum += cpu_data(i).loops_per_jiffy; - printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n", - cpucount+1, - bogosum/(500000/HZ), - (bogosum/(5000/HZ))%100); + printk(KERN_INFO "Total of %d processors activated " + "(%lu.%02lu BogoMIPS).\n", + cpucount + 1, bogosum / (500000 / HZ), + (bogosum / (5000 / HZ)) % 100); } voyager_extended_cpus = hweight32(voyager_extended_vic_processors); - printk("VOYAGER: Extended (interrupt handling CPUs): %d, non-extended: %d\n", voyager_extended_cpus, num_booting_cpus() - voyager_extended_cpus); + printk("VOYAGER: Extended (interrupt handling CPUs): " + "%d, non-extended: %d\n", voyager_extended_cpus, + num_booting_cpus() - voyager_extended_cpus); /* that's it, switch to symmetric mode */ outb(0, VIC_PRIORITY_REGISTER); outb(0, VIC_CLAIM_REGISTER_0); outb(0, VIC_CLAIM_REGISTER_1); - + VDEBUG(("VOYAGER SMP: Booted with %d CPUs\n", num_booting_cpus())); } /* Reload the secondary CPUs task structure (this function does not * return ) */ -void __init -initialize_secondary(void) +void __init initialize_secondary(void) { #if 0 // AC kernels only @@ -745,11 +744,9 @@ initialize_secondary(void) * basically just the stack pointer and the eip. */ - asm volatile( - "movl %0,%%esp\n\t" - "jmp *%1" - : - :"r" (current->thread.esp),"r" (current->thread.eip)); + asm volatile ("movl %0,%%esp\n\t" + "jmp *%1"::"r" (current->thread.sp), + "r"(current->thread.ip)); } /* handle a Voyager SYS_INT -- If we don't, the base board will @@ -758,25 +755,23 @@ initialize_secondary(void) * System interrupts occur because some problem was detected on the * various busses. To find out what you have to probe all the * hardware via the CAT bus. FIXME: At the moment we do nothing. */ -fastcall void -smp_vic_sys_interrupt(struct pt_regs *regs) +void smp_vic_sys_interrupt(struct pt_regs *regs) { ack_CPI(VIC_SYS_INT); - printk("Voyager SYSTEM INTERRUPT\n"); + printk("Voyager SYSTEM INTERRUPT\n"); } /* Handle a voyager CMN_INT; These interrupts occur either because of * a system status change or because a single bit memory error * occurred. FIXME: At the moment, ignore all this. */ -fastcall void -smp_vic_cmn_interrupt(struct pt_regs *regs) +void smp_vic_cmn_interrupt(struct pt_regs *regs) { static __u8 in_cmn_int = 0; static DEFINE_SPINLOCK(cmn_int_lock); /* common ints are broadcast, so make sure we only do this once */ _raw_spin_lock(&cmn_int_lock); - if(in_cmn_int) + if (in_cmn_int) goto unlock_end; in_cmn_int++; @@ -784,12 +779,12 @@ smp_vic_cmn_interrupt(struct pt_regs *regs) VDEBUG(("Voyager COMMON INTERRUPT\n")); - if(voyager_level == 5) + if (voyager_level == 5) voyager_cat_do_common_interrupt(); _raw_spin_lock(&cmn_int_lock); in_cmn_int = 0; - unlock_end: + unlock_end: _raw_spin_unlock(&cmn_int_lock); ack_CPI(VIC_CMN_INT); } @@ -797,26 +792,23 @@ smp_vic_cmn_interrupt(struct pt_regs *regs) /* * Reschedule call back. Nothing to do, all the work is done * automatically when we return from the interrupt. */ -static void -smp_reschedule_interrupt(void) +static void smp_reschedule_interrupt(void) { /* do nothing */ } -static struct mm_struct * flush_mm; +static struct mm_struct *flush_mm; static unsigned long flush_va; static DEFINE_SPINLOCK(tlbstate_lock); -#define FLUSH_ALL 0xffffffff /* - * We cannot call mmdrop() because we are in interrupt context, + * We cannot call mmdrop() because we are in interrupt context, * instead update mm->cpu_vm_mask. * * We need to reload %cr3 since the page tables may be going * away from under us.. */ -static inline void -leave_mm (unsigned long cpu) +static inline void voyager_leave_mm(unsigned long cpu) { if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) BUG(); @@ -824,12 +816,10 @@ leave_mm (unsigned long cpu) load_cr3(swapper_pg_dir); } - /* * Invalidate call-back */ -static void -smp_invalidate_interrupt(void) +static void smp_invalidate_interrupt(void) { __u8 cpu = smp_processor_id(); @@ -837,18 +827,18 @@ smp_invalidate_interrupt(void) return; /* This will flood messages. Don't uncomment unless you see * Problems with cross cpu invalidation - VDEBUG(("VOYAGER SMP: CPU%d received INVALIDATE_CPI\n", - smp_processor_id())); - */ + VDEBUG(("VOYAGER SMP: CPU%d received INVALIDATE_CPI\n", + smp_processor_id())); + */ if (flush_mm == per_cpu(cpu_tlbstate, cpu).active_mm) { if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) { - if (flush_va == FLUSH_ALL) + if (flush_va == TLB_FLUSH_ALL) local_flush_tlb(); else __flush_tlb_one(flush_va); } else - leave_mm(cpu); + voyager_leave_mm(cpu); } smp_mb__before_clear_bit(); clear_bit(cpu, &smp_invalidate_needed); @@ -857,11 +847,10 @@ smp_invalidate_interrupt(void) /* All the new flush operations for 2.4 */ - /* This routine is called with a physical cpu mask */ static void -voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, - unsigned long va) +voyager_flush_tlb_others(unsigned long cpumask, struct mm_struct *mm, + unsigned long va) { int stuck = 50000; @@ -875,7 +864,7 @@ voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, BUG(); spin_lock(&tlbstate_lock); - + flush_mm = mm; flush_va = va; atomic_set_mask(cpumask, &smp_invalidate_needed); @@ -887,23 +876,23 @@ voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, while (smp_invalidate_needed) { mb(); - if(--stuck == 0) { - printk("***WARNING*** Stuck doing invalidate CPI (CPU%d)\n", smp_processor_id()); + if (--stuck == 0) { + printk("***WARNING*** Stuck doing invalidate CPI " + "(CPU%d)\n", smp_processor_id()); break; } } /* Uncomment only to debug invalidation problems - VDEBUG(("VOYAGER SMP: Completed invalidate CPI (CPU%d)\n", cpu)); - */ + VDEBUG(("VOYAGER SMP: Completed invalidate CPI (CPU%d)\n", cpu)); + */ flush_mm = NULL; flush_va = 0; spin_unlock(&tlbstate_lock); } -void -flush_tlb_current_task(void) +void flush_tlb_current_task(void) { struct mm_struct *mm = current->mm; unsigned long cpu_mask; @@ -913,14 +902,12 @@ flush_tlb_current_task(void) cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id()); local_flush_tlb(); if (cpu_mask) - voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + voyager_flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL); preempt_enable(); } - -void -flush_tlb_mm (struct mm_struct * mm) +void flush_tlb_mm(struct mm_struct *mm) { unsigned long cpu_mask; @@ -932,15 +919,15 @@ flush_tlb_mm (struct mm_struct * mm) if (current->mm) local_flush_tlb(); else - leave_mm(smp_processor_id()); + voyager_leave_mm(smp_processor_id()); } if (cpu_mask) - voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + voyager_flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL); preempt_enable(); } -void flush_tlb_page(struct vm_area_struct * vma, unsigned long va) +void flush_tlb_page(struct vm_area_struct *vma, unsigned long va) { struct mm_struct *mm = vma->vm_mm; unsigned long cpu_mask; @@ -949,10 +936,10 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va) cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id()); if (current->active_mm == mm) { - if(current->mm) + if (current->mm) __flush_tlb_one(va); - else - leave_mm(smp_processor_id()); + else + voyager_leave_mm(smp_processor_id()); } if (cpu_mask) @@ -960,21 +947,21 @@ void flush_tlb_page(struct vm_area_struct * vma, unsigned long va) preempt_enable(); } + EXPORT_SYMBOL(flush_tlb_page); /* enable the requested IRQs */ -static void -smp_enable_irq_interrupt(void) +static void smp_enable_irq_interrupt(void) { __u8 irq; __u8 cpu = get_cpu(); VDEBUG(("VOYAGER SMP: CPU%d enabling irq mask 0x%x\n", cpu, - vic_irq_enable_mask[cpu])); + vic_irq_enable_mask[cpu])); spin_lock(&vic_irq_lock); - for(irq = 0; irq < 16; irq++) { - if(vic_irq_enable_mask[cpu] & (1<<irq)) + for (irq = 0; irq < 16; irq++) { + if (vic_irq_enable_mask[cpu] & (1 << irq)) enable_local_vic_irq(irq); } vic_irq_enable_mask[cpu] = 0; @@ -982,17 +969,16 @@ smp_enable_irq_interrupt(void) put_cpu_no_resched(); } - + /* * CPU halt call-back */ -static void -smp_stop_cpu_function(void *dummy) +static void smp_stop_cpu_function(void *dummy) { VDEBUG(("VOYAGER SMP: CPU%d is STOPPING\n", smp_processor_id())); cpu_clear(smp_processor_id(), cpu_online_map); local_irq_disable(); - for(;;) + for (;;) halt(); } @@ -1006,14 +992,13 @@ struct call_data_struct { int wait; }; -static struct call_data_struct * call_data; +static struct call_data_struct *call_data; /* execute a thread on a new CPU. The function to be called must be * previously set up. This is used to schedule a function for * execution on all CPUs - set up the function then broadcast a * function_interrupt CPI to come here on each CPU */ -static void -smp_call_function_interrupt(void) +static void smp_call_function_interrupt(void) { void (*func) (void *info) = call_data->func; void *info = call_data->info; @@ -1027,16 +1012,17 @@ smp_call_function_interrupt(void) * about to execute the function */ mb(); - if(!test_and_clear_bit(cpu, &call_data->started)) { + if (!test_and_clear_bit(cpu, &call_data->started)) { /* If