-/* $Id: setup.c,v 1.30 2003/10/13 07:21:19 lethal Exp $
+/*
+ * arch/sh/kernel/setup.c
*
- * linux/arch/sh/kernel/setup.c
+ * This file handles the architecture-dependent parts of initialization
*
* Copyright (C) 1999 Niibe Yutaka
- * Copyright (C) 2002, 2003 Paul Mundt
+ * Copyright (C) 2002 - 2007 Paul Mundt
*/
-
-/*
- * This file handles the architecture-dependent parts of initialization
- */
-
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/initrd.h>
#include <linux/seq_file.h>
#include <linux/root_dev.h>
#include <linux/utsname.h>
+#include <linux/nodemask.h>
#include <linux/cpu.h>
#include <linux/pfn.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/kexec.h>
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
+#include <linux/crash_dump.h>
#include <asm/uaccess.h>
#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/elf.h>
#include <asm/sections.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/clock.h>
-
-#ifdef CONFIG_SH_KGDB
-#include <asm/kgdb.h>
-static int kgdb_parse_options(char *options);
-#endif
-extern void * __rd_start, * __rd_end;
-/*
- * Machine setup..
- */
+#include <asm/mmu_context.h>
/*
* Initialize loops_per_jiffy as 10000000 (1000MIPS).
* This value will be used at the very early stage of serial setup.
* The bigger value means no problem.
*/
-struct sh_cpuinfo boot_cpu_data = { CPU_SH_NONE, 10000000, };
-struct screen_info screen_info;
-
-#if defined(CONFIG_SH_UNKNOWN)
-struct sh_machine_vector sh_mv;
-#endif
-
-/* We need this to satisfy some external references. */
-struct screen_info screen_info = {
- 0, 25, /* orig-x, orig-y */
- 0, /* unused */
- 0, /* orig-video-page */
- 0, /* orig-video-mode */
- 80, /* orig-video-cols */
- 0,0,0, /* ega_ax, ega_bx, ega_cx */
- 25, /* orig-video-lines */
- 0, /* orig-video-isVGA */
- 16 /* orig-video-points */
+struct sh_cpuinfo cpu_data[NR_CPUS] __read_mostly = {
+ [0] = {
+ .type = CPU_SH_NONE,
+ .loops_per_jiffy = 10000000,
+ },
};
-
-extern void platform_setup(void);
-extern char *get_system_type(void);
-extern int root_mountflags;
-
-#define MV_NAME_SIZE 32
-
-static struct sh_machine_vector* __init get_mv_byname(const char* name);
+EXPORT_SYMBOL(cpu_data);
/*
- * This is set up by the setup-routine at boot-time
+ * The machine vector. First entry in .machvec.init, or clobbered by
+ * sh_mv= on the command line, prior to .machvec.init teardown.
*/
-#define PARAM ((unsigned char *)empty_zero_page)
+struct sh_machine_vector sh_mv = { .mv_name = "generic", };
+EXPORT_SYMBOL(sh_mv);
-#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
-#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
-#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
-#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
-#define INITRD_START (*(unsigned long *) (PARAM+0x010))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
-/* ... */
-#define COMMAND_LINE ((char *) (PARAM+0x100))
+#ifdef CONFIG_VT
+struct screen_info screen_info;
+#endif
+
+extern int root_mountflags;
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
-static char command_line[COMMAND_LINE_SIZE] = { 0, };
-
-struct resource standard_io_resources[] = {
- { "dma1", 0x00, 0x1f },
- { "pic1", 0x20, 0x3f },
- { "timer", 0x40, 0x5f },
- { "keyboard", 0x60, 0x6f },
- { "dma page reg", 0x80, 0x8f },
- { "pic2", 0xa0, 0xbf },
- { "dma2", 0xc0, 0xdf },
- { "fpu", 0xf0, 0xff }
+static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
+
+static struct resource code_resource = {
+ .name = "Kernel code",
+ .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
};
-#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
-
-/* System RAM - interrupted by the 640kB-1M hole */
-#define code_resource (ram_resources[3])
-#define data_resource (ram_resources[4])
-static struct resource ram_resources[] = {
- { "System RAM", 0x000000, 0x09ffff, IORESOURCE_BUSY },
- { "System RAM", 0x100000, 0x100000, IORESOURCE_BUSY },
- { "Video RAM area", 0x0a0000, 0x0bffff },
- { "Kernel code", 0x100000, 0 },
- { "Kernel data", 0, 0 }
+static struct resource data_resource = {
+ .name = "Kernel data",
+ .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
};
-unsigned long memory_start, memory_end;
+static struct resource bss_resource = {
+ .name = "Kernel bss",
+ .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
-static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
- struct sh_machine_vector** mvp,
- unsigned long *mv_io_base,
- int *mv_mmio_enable)
-{
- char c = ' ', *to = command_line, *from = COMMAND_LINE;
- int len = 0;
+unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+unsigned long memory_end = 0;
+EXPORT_SYMBOL(memory_end);
- /* Save unparsed command line copy for /proc/cmdline */
- memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
- saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
-
- memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
- memory_end = memory_start + __MEMORY_SIZE;
-
- for (;;) {
- /*
- * "mem=XXX[kKmM]" defines a size of memory.
