This series adds perf support to the Rockchip DFI driver. The DFI is a unit for measuring DRAM performance. Its driver is currently located under drivers/devfreq/event/ as it serves as an event driver for DRAM frequency scaling. With this series it can also be used as a perf driver for measuring DRAM throughput. Usage looks like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed My target SoC is RK3568 which is not yet supported by the driver, so the series starts with some cleanups and preparations, then RK3568 support is added and finally perf support. The driver is tested on both a RK3568 board and a RK3399 board, the latter with dual channel memory. The measured values look sane, read-bytes plus write-bytes is equal to totally transferred bytes, the values reported by perf are slightly higher than the values my copy from/to RAM test tool reports, as expected. Sascha Sascha Hauer (18): PM / devfreq: rockchip-dfi: Embed desc into private data struct PM / devfreq: rockchip-dfi: use consistent name for private data struct PM / devfreq: rockchip-dfi: Make pmu regmap mandatory PM / devfreq: rockchip-dfi: Add SoC specific init function PM / devfreq: rockchip-dfi: dfi store raw values in counter struct PM / devfreq: rockchip-dfi: Use free running counter PM / devfreq: rockchip-dfi: introduce channel mask PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines PM / devfreq: rockchip-dfi: Clean up DDR type register defines PM / devfreq: rockchip-dfi: Add RK3568 support PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly PM / devfreq: rockchip-dfi: Handle LPDDR4X PM / devfreq: rockchip-dfi: Pass private data struct to internal functions PM / devfreq: rockchip-dfi: Prepare for multiple users PM / devfreq: rockchip-dfi: Add perf support arm64: dts: rockchip: rk3399: Enable DFI arm64: dts: rockchip: rk356x: Add DFI dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml .../bindings/devfreq/event/rockchip-dfi.txt | 18 - .../bindings/devfreq/event/rockchip-dfi.yaml | 38 + arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 + drivers/devfreq/event/rockchip-dfi.c | 659 +++++++++++++++--- drivers/devfreq/rk3399_dmc.c | 10 +- include/soc/rockchip/rk3399_grf.h | 9 +- include/soc/rockchip/rk3568_grf.h | 13 + include/soc/rockchip/rockchip_grf.h | 16 + 9 files changed, 638 insertions(+), 132 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml create mode 100644 include/soc/rockchip/rk3568_grf.h create mode 100644 include/soc/rockchip/rockchip_grf.h -- 2.30.2
This series adds perf support to the Rockchip DFI driver. The DFI is a unit for measuring DRAM performance. Its driver is currently located under drivers/devfreq/event/ as it serves as an event driver for DRAM frequency scaling. With this series it can also be used as a perf driver for measuring DRAM throughput. Usage looks like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed My target SoC is RK3568 which is not yet supported by the driver, so the series starts with some cleanups and preparations, then RK3568 support is added and finally perf support. The driver is tested on both a RK3568 board and a RK3399 board, the latter with dual channel memory. The measured values look sane, read-bytes plus write-bytes is equal to totally transferred bytes, the values reported by perf are slightly higher than the values my copy from/to RAM test tool reports, as expected. Sascha Sascha Hauer (18): PM / devfreq: rockchip-dfi: Embed desc into private data struct PM / devfreq: rockchip-dfi: use consistent name for private data struct PM / devfreq: rockchip-dfi: Make pmu regmap mandatory PM / devfreq: rockchip-dfi: Add SoC specific init function PM / devfreq: rockchip-dfi: dfi store raw values in counter struct PM / devfreq: rockchip-dfi: Use free running counter PM / devfreq: rockchip-dfi: introduce channel mask PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines PM / devfreq: rockchip-dfi: Clean up DDR type register defines PM / devfreq: rockchip-dfi: Add RK3568 support PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly PM / devfreq: rockchip-dfi: Handle LPDDR4X PM / devfreq: rockchip-dfi: Pass private data struct to internal functions PM / devfreq: rockchip-dfi: Prepare for multiple users PM / devfreq: rockchip-dfi: Add perf support arm64: dts: rockchip: rk3399: Enable DFI arm64: dts: rockchip: rk356x: Add DFI dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml .../bindings/devfreq/event/rockchip-dfi.txt | 18 - .../bindings/devfreq/event/rockchip-dfi.yaml | 38 + arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 + drivers/devfreq/event/rockchip-dfi.c | 659 +++++++++++++++--- drivers/devfreq/rk3399_dmc.c | 10 +- include/soc/rockchip/rk3399_grf.h | 9 +- include/soc/rockchip/rk3568_grf.h | 13 + include/soc/rockchip/rockchip_grf.h | 16 + 9 files changed, 638 insertions(+), 132 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml create mode 100644 include/soc/rockchip/rk3568_grf.h create mode 100644 include/soc/rockchip/rockchip_grf.h -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
This series adds perf support to the Rockchip DFI driver. The DFI is a unit for measuring DRAM performance. Its driver is currently located under drivers/devfreq/event/ as it serves as an event driver for DRAM frequency scaling. With this series it can also be used as a perf driver for measuring DRAM throughput. Usage looks like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed My target SoC is RK3568 which is not yet supported by the driver, so the series starts with some cleanups and preparations, then RK3568 support is added and finally perf support. The driver is tested on both a RK3568 board and a RK3399 board, the latter with dual channel memory. The measured values look sane, read-bytes plus write-bytes is equal to totally transferred bytes, the values reported by perf are slightly higher than the values my copy from/to RAM test tool reports, as expected. Sascha Sascha Hauer (18): PM / devfreq: rockchip-dfi: Embed desc into private data struct PM / devfreq: rockchip-dfi: use consistent name for private data struct PM / devfreq: rockchip-dfi: Make pmu regmap mandatory PM / devfreq: rockchip-dfi: Add SoC specific init function PM / devfreq: rockchip-dfi: dfi store raw values in counter struct PM / devfreq: rockchip-dfi: Use free running counter PM / devfreq: rockchip-dfi: introduce channel mask PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines PM / devfreq: rockchip-dfi: Clean up DDR type register defines PM / devfreq: rockchip-dfi: Add RK3568 support PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly PM / devfreq: rockchip-dfi: Handle LPDDR4X PM / devfreq: rockchip-dfi: Pass private data struct to internal functions PM / devfreq: rockchip-dfi: Prepare for multiple users PM / devfreq: rockchip-dfi: Add perf support arm64: dts: rockchip: rk3399: Enable DFI arm64: dts: rockchip: rk356x: Add DFI dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml .../bindings/devfreq/event/rockchip-dfi.txt | 18 - .../bindings/devfreq/event/rockchip-dfi.yaml | 38 + arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 + drivers/devfreq/event/rockchip-dfi.c | 659 +++++++++++++++--- drivers/devfreq/rk3399_dmc.c | 10 +- include/soc/rockchip/rk3399_grf.h | 9 +- include/soc/rockchip/rk3568_grf.h | 13 + include/soc/rockchip/rockchip_grf.h | 16 + 9 files changed, 638 insertions(+), 132 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml create mode 100644 include/soc/rockchip/rk3568_grf.h create mode 100644 include/soc/rockchip/rockchip_grf.h -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
No need for an extra allocation, just embed the struct devfreq_event_desc into the private data struct. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 39ac069cabc75..570f1b36c3153 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -49,7 +49,7 @@ struct dmc_usage { */ struct rockchip_dfi { struct devfreq_event_dev *edev; - struct devfreq_event_desc *desc; + struct devfreq_event_desc desc; struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; struct device *dev; void __iomem *regs; @@ -203,14 +203,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) } data->dev = dev; - desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); - if (!desc) - return -ENOMEM; - + desc = &data->desc; desc->ops = &rockchip_dfi_ops; desc->driver_data = data; desc->name = np->name; - data->desc = desc; data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(data->edev)) { -- 2.30.2
No need for an extra allocation, just embed the struct devfreq_event_desc into the private data struct. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 39ac069cabc75..570f1b36c3153 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -49,7 +49,7 @@ struct dmc_usage { */ struct rockchip_dfi { struct devfreq_event_dev *edev; - struct devfreq_event_desc *desc; + struct devfreq_event_desc desc; struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; struct device *dev; void __iomem *regs; @@ -203,14 +203,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) } data->dev = dev; - desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); - if (!desc) - return -ENOMEM; - + desc = &data->desc; desc->ops = &rockchip_dfi_ops; desc->driver_data = data; desc->name = np->name; - data->desc = desc; data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(data->edev)) { -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
No need for an extra allocation, just embed the struct devfreq_event_desc into the private data struct. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 39ac069cabc75..570f1b36c3153 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -49,7 +49,7 @@ struct dmc_usage { */ struct rockchip_dfi { struct devfreq_event_dev *edev; - struct devfreq_event_desc *desc; + struct devfreq_event_desc desc; struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; struct device *dev; void __iomem *regs; @@ -203,14 +203,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) } data->dev = dev; - desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); - if (!desc) - return -ENOMEM; - + desc = &data->desc; desc->ops = &rockchip_dfi_ops; desc->driver_data = data; desc->name = np->name; - data->desc = desc; data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(data->edev)) { -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The variable name for the private data struct is 'info' in some functions and 'data' in others. Both names do not give a clue what type the variable has, so consistently use 'dfi'. