Re: [PATCH v6 2/6] soc: qcom: llcc: Refactor llcc driver to support multiple configuration

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On 8/3/2023 6:33 PM, Mukesh Ojha wrote:


On 8/2/2023 2:44 PM, Komal Bajaj wrote:
Refactor driver to support multiple configuration for llcc on a target.

Signed-off-by: Komal Bajaj <quic_kbajaj@xxxxxxxxxxx>
---
  drivers/soc/qcom/llcc-qcom.c | 270 ++++++++++++++++++++++++-----------
  1 file changed, 184 insertions(+), 86 deletions(-)

diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 67c19ed2219a..808c5aaa7407 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -66,6 +66,8 @@
  #define LLCC_VERSION_2_1_0_0          0x02010000
  #define LLCC_VERSION_4_1_0_0          0x04010000

+#define DEFAULT_CONFIG               1

Could it be DEF_NUM_CFG ?

Okay, will update the macro name.


+
  /**
   * struct llcc_slice_config - Data associated with the llcc slice
   * @usecase_id: Unique id for the client's use case
@@ -127,6 +129,12 @@ struct qcom_llcc_config {
      bool no_edac;
  };

+struct qcom_sct_config {
+    const struct qcom_llcc_config *llcc_config;
+    int num_config;
+};
+
+

Extra line..

Noted.


  enum llcc_reg_offset {
      LLCC_COMMON_HW_INFO,
      LLCC_COMMON_STATUS0,
@@ -423,101 +431,185 @@ static const u32 llcc_v2_1_reg_offset[] = {
      [LLCC_COMMON_STATUS0]    = 0x0003400c,
  };

-static const struct qcom_llcc_config sc7180_cfg = {
-    .sct_data    = sc7180_data,
-    .size        = ARRAY_SIZE(sc7180_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sc7180_cfg[] = {
+    {
+        .sct_data    = sc7180_data,
+        .size        = ARRAY_SIZE(sc7180_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sc7280_cfg[] = {
+    {
+        .sct_data    = sc7280_data,
+        .size        = ARRAY_SIZE(sc7280_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sc8180x_cfg[] = {
+    {
+        .sct_data    = sc8180x_data,
+        .size        = ARRAY_SIZE(sc8180x_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sc8280xp_cfg[] = {
+    {
+        .sct_data    = sc8280xp_data,
+        .size        = ARRAY_SIZE(sc8280xp_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sdm845_cfg[] = {
+    {
+        .sct_data    = sdm845_data,
+        .size        = ARRAY_SIZE(sdm845_data),
+        .need_llcc_cfg    = false,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+        .no_edac    = true,
+    },
+};
+
+static const struct qcom_llcc_config sm6350_cfg[] = {
+    {
+        .sct_data    = sm6350_data,
+        .size        = ARRAY_SIZE(sm6350_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sm7150_cfg[] = {
+    {
+        .sct_data       = sm7150_data,
+        .size           = ARRAY_SIZE(sm7150_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
  };

-static const struct qcom_llcc_config sc7280_cfg = {
-    .sct_data    = sc7280_data,
-    .size        = ARRAY_SIZE(sc7280_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm8150_cfg[] = {
+    {
+        .sct_data       = sm8150_data,
+        .size           = ARRAY_SIZE(sm8150_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
  };

-static const struct qcom_llcc_config sc8180x_cfg = {
-    .sct_data    = sc8180x_data,
-    .size        = ARRAY_SIZE(sc8180x_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm8250_cfg[] = {
+    {
+        .sct_data       = sm8250_data,
+        .size           = ARRAY_SIZE(sm8250_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
  };

-static const struct qcom_llcc_config sc8280xp_cfg = {
-    .sct_data    = sc8280xp_data,
-    .size        = ARRAY_SIZE(sc8280xp_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_llcc_config sm8350_cfg[] = {
+    {
+        .sct_data       = sm8350_data,
+        .size           = ARRAY_SIZE(sm8350_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v1_reg_offset,
+        .edac_reg_offset = &llcc_v1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sm8450_cfg[] = {
+    {
+        .sct_data       = sm8450_data,
+        .size           = ARRAY_SIZE(sm8450_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v2_1_reg_offset,
+        .edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+    },
+};
+
+static const struct qcom_llcc_config sm8550_cfg[] = {
+    {
+        .sct_data       = sm8550_data,
+        .size           = ARRAY_SIZE(sm8550_data),
+        .need_llcc_cfg    = true,
+        .reg_offset    = llcc_v2_1_reg_offset,
+        .edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+    },
  };

-static const struct qcom_llcc_config sdm845_cfg = {
-    .sct_data    = sdm845_data,
-    .size        = ARRAY_SIZE(sdm845_data),
-    .need_llcc_cfg    = false,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
-    .no_edac    = true,
+static const struct qcom_sct_config sc7180_cfgs = {
+    .llcc_config    = sc7180_cfg,
+    .num_config    = ARRAY_SIZE(sc7180_cfg),
  };

-static const struct qcom_llcc_config sm6350_cfg = {
-    .sct_data    = sm6350_data,
-    .size        = ARRAY_SIZE(sm6350_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sc7280_cfgs = {
+    .llcc_config    = sc7280_cfg,
+    .num_config    = ARRAY_SIZE(sc7280_cfg),
  };

-static const struct qcom_llcc_config sm7150_cfg = {
-    .sct_data       = sm7150_data,
-    .size           = ARRAY_SIZE(sm7150_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sc8180x_cfgs = {
+    .llcc_config    = sc8180x_cfg,
+    .num_config    = ARRAY_SIZE(sc8180x_cfg),
  };