- */
- if (c == ' ' && !memcmp(from, "mem=", 4)) {
- if (to != command_line)
- to--;
- {
- unsigned long mem_size;
-
- mem_size = memparse(from+4, &from);
- memory_end = memory_start + mem_size;
- }
- }
- if (c == ' ' && !memcmp(from, "sh_mv=", 6)) {
- char* mv_end;
- char* mv_comma;
- int mv_len;
- if (to != command_line)
- to--;
- from += 6;
- mv_end = strchr(from, ' ');
- if (mv_end == NULL)
- mv_end = from + strlen(from);
-
- mv_comma = strchr(from, ',');
- if ((mv_comma != NULL) && (mv_comma < mv_end)) {
- int ints[3];
- get_options(mv_comma+1, ARRAY_SIZE(ints), ints);
- *mv_io_base = ints[1];
- *mv_mmio_enable = ints[2];
- mv_len = mv_comma - from;
- } else {
- mv_len = mv_end - from;
- }
- if (mv_len > (MV_NAME_SIZE-1))
- mv_len = MV_NAME_SIZE-1;
- memcpy(mv_name, from, mv_len);
- mv_name[mv_len] = '\0';
- from = mv_end;
-
- *mvp = get_mv_byname(mv_name);
- }
- c = *(from++);
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *(to++) = c;
- }
- *to = '\0';
- *cmdline_p = command_line;
-}
+static struct resource mem_resources[MAX_NUMNODES];
+
+int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
-static int __init sh_mv_setup(char **cmdline_p)
+static int __init early_parse_mem(char *p)
{
-#ifdef CONFIG_SH_UNKNOWN
- extern struct sh_machine_vector mv_unknown;
-#endif
- struct sh_machine_vector *mv = NULL;
- char mv_name[MV_NAME_SIZE] = "";
- unsigned long mv_io_base = 0;
- int mv_mmio_enable = 0;
-
- parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base, &mv_mmio_enable);
-
-#ifdef CONFIG_SH_UNKNOWN
- if (mv == NULL) {
- mv = &mv_unknown;
- if (*mv_name != '\0') {
- printk("Warning: Unsupported machine %s, using unknown\n",
- mv_name);
- }
+ unsigned long size;
+
+ memory_start = (unsigned long)__va(__MEMORY_START);
+ size = memparse(p, &p);
+
+ if (size > __MEMORY_SIZE) {
+ static char msg[] __initdata = KERN_ERR
+ "Using mem= to increase the size of kernel memory "
+ "is not allowed.\n"
+ " Recompile the kernel with the correct value for "
+ "CONFIG_MEMORY_SIZE.\n";
+ printk(msg);
+ return 0;
}
- sh_mv = *mv;
-#endif
- /*
- * Manually walk the vec, fill in anything that the board hasn't yet
- * by hand, wrapping to the generic implementation.
- */
-#define mv_set(elem) do { \
- if (!sh_mv.mv_##elem) \
- sh_mv.mv_##elem = generic_##elem; \
-} while (0)
+ memory_end = memory_start + size;
- mv_set(inb); mv_set(inw); mv_set(inl);
- mv_set(outb); mv_set(outw); mv_set(outl);
+ return 0;
+}
+early_param("mem", early_parse_mem);
- mv_set(inb_p); mv_set(inw_p); mv_set(inl_p);
- mv_set(outb_p); mv_set(outw_p); mv_set(outl_p);
+/*
+ * Register fully available low RAM pages with the bootmem allocator.
