From: Kevin Hao <haokexin@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/6] powerpc: use jump label for {cpu,mmu}_has_feature()
Date: Mon, 24 Aug 2015 19:20:22 +0800 [thread overview]
Message-ID: <1440415228-8006-1-git-send-email-haokexin@gmail.com> (raw)
Hi,
v2:
Drop the following two patches as suggested by Ingo and Peter:
jump_label: no need to acquire the jump_label_mutex in jump_lable_init()
jump_label: introduce DEFINE_STATIC_KEY_{TRUE,FALSE}_ARRAY macros
v1:
I have tried to change the {cpu,mmu}_has_feature() to use jump label two yeas
ago [1]. But that codes seem a bit ugly. This is a reimplementation by moving the
jump_label_init() much earlier so the jump label can be used in a very earlier
stage. Boot test on p4080ds, t2080rdb and powermac (qemu). This patch series
is against linux-next.
[1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-September/111026.html
Kevin Hao (6):
jump_label: make it possible for the archs to invoke jump_label_init()
much earlier
powerpc: invoke jump_label_init() in a much earlier stage
powerpc: kill mfvtb()
powerpc: move the cpu_has_feature to a separate file
powerpc: use the jump label for cpu_has_feature
powerpc: use jump label for mmu_has_feature
arch/powerpc/include/asm/cacheflush.h | 1 +
arch/powerpc/include/asm/cpufeatures.h | 34 ++++++++++++++++++++++++++++++
arch/powerpc/include/asm/cputable.h | 16 +++++++-------
arch/powerpc/include/asm/cputime.h | 1 +
arch/powerpc/include/asm/dbell.h | 1 +
arch/powerpc/include/asm/dcr-native.h | 1 +
arch/powerpc/include/asm/mman.h | 1 +
arch/powerpc/include/asm/mmu.h | 29 ++++++++++++++++++++++++++
arch/powerpc/include/asm/reg.h | 9 --------
arch/powerpc/include/asm/time.h | 3 ++-
arch/powerpc/include/asm/xor.h | 1 +
arch/powerpc/kernel/align.c | 1 +
arch/powerpc/kernel/cputable.c | 37 +++++++++++++++++++++++++++++++++
arch/powerpc/kernel/irq.c | 1 +
arch/powerpc/kernel/process.c | 1 +
arch/powerpc/kernel/setup-common.c | 1 +
arch/powerpc/kernel/setup_32.c | 5 +++++
arch/powerpc/kernel/setup_64.c | 4 ++++
arch/powerpc/kernel/smp.c | 1 +
arch/powerpc/platforms/cell/pervasive.c | 1 +
arch/powerpc/xmon/ppc-dis.c | 1 +
kernel/jump_label.c | 3 +++
22 files changed, 135 insertions(+), 18 deletions(-)
create mode 100644 arch/powerpc/include/asm/cpufeatures.h
--
2.1.0
next reply other threads:[~2015-08-24 11:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-24 11:20 Kevin Hao [this message]
2015-08-24 11:20 ` [PATCH v2 1/6] jump_label: make it possible for the archs to invoke jump_label_init() much earlier Kevin Hao
2015-08-24 11:20 ` [PATCH v2 2/6] powerpc: invoke jump_label_init() in a much earlier stage Kevin Hao
2015-08-24 11:20 ` [PATCH v2 3/6] powerpc: kill mfvtb() Kevin Hao
2015-09-07 9:29 ` [v2,3/6] " Michael Ellerman
2015-09-08 2:59 ` Kevin Hao
2015-08-24 11:20 ` [PATCH v2 4/6] powerpc: move the cpu_has_feature to a separate file Kevin Hao
2015-08-24 11:20 ` [PATCH v2 5/6] powerpc: use the jump label for cpu_has_feature Kevin Hao
2015-08-24 11:20 ` [PATCH v2 6/6] powerpc: use jump label for mmu_has_feature Kevin Hao
2015-08-25 8:23 ` [PATCH v2 0/6] powerpc: use jump label for {cpu,mmu}_has_feature() Ingo Molnar
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