From ca8c39796206b5e8f43f5e9df40d5218c48ba9bc Mon Sep 17 00:00:00 2001
From: Kalyan Thota <kalyan_t@codeaurora.org>
Date: Wed, 4 Aug 2021 02:40:28 -0700
Subject: drm/msm/disp/dpu1: add safe lut config in dpu driver
Git-commit: 5bccb945f38b2aff334619b23b50bb0a6a9995a5
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Add safe lut configuration for all the targets in dpu
driver as per QOS recommendation.
Issue reported on SC7280:
With wait-for-safe feature in smmu enabled, RT client
buffer levels are checked to be safe before smmu invalidation.
Since display was always set to unsafe it was delaying the
invalidaiton process thus impacting the performance on NRT clients
such as eMMC and NVMe.
Validated this change on SC7280, With this change eMMC performance
has improved significantly.
Changes in v2:
- Add fixes tag (Sai)
- CC stable kernel (Dimtry)
Changes in v3:
- Correct fixes tag with appropriate hash (stephen)
- Resend patch adding reviewed by tag
- Resend patch adding correct format for pushing into stable tree (Greg)
Fixes: 591e34a091d1 ("drm/msm/disp/dpu1: add support for display for SC7280 target")
Cc: stable@vger.kernel.org
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> (sc7280, sc7180)
Link: https://lore.kernel.org/r/1628070028-2616-1-git-send-email-kalyan_t@codeaurora.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 704dace895cb..b131fd376192 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -974,6 +974,7 @@ static const struct dpu_perf_cfg sdm845_perf_data = {
.amortizable_threshold = 25,
.min_prefill_lines = 24,
.danger_lut_tbl = {0xf, 0xffff, 0x0},
+ .safe_lut_tbl = {0xfff0, 0xf000, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sdm845_qos_linear),
.entries = sdm845_qos_linear
@@ -1001,6 +1002,7 @@ static const struct dpu_perf_cfg sc7180_perf_data = {
.min_dram_ib = 1600000,
.min_prefill_lines = 24,
.danger_lut_tbl = {0xff, 0xffff, 0x0},
+ .safe_lut_tbl = {0xfff0, 0xff00, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sc7180_qos_linear),
.entries = sc7180_qos_linear
@@ -1028,6 +1030,7 @@ static const struct dpu_perf_cfg sm8150_perf_data = {
.min_dram_ib = 800000,
.min_prefill_lines = 24,
.danger_lut_tbl = {0xf, 0xffff, 0x0},
+ .safe_lut_tbl = {0xfff8, 0xf000, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sm8150_qos_linear),
.entries = sm8150_qos_linear
@@ -1056,6 +1059,7 @@ static const struct dpu_perf_cfg sm8250_perf_data = {
.min_dram_ib = 800000,
.min_prefill_lines = 35,
.danger_lut_tbl = {0xf, 0xffff, 0x0},
+ .safe_lut_tbl = {0xfff0, 0xff00, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sc7180_qos_linear),
.entries = sc7180_qos_linear
@@ -1084,6 +1088,7 @@ static const struct dpu_perf_cfg sc7280_perf_data = {
.min_dram_ib = 1600000,
.min_prefill_lines = 24,
.danger_lut_tbl = {0xffff, 0xffff, 0x0},
+ .safe_lut_tbl = {0xff00, 0xff00, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sc7180_qos_macrotile),
.entries = sc7180_qos_macrotile
--
2.38.1