Commit 1efa473e authored by Swathi Dhanavanthri's avatar Swathi Dhanavanthri Committed by Chris Wilson
Browse files

drm/i915/dg1: Implement WA_16011163337 



Set GS Timer to 224 to prevent a HS/DS hang.

Bspec: 53508

v2: reword commit message and add comment explaining why read
verification is ignored (Chris)

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: default avatarSwathi Dhanavanthri <swathi.dhanavanthri@intel.com>
Signed-off-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201205092542.2325477-1-lucas.demarchi@intel.com
parent f867b66e

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

+10 −0
Original line number Diff line number Diff line
@@ -686,6 +686,16 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine, 
	/* Wa_22010493298 */

	WA_SET_BIT_MASKED(HIZ_CHICKEN,

			  DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE);



	/*

	 * Wa_16011163337

	 *

	 * Like in tgl_ctx_workarounds_init(), read verification is ignored due

	 * to Wa_1608008084.

	 */

	wa_add(wal,

	       FF_MODE2,

	       FF_MODE2_GS_TIMER_MASK, FF_MODE2_GS_TIMER_224, 0);

}



static void