diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2024-07-16 13:50:56 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2024-07-23 16:02:31 +0200 |
| commit | beb8cee06f9b8726616ba87783116cb8fb889c7a (patch) | |
| tree | 55922612a226cac655607c090a0efc2271dfb52e /arch/s390 | |
| parent | s390/nospec: Push down alternative handling (diff) | |
| download | linux-beb8cee06f9b8726616ba87783116cb8fb889c7a.tar.xz linux-beb8cee06f9b8726616ba87783116cb8fb889c7a.zip | |
s390/alternatives: Remove alternative facility list
The alternative and the normal facility list are always identical. Remove
the alternative facility list, which allows to simplify the alternatives
code.
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/alternative.h | 9 | ||||
| -rw-r--r-- | arch/s390/include/asm/facility.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/alternative.c | 7 | ||||
| -rw-r--r-- | arch/s390/kernel/early.c | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 1 |
5 files changed, 5 insertions, 19 deletions
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h index 5f56a2f3aba6..3ddd6dbe5635 100644 --- a/arch/s390/include/asm/alternative.h +++ b/arch/s390/include/asm/alternative.h @@ -31,16 +31,15 @@ #define ALT_CTX_LATE 2 #define ALT_CTX_ALL (ALT_CTX_EARLY | ALT_CTX_LATE) -#define ALT_TYPE_FACILITY_EARLY 0 -#define ALT_TYPE_FACILITY 1 -#define ALT_TYPE_SPEC 2 +#define ALT_TYPE_FACILITY 0 +#define ALT_TYPE_SPEC 1 #define ALT_DATA_SHIFT 0 #define ALT_TYPE_SHIFT 20 #define ALT_CTX_SHIFT 28 -#define ALT_FACILITY_EARLY(facility) (ALT_CTX_EARLY << ALT_CTX_SHIFT | \ - ALT_TYPE_FACILITY_EARLY << ALT_TYPE_SHIFT | \ +#define ALT_FACILITY_EARLY(facility) (ALT_CTX_EARLY << ALT_CTX_SHIFT | \ + ALT_TYPE_FACILITY << ALT_TYPE_SHIFT | \ (facility) << ALT_DATA_SHIFT) #define ALT_FACILITY(facility) (ALT_CTX_LATE << ALT_CTX_SHIFT | \ diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h index d46cc725f024..b7d234838a36 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -20,7 +20,6 @@ #define MAX_FACILITY_BIT (sizeof(stfle_fac_list) * 8) extern u64 stfle_fac_list[16]; -extern u64 alt_stfle_fac_list[16]; static inline void __set_facility(unsigned long nr, void *facilities) { diff --git a/arch/s390/kernel/alternative.c b/arch/s390/kernel/alternative.c index 05545669552f..eae254466192 100644 --- a/arch/s390/kernel/alternative.c +++ b/arch/s390/kernel/alternative.c @@ -19,14 +19,9 @@ void __apply_alternatives(struct alt_instr *start, struct alt_instr *end, unsign if (!(a->ctx & ctx)) continue; switch (a->type) { - case ALT_TYPE_FACILITY_EARLY: - replace = test_facility(a->data); - break; -#ifndef __DECOMPRESSOR case ALT_TYPE_FACILITY: - replace = __test_facility(a->data, alt_stfle_fac_list); + replace = test_facility(a->data); break; -#endif case ALT_TYPE_SPEC: replace = nobp_enabled(); break; diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index d142598e0532..3ce77cee272d 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -190,11 +190,6 @@ static noinline __init void setup_lowcore_early(void) get_lowcore()->preempt_count = INIT_PREEMPT_COUNT; } -static noinline __init void setup_facility_list(void) -{ - memcpy(alt_stfle_fac_list, stfle_fac_list, sizeof(alt_stfle_fac_list)); -} - static __init void detect_diag9c(void) { unsigned int cpu_address; @@ -289,7 +284,6 @@ void __init startup_init(void) lockdep_off(); sort_amode31_extable(); setup_lowcore_early(); - setup_facility_list(); detect_machine_type(); setup_arch_string(); setup_boot_command_line(); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 178daf4e3563..700003e1bc76 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -155,7 +155,6 @@ unsigned int __bootdata_preserved(zlib_dfltcc_support); EXPORT_SYMBOL(zlib_dfltcc_support); u64 __bootdata_preserved(stfle_fac_list[16]); EXPORT_SYMBOL(stfle_fac_list); -u64 alt_stfle_fac_list[16]; struct oldmem_data __bootdata_preserved(oldmem_data); unsigned long VMALLOC_START; |