drm/i915/pxp: Add firmware status when ARB session fails

Add firmware status using a drm_warn when ARB session fails
or else a drm_dbg when the ARB session register slot bit did
get set.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Juston Li <justonli@chromium.org>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923064542.415252-2-alan.previn.teres.alexis@intel.com

diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index 92b00b4..19c330a 100644 (file)
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -77,6 +77,7 @@ static int pxp_create_arb_session(struct intel_pxp *pxp)
                drm_err(&gt->i915->drm, "arb session failed to go in play\n");
                return ret;
        }
+       drm_dbg(&gt->i915->drm, "PXP ARB session is alive\n");
 
        if (!++pxp->key_instance)
                ++pxp->key_instance;

diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
index 4b6f565..a909050 100644 (file)
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
@@ -174,6 +174,9 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp,
 
        if (ret)
                drm_err(&i915->drm, "Failed to send tee msg ret=[%d]\n", ret);
+       else if (msg_out.header.status != 0x0)
+               drm_warn(&i915->drm, "PXP firmware failed arb session init request ret=[0x%08x]\n",
+                        msg_out.header.status);
 
        return ret;
 }