On 04/28/2016 06:55 AM, Pan Xinhui wrote:
From: Pan Xinhui<xinhui.pan@xxxxxxxxxxxxxxxxxx> This patch aims to enable qspinlock on PPC. And on pseries platform, it also support paravirt qspinlock. Signed-off-by: Pan Xinhui<xinhui.pan@xxxxxxxxxxxxxxxxxx> --- arch/powerpc/include/asm/qspinlock.h | 37 +++++++++++++++ arch/powerpc/include/asm/qspinlock_paravirt.h | 36 +++++++++++++++ .../powerpc/include/asm/qspinlock_paravirt_types.h | 13 ++++++ arch/powerpc/include/asm/spinlock.h | 31 ++++++++----- arch/powerpc/include/asm/spinlock_types.h | 4 ++ arch/powerpc/kernel/paravirt.c | 52 ++++++++++++++++++++++ arch/powerpc/lib/locks.c | 32 +++++++++++++ arch/powerpc/platforms/pseries/setup.c | 5 +++ 8 files changed, 198 insertions(+), 12 deletions(-) create mode 100644 arch/powerpc/include/asm/qspinlock.h create mode 100644 arch/powerpc/include/asm/qspinlock_paravirt.h create mode 100644 arch/powerpc/include/asm/qspinlock_paravirt_types.h create mode 100644 arch/powerpc/kernel/paravirt.c
This is just an enablement patch. You will also need a patch to activate qspinlock for, at lease, some PPC configs. Right?
It has dependency on the pv_wait() patch that I sent out extend the parameter list. Some performance data on how PPC system will perform with and without qspinlock will also be helpful data points.
Cheers, Longman _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
