[PATCH 1/2] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50

[PATCH 1/2] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50

[Dmitry Baryshkov]

Fill clk_inefficiency_factor, bw_inefficiency_factor and
min_prefill_lines in hw catalog data for sdm845 and sm8[12]50.

Efficiency factors are blindly copied from sc7180 data, while
min_prefill_lines is based on downstream display driver.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 8 ++++++++
 1 file changed, 8 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 189f3533525c..a9f74c1177dd 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -817,6 +817,8 @@ static const struct dpu_perf_cfg sdm845_perf_data = {
 		{.rd_enable = 1, .wr_enable = 1},
 		{.rd_enable = 1, .wr_enable = 0}
 	},
+	.clk_inefficiency_factor = 105,
+	.bw_inefficiency_factor = 120,
 };
 
 static const struct dpu_perf_cfg sc7180_perf_data = {
@@ -852,6 +854,7 @@ static const struct dpu_perf_cfg sm8150_perf_data = {
 	.min_core_ib = 2400000,
 	.min_llcc_ib = 800000,
 	.min_dram_ib = 800000,
+	.min_prefill_lines = 24,
 	.danger_lut_tbl = {0xf, 0xffff, 0x0},
 	.qos_lut_tbl = {
 		{.nentry = ARRAY_SIZE(sm8150_qos_linear),
@@ -869,6 +872,8 @@ static const struct dpu_perf_cfg sm8150_perf_data = {
 		{.rd_enable = 1, .wr_enable = 1},
 		{.rd_enable = 1, .wr_enable = 0}
 	},
+	.clk_inefficiency_factor = 105,
+	.bw_inefficiency_factor = 120,
 };
 
 static const struct dpu_perf_cfg sm8250_perf_data = {
@@ -877,6 +882,7 @@ static const struct dpu_perf_cfg sm8250_perf_data = {
 	.min_core_ib = 4800000,
 	.min_llcc_ib = 0,
 	.min_dram_ib = 800000,
+	.min_prefill_lines = 35,
 	.danger_lut_tbl = {0xf, 0xffff, 0x0},
 	.qos_lut_tbl = {
 		{.nentry = ARRAY_SIZE(sc7180_qos_linear),
@@ -894,6 +900,8 @@ static const struct dpu_perf_cfg sm8250_perf_data = {
 		{.rd_enable = 1, .wr_enable = 1},
 		{.rd_enable = 1, .wr_enable = 0}
 	},
+	.clk_inefficiency_factor = 105,
+	.bw_inefficiency_factor = 120,
 };
 
 /*************************************************************
-- 
2.30.2

[PATCH 2/2] drm/msm/dpu: always use mdp device to scale bandwidth

[Dmitry Baryshkov]

Currently DPU driver scales bandwidth and core clock for sc7180 only,
while the rest of chips get static bandwidth votes. Make all chipsets
scale bandwidth and clock per composition requirements like sc7180 does.
Drop old voting path completely.

Tested on RB3 (SDM845) and RB5 (SM8250).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c  |  3 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 51 +-----------------------
 2 files changed, 2 insertions(+), 52 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 85f2c3564c96..fb061e666faa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -933,8 +933,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 		DPU_DEBUG("REG_DMA is not defined");
 	}
 
-	if (of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss"))
-		dpu_kms_parse_data_bus_icc_path(dpu_kms);
+	dpu_kms_parse_data_bus_icc_path(dpu_kms);
 
 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
index cd4078807db1..3416e9617ee9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
@@ -31,40 +31,8 @@ struct dpu_mdss {
 	void __iomem *mmio;
 	struct dss_module_power mp;
 	struct dpu_irq_controller irq_controller;
-	struct icc_path *path[2];
-	u32 num_paths;
 };
 