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 72 ++++++++++++++-------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 570f1b36c3153..98712ac68aa5f 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -59,13 +59,13 @@ struct rockchip_dfi { static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; u32 val; u32 ddr_type; /* get ddr type */ - regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; @@ -84,28 +84,28 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 tmp, max = 0; u32 i, busier_ch = 0; - void __iomem *dfi_regs = info->regs; + void __iomem *dfi_regs = dfi->regs; rockchip_dfi_stop_hardware_counter(edev); /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - info->ch_usage[i].access = readl_relaxed(dfi_regs + + dfi->ch_usage[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; - info->ch_usage[i].total = readl_relaxed(dfi_regs + + dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = info->ch_usage[i].access; + tmp = dfi->ch_usage[i].access; if (tmp > max) { busier_ch = i; max = tmp; @@ -118,20 +118,20 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); rockchip_dfi_stop_hardware_counter(edev); - clk_disable_unprepare(info->clk); + clk_disable_unprepare(dfi->clk); return 0; } static int rockchip_dfi_enable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int ret; - ret = clk_prepare_enable(info->clk); + ret = clk_prepare_enable(dfi->clk); if (ret) { dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); return ret; @@ -149,13 +149,13 @@ static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int busier_ch; busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = info->ch_usage[busier_ch].access; - edata->total_count = info->ch_usage[busier_ch].total; + edata->load_count = dfi->ch_usage[busier_ch].access; + edata->total_count = dfi->ch_usage[busier_ch].total; return 0; } @@ -176,46 +176,46 @@ MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct rockchip_dfi *data; + struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; - data = devm_kzalloc(dev, sizeof(struct rockchip_dfi), GFP_KERNEL); - if (!data) + dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); + if (!dfi) return -ENOMEM; - data->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(data->regs)) - return PTR_ERR(data->regs); + dfi->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dfi->regs)) + return PTR_ERR(dfi->regs); - data->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(data->clk)) - return dev_err_probe(dev, PTR_ERR(data->clk), + dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); if (node) { - data->regmap_pmu = syscon_node_to_regmap(node); + dfi->regmap_pmu = syscon_node_to_regmap(node); of_node_put(node); - if (IS_ERR(data->regmap_pmu)) - return PTR_ERR(data->regmap_pmu); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); } - data->dev = dev; + dfi->dev = dev; - desc = &data->desc; + desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; - desc->driver_data = data; + desc->driver_data = dfi; desc->name = np->name; - data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); - if (IS_ERR(data->edev)) { + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); + if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, "failed to add devfreq-event device\n"); - return PTR_ERR(data->edev); + return PTR_ERR(dfi->edev); } - platform_set_drvdata(pdev, data); + platform_set_drvdata(pdev, dfi); return 0; } -- 2.30.2
The variable name for the private data struct is 'info' in some functions and 'data' in others. Both names do not give a clue what type the variable has, so consistently use 'dfi'. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 72 ++++++++++++++-------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 570f1b36c3153..98712ac68aa5f 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -59,13 +59,13 @@ struct rockchip_dfi { static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; u32 val; u32 ddr_type; /* get ddr type */ - regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; @@ -84,28 +84,28 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 tmp, max = 0; u32 i, busier_ch = 0; - void __iomem *dfi_regs = info->regs; + void __iomem *dfi_regs = dfi->regs; rockchip_dfi_stop_hardware_counter(edev); /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - info->ch_usage[i].access = readl_relaxed(dfi_regs + + dfi->ch_usage[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; - info->ch_usage[i].total = readl_relaxed(dfi_regs + + dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = info->ch_usage[i].access; + tmp = dfi->ch_usage[i].access; if (tmp > max) { busier_ch = i; max = tmp; @@ -118,20 +118,20 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); rockchip_dfi_stop_hardware_counter(edev); - clk_disable_unprepare(info->clk); + clk_disable_unprepare(dfi->clk); return 0; } static int rockchip_dfi_enable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int ret; - ret = clk_prepare_enable(info->clk); + ret = clk_prepare_enable(dfi->clk); if (ret) { dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); return ret; @@ -149,13 +149,13 @@ static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int busier_ch; busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = info->ch_usage[busier_ch].access; - edata->total_count = info->ch_usage[busier_ch].total; + edata->load_count = dfi->ch_usage[busier_ch].access; + edata->total_count = dfi->ch_usage[busier_ch].total; return 0; } @@ -176,46 +176,46 @@ MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct rockchip_dfi *data; + struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; - data = devm_kzalloc(dev, sizeof(struct rockchip_dfi), GFP_KERNEL); - if (!data) + dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); + if (!dfi) return -ENOMEM; - data->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(data->regs)) - return PTR_ERR(data->regs); + dfi->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dfi->regs)) + return PTR_ERR(dfi->regs); - data->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(data->clk)) - return dev_err_probe(dev, PTR_ERR(data->clk), + dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); if (node) { - data->regmap_pmu = syscon_node_to_regmap(node); + dfi->regmap_pmu = syscon_node_to_regmap(node); of_node_put(node); - if (IS_ERR(data->regmap_pmu)) - return PTR_ERR(data->regmap_pmu); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); } - data->dev = dev; + dfi->dev = dev; - desc = &data->desc; + desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; - desc->driver_data = data; + desc->driver_data = dfi; desc->name = np->name; - data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); - if (IS_ERR(data->edev)) { + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); + if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, "failed to add devfreq-event device\n"); - return PTR_ERR(data->edev); + return PTR_ERR(dfi->edev); } - platform_set_drvdata(pdev, data); + platform_set_drvdata(pdev, dfi); return 0; } -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The variable name for the private data struct is 'info' in some functions and 'data' in others. Both names do not give a clue what type the variable has, so consistently use 'dfi'. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 72 ++++++++++++++-------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 570f1b36c3153..98712ac68aa5f 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -59,13 +59,13 @@ struct rockchip_dfi { static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; u32 val; u32 ddr_type; /* get ddr type */ - regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; @@ -84,28 +84,28 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 tmp, max = 0; u32 i, busier_ch = 0; - void __iomem *dfi_regs = info->regs; + void __iomem *dfi_regs = dfi->regs; rockchip_dfi_stop_hardware_counter(edev); /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - info->ch_usage[i].access = readl_relaxed(dfi_regs + + dfi->ch_usage[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; - info->ch_usage[i].total = readl_relaxed(dfi_regs + + dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = info->ch_usage[i].access; + tmp = dfi->ch_usage[i].access; if (tmp > max) { busier_ch = i; max = tmp; @@ -118,20 +118,20 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); rockchip_dfi_stop_hardware_counter(edev); - clk_disable_unprepare(info->clk); + clk_disable_unprepare(dfi->clk); return 0; } static int rockchip_dfi_enable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int ret; - ret = clk_prepare_enable(info->clk); + ret = clk_prepare_enable(dfi->clk); if (ret) { dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); return ret; @@ -149,13 +149,13 @@ static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int busier_ch; busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = info->ch_usage[busier_ch].access; - edata->total_count = info->ch_usage[busier_ch].total; + edata->load_count = dfi->ch_usage[busier_ch].access; + edata->total_count = dfi->ch_usage[busier_ch].total; return 0; } @@ -176,46 +176,46 @@ MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct rockchip_dfi *data; + struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; - data = devm_kzalloc(dev, sizeof(struct rockchip_dfi), GFP_KERNEL); - if (!data) + dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); + if (!dfi) return -ENOMEM; - data->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(data->regs)) - return PTR_ERR(data->regs); + dfi->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dfi->regs)) + return PTR_ERR(dfi->regs); - data->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(data->clk)) - return dev_err_probe(dev, PTR_ERR(data->clk), + dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); if (node) { - data->regmap_pmu = syscon_node_to_regmap(node); + dfi->regmap_pmu = syscon_node_to_regmap(node); of_node_put(node); - if (IS_ERR(data->regmap_pmu)) - return PTR_ERR(data->regmap_pmu); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); } - data->dev = dev; + dfi->dev = dev; - desc = &data->desc; + desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; - desc->driver_data = data; + desc->driver_data = dfi; desc->name = np->name; - data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); - if (IS_ERR(data->edev)) { + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); + if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, "failed to add devfreq-event device\n"); - return PTR_ERR(data->edev); + return PTR_ERR(dfi->edev); } - platform_set_drvdata(pdev, data); + platform_set_drvdata(pdev, dfi); return 0; } -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
As a matter of fact the regmap_pmu already is mandatory because it is used unconditionally in the driver. Bail out gracefully in probe() rather than crashing later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 98712ac68aa5f..47cc9e48dafab 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -193,14 +193,14 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); - /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); - if (node) { - dfi->regmap_pmu = syscon_node_to_regmap(node); - of_node_put(node); - if (IS_ERR(dfi->regmap_pmu)) - return PTR_ERR(dfi->regmap_pmu); - } + if (!node) + return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); + + dfi->regmap_pmu = syscon_node_to_regmap(node); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); + dfi->dev = dev; desc = &dfi->desc; -- 2.30.2
