diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/alpha/kernel/setup.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/alpha/kernel/setup.c | 1514 |
1 files changed, 0 insertions, 1514 deletions
diff --git a/ANDROID_3.4.5/arch/alpha/kernel/setup.c b/ANDROID_3.4.5/arch/alpha/kernel/setup.c deleted file mode 100644 index 9e3107cc..00000000 --- a/ANDROID_3.4.5/arch/alpha/kernel/setup.c +++ /dev/null @@ -1,1514 +0,0 @@ -/* - * linux/arch/alpha/kernel/setup.c - * - * Copyright (C) 1995 Linus Torvalds - */ - -/* 2.3.x bootmem, 1999 Andrea Arcangeli <andrea@suse.de> */ - -/* - * Bootup setup stuff. - */ - -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/user.h> -#include <linux/screen_info.h> -#include <linux/delay.h> -#include <linux/mc146818rtc.h> -#include <linux/console.h> -#include <linux/cpu.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/platform_device.h> -#include <linux/bootmem.h> -#include <linux/pci.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/initrd.h> -#include <linux/eisa.h> -#include <linux/pfn.h> -#ifdef CONFIG_MAGIC_SYSRQ -#include <linux/sysrq.h> -#include <linux/reboot.h> -#endif -#include <linux/notifier.h> -#include <asm/setup.h> -#include <asm/io.h> -#include <linux/log2.h> -#include <linux/export.h> - -extern struct atomic_notifier_head panic_notifier_list; -static int alpha_panic_event(struct notifier_block *, unsigned long, void *); -static struct notifier_block alpha_panic_block = { - alpha_panic_event, - NULL, - INT_MAX /* try to do it first */ -}; - -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/hwrpb.h> -#include <asm/dma.h> -#include <asm/mmu_context.h> -#include <asm/console.h> - -#include "proto.h" -#include "pci_impl.h" - - -struct hwrpb_struct *hwrpb; -EXPORT_SYMBOL(hwrpb); -unsigned long srm_hae; - -int alpha_l1i_cacheshape; -int alpha_l1d_cacheshape; -int alpha_l2_cacheshape; -int alpha_l3_cacheshape; - -#ifdef CONFIG_VERBOSE_MCHECK -/* 0=minimum, 1=verbose, 2=all */ -/* These can be overridden via the command line, ie "verbose_mcheck=2") */ -unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON; -#endif - -#ifdef CONFIG_NUMA -struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly; -EXPORT_SYMBOL(node_to_cpumask_map); -#endif - -/* Which processor we booted from. */ -int boot_cpuid; - -/* - * Using SRM callbacks for initial console output. This works from - * setup_arch() time through the end of time_init(), as those places - * are under our (Alpha) control. - - * "srmcons" specified in the boot command arguments allows us to - * see kernel messages during the period of time before the true - * console device is "registered" during console_init(). - * As of this version (2.5.59), console_init() will call - * disable_early_printk() as the last action before initializing - * the console drivers. That's the last possible time srmcons can be - * unregistered without interfering with console behavior. - * - * By default, OFF; set it with a bootcommand arg of "srmcons" or - * "console=srm". The meaning of these two args is: - * "srmcons" - early callback prints - * "console=srm" - full callback based console, including early prints - */ -int srmcons_output = 0; - -/* Enforce a memory size limit; useful for testing. By default, none. */ -unsigned long mem_size_limit = 0; - -/* Set AGP GART window size (0 means disabled). */ -unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE; - -#ifdef CONFIG_ALPHA_GENERIC -struct alpha_machine_vector alpha_mv; -int alpha_using_srm; -EXPORT_SYMBOL(alpha_using_srm); -#endif - -static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long, - unsigned long); -static struct alpha_machine_vector *get_sysvec_byname(const char *); -static void get_sysnames(unsigned long, unsigned long, unsigned long, - char **, char **); -static void determine_cpu_caches (unsigned int); - -static char __initdata command_line[COMMAND_LINE_SIZE]; - -/* - * The format of "screen_info" is strange, and due to early - * i386-setup code. This is just enough to make the console - * code think we're on a VGA color display. - */ - -struct screen_info screen_info = { - .orig_x = 0, - .orig_y = 25, - .orig_video_cols = 80, - .orig_video_lines = 25, - .orig_video_isVGA = 1, - .orig_video_points = 16 -}; - -EXPORT_SYMBOL(screen_info); - -/* - * The direct map I/O window, if any. This should be the same - * for all busses, since it's used by virt_to_bus. - */ - -unsigned long __direct_map_base; -unsigned long __direct_map_size; -EXPORT_SYMBOL(__direct_map_base); -EXPORT_SYMBOL(__direct_map_size); - -/* - * Declare all of the machine vectors. - */ - -/* GCC 2.7.2 (on alpha at least) is lame. It does not support either - __attribute__((weak)) or #pragma weak. Bypass it and talk directly - to the assembler. */ - -#define WEAK(X) \ - extern struct alpha_machine_vector X; \ - asm(".weak "#X) - -WEAK(alcor_mv); -WEAK(alphabook1_mv); -WEAK(avanti_mv); -WEAK(cabriolet_mv); -WEAK(clipper_mv); -WEAK(dp264_mv); -WEAK(eb164_mv); -WEAK(eb64p_mv); -WEAK(eb66_mv); -WEAK(eb66p_mv); -WEAK(eiger_mv); -WEAK(jensen_mv); -WEAK(lx164_mv); -WEAK(lynx_mv); -WEAK(marvel_ev7_mv); -WEAK(miata_mv); -WEAK(mikasa_mv); -WEAK(mikasa_primo_mv); -WEAK(monet_mv); -WEAK(nautilus_mv); -WEAK(noname_mv); -WEAK(noritake_mv); -WEAK(noritake_primo_mv); -WEAK(p2k_mv); -WEAK(pc164_mv); -WEAK(privateer_mv); -WEAK(rawhide_mv); -WEAK(ruffian_mv); -WEAK(rx164_mv); -WEAK(sable_mv); -WEAK(sable_gamma_mv); -WEAK(shark_mv); -WEAK(sx164_mv); -WEAK(takara_mv); -WEAK(titan_mv); -WEAK(webbrick_mv); -WEAK(wildfire_mv); -WEAK(xl_mv); -WEAK(xlt_mv); - -#undef WEAK - -/* - * I/O resources inherited from PeeCees. Except for perhaps the - * turbochannel alphas, everyone has these on some sort of SuperIO chip. - * - * ??? If this becomes less standard, move the struct out into the - * machine vector. - */ - -static void __init -reserve_std_resources(void) -{ - static struct resource standard_io_resources[] = { - { .name = "rtc", .start = -1, .end = -1 }, - { .name = "dma1", .start = 0x00, .end = 0x1f }, - { .name = "pic1", .start = 0x20, .end = 0x3f }, - { .name = "timer", .start = 0x40, .end = 0x5f }, - { .name = "keyboard", .start = 0x60, .end = 0x6f }, - { .name = "dma page reg", .start = 0x80, .end = 0x8f }, - { .name = "pic2", .start = 0xa0, .end = 0xbf }, - { .name = "dma2", .start = 0xc0, .end = 0xdf }, - }; - - struct resource *io = &ioport_resource; - size_t i; - - if (hose_head) { - struct pci_controller *hose; - for (hose = hose_head; hose; hose = hose->next) - if (hose->index == 0) { - io = hose->io_space; - break; - } - } - - /* Fix up for the Jensen's queer RTC placement. */ - standard_io_resources[0].start = RTC_PORT(0); - standard_io_resources[0].end = RTC_PORT(0) + 0x10; - - for (i = 0; i < ARRAY_SIZE(standard_io_resources); ++i) - request_resource(io, standard_io_resources+i); -} - -#define PFN_MAX PFN_DOWN(0x80000000) -#define for_each_mem_cluster(memdesc, _cluster, i) \ - for ((_cluster) = (memdesc)->cluster, (i) = 0; \ - (i) < (memdesc)->numclusters; (i)++, (_cluster)++) - -static unsigned long __init -get_mem_size_limit(char *s) -{ - unsigned long end = 0; - char *from = s; - - end = simple_strtoul(from, &from, 0); - if ( *from == 'K' || *from == 'k' ) { - end = end << 10; - from++; - } else if ( *from == 'M' || *from == 'm' ) { - end = end << 20; - from++; - } else if ( *from == 'G' || *from == 'g' ) { - end = end << 30; - from++; - } - return end >> PAGE_SHIFT; /* Return the PFN of the limit. */ -} - -#ifdef CONFIG_BLK_DEV_INITRD -void * __init -move_initrd(unsigned long mem_limit) -{ - void *start; - unsigned long size; - - size = initrd_end - initrd_start; - start = __alloc_bootmem(PAGE_ALIGN(size), PAGE_SIZE, 0); - if (!start || __pa(start) + size > mem_limit) { - initrd_start = initrd_end = 0; - return NULL; - } - memmove(start, (void *)initrd_start, size); - initrd_start = (unsigned long)start; - initrd_end = initrd_start + size; - printk("initrd moved to %p\n", start); - return start; -} -#endif - -#ifndef CONFIG_DISCONTIGMEM -static void __init -setup_memory(void *kernel_end) -{ - struct memclust_struct * cluster; - struct memdesc_struct * memdesc; - unsigned long start_kernel_pfn, end_kernel_pfn; - unsigned long bootmap_size, bootmap_pages, bootmap_start; - unsigned long start, end; - unsigned long i; - - /* Find free clusters, and init and free the bootmem accordingly. */ - memdesc = (struct memdesc_struct *) - (hwrpb->mddt_offset + (unsigned long) hwrpb); - - for_each_mem_cluster(memdesc, cluster, i) { - printk("memcluster %lu, usage %01lx, start %8lu, end %8lu\n", - i, cluster->usage, cluster->start_pfn, - cluster->start_pfn + cluster->numpages); - - /* Bit 0 is console/PALcode reserved. Bit 1 is - non-volatile memory -- we might want to mark - this for later. */ - if (cluster->usage & 3) - continue; - - end = cluster->start_pfn + cluster->numpages; - if (end > max_low_pfn) - max_low_pfn = end; - } - - /* - * Except for the NUMA systems (wildfire, marvel) all of the - * Alpha systems we run on support 32GB of memory or less. - * Since the NUMA systems introduce large holes in memory addressing, - * we can get into a situation where there is not enough contiguous - * memory for the memory map. - * - * Limit memory to the first 32GB to limit the NUMA systems to - * memory on their first node (wildfire) or 2 (marvel) to avoid - * not being able to produce the memory map. In order to access - * all of the memory on the NUMA systems, build with discontiguous - * memory support. - * - * If the user specified a memory limit, let that memory limit stand. - */ - if (!mem_size_limit) - mem_size_limit = (32ul * 1024 * 1024 * 1024) >> PAGE_SHIFT; - - if (mem_size_limit && max_low_pfn >= mem_size_limit) - { - printk("setup: forcing memory size to %ldK (from %ldK).