+ */
+static void __init register_bootmem_low_pages(void)
+{
+ unsigned long curr_pfn, last_pfn, pages;
- mv_set(insb); mv_set(insw); mv_set(insl);
- mv_set(outsb); mv_set(outsw); mv_set(outsl);
+ /*
+ * We are rounding up the start address of usable memory:
+ */
+ curr_pfn = PFN_UP(__MEMORY_START);
- mv_set(readb); mv_set(readw); mv_set(readl);
- mv_set(writeb); mv_set(writew); mv_set(writel);
+ /*
+ * ... and at the end of the usable range downwards:
+ */
+ last_pfn = PFN_DOWN(__pa(memory_end));
- mv_set(ioport_map);
- mv_set(ioport_unmap);
- mv_set(irq_demux);
+ if (last_pfn > max_low_pfn)
+ last_pfn = max_low_pfn;
-#ifdef CONFIG_SH_UNKNOWN
- __set_io_port_base(mv_io_base);
-#endif
-
- return 0;
+ pages = last_pfn - curr_pfn;
+ free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
}
-void __init setup_arch(char **cmdline_p)
+#ifdef CONFIG_KEXEC
+static void __init reserve_crashkernel(void)
{
- unsigned long bootmap_size;
- unsigned long start_pfn, max_pfn, max_low_pfn;
-
-#ifdef CONFIG_EARLY_PRINTK
- extern void enable_early_printk(void);
-
- enable_early_printk();
-#endif
-#ifdef CONFIG_CMDLINE_BOOL
- strcpy(COMMAND_LINE, CONFIG_CMDLINE);
-#endif
+ unsigned long long free_mem;
+ unsigned long long crash_size, crash_base;
+ int ret;
+
+ free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
+
+ ret = parse_crashkernel(boot_command_line, free_mem,
+ &crash_size, &crash_base);
+ if (ret == 0 && crash_size) {
+ if (crash_base <= 0) {
+ printk(KERN_INFO "crashkernel reservation failed - "
+ "you have to specify a base address\n");
+ return;
+ }
- ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
+ if (reserve_bootmem(crash_base, crash_size,
+ BOOTMEM_EXCLUSIVE) < 0) {
+ printk(KERN_INFO "crashkernel reservation failed - "
+ "memory is in use\n");
+ return;
+ }
-#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+ printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+ "for crashkernel (System RAM: %ldMB)\n",
+ (unsigned long)(crash_size >> 20),
+ (unsigned long)(crash_base >> 20),
+ (unsigned long)(free_mem >> 20));
+ crashk_res.start = crash_base;
+ crashk_res.end = crash_base + crash_size - 1;
+ insert_resource(&iomem_resource, &crashk_res);
+ }
+}
+#else
+static inline void __init reserve_crashkernel(void)
+{}
#endif
- if (!MOUNT_ROOT_RDONLY)
- root_mountflags &= ~MS_RDONLY;
- init_mm.start_code = (unsigned long) _text;
- init_mm.end_code = (unsigned long) _etext;
- init_mm.end_data = (unsigned long) _edata;
- init_mm.brk = (unsigned long) _end;
+void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
+ unsigned long end_pfn)
+{
+ struct resource *res = &mem_resources[nid];
- code_resource.start = (unsigned long)virt_to_phys(_text);
- code_resource.end = (unsigned long)virt_to_phys(_etext)-1;
- data_resource.start = (unsigned long)virt_to_phys(_etext);
- data_resource.end = (unsigned long)virt_to_phys(_edata)-1;
+ WARN_ON(res->name); /* max one active range per node for now */
- sh_mv_setup(cmdline_p);
+ res->name = "System RAM";
+ res->start = start_pfn << PAGE_SHIFT;
+ res->end = (end_pfn << PAGE_SHIFT) - 1;
+ res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (request_resource(&iomem_resource, res)) {
+ pr_err("unable to request memory_resource 0x%lx 0x%lx\n",
+ start_pfn, end_pfn);
+ return;
+ }
/*
- * Find the highest page frame number we have available
+ * We don't know which RAM region contains kernel data,
+ * so we try it repeatedly and let the resource manager
+ * test it.
