[PATCH] drm/msm/dpu: Add missing safe_lut_tbl in sc8180x catalog

Bjorn Andersson quic_bjorande at quicinc.com
Fri Dec 1 00:35:01 UTC 2023


Similar to SC8280XP, the misconfigured SAFE logic causes rather
significant delays in __arm_smmu_tlb_sync(), resulting in poor
performance for things such as USB.

Introduce appropriate SAFE values for SC8180X to correct this.

Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
Signed-off-by: Bjorn Andersson <quic_bjorande at quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
index e07f4c8c25b9..9ffc8804a6fc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
@@ -367,6 +367,7 @@ static const struct dpu_perf_cfg sc8180x_perf_data = {
 	.min_llcc_ib = 800000,
 	.min_dram_ib = 800000,
 	.danger_lut_tbl = {0xf, 0xffff, 0x0},
+	.safe_lut_tbl = {0xfff0, 0xf000, 0xffff},
 	.qos_lut_tbl = {
 		{.nentry = ARRAY_SIZE(sc7180_qos_linear),
 		.entries = sc7180_qos_linear

---
base-commit: 3cd3fe06ff81cfb3a969acb12a56796cff5af23d
change-id: 20231130-sc8180x-dpu-safe-lut-ffd0df221d67

Best regards,
-- 
Bjorn Andersson <quic_bjorande at quicinc.com>



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