\n", - mem_size_limit << (PAGE_SHIFT - 10), - max_low_pfn << (PAGE_SHIFT - 10)); - max_low_pfn = mem_size_limit; - } - - /* Find the bounds of kernel memory. */ - start_kernel_pfn = PFN_DOWN(KERNEL_START_PHYS); - end_kernel_pfn = PFN_UP(virt_to_phys(kernel_end)); - bootmap_start = -1; - - try_again: - if (max_low_pfn <= end_kernel_pfn) - panic("not enough memory to boot"); - - /* We need to know how many physically contiguous pages - we'll need for the bootmap. */ - bootmap_pages = bootmem_bootmap_pages(max_low_pfn); - - /* Now find a good region where to allocate the bootmap. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = start + cluster->numpages; - if (start >= max_low_pfn) - continue; - if (end > max_low_pfn) - end = max_low_pfn; - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn - && end - end_kernel_pfn >= bootmap_pages) { - bootmap_start = end_kernel_pfn; - break; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (end - start >= bootmap_pages) { - bootmap_start = start; - break; - } - } - - if (bootmap_start == ~0UL) { - max_low_pfn >>= 1; - goto try_again; - } - - /* Allocate the bootmap and mark the whole MM as reserved. */ - bootmap_size = init_bootmem(bootmap_start, max_low_pfn); - - /* Mark the free regions. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = cluster->start_pfn + cluster->numpages; - if (start >= max_low_pfn) - continue; - if (end > max_low_pfn) - end = max_low_pfn; - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn) { - free_bootmem(PFN_PHYS(start), - (PFN_PHYS(start_kernel_pfn) - - PFN_PHYS(start))); - printk("freeing pages %ld:%ld\n", - start, start_kernel_pfn); - start = end_kernel_pfn; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (start >= end) - continue; - - free_bootmem(PFN_PHYS(start), PFN_PHYS(end) - PFN_PHYS(start)); - printk("freeing pages %ld:%ld\n", start, end); - } - - /* Reserve the bootmap memory. */ - reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size, - BOOTMEM_DEFAULT); - printk("reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size)); - -#ifdef CONFIG_BLK_DEV_INITRD - initrd_start = INITRD_START; - if (initrd_start) { - initrd_end = initrd_start+INITRD_SIZE; - printk("Initial ramdisk at: 0x%p (%lu bytes)\n", - (void *) initrd_start, INITRD_SIZE); - - if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) { - if (!move_initrd(PFN_PHYS(max_low_pfn))) - printk("initrd extends beyond end of memory " - "(0x%08lx > 0x%p)\ndisabling initrd\n", - initrd_end, - phys_to_virt(PFN_PHYS(max_low_pfn))); - } else { - reserve_bootmem(virt_to_phys((void *)initrd_start), - INITRD_SIZE, BOOTMEM_DEFAULT); - } - } -#endif /* CONFIG_BLK_DEV_INITRD */ -} -#else -extern void setup_memory(void *); -#endif /* !CONFIG_DISCONTIGMEM */ - -int __init -page_is_ram(unsigned long pfn) -{ - struct memclust_struct * cluster; - struct memdesc_struct * memdesc; - unsigned long i; - - memdesc = (struct memdesc_struct *) - (hwrpb->mddt_offset + (unsigned long) hwrpb); - for_each_mem_cluster(memdesc, cluster, i) - { - if (pfn >= cluster->start_pfn && - pfn < cluster->start_pfn + cluster->numpages) { - return (cluster->usage & 3) ? 0 : 1; - } - } - - return 0; -} - -static int __init -register_cpus(void) -{ - int i; - - for_each_possible_cpu(i) { - struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) - return -ENOMEM; - register_cpu(p, i); - } - return 0; -} - -arch_initcall(register_cpus); - -void __init -setup_arch(char **cmdline_p) -{ - extern char _end[]; - - struct alpha_machine_vector *vec = NULL; - struct percpu_struct *cpu; - char *type_name, *var_name, *p; - void *kernel_end = _end; /* end of kernel */ - char *args = command_line; - - hwrpb = (struct hwrpb_struct*) __va(INIT_HWRPB->phys_addr); - boot_cpuid = hard_smp_processor_id(); - - /* - * Pre-process the system type to make sure it will be valid. - * - * This may restore real CABRIO and EB66+ family names, ie - * EB64+ and EB66. - * - * Oh, and "white box" AS800 (aka DIGITAL Server 3000 series) - * and AS1200 (DIGITAL Server 5000 series) have the type as - * the negative of the real one. - */ - if ((long)hwrpb->sys_type < 0) { - hwrpb->sys_type = -((long)hwrpb->sys_type); - hwrpb_update_checksum(hwrpb); - } - - /* Register a call for panic conditions. */ - atomic_notifier_chain_register(&panic_notifier_list, - &alpha_panic_block); - -#ifdef CONFIG_ALPHA_GENERIC - /* Assume that we've booted from SRM if we haven't booted from MILO. - Detect the later by looking for "MILO" in the system serial nr. */ - alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0; -#endif - - /* If we are using SRM, we want to allow callbacks - as early as possible, so do this NOW, and then - they should work immediately thereafter. - */ - kernel_end = callback_init(kernel_end); - - /* - * Locate the command line. - */ - /* Hack for Jensen... since we're restricted to 8 or 16 chars for - boot flags depending on the boot mode, we need some shorthand. - This should do for installation. */ - if (strcmp(COMMAND_LINE, "INSTALL") == 0) { - strlcpy(command_line, "root=/dev/fd0 load_ramdisk=1", sizeof command_line); - } else { - strlcpy(command_line, COMMAND_LINE, sizeof command_line); - } - strcpy(boot_command_line, command_line); - *cmdline_p = command_line; - - /* - * Process command-line arguments. - */ - while ((p = strsep(&args, " \t")) != NULL) { - if (!