Re: [PATCH v2 0/6] powerpc: use jump label for {cpu,mmu}_has_feature()

2015-08-25 Thread Ingo Molnar 

* Kevin Hao haoke...@gmail.com wrote:

 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

Looks good to me!

Thanks,

Ingo
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[PATCH v2 0/6] powerpc: use jump label for {cpu,mmu}_has_feature()

2015-08-24 Thread Kevin Hao 
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

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