search for: memcpy_64

...arch/x86/entry/entry_64_compat.S | 8 ++-- arch/x86/entry/vdso/vdso32/system_call.S | 10 ++--- arch/x86/include/asm/alternative-asm.h | 68 +++++++++++++++----------------- arch/x86/include/asm/smap.h | 4 +- arch/x86/lib/copy_page_64.S | 2 +- arch/x86/lib/memcpy_64.S | 4 +- arch/x86/lib/memmove_64.S | 3 +- arch/x86/lib/memset_64.S | 4 +- 10 files changed, 59 insertions(+), 66 deletions(-) diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 21d1197779a4..338dc838a9a8 100644 --- a/arch/x...

...b/Makefile b/arch/powerpc/lib/Makefile index 5e994cda8e40..d66a645503eb 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -41,7 +41,10 @@ obj-$(CONFIG_PPC_BOOK3S_64) += copyuser_power7.o copypage_power7.o \ obj64-y += copypage_64.o copyuser_64.o mem_64.o hweight_64.o \ memcpy_64.o memcpy_mcsafe_64.o +ifndef CONFIG_PPC_QUEUED_SPINLOCKS obj64-$(CONFIG_SMP) += locks.o +endif + obj64-$(CONFIG_ALTIVEC) += vmx-helper.o obj64-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o \ test_emulate_step_exec_instr.o diff --git a/include/asm-generic/qspinlock.h b/include/a...

...b/Makefile b/arch/powerpc/lib/Makefile index 5e994cda8e40..d66a645503eb 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -41,7 +41,10 @@ obj-$(CONFIG_PPC_BOOK3S_64) += copyuser_power7.o copypage_power7.o \ obj64-y += copypage_64.o copyuser_64.o mem_64.o hweight_64.o \ memcpy_64.o memcpy_mcsafe_64.o +ifndef CONFIG_PPC_QUEUED_SPINLOCKS obj64-$(CONFIG_SMP) += locks.o +endif + obj64-$(CONFIG_ALTIVEC) += vmx-helper.o obj64-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o \ test_emulate_step_exec_instr.o diff --git a/include/asm-generic/qspinlock.h b/include/a...

...le.c | 11 +- arch/x86/kernel/paravirt.c | 1 - arch/x86/kernel/paravirt_patch_32.c | 21 +-- arch/x86/kernel/paravirt_patch_64.c | 31 ++-- arch/x86/kernel/vmlinux.lds.S | 6 + arch/x86/lib/copy_page_64.S | 2 +- arch/x86/lib/memcpy_64.S | 4 +- arch/x86/lib/memmove_64.S | 3 +- arch/x86/lib/memset_64.S | 4 +- arch/x86/xen/enlighten_pv.c | 3 +- tools/objtool/special.c | 10 ++ 26 files changed, 516 insertions(+), 341 deletions(-) create mode...

...le.c | 11 +- arch/x86/kernel/paravirt.c | 1 - arch/x86/kernel/paravirt_patch_32.c | 21 +-- arch/x86/kernel/paravirt_patch_64.c | 31 ++-- arch/x86/kernel/vmlinux.lds.S | 6 + arch/x86/lib/copy_page_64.S | 2 +- arch/x86/lib/memcpy_64.S | 4 +- arch/x86/lib/memmove_64.S | 3 +- arch/x86/lib/memset_64.S | 4 +- arch/x86/xen/enlighten_pv.c | 3 +- tools/objtool/special.c | 10 ++ 26 files changed, 516 insertions(+), 341 deletions(-) create mode...

https://bugs.freedesktop.org/show_bug.cgi?id=91738 Bug ID: 91738 Summary: xf86-video-nouveau 1.0.11 will not allow X to start Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: Driver/nouveau

This series adds an option to use queued spinlocks for powerpc, and makes it the default for the Book3S-64 subarch. This effort starts with the generic code so it's very simple but still very performant. There are optimisations that can be made to slowpaths, but I think it's better to attack those incrementally if/when we find things, and try to add the improvements to generic code as

v2 is updated to account for feedback from Will, Peter, and Waiman (thank you), and trims off a couple of RFC and unrelated patches. Thanks, Nick Nicholas Piggin (6): powerpc/powernv: must include hvcall.h to get PAPR defines powerpc/pseries: move some PAPR paravirt functions to their own file powerpc: move spinlock implementation to simple_spinlock powerpc/64s: implement queued

Updated with everybody's feedback (thanks all), and more performance results. What I've found is I might have been measuring the worst load point for the paravirt case, and by looking at a range of loads it's clear that queued spinlocks are overall better even on PV, doubly so when you look at the generally much improved worst case latencies. I have defaulted it to N even though

v3 is updated to use __pv_queued_spin_unlock, noticed by Waiman (thank you). Thanks, Nick Nicholas Piggin (6): powerpc/powernv: must include hvcall.h to get PAPR defines powerpc/pseries: move some PAPR paravirt functions to their own file powerpc: move spinlock implementation to simple_spinlock powerpc/64s: implement queued spinlocks and rwlocks powerpc/pseries: implement paravirt

v3 is updated to use __pv_queued_spin_unlock, noticed by Waiman (thank you). Thanks, Nick Nicholas Piggin (6): powerpc/powernv: must include hvcall.h to get PAPR defines powerpc/pseries: move some PAPR paravirt functions to their own file powerpc: move spinlock implementation to simple_spinlock powerpc/64s: implement queued spinlocks and rwlocks powerpc/pseries: implement paravirt