diff options
| author | Alan Previn <alan.previn.teres.alexis@intel.com> | 2023-05-12 02:17:37 +0300 |
|---|---|---|
| committer | Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2023-05-12 03:26:31 +0300 |
| commit | 9e134ed720b6e69a5c857743daedd403101ca078 (patch) | |
| tree | f0cfcb10398af303dee6a3847b54731f7671bb0b /drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | |
| parent | d1da138f245d4fb46b21d2ddb19504a2831d813f (diff) | |
| download | linux-9e134ed720b6e69a5c857743daedd403101ca078.tar.xz | |
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
Diffstat (limited to 'drivers/gpu/drm/i915/pxp/intel_pxp_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c index 4f836b317424..1a04067f61fc 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -43,8 +43,9 @@ void intel_pxp_resume_complete(struct intel_pxp *pxp) * The PXP component gets automatically unbound when we go into S3 and * re-bound after we come out, so in that scenario we can defer the * hw init to the bind call. + * NOTE: GSC-CS backend doesn't rely on components. */ - if (!pxp->pxp_component) + if (!HAS_ENGINE(pxp->ctrl_gt, GSC0) && !pxp->pxp_component) return; intel_pxp_init_hw(pxp); |