Messages in this thread | | | From | Stafford Horne <> | Subject | [PATCH v3 00/25] OpenRISC patches for 4.11 final call | Date | Wed, 22 Feb 2017 04:11:29 +0900 |
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Hi All,
Changes from v2 o implemented all atomic ops pointed out by Peter Z o export ioremap symbols pointed out by allyesconfig o init r0 to 0 as per openrisc spec, suggested by Jakob Viketoft
Changes from v1 o added change set from Valentin catching CONFIG issues o added missing test_and_change_bit atomic bitops patch
This is a attempt to get some final comments before I send the pull request for this merge windot to Linus. This comes up due to last minute findings by Peter Zijlstra with the atomic operations patch. If I get a bunch of Nak's I will likely just skip this merge window, but lets hope that can be avoided.
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. I have mainly done the tests on qemu.
Note for testers: The l.swa and l.lwa emulation + native instruction support is NOW FIXED in qemu upstream git.
I have send patches for get a recent openrisc toolchain added to the lkp-tests make.cross script. It should be up to date now I believe this is what most build sytems use. Let me know if different.
-Stafford
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 (9): 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 openrisc: Export ioremap symbols used by modules openrisc: head: Init r0 to 0 on start
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 | 100 +++++++++++++ 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 | 200 ++++++++++--------------- 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 ++++++++++++ arch/openrisc/mm/ioremap.c | 2 + scripts/checkstack.pl | 3 + 27 files changed, 1297 insertions(+), 188 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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