diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-18 15:24:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-18 15:24:59 -0700 |
| commit | dde1a0e1625c08cf4f958348a83434b2ddecf449 (patch) | |
| tree | ac774ab8d8753bf7b3dee4c0a8896e16f6943c21 /arch/x86/Kconfig | |
| parent | 76d9b92e68f2bb55890f935c5143f4fef97a935d (diff) | |
| parent | 47ff30cc1be7bf426c03ecc84371452109b416e4 (diff) | |
Merge tag 'x86-percpu-2024-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 percpu updates from Ingo Molnar:
- Enable the named address spaces based percpu accessors optimization
on all GCC versions that contain this feature, detected through a
build-time testcase.
This effectively enables the feature on GCC 6, GCC 7 and GCC 8
versions.
- Fix operand constraint modifier in __raw_cpu_write()
- Reorganize the per-CPU headers for better readability
- Misc cleanups and fixes
* tag 'x86-percpu-2024-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/percpu: Enable named address spaces for all capable GCC versions
x86/percpu: Clean up <asm/percpu.h> vertical alignment details
x86/percpu: Clean up <asm/percpu.h> a bit
x86/percpu: Move some percpu accessors around to reduce ifdeffery
x86/percpu: Rename percpu_stable_op() to __raw_cpu_read_stable()
x86/percpu: Fix operand constraint modifier in __raw_cpu_write()
x86/percpu: Introduce the __raw_cpu_read_const() macro
x86/percpu: Unify percpu read-write accessors
x86/percpu: Move some percpu macros around for readability
x86/percpu: Introduce the pcpu_binary_op() macro
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7cd41bbaf875..cbe5fac4b9dd 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2428,7 +2428,8 @@ source "kernel/livepatch/Kconfig" endmenu config CC_HAS_NAMED_AS - def_bool CC_IS_GCC && GCC_VERSION >= 90100 + def_bool $(success,echo 'int __seg_fs fs; int __seg_gs gs;' | $(CC) -x c - -S -o /dev/null) + depends on CC_IS_GCC config CC_HAS_NAMED_AS_FIXED_SANITIZERS def_bool CC_IS_GCC && GCC_VERSION >= 130300 |