diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2022-07-13 15:56:42 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-07-19 17:18:49 +0300 |
| commit | 0a5f9b382c6131381f9f2ed64ae6fdd994328d0d (patch) | |
| tree | 10975615394744fcc4d89dccf0ccd7bb314fe403 /arch/s390/kernel/processor.c | |
| parent | 693714b900cea5417d7b3a48891b961d40fb5c55 (diff) | |
| download | linux-0a5f9b382c6131381f9f2ed64ae6fdd994328d0d.tar.xz | |
s390/cpufeature: rework to allow more than only hwcap bits
Rework cpufeature implementation to allow for various cpu feature
indications, which is not only limited to hwcap bits. This is achieved
by adding a sequential list of cpu feature numbers, where each of them
is mapped to an entry which indicates what this number is about.
Each entry contains a type member, which indicates what feature
name space to look into (e.g. hwcap, or cpu facility). If wanted this
allows also to automatically load modules only in e.g. z/VM
configurations.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Link: https://lore.kernel.org/r/20220713125644.16121-2-seiden@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/processor.c')
| -rw-r--r-- | arch/s390/kernel/processor.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index aa0e0e7fc773..a194611ba88c 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -8,7 +8,6 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/stop_machine.h> -#include <linux/cpufeature.h> #include <linux/bitops.h> #include <linux/kernel.h> #include <linux/random.h> @@ -96,15 +95,6 @@ void cpu_init(void) enter_lazy_tlb(&init_mm, current); } -/* - * cpu_have_feature - Test CPU features on module initialization - */ -int cpu_have_feature(unsigned int num) -{ - return elf_hwcap & (1UL << num); -} -EXPORT_SYMBOL(cpu_have_feature); - static void show_facilities(struct seq_file *m) { unsigned int bit; |