[PATCH 0/5] soc: qcom: llcc: Add support for QDU1000/QRU1000

[PATCH 0/5] soc: qcom: llcc: Add support for QDU1000/QRU1000

[Komal Bajaj]

This patchset refactor LLCC driver and adds LLCC support for the
Qualcomm QDU1000 and QRU1000 SoCs. Since QDU1000/QRU1000 supports
multi channel DDR, add support for multi channel DDR configuration
in LLCC.

Komal Bajaj (5):
  soc: qcom: llcc: Refactor llcc driver to support multiple
    configuration
  dt-bindings: arm: msm: Add bindings for multi channel DDR in LLCC
  dt-bindings: arm: msm: Add LLCC compatible for QDU1000/QRU1000
  soc: qcom: Add LLCC support for multi channel DDR
  soc: qcom: llcc: Add QDU1000 and QRU1000 LLCC support

 .../bindings/arm/msm/qcom,llcc.yaml           |  10 +
 drivers/soc/qcom/llcc-qcom.c                  | 308 +++++++++++++-----
 include/linux/soc/qcom/llcc-qcom.h            |   4 +-
 3 files changed, 240 insertions(+), 82 deletions(-)

-- 
2.39.1

[PATCH 1/5] soc: qcom: llcc: Refactor llcc driver to support multiple configuration

[Komal Bajaj]

Refactor driver to support multiple configuration for llcc on a target.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 drivers/soc/qcom/llcc-qcom.c | 191 ++++++++++++++++++++---------------
 1 file changed, 112 insertions(+), 79 deletions(-)

diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 23ce2f78c4ed..00699a0c047e 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -416,92 +416,125 @@ 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 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 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 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,
+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,
+	},
+	{ },
 };
 
-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 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 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 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 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 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 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 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 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 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 struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
@@ -966,8 +999,8 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 	num_banks >>= LLCC_LB_CNT_SHIFT;
 	drv_data->num_banks = num_banks;
 
-	llcc_cfg = cfg->sct_data;
-	sz = cfg->size;
+	llcc_cfg = cfg[0].sct_data;
+	sz = cfg[0].size;
 
 	for (i = 0; i < sz; i++)
 		if (llcc_cfg[i].slice_id > drv_data->max_slices)
@@ -1016,17 +1049,17 @@ 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,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_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,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 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_llcc_of_match);
-- 
2.39.1

[PATCH 2/5] dt-bindings: arm: msm: Add bindings for multi channel DDR in LLCC

[Komal Bajaj]

Add description for additional nodes needed to support
mulitple channel DDR configurations in LLCC.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
index 38efcad56dbd..9a4a76caf490 100644
--- a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
@@ -37,15 +37,24 @@ properties:
     items:
       - description: LLCC base register region
       - description: LLCC broadcast base register region
+      - description: Feature register to decide which LLCC configuration
+                     to use, this is optional
 
   reg-names:
     items:
       - const: llcc_base
       - const: llcc_broadcast_base
+      - const: multi_channel_register
 
   interrupts:
     maxItems: 1
 
+  multi-ch-bit-off:
+    items:
+      - description: Specifies the offset in bits into the multi_channel_register
+                     and the number of bits used to decide which LLCC configuration
+                     to use
+
 required:
   - compatible
   - reg
-- 
2.39.1

[PATCH 3/5] dt-bindings: arm: msm: Add LLCC compatible for QDU1000/QRU1000

[Komal Bajaj]

Add LLCC compatible for QDU1000/QRU1000 SoCs.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
index 9a4a76caf490..afb1b84907e0 100644
--- a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
@@ -32,6 +32,7 @@ properties:
       - qcom,sm8350-llcc
       - qcom,sm8450-llcc
       - qcom,sm8550-llcc
+      - qcom,qdu1000-llcc
 
   reg:
     items:
-- 
2.39.1

[PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR

[Komal Bajaj]

Add LLCC support for multi channel DDR configurations
based off of a feature register.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 drivers/soc/qcom/llcc-qcom.c       | 56 ++++++++++++++++++++++++++++--
 include/linux/soc/qcom/llcc-qcom.h |  2 ++
 2 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 00699a0c047e..696f1f46dd61 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -17,6 +17,7 @@
 #include <linux/regmap.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
+#include <linux/qcom_scm.h>
 #include <linux/soc/qcom/llcc-qcom.h>
 
 #define ACTIVATE                      BIT(0)
@@ -924,6 +925,40 @@ static int qcom_llcc_cfg_program(struct platform_device *pdev,
 	return ret;
 }
 
