Commit 003e11ed authored by John Harrison's avatar John Harrison Committed by Umesh Nerlige Ramappa
Browse files

drm/i915/mtl: Wa_22011802037: don't complain about missing regs on MTL 



Wa_22011802037 requires waiting for an engine-specific register to
clear. A missing entry for GSC engine in the register table is flagged
as a drm_err. The drm_err was originally intended to catch missing
register entries for newer engines, however, it was later found that the
WA is only required for 'legacy' engines. So just drop the drm_err.

Signed-off-by: default avatarJohn Harrison <John.C.Harrison@Intel.com>
Reviewed-by: default avatarAndrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: default avatarUmesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230124231111.1786429-1-umesh.nerlige.ramappa@intel.com
parent 2f8c06cb

drivers/gpu/drm/i915/gt/intel_engine_cs.c

+1 −4
Original line number Diff line number Diff line
@@ -1584,11 +1584,8 @@ static u32 __cs_pending_mi_force_wakes(struct intel_engine_cs *engine) 
	};

	u32 val;



	if (!_reg[engine->id].reg) {

		drm_err(&engine->i915->drm,

			"MSG IDLE undefined for engine id %u\n", engine->id);

	if (!_reg[engine->id].reg)

		return 0;

	}



	val = intel_uncore_read(engine->uncore, _reg[engine->id]);