*/
- max_pfn = PFN_DOWN(__pa(memory_end));
+ request_resource(res, &code_resource);
+ request_resource(res, &data_resource);
+ request_resource(res, &bss_resource);
- /*
- * Determine low and high memory ranges:
- */
- max_low_pfn = max_pfn;
+ add_active_range(nid, start_pfn, end_pfn);
+}
- /*
- * Partially used pages are not usable - thus
- * we are rounding upwards:
- */
- start_pfn = PFN_UP(__pa(_end));
+void __init setup_bootmem_allocator(unsigned long free_pfn)
+{
+ unsigned long bootmap_size;
/*
* Find a proper area for the bootmem bitmap. After this
* bootstrap step all allocations (until the page allocator
* is intact) must be done via bootmem_alloc().
*/
- bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
- __MEMORY_START>>PAGE_SHIFT,
- max_low_pfn);
- /*
- * Register fully available low RAM pages with the bootmem allocator.
- */
- {
- unsigned long curr_pfn, last_pfn, pages;
-
- /*
- * We are rounding up the start address of usable memory:
- */
- curr_pfn = PFN_UP(__MEMORY_START);
- /*
- * ... and at the end of the usable range downwards:
- */
- last_pfn = PFN_DOWN(__pa(memory_end));
-
- if (last_pfn > max_low_pfn)
- last_pfn = max_low_pfn;
-
- pages = last_pfn - curr_pfn;
- free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn),
- PFN_PHYS(pages));
- }
+ bootmap_size = init_bootmem_node(NODE_DATA(0), free_pfn,
+ min_low_pfn, max_low_pfn);
+
+ __add_active_range(0, min_low_pfn, max_low_pfn);
+ register_bootmem_low_pages();
+
+ node_set_online(0);
/*
* Reserve the kernel text and
* case of us accidentally initializing the bootmem allocator with
* an invalid RAM area.
*/
- reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE,
- (PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+ reserve_bootmem(__MEMORY_START+PAGE_SIZE,
+ (PFN_PHYS(free_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START,
+ BOOTMEM_DEFAULT);
/*
* reserve physical page 0 - it's a special BIOS page on many boxes,
* enabling clean reboots, SMP operation, laptop functions.
*/
- reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);
+ reserve_bootmem(__MEMORY_START, PAGE_SIZE, BOOTMEM_DEFAULT);
+
+ sparse_memory_present_with_active_regions(0);
#ifdef CONFIG_BLK_DEV_INITRD
- ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
- if (&__rd_start != &__rd_end) {
- LOADER_TYPE = 1;
- INITRD_START = PHYSADDR((unsigned long)&__rd_start) - __MEMORY_START;
- INITRD_SIZE = (unsigned long)&__rd_end - (unsigned long)&__rd_start;
- }
+ ROOT_DEV = Root_RAM0;
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
- reserve_bootmem_node(NODE_DATA(0), INITRD_START+__MEMORY_START, INITRD_SIZE);
- initrd_start =
- INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
+ reserve_bootmem(INITRD_START + __MEMORY_START,
+ INITRD_SIZE, BOOTMEM_DEFAULT);
+ initrd_start = INITRD_START + PAGE_OFFSET +
+ __MEMORY_START;
initrd_end = initrd_start + INITRD_SIZE;
} else {
printk("initrd extends beyond end of memory "
}
#endif
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
+ reserve_crashkernel();
+}
- /* Perform the machine specific initialisation */
- platform_setup();
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+static void __init setup_memory(void)
+{
+ unsigned long start_pfn;
- paging_init();
+ /*
+ * Partially used pages are not usable - thus
+ * we are rounding upwards:
+ */
+ start_pfn = PFN_UP(__pa(_end));
+ setup_bootmem_allocator(start_pfn);
}
+#else
+extern void __init setup_memory(void);
+#endif
-struct sh_machine_vector* __init get_mv_byname(const char* name)
+/*
+ * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
+ * is_kdump_kernel() to determine if we are booting after a panic. Hence
+ * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
+ */
+#ifdef CONFIG_CRASH_DUMP
+/* elfcorehdr= specifies the location of elf core header
+ * stored by the crashed kernel.
