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drm/i915/pxp: allocate a vcs context for pxp usage

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The context is required to send the session termination commands to the
VCS, which will be implemented in a follow-up patch. We can also use the
presence of the context as a check of pxp initialization completion.

v2: use perma-pinned context (Chris)
v3: rename pinned_context functions (Chris)
v4: split export of pinned_context functions to a separate patch (Rodrigo)
v10: remove inclusion of intel_gt_types.h from intel_pxp.h (Jani)
v13: fixed for loop pointer dereference (Vinay)

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924191452.1539378-5-alan.previn.teres.alexis@intel.com
This commit is contained in:
Daniele Ceraolo Spurio 2021-09-24 12:14:39 -07:00 • committed by Rodrigo Vivi
commit 3ad2dd9c4c
7 changed files with 131 additions and 0 deletions
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