[PATCH v2 0/9] Introduce Xe PCIe FLR

[Raag Jadav <raag.jadav@intel.com>]

Here's my humble attempt at introducing PCIe Function Level Reset (FLR)
support in xe driver. This is ofcourse a half baked implementation and
only limited to reloading GT. This needs to be extended for a lot of
different components which I've skipped here for my lack of competence,
so feel free to join in and support them.

PS: All xe_exec_basic tests and clpeak run smoothly after FLR. Give it
a spin and let me know if any regressions.

Trigger it with:

$ echo 1 > /sys/bus/pci/devices/<BDF>/reset

v2: Re-initialize migrate context (Matthew Brost)
    Add kernel doc (Matthew Brost)
    Spell out Function Level Reset (Jani)

Raag Jadav (9):
  drm/xe/uc_fw: Allow re-initializing firmware
  drm/xe/gt: Introduce FLR helpers
  drm/xe/irq: Introduce xe_irq_disable()
  drm/xe: Introduce xe_device_assert_lmem_ready()
  drm/xe/bo_evict: Introduce xe_bo_restore_map()
  drm/xe/lrc: Introduce xe_lrc_reinit()
  drm/xe/exec_queue: Introduce xe_exec_queue_reinit()
  drm/xe/migrate: Introduce xe_migrate_reinit()
  drm/xe/pci: Introduce PCIe FLR

 drivers/gpu/drm/xe/Makefile        |   1 +
 drivers/gpu/drm/xe/xe_bo_evict.c   |  51 ++++++++--
 drivers/gpu/drm/xe/xe_bo_evict.h   |   2 +
 drivers/gpu/drm/xe/xe_device.c     |  10 +-
 drivers/gpu/drm/xe/xe_device.h     |   1 +
 drivers/gpu/drm/xe/xe_exec_queue.c |  34 ++++++-
 drivers/gpu/drm/xe/xe_exec_queue.h |   1 +
 drivers/gpu/drm/xe/xe_gsc.c        |  14 +++
 drivers/gpu/drm/xe/xe_gsc.h        |   1 +
 drivers/gpu/drm/xe/xe_gt.c         |  32 ++++++
 drivers/gpu/drm/xe/xe_gt.h         |   2 +
 drivers/gpu/drm/xe/xe_guc.c        |  14 +++
 drivers/gpu/drm/xe/xe_guc.h        |   1 +
 drivers/gpu/drm/xe/xe_huc.c        |  14 +++
 drivers/gpu/drm/xe/xe_huc.h        |   1 +
 drivers/gpu/drm/xe/xe_irq.c        |  13 ++-
 drivers/gpu/drm/xe/xe_irq.h        |   1 +
 drivers/gpu/drm/xe/xe_lrc.c        | 149 ++++++++++++++++------------
 drivers/gpu/drm/xe/xe_lrc.h        |   2 +
 drivers/gpu/drm/xe/xe_migrate.c    |  65 ++++++++++---
 drivers/gpu/drm/xe/xe_migrate.h    |   1 +
 drivers/gpu/drm/xe/xe_pci.c        |   1 +
 drivers/gpu/drm/xe/xe_pci.h        |   2 +
 drivers/gpu/drm/xe/xe_pci_err.c    | 150 +++++++++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_uc.c         |  36 +++++++
 drivers/gpu/drm/xe/xe_uc.h         |   2 +
 drivers/gpu/drm/xe/xe_uc_fw.c      |  39 ++++++--
 drivers/gpu/drm/xe/xe_uc_fw.h      |   1 +
 28 files changed, 544 insertions(+), 97 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_pci_err.c

-- 
2.43.0