[Intel-gfx] [PATCH v2 00/15] Execlist based Engine reset and recovery

[Arun Siluvery]

This series is to add Engine reset support (aka TDR - Timeout detection and
recovery) to i915. This is supported from Gen8 onwards and this is the
implementation with Execlist submission.

Upstream effort was originally started by Tomas Elf, now I am cotinuing it.

These patches are based on current nightly. TDR makes some changes to
wait_request path and there are some patches on the list which are
improving that path but may take some time before they get merged, these
paches need to updated accordingly if they get merged soon.

This is mainly a rebase of previous version [1].

[1] https://lists.freedesktop.org/archives/intel-gfx/2016-April/092349.html

Arun Siluvery (13):
  drm/i915: Update i915.reset to handle engine resets
  drm/i915/tdr: Extend the idea of reset_counter to engine reset
  drm/i915/tdr: Modify error handler for per engine hang recovery
  drm/i915/tdr: Prepare execlist submission to handle tdr resubmission
    after reset
  drm/i915/tdr: Capture engine state before reset
  drm/i915/tdr: Restore engine state and start after reset
  drm/i915/tdr: Add support for per engine reset recovery
  drm/i915: Extending i915_gem_check_wedge to check engine reset in
    progress
  drm/i915: Port of Added scheduler support to __wait_request() calls
  drm/i915/tdr: Add engine reset count to error state
  drm/i915/tdr: Export reset count info to debugfs
  drm/i915/tdr: Enable Engine reset and recovery support
  drm/i915: Disable GuC submission for testing Engine reset patches

Mika Kuoppala (1):
  drm/i915: Skip reset request if there is one already

Tomas Elf (1):
  drm/i915: Reinstate hang recovery work queue.

 drivers/gpu/drm/i915/i915_debugfs.c     |  33 +++++
 drivers/gpu/drm/i915/i915_dma.c         |   1 +
 drivers/gpu/drm/i915/i915_drv.c         |  73 ++++++++++
 drivers/gpu/drm/i915/i915_drv.h         |  34 ++++-
 drivers/gpu/drm/i915/i915_gem.c         |  79 ++++++++---
 drivers/gpu/drm/i915/i915_gpu_error.c   |   3 +
 drivers/gpu/drm/i915/i915_irq.c         | 231 +++++++++++++++++++++++++-------
 drivers/gpu/drm/i915/i915_params.c      |  10 +-
 drivers/gpu/drm/i915/i915_params.h      |   2 +-
 drivers/gpu/drm/i915/intel_display.c    |   5 +-
 drivers/gpu/drm/i915/intel_lrc.c        | 210 +++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_lrc.h        |   3 +
 drivers/gpu/drm/i915/intel_ringbuffer.c |   8 +-
 drivers/gpu/drm/i915/intel_ringbuffer.h |  19 +++
 drivers/gpu/drm/i915/intel_uncore.c     |  49 ++++++-
 15 files changed, 667 insertions(+), 93 deletions(-)

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1.9.1