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Commit 7b758389 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

[S390] Export stfle. 



Make stfle visible so other code can call this.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent cbce70e6

arch/s390/kernel/setup.c

+9 −2
Original line number Diff line number Diff line
@@ -687,7 +687,7 @@ static __init unsigned int stfl(void) 
	return S390_lowcore.stfl_fac_list;

}



static __init int stfle(unsigned long long *list, int doublewords)

static int __init __stfle(unsigned long long *list, int doublewords)

{

	typedef struct { unsigned long long _[doublewords]; } addrtype;

	register unsigned long __nr asm("0") = doublewords - 1;
@@ -697,6 +697,13 @@ static __init int stfle(unsigned long long *list, int doublewords) 
	return __nr + 1;

}



int __init stfle(unsigned long long *list, int doublewords)

{

	if (!(stfl() & (1UL << 24)))

		return -EOPNOTSUPP;

	return __stfle(list, doublewords);

}



/*

 * Setup hardware capabilities.

 */
@@ -741,7 +748,7 @@ static void __init setup_hwcaps(void) 
	 *   HWCAP_S390_DFP bit 6.

	 */

	if ((elf_hwcap & (1UL << 2)) &&

	    stfle(&facility_list_extended, 1) > 0) {

	    __stfle(&facility_list_extended, 1) > 0) {

		if (facility_list_extended & (1ULL << (64 - 43)))

			elf_hwcap |= 1UL << 6;

	}

include/asm-s390/system.h

+2 −0
Original line number Diff line number Diff line
@@ -406,6 +406,8 @@ __set_psw_mask(unsigned long mask) 
#define local_mcck_enable()  __set_psw_mask(psw_kernel_bits)

#define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)



int stfle(unsigned long long *list, int doublewords);



#ifdef CONFIG_SMP



extern void smp_ctl_set_bit(int cr, int bit);