drm/i915/guc: do not dump execlists state with GuC submission

GuC owns the execlists state and the context IDs used for submission, so
the status of the ports and the CSB entries are not something we control
or can decode from the i915 side, therefore we can avoid dumping it. A
follow-up patch will also stop setting the csb pointers when using GuC
submission.

GuC dumps all the required events in the GuC logs when verbosity is set
high enough.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210113021236.8164-3-daniele.ceraolospurio@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 1847d3c2ea99349ec3f6bd5938ee1192960cd14a..f62303bf80b814974ec476752425df46327f6b2c 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1470,7 +1470,9 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine,
                drm_printf(m, "\tIPEHR: 0x%08x\n", ENGINE_READ(engine, IPEHR));
        }
 
-       if (HAS_EXECLISTS(dev_priv)) {
+       if (intel_engine_in_guc_submission_mode(engine)) {
+               /* nothing to print yet */
+       } else if (HAS_EXECLISTS(dev_priv)) {
                struct i915_request * const *port, *rq;
                const u32 *hws =
                        &engine->status_page.addr[I915_HWS_CSB_BUF0_INDEX];