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Groups > linux.kernel > #1573195
| From | Stafford Horne <shorne@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 00/23] OpenRISC patches from backlog for 4.11 |
| Date | 2017-02-03 16:50 +0100 |
| Message-ID | <t6Ohz-3Ax-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Hi All, Changes from v1 o added change set from Valentin catching CONFIG issues o added missing test_and_change_bit atomic bitops patch This is mostly a resend since I didnt really get many comments on the original patch series. This is in linux-next and the build infra has pointed out some issues, but any feedback is appreciated. The interesting things here are: - optimized memset and memcpy routines, ~20% boot time saving - support for cpu idling - adding support for l.swa and l.lwa atomic operations (in spec from 2014) - use atomics to implement: bitops, cmpxchg, futex, spinlocks - the atomics are in preparation for SMP support Testing: I have used the kselftests to validate the changes especially the futex operations with the futex test. Other atomic operations are common so no explicit testing. Note for testers: The l.swa and l.lwa emulation is broken in qemu openrisc port. I have sent patches [1] to qemu-devel to fix the qemu issues. Also an recent toolchain [2] will be needed to build this, I have sent mails to various folks about updating crosstool and/or make.cross to no avail. Any pointers would be helpful. -Stafford [1] lists.nongnu.org/archive/html/qemu-devel/2017-01/msg02764.html [2] shorne.noip.me/crosstool/files/bin/x86_64/5.4.0/ Jonas Bonn (1): openrisc: use SPARSE_IRQ Olof Kindgren (1): openrisc: Add optimized memset Sebastian Macke (2): openrisc: Fix the bitmask for the unit present register openrisc: Initial support for the idle state Stafford Horne (7): openrisc: Add optimized memcpy routine openrisc: Add .gitignore MAINTAINERS: Add the openrisc official repository scripts/checkstack.pl: Add openrisc support openrisc: entry: Whitespace and comment cleanups openrisc: entry: Fix delay slot detection openrisc: head: Move init strings to rodata section Stefan Kristiansson (11): openrisc: add cache way information to cpuinfo openrisc: tlb miss handler optimizations openrisc: head: use THREAD_SIZE instead of magic constant openrisc: head: refactor out tlb flush into it's own function openrisc: add l.lwa/l.swa emulation openrisc: add atomic bitops openrisc: add cmpxchg and xchg implementations openrisc: add optimized atomic operations openrisc: add spinlock implementation openrisc: add futex_atomic_* implementations openrisc: remove unnecessary stddef.h include Valentin Rothberg (1): arch/openrisc/lib/memcpy.c: use correct OR1200 option MAINTAINERS | 1 + arch/openrisc/Kconfig | 1 + arch/openrisc/TODO.openrisc | 1 - arch/openrisc/include/asm/Kbuild | 5 +- arch/openrisc/include/asm/atomic.h | 53 +++++++ arch/openrisc/include/asm/bitops.h | 2 +- arch/openrisc/include/asm/bitops/atomic.h | 123 +++++++++++++++ arch/openrisc/include/asm/cmpxchg.h | 82 ++++++++++ arch/openrisc/include/asm/cpuinfo.h | 2 + arch/openrisc/include/asm/futex.h | 135 +++++++++++++++++ arch/openrisc/include/asm/spinlock.h | 232 ++++++++++++++++++++++++++++- arch/openrisc/include/asm/spinlock_types.h | 28 ++++ arch/openrisc/include/asm/spr_defs.h | 4 +- arch/openrisc/include/asm/string.h | 10 ++ arch/openrisc/kernel/.gitignore | 1 + arch/openrisc/kernel/entry.S | 60 +++++--- arch/openrisc/kernel/head.S | 195 +++++++++--------------- arch/openrisc/kernel/or32_ksyms.c | 1 + arch/openrisc/kernel/process.c | 17 +++ arch/openrisc/kernel/ptrace.c | 1 - arch/openrisc/kernel/setup.c | 67 +++++---- arch/openrisc/kernel/traps.c | 183 +++++++++++++++++++++++ arch/openrisc/lib/Makefile | 2 +- arch/openrisc/lib/memcpy.c | 124 +++++++++++++++ arch/openrisc/lib/memset.S | 98 ++++++++++++ scripts/checkstack.pl | 3 + 26 files changed, 1244 insertions(+), 187 deletions(-) create mode 100644 arch/openrisc/include/asm/atomic.h create mode 100644 arch/openrisc/include/asm/bitops/atomic.h create mode 100644 arch/openrisc/include/asm/cmpxchg.h create mode 100644 arch/openrisc/include/asm/futex.h create mode 100644 arch/openrisc/include/asm/spinlock_types.h create mode 100644 arch/openrisc/include/asm/string.h create mode 100644 arch/openrisc/kernel/.gitignore create mode 100644 arch/openrisc/lib/memcpy.c create mode 100644 arch/openrisc/lib/memset.S -- 2.9.3
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[PATCH v2 00/23] OpenRISC patches from backlog for 4.11 Stafford Horne <shorne@gmail.com> - 2017-02-03 16:50 +0100 [PATCH v2 07/23] openrisc: add atomic bitops Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 06/23] openrisc: add l.lwa/l.swa emulation Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 09/23] openrisc: add optimized atomic operations Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 12/23] openrisc: remove unnecessary stddef.h include Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 23/23] arch/openrisc/lib/memcpy.c: use correct OR1200 option Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 10/23] openrisc: add spinlock implementation Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 21/23] openrisc: entry: Fix delay slot detection Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 17/23] openrisc: Add .gitignore Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 04/23] openrisc: head: use THREAD_SIZE instead of magic constant Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 15/23] openrisc: Add optimized memset Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 20/23] openrisc: entry: Whitespace and comment cleanups Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 22/23] openrisc: head: Move init strings to rodata section Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 05/23] openrisc: head: refactor out tlb flush into it's own function Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 03/23] openrisc: tlb miss handler optimizations Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 11/23] openrisc: add futex_atomic_* implementations Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 14/23] openrisc: Initial support for the idle state Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100 [PATCH v2 19/23] scripts/checkstack.pl: Add openrisc support Stafford Horne <shorne@gmail.com> - 2017-02-03 17:00 +0100
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