a07ee86205
Parse the machvec command line option outside of the early_param() so that ia64_mv is set before any console intialisation that may result from early_param parsing. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
#include <linux/module.h>
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#include <asm/machvec.h>
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#include <asm/system.h>
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#ifdef CONFIG_IA64_GENERIC
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <asm/page.h>
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struct ia64_machine_vector ia64_mv;
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EXPORT_SYMBOL(ia64_mv);
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static struct ia64_machine_vector * __init
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lookup_machvec (const char *name)
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{
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extern struct ia64_machine_vector machvec_start[];
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extern struct ia64_machine_vector machvec_end[];
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struct ia64_machine_vector *mv;
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for (mv = machvec_start; mv < machvec_end; ++mv)
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if (strcmp (mv->name, name) == 0)
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return mv;
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return 0;
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}
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void __init
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machvec_init (const char *name)
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{
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struct ia64_machine_vector *mv;
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if (!name)
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name = acpi_get_sysname();
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mv = lookup_machvec(name);
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if (!mv)
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panic("generic kernel failed to find machine vector for"
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" platform %s!", name);
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ia64_mv = *mv;
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printk(KERN_INFO "booting generic kernel on platform %s\n", name);
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}
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void __init
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machvec_init_from_cmdline(const char *cmdline)
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{
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char str[64];
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const char *start;
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char *end;
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if (! (start = strstr(cmdline, "machvec=")) )
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return machvec_init(NULL);
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strlcpy(str, start + strlen("machvec="), sizeof(str));
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if ( (end = strchr(str, ' ')) )
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*end = '\0';
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return machvec_init(str);
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}
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#endif /* CONFIG_IA64_GENERIC */
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void
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machvec_setup (char **arg)
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{
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}
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EXPORT_SYMBOL(machvec_setup);
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void
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machvec_timer_interrupt (int irq, void *dev_id)
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{
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}
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EXPORT_SYMBOL(machvec_timer_interrupt);
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void
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machvec_dma_sync_single (struct device *hwdev, dma_addr_t dma_handle, size_t size, int dir)
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{
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mb();
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}
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EXPORT_SYMBOL(machvec_dma_sync_single);
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void
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machvec_dma_sync_sg (struct device *hwdev, struct scatterlist *sg, int n, int dir)
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{
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mb();
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}
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EXPORT_SYMBOL(machvec_dma_sync_sg);
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