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authorHeiko Carstens <hca@linux.ibm.com>2023-12-01 15:42:17 +0100
committerAlexander Gordeev <agordeev@linux.ibm.com>2023-12-11 14:33:06 +0100
commitaf6ed37eb0bebc5661f653ed3704d606c2e8ec94 (patch)
treebb822771fbc18577be2beff9790138d698ee3d16
parentd7f679ec868e8675c269c742a2ba58c6aceaf52b (diff)
s390/fpu: remove "novx" option
Remove the "novx" kernel command line option: the vector code runs without any problems since many years. Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
-rw-r--r--arch/s390/kernel/early.c8
-rw-r--r--arch/s390/kernel/processor.c5
2 files changed, 1 insertions, 12 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index eb43e5922a25..a34360652554 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -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)
{
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 0a999c8226d7..4a57453bfa6d 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -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))