As a matter of fact the regmap_pmu already is mandatory because it is used unconditionally in the driver. Bail out gracefully in probe() rather than crashing later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 98712ac68aa5f..47cc9e48dafab 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -193,14 +193,14 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); - /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); - if (node) { - dfi->regmap_pmu = syscon_node_to_regmap(node); - of_node_put(node); - if (IS_ERR(dfi->regmap_pmu)) - return PTR_ERR(dfi->regmap_pmu); - } + if (!node) + return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); + + dfi->regmap_pmu = syscon_node_to_regmap(node); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); + dfi->dev = dev; desc = &dfi->desc; -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
As a matter of fact the regmap_pmu already is mandatory because it is used unconditionally in the driver. Bail out gracefully in probe() rather than crashing later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 98712ac68aa5f..47cc9e48dafab 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -193,14 +193,14 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); - /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); - if (node) { - dfi->regmap_pmu = syscon_node_to_regmap(node); - of_node_put(node); - if (IS_ERR(dfi->regmap_pmu)) - return PTR_ERR(dfi->regmap_pmu); - } + if (!node) + return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); + + dfi->regmap_pmu = syscon_node_to_regmap(node); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); + dfi->dev = dev; desc = &dfi->desc; -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Move the RK3399 specifics to a SoC specific init function to make the way free for supporting other SoCs later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 59 +++++++++++++++++++++------- 1 file changed, 44 insertions(+), 15 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 47cc9e48dafab..f317d3d063e9c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include <linux/list.h> #include <linux/of.h> +#include <linux/of_device.h> #include <soc/rockchip/rk3399_grf.h> @@ -55,27 +56,21 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + u32 ddr_type; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - u32 val; - u32 ddr_type; - - /* get ddr type */ - regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; /* clear DDRMON_CTRL setting */ writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -167,8 +162,34 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +static int rk3399_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 val; + + dfi->clk = devm_clk_get(dfi->dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dfi->dev, PTR_ERR(dfi->clk), + "Cannot get the clk pclk_ddr_mon\n"); + + /* get ddr type */ + regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & + RK3399_PMUGRF_DDRTYPE_MASK; + + return 0; +}; + +struct rockchip_dfi_devtype_data { + int (*init)(struct rockchip_dfi *dfi); +}; + +static struct rockchip_dfi_devtype_data rk3399_devtype_data = { + .init = rk3399_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { - { .compatible = "rockchip,rk3399-dfi" }, + { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); @@ -179,6 +200,15 @@ static int rockchip_dfi_probe(struct platform_device *pdev) struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; + const struct of_device_id *of_id; + const struct rockchip_dfi_devtype_data *devtype; + int ret; + + of_id = of_match_device(rockchip_dfi_id_match, &pdev->dev); + if (!of_id) + return -ENODEV; + + devtype = of_id->data; dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); if (!dfi) @@ -188,11 +218,6 @@ static int rockchip_dfi_probe(struct platform_device *pdev) if (IS_ERR(dfi->regs)) return PTR_ERR(dfi->regs); - dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(dfi->clk)) - return dev_err_probe(dev, PTR_ERR(dfi->clk), - "Cannot get the clk pclk_ddr_mon\n"); - node = of_parse_phandle(np, "rockchip,pmu", 0); if (!node) return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); @@ -208,6 +233,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) desc->driver_data = dfi; desc->name = np->name; + ret = devtype->init(dfi); + if (ret) + return ret; + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, -- 2.30.2
Move the RK3399 specifics to a SoC specific init function to make the way free for supporting other SoCs later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 59 +++++++++++++++++++++------- 1 file changed, 44 insertions(+), 15 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 47cc9e48dafab..f317d3d063e9c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include <linux/list.h> #include <linux/of.h> +#include <linux/of_device.h> #include <soc/rockchip/rk3399_grf.h> @@ -55,27 +56,21 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + u32 ddr_type; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - u32 val; - u32 ddr_type; - - /* get ddr type */ - regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; /* clear DDRMON_CTRL setting */ writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -167,8 +162,34 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +static int rk3399_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 val; + + dfi->clk = devm_clk_get(dfi->dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dfi->dev, PTR_ERR(dfi->clk), + "Cannot get the clk pclk_ddr_mon\n"); + + /* get ddr type */ + regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & + RK3399_PMUGRF_DDRTYPE_MASK; + + return 0; +}; + +struct rockchip_dfi_devtype_data { + int (*init)(struct rockchip_dfi *dfi); +}; + +static struct rockchip_dfi_devtype_data rk3399_devtype_data = { + .init = rk3399_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { - { .compatible = "rockchip,rk3399-dfi" }, + { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); @@ -179,6 +200,15 @@ static int rockchip_dfi_probe(struct platform_device *pdev) struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; + const struct of_device_id *of_id; + const struct rockchip_dfi_devtype_data *devtype; + int ret; + + of_id = of_match_device(rockchip_dfi_id_match, &pdev->dev); + if (!of_id) + return -ENODEV; + + devtype = of_id->data; dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); if (!dfi) @@ -188,11 +218,6 @@ static int rockchip_dfi_probe(struct platform_device *pdev) if (IS_ERR(dfi->regs)) return PTR_ERR(dfi->regs); - dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(dfi->clk)) - return dev_err_probe(dev, PTR_ERR(dfi->clk), - "Cannot get the clk pclk_ddr_mon\n"); - node = of_parse_phandle(np, "rockchip,pmu", 0); if (!node) return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); @@ -208,6 +233,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) desc->driver_data = dfi; desc->name = np->name; + ret = devtype->init(dfi); + if (ret) + return ret; + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
Move the RK3399 specifics to a SoC specific init function to make the way free for supporting other SoCs later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 59 +++++++++++++++++++++------- 1 file changed, 44 insertions(+), 15 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 47cc9e48dafab..f317d3d063e9c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include <linux/list.h> #include <linux/of.h> +#include <linux/of_device.h> #include <soc/rockchip/rk3399_grf.h> @@ -55,27 +56,21 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + u32 ddr_type; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - u32 val; - u32 ddr_type; - - /* get ddr type */ - regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; /* clear DDRMON_CTRL setting */ writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -167,8 +162,34 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +static int rk3399_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 val; + + dfi->clk = devm_clk_get(dfi->dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dfi->dev, PTR_ERR(dfi->clk), + "Cannot get the clk pclk_ddr_mon\n"); + + /* get ddr type */ + regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & + RK3399_PMUGRF_DDRTYPE_MASK; + + return 0; +}; + +struct rockchip_dfi_devtype_data { + int (*init)(struct rockchip_dfi *dfi); +}; + +static struct rockchip_dfi_devtype_data rk3399_devtype_data = { + .init = rk3399_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { - { .compatible = "rockchip,rk3399-dfi" }, + { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); @@ -179,6 +200,15 @@ static int rockchip_dfi_probe(struct platform_device *pdev) struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; + const struct of_device_id *of_id; + const struct rockchip_dfi_devtype_data *devtype; + int ret; + + of_id = of_match_device(rockchip_dfi_id_match, &pdev->dev); + if (!of_id) + return -ENODEV; + + devtype = of_id->data; dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); if (!dfi) @@ -188,11 +218,6 @@ static int rockchip_dfi_probe(struct platform_device *pdev) if (IS_ERR(dfi->regs)) return PTR_ERR(dfi->regs); - dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(dfi->clk)) - return dev_err_probe(dev, PTR_ERR(dfi->clk), - "Cannot get the clk pclk_ddr_mon\n"); - node = of_parse_phandle(np, "rockchip,pmu", 0); if (!node) return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); @@ -208,6 +233,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) desc->driver_data = dfi; desc->name = np->name; + ret = devtype->init(dfi); + if (ret) + return ret; + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
When adding perf support to the DFI driver the perf part will need the raw counter values, so move the fixed * 4 factor to rockchip_dfi_get_event(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index f317d3d063e9c..383fe8a17a512 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -97,7 +97,7 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { dfi->ch_usage[i].access = readl_relaxed(dfi_regs + - DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); tmp = dfi->ch_usage[i].access; @@ -149,7 +149,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = dfi->ch_usage[busier_ch].access; + edata->load_count = dfi->ch_usage[busier_ch].access * 4; edata->total_count = dfi->ch_usage[busier_ch].total; return 0; -- 2.30.2
When adding perf support to the DFI driver the perf part will need the raw counter values, so move the fixed * 4 factor to rockchip_dfi_get_event(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index f317d3d063e9c..383fe8a17a512 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -97,7 +97,7 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { dfi->ch_usage[i].access = readl_relaxed(dfi_regs + - DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); tmp = dfi->ch_usage[i].access; @@ -149,7 +149,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = dfi->ch_usage[busier_ch].access; + edata->load_count = dfi->ch_usage[busier_ch].access * 4; edata->total_count = dfi->ch_usage[busier_ch].total; return 0; -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