the bit wasn't set, this could be a replay */ - printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion with no call pending\n", cpu); + printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion" + " with no call pending\n", cpu); return; } /* * At this point the info structure may be out of scope unless wait==1 */ irq_enter(); - (*func)(info); + (*func) (info); __get_cpu_var(irq_stat).irq_call_count++; irq_exit(); if (wait) { @@ -1046,14 +1032,13 @@ smp_call_function_interrupt(void) } static int -voyager_smp_call_function_mask (cpumask_t cpumask, - void (*func) (void *info), void *info, - int wait) +voyager_smp_call_function_mask(cpumask_t cpumask, + void (*func) (void *info), void *info, int wait) { struct call_data_struct data; u32 mask = cpus_addr(cpumask)[0]; - mask &= ~(1<<smp_processor_id()); + mask &= ~(1 << smp_processor_id()); if (!mask) return 0; @@ -1093,7 +1078,7 @@ voyager_smp_call_function_mask (cpumask_t cpumask, * so we use the system clock to interrupt one processor, which in * turn, broadcasts a timer CPI to all the others --- we receive that * CPI here. We don't use this actually for counting so losing - * ticks doesn't matter + * ticks doesn't matter * * FIXME: For those CPUs which actually have a local APIC, we could * try to use it to trigger this interrupt instead of having to @@ -1101,8 +1086,7 @@ voyager_smp_call_function_mask (cpumask_t cpumask, * no local APIC, so I can't do this * * This function is currently a placeholder and is unused in the code */ -fastcall void -smp_apic_timer_interrupt(struct pt_regs *regs) +void smp_apic_timer_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); wrapper_smp_local_timer_interrupt(); @@ -1110,8 +1094,7 @@ smp_apic_timer_interrupt(struct pt_regs *regs) } /* All of the QUAD interrupt GATES */ -fastcall void -smp_qic_timer_interrupt(struct pt_regs *regs) +void smp_qic_timer_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); ack_QIC_CPI(QIC_TIMER_CPI); @@ -1119,127 +1102,112 @@ smp_qic_timer_interrupt(struct pt_regs *regs) set_irq_regs(old_regs); } -fastcall void -smp_qic_invalidate_interrupt(struct pt_regs *regs) +void smp_qic_invalidate_interrupt(struct pt_regs *regs) { ack_QIC_CPI(QIC_INVALIDATE_CPI); smp_invalidate_interrupt(); } -fastcall void -smp_qic_reschedule_interrupt(struct pt_regs *regs) +void smp_qic_reschedule_interrupt(struct pt_regs *regs) { ack_QIC_CPI(QIC_RESCHEDULE_CPI); smp_reschedule_interrupt(); } -fastcall void -smp_qic_enable_irq_interrupt(struct pt_regs *regs) +void smp_qic_enable_irq_interrupt(struct pt_regs *regs) { ack_QIC_CPI(QIC_ENABLE_IRQ_CPI); smp_enable_irq_interrupt(); } -fastcall void -smp_qic_call_function_interrupt(struct pt_regs *regs) +void smp_qic_call_function_interrupt(struct pt_regs *regs) { ack_QIC_CPI(QIC_CALL_FUNCTION_CPI); smp_call_function_interrupt(); } -fastcall void -smp_vic_cpi_interrupt(struct pt_regs *regs) +void smp_vic_cpi_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); __u8 cpu = smp_processor_id(); - if(is_cpu_quad()) + if (is_cpu_quad()) ack_QIC_CPI(VIC_CPI_LEVEL0); else ack_VIC_CPI(VIC_CPI_LEVEL0); - if(test_and_clear_bit(VIC_TIMER_CPI, &vic_cpi_mailbox[cpu])) + if (test_and_clear_bit(VIC_TIMER_CPI, &vic_cpi_mailbox[cpu])) wrapper_smp_local_timer_interrupt(); - if(test_and_clear_bit(VIC_INVALIDATE_CPI, &vic_cpi_mailbox[cpu])) + if (test_and_clear_bit(VIC_INVALIDATE_CPI, &vic_cpi_mailbox[cpu])) smp_invalidate_interrupt(); - if(test_and_clear_bit(VIC_RESCHEDULE_CPI, &vic_cpi_mailbox[cpu])) + if (test_and_clear_bit(VIC_RESCHEDULE_CPI, &vic_cpi_mailbox[cpu])) smp_reschedule_interrupt(); - if(test_and_clear_bit(VIC_ENABLE_IRQ_CPI, &vic_cpi_mailbox[cpu])) + if (test_and_clear_bit(VIC_ENABLE_IRQ_CPI, &vic_cpi_mailbox[cpu])) smp_enable_irq_interrupt(); - if(test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu])) + if (test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu])) smp_call_function_interrupt(); set_irq_regs(old_regs); } -static void -do_flush_tlb_all(void* info) +static void do_flush_tlb_all(void *info) { unsigned long cpu = smp_processor_id(); __flush_tlb_all(); if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_LAZY) - leave_mm(cpu); + voyager_leave_mm(cpu); } - /* flush the TLB of every active CPU in the system */ -void -flush_tlb_all(void) +void flush_tlb_all(void) { on_each_cpu(do_flush_tlb_all, 0, 1, 1); } /* used to set up the trampoline for other CPUs when the memory manager * is sorted out */ -void __init -smp_alloc_memory(void) +void __init smp_alloc_memory(void) { - trampoline_base = (__u32)alloc_bootmem_low_pages(PAGE_SIZE); - if(__pa(trampoline_base) >= 0x93000) + trampoline_base = (__u32) alloc_bootmem_low_pages(PAGE_SIZE); + if (__pa(trampoline_base) >= 0x93000) BUG(); } /* send a reschedule CPI to one CPU by physical CPU number*/ -static void -voyager_smp_send_reschedule(int cpu) +static void voyager_smp_send_reschedule(int cpu) { send_one_CPI(cpu, VIC_RESCHEDULE_CPI); } - -int -hard_smp_processor_id(void) +int hard_smp_processor_id(void) { __u8 i; __u8 cpumask = inb(VIC_PROC_WHO_AM_I); - if((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER) + if ((cpumask & QUAD_IDENTIFIER) == QUAD_IDENTIFIER) return cpumask & 0x1F; - for(i = 0; i < 8; i++) { - if(cpumask & (1<<i)) + for (i = 0; i < 8; i++) { + if (cpumask & (1 << i)) return i; } printk("** WARNING ** Illegal cpuid returned by VIC: %d", cpumask); return 0; } -int -safe_smp_processor_id(void) +int safe_smp_processor_id(void) { return hard_smp_processor_id(); } /* broadcast a halt to all other CPUs */ -static void -voyager_smp_send_stop(void) +static void voyager_smp_send_stop(void) { smp_call_function(smp_stop_cpu_function, NULL, 1, 1); } /* this function is triggered in time.c when a clock tick fires * we need to re-broadcast the tick to all CPUs */ -void -smp_vic_timer_interrupt(void) +void smp_vic_timer_interrupt(void) { send_CPI_allbutself(VIC_TIMER_CPI); smp_local_timer_interrupt(); @@ -1253,8 +1221,7 @@ smp_vic_timer_interrupt(void) * multiplier is 1 and it can be changed by writing the new multiplier * value into /proc/profile. */ -void -smp_local_timer_interrupt(void) +void smp_local_timer_interrupt(void) { int cpu = smp_processor_id(); long weight; @@ -1269,18 +1236,18 @@ smp_local_timer_interrupt(void) * * Interrupts are already masked off at this point. */ - per_cpu(prof_counter,cpu) = per_cpu(prof_multiplier, cpu); + per_cpu(prof_counter, cpu) = per_cpu(prof_multiplier, cpu); if (per_cpu(prof_counter, cpu) != - per_cpu(prof_old_multiplier, cpu)) { + per_cpu(prof_old_multiplier, cpu)) { /* FIXME: need to update the vic timer tick here */ per_cpu(prof_old_multiplier, cpu) = - per_cpu(prof_counter, cpu); + per_cpu(prof_counter, cpu); } update_process_times(user_mode_vm(get_irq_regs())); } - if( ((1<<cpu) & voyager_extended_vic_processors) == 0) + if (((1 << cpu) & voyager_extended_vic_processors) == 0) /* only extended VIC processors participate in * interrupt distribution */ return; @@ -1296,12 +1263,12 @@ smp_local_timer_interrupt(void) * we can take more than 100K local irqs per second on a 100 MHz P5. */ - if((++vic_tick[cpu] & 0x7) != 0) + if ((++vic_tick[cpu] & 0x7) != 0) return; /* get here every 16 ticks (about every 1/6 of a second) */ /* Change our priority to give someone else a chance at getting - * the IRQ. The algorithm goes like this: + * the IRQ. The algorithm goes like this: * * In the VIC, the dynamically routed interrupt is always * handled by the lowest priority eligible (i.e. receiving @@ -1325,18 +1292,18 @@ smp_local_timer_interrupt(void) * affinity code since we now try to even up the interrupt * counts when an affinity binding is keeping them on a * particular CPU*/ - weight = (vic_intr_count[cpu]*voyager_extended_cpus + weight = (vic_intr_count[cpu] * voyager_extended_cpus - vic_intr_total) >> 4; weight += 4; - if(weight > 7) + if (weight > 7) weight = 7; - if(weight < 0) + if (weight < 0) weight = 0; - - outb((__u8)weight, VIC_PRIORITY_REGISTER); + + outb((__u8) weight, VIC_PRIORITY_REGISTER); #ifdef VOYAGER_DEBUG - if((vic_tick[cpu] & 0xFFF) == 0) { + if ((vic_tick[cpu] & 0xFFF) == 0) { /* print this message roughly every 25 secs */ printk("VOYAGER SMP: vic_tick[%d] = %lu, weight = %ld\n", cpu, vic_tick[cpu], weight); @@ -1345,15 +1312,14 @@ smp_local_timer_interrupt(void) } /* setup the profiling timer */ -int -setup_profiling_timer(unsigned int multiplier) +int setup_profiling_timer(unsigned int multiplier) { int i; - if ( (!multiplier)) + if ((!multiplier)) return -EINVAL; - /* + /* * Set the new multiplier for each CPU. CPUs don't start using the * new values until the next timer interrupt in which they do process * accounting. @@ -1367,15 +1333,13 @@ setup_profiling_timer(unsigned int multiplier) /* This is a bit of a mess, but forced on us by the genirq changes * there's no genirq handler that really does what voyager wants * so hack it up with the simple IRQ handler */ -static void fastcall -handle_vic_irq(unsigned int irq, struct irq_desc *desc) +static void handle_vic_irq(unsigned int irq, struct irq_desc *desc) { before_handle_vic_irq(irq); handle_simple_irq(irq, desc); after_handle_vic_irq(irq); } - /* The CPIs are handled in the per cpu 8259s, so they must be * enabled to be received: FIX: enabling the CPIs in the early * boot sequence interferes with bug checking; enable them later @@ -1385,13 +1349,12 @@ handle_vic_irq(unsigned int irq, struct irq_desc *desc) #define QIC_SET_GATE(cpi, vector) \ set_intr_gate((cpi) + QIC_DEFAULT_CPI_BASE, (vector)) -void __init -smp_intr_init(void) +void __init smp_intr_init(void) { int i; /* initialize the per cpu irq mask to all disabled */ - for(i = 0; i < NR_CPUS; i++) + for (i = 0; i < NR_CPUS; i++) vic_irq_mask[i] = 0xFFFF; VIC_SET_GATE(VIC_CPI_LEVEL0, vic_cpi_interrupt); @@ -1404,42 +1367,40 @@ smp_intr_init(void) QIC_SET_GATE(QIC_RESCHEDULE_CPI, qic_reschedule_interrupt); QIC_SET_GATE(QIC_ENABLE_IRQ_CPI, qic_enable_irq_interrupt); QIC_SET_GATE(QIC_CALL_FUNCTION_CPI, qic_call_function_interrupt); - - /* now put the VIC descriptor into the first 48 IRQs + /* now put the VIC descriptor into the first 48 IRQs * * This is for later: first 16 correspond to PC IRQs; next 16 * are Primary MC IRQs and final 16 are Secondary MC IRQs */ - for(i = 0; i < 48; i++) + for (i = 0; i < 48; i++) set_irq_chip_and_handler(i, &vic_chip, handle_vic_irq); } /* send a CPI at level cpi to a set of cpus in cpuset (set 1 bit per * processor to receive CPI */ -static void -send_CPI(__u32 cpuset, __u8 cpi) +static void send_CPI(__u32 cpuset, __u8 cpi) { int cpu; __u32 quad_cpuset = (cpuset & voyager_quad_processors); - if(cpi < VIC_START_FAKE_CPI) { - /* fake CPI are only used for booting, so send to the + if (cpi < VIC_START_FAKE_CPI) { + /* fake CPI are only used for booting, so send to the * extended quads as well---Quads must be VIC booted */ - outb((__u8)(cpuset), VIC_CPI_Registers[cpi]); + outb((__u8) (cpuset), VIC_CPI_Registers[cpi]); return; } - if(quad_cpuset) + if (quad_cpuset) send_QIC_CPI(quad_cpuset, cpi); cpuset &= ~quad_cpuset; cpuset &= 0xff; /* only first 8 CPUs vaild for VIC CPI */ - if(cpuset == 0) + if (cpuset == 0) return; for_each_online_cpu(cpu) { - if(cpuset & (1<<cpu)) + if (cpuset & (1 << cpu)) set_bit(cpi, &vic_cpi_mailbox[cpu]); } - if(cpuset) - outb((__u8)cpuset, VIC_CPI_Registers[VIC_CPI_LEVEL0]); + if (cpuset) + outb((__u8) cpuset, VIC_CPI_Registers[VIC_CPI_LEVEL0]); } /* Acknowledge receipt of CPI in the QIC, clear in QIC hardware and @@ -1448,20 +1409,19 @@ send_CPI(__u32 cpuset, __u8 cpi) * DON'T make this inline otherwise the cache line read will be * optimised away * */ -static int -ack_QIC_CPI(__u8 cpi) { +static int ack_QIC_CPI(__u8 cpi) +{ __u8 cpu = hard_smp_processor_id(); cpi &= 7; - outb(1<<cpi, QIC_INTERRUPT_CLEAR1); + outb(1 << cpi, QIC_INTERRUPT_CLEAR1); return voyager_quad_cpi_addr[cpu]->qic_cpi[cpi].cpi; } -static void -ack_special_QIC_CPI(__u8 cpi) +static void ack_special_QIC_CPI(__u8 cpi) { - switch(cpi) { + switch (cpi) { case VIC_CMN_INT: outb(QIC_CMN_INT, QIC_INTERRUPT_CLEAR0); break; @@ -1474,8 +1434,7 @@ ack_special_QIC_CPI(__u8 cpi) } /* Acknowledge receipt of CPI in the VIC (essentially an EOI) */ -static void -ack_VIC_CPI(__u8 cpi) +static void ack_VIC_CPI(__u8 cpi) { #ifdef VOYAGER_DEBUG unsigned long flags; @@ -1484,17 +1443,17 @@ ack_VIC_CPI(__u8 cpi) local_irq_save(flags); isr = vic_read_isr(); - if((isr & (1<<(cpi &7))) == 0) { + if ((isr & (1 << (cpi & 7))) == 0) { printk("VOYAGER SMP: CPU%d lost CPI%d\n", cpu, cpi); } #endif /* send specific EOI; the two system interrupts have * bit 4 set for a separate vector but behave as the * corresponding 3 bit intr */ - outb_p(0x60|(cpi & 7),0x20); + outb_p(0x60 | (cpi & 7), 0x20); #ifdef VOYAGER_DEBUG - if((vic_read_isr() & (1<<(cpi &7))) != 0) { + if ((vic_read_isr() & (1 << (cpi & 7))) != 0) { printk("VOYAGER SMP: CPU%d still asserting CPI%d\n", cpu, cpi); } local_irq_restore(flags); @@ -1502,12 +1461,11 @@ ack_VIC_CPI(__u8 cpi) } /* cribbed with thanks from irq.c */ -#define __byte(x,y) (((unsigned char *)&(y))[x]) +#define __byte(x,y) (((unsigned char *)&(y))[x]) #define cached_21(cpu) (__byte(0,vic_irq_mask[cpu])) #define cached_A1(cpu) (__byte(1,vic_irq_mask[cpu])) -static unsigned int -startup_vic_irq(unsigned int irq) +static unsigned int startup_vic_irq(unsigned int irq) { unmask_vic_irq(irq); @@ -1535,13 +1493,12 @@ startup_vic_irq(unsigned int irq) * broadcast an Interrupt enable CPI which causes all other CPUs to * adjust their masks accordingly. */ -static void -unmask_vic_irq(unsigned int irq) +static void unmask_vic_irq(unsigned int irq) { /* linux doesn't to processor-irq affinity, so enable on * all CPUs we know about */ int cpu = smp_processor_id(), real_cpu; - __u16 mask = (1<<irq); + __u16 mask = (1 << irq); __u32 processorList = 0; unsigned long flags; @@ -1549,78 +1506,72 @@ unmask_vic_irq(unsigned int irq) irq, cpu, cpu_irq_affinity[cpu])); spin_lock_irqsave(&vic_irq_lock, flags); for_each_online_cpu(real_cpu) { - if(!