+static int qcom_llcc_get_cfg_index(struct platform_device *pdev, u32 *cfg_index)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *ch_res = NULL;
+
+	u32 ch_reg_sz;
+	u32 ch_reg_off;
+	u32 val;
+	int ret = 0;
+
+	ch_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "multi_channel_register");
+	if (ch_res) {
+		if (of_property_read_u32(dev->of_node, "multi-ch-bit-off", &ch_reg_off)) {
+			dev_err(&pdev->dev,
+				"Couldn't get offset for multi channel feature register\n");
+			return -ENODEV;
+		}
+		if (of_property_read_u32_index(dev->of_node, "multi-ch-bit-off", 1, &ch_reg_sz)) {
+			dev_err(&pdev->dev,
+				"Couldn't get size of multi channel feature register\n");
+			return -ENODEV;
+		}
+
+		if (qcom_scm_io_readl(ch_res->start, &val)) {
+			dev_err(&pdev->dev, "Couldn't access multi channel feature register\n");
+			ret = -EINVAL;
+		}
+		*cfg_index = (val >> ch_reg_off) & ((1 << ch_reg_sz) - 1);
+	} else
+		*cfg_index = 0;
+
+	return ret;
+}
+
 static int qcom_llcc_remove(struct platform_device *pdev)
 {
 	/* Set the global pointer to a error code to avoid referencing it */
@@ -956,10 +991,13 @@ 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_llcc_config *cfg;
+	const struct qcom_llcc_config *cfg, *entry;
 	const struct llcc_slice_config *llcc_cfg;
+
 	u32 sz;
+	u32 cfg_index;
 	u32 version;
+	u32 no_of_entries = 0;
 
 	drv_data = devm_kzalloc(dev, sizeof(*drv_data), GFP_KERNEL);
 	if (!drv_data) {
@@ -999,8 +1037,20 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 	num_banks >>= LLCC_LB_CNT_SHIFT;
 	drv_data->num_banks = num_banks;
 
-	llcc_cfg = cfg[0].sct_data;
-	sz = cfg[0].size;
+	ret = qcom_llcc_get_cfg_index(pdev, &cfg_index);
+	if (ret)
+		goto err;
+
+	for (entry = cfg; entry->sct_data; entry++, no_of_entries++)
+		;
+	if (cfg_index >= no_of_entries) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	drv_data->cfg_index = cfg_index;
+	llcc_cfg = cfg[cfg_index].sct_data;
+	sz = cfg[cfg_index].size;
 
 	for (i = 0; i < sz; i++)
 		if (llcc_cfg[i].slice_id > drv_data->max_slices)
diff --git a/include/linux/soc/qcom/llcc-qcom.h b/include/linux/soc/qcom/llcc-qcom.h
index ad1fd718169d..225891a02f5d 100644
--- a/include/linux/soc/qcom/llcc-qcom.h
+++ b/include/linux/soc/qcom/llcc-qcom.h
@@ -125,6 +125,7 @@ struct llcc_edac_reg_offset {
  * @cfg: pointer to the data structure for slice configuration
  * @edac_reg_offset: Offset of the LLCC EDAC registers
  * @lock: mutex associated with each slice
+ * @cfg_index: index of config table if multiple configs present for a target
  * @cfg_size: size of the config data table
  * @max_slices: max slices as read from device tree
  * @num_banks: Number of llcc banks
@@ -139,6 +140,7 @@ struct llcc_drv_data {
 	const struct llcc_slice_config *cfg;
 	const struct llcc_edac_reg_offset *edac_reg_offset;
 	struct mutex lock;
+	u32 cfg_index;
 	u32 cfg_size;
 	u32 max_slices;
 	u32 num_banks;
-- 
2.39.1

Re: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR

[kernel test robot]

Hi Komal,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.3-rc2 next-20230310]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Komal-Bajaj/soc-qcom-llcc-Refactor-llcc-driver-to-support-multiple-configuration/20230313-151543
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20230313071325.21605-5-quic_kbajaj%40quicinc.com
patch subject: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR
config: arc-randconfig-r043-20230313 (https://download.01.org/0day-ci/archive/20230313/202303131704.RIYLnDCZ-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/ef96faadeb37bb94f77361aef72e2d863fe6e0f9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Komal-Bajaj/soc-qcom-llcc-Refactor-llcc-driver-to-support-multiple-configuration/20230313-151543
        git checkout ef96faadeb37bb94f77361aef72e2d863fe6e0f9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/soc/qcom/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303131704.RIYLnDCZ-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/soc/qcom/llcc-qcom.c:20:10: fatal error: linux/qcom_scm.h: No such file or directory
      20 | #include <linux/qcom_scm.h>
         |          ^~~~~~~~~~~~~~~~~~
   compilation terminated.