When adding perf support to the DFI driver the perf part will need the raw counter values, so move the fixed * 4 factor to rockchip_dfi_get_event(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index f317d3d063e9c..383fe8a17a512 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -97,7 +97,7 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { dfi->ch_usage[i].access = readl_relaxed(dfi_regs + - DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); tmp = dfi->ch_usage[i].access; @@ -149,7 +149,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = dfi->ch_usage[busier_ch].access; + edata->load_count = dfi->ch_usage[busier_ch].access * 4; edata->total_count = dfi->ch_usage[busier_ch].total; return 0; -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The DDR_MON counters are free running counters. These are resetted to 0 when starting them over like currently done when reading the current counter values. Resetting the counters becomes a problem with perf support we want to add later, because perf needs a monotonicly increasing counter. This patch removes resetting the counters and keeps them running instead. Counter overflows are handled with modular arithmetics. Not stopping the counters also has the impact that they are running while we are reading them. We cannot read multiple timers atomically, so the values do not exactly fit together. The effect should be negligible though as the time between two measurements is some orders of magnitude bigger than the time we need to read multiple registers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 53 ++++++++++++++++------------ 1 file changed, 31 insertions(+), 22 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 383fe8a17a512..25d64d9166a9a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -38,11 +38,15 @@ #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 -struct dmc_usage { +struct dmc_count_channel { u32 access; u32 total; }; +struct dmc_count { + struct dmc_count_channel c[RK3399_DMC_NUM_CH]; +}; + /* * The dfi controller can monitor DDR load. It has an upper and lower threshold * for the operating points. Whenever the usage leaves these bounds an event is @@ -51,7 +55,8 @@ struct dmc_usage { struct rockchip_dfi { struct devfreq_event_dev *edev; struct devfreq_event_desc desc; - struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; + struct dmc_count count; + struct dmc_count last_event_count; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -85,30 +90,18 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } -static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) +static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - u32 tmp, max = 0; - u32 i, busier_ch = 0; + u32 i; void __iomem *dfi_regs = dfi->regs; - rockchip_dfi_stop_hardware_counter(edev); - - /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - dfi->ch_usage[i].access = readl_relaxed(dfi_regs + + count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - dfi->ch_usage[i].total = readl_relaxed(dfi_regs + + count->c[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = dfi->ch_usage[i].access; - if (tmp > max) { - busier_ch = i; - max = tmp; - } } - rockchip_dfi_start_hardware_counter(edev); - - return busier_ch; } static int rockchip_dfi_disable(struct devfreq_event_dev *edev) @@ -145,12 +138,28 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int busier_ch; + struct dmc_count count; + struct dmc_count *last = &dfi->last_event_count; + u32 access = 0, total = 0; + int i; + + rockchip_dfi_read_counters(edev, &count); + + /* We can only report one channel, so find the busiest one */ + for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + u32 a = count.c[i].access - last->c[i].access; + u32 t = count.c[i].total - last->c[i].total; + + if (a > access) { + access = a; + total = t; + } + } - busier_ch = rockchip_dfi_get_busier_ch(edev); + edata->load_count = access * 4; + edata->total_count = total; - edata->load_count = dfi->ch_usage[busier_ch].access * 4; - edata->total_count = dfi->ch_usage[busier_ch].total; + dfi->last_event_count = count; return 0; } -- 2.30.2
The DDR_MON counters are free running counters. These are resetted to 0 when starting them over like currently done when reading the current counter values. Resetting the counters becomes a problem with perf support we want to add later, because perf needs a monotonicly increasing counter. This patch removes resetting the counters and keeps them running instead. Counter overflows are handled with modular arithmetics. Not stopping the counters also has the impact that they are running while we are reading them. We cannot read multiple timers atomically, so the values do not exactly fit together. The effect should be negligible though as the time between two measurements is some orders of magnitude bigger than the time we need to read multiple registers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 53 ++++++++++++++++------------ 1 file changed, 31 insertions(+), 22 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 383fe8a17a512..25d64d9166a9a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -38,11 +38,15 @@ #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 -struct dmc_usage { +struct dmc_count_channel { u32 access; u32 total; }; +struct dmc_count { + struct dmc_count_channel c[RK3399_DMC_NUM_CH]; +}; + /* * The dfi controller can monitor DDR load. It has an upper and lower threshold * for the operating points. Whenever the usage leaves these bounds an event is @@ -51,7 +55,8 @@ struct dmc_usage { struct rockchip_dfi { struct devfreq_event_dev *edev; struct devfreq_event_desc desc; - struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; + struct dmc_count count; + struct dmc_count last_event_count; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -85,30 +90,18 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } -static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) +static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - u32 tmp, max = 0; - u32 i, busier_ch = 0; + u32 i; void __iomem *dfi_regs = dfi->regs; - rockchip_dfi_stop_hardware_counter(edev); - - /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - dfi->ch_usage[i].access = readl_relaxed(dfi_regs + + count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - dfi->ch_usage[i].total = readl_relaxed(dfi_regs + + count->c[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = dfi->ch_usage[i].access; - if (tmp > max) { - busier_ch = i; - max = tmp; - } } - rockchip_dfi_start_hardware_counter(edev); - - return busier_ch; } static int rockchip_dfi_disable(struct devfreq_event_dev *edev) @@ -145,12 +138,28 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int busier_ch; + struct dmc_count count; + struct dmc_count *last = &dfi->last_event_count; + u32 access = 0, total = 0; + int i; + + rockchip_dfi_read_counters(edev, &count); + + /* We can only report one channel, so find the busiest one */ + for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + u32 a = count.c[i].access - last->c[i].access; + u32 t = count.c[i].total - last->c[i].total; + + if (a > access) { + access = a; + total = t; + } + } - busier_ch = rockchip_dfi_get_busier_ch(edev); + edata->load_count = access * 4; + edata->total_count = total; - edata->load_count = dfi->ch_usage[busier_ch].access * 4; - edata->total_count = dfi->ch_usage[busier_ch].total; + dfi->last_event_count = count; return 0; } -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The DDR_MON counters are free running counters. These are resetted to 0 when starting them over like currently done when reading the current counter values. Resetting the counters becomes a problem with perf support we want to add later, because perf needs a monotonicly increasing counter. This patch removes resetting the counters and keeps them running instead. Counter overflows are handled with modular arithmetics. Not stopping the counters also has the impact that they are running while we are reading them. We cannot read multiple timers atomically, so the values do not exactly fit together. The effect should be negligible though as the time between two measurements is some orders of magnitude bigger than the time we need to read multiple registers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 53 ++++++++++++++++------------ 1 file changed, 31 insertions(+), 22 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 383fe8a17a512..25d64d9166a9a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -38,11 +38,15 @@ #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 -struct dmc_usage { +struct dmc_count_channel { u32 access; u32 total; }; +struct dmc_count { + struct dmc_count_channel c[RK3399_DMC_NUM_CH]; +}; + /* * The dfi controller can monitor DDR load. It has an upper and lower threshold * for the operating points. Whenever the usage leaves these bounds an event is @@ -51,7 +55,8 @@ struct dmc_usage { struct rockchip_dfi { struct devfreq_event_dev *edev; struct devfreq_event_desc desc; - struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; + struct dmc_count count; + struct dmc_count last_event_count; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -85,30 +90,18 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } -static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) +static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - u32 tmp, max = 0; - u32 i, busier_ch = 0; + u32 i; void __iomem *dfi_regs = dfi->regs; - rockchip_dfi_stop_hardware_counter(edev); - - /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - dfi->ch_usage[i].access = readl_relaxed(dfi_regs + + count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - dfi->ch_usage[i].total = readl_relaxed(dfi_regs + + count->c[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = dfi->ch_usage[i].access; - if (tmp > max) { - busier_ch = i; - max = tmp; - } } - rockchip_dfi_start_hardware_counter(edev); - - return busier_ch; } static int rockchip_dfi_disable(struct devfreq_event_dev *edev) @@ -145,12 +138,28 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int busier_ch; + struct dmc_count count; + struct dmc_count *last = &dfi->last_event_count; + u32 access = 0, total = 0; + int i; + + rockchip_dfi_read_counters(edev, &count); + + /* We can only report one channel, so find the busiest one */ + for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + u32 a = count.c[i].access - last->c[i].access; + u32 t = count.c[i].total - last->c[i].total; + + if (a > access) { + access = a; + total = t; + } + } - busier_ch = rockchip_dfi_get_busier_ch(edev); + edata->load_count = access * 4; + edata->total_count = total; - edata->load_count = dfi->ch_usage[busier_ch].access * 4; - edata->total_count = dfi->ch_usage[busier_ch].total; + dfi->last_event_count = count; return 0; } -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Different Rockchip SoC variants have a different number of channels. Introduce a channel mask to make the number of channels configurable from SoC initialization code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 25d64d9166a9a..18d578730fd0c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -21,7 +21,7 @@ #include <soc/rockchip/rk3399_grf.h> -#define RK3399_DMC_NUM_CH 2 +#define DMC_MAX_CHANNELS 2 /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 @@ -44,7 +44,7 @@ struct dmc_count_channel { }; struct dmc_count { - struct dmc_count_channel c[RK3399_DMC_NUM_CH]; + struct dmc_count_channel c[DMC_MAX_CHANNELS]; }; /* @@ -62,6 +62,7 @@ struct rockchip_dfi { struct regmap *regmap_pmu; struct clk *clk; u32 ddr_type; + unsigned int channel_mask; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) @@ -96,7 +97,9 @@ static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dm u32 i; void __iomem *dfi_regs = dfi->regs; - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -146,9 +149,14 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, rockchip_dfi_read_counters(edev, &count); /* We can only report one channel, so find the busiest one */ - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - u32 a = count.c[i].access - last->c[i].access; - u32 t = count.c[i].total - last->c[i].total; + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + u32 a, t; + + if (!(dfi->channel_mask & BIT(i))) + continue; + + a = count.c[i].access - last->c[i].access; + t = count.c[i].total - last->c[i].total; if (a > access) { access = a; @@ -186,6 +194,8 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; + dfi->channel_mask = 3; + return 0; }; -- 2.30.2