*p) continue; - if (strncmp(p, "alpha_mv=", 9) == 0) { - vec = get_sysvec_byname(p+9); - continue; - } - if (strncmp(p, "cycle=", 6) == 0) { - est_cycle_freq = simple_strtol(p+6, NULL, 0); - continue; - } - if (strncmp(p, "mem=", 4) == 0) { - mem_size_limit = get_mem_size_limit(p+4); - continue; - } - if (strncmp(p, "srmcons", 7) == 0) { - srmcons_output |= 1; - continue; - } - if (strncmp(p, "console=srm", 11) == 0) { - srmcons_output |= 2; - continue; - } - if (strncmp(p, "gartsize=", 9) == 0) { - alpha_agpgart_size = - get_mem_size_limit(p+9) << PAGE_SHIFT; - continue; - } -#ifdef CONFIG_VERBOSE_MCHECK - if (strncmp(p, "verbose_mcheck=", 15) == 0) { - alpha_verbose_mcheck = simple_strtol(p+15, NULL, 0); - continue; - } -#endif - } - - /* Replace the command line, now that we've killed it with strsep. */ - strcpy(command_line, boot_command_line); - - /* If we want SRM console printk echoing early, do it now. */ - if (alpha_using_srm && srmcons_output) { - register_srm_console(); - - /* - * If "console=srm" was specified, clear the srmcons_output - * flag now so that time.c won't unregister_srm_console - */ - if (srmcons_output & 2) - srmcons_output = 0; - } - -#ifdef CONFIG_MAGIC_SYSRQ - /* If we're using SRM, make sysrq-b halt back to the prom, - not auto-reboot. */ - if (alpha_using_srm) { - struct sysrq_key_op *op = __sysrq_get_key_op('b'); - op->handler = (void *) machine_halt; - } -#endif - - /* - * Identify and reconfigure for the current system. - */ - cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset); - - get_sysnames(hwrpb->sys_type, hwrpb->sys_variation, - cpu->type, &type_name, &var_name); - if (*var_name == '0') - var_name = ""; - - if (!vec) { - vec = get_sysvec(hwrpb->sys_type, hwrpb->sys_variation, - cpu->type); - } - - if (!vec) { - panic("Unsupported system type: %s%s%s (%ld %ld)\n", - type_name, (*var_name ? " variation " : ""), var_name, - hwrpb->sys_type, hwrpb->sys_variation); - } - if (vec != &alpha_mv) { - alpha_mv = *vec; - } - - printk("Booting " -#ifdef CONFIG_ALPHA_GENERIC - "GENERIC " -#endif - "on %s%s%s using machine vector %s from %s\n", - type_name, (*var_name ? " variation " : ""), - var_name, alpha_mv.vector_name, - (alpha_using_srm ? "SRM" : "MILO")); - - printk("Major Options: " -#ifdef CONFIG_SMP - "SMP " -#endif -#ifdef CONFIG_ALPHA_EV56 - "EV56 " -#endif -#ifdef CONFIG_ALPHA_EV67 - "EV67 " -#endif -#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS - "LEGACY_START " -#endif -#ifdef CONFIG_VERBOSE_MCHECK - "VERBOSE_MCHECK " -#endif - -#ifdef CONFIG_DISCONTIGMEM - "DISCONTIGMEM " -#ifdef CONFIG_NUMA - "NUMA " -#endif -#endif - -#ifdef CONFIG_DEBUG_SPINLOCK - "DEBUG_SPINLOCK " -#endif -#ifdef CONFIG_MAGIC_SYSRQ - "MAGIC_SYSRQ " -#endif - "\n"); - - printk("Command line: %s\n", command_line); - - /* - * Sync up the HAE. - * Save the SRM's current value for restoration. - */ - srm_hae = *alpha_mv.hae_register; - __set_hae(alpha_mv.hae_cache); - - /* Reset enable correctable error reports. */ - wrmces(0x7); - - /* Find our memory. */ - setup_memory(kernel_end); - - /* First guess at cpu cache sizes. Do this before init_arch. */ - determine_cpu_caches(cpu->type); - - /* Initialize the machine. Usually has to do with setting up - DMA windows and the like. */ - if (alpha_mv.init_arch) - alpha_mv.init_arch(); - - /* Reserve standard resources. */ - reserve_std_resources(); - - /* - * Give us a default console. TGA users will see nothing until - * chr_dev_init is called, rather late in the boot sequence. - */ - -#ifdef CONFIG_VT -#if defined(CONFIG_VGA_CONSOLE) - conswitchp = &vga_con; -#elif defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif -#endif - - /* Default root filesystem to sda2. */ - ROOT_DEV = Root_SDA2; - -#ifdef CONFIG_EISA - /* FIXME: only set this when we actually have EISA in this box? */ - EISA_bus = 1; -#endif - - /* - * Check ASN in HWRPB for validity, report if bad. - * FIXME: how was this failing? Should we trust it instead, - * and copy the value into alpha_mv.max_asn? - */ - - if (hwrpb->max_asn != MAX_ASN) { - printk("Max ASN from HWRPB is bad (0x%lx)\n", hwrpb->max_asn); - } - - /* - * Identify the flock of penguins. - */ - -#ifdef CONFIG_SMP - setup_smp(); -#endif - paging_init(); -} - -static char