-static const struct qcom_llcc_config sm8150_cfg = {
-    .sct_data       = sm8150_data,
-    .size           = ARRAY_SIZE(sm8150_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sc8280xp_cfgs = {
+    .llcc_config    = sc8280xp_cfg,
+    .num_config    = ARRAY_SIZE(sc8280xp_cfg),
  };

-static const struct qcom_llcc_config sm8250_cfg = {
-    .sct_data       = sm8250_data,
-    .size           = ARRAY_SIZE(sm8250_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sdm845_cfgs = {
+    .llcc_config    = sdm845_cfg,
+    .num_config    = ARRAY_SIZE(sdm845_cfg),
  };

-static const struct qcom_llcc_config sm8350_cfg = {
-    .sct_data       = sm8350_data,
-    .size           = ARRAY_SIZE(sm8350_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v1_reg_offset,
-    .edac_reg_offset = &llcc_v1_edac_reg_offset,
+static const struct qcom_sct_config sm6350_cfgs = {
+    .llcc_config    = sm6350_cfg,
+    .num_config    = ARRAY_SIZE(sm6350_cfg),
  };

-static const struct qcom_llcc_config sm8450_cfg = {
-    .sct_data       = sm8450_data,
-    .size           = ARRAY_SIZE(sm8450_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v2_1_reg_offset,
-    .edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+static const struct qcom_sct_config sm7150_cfgs = {
+    .llcc_config    = sm7150_cfg,
+    .num_config    = ARRAY_SIZE(sm7150_cfg),
  };

-static const struct qcom_llcc_config sm8550_cfg = {
-    .sct_data       = sm8550_data,
-    .size           = ARRAY_SIZE(sm8550_data),
-    .need_llcc_cfg    = true,
-    .reg_offset    = llcc_v2_1_reg_offset,
-    .edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+static const struct qcom_sct_config sm8150_cfgs = {
+    .llcc_config    = sm8150_cfg,
+    .num_config    = ARRAY_SIZE(sm8150_cfg),
+};
+
+static const struct qcom_sct_config sm8250_cfgs = {
+    .llcc_config    = sm8250_cfg,
+    .num_config    = ARRAY_SIZE(sm8250_cfg),
+};
+
+static const struct qcom_sct_config sm8350_cfgs = {
+    .llcc_config    = sm8350_cfg,
+    .num_config    = ARRAY_SIZE(sm8350_cfg),
+};
+
+static const struct qcom_sct_config sm8450_cfgs = {
+    .llcc_config    = sm8450_cfg,
+    .num_config    = ARRAY_SIZE(sm8450_cfg),
+};
+
+static const struct qcom_sct_config sm8550_cfgs = {
+    .llcc_config    = sm8550_cfg,
+    .num_config    = ARRAY_SIZE(sm8550_cfg),
  };

  static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
@@ -939,6 +1031,7 @@ static int qcom_llcc_probe(struct platform_device *pdev)
      struct device *dev = &pdev->dev;
      int ret, i;
      struct platform_device *llcc_edac;
+    const struct qcom_sct_config *cfgs;
      const struct qcom_llcc_config *cfg;
      const struct llcc_slice_config *llcc_cfg;
      u32 sz;
@@ -958,7 +1051,12 @@ static int qcom_llcc_probe(struct platform_device *pdev)
          goto err;
      }

-    cfg = of_device_get_match_data(&pdev->dev);
+    cfgs = of_device_get_match_data(&pdev->dev);
+    if (cfgs->num_config != DEFAULT_CONFIG) {

NUL check is needed for cfgs;

Sure, will add the NULL check.

Thanks
Komal



-Mukesh
+        ret = -EINVAL;
+        goto err;
+    }
+    cfg = &cfgs->llcc_config[DEFAULT_CONFIG - 1];

      ret = regmap_read(regmap, cfg->reg_offset[LLCC_COMMON_STATUS0], &num_banks);
      if (ret)
@@ -1051,18 +1149,18 @@ static int qcom_llcc_probe(struct platform_device *pdev)
  }

  static const struct of_device_id qcom_llcc_of_match[] = {
-    { .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfg },
-    { .compatible = "qcom,sc7280-llcc", .data = &sc7280_cfg },
-    { .compatible = "qcom,sc8180x-llcc", .data = &sc8180x_cfg },
-    { .compatible = "qcom,sc8280xp-llcc", .data = &sc8280xp_cfg },
-    { .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfg },
-    { .compatible = "qcom,sm6350-llcc", .data = &sm6350_cfg },
-    { .compatible = "qcom,sm7150-llcc", .data = &sm7150_cfg },
-    { .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg },
-    { .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg },
-    { .compatible = "qcom,sm8350-llcc", .data = &sm8350_cfg },
-    { .compatible = "qcom,sm8450-llcc", .data = &sm8450_cfg },
-    { .compatible = "qcom,sm8550-llcc", .data = &sm8550_cfg },
+    { .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfgs },
+    { .compatible = "qcom,sc7280-llcc", .data = &sc7280_cfgs },
+    { .compatible = "qcom,sc8180x-llcc", .data = &sc8180x_cfgs },
+    { .compatible = "qcom,sc8280xp-llcc", .data = &sc8280xp_cfgs },
+    { .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfgs },
+    { .compatible = "qcom,sm6350-llcc", .data = &sm6350_cfgs },
+    { .compatible = "qcom,sm7150-llcc", .data = &sm7150_cfgs },
+    { .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfgs },
+    { .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfgs },
+    { .compatible = "qcom,sm8350-llcc", .data = &sm8350_cfgs },
+    { .compatible = "qcom,sm8450-llcc", .data = &sm8450_cfgs },
+    { .compatible = "qcom,sm8550-llcc", .data = &sm8550_cfgs },
      { }
  };
  MODULE_DEVICE_TABLE(of, qcom_llcc_of_match);
--
2.41.0





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