+ */
+static int __init parse_elfcorehdr(char *arg)
{
- extern int strcasecmp(const char *, const char *);
- extern long __machvec_start, __machvec_end;
- struct sh_machine_vector *all_vecs =
- (struct sh_machine_vector *)&__machvec_start;
-
- int i, n = ((unsigned long)&__machvec_end
- - (unsigned long)&__machvec_start)/
- sizeof(struct sh_machine_vector);
-
- for (i = 0; i < n; ++i) {
- struct sh_machine_vector *mv = &all_vecs[i];
- if (mv == NULL)
- continue;
- if (strcasecmp(name, get_system_type()) == 0) {
- return mv;
- }
- }
- return NULL;
+ if (!arg)
+ return -EINVAL;
+ elfcorehdr_addr = memparse(arg, &arg);
+ return 0;
}
+early_param("elfcorehdr", parse_elfcorehdr);
+#endif
-static struct cpu cpu[NR_CPUS];
-
-static int __init topology_init(void)
+void __init setup_arch(char **cmdline_p)
{
- int cpu_id;
+ enable_mmu();
- for_each_possible_cpu(cpu_id)
- register_cpu(&cpu[cpu_id], cpu_id);
+ ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
- return 0;
-}
+ printk(KERN_NOTICE "Boot params:\n"
+ "... MOUNT_ROOT_RDONLY - %08lx\n"
+ "... RAMDISK_FLAGS - %08lx\n"
+ "... ORIG_ROOT_DEV - %08lx\n"
+ "... LOADER_TYPE - %08lx\n"
+ "... INITRD_START - %08lx\n"
+ "... INITRD_SIZE - %08lx\n",
+ MOUNT_ROOT_RDONLY, RAMDISK_FLAGS,
+ ORIG_ROOT_DEV, LOADER_TYPE,
+ INITRD_START, INITRD_SIZE);
+
+#ifdef CONFIG_BLK_DEV_RAM
+ rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
+ rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
+ rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+#endif
+
+ if (!MOUNT_ROOT_RDONLY)
+ root_mountflags &= ~MS_RDONLY;
+ init_mm.start_code = (unsigned long) _text;
+ init_mm.end_code = (unsigned long) _etext;
+ init_mm.end_data = (unsigned long) _edata;
+ init_mm.brk = (unsigned long) _end;
+
+ code_resource.start = virt_to_phys(_text);
+ code_resource.end = virt_to_phys(_etext)-1;
+ data_resource.start = virt_to_phys(_etext);
+ data_resource.end = virt_to_phys(_edata)-1;
+ bss_resource.start = virt_to_phys(__bss_start);
+ bss_resource.end = virt_to_phys(_ebss)-1;
+
+ memory_start = (unsigned long)__va(__MEMORY_START);
+ if (!memory_end)
+ memory_end = memory_start + __MEMORY_SIZE;
+
+#ifdef CONFIG_CMDLINE_BOOL
+ strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
+#else
+ strlcpy(command_line, COMMAND_LINE, sizeof(command_line));
+#endif
+
+ /* Save unparsed command line copy for /proc/cmdline */
+ memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
+ *cmdline_p = command_line;
+
+ parse_early_param();
+
+ sh_mv_setup();
-subsys_initcall(topology_init);
+ /*
+ * Find the highest page frame number we have available
+ */
+ max_pfn = PFN_DOWN(__pa(memory_end));
+
+ /*
+ * Determine low and high memory ranges:
+ */
+ max_low_pfn = max_pfn;
+ min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
+
+ nodes_clear(node_online_map);
+
+ /* Setup bootmem with available RAM */
+ setup_memory();
+ sparse_init();
+
+#ifdef CONFIG_DUMMY_CONSOLE
+ conswitchp = &dummy_con;
+#endif
+
+ /* Perform the machine specific initialisation */
+ if (likely(sh_mv.mv_setup))
+ sh_mv.mv_setup(cmdline_p);
+
+ paging_init();
+
+#ifdef CONFIG_SMP
+ plat_smp_setup();
+#endif
+}
static const char *cpu_name[] = {
- [CPU_SH7604] = "SH7604",
- [CPU_SH7705] = "SH7705",
- [CPU_SH7708] = "SH7708",
- [CPU_SH7729] = "SH7729",
- [CPU_SH7300] = "SH7300",
- [CPU_SH7750] = "SH7750",
- [CPU_SH7750S] = "SH7750S",
- [CPU_SH7750R] = "SH7750R",