sys_unknown[] = "Unknown"; -static char systype_names[][16] = { - "0", - "ADU", "Cobra", "Ruby", "Flamingo", "Mannequin", "Jensen", - "Pelican", "Morgan", "Sable", "Medulla", "Noname", - "Turbolaser", "Avanti", "Mustang", "Alcor", "Tradewind", - "Mikasa", "EB64", "EB66", "EB64+", "AlphaBook1", - "Rawhide", "K2", "Lynx", "XL", "EB164", "Noritake", - "Cortex", "29", "Miata", "XXM", "Takara", "Yukon", - "Tsunami", "Wildfire", "CUSCO", "Eiger", "Titan", "Marvel" -}; - -static char unofficial_names[][8] = {"100", "Ruffian"}; - -static char api_names[][16] = {"200", "Nautilus"}; - -static char eb164_names[][8] = {"EB164", "PC164", "LX164", "SX164", "RX164"}; -static int eb164_indices[] = {0,0,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4}; - -static char alcor_names[][16] = {"Alcor", "Maverick", "Bret"}; -static int alcor_indices[] = {0,0,0,1,1,1,0,0,0,0,0,0,2,2,2,2,2,2}; - -static char eb64p_names[][16] = {"EB64+", "Cabriolet", "AlphaPCI64"}; -static int eb64p_indices[] = {0,0,1,2}; - -static char eb66_names[][8] = {"EB66", "EB66+"}; -static int eb66_indices[] = {0,0,1}; - -static char marvel_names[][16] = { - "Marvel/EV7" -}; -static int marvel_indices[] = { 0 }; - -static char rawhide_names[][16] = { - "Dodge", "Wrangler", "Durango", "Tincup", "DaVinci" -}; -static int rawhide_indices[] = {0,0,0,1,1,2,2,3,3,4,4}; - -static char titan_names[][16] = { - "DEFAULT", "Privateer", "Falcon", "Granite" -}; -static int titan_indices[] = {0,1,2,2,3}; - -static char tsunami_names[][16] = { - "0", "DP264", "Warhol", "Windjammer", "Monet", "Clipper", - "Goldrush", "Webbrick", "Catamaran", "Brisbane", "Melbourne", - "Flying Clipper", "Shark" -}; -static int tsunami_indices[] = {0,1,2,3,4,5,6,7,8,9,10,11,12}; - -static struct alpha_machine_vector * __init -get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu) -{ - static struct alpha_machine_vector *systype_vecs[] __initdata = - { - NULL, /* 0 */ - NULL, /* ADU */ - NULL, /* Cobra */ - NULL, /* Ruby */ - NULL, /* Flamingo */ - NULL, /* Mannequin */ - &jensen_mv, - NULL, /* Pelican */ - NULL, /* Morgan */ - NULL, /* Sable -- see below. */ - NULL, /* Medulla */ - &noname_mv, - NULL, /* Turbolaser */ - &avanti_mv, - NULL, /* Mustang */ - NULL, /* Alcor, Bret, Maverick. HWRPB inaccurate? */ - NULL, /* Tradewind */ - NULL, /* Mikasa -- see below. */ - NULL, /* EB64 */ - NULL, /* EB66 -- see variation. */ - NULL, /* EB64+ -- see variation. */ - &alphabook1_mv, - &rawhide_mv, - NULL, /* K2 */ - &lynx_mv, /* Lynx */ - &xl_mv, - NULL, /* EB164 -- see variation. */ - NULL, /* Noritake -- see below. */ - NULL, /* Cortex */ - NULL, /* 29 */ - &miata_mv, - NULL, /* XXM */ - &takara_mv, - NULL, /* Yukon */ - NULL, /* Tsunami -- see variation. */ - &wildfire_mv, /* Wildfire */ - NULL, /* CUSCO */ - &eiger_mv, /* Eiger */ - NULL, /* Titan */ - NULL, /* Marvel */ - }; - - static struct alpha_machine_vector *unofficial_vecs[] __initdata = - { - NULL, /* 100 */ - &ruffian_mv, - }; - - static struct alpha_machine_vector *api_vecs[] __initdata = - { - NULL, /* 200 */ - &nautilus_mv, - }; - - static struct alpha_machine_vector *alcor_vecs[] __initdata = - { - &alcor_mv, &xlt_mv, &xlt_mv - }; - - static struct alpha_machine_vector *eb164_vecs[] __initdata = - { - &eb164_mv, &pc164_mv, &lx164_mv, &sx164_mv, &rx164_mv - }; - - static struct alpha_machine_vector *eb64p_vecs[] __initdata = - { - &eb64p_mv, - &cabriolet_mv, - &cabriolet_mv /* AlphaPCI64 */ - }; - - static struct alpha_machine_vector *eb66_vecs[] __initdata = - { - &eb66_mv, - &eb66p_mv - }; - - static struct alpha_machine_vector *marvel_vecs[] __initdata = - { - &marvel_ev7_mv, - }; - - static struct alpha_machine_vector *titan_vecs[] __initdata = - { - &titan_mv, /* default */ - &privateer_mv, /* privateer */ - &titan_mv, /* falcon */ - &privateer_mv, /* granite */ - }; - - static struct alpha_machine_vector *tsunami_vecs[] __initdata = - { - NULL, - &dp264_mv, /* dp264 */ - &dp264_mv, /* warhol */ - &dp264_mv, /* windjammer */ - &monet_mv, /* monet */ - &clipper_mv, /* clipper */ - &dp264_mv, /* goldrush */ - &webbrick_mv, /* webbrick */ - &dp264_mv, /* catamaran */ - NULL, /* brisbane? */ - NULL, /* melbourne? */ - NULL, /* flying clipper? */ - &shark_mv, /* shark */ - }; - - /* ??? Do we need to distinguish between Rawhides? */ - - struct alpha_machine_vector *vec; - - /* Search the system tables first... */ - vec = NULL; - if (type < ARRAY_SIZE(systype_vecs)) { - vec = systype_vecs[type]; - } else if ((type > ST_API_BIAS) && - (type - ST_API_BIAS) < ARRAY_SIZE(api_vecs)) { - vec = api_vecs[type - ST_API_BIAS]; - } else if ((type > ST_UNOFFICIAL_BIAS) && - (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_vecs)) { - vec = unofficial_vecs[type - ST_UNOFFICIAL_BIAS]; - } - - /* If we've not found one, try for a variation. */ - - if (!vec) { - /* Member ID is a bit-field. */ - unsigned long member = (variation >> 10) & 0x3f; - - cpu &= 0xffffffff; /* make it usable */ - - switch (type) { - case ST_DEC_ALCOR: - if (member < ARRAY_SIZE(alcor_indices)) - vec = alcor_vecs[alcor_indices[member]]; - break; - case ST_DEC_EB164: - if (member < ARRAY_SIZE(eb164_indices)) - vec = eb164_vecs[eb164_indices[member]]; - /* PC164 may show as EB164 variation with EV56 CPU, - but, since no true EB164 had anything but EV5... */ - if (vec == &eb164_mv && cpu == EV56_CPU) - vec = &pc164_mv; - break; - case ST_DEC_EB64P: - if (member < ARRAY_SIZE(eb64p_indices)) - vec = eb64p_vecs[eb64p_indices[member]]; - break; - case ST_DEC_EB66: - if (member < ARRAY_SIZE(eb66_indices)) - vec = eb66_vecs[eb66_indices[member]]; - break; - case ST_DEC_MARVEL: - if (member < ARRAY_SIZE(marvel_indices)) - vec = marvel_vecs[marvel_indices[member]]; - break; - case ST_DEC_TITAN: - vec = titan_vecs[0]; /* default */ - if (member < ARRAY_SIZE(titan_indices)) - vec = titan_vecs[titan_indices[member]]; - break; - case ST_DEC_TSUNAMI: - if (member < ARRAY_SIZE(tsunami_indices)) - vec = tsunami_vecs[tsunami_indices[member]]; - break; - case ST_DEC_1000: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &mikasa_primo_mv; - else - vec = &mikasa_mv; - break; - case ST_DEC_NORITAKE: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &noritake_primo_mv; - else - vec = &noritake_mv; - break; - case ST_DEC_2100_A500: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &sable_gamma_mv; - else - vec = &sable_mv; - break; - } - } - return vec; -} - -static struct alpha_machine_vector * __init -get_sysvec_byname(const char *name) -{ - static struct alpha_machine_vector *all_vecs[] __initdata = - { - &alcor_mv, - &alphabook1_mv, - &avanti_mv, - &cabriolet_mv, - &clipper_mv, - &dp264_mv, - &eb164_mv, - &eb64p_mv, - &eb66_mv, - &eb66p_mv, - &eiger_mv, - &jensen_mv, - &lx164_mv, - &lynx_mv, - &miata_mv, - &mikasa_mv, - &mikasa_primo_mv, - &monet_mv, - &nautilus_mv, - &noname_mv, - &noritake_mv, - &noritake_primo_mv, - &p2k_mv, - &pc164_mv, - &privateer_mv, - &rawhide_mv, - &ruffian_mv, - &rx164_mv, - &sable_mv, - &sable_gamma_mv, - &shark_mv, - &sx164_mv, - &takara_mv, - &webbrick_mv, - &wildfire_mv, - &xl_mv, - &xlt_mv - }; - - size_t i; - - for (i = 0; i < ARRAY_SIZE(all_vecs); ++i) { - struct alpha_machine_vector *mv = all_vecs[i]; - if (strcasecmp(mv->vector_name, name) == 0) - return mv; - } - return NULL; -} - -static void -get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu, - char **type_name, char **variation_name) -{ - unsigned long member; - - /* If not in the tables, make it UNKNOWN, - else set type name to family */ - if (type < ARRAY_SIZE(systype_names)) { - *type_name = systype_names[type]; - } else if ((type > ST_API_BIAS) && - (type - ST_API_BIAS) < ARRAY_SIZE(api_names)) { - *type_name = api_names[type - ST_API_BIAS]; - } else if ((type > ST_UNOFFICIAL_BIAS) && - (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_names)) { - *type_name = unofficial_names[type - ST_UNOFFICIAL_BIAS]; - } else { - *type_name = sys_unknown; - *variation_name = sys_unknown; - return; - } - - /* Set variation to "0"; if variation is zero, done. */ - *variation_name = systype_names[0]; - if (variation == 0) { - return; - } - - member = (variation >> 10) & 0x3f; /* member ID is a bit-field */ - - cpu &= 0xffffffff; /* make it usable */ - - switch (type) { /* select by family */ - default: /* default to variation "0" for now */ - break; - case ST_DEC_EB164: - if (member < ARRAY_SIZE(eb164_indices)) - *variation_name = eb164_names[eb164_indices[member]]; - /* PC164 may show as EB164 variation, but with EV56 CPU, - so, since no true EB164 had anything but EV5... */ - if (eb164_indices[member] == 0 && cpu == EV56_CPU) - *variation_name = eb164_names[1]; /* make it PC164 */ - break; - case ST_DEC_ALCOR: - if (member < ARRAY_SIZE(alcor_indices)) - *variation_name = alcor_names[alcor_indices[member]]; - break; - case ST_DEC_EB64P: - if (member < ARRAY_SIZE(eb64p_indices)) - *variation_name = eb64p_names[eb64p_indices[member]]; - break; - case ST_DEC_EB66: - if (member < ARRAY_SIZE(eb66_indices)) - *variation_name = eb66_names[eb66_indices[member]]; - break; - case ST_DEC_MARVEL: - if (member < ARRAY_SIZE(marvel_indices)) - *variation_name = marvel_names[marvel_indices[member]]; - break; - case ST_DEC_RAWHIDE: - if (member < ARRAY_SIZE(rawhide_indices)) - *variation_name = rawhide_names[rawhide_indices[member]]; - break; - case ST_DEC_TITAN: - *variation_name = titan_names[0]; /* default */ - if (member < ARRAY_SIZE(titan_indices)) - *variation_name = titan_names[titan_indices[member]]; - break; - case ST_DEC_TSUNAMI: - if (member < ARRAY_SIZE(tsunami_indices)) - *variation_name = tsunami_names[tsunami_indices[member]]; - break; - } -} - -/* - * A change was made to the HWRPB via an