-static int dpu_mdss_parse_data_bus_icc_path(struct drm_device *dev,
-						struct dpu_mdss *dpu_mdss)
-{
-	struct icc_path *path0 = of_icc_get(dev->dev, "mdp0-mem");
-	struct icc_path *path1 = of_icc_get(dev->dev, "mdp1-mem");
-
-	if (IS_ERR_OR_NULL(path0))
-		return PTR_ERR_OR_ZERO(path0);
-
-	dpu_mdss->path[0] = path0;
-	dpu_mdss->num_paths = 1;
-
-	if (!IS_ERR_OR_NULL(path1)) {
-		dpu_mdss->path[1] = path1;
-		dpu_mdss->num_paths++;
-	}
-
-	return 0;
-}
-
-static void dpu_mdss_icc_request_bw(struct msm_mdss *mdss)
-{
-	struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss);
-	int i;
-	u64 avg_bw = dpu_mdss->num_paths ? MAX_BW / dpu_mdss->num_paths : 0;
-
-	for (i = 0; i < dpu_mdss->num_paths; i++)
-		icc_set_bw(dpu_mdss->path[i], avg_bw, kBps_to_icc(MAX_BW));
-}
-
 static void dpu_mdss_irq(struct irq_desc *desc)
 {
 	struct dpu_mdss *dpu_mdss = irq_desc_get_handler_data(desc);
@@ -178,8 +146,6 @@ static int dpu_mdss_enable(struct msm_mdss *mdss)
 	struct dss_module_power *mp = &dpu_mdss->mp;
 	int ret;
 
-	dpu_mdss_icc_request_bw(mdss);
-
 	ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
 	if (ret) {
 		DPU_ERROR("clock enable failed, ret:%d\n", ret);
@@ -213,15 +179,12 @@ static int dpu_mdss_disable(struct msm_mdss *mdss)
 {
 	struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss);
 	struct dss_module_power *mp = &dpu_mdss->mp;
-	int ret, i;
+	int ret;
 
 	ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
 	if (ret)
 		DPU_ERROR("clock disable failed, ret:%d\n", ret);
 
-	for (i = 0; i < dpu_mdss->num_paths; i++)
-		icc_set_bw(dpu_mdss->path[i], 0, 0);
-
 	return ret;
 }
 
@@ -232,7 +195,6 @@ static void dpu_mdss_destroy(struct drm_device *dev)
 	struct dpu_mdss *dpu_mdss = to_dpu_mdss(priv->mdss);
 	struct dss_module_power *mp = &dpu_mdss->mp;
 	int irq;
-	int i;
 
 	pm_runtime_suspend(dev->dev);
 	pm_runtime_disable(dev->dev);
@@ -242,9 +204,6 @@ static void dpu_mdss_destroy(struct drm_device *dev)
 	msm_dss_put_clk(mp->clk_config, mp->num_clk);
 	devm_kfree(&pdev->dev, mp->clk_config);
 
-	for (i = 0; i < dpu_mdss->num_paths; i++)
-		icc_put(dpu_mdss->path[i]);
-
 	if (dpu_mdss->mmio)
 		devm_iounmap(&pdev->dev, dpu_mdss->mmio);
 	dpu_mdss->mmio = NULL;
@@ -276,12 +235,6 @@ int dpu_mdss_init(struct drm_device *dev)
 
 	DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio);
 
-	if (!of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss")) {
-		ret = dpu_mdss_parse_data_bus_icc_path(dev, dpu_mdss);
-		if (ret)
-			return ret;
-	}
-
 	mp = &dpu_mdss->mp;
 	ret = msm_dss_parse_clock(pdev, mp);
 	if (ret) {
@@ -307,8 +260,6 @@ int dpu_mdss_init(struct drm_device *dev)
 
 	pm_runtime_enable(dev->dev);
 
-	dpu_mdss_icc_request_bw(priv->mdss);
-
 	return ret;
 
 irq_error:
-- 
2.30.2

Re: [PATCH 1/2] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50

[patchwork-bot+linux-arm-msm]

Hello:

This series was applied to qcom/linux.git (refs/heads/for-next):

On Thu,  1 Apr 2021 05:05:32 +0300 you wrote:
> Fill clk_inefficiency_factor, bw_inefficiency_factor and
> min_prefill_lines in hw catalog data for sdm845 and sm8[12]50.
> 
> Efficiency factors are blindly copied from sc7180 data, while
> min_prefill_lines is based on downstream display driver.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> 
> [...]

Here is the summary with links:
  - [1/2] drm/msm/dpu: fill missing details in hw catalog for sdm845 and sm8[12]50
    https://git.kernel.org/qcom/c/4f2c98383fcc
  - [2/2] drm/msm/dpu: always use mdp device to scale bandwidth
    https://git.kernel.org/qcom/c/a670ff578f1f

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html