[PATCH v4 0/3] MSI-X support

[Ilia Levi <ilia.levi@intel.com>]

This patch set introduces MSI-X workflow.
This is a rework of previously published series 135422
(https://patchwork.freedesktop.org/series/135422/).

It includes:
1. Basic MSI-X workflow with GuC-to-host and "default MSI-X"
   interrupt handlers.
2. MSI-X interrupts allocator to allow dynamic resource management.
3. uAPI flag to xe_exec_queue_create_ioctl that allows creating
   an exec queue with its own MSI-X interrupt.


v2: Rebase + fix kernel doc issue
v3: Rebase + fix sriov_basic test failure
v4: Another attempt to fix sriov flows

Dani Liberman (1):
  drm/xe/uapi: Support requesting unique MSI-X for exec queue

Ilia Levi (2):
  drm/xe: Initial MSI-X support for HW engines
  drm/xe: Manage MSI-X interrupts allocation

 drivers/gpu/drm/xe/Makefile              |   1 +
 drivers/gpu/drm/xe/regs/xe_engine_regs.h |   3 +
 drivers/gpu/drm/xe/regs/xe_lrc_layout.h  |   3 +
 drivers/gpu/drm/xe/xe_device.c           |   4 +
 drivers/gpu/drm/xe/xe_device.h           |   3 +-
 drivers/gpu/drm/xe/xe_device_types.h     |  12 ++
 drivers/gpu/drm/xe/xe_exec_queue.c       |  59 ++++++-
 drivers/gpu/drm/xe/xe_exec_queue_types.h |   4 +
 drivers/gpu/drm/xe/xe_execlist.c         |   9 +-
 drivers/gpu/drm/xe/xe_hw_engine.c        |   7 +-
 drivers/gpu/drm/xe/xe_irq.c              | 116 ++++++++----
 drivers/gpu/drm/xe/xe_irq.h              |   1 +
 drivers/gpu/drm/xe/xe_irq_msix.c         | 216 +++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_irq_msix.h         |  22 +++
 drivers/gpu/drm/xe/xe_lrc.c              |  24 ++-
 drivers/gpu/drm/xe/xe_lrc.h              |   2 +-
 include/uapi/drm/xe_drm.h                |   8 +-
 17 files changed, 444 insertions(+), 50 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_irq_msix.c
 create mode 100644 drivers/gpu/drm/xe/xe_irq_msix.h

-- 
2.43.2