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Date:   Fri,  6 Oct 2017 19:28:00 -0700
From:   Sukadev Bhattiprolu <>
To:     Michael Ellerman <>
Cc:     Benjamin Herrenschmidt <>,,,,, <>
Subject: [PATCH v2 00/18] powerpc/vas: Add support for FTW 

The first 10 patches in this set were posted earlier[1] and don't have
any significant changes since then. This set sanitizes cpu/chip id to
VAS id mapping, improves vas_win_close() performance and adds a check
for return of credits and cleans up some code.

Patch 11 adds debugfs support for the VAS window contexts.

Patches 11-18 add support for user space aka Fast thread-wakeup windows
in VAS. These include a patch from Michael Neuling to support emulating
the paste instruction.

Michael Neuling (1):
  powerpc: Emulate paste instruction

Sukadev Bhattiprolu (17):
  powerpc/vas: init missing fields from [rt]xattr
  powerpc/vas: Validate window credits
  powerpc/vas: Cleanup some debug code
  powerpc/vas: Drop poll_window_cast_out().
  powerpc/vas: Use helper to unpin/close window
  powerpc/vas: Reduce polling interval for busy state
  powerpc/vas: Save configured window credits
  powerpc/vas: poll for return of window credits
  powerpc/vas: Create cpu to vas id mapping
  powerpc/vas, nx-842: Define and use chip_to_vas_id()
  powerpc/vas: Export HVWC to debugfs
  powerpc: have copy depend on CONFIG_BOOK3S_64
  powerpc: Add support for setting SPRN_TIDR
  powerpc: Define set_thread_used_vas()
  powerpc/vas: Define vas_win_paste_addr()
  powerpc/vas: Define vas_win_id()
  powerpc/vas: Add support for user receive window

 arch/powerpc/include/asm/emulated_ops.h     |   1 +
 arch/powerpc/include/asm/ppc-opcode.h       |   1 +
 arch/powerpc/include/asm/processor.h        |   3 +
 arch/powerpc/include/asm/reg.h              |   2 +
 arch/powerpc/include/asm/switch_to.h        |   5 +
 arch/powerpc/include/asm/vas.h              |  21 +++
 arch/powerpc/kernel/process.c               | 160 ++++++++++++++++--
 arch/powerpc/kernel/traps.c                 |  64 ++++++++
 arch/powerpc/platforms/powernv/Makefile     |   3 +-
 arch/powerpc/platforms/powernv/vas-debug.c  | 209 ++++++++++++++++++++++++
 arch/powerpc/platforms/powernv/vas-window.c | 245 +++++++++++++++++++++++-----
 arch/powerpc/platforms/powernv/vas.c        |  31 +++-
 arch/powerpc/platforms/powernv/vas.h        |  95 ++++++-----
 drivers/crypto/nx/nx-842-powernv.c          |  18 +-
 14 files changed, 745 insertions(+), 113 deletions(-)
 create mode 100644 arch/powerpc/platforms/powernv/vas-debug.c


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