Different Rockchip SoC variants have a different number of channels. Introduce a channel mask to make the number of channels configurable from SoC initialization code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 25d64d9166a9a..18d578730fd0c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -21,7 +21,7 @@ #include <soc/rockchip/rk3399_grf.h> -#define RK3399_DMC_NUM_CH 2 +#define DMC_MAX_CHANNELS 2 /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 @@ -44,7 +44,7 @@ struct dmc_count_channel { }; struct dmc_count { - struct dmc_count_channel c[RK3399_DMC_NUM_CH]; + struct dmc_count_channel c[DMC_MAX_CHANNELS]; }; /* @@ -62,6 +62,7 @@ struct rockchip_dfi { struct regmap *regmap_pmu; struct clk *clk; u32 ddr_type; + unsigned int channel_mask; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) @@ -96,7 +97,9 @@ static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dm u32 i; void __iomem *dfi_regs = dfi->regs; - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -146,9 +149,14 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, rockchip_dfi_read_counters(edev, &count); /* We can only report one channel, so find the busiest one */ - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - u32 a = count.c[i].access - last->c[i].access; - u32 t = count.c[i].total - last->c[i].total; + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + u32 a, t; + + if (!(dfi->channel_mask & BIT(i))) + continue; + + a = count.c[i].access - last->c[i].access; + t = count.c[i].total - last->c[i].total; if (a > access) { access = a; @@ -186,6 +194,8 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; + dfi->channel_mask = 3; + return 0; }; -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
Different Rockchip SoC variants have a different number of channels. Introduce a channel mask to make the number of channels configurable from SoC initialization code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 25d64d9166a9a..18d578730fd0c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -21,7 +21,7 @@ #include <soc/rockchip/rk3399_grf.h> -#define RK3399_DMC_NUM_CH 2 +#define DMC_MAX_CHANNELS 2 /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 @@ -44,7 +44,7 @@ struct dmc_count_channel { }; struct dmc_count { - struct dmc_count_channel c[RK3399_DMC_NUM_CH]; + struct dmc_count_channel c[DMC_MAX_CHANNELS]; }; /* @@ -62,6 +62,7 @@ struct rockchip_dfi { struct regmap *regmap_pmu; struct clk *clk; u32 ddr_type; + unsigned int channel_mask; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) @@ -96,7 +97,9 @@ static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dm u32 i; void __iomem *dfi_regs = dfi->regs; - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -146,9 +149,14 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, rockchip_dfi_read_counters(edev, &count); /* We can only report one channel, so find the busiest one */ - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - u32 a = count.c[i].access - last->c[i].access; - u32 t = count.c[i].total - last->c[i].total; + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + u32 a, t; + + if (!(dfi->channel_mask & BIT(i))) + continue; + + a = count.c[i].access - last->c[i].access; + t = count.c[i].total - last->c[i].total; if (a > access) { access = a; @@ -186,6 +194,8 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; + dfi->channel_mask = 3; + return 0; }; -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The DDRTYPE defines are named to be RK3399 specific, but they can be used for other Rockchip SoCs as well, so replace the RK3399_PMUGRF_ prefix with ROCKCHIP_. They are defined in a SoC specific header file, so when generalizing the prefix also move the new defines to a SoC agnostic header file. While at it use GENMASK to define the DDRTYPE bitfield and give it a name including the full register name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 10 ++++++---- drivers/devfreq/rk3399_dmc.c | 10 +++++----- include/soc/rockchip/rk3399_grf.h | 7 +------ include/soc/rockchip/rockchip_grf.h | 15 +++++++++++++++ 4 files changed, 27 insertions(+), 15 deletions(-) create mode 100644 include/soc/rockchip/rockchip_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 18d578730fd0c..7896cd8beb143 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -18,7 +18,10 @@ #include <linux/list.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #define DMC_MAX_CHANNELS 2 @@ -74,9 +77,9 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -191,8 +194,7 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) /* get ddr type */ regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + dfi->ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); dfi->channel_mask = 3; diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index daff407026157..fd2c5ffedf41e 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -22,6 +22,7 @@ #include <linux/suspend.h> #include <soc/rockchip/pm_domains.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #include <soc/rockchip/rockchip_sip.h> @@ -381,17 +382,16 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) } regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); switch (ddr_type) { - case RK3399_PMUGRF_DDRTYPE_DDR3: + case ROCKCHIP_DDRTYPE_DDR3: data->odt_dis_freq = data->ddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR3: + case ROCKCHIP_DDRTYPE_LPDDR3: data->odt_dis_freq = data->lpddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4: data->odt_dis_freq = data->lpddr4_odt_dis_freq; break; default: diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 3eebabcb28123..775f8444bea8d 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -11,11 +11,6 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 -#define RK3399_PMUGRF_DDRTYPE_SHIFT 13 -#define RK3399_PMUGRF_DDRTYPE_MASK 7 -#define RK3399_PMUGRF_DDRTYPE_DDR3 3 -#define RK3399_PMUGRF_DDRTYPE_LPDDR2 5 -#define RK3399_PMUGRF_DDRTYPE_LPDDR3 6 -#define RK3399_PMUGRF_DDRTYPE_LPDDR4 7 +#define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) #endif diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h new file mode 100644 index 0000000000000..dc77bb762a05a --- /dev/null +++ b/include/soc/rockchip/rockchip_grf.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Rockchip General Register Files definitions + */ + +#ifndef __SOC_ROCKCHIP_GRF_H +#define __SOC_ROCKCHIP_GRF_H + +/* Rockchip DDRTYPE defines */ +#define ROCKCHIP_DDRTYPE_DDR3 3 +#define ROCKCHIP_DDRTYPE_LPDDR2 5 +#define ROCKCHIP_DDRTYPE_LPDDR3 6 +#define ROCKCHIP_DDRTYPE_LPDDR4 7 + +#endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2
The DDRTYPE defines are named to be RK3399 specific, but they can be used for other Rockchip SoCs as well, so replace the RK3399_PMUGRF_ prefix with ROCKCHIP_. They are defined in a SoC specific header file, so when generalizing the prefix also move the new defines to a SoC agnostic header file. While at it use GENMASK to define the DDRTYPE bitfield and give it a name including the full register name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 10 ++++++---- drivers/devfreq/rk3399_dmc.c | 10 +++++----- include/soc/rockchip/rk3399_grf.h | 7 +------ include/soc/rockchip/rockchip_grf.h | 15 +++++++++++++++ 4 files changed, 27 insertions(+), 15 deletions(-) create mode 100644 include/soc/rockchip/rockchip_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 18d578730fd0c..7896cd8beb143 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -18,7 +18,10 @@ #include <linux/list.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #define DMC_MAX_CHANNELS 2 @@ -74,9 +77,9 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -191,8 +194,7 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) /* get ddr type */ regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + dfi->ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); dfi->channel_mask = 3; diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index daff407026157..fd2c5ffedf41e 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -22,6 +22,7 @@ #include <linux/suspend.h> #include <soc/rockchip/pm_domains.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #include <soc/rockchip/rockchip_sip.h> @@ -381,17 +382,16 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) } regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); switch (ddr_type) { - case RK3399_PMUGRF_DDRTYPE_DDR3: + case ROCKCHIP_DDRTYPE_DDR3: data->odt_dis_freq = data->ddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR3: + case ROCKCHIP_DDRTYPE_LPDDR3: data->odt_dis_freq = data->lpddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4: data->odt_dis_freq = data->lpddr4_odt_dis_freq; break; default: diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 3eebabcb28123..775f8444bea8d 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -11,11 +11,6 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 -#define RK3399_PMUGRF_DDRTYPE_SHIFT 13 -#define RK3399_PMUGRF_DDRTYPE_MASK 7 -#define RK3399_PMUGRF_DDRTYPE_DDR3 3 -#define RK3399_PMUGRF_DDRTYPE_LPDDR2 5 -#define RK3399_PMUGRF_DDRTYPE_LPDDR3 6 -#define RK3399_PMUGRF_DDRTYPE_LPDDR4 7 +#define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) #endif diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h new file mode 100644 index 0000000000000..dc77bb762a05a --- /dev/null +++ b/include/soc/rockchip/rockchip_grf.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Rockchip General Register Files definitions + */ + +#ifndef __SOC_ROCKCHIP_GRF_H +#define __SOC_ROCKCHIP_GRF_H + +/* Rockchip DDRTYPE defines */ +#define ROCKCHIP_DDRTYPE_DDR3 3 +#define ROCKCHIP_DDRTYPE_LPDDR2 5 +#define ROCKCHIP_DDRTYPE_LPDDR3 6 +#define ROCKCHIP_DDRTYPE_LPDDR4 7 + +#endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The DDRTYPE defines are named to be RK3399 specific, but they can be used for other Rockchip SoCs as well, so replace the RK3399_PMUGRF_ prefix with ROCKCHIP_. They are defined in a SoC specific header file, so when generalizing the prefix also move the new defines to a SoC agnostic header file. While at it use GENMASK to define the DDRTYPE bitfield and give it a name including the full register name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 10 ++++++---- drivers/devfreq/rk3399_dmc.c | 10 +++++----- include/soc/rockchip/rk3399_grf.h | 7 +------ include/soc/rockchip/rockchip_grf.h | 15 +++++++++++++++ 4 files changed, 27 insertions(+), 15 deletions(-) create mode 100644 include/soc/rockchip/rockchip_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 18d578730fd0c..7896cd8beb143 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -18,7 +18,10 @@ #include <linux/list.