arch/ia64/kernel/machvec.c

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