[S390] Export stfle. (7b758389) · Commits · 戴 / test

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;
		}

+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);