ECO and the following code - * tracks a part of the ECO. In HWRPB versions less than 5, the ECO - * was not implemented in the console firmware. If it's revision 5 or - * greater we can get the name of the platform as an ASCII string from - * the HWRPB. That's what this function does. It checks the revision - * level and if the string is in the HWRPB it returns the address of - * the string--a pointer to the name of the platform. - * - * Returns: - * - Pointer to a ASCII string if it's in the HWRPB - * - Pointer to a blank string if the data is not in the HWRPB. - */ - -static char * -platform_string(void) -{ - struct dsr_struct *dsr; - static char unk_system_string[] = "N/A"; - - /* Go to the console for the string pointer. - * If the rpb_vers is not 5 or greater the rpb - * is old and does not have this data in it. - */ - if (hwrpb->revision < 5) - return (unk_system_string); - else { - /* The Dynamic System Recognition struct - * has the system platform name starting - * after the character count of the string. - */ - dsr = ((struct dsr_struct *) - ((char *)hwrpb + hwrpb->dsr_offset)); - return ((char *)dsr + (dsr->sysname_off + - sizeof(long))); - } -} - -static int -get_nr_processors(struct percpu_struct *cpubase, unsigned long num) -{ - struct percpu_struct *cpu; - unsigned long i; - int count = 0; - - for (i = 0; i < num; i++) { - cpu = (struct percpu_struct *) - ((char *)cpubase + i*hwrpb->processor_size); - if ((cpu->flags & 0x1cc) == 0x1cc) - count++; - } - return count; -} - -static void -show_cache_size (struct seq_file *f, const char *which, int shape) -{ - if (shape == -1) - seq_printf (f, "%s\t\t: n/a\n", which); - else if (shape == 0) - seq_printf (f, "%s\t\t: unknown\n", which); - else - seq_printf (f, "%s\t\t: %dK, %d-way, %db line\n", - which, shape >> 10, shape & 15, - 1 << ((shape >> 4) & 15)); -} - -static int -show_cpuinfo(struct seq_file *f, void *slot) -{ - extern struct unaligned_stat { - unsigned long count, va, pc; - } unaligned[2]; - - static char cpu_names[][8] = { - "EV3", "EV4", "Simulate", "LCA4", "EV5", "EV45", "EV56", - "EV6", "PCA56", "PCA57", "EV67", "EV68CB", "EV68AL", - "EV68CX", "EV7", "EV79", "EV69" - }; - - struct percpu_struct *cpu = slot; - unsigned int cpu_index; - char *cpu_name; - char *systype_name; - char *sysvariation_name; - int nr_processors; - - cpu_index = (unsigned) (cpu->type - 1); - cpu_name = "Unknown"; - if (cpu_index < ARRAY_SIZE(cpu_names)) - cpu_name = cpu_names[cpu_index]; - - get_sysnames(hwrpb->sys_type, hwrpb->sys_variation, - cpu->type, &systype_name, &sysvariation_name); - - nr_processors = get_nr_processors(cpu, hwrpb->nr_processors); - - seq_printf(f, "cpu\t\t\t: Alpha\n" - "cpu model\t\t: %s\n" - "cpu variation\t\t: %ld\n" - "cpu revision\t\t: %ld\n" - "cpu serial number\t: %s\n" - "system type\t\t: %s\n" - "system variation\t: %s\n" - "system revision\t\t: %ld\n" - "system serial number\t: %s\n" - "cycle frequency [Hz]\t: %lu %s\n" - "timer frequency [Hz]\t: %lu.%02lu\n" - "page size [bytes]\t: %ld\n" - "phys. address bits\t: %ld\n" - "max. addr. space #\t: %ld\n" - "BogoMIPS\t\t: %lu.%02lu\n" - "kernel unaligned acc\t: %ld (pc=%lx,va=%lx)\n" - "user unaligned acc\t: %ld (pc=%lx,va=%lx)\n" - "platform string\t\t: %s\n" - "cpus detected\t\t: %d\n", - cpu_name, cpu->variation, cpu->revision, - (char*)cpu->serial_no, - systype_name, sysvariation_name, hwrpb->sys_revision, - (char*)hwrpb->ssn, - est_cycle_freq ? : hwrpb->cycle_freq, - est_cycle_freq ? "est." : "", - hwrpb->intr_freq / 4096, - (100 * hwrpb->intr_freq / 4096) % 100, - hwrpb->pagesize, - hwrpb->pa_bits, - hwrpb->max_asn, - loops_per_jiffy / (500000/HZ), - (loops_per_jiffy / (5000/HZ)) % 100, - unaligned[0].count, unaligned[0].pc, unaligned[0].va, - unaligned[1].count, unaligned[1].pc, unaligned[1].va, - platform_string(), nr_processors); - -#ifdef CONFIG_SMP - seq_printf(f, "cpus active\t\t: %u\n" - "cpu active mask\t\t: %016lx\n", - num_online_cpus(), cpumask_bits(cpu_possible_mask)[0]); -#endif - - show_cache_size (f, "L1 Icache", alpha_l1i_cacheshape); - show_cache_size (f, "L1 Dcache", alpha_l1d_cacheshape); - show_cache_size (f, "L2 cache", alpha_l2_cacheshape); - show_cache_size (f, "L3 cache", alpha_l3_cacheshape); - - return 0; -} - -static int __init -read_mem_block(int *addr, int stride, int size) -{ - long nloads = size / stride, cnt, tmp; - - __asm__ __volatile__( - " rpcc %0\n" - "1: ldl %3,0(%2)\n" - " subq %1,1,%1\n" - /* Next two XORs introduce an explicit data dependency between - consecutive loads in the loop, which will give us true load - latency. */ - " xor %3,%2,%2\n" - " xor %3,%2,%2\n" - " addq %2,%4,%2\n" - " bne %1,1b\n" - " rpcc %3\n" - " subl %3,%0,%0\n" - : "=&r" (cnt), "=&r" (nloads), "=&r" (addr), "=&r" (tmp) - : "r" (stride), "1" (nloads), "2" (addr)); - - return cnt / (size / stride); -} - -#define