From: Mika Kuoppala Date: Tue, 15 Oct 2019 15:44:45 +0000 (+0300) Subject: drm/i915/tgl: Wa_1409170338 X-Git-Tag: v5.15~4946^2~41^2~64 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2cbe2d8c562eab58347b39342e37c7a2adbe7fef;p=platform%2Fkernel%2Flinux-starfive.git drm/i915/tgl: Wa_1409170338 Avoid possible hang in tsg,vfe units by keeping l3 clocks runnings. Signed-off-by: Mika Kuoppala Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20191015154449.10338-7-mika.kuoppala@linux.intel.com --- diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 7fea61b..4f9be2e 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -907,6 +907,12 @@ tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) wa_write_or(wal, SUBSLICE_UNIT_LEVEL_CLKGATE2, CPSSUNIT_CLKGATE_DIS); + + /* Wa_1409180338:tgl */ + if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) + wa_write_or(wal, + SLICE_UNIT_LEVEL_CLKGATE, + L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS); } static void