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/*
* linux/arch/mips/kernel/ioport.c
*/
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/ioport.h>
/*
* This changes the io permissions bitmap in the current task.
*/
asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int turn_on)
{
return -ENOSYS;
}
/*
* sys_iopl has to be used when you want to access the IO ports
* beyond the 0x3ff range: to get the full 65536 ports bitmapped
* you'd need 8kB of bitmaps/process, which is a bit excessive.
*
* Here we just change the eflags value on the stack: we allow
* only the super-user to do it. This depends on the stack-layout
* on system-call entry - see also fork() and the signal handling
* code.
*/
asmlinkage int sys_iopl(long ebx,long ecx,long edx,
long esi, long edi, long ebp, long eax, long ds,
long es, long fs, long gs, long orig_eax,
long eip,long cs,long eflags,long esp,long ss)
{
return -ENOSYS;
}
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