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #define DMC_MAX_CHANNELS 2 @@ -74,9 +77,9 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -191,8 +194,7 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) /* get ddr type */ regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + dfi->ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); dfi->channel_mask = 3; diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index daff407026157..fd2c5ffedf41e 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -22,6 +22,7 @@ #include <linux/suspend.h> #include <soc/rockchip/pm_domains.h> +#include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> #include <soc/rockchip/rockchip_sip.h> @@ -381,17 +382,16 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) } regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); switch (ddr_type) { - case RK3399_PMUGRF_DDRTYPE_DDR3: + case ROCKCHIP_DDRTYPE_DDR3: data->odt_dis_freq = data->ddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR3: + case ROCKCHIP_DDRTYPE_LPDDR3: data->odt_dis_freq = data->lpddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4: data->odt_dis_freq = data->lpddr4_odt_dis_freq; break; default: diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 3eebabcb28123..775f8444bea8d 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -11,11 +11,6 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 -#define RK3399_PMUGRF_DDRTYPE_SHIFT 13 -#define RK3399_PMUGRF_DDRTYPE_MASK 7 -#define RK3399_PMUGRF_DDRTYPE_DDR3 3 -#define RK3399_PMUGRF_DDRTYPE_LPDDR2 5 -#define RK3399_PMUGRF_DDRTYPE_LPDDR3 6 -#define RK3399_PMUGRF_DDRTYPE_LPDDR4 7 +#define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) #endif diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h new file mode 100644 index 0000000000000..dc77bb762a05a --- /dev/null +++ b/include/soc/rockchip/rockchip_grf.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Rockchip General Register Files definitions + */ + +#ifndef __SOC_ROCKCHIP_GRF_H +#define __SOC_ROCKCHIP_GRF_H + +/* Rockchip DDRTYPE defines */ +#define ROCKCHIP_DDRTYPE_DDR3 3 +#define ROCKCHIP_DDRTYPE_LPDDR2 5 +#define ROCKCHIP_DDRTYPE_LPDDR3 6 +#define ROCKCHIP_DDRTYPE_LPDDR4 7 + +#endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Use the HIWORD_UPDATE() define known from other rockchip drivers to make the defines look less odd to the readers who've seen other rockchip drivers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 32 +++++++++++++++++----------- 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 7896cd8beb143..035984d3c7b01 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -26,15 +26,19 @@ #define DMC_MAX_CHANNELS 2 +#define HIWORD_UPDATE(val, mask) ((val) | (mask) << 16) + /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 -#define CLR_DDRMON_CTRL (0x1f0000 << 0) -#define LPDDR4_EN (0x10001 << 4) -#define HARDWARE_EN (0x10001 << 3) -#define LPDDR3_EN (0x10001 << 2) -#define SOFTWARE_EN (0x10001 << 1) -#define SOFTWARE_DIS (0x10000 << 1) -#define TIME_CNT_EN (0x10001 << 0) +#define DDRMON_CTRL_DDR4 BIT(5) +#define DDRMON_CTRL_LPDDR4 BIT(4) +#define DDRMON_CTRL_HARDWARE_EN BIT(3) +#define DDRMON_CTRL_LPDDR23 BIT(2) +#define DDRMON_CTRL_SOFTWARE_EN BIT(1) +#define DDRMON_CTRL_TIMER_CNT_EN BIT(0) +#define DDRMON_CTRL_DDR_TYPE_MASK (DDRMON_CTRL_DDR4 | \ + DDRMON_CTRL_LPDDR4 | \ + DDRMON_CTRL_LPDDR23) #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c @@ -74,16 +78,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ - writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) - writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) - writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ - writel_relaxed(SOFTWARE_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) @@ -91,7 +98,8 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) -- 2.30.2
Use the HIWORD_UPDATE() define known from other rockchip drivers to make the defines look less odd to the readers who've seen other rockchip drivers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 32 +++++++++++++++++----------- 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 7896cd8beb143..035984d3c7b01 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -26,15 +26,19 @@ #define DMC_MAX_CHANNELS 2 +#define HIWORD_UPDATE(val, mask) ((val) | (mask) << 16) + /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 -#define CLR_DDRMON_CTRL (0x1f0000 << 0) -#define LPDDR4_EN (0x10001 << 4) -#define HARDWARE_EN (0x10001 << 3) -#define LPDDR3_EN (0x10001 << 2) -#define SOFTWARE_EN (0x10001 << 1) -#define SOFTWARE_DIS (0x10000 << 1) -#define TIME_CNT_EN (0x10001 << 0) +#define DDRMON_CTRL_DDR4 BIT(5) +#define DDRMON_CTRL_LPDDR4 BIT(4) +#define DDRMON_CTRL_HARDWARE_EN BIT(3) +#define DDRMON_CTRL_LPDDR23 BIT(2) +#define DDRMON_CTRL_SOFTWARE_EN BIT(1) +#define DDRMON_CTRL_TIMER_CNT_EN BIT(0) +#define DDRMON_CTRL_DDR_TYPE_MASK (DDRMON_CTRL_DDR4 | \ + DDRMON_CTRL_LPDDR4 | \ + DDRMON_CTRL_LPDDR23) #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c @@ -74,16 +78,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ - writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) - writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) - writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ - writel_relaxed(SOFTWARE_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) @@ -91,7 +98,8 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Use the HIWORD_UPDATE() define known from other rockchip drivers to make the defines look less odd to the readers who've seen other rockchip drivers. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 32 +++++++++++++++++----------- 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 7896cd8beb143..035984d3c7b01 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -26,15 +26,19 @@ #define DMC_MAX_CHANNELS 2 +#define HIWORD_UPDATE(val, mask) ((val) | (mask) << 16) + /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 -#define CLR_DDRMON_CTRL (0x1f0000 << 0) -#define LPDDR4_EN (0x10001 << 4) -#define HARDWARE_EN (0x10001 << 3) -#define LPDDR3_EN (0x10001 << 2) -#define SOFTWARE_EN (0x10001 << 1) -#define SOFTWARE_DIS (0x10000 << 1) -#define TIME_CNT_EN (0x10001 << 0) +#define DDRMON_CTRL_DDR4 BIT(5) +#define DDRMON_CTRL_LPDDR4 BIT(4) +#define DDRMON_CTRL_HARDWARE_EN BIT(3) +#define DDRMON_CTRL_LPDDR23 BIT(2) +#define DDRMON_CTRL_SOFTWARE_EN BIT(1) +#define DDRMON_CTRL_TIMER_CNT_EN BIT(0) +#define DDRMON_CTRL_DDR_TYPE_MASK (DDRMON_CTRL_DDR4 | \ + DDRMON_CTRL_LPDDR4 | \ + DDRMON_CTRL_LPDDR23) #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c @@ -74,16 +78,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ - writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) - writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) - writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ - writel_relaxed(SOFTWARE_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) @@ -91,7 +98,8 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
This adds RK3568 support to the DFI driver. The driver itself doesn't need a change, only initialization differs from the currently supported RK3399. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 24 ++++++++++++++++++++++++ include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 include/soc/rockchip/rk3568_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 035984d3c7b01..78cb594bd2a81 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -23,6 +23,7 @@ #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> +#include <soc/rockchip/rk3568_grf.h> #define DMC_MAX_CHANNELS 2 @@ -209,6 +210,24 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) return 0; }; +static int rk3568_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3; + + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3); + + dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->channel_mask = 1; + + return 0; +}; + struct rockchip_dfi_devtype_data { int (*init)(struct rockchip_dfi *dfi); }; @@ -217,8 +236,13 @@ static struct rockchip_dfi_devtype_data rk3399_devtype_data = { .init = rk3399_dfi_init, }; +static struct rockchip_dfi_devtype_data rk3568_devtype_data = { + .init = rk3568_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, + { .compatible = "rockchip,rk3568-dfi", .data = &rk3568_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h new file mode 100644 index 0000000000000..575584e9d8834 --- /dev/null +++ b/include/soc/rockchip/rk3568_grf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3568_GRF_H +#define __SOC_RK3568_GRF_H + +#define RK3568_PMUGRF_OS_REG2 0x208 +#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) + +#define RK3568_PMUGRF_OS_REG3 0x20c +#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#endif /* __SOC_RK3568_GRF_H */ -- 2.30.2
This adds RK3568 support to the DFI driver. The driver itself doesn't need a change, only initialization differs from the currently supported RK3399. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 24 ++++++++++++++++++++++++ include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 include/soc/rockchip/rk3568_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 035984d3c7b01..78cb594bd2a81 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -23,6 +23,7 @@ #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> +#include <soc/rockchip/rk3568_grf.h> #define DMC_MAX_CHANNELS 2 @@ -209,6 +210,24 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) return 0; }; +static int rk3568_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3; + + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3); + + dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->channel_mask = 1; + + return 0; +}; + struct rockchip_dfi_devtype_data { int (*init)(struct rockchip_dfi *dfi); }; @@ -217,8 +236,13 @@ static struct rockchip_dfi_devtype_data rk3399_devtype_data = { .init = rk3399_dfi_init, }; +static struct rockchip_dfi_devtype_data rk3568_devtype_data = { + .init = rk3568_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, + { .compatible = "rockchip,rk3568-dfi", .data = &rk3568_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h new file mode 100644 index 0000000000000..575584e9d8834 --- /dev/null +++ b/include/soc/rockchip/rk3568_grf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3568_GRF_H +#define __SOC_RK3568_GRF_H + +#define RK3568_PMUGRF_OS_REG2 0x208 +#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) + +#define RK3568_PMUGRF_OS_REG3 0x20c +#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#endif /* __SOC_RK3568_GRF_H */ -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