- [CPU_SH7751] = "SH7751",
- [CPU_SH7751R] = "SH7751R",
- [CPU_SH7760] = "SH7760",
- [CPU_SH73180] = "SH73180",
- [CPU_ST40RA] = "ST40RA",
- [CPU_ST40GX1] = "ST40GX1",
- [CPU_SH4_202] = "SH4-202",
- [CPU_SH4_501] = "SH4-501",
- [CPU_SH7770] = "SH7770",
- [CPU_SH7780] = "SH7780",
- [CPU_SH7781] = "SH7781",
- [CPU_SH_NONE] = "Unknown"
+ [CPU_SH7203] = "SH7203", [CPU_SH7263] = "SH7263",
+ [CPU_SH7206] = "SH7206", [CPU_SH7619] = "SH7619",
+ [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706",
+ [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708",
+ [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710",
+ [CPU_SH7712] = "SH7712", [CPU_SH7720] = "SH7720",
+ [CPU_SH7721] = "SH7721", [CPU_SH7729] = "SH7729",
+ [CPU_SH7750] = "SH7750", [CPU_SH7750S] = "SH7750S",
+ [CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751",
+ [CPU_SH7751R] = "SH7751R", [CPU_SH7760] = "SH7760",
+ [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501",
+ [CPU_SH7763] = "SH7763", [CPU_SH7770] = "SH7770",
+ [CPU_SH7780] = "SH7780", [CPU_SH7781] = "SH7781",
+ [CPU_SH7343] = "SH7343", [CPU_SH7785] = "SH7785",
+ [CPU_SH7722] = "SH7722", [CPU_SHX3] = "SH-X3",
+ [CPU_SH5_101] = "SH5-101", [CPU_SH5_103] = "SH5-103",
+ [CPU_MXG] = "MX-G", [CPU_SH7723] = "SH7723",
+ [CPU_SH7366] = "SH7366", [CPU_SH_NONE] = "Unknown"
};
-const char *get_cpu_subtype(void)
+const char *get_cpu_subtype(struct sh_cpuinfo *c)
{
- return cpu_name[boot_cpu_data.type];
+ return cpu_name[c->type];
}
+EXPORT_SYMBOL(get_cpu_subtype);
#ifdef CONFIG_PROC_FS
+/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
static const char *cpu_flags[] = {
- "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", "ptea", NULL
+ "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
+ "ptea", "llsc", "l2", "op32", NULL
};
-static void show_cpuflags(struct seq_file *m)
+static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
{
unsigned long i;
seq_printf(m, "cpu flags\t:");
- if (!cpu_data->flags) {
+ if (!c->flags) {
seq_printf(m, " %s\n", cpu_flags[0]);
return;
}
for (i = 0; cpu_flags[i]; i++)
- if ((cpu_data->flags & (1 << i)))
+ if ((c->flags & (1 << i)))
seq_printf(m, " %s", cpu_flags[i+1]);
seq_printf(m, "\n");
}
-static void show_cacheinfo(struct seq_file *m, const char *type, struct cache_info info)
+static void show_cacheinfo(struct seq_file *m, const char *type,
+ struct cache_info info)
{
unsigned int cache_size;
*/
static int show_cpuinfo(struct seq_file *m, void *v)
{
- unsigned int cpu = smp_processor_id();
+ struct sh_cpuinfo *c = v;
+ unsigned int cpu = c - cpu_data;
+
+ if (!cpu_online(cpu))
+ return 0;
- if (!cpu && cpu_online(cpu))
+ if (cpu == 0)
seq_printf(m, "machine\t\t: %s\n", get_system_type());
seq_printf(m, "processor\t: %d\n", cpu);
- seq_printf(m, "cpu family\t: %s\n", system_utsname.machine);
- seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
+ seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
+ seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
+ if (c->cut_major == -1)
+ seq_printf(m, "cut\t\t: unknown\n");
+ else if (c->cut_minor == -1)
+ seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
+ else
+ seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
- show_cpuflags(m);
+ show_cpuflags(m, c);
seq_printf(m, "cache type\t: ");
* unified cache on the SH-2 and SH-3, as well as the harvard
* style cache on the SH-4.
