Yes, this should not be problem since MESA is already using MI_SET_APPID with app_id 0xf. I proposed this earlier but I was told that MESA team will not be comfortable in querying app_id or session_states. Although check for proper session_state should be part of context robustness check. -----Original Message----- From: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx> Sent: Saturday, January 23, 2021 6:19 AM To: Huang, Sean Z <sean.z.huang@xxxxxxxxx>; Intel-gfx@xxxxxxxxxxxxxxxxxxxxx Cc: Gaurav, Kumar <kumar.gaurav@xxxxxxxxx>; Lahtinen, Joonas <joonas.lahtinen@xxxxxxxxx>; Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>; Ekstrand, Jason <jason.ekstrand@xxxxxxxxx> Subject: Re: [RFC-v23 00/13] Introduce Intel PXP component - Mesa single session Hi, One of the thing that came up during UMD review is that the default session ID is actually uAPI : https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8064#note_776201 Could we expose it through a get_param on the context? Thanks, -Lionel On 19/01/2021 09:43, Huang, Sean Z 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. > > This patch series is to allow the kernel space to create and manage a > single hardware session (a.k.a. default session or arbitrary session). > So user can allocate the protected buffer, which is encrypted with the > leverage of the arbitrary hardware session. > > > rev23: > #09, #12 > - Require user space to explicitly set recoverable flag to > false for protected context creation. > > #13 > - Add Cc of reviewers in commit message. > > > 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 > > Huang, Sean Z (9): > drm/i915/pxp: Introduce Intel PXP component > drm/i915/pxp: set KCR reg init during the boot time > drm/i915/pxp: Implement funcs to create the TEE channel > drm/i915/pxp: Create the arbitrary session after boot > drm/i915/pxp: Func to send hardware session termination > drm/i915/pxp: Enable PXP irq worker and callback stub > drm/i915/pxp: Destroy arb session upon teardown > drm/i915/pxp: Enable PXP power management > drm/i915/pxp: Expose session state for display protection flip > > Vitaly Lubart (1): > mei: pxp: export pavp client to me client bus > > drivers/gpu/drm/i915/Kconfig | 21 ++ > drivers/gpu/drm/i915/Makefile | 9 + > drivers/gpu/drm/i915/display/intel_sprite.c | 21 +- > drivers/gpu/drm/i915/gem/i915_gem_context.c | 13 + > drivers/gpu/drm/i915/gem/i915_gem_context.h | 5 + > .../gpu/drm/i915/gem/i915_gem_context_types.h | 2 + > drivers/gpu/drm/i915/gem/i915_gem_create.c | 68 +++++- > .../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 | 14 ++ > drivers/gpu/drm/i915/gt/intel_gt_pm.c | 4 + > 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 | 6 + > drivers/gpu/drm/i915/i915_reg.h | 2 + > drivers/gpu/drm/i915/pxp/intel_pxp.c | 193 +++++++++++++++ > drivers/gpu/drm/i915/pxp/intel_pxp.h | 70 ++++++ > drivers/gpu/drm/i915/pxp/intel_pxp_arb.c | 208 ++++++++++++++++ > drivers/gpu/drm/i915/pxp/intel_pxp_arb.h | 17 ++ > drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 223 +++++++++++++++++ > drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h | 19 ++ > drivers/gpu/drm/i915/pxp/intel_pxp_context.c | 28 +++ > drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 15 ++ > drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 65 +++++ > drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 31 +++ > drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 202 +++++++++++++++ > drivers/gpu/drm/i915/pxp/intel_pxp_tee.h | 17 ++ > drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 38 +++ > 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 | 66 +++++ > 37 files changed, 1686 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_arb.c > create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_arb.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_context.c > create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_context.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_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 > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