This adds RK3568 support to the DFI driver. The driver itself doesn't need a change, only initialization differs from the currently supported RK3399. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 24 ++++++++++++++++++++++++ include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 include/soc/rockchip/rk3568_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 035984d3c7b01..78cb594bd2a81 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -23,6 +23,7 @@ #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> +#include <soc/rockchip/rk3568_grf.h> #define DMC_MAX_CHANNELS 2 @@ -209,6 +210,24 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) return 0; }; +static int rk3568_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3; + + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3); + + dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->channel_mask = 1; + + return 0; +}; + struct rockchip_dfi_devtype_data { int (*init)(struct rockchip_dfi *dfi); }; @@ -217,8 +236,13 @@ static struct rockchip_dfi_devtype_data rk3399_devtype_data = { .init = rk3399_dfi_init, }; +static struct rockchip_dfi_devtype_data rk3568_devtype_data = { + .init = rk3568_dfi_init, +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = &rk3399_devtype_data }, + { .compatible = "rockchip,rk3568-dfi", .data = &rk3568_devtype_data }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h new file mode 100644 index 0000000000000..575584e9d8834 --- /dev/null +++ b/include/soc/rockchip/rk3568_grf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3568_GRF_H +#define __SOC_RK3568_GRF_H + +#define RK3568_PMUGRF_OS_REG2 0x208 +#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) + +#define RK3568_PMUGRF_OS_REG3 0x20c +#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#endif /* __SOC_RK3568_GRF_H */ -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while at it turn the if/else if/else into switch/case which makes it easier to read. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 78cb594bd2a81..92ee61c96a1a9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -82,12 +82,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) + break; + case ROCKCHIP_DDRTYPE_LPDDR4: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); + break; + default: + break; + } /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), -- 2.30.2
According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while at it turn the if/else if/else into switch/case which makes it easier to read. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 78cb594bd2a81..92ee61c96a1a9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -82,12 +82,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) + break; + case ROCKCHIP_DDRTYPE_LPDDR4: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); + break; + default: + break; + } /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while at it turn the if/else if/else into switch/case which makes it easier to read. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 78cb594bd2a81..92ee61c96a1a9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -82,12 +82,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) + break; + case ROCKCHIP_DDRTYPE_LPDDR4: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); + break; + default: + break; + } /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
In the DFI driver LPDDR4X can be handled in the same way as LPDDR4. Add the missing case. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 1 + include/soc/rockchip/rockchip_grf.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 92ee61c96a1a9..dc48d9c26f599 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -89,6 +89,7 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); break; case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); break; diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h index dc77bb762a05a..7150a3362b142 100644 --- a/include/soc/rockchip/rockchip_grf.h +++ b/include/soc/rockchip/rockchip_grf.h @@ -11,5 +11,6 @@ #define ROCKCHIP_DDRTYPE_LPDDR2 5 #define ROCKCHIP_DDRTYPE_LPDDR3 6 #define ROCKCHIP_DDRTYPE_LPDDR4 7 +#define ROCKCHIP_DDRTYPE_LPDDR4X 8 #endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2
In the DFI driver LPDDR4X can be handled in the same way as LPDDR4. Add the missing case. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 1 + include/soc/rockchip/rockchip_grf.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 92ee61c96a1a9..dc48d9c26f599 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -89,6 +89,7 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); break; case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); break; diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h index dc77bb762a05a..7150a3362b142 100644 --- a/include/soc/rockchip/rockchip_grf.h +++ b/include/soc/rockchip/rockchip_grf.h @@ -11,5 +11,6 @@ #define ROCKCHIP_DDRTYPE_LPDDR2 5 #define ROCKCHIP_DDRTYPE_LPDDR3 6 #define ROCKCHIP_DDRTYPE_LPDDR4 7 +#define ROCKCHIP_DDRTYPE_LPDDR4X 8 #endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
In the DFI driver LPDDR4X can be handled in the same way as LPDDR4. Add the missing case. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 1 + include/soc/rockchip/rockchip_grf.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 92ee61c96a1a9..dc48d9c26f599 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -89,6 +89,7 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); break; case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); break; diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h index dc77bb762a05a..7150a3362b142 100644 --- a/include/soc/rockchip/rockchip_grf.h +++ b/include/soc/rockchip/rockchip_grf.h @@ -11,5 +11,6 @@ #define ROCKCHIP_DDRTYPE_LPDDR2 5 #define ROCKCHIP_DDRTYPE_LPDDR3 6 #define ROCKCHIP_DDRTYPE_LPDDR4 7 +#define ROCKCHIP_DDRTYPE_LPDDR4X 8 #endif /* __SOC_ROCKCHIP_GRF_H */ -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The internal functions do not need the struct devfreq_event_dev *, so pass them the struct rockchip_dfi *. This is a preparation for adding perf support later which doesn't have a struct devfreq_event_dev *. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index dc48d9c26f599..c0b7b1e9805e9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -73,9 +73,8 @@ struct rockchip_dfi { unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ @@ -102,18 +101,16 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) +static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 i; void __iomem *dfi_regs = dfi->regs; @@ -131,7 +128,7 @@ static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(edev); + rockchip_dfi_stop_hardware_counter(dfi); clk_disable_unprepare(dfi->clk); return 0; @@ -148,7 +145,7 @@ static int rockchip_dfi_enable(struct devfreq_event_dev *edev) return ret; } - rockchip_dfi_start_hardware_counter(edev); + rockchip_dfi_start_hardware_counter(dfi); return 0; } @@ -166,7 +163,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, u32 access = 0, total = 0; int i; - rockchip_dfi_read_counters(edev, &count); + rockchip_dfi_read_counters(dfi, &count); /* We can only report one channel, so find the busiest one */ for (i = 0; i < DMC_MAX_CHANNELS; i++) { -- 2.30.2
The internal functions do not need the struct devfreq_event_dev *, so pass them the struct rockchip_dfi *. This is a preparation for adding perf support later which doesn't have a struct devfreq_event_dev *. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index dc48d9c26f599..c0b7b1e9805e9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -73,9 +73,8 @@ struct rockchip_dfi { unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ @@ -102,18 +101,16 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) +static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 i; void __iomem *dfi_regs = dfi->regs; @@ -131,7 +128,7 @@ static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(edev); + rockchip_dfi_stop_hardware_counter(dfi); clk_disable_unprepare(dfi->clk); return 0; @@ -148,7 +145,7 @@ static int rockchip_dfi_enable(struct devfreq_event_dev *edev) return ret; } - rockchip_dfi_start_hardware_counter(edev); + rockchip_dfi_start_hardware_counter(dfi); return 0; } @@ -166,7 +163,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, u32 access = 0, total = 0; int i; - rockchip_dfi_read_counters(edev, &count); + rockchip_dfi_read_counters(dfi, &count); /* We can only report one channel, so find the busiest one */ for (i = 0; i < DMC_MAX_CHANNELS; i++) { -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The internal functions do not need the struct devfreq_event_dev *, so pass them the struct rockchip_dfi *. This is a preparation for adding perf support later which doesn't have a struct devfreq_event_dev *. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index dc48d9c26f599..c0b7b1e9805e9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -73,9 +73,8 @@ struct rockchip_dfi { unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ @@ -102,18 +101,16 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) +static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 i; void __iomem *dfi_regs = dfi->regs; @@ -131,7 +128,7 @@ static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(edev); + rockchip_dfi_stop_hardware_counter(dfi); clk_disable_unprepare(dfi->clk); return 0; @@ -148,7 +145,7 @@ static int rockchip_dfi_enable(struct devfreq_event_dev *edev) return ret; } - rockchip_dfi_start_hardware_counter(edev); + rockchip_dfi_start_hardware_counter(dfi); return 0; } @@ -166,7 +163,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, u32 access = 0, total = 0; int i; - rockchip_dfi_read_counters(edev, &count); + rockchip_dfi_read_counters(dfi, &count); /* We can only report one channel, so find the busiest one */ for (i = 0; i < DMC_MAX_CHANNELS; i++) { -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
When adding perf support later the DFI must be enabled when either of devfreq-event or perf is active. Prepare for that by adding a usage counter for the DFI. Also move enabling and disabling of the clock away from the devfreq-event specific functions to which the perf specific part won't have access. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 57 +++++++++++++++++++--------- 1 file changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index c0b7b1e9805e9..eae010644935a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -69,13 +69,28 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + int usecount; + struct mutex mutex; u32 ddr_type; unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) +static int rockchip_dfi_enable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + int ret = 0; + + mutex_lock(&dfi->mutex); + + dfi->usecount++; + if (dfi->usecount > 1) + goto out; + + ret = clk_prepare_enable(dfi->clk); + if (ret) { + dev_err(&dfi->edev->dev, "failed to enable dfi clk: %d\n", ret); + goto out; + } /* clear DDRMON_CTRL setting */ writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); @@ -99,14 +114,30 @@ static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); +out: + mutex_unlock(&dfi->mutex); + + return ret; } -static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) +static void rockchip_dfi_disable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + mutex_lock(&dfi->mutex); + + dfi->usecount--; + + WARN_ON_ONCE(dfi->usecount < 0); + + if (dfi->usecount > 0) + goto out; + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); + clk_disable_unprepare(dfi->clk); +out: + mutex_unlock(&dfi->mutex); } static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) @@ -124,29 +155,20 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun } } -static int rockchip_dfi_disable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(dfi); - clk_disable_unprepare(dfi->clk); + rockchip_dfi_disable(dfi); return 0; } -static int rockchip_dfi_enable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_enable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int ret; - - ret = clk_prepare_enable(dfi->clk); - if (ret) { - dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); - return ret; - } - rockchip_dfi_start_hardware_counter(dfi); - return 0; + return rockchip_dfi_enable(dfi); } static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) @@ -190,8 +212,8 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, } static const struct devfreq_event_ops rockchip_dfi_ops = { - .disable = rockchip_dfi_disable, - .enable = rockchip_dfi_enable, + .disable = rockchip_dfi_event_disable, + .enable = rockchip_dfi_event_enable, .get_event = rockchip_dfi_get_event, .set_event = rockchip_dfi_set_event, }; @@ -285,6 +307,7 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->regmap_pmu); dfi->dev = dev; + mutex_init(&dfi->mutex); desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; -- 2.30.2
