[Intel-gfx] [RFC 00/14] Introduce Intel PXP

[Lionel Landwerlin]

I just gave a try to this new iteration and it's apparently failing to 
enable PXP on a machine with this pciID : 0x9a68.

-Lionel

On 06/02/2021 04:09, Daniele Ceraolo Spurio wrote:
> PXP (Protected Xe Path) is an i915 component, available on
> GEN12+, that helps to establish the hardware protected session
> and manage the status of the alive software session, as well
> as its life cycle.
>
> I'm taking over this series from Sean. I've significantly reworked the
> code since his last revisioni [1], including a different patch split, so
> I've reset the series revision count. I believe I've addressed most of
> the pending comments, but please point out aything I've missed.
>
> Still RFC for 2 reasons:
> - mutex usage needs a bit more reworking
> - very lightly tested
>
> [1] https://patchwork.freedesktop.org/series/84620/
>
> Cc: Huang Sean Z <sean.z.huang at intel.com>
> Cc: Gaurav Kumar <kumar.gaurav at intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
>
> Anshuman Gupta (1):
>    drm/i915/pxp: Add plane decryption support
>
> Bommu Krishnaiah (2):
>    drm/i915/uapi: introduce drm_i915_gem_create_ext
>    drm/i915/pxp: User interface for Protected buffer
>
> Daniele Ceraolo Spurio (5):
>    drm/i915/pxp: Define PXP component interface
>    drm/i915/pxp: define PXP device flag and kconfig
>    drm/i915/pxp: allocate a vcs context for pxp usage
>    drm/i915/pxp: set KCR reg init during the boot time
>    drm/i915/pxp: enable PXP for integrated Gen12
>
> Huang, Sean Z (5):
>    drm/i915/pxp: Implement funcs to create the TEE channel
>    drm/i915/pxp: Create the arbitrary session after boot
>    drm/i915/pxp: Implement arb session teardown
>    drm/i915/pxp: Implement PXP irq handler
>    drm/i915/pxp: Enable PXP power management
>
> Vitaly Lubart (1):
>    mei: pxp: export pavp client to me client bus
>
>   drivers/gpu/drm/i915/Kconfig                  |  11 +
>   drivers/gpu/drm/i915/Makefile                 |   9 +
>   drivers/gpu/drm/i915/display/intel_sprite.c   |  21 +-
>   drivers/gpu/drm/i915/gem/i915_gem_context.c   |  34 +++
>   drivers/gpu/drm/i915/gem/i915_gem_context.h   |   6 +
>   .../gpu/drm/i915/gem/i915_gem_context_types.h |   1 +
>   drivers/gpu/drm/i915/gem/i915_gem_create.c    |  68 +++++-
>   .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |   9 +
>   .../gpu/drm/i915/gem/i915_gem_object_types.h  |   5 +
>   drivers/gpu/drm/i915/gt/intel_gt.c            |   5 +
>   drivers/gpu/drm/i915/gt/intel_gt_irq.c        |   7 +
>   drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   6 +
>   drivers/gpu/drm/i915/gt/intel_gt_types.h      |   3 +
>   drivers/gpu/drm/i915/i915_drv.c               |   7 +-
>   drivers/gpu/drm/i915/i915_drv.h               |  10 +
>   drivers/gpu/drm/i915/i915_pci.c               |   2 +
>   drivers/gpu/drm/i915/i915_reg.h               |   2 +
>   drivers/gpu/drm/i915/intel_device_info.h      |   1 +
>   drivers/gpu/drm/i915/pxp/intel_pxp.c          | 107 ++++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp.h          |  54 ++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c      | 227 +++++++++++++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h      |  15 ++
>   drivers/gpu/drm/i915/pxp/intel_pxp_irq.c      | 147 +++++++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_irq.h      |  33 +++
>   drivers/gpu/drm/i915/pxp/intel_pxp_pm.c       |  94 +++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_pm.h       |  36 +++
>   drivers/gpu/drm/i915/pxp/intel_pxp_session.c  | 123 ++++++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_session.h  |  17 ++
>   drivers/gpu/drm/i915/pxp/intel_pxp_tee.c      | 200 +++++++++++++++
>   drivers/gpu/drm/i915/pxp/intel_pxp_tee.h      |  17 ++
>   drivers/gpu/drm/i915/pxp/intel_pxp_types.h    |  29 +++
>   drivers/misc/mei/Kconfig                      |   2 +
>   drivers/misc/mei/Makefile                     |   1 +
>   drivers/misc/mei/pxp/Kconfig                  |  13 +
>   drivers/misc/mei/pxp/Makefile                 |   7 +
>   drivers/misc/mei/pxp/mei_pxp.c                | 230 ++++++++++++++++++
>   drivers/misc/mei/pxp/mei_pxp.h                |  18 ++
>   include/drm/i915_component.h                  |   1 +
>   include/drm/i915_pxp_tee_interface.h          |  45 ++++
>   include/uapi/drm/i915_drm.h                   |  70 ++++++
>   40 files changed, 1685 insertions(+), 8 deletions(-)
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_irq.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_irq.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_pm.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_pm.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_session.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_session.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_tee.h
>   create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_types.h
>   create mode 100644 drivers/misc/mei/pxp/Kconfig
>   create mode 100644 drivers/misc/mei/pxp/Makefile
>   create mode 100644 drivers/misc/mei/pxp/mei_pxp.c
>   create mode 100644 drivers/misc/mei/pxp/mei_pxp.h
>   create mode 100644 include/drm/i915_pxp_tee_interface.h
>