(voyager_extended_vic_processors & (1<<real_cpu))) + if (!(voyager_extended_vic_processors & (1 << real_cpu))) continue; - if(!(cpu_irq_affinity[real_cpu] & mask)) { + if (!(cpu_irq_affinity[real_cpu] & mask)) { /* irq has no affinity for this CPU, ignore */ continue; } - if(real_cpu == cpu) { + if (real_cpu == cpu) { enable_local_vic_irq(irq); - } - else if(vic_irq_mask[real_cpu] & mask) { + } else if (vic_irq_mask[real_cpu] & mask) { vic_irq_enable_mask[real_cpu] |= mask; - processorList |= (1<<real_cpu); + processorList |= (1 << real_cpu); } } spin_unlock_irqrestore(&vic_irq_lock, flags); - if(processorList) + if (processorList) send_CPI(processorList, VIC_ENABLE_IRQ_CPI); } -static void -mask_vic_irq(unsigned int irq) +static void mask_vic_irq(unsigned int irq) { /* lazy disable, do nothing */ } -static void -enable_local_vic_irq(unsigned int irq) +static void enable_local_vic_irq(unsigned int irq) { __u8 cpu = smp_processor_id(); __u16 mask = ~(1 << irq); __u16 old_mask = vic_irq_mask[cpu]; vic_irq_mask[cpu] &= mask; - if(vic_irq_mask[cpu] == old_mask) + if (vic_irq_mask[cpu] == old_mask) return; VDEBUG(("VOYAGER DEBUG: Enabling irq %d in hardware on CPU %d\n", irq, cpu)); if (irq & 8) { - outb_p(cached_A1(cpu),0xA1); + outb_p(cached_A1(cpu), 0xA1); (void)inb_p(0xA1); - } - else { - outb_p(cached_21(cpu),0x21); + } else { + outb_p(cached_21(cpu), 0x21); (void)inb_p(0x21); } } -static void -disable_local_vic_irq(unsigned int irq) +static void disable_local_vic_irq(unsigned int irq) { __u8 cpu = smp_processor_id(); __u16 mask = (1 << irq); __u16 old_mask = vic_irq_mask[cpu]; - if(irq == 7) + if (irq == 7) return; vic_irq_mask[cpu] |= mask; - if(old_mask == vic_irq_mask[cpu]) + if (old_mask == vic_irq_mask[cpu]) return; VDEBUG(("VOYAGER DEBUG: Disabling irq %d in hardware on CPU %d\n", irq, cpu)); if (irq & 8) { - outb_p(cached_A1(cpu),0xA1); + outb_p(cached_A1(cpu), 0xA1); (void)inb_p(0xA1); - } - else { - outb_p(cached_21(cpu),0x21); + } else { + outb_p(cached_21(cpu), 0x21); (void)inb_p(0x21); } } @@ -1631,8 +1582,7 @@ disable_local_vic_irq(unsigned int irq) * interrupt in the vic, so we merely set a flag (IRQ_DISABLED). If * this interrupt actually comes in, then we mask and ack here to push * the interrupt off to another CPU */ -static void -before_handle_vic_irq(unsigned int irq) +static void before_handle_vic_irq(unsigned int irq) { irq_desc_t *desc = irq_desc + irq; __u8 cpu = smp_processor_id(); @@ -1641,16 +1591,16 @@ before_handle_vic_irq(unsigned int irq) vic_intr_total++; vic_intr_count[cpu]++; - if(!(cpu_irq_affinity[cpu] & (1<<irq))) { + if (!(cpu_irq_affinity[cpu] & (1 << irq))) { /* The irq is not in our affinity mask, push it off * onto another CPU */ - VDEBUG(("VOYAGER DEBUG: affinity triggered disable of irq %d on cpu %d\n", - irq, cpu)); + VDEBUG(("VOYAGER DEBUG: affinity triggered disable of irq %d " + "on cpu %d\n", irq, cpu)); disable_local_vic_irq(irq); /* set IRQ_INPROGRESS to prevent the handler in irq.c from * actually calling the interrupt routine */ desc->status |= IRQ_REPLAY | IRQ_INPROGRESS; - } else if(desc->status & IRQ_DISABLED) { + } else if (desc->status & IRQ_DISABLED) { /* Damn, the interrupt actually arrived, do the lazy * disable thing. The interrupt routine in irq.c will * not handle a IRQ_DISABLED interrupt, so nothing more @@ -1667,8 +1617,7 @@ before_handle_vic_irq(unsigned int irq) } /* Finish the VIC interrupt: basically mask */ -static void -after_handle_vic_irq(unsigned int irq) +static void after_handle_vic_irq(unsigned int irq) { irq_desc_t *desc = irq_desc + irq; @@ -1685,11 +1634,11 @@ after_handle_vic_irq(unsigned int irq) #ifdef VOYAGER_DEBUG /* DEBUG: before we ack, check what's in progress */ isr = vic_read_isr(); - if((isr & (1<<irq) && !(status & IRQ_REPLAY)) == 0) { + if ((isr & (1 << irq) && !