*/
- if (test_bit(SH_CACHE_COMBINED, &(boot_cpu_data.icache.flags))) {
+ if (c->icache.flags & SH_CACHE_COMBINED) {
seq_printf(m, "unified\n");
- show_cacheinfo(m, "cache", boot_cpu_data.icache);
+ show_cacheinfo(m, "cache", c->icache);
} else {
seq_printf(m, "split (harvard)\n");
- show_cacheinfo(m, "icache", boot_cpu_data.icache);
- show_cacheinfo(m, "dcache", boot_cpu_data.dcache);
+ show_cacheinfo(m, "icache", c->icache);
+ show_cacheinfo(m, "dcache", c->dcache);
}
+ /* Optional secondary cache */
+ if (c->flags & CPU_HAS_L2_CACHE)
+ show_cacheinfo(m, "scache", c->scache);
+
seq_printf(m, "bogomips\t: %lu.%02lu\n",
- boot_cpu_data.loops_per_jiffy/(500000/HZ),
- (boot_cpu_data.loops_per_jiffy/(5000/HZ)) % 100);
+ c->loops_per_jiffy/(500000/HZ),
+ (c->loops_per_jiffy/(5000/HZ)) % 100);
- return show_clocks(m);
+ return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
static void c_stop(struct seq_file *m, void *v)
{
}
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
};
#endif /* CONFIG_PROC_FS */
-#ifdef CONFIG_SH_KGDB
-/*
- * Parse command-line kgdb options. By default KGDB is enabled,
- * entered on error (or other action) using default serial info.
- * The command-line option can include a serial port specification
- * and an action to override default or configured behavior.
- */
-struct kgdb_sermap kgdb_sci_sermap =
-{ "ttySC", 5, kgdb_sci_setup, NULL };
-
-struct kgdb_sermap *kgdb_serlist = &kgdb_sci_sermap;
-struct kgdb_sermap *kgdb_porttype = &kgdb_sci_sermap;
-
-void kgdb_register_sermap(struct kgdb_sermap *map)
-{
- struct kgdb_sermap *last;
-
- for (last = kgdb_serlist; last->next; last = last->next)
- ;
- last->next = map;
- if (!map->namelen) {
- map->namelen = strlen(map->name);
- }
-}
+struct dentry *sh_debugfs_root;
-static int __init kgdb_parse_options(char *options)
+static int __init sh_debugfs_init(void)
{
- char c;
- int baud;
-
- /* Check for port spec (or use default) */
-
- /* Determine port type and instance */
- if (!memcmp(options, "tty", 3)) {
- struct kgdb_sermap *map = kgdb_serlist;
+ sh_debugfs_root = debugfs_create_dir("sh", NULL);
+ if (IS_ERR(sh_debugfs_root))
+ return PTR_ERR(sh_debugfs_root);
- while (map && memcmp(options, map->name, map->namelen))
- map = map->next;
-
- if (!map) {
- KGDB_PRINTK("unknown port spec in %s\n", options);
- return -1;
- }
-
- kgdb_porttype = map;
- kgdb_serial_setup = map->setup_fn;
- kgdb_portnum = options[map->namelen] - '0';
- options += map->namelen + 1;
-
- options = (*options == ',') ? options+1 : options;
-
- /* Read optional parameters (baud/parity/bits) */
- baud = simple_strtoul(options, &options, 10);
- if (baud != 0) {
- kgdb_baud = baud;
-
- c = toupper(*options);
- if (c == 'E' || c == 'O' || c == 'N') {
- kgdb_parity = c;
- options++;
- }
-
- c = *options;
- if (c == '7' || c == '8') {
- kgdb_bits = c;
- options++;
- }
- options = (*options == ',') ? options+1 : options;
- }
- }
-
- /* Check for action specification */
- if (!memcmp(options, "halt", 4)) {
- kgdb_halt = 1;
- options += 4;
- } else if (!memcmp(options, "disabled", 8)) {
- kgdb_enabled = 0;
- options += 8;
- }
-
- if (*options) {
- KGDB_PRINTK("ignored unknown options: %s\n", options);
- return 0;
- }
- return 1;
+ return 0;
}
-__setup("kgdb=", kgdb_parse_options);
-#endif /* CONFIG_SH_KGDB */
-
+arch_initcall(sh_debugfs_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff