Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

[sfrench/cifs-2.6.git] / arch / sh / kernel / setup.c

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 6f1ea9b3337424d2700c19320f9c588ce0855e11..b749403f6b382fe3c4108be924e5caa5e10afe80 100644 (file)
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -21,6 +21,8 @@
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/kexec.h>
+#include <linux/module.h>
+#include <linux/smp.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/page.h>
@@ -41,7 +43,13 @@ extern void * __rd_start, * __rd_end;
  * 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 sh_cpuinfo cpu_data[NR_CPUS] __read_mostly = {
+       [0] = {
+               .type                   = CPU_SH_NONE,
+               .loops_per_jiffy        = 10000000,
+       },
+};
+EXPORT_SYMBOL(cpu_data);
 
 /*
  * The machine vector. First entry in .machvec.init, or clobbered by
@@ -78,7 +86,11 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
 static struct resource code_resource = { .name = "Kernel code", };
 static struct resource data_resource = { .name = "Kernel data", };
 
-unsigned long memory_start, memory_end;
+unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+
+unsigned long memory_end;
+EXPORT_SYMBOL(memory_end);
 
 static int __init early_parse_mem(char *p)
 {
@@ -116,7 +128,38 @@ static void __init register_bootmem_low_pages(void)
        free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
 }
 
-void __init setup_bootmem_allocator(unsigned long start_pfn)
+#ifdef CONFIG_KEXEC
+static void __init reserve_crashkernel(void)
+{
+       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 "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;
+                       reserve_bootmem(crash_base, crash_size);
+               } else
+                       printk(KERN_INFO "crashkernel reservation failed - "
+                                       "you have to specify a base address\n");
+       }
+}
+#else
+static inline void __init reserve_crashkernel(void)
+{}
+#endif
+
+void __init setup_bootmem_allocator(unsigned long free_pfn)
 {
        unsigned long bootmap_size;
 
@@ -125,9 +168,10 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
         * 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,
+       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);
@@ -140,7 +184,7 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
         * an invalid RAM area.
         */
        reserve_bootmem(__MEMORY_START+PAGE_SIZE,
-               (PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+               (PFN_PHYS(free_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
 
        /*
         * reserve physical page 0 - it's a special BIOS page on many boxes,
@@ -148,6 +192,8 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
         */
        reserve_bootmem(__MEMORY_START, PAGE_SIZE);
 
+       sparse_memory_present_with_active_regions(0);
+
 #ifdef CONFIG_BLK_DEV_INITRD
        ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
        if (&__rd_start != &__rd_end) {
@@ -174,11 +220,8 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
                }
        }
 #endif
-#ifdef CONFIG_KEXEC
-       if (crashk_res.start != crashk_res.end)
-               reserve_bootmem(crashk_res.start,
-                       crashk_res.end - crashk_res.start + 1);
-#endif
+
+       reserve_crashkernel();
 }
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -250,8 +293,9 @@ void __init setup_arch(char **cmdline_p)
        min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
 
        nodes_clear(node_online_map);
+
+       /* Setup bootmem with available RAM */
        setup_memory();
-       paging_init();
        sparse_init();
 
 #ifdef CONFIG_DUMMY_CONSOLE
@@ -261,26 +305,30 @@ void __init setup_arch(char **cmdline_p)
        /* 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_SH7206]    = "SH7206",     [CPU_SH7619]    = "SH7619",
-       [CPU_SH7604]    = "SH7604",     [CPU_SH7300]    = "SH7300",
        [CPU_SH7705]    = "SH7705",     [CPU_SH7706]    = "SH7706",
        [CPU_SH7707]    = "SH7707",     [CPU_SH7708]    = "SH7708",
        [CPU_SH7709]    = "SH7709",     [CPU_SH7710]    = "SH7710",
-       [CPU_SH7712]    = "SH7712",
+       [CPU_SH7712]    = "SH7712",     [CPU_SH7720]    = "SH7720",
        [CPU_SH7729]    = "SH7729",     [CPU_SH7750]    = "SH7750",
        [CPU_SH7750S]   = "SH7750S",    [CPU_SH7750R]   = "SH7750R",
        [CPU_SH7751]    = "SH7751",     [CPU_SH7751R]   = "SH7751R",
-       [CPU_SH7760]    = "SH7760",     [CPU_SH73180]   = "SH73180",
+       [CPU_SH7760]    = "SH7760",
        [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_SH7343]    = "SH7343",
        [CPU_SH7785]    = "SH7785",     [CPU_SH7722]    = "SH7722",
-       [CPU_SH_NONE]   = "Unknown"
+       [CPU_SHX3]      = "SH-X3",      [CPU_SH_NONE]   = "Unknown"
 };
 
 const char *get_cpu_subtype(struct sh_cpuinfo *c)