Commit af6ed37e authored by Heiko Carstens's avatar Heiko Carstens Committed by Alexander Gordeev
Browse files

s390/fpu: remove "novx" option 



Remove the "novx" kernel command line option: the vector code runs
without any problems since many years.

Reviewed-by: default avatarHendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
parent d7f679ec

arch/s390/kernel/early.c

+0 −8
Original line number Diff line number Diff line
@@ -271,14 +271,6 @@ static inline void setup_access_registers(void) 
	restore_access_regs(acrs);

}



static int __init disable_vector_extension(char *str)

{

	S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;

	system_ctl_clear_bit(0, CR0_VECTOR_BIT);

	return 0;

}

early_param("novx", disable_vector_extension);



char __bootdata(early_command_line)[COMMAND_LINE_SIZE];

static void __init setup_boot_command_line(void)

{

arch/s390/kernel/processor.c

+1 −4
Original line number Diff line number Diff line
@@ -201,10 +201,7 @@ static int __init setup_hwcaps(void) 
	if (MACHINE_HAS_TE)

		elf_hwcap |= HWCAP_TE;



	/*

	 * Vector extension can be disabled with the "novx" parameter.

	 * Use MACHINE_HAS_VX instead of facility bit 129.

	 */

	/* Use MACHINE_HAS_VX instead of facility bit 129. */

	if (MACHINE_HAS_VX) {

		elf_hwcap |= HWCAP_VXRS;

		if (test_facility(134))