From: Tvrtko Ursulin <[email protected]>

Enable FtrPerCtxtPreemptionGranularityControl bit and whitelist
GEN8_CS_CHICKEN1 so WaEnablePreemptionGranularityControlByUMD is
implemented.

Signed-off-by: Tvrtko Ursulin <[email protected]>
Cc: Michał Winiarski <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c 
b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 5a7db279f702..5d2a8cb70e16 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1254,6 +1254,9 @@ static void tgl_whitelist_build(struct intel_engine_cs 
*engine)
                whitelist_reg_ext(w, PS_INVOCATION_COUNT,
                                  RING_FORCE_TO_NONPRIV_ACCESS_RD |
                                  RING_FORCE_TO_NONPRIV_RANGE_4);
+
+               /* WaEnablePreemptionGranularityControlByUMD:tgl */
+               whitelist_reg(w, GEN8_CS_CHICKEN1);
                break;
        default:
                break;
@@ -1412,8 +1415,8 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct 
i915_wa_list *wal)
                                   0);
        }
 
-       if (IS_GEN_RANGE(i915, 9, 11)) {
-               /* 
FtrPerCtxtPreemptionGranularityControl:skl,bxt,kbl,cfl,cnl,icl */
+       if (IS_GEN_RANGE(i915, 9, 12)) {
+               /* 
FtrPerCtxtPreemptionGranularityControl:skl,bxt,kbl,cfl,cnl,icl,tgl */
                wa_masked_en(wal,
                             GEN7_FF_SLICE_CS_CHICKEN1,
                             GEN9_FFSC_PERCTX_PREEMPT_CTRL);
-- 
2.20.1

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