CSHAPE(totalsize, linesize, assoc) \ - ((totalsize & ~0xff) | (linesize << 4) | assoc) - -/* ??? EV5 supports up to 64M, but did the systems with more than - 16M of BCACHE ever exist? */ -#define MAX_BCACHE_SIZE 16*1024*1024 - -/* Note that the offchip caches are direct mapped on all Alphas. */ -static int __init -external_cache_probe(int minsize, int width) -{ - int cycles, prev_cycles = 1000000; - int stride = 1 << width; - long size = minsize, maxsize = MAX_BCACHE_SIZE * 2; - - if (maxsize > (max_low_pfn + 1) << PAGE_SHIFT) - maxsize = 1 << (ilog2(max_low_pfn + 1) + PAGE_SHIFT); - - /* Get the first block cached. */ - read_mem_block(__va(0), stride, size); - - while (size < maxsize) { - /* Get an average load latency in cycles. */ - cycles = read_mem_block(__va(0), stride, size); - if (cycles > prev_cycles * 2) { - /* Fine, we exceed the cache. */ - printk("%ldK Bcache detected; load hit latency %d " - "cycles, load miss latency %d cycles\n", - size >> 11, prev_cycles, cycles); - return CSHAPE(size >> 1, width, 1); - } - /* Try to get the next block cached. */ - read_mem_block(__va(size), stride, size); - prev_cycles = cycles; - size <<= 1; - } - return -1; /* No BCACHE found. */ -} - -static void __init -determine_cpu_caches (unsigned int cpu_type) -{ - int L1I, L1D, L2, L3; - - switch (cpu_type) { - case EV4_CPU: - case EV45_CPU: - { - if (cpu_type == EV4_CPU) - L1I = CSHAPE(8*1024, 5, 1); - else - L1I = CSHAPE(16*1024, 5, 1); - L1D = L1I; - L3 = -1; - - /* BIU_CTL is a write-only Abox register. PALcode has a - shadow copy, and may be available from some versions - of the CSERVE PALcall. If we can get it, then - - unsigned long biu_ctl, size; - size = 128*1024 * (1 << ((biu_ctl >> 28) & 7)); - L2 = CSHAPE (size, 5, 1); - - Unfortunately, we can't rely on that. - */ - L2 = external_cache_probe(128*1024, 5); - break; - } - - case LCA4_CPU: - { - unsigned long car, size; - - L1I = L1D = CSHAPE(8*1024, 5, 1); - L3 = -1; - - car = *(vuip) phys_to_virt (0x120000078UL); - size = 64*1024 * (1 << ((car >> 5) & 7)); - /* No typo -- 8 byte cacheline size. Whodathunk. */ - L2 = (car & 1 ? CSHAPE (size, 3, 1) : -1); - break; - } - - case EV5_CPU: - case EV56_CPU: - { - unsigned long sc_ctl, width; - - L1I = L1D = CSHAPE(8*1024, 5, 1); - - /* Check the line size of the Scache. */ - sc_ctl = *(vulp) phys_to_virt (0xfffff000a8UL); - width = sc_ctl & 0x1000 ? 6 : 5; - L2 = CSHAPE (96*1024, width, 3); - - /* BC_CONTROL and BC_CONFIG are write-only IPRs. PALcode - has a shadow copy, and may be available from some versions - of the CSERVE PALcall. If we can get it, then - - unsigned long bc_control, bc_config, size; - size = 1024*1024 * (1 << ((bc_config & 7) - 1)); - L3 = (bc_control & 1 ? CSHAPE (size, width, 1) : -1); - - Unfortunately, we can't rely on that. - */ - L3 = external_cache_probe(1024*1024, width); - break; - } - - case PCA56_CPU: - case PCA57_CPU: - { - if (cpu_type == PCA56_CPU) { - L1I = CSHAPE(16*1024, 6, 1); - L1D = CSHAPE(8*1024, 5, 1); - } else { - L1I = CSHAPE(32*1024, 6, 2); - L1D = CSHAPE(16*1024, 5, 1); - } - L3 = -1; - -#if 0 - unsigned long cbox_config, size; - - cbox_config = *(vulp) phys_to_virt (0xfffff00008UL); - size = 512*1024 * (1 << ((cbox_config >> 12) & 3)); - - L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1); -#else - L2 = external_cache_probe(512*1024, 6); -#endif - break; - } - - case EV6_CPU: - case EV67_CPU: - case EV68CB_CPU: - case EV68AL_CPU: - case EV68CX_CPU: - case EV69_CPU: - L1I = L1D = CSHAPE(64*1024, 6, 2); - L2 = external_cache_probe(1024*1024, 6); - L3 = -1; - break; - - case EV7_CPU: - case EV79_CPU: - L1I = L1D = CSHAPE(64*1024, 6, 2); - L2 = CSHAPE(7*1024*1024/4, 6, 7); - L3 = -1; - break; - - default: - /* Nothing known about this cpu type. */ - L1I = L1D = L2 = L3 = 0; - break; - } - - alpha_l1i_cacheshape = L1I; - alpha_l1d_cacheshape = L1D; - alpha_l2_cacheshape = L2; - alpha_l3_cacheshape = L3; -} - -/* - * We show only CPU #0 info. - */ -static void * -c_start(struct seq_file *f, loff_t *pos) -{ - return *pos ? NULL : (char *)hwrpb + hwrpb->processor_offset; -} - -static void * -c_next(struct seq_file *f, void *v, loff_t *pos) -{ - return NULL; -} - -static void -c_stop(struct seq_file *f, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; - - -static int -alpha_panic_event(struct notifier_block *this, unsigned long event, void *ptr) -{ -#if 1 - /* FIXME FIXME FIXME */ - /* If we are using SRM and serial console, just hard halt here. */ - if (alpha_using_srm && srmcons_output) - __halt(); -#endif - return NOTIFY_DONE; -} - -static __init int add_pcspkr(void) -{ - struct platform_device *pd; - int ret; - - pd = platform_device_alloc("pcspkr", -1); - if (!pd) - return -ENOMEM; - - ret = platform_device_add(pd); - if (ret) - platform_device_put(pd); - - return ret; -} -device_initcall(add_pcspkr); |