vim +20 drivers/soc/qcom/llcc-qcom.c

  > 20	#include <linux/qcom_scm.h>
    21	#include <linux/soc/qcom/llcc-qcom.h>
    22	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

Re: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR

[kernel test robot]

Hi Komal,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.3-rc2 next-20230310]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Komal-Bajaj/soc-qcom-llcc-Refactor-llcc-driver-to-support-multiple-configuration/20230313-151543
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20230313071325.21605-5-quic_kbajaj%40quicinc.com
patch subject: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR
config: hexagon-randconfig-r041-20230312 (https://download.01.org/0day-ci/archive/20230313/202303131722.uo5Li701-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/ef96faadeb37bb94f77361aef72e2d863fe6e0f9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Komal-Bajaj/soc-qcom-llcc-Refactor-llcc-driver-to-support-multiple-configuration/20230313-151543
        git checkout ef96faadeb37bb94f77361aef72e2d863fe6e0f9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/soc/qcom/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303131722.uo5Li701-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/soc/qcom/llcc-qcom.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from drivers/soc/qcom/llcc-qcom.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from drivers/soc/qcom/llcc-qcom.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> drivers/soc/qcom/llcc-qcom.c:20:10: fatal error: 'linux/qcom_scm.h' file not found
   #include <linux/qcom_scm.h>
            ^~~~~~~~~~~~~~~~~~
   6 warnings and 1 error generated.


vim +20 drivers/soc/qcom/llcc-qcom.c

  > 20	#include <linux/qcom_scm.h>
    21	#include <linux/soc/qcom/llcc-qcom.h>
    22	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

Re: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR

[Konrad Dybcio]

[...]
>    include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
>            __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
>                                                          ~~~~~~~~~~ ^
>    include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
>            __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
>                                                          ~~~~~~~~~~ ^
>>> drivers/soc/qcom/llcc-qcom.c:20:10: fatal error: 'linux/qcom_scm.h' file not found
>    #include <linux/qcom_scm.h>
This moved over a month ago. Please send patches against fresh -next
and not some ancient tree.

Konrad
>             ^~~~~~~~~~~~~~~~~~
>    6 warnings and 1 error generated.
> 
> 
> vim +20 drivers/soc/qcom/llcc-qcom.c
> 
>   > 20	#include <linux/qcom_scm.h>
>     21	#include <linux/soc/qcom/llcc-qcom.h>
>     22	
> 

Re: [PATCH 4/5] soc: qcom: Add LLCC support for multi channel DDR

[Komal Bajaj]

On 3/13/2023 3:31 PM, Konrad Dybcio wrote:
> [...]
>>     include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
>>             __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
>>                                                           ~~~~~~~~~~ ^
>>     include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
>>             __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
>>                                                           ~~~~~~~~~~ ^
>>>> drivers/soc/qcom/llcc-qcom.c:20:10: fatal error: 'linux/qcom_scm.h' file not found
>>     #include <linux/qcom_scm.h>
> This moved over a month ago. Please send patches against fresh -next
> and not some ancient tree.
>
> Konrad

Thanks for reviewing it, will send next patch series against fresh -next 
tree.

Thanks
Komal

>>              ^~~~~~~~~~~~~~~~~~
>>     6 warnings and 1 error generated.
>>
>>
>> vim +20 drivers/soc/qcom/llcc-qcom.c
>>
>>    > 20	#include <linux/qcom_scm.h>
>>      21	#include <linux/soc/qcom/llcc-qcom.h>
>>      22	
>>

[PATCH 5/5] soc: qcom: llcc: Add QDU1000 and QRU1000 LLCC support

[Komal Bajaj]

Add LLCC configuration data for QDU1000 and QRU1000 SoCs
and updating macro name for LLCC_DRE to LLCC_ECC as per
the latest specification.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
---
 drivers/soc/qcom/llcc-qcom.c       | 65 +++++++++++++++++++++++++++++-
 include/linux/soc/qcom/llcc-qcom.h |  2 +-
 2 files changed, 65 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 696f1f46dd61..c2c05fcf1f7b 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -188,7 +188,7 @@ static const struct llcc_slice_config sc8280xp_data[] = {
 	{ LLCC_MMUHWT,   13, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
 	{ LLCC_DISP,     16, 6144, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
 	{ LLCC_AUDHW,    22, 2048, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
-	{ LLCC_DRE,      26, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_ECC,      26, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
 	{ LLCC_CVP,      28, 512,  3, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
 	{ LLCC_APTCM,    30, 1024, 3, 1, 0x0,   0x1, 1, 0, 0, 1, 0, 0 },
 	{ LLCC_WRCACHE,  31, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
@@ -351,6 +351,36 @@ static const struct llcc_slice_config sm8550_data[] =  {
 	{LLCC_VIDVSP,   28,  256, 4, 1, 0xFFFFFF, 0x0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
 };
 
+static const struct llcc_slice_config qdu1000_data_2ch[] = {
+	{LLCC_MDMHPGRW, 7, 512, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MODHW,    9, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MDMPNG,  21, 256, 0, 1,   0x3, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_ECC,     26, 512, 3, 1, 0xFFC, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_MODPE,   29, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_APTCM,   30, 256, 3, 1,   0x0, 0xC, 1, 0, 0, 1, 0, 0, 0 },
+	{LLCC_WRCACHE, 31, 128, 1, 1,   0x3, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+};
+
+static const struct llcc_slice_config qdu1000_data_4ch[] = {
+	{LLCC_MDMHPGRW, 7, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MODHW,    9, 512,  1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MDMPNG,  21, 512,  0, 1,   0x3, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_ECC,     26, 1024, 3, 1, 0xFFC, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_MODPE,   29, 512,  1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_APTCM,   30, 512,  3, 1,   0x0, 0xC, 1, 0, 0, 1, 0, 0, 0 },
+	{LLCC_WRCACHE, 31, 256,  1, 1,   0x3, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+};
+
+static const struct llcc_slice_config qdu1000_data_8ch[] = {
+	{LLCC_MDMHPGRW, 7, 2048, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MODHW,    9, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MDMPNG,  21, 1024, 0, 1,   0x3, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_ECC,     26, 2048, 3, 1, 0xFFC, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_MODPE,   29, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_APTCM,   30, 1024, 3, 1,   0x0, 0xC, 1, 0, 0, 1, 0, 0, 0 },
+	{LLCC_WRCACHE, 31, 512,  1, 1,   0x3, 0x0, 0, 0, 0, 0, 1, 0, 0 },
+};
+
 static const struct llcc_edac_reg_offset llcc_v1_edac_reg_offset = {
 	.trp_ecc_error_status0 = 0x20344,
 	.trp_ecc_error_status1 = 0x20348,
@@ -538,6 +568,38 @@ static const struct qcom_llcc_config sm8550_cfg[] = {
 	{ },
 };
 
+static const struct qcom_llcc_config qdu1000_cfg[] = {
+	{
+		.sct_data       = qdu1000_data_8ch,
+		.size		= ARRAY_SIZE(qdu1000_data_8ch),
+		.need_llcc_cfg	= true,
+		.reg_offset	= llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
+	{
+		.sct_data       = qdu1000_data_4ch,
+		.size           = ARRAY_SIZE(qdu1000_data_4ch),
+		.need_llcc_cfg  = true,
+		.reg_offset     = llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
+	{
+		.sct_data       = qdu1000_data_4ch,
+		.size           = ARRAY_SIZE(qdu1000_data_4ch),
+		.need_llcc_cfg  = true,
+		.reg_offset     = llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
+	{
+		.sct_data       = qdu1000_data_2ch,
+		.size           = ARRAY_SIZE(qdu1000_data_2ch),
+		.need_llcc_cfg  = true,
+		.reg_offset     = llcc_v2_1_reg_offset,
+		.edac_reg_offset = &llcc_v2_1_edac_reg_offset,
+	},
+	{ },
+};
+
 static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
 
 /**
@@ -1110,6 +1172,7 @@ static const struct of_device_id qcom_llcc_of_match[] = {
 	{ .compatible = "qcom,sm8350-llcc", .data = sm8350_cfg },
 	{ .compatible = "qcom,sm8450-llcc", .data = sm8450_cfg },
 	{ .compatible = "qcom,sm8550-llcc", .data = sm8550_cfg },
+	{ .compatible = "qcom,qdu1000-llcc", .data = qdu1000_cfg},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_llcc_of_match);
diff --git a/include/linux/soc/qcom/llcc-qcom.h b/include/linux/soc/qcom/llcc-qcom.h
index 225891a02f5d..150b2836c8b9 100644
--- a/include/linux/soc/qcom/llcc-qcom.h
+++ b/include/linux/soc/qcom/llcc-qcom.h
@@ -30,7 +30,7 @@
 #define LLCC_NPU         23
 #define LLCC_WLHW        24
 #define LLCC_PIMEM       25
-#define LLCC_DRE         26
+#define LLCC_ECC         26
 #define LLCC_CVP         28
 #define LLCC_MODPE       29
 #define LLCC_APTCM       30
-- 
2.39.1