]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915/pxp: On MTL, KCR enabling doesn't wait on tee component
authorAlan Previn <alan.previn.teres.alexis@intel.com>
Thu, 11 May 2023 23:17:37 +0000 (16:17 -0700)
committerRadhakrishna Sripada <radhakrishna.sripada@intel.com>
Fri, 12 May 2023 00:26:31 +0000 (17:26 -0700)
commit9e134ed720b6e69a5c857743daedd403101ca078
treef0cfcb10398af303dee6a3847b54731f7671bb0b
parentd1da138f245d4fb46b21d2ddb19504a2831d813f
drm/i915/pxp: On MTL, KCR enabling doesn't wait on tee component

On legacy platforms, KCR HW enabling is done at the time the mei
component interface is bound. It's also disabled during unbind.
However, for MTL onwards, we don't depend on a tee component
to start sending GSC-CS firmware messages.

Thus, immediately enable (or disable) KCR HW on PXP's init,
fini and resume.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511231738.1077674-8-alan.previn.teres.alexis@intel.com
drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
drivers/gpu/drm/i915/pxp/intel_pxp_pm.c