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author | Anshuman Gupta <anshuman.gupta@intel.com> | 2021-09-24 22:14:48 +0300 |
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committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2021-10-04 20:11:16 +0300 |
commit | ef6ba31dd3840588418e70f4dd63ce6022e1a254 (patch) | |
tree | dd11eac66e79206833246a81f706c152e24163e2 /Documentation/gpu/i915.rst | |
parent | 0cfab4cb3c4e90c1c2f4b18c0b8ac4cb946808c8 (diff) | |
download | linux-ef6ba31dd3840588418e70f4dd63ce6022e1a254.tar.xz |
drm/i915/pxp: Add plane decryption support
Add support to enable/disable PLANE_SURF Decryption Request bit.
It requires only to enable plane decryption support when following
condition met.
1. PXP session is enabled.
2. Buffer object is protected.
v2:
- Used gen fb obj user_flags instead gem_object_metadata. [Krishna]
v3:
- intel_pxp_gem_object_status() API changes.
v4: use intel_pxp_is_active (Daniele)
v5: rebase and use the new protected object status checker (Daniele)
v6: used plane state for plane_decryption to handle async flip
as suggested by Ville.
v7: check pxp session while plane decrypt state computation. [Ville]
removed pointless code. [Ville]
v8 (Daniele): update PXP check
v9: move decrypt check after icl_check_nv12_planes() when overlays
have fb set (Juston)
v10 (Daniele): update PXP check again to match rework in earlier
patches and don't consider protection valid if the object has not
been used in an execbuf beforehand.
Cc: Bommu Krishnaiah <krishnaiah.bommu@intel.com>
Cc: Huang Sean Z <sean.z.huang@intel.com>
Cc: Gaurav Kumar <kumar.gaurav@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Juston Li <juston.li@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com> #v9
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924191452.1539378-14-alan.previn.teres.alexis@intel.com
Diffstat (limited to 'Documentation/gpu/i915.rst')
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