Hi! I seem to have forgotten to post this series last release; so here goes. I'm really hoping to merge it and forget about it. Since Linus hated on cmpxchg_double(), a few patches to get rid of it, as proposed here: https://lkml.kernel.org/r/Y2U3WdU61FvYlpUh@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx These patches are based on 6.4.0-rc2. Available here: git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git core/wip-u128 Since v2: - reworked this_cpu_cmpxchg() to not implicity do u128 but provide explicit this_cpu_cmpxchg128() (arnd) - added try_cmpxchg12_local() (per the addition of the try_cmpxchg*_local() family of functions) - slight cleanup of the SLUB conversion (due to rebase and having to touch it) - added a 'cleanup' patch for SLUB, since I was staring at that anyway Since v1: - rebaed on Eric's ghash cleanups (hence the cryptodev-2.6 dependency) - rebased on Heiko's s390/cpum_sf CDSG patch - fixed up a bunch of arch code - fixed up the inline asm to use 'u128 *' mem argument so the compiler knows how wide the modification is. - reworked the percpu thing to use union based type-punning instead of _Generic() based casts. --- Documentation/core-api/this_cpu_ops.rst | 2 - arch/arm64/include/asm/atomic_ll_sc.h | 56 ++++---- arch/arm64/include/asm/atomic_lse.h | 39 +++--- arch/arm64/include/asm/cmpxchg.h | 48 ++----- arch/arm64/include/asm/percpu.h | 30 +++-- arch/s390/include/asm/cmpxchg.h | 32 +---- arch/s390/include/asm/cpu_mf.h | 2 +- arch/s390/include/asm/percpu.h | 34 +++-- arch/s390/kernel/perf_cpum_sf.c | 16 +-- arch/x86/include/asm/cmpxchg.h | 25 ---- arch/x86/include/asm/cmpxchg_32.h | 2 +- arch/x86/include/asm/cmpxchg_64.h | 63 ++++++++- arch/x86/include/asm/percpu.h | 100 +++++++++------ drivers/iommu/amd/amd_iommu_types.h | 9 +- drivers/iommu/amd/iommu.c | 10 +- drivers/iommu/intel/irq_remapping.c | 8 +- include/asm-generic/percpu.h | 66 ++-------- include/crypto/b128ops.h | 14 +- include/linux/atomic/atomic-arch-fallback.h | 95 +++++++++++++- include/linux/atomic/atomic-instrumented.h | 93 ++++++++++++-- include/linux/dmar.h | 125 +++++++++--------- include/linux/percpu-defs.h | 38 ------ include/linux/slub_def.h | 12 +- include/linux/types.h | 5 + include/uapi/linux/types.h | 4 + lib/crypto/curve25519-hacl64.c | 2 - lib/crypto/poly1305-donna64.c | 2 - mm/slab.h | 49 ++++++- mm/slub.c | 191 ++++++++++++++-------------- scripts/atomic/gen-atomic-fallback.sh | 4 +- scripts/atomic/gen-atomic-instrumented.sh | 19 +-- 31 files changed, 667 insertions(+), 528 deletions(-)
