6.6-stable review patch. If anyone has any objections, please let me know.
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From: Bjorn Andersson quic_bjorande@quicinc.com
[ Upstream commit 7cc2621f16b644bb7af37987cb471311641a9e56 ]
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@quicinc.com Reported-by: Anton Bambura jenneron@postmarketos.org Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Patchwork: https://patchwork.freedesktop.org/patch/569840/ Link: https://lore.kernel.org/r/20231130-sc8180x-dpu-safe-lut-v1-1-a8a6bbac36b8@qu... Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 f3de21025ca7..c92fbf24fbac 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 @@ -377,6 +377,7 @@ 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