release/src-rt-6.x.4708/linux/linux-2.6.36/arch/ia64/kernel/machvec.c

   1 #include <linux/module.h>
   2 #include <linux/dma-mapping.h>
   3 #include <asm/machvec.h>
   4 #include <asm/system.h>
   5
   6 #ifdef CONFIG_IA64_GENERIC
   7
   8 #include <linux/kernel.h>
   9 #include <linux/string.h>
  10
  11 #include <asm/page.h>
  12
  13 struct ia64_machine_vector ia64_mv;
  14 EXPORT_SYMBOL(ia64_mv);
  15
  16 static struct ia64_machine_vector * __init
  17 lookup_machvec (const char *name)
  18 {
  19         extern struct ia64_machine_vector machvec_start[];
  20         extern struct ia64_machine_vector machvec_end[];
  21         struct ia64_machine_vector *mv;
  22
  23         for (mv = machvec_start; mv < machvec_end; ++mv)
  24                 if (strcmp (mv->name, name) == 0)
  25                         return mv;
  26
  27         return 0;
  28 }
  29
  30 void __init
  31 machvec_init (const char *name)
  32 {
  33         struct ia64_machine_vector *mv;
  34
  35         if (!name)
  36                 name = acpi_get_sysname();
  37         mv = lookup_machvec(name);
  38         if (!mv)
  39                 panic("generic kernel failed to find machine vector for"
  40                       " platform %s!", name);
  41
  42         ia64_mv = *mv;
  43         printk(KERN_INFO "booting generic kernel on platform %s\n", name);
  44 }
  45
  46 void __init
  47 machvec_init_from_cmdline(const char *cmdline)
  48 {
  49         char str[64];
  50         const char *start;
  51         char *end;
  52
  53         if (! (start = strstr(cmdline, "machvec=")) )
  54                 return machvec_init(NULL);
  55
  56         strlcpy(str, start + strlen("machvec="), sizeof(str));
  57         if ( (end = strchr(str, ' ')) )
  58                 *end = '\0';
  59
  60         return machvec_init(str);
  61 }
  62
  63 #endif /* CONFIG_IA64_GENERIC */
  64
  65 void
  66 machvec_setup (char **arg)
  67 {
  68 }
  69 EXPORT_SYMBOL(machvec_setup);
  70
  71 void
  72 machvec_timer_interrupt (int irq, void *dev_id)
  73 {
  74 }
  75 EXPORT_SYMBOL(machvec_timer_interrupt);
  76
  77 void
  78 machvec_dma_sync_single(struct device *hwdev, dma_addr_t dma_handle, size_t size,
  79                         enum dma_data_direction dir)
  80 {
  81         mb();
  82 }
  83 EXPORT_SYMBOL(machvec_dma_sync_single);
  84
  85 void
  86 machvec_dma_sync_sg(struct device *hwdev, struct scatterlist *sg, int n,
  87                     enum dma_data_direction dir)
  88 {
  89         mb();
  90 }
  91 EXPORT_SYMBOL(machvec_dma_sync_sg);