[00/20] GSC support for XeHP SDV and DG2 platforms

Message

Alexander Usyskin April 7, 2022, 12:58 p.m. UTC

Add GSC support for XeHP SDV and DG2 platforms.

The series includes changes for the mei driver:
- add ability to use polling instead of interrupts
- add ability to use extended timeouts
- setup extended operational memory for GSC

The series includes changes for the i915 driver:
- allocate extended operational memory for GSC
- GSC on XeHP SDV offsets and definitions
- GSC on DG2 offsets and definitions

The first six patches of the series are copied from the
already reviewed series [1] to provide series that
can be built in CI.
This series will be rebased and merged only after
series [1] merge.

Greg KH, please review and ACK the MEI patches.
We are pushing these patches through gfx tree as
the auxiliary device belongs there.

[1] https://patchwork.freedesktop.org/series/102160/

Alexander Usyskin (7):
  mei: gsc: setup char driver alive in spite of firmware handshake
    failure
  mei: gsc: retrieve the firmware version
  drm/i915/gsc: add slow_fw flag to the mei auxiliary device
  drm/i915/gsc: add slow_fw flag to the gsc device definition
  drm/i915/gsc: add GSC XeHP SDV platform definition
  mei: gsc: wait for reset thread on stop
  mei: extend timeouts on slow devices.

Daniele Ceraolo Spurio (1):
  HAX: drm/i915: force INTEL_MEI_GSC on for CI

Tomas Winkler (9):
  drm/i915/gsc: add gsc as a mei auxiliary device
  mei: add support for graphics system controller (gsc) devices
  mei: gsc: add runtime pm handlers
  mei: gsc: use polling instead of interrupts
  drm/i915/dg2: add gsc with special gsc bar offsets
  mei: mkhi: add memory ready command
  mei: gsc: setup gsc extended operational memory
  mei: debugfs: add pxp mode to devstate in debugfs
  drm/i915/gsc: allocate extended operational memory in LMEM

Vitaly Lubart (3):
  drm/i915/gsc: skip irq initialization if using polling
  mei: bus: export common mkhi definitions into a separate header
  mei: gsc: add transition to PXP mode in resume flow

 MAINTAINERS                              |   1 +
 drivers/gpu/drm/i915/Kconfig             |   1 +
 drivers/gpu/drm/i915/Kconfig.debug       |   1 +
 drivers/gpu/drm/i915/Makefile            |   3 +
 drivers/gpu/drm/i915/gt/intel_gsc.c      | 323 +++++++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gsc.h      |  40 +++
 drivers/gpu/drm/i915/gt/intel_gt.c       |   3 +
 drivers/gpu/drm/i915/gt/intel_gt.h       |   5 +
 drivers/gpu/drm/i915/gt/intel_gt_irq.c   |  13 +
 drivers/gpu/drm/i915/gt/intel_gt_regs.h  |   1 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h |   2 +
 drivers/gpu/drm/i915/i915_drv.h          |   8 +
 drivers/gpu/drm/i915/i915_pci.c          |   4 +-
 drivers/gpu/drm/i915/i915_reg.h          |   4 +
 drivers/gpu/drm/i915/intel_device_info.h |   2 +
 drivers/misc/mei/Kconfig                 |  14 +
 drivers/misc/mei/Makefile                |   3 +
 drivers/misc/mei/bus-fixup.c             | 128 ++++++---
 drivers/misc/mei/client.c                |  14 +-
 drivers/misc/mei/debugfs.c               |  17 ++
 drivers/misc/mei/gsc-me.c                | 316 ++++++++++++++++++++++
 drivers/misc/mei/hbm.c                   |  12 +-
 drivers/misc/mei/hw-me-regs.h            |   7 +
 drivers/misc/mei/hw-me.c                 | 145 ++++++++--
 drivers/misc/mei/hw-me.h                 |  16 +-
 drivers/misc/mei/hw-txe.c                |   2 +-
 drivers/misc/mei/hw.h                    |   5 +
 drivers/misc/mei/init.c                  |  21 +-
 drivers/misc/mei/main.c                  |   2 +-
 drivers/misc/mei/mei_dev.h               |  26 ++
 drivers/misc/mei/mkhi.h                  |  57 ++++
 drivers/misc/mei/pci-me.c                |   2 +-
 include/linux/mei_aux.h                  |  21 ++
 33 files changed, 1146 insertions(+), 73 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gsc.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gsc.h
 create mode 100644 drivers/misc/mei/gsc-me.c
 create mode 100644 drivers/misc/mei/mkhi.h
 create mode 100644 include/linux/mei_aux.h