[v2,0/6] Gen8+ GPU Watchdog Reset Support

Message

Santa, Carlos Feb. 13, 2019, 2:43 a.m. UTC

This is a rebased on the original patch series from Michel Thierry
that can be found here:

https://patchwork.freedesktop.org/series/21868

Note that this series is only limited to the GPU Watchdog timeout
for execlists as it leaves out support
for GuC based submission for a later time.

PATCH v2 of this series was successfully tested from userspace
through an IGT test gem_watchdog --run-subtest basic-bsd1,
that test not in upstream yet.

Also, the changes on the i965 media userspace driver are currently
under review at

https://github.com/intel/intel-vaapi-driver/pull/429/files

The testbed used on this series included a SKL-based NUC with 
2 BSD rings as well as a KBL-based Chromebook with 1 BSD ring.

Michel Thierry (6):
  drm/i915: Add engine reset count in get-reset-stats ioctl
  drm/i915: Watchdog timeout: IRQ handler for gen8+
  drm/i915: Watchdog timeout: Ringbuffer command emission for gen8+
  drm/i915: Watchdog timeout: DRM kernel interface to set the timeout
  drm/i915: Watchdog timeout: Include threshold value in error state
  drm/i915: Watchdog timeout: Blindly trust watchdog timeout for reset?

 drivers/gpu/drm/i915/i915_drv.h         |  56 +++++++++
 drivers/gpu/drm/i915/i915_gem_context.c | 103 +++++++++++++++-
 drivers/gpu/drm/i915/i915_gem_context.h |   4 +
 drivers/gpu/drm/i915/i915_gpu_error.c   |  12 +-
 drivers/gpu/drm/i915/i915_gpu_error.h   |   5 +
 drivers/gpu/drm/i915/i915_irq.c         |  12 +-
 drivers/gpu/drm/i915/i915_reg.h         |   6 +
 drivers/gpu/drm/i915/intel_engine_cs.c  |   3 +
 drivers/gpu/drm/i915/intel_hangcheck.c  |  20 ++-
 drivers/gpu/drm/i915/intel_lrc.c        | 157 +++++++++++++++++++++++-
 drivers/gpu/drm/i915/intel_lrc.h        |   2 +
 drivers/gpu/drm/i915/intel_ringbuffer.h |  24 +++-
 include/uapi/drm/i915_drm.h             |   7 +-
 13 files changed, 391 insertions(+), 20 deletions(-)