[v4,0/2] Introduce multitile support

Message

Andi Shyti Jan. 17, 2022, 7:32 p.m. UTC

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 136 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  32 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 392 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 17 files changed, 781 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h