(status & IRQ_REPLAY)) == 0) { int i; __u8 cpu = smp_processor_id(); __u8 real_cpu; - int mask; /* Um... initialize me??? --RR */ + int mask; /* Um... initialize me??? --RR */ printk("VOYAGER SMP: CPU%d lost interrupt %d\n", cpu, irq); @@ -1698,9 +1647,10 @@ after_handle_vic_irq(unsigned int irq) outb(VIC_CPU_MASQUERADE_ENABLE | real_cpu, VIC_PROCESSOR_ID); isr = vic_read_isr(); - if(isr & (1<<irq)) { - printk("VOYAGER SMP: CPU%d ack irq %d\n", - real_cpu, irq); + if (isr & (1 << irq)) { + printk + ("VOYAGER SMP: CPU%d ack irq %d\n", + real_cpu, irq); ack_vic_irq(irq); } outb(cpu, VIC_PROCESSOR_ID); @@ -1711,7 +1661,7 @@ after_handle_vic_irq(unsigned int irq) * receipt by another CPU so everything must be in * order here */ ack_vic_irq(irq); - if(status & IRQ_REPLAY) { + if (status & IRQ_REPLAY) { /* replay is set if we disable the interrupt * in the before_handle_vic_irq() routine, so * clear the in progress bit here to allow the @@ -1720,9 +1670,9 @@ after_handle_vic_irq(unsigned int irq) } #ifdef VOYAGER_DEBUG isr = vic_read_isr(); - if((isr & (1<<irq)) != 0) - printk("VOYAGER SMP: after_handle_vic_irq() after ack irq=%d, isr=0x%x\n", - irq, isr); + if ((isr & (1 << irq)) != 0) + printk("VOYAGER SMP: after_handle_vic_irq() after " + "ack irq=%d, isr=0x%x\n", irq, isr); #endif /* VOYAGER_DEBUG */ } _raw_spin_unlock(&vic_irq_lock); @@ -1731,7 +1681,6 @@ after_handle_vic_irq(unsigned int irq) * may be intercepted by another CPU if reasserted */ } - /* Linux processor - interrupt affinity manipulations. * * For each processor, we maintain a 32 bit irq affinity mask. @@ -1748,8 +1697,7 @@ after_handle_vic_irq(unsigned int irq) * change the mask and then do an interrupt enable CPI to re-enable on * the selected processors */ -void -set_vic_irq_affinity(unsigned int irq, cpumask_t mask) +void set_vic_irq_affinity(unsigned int irq, cpumask_t mask) { /* Only extended processors handle interrupts */ unsigned long real_mask; @@ -1757,13 +1705,13 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask) int cpu; real_mask = cpus_addr(mask)[0] & voyager_extended_vic_processors; - - if(cpus_addr(mask)[0] == 0) + + if (cpus_addr(mask)[0] == 0) /* can't have no CPUs to accept the interrupt -- extremely * bad things will happen */ return; - if(irq == 0) + if (irq == 0) /* can't change the affinity of the timer IRQ. This * is due to the constraint in the voyager * architecture that the CPI also comes in on and IRQ @@ -1772,7 +1720,7 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask) * will no-longer be able to accept VIC CPIs */ return; - if(irq >= 32) + if (irq >= 32) /* You can only have 32 interrupts in a voyager system * (and 32 only if you have a secondary microchannel * bus) */ @@ -1780,8 +1728,8 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask) for_each_online_cpu(cpu) { unsigned long cpu_mask = 1 << cpu; - - if(cpu_mask & real_mask) { + + if (cpu_mask & real_mask) { /* enable the interrupt for this cpu */ cpu_irq_affinity[cpu] |= irq_mask; } else { @@ -1800,25 +1748,23 @@ set_vic_irq_affinity(unsigned int irq, cpumask_t mask) unmask_vic_irq(irq); } -static void -ack_vic_irq(unsigned int irq) +static void ack_vic_irq(unsigned int irq) { if (irq & 8) { - outb(0x62,0x20); /* Specific EOI to cascade */ - outb(0x60|(irq & 7),0xA0); + outb(0x62, 0x20); /* Specific EOI to cascade */ + outb(0x60 | (irq & 7), 0xA0); } else { - outb(0x60 | (irq & 7),0x20); + outb(0x60 | (irq & 7), 0x20); } } /* enable the CPIs. In the VIC, the CPIs are delivered by the 8259 * but are not vectored by it. This means that the 8259 mask must be * lowered to receive them */ -static __init void -vic_enable_cpi(void) +static __init void vic_enable_cpi(void) { __u8 cpu = smp_processor_id(); - + /* just take a copy of the current mask (nop for boot cpu) */ vic_irq_mask[cpu] = vic_irq_mask[boot_cpu_id]; @@ -1827,7 +1773,7 @@ vic_enable_cpi(void) /* for sys int and cmn int */ enable_local_vic_irq(7); - if(is_cpu_quad()) { + if (is_cpu_quad()) { outb(QIC_DEFAULT_MASK0, QIC_MASK_REGISTER0); outb(QIC_CPI_ENABLE, QIC_MASK_REGISTER1); VDEBUG(("VOYAGER SMP: QIC ENABLE CPI: CPU%d: MASK 0x%x\n", @@ -1838,8 +1784,7 @@ vic_enable_cpi(void) cpu, vic_irq_mask[cpu])); } -void -voyager_smp_dump() +void voyager_smp_dump() { int old_cpu = smp_processor_id(), cpu; @@ -1865,10 +1810,10 @@ voyager_smp_dump() cpu, vic_irq_mask[cpu], imr, irr, isr); #if 0 /* These lines are put in to try to unstick an un ack'd irq */ - if(isr != 0) { + if (isr != 0) { int irq; - for(irq=0; irq<16; irq++) { - if(isr & (1<<irq)) { + for (irq = 0; irq < 16; irq++) { + if (isr & (1 << irq)) { printk("\tCPU%d: ack irq %d\n", cpu, irq); local_irq_save(flags); @@ -1884,17 +1829,15 @@ voyager_smp_dump() } } -void -smp_voyager_power_off(void *dummy) +void smp_voyager_power_off(void *dummy) { - if(smp_processor_id() == boot_cpu_id) + if (smp_processor_id() == boot_cpu_id) voyager_power_off(); else smp_stop_cpu_function(NULL); } -static void __init -voyager_smp_prepare_cpus(unsigned int max_cpus) +static void __init voyager_smp_prepare_cpus(unsigned int max_cpus) { /* FIXME: ignore max_cpus for now */ smp_boot_cpus(); @@ -1911,8 +1854,7 @@ static void __cpuinit voyager_smp_prepare_boot_cpu(void) cpu_set(smp_processor_id(), cpu_present_map); } -static int __cpuinit -voyager_cpu_up(unsigned int cpu) +static int __cpuinit voyager_cpu_up(unsigned int cpu) { /* This only works at boot for x86. See "rewrite" above. */ if (cpu_isset(cpu, smp_commenced_mask)) @@ -1928,14 +1870,12 @@ voyager_cpu_up(unsigned int cpu) return 0; } -static void __init -voyager_smp_cpus_done(unsigned int max_cpus) +static void __init voyager_smp_cpus_done(unsigned int max_cpus) { zap_low_mappings(); } -void __init -smp_setup_processor_id(void) +void __init smp_setup_processor_id(void) { current_thread_info()->cpu = hard_smp_processor_id(); x86_write_percpu(cpu_number, hard_smp_processor_id()); diff --git a/arch/x86/mach-voyager/voyager_thread.c b/arch/x86/mach-voyager/voyager_thread.c index 50f9366..c69c931 100644 --- a/arch/x86/mach-voyager/voyager_thread.c +++ b/arch/x86/mach-voyager/voyager_thread.c @@ -30,12 +30,10 @@ #include <asm/mtrr.h> #include <asm/msr.h> - struct task_struct *voyager_thread; static __u8 set_timeout; -static int -execute(const char *string) +static int execute(const char *string) { int ret; @@ -52,48 +50,48 @@ execute(const char *string) NULL, }; - if ((ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC)) != 0) { - printk(KERN_ERR "Voyager failed to run \"%s\": %i\n", - string, ret); + if ((ret = + call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC)) != 0) { + printk(KERN_ERR "Voyager failed to run \"%s\": %i\n", string, + ret); } return ret; } -static void -check_from_kernel(void) +static void check_from_kernel(void) { - if(voyager_status.switch_off) { - + if (voyager_status.switch_off) { + /* FIXME: This should be configurable via proc */ execute("umask 600; echo 0 > /etc/initrunlvl; kill -HUP 1"); - } else if(voyager_status.power_fail) { + } else if (voyager_status.power_fail) { VDEBUG(("Voyager daemon detected AC power failure\n")); - + /* FIXME: This should be configureable via proc */ execute("umask 600; echo F > /etc/powerstatus; kill -PWR 1"); set_timeout = 1; } } -static void -check_continuing_condition(void) +static void check_continuing_condition(void) { - if(voyager_status.power_fail) { + if (voyager_status.power_fail) { __u8 data; - voyager_cat_psi(VOYAGER_PSI_SUBREAD, + voyager_cat_psi(VOYAGER_PSI_SUBREAD, VOYAGER_PSI_AC_FAIL_REG, &data); - if((data & 0x1f) == 0) { + if ((data & 0x1f) == 0) { /* all power restored */ - printk(KERN_NOTICE "VOYAGER AC power restored, cancelling shutdown\n"); + printk(KERN_NOTICE + "VOYAGER AC power restored, cancelling shutdown\n"); /* FIXME: should be user configureable */ - execute("umask 600; echo O > /etc/powerstatus; kill -PWR 1"); + execute + ("umask 600; echo O > /etc/powerstatus; kill -PWR 1"); set_timeout = 0; } } } -static int -thread(void *unused) +static int thread(void *unused) { printk(KERN_NOTICE "Voyager starting monitor thread\n"); @@ -102,7 +100,7 @@ thread(void *unused) schedule_timeout(set_timeout ? HZ : MAX_SCHEDULE_TIMEOUT); VDEBUG(("Voyager Daemon awoken\n")); - if(voyager_status.request_from_kernel == 0) { + if (voyager_status.request_from_kernel == 0) { /* probably awoken from timeout */ check_continuing_condition(); } else { @@ -112,20 +110,18 @@ thread(void *unused) } } -static int __init -voyager_thread_start(void) +static int __init voyager_thread_start(void) { voyager_thread = kthread_run(thread, NULL, "kvoyagerd"); if (IS_ERR(voyager_thread)) { - printk(KERN_ERR "Voyager: Failed to create system monitor thread.\n"); + printk(KERN_ERR + "Voyager: Failed to create system monitor thread.\n"); return PTR_ERR(voyager_thread); } return 0; } - -static void __exit -voyager_thread_stop(void) +static void __exit voyager_thread_stop(void) { kthread_stop(voyager_thread); } |
