[PATCH 0/4] initial NOHZ_FULL support for tile

From: cmetcalf
Date: Tue Mar 24 2015 - 15:22:11 EST


From: Chris Metcalf <cmetcalf@xxxxxxxxxx>

These changes are the necessary minimum to make the tile architecture
work relatively well with NOHZ_FULL. The tile architecture has had
out-of-tree support since 2008 for a DATAPLANE mode that provided
similar functionality (called Zero-Overhead Linux in our marketing
materials); we are now in the process of layering that on top of the
community NOHZ_FULL to upstream it.

Chris Metcalf (4):
tile: support arch_irq_work_raise
tile: support CONTEXT_TRACKING and thus NOHZ_FULL
nohz: add tick_nohz_full_clear_cpus() API
net: tile: don't send interrupts to nohz cores by default

arch/tile/Kconfig | 1 +
arch/tile/include/asm/Kbuild | 1 -
arch/tile/include/asm/irq_work.h | 14 ++++++++++++++
arch/tile/include/asm/smp.h | 1 +
arch/tile/include/asm/thread_info.h | 9 ++++++---
arch/tile/kernel/process.c | 12 ++++++++----
arch/tile/kernel/ptrace.c | 22 ++++++++++++++++++++--
arch/tile/kernel/single_step.c | 3 +++
arch/tile/kernel/smp.c | 32 +++++++++++++++++++++++++++++++-
arch/tile/kernel/traps.c | 16 +++++++++-------
arch/tile/kernel/unaligned.c | 22 +++++++++++++---------
arch/tile/mm/fault.c | 10 +++++++---
drivers/net/ethernet/tile/tilegx.c | 5 ++++-
include/linux/tick.h | 7 +++++++
14 files changed, 124 insertions(+), 31 deletions(-)
create mode 100644 arch/tile/include/asm/irq_work.h

--
2.1.2

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