When adding perf support later the DFI must be enabled when either of devfreq-event or perf is active. Prepare for that by adding a usage counter for the DFI. Also move enabling and disabling of the clock away from the devfreq-event specific functions to which the perf specific part won't have access. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 57 +++++++++++++++++++--------- 1 file changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index c0b7b1e9805e9..eae010644935a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -69,13 +69,28 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + int usecount; + struct mutex mutex; u32 ddr_type; unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) +static int rockchip_dfi_enable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + int ret = 0; + + mutex_lock(&dfi->mutex); + + dfi->usecount++; + if (dfi->usecount > 1) + goto out; + + ret = clk_prepare_enable(dfi->clk); + if (ret) { + dev_err(&dfi->edev->dev, "failed to enable dfi clk: %d\n", ret); + goto out; + } /* clear DDRMON_CTRL setting */ writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); @@ -99,14 +114,30 @@ static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); +out: + mutex_unlock(&dfi->mutex); + + return ret; } -static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) +static void rockchip_dfi_disable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + mutex_lock(&dfi->mutex); + + dfi->usecount--; + + WARN_ON_ONCE(dfi->usecount < 0); + + if (dfi->usecount > 0) + goto out; + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); + clk_disable_unprepare(dfi->clk); +out: + mutex_unlock(&dfi->mutex); } static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) @@ -124,29 +155,20 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun } } -static int rockchip_dfi_disable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(dfi); - clk_disable_unprepare(dfi->clk); + rockchip_dfi_disable(dfi); return 0; } -static int rockchip_dfi_enable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_enable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int ret; - - ret = clk_prepare_enable(dfi->clk); - if (ret) { - dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); - return ret; - } - rockchip_dfi_start_hardware_counter(dfi); - return 0; + return rockchip_dfi_enable(dfi); } static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) @@ -190,8 +212,8 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, } static const struct devfreq_event_ops rockchip_dfi_ops = { - .disable = rockchip_dfi_disable, - .enable = rockchip_dfi_enable, + .disable = rockchip_dfi_event_disable, + .enable = rockchip_dfi_event_enable, .get_event = rockchip_dfi_get_event, .set_event = rockchip_dfi_set_event, }; @@ -285,6 +307,7 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->regmap_pmu); dfi->dev = dev; + mutex_init(&dfi->mutex); desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
When adding perf support later the DFI must be enabled when either of devfreq-event or perf is active. Prepare for that by adding a usage counter for the DFI. Also move enabling and disabling of the clock away from the devfreq-event specific functions to which the perf specific part won't have access. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 57 +++++++++++++++++++--------- 1 file changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index c0b7b1e9805e9..eae010644935a 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -69,13 +69,28 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + int usecount; + struct mutex mutex; u32 ddr_type; unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) +static int rockchip_dfi_enable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + int ret = 0; + + mutex_lock(&dfi->mutex); + + dfi->usecount++; + if (dfi->usecount > 1) + goto out; + + ret = clk_prepare_enable(dfi->clk); + if (ret) { + dev_err(&dfi->edev->dev, "failed to enable dfi clk: %d\n", ret); + goto out; + } /* clear DDRMON_CTRL setting */ writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); @@ -99,14 +114,30 @@ static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); +out: + mutex_unlock(&dfi->mutex); + + return ret; } -static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) +static void rockchip_dfi_disable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + mutex_lock(&dfi->mutex); + + dfi->usecount--; + + WARN_ON_ONCE(dfi->usecount < 0); + + if (dfi->usecount > 0) + goto out; + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); + clk_disable_unprepare(dfi->clk); +out: + mutex_unlock(&dfi->mutex); } static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) @@ -124,29 +155,20 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun } } -static int rockchip_dfi_disable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(dfi); - clk_disable_unprepare(dfi->clk); + rockchip_dfi_disable(dfi); return 0; } -static int rockchip_dfi_enable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_enable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int ret; - - ret = clk_prepare_enable(dfi->clk); - if (ret) { - dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); - return ret; - } - rockchip_dfi_start_hardware_counter(dfi); - return 0; + return rockchip_dfi_enable(dfi); } static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) @@ -190,8 +212,8 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, } static const struct devfreq_event_ops rockchip_dfi_ops = { - .disable = rockchip_dfi_disable, - .enable = rockchip_dfi_enable, + .disable = rockchip_dfi_event_disable, + .enable = rockchip_dfi_event_enable, .get_event = rockchip_dfi_get_event, .set_event = rockchip_dfi_set_event, }; @@ -285,6 +307,7 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->regmap_pmu); dfi->dev = dev; + mutex_init(&dfi->mutex); desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The DFI is a unit which is suitable for measuring DDR utilization, but so far it could only be used as an event driver for the DDR frequency scaling driver. This adds perf support to the DFI driver. Usage with the 'perf' tool can look like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed perf support has been tested on a RK3568 and a RK3399, the latter with dual channel DDR. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 349 +++++++++++++++++++++++++++ include/soc/rockchip/rk3399_grf.h | 2 + include/soc/rockchip/rk3568_grf.h | 1 + 3 files changed, 352 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index eae010644935a..400b1b360e3c9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -20,6 +20,7 @@ #include <linux/of_device.h> #include <linux/bitfield.h> #include <linux/bits.h> +#include <linux/perf_event.h> #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> @@ -41,14 +42,30 @@ DDRMON_CTRL_LPDDR4 | \ DDRMON_CTRL_LPDDR23) +#define DDRMON_CH0_WR_NUM 0x20 +#define DDRMON_CH0_RD_NUM 0x24 #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 +enum access_type { + PERF_EVENT_CYCLES, + PERF_EVENT_READ_BYTES, + PERF_EVENT_WRITE_BYTES, + PERF_EVENT_BYTES, + PERF_ACCESS_TYPE_MAX, +}; + struct dmc_count_channel { u32 access; u32 total; + u32 read_access; + u32 write_access; +}; + +struct dmc_count_channel64 { + u64 count[PERF_ACCESS_TYPE_MAX]; }; struct dmc_count { @@ -65,6 +82,7 @@ struct rockchip_dfi { struct devfreq_event_desc desc; struct dmc_count count; struct dmc_count last_event_count; + struct dmc_count last; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -73,6 +91,15 @@ struct rockchip_dfi { struct mutex mutex; u32 ddr_type; unsigned int channel_mask; + enum cpuhp_state cpuhp_state; + struct hlist_node node; + struct pmu pmu; + struct hrtimer timer; + unsigned int cpu; + struct dmc_count_channel64 frr; + int active_events; + int burst_len; + int buswidth[DMC_MAX_CHANNELS]; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) @@ -148,6 +175,10 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun for (i = 0; i < DMC_MAX_CHANNELS; i++) { if (!(dfi->channel_mask & BIT(i))) continue; + count->c[i].read_access = readl_relaxed(dfi_regs + + DDRMON_CH0_RD_NUM + i * 20); + count->c[i].write_access = readl_relaxed(dfi_regs + + DDRMON_CH0_WR_NUM + i * 20); count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -218,6 +249,305 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +#ifdef CONFIG_PERF_EVENTS + +static ssize_t ddr_perf_cpumask_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct pmu *pmu = dev_get_drvdata(dev); + struct rockchip_dfi *dfi = container_of(pmu, struct rockchip_dfi, pmu); + + return cpumap_print_to_pagebuf(true, buf, cpumask_of(dfi->cpu)); +} + +static struct device_attribute ddr_perf_cpumask_attr = + __ATTR(cpumask, 0444, ddr_perf_cpumask_show, NULL); + +static struct attribute *ddr_perf_cpumask_attrs[] = { + &ddr_perf_cpumask_attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_cpumask_attr_group = { + .attrs = ddr_perf_cpumask_attrs, +}; + +PMU_EVENT_ATTR_STRING(cycles, ddr_pmu_cycles, "event=0x00") + +PMU_EVENT_ATTR_STRING(read-bytes, ddr_pmu_read_bytes, "event=0x01") +PMU_EVENT_ATTR_STRING(read-bytes.unit, ddr_pmu_read_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(read-bytes.scale, ddr_pmu_read_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(write-bytes, ddr_pmu_write_bytes, "event=0x02") +PMU_EVENT_ATTR_STRING(write-bytes.unit, ddr_pmu_write_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(write-bytes.scale, ddr_pmu_write_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(bytes, ddr_pmu_bytes, "event=0x03") +PMU_EVENT_ATTR_STRING(bytes.unit, ddr_pmu_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(bytes.scale, ddr_pmu_bytes_scale, "9.536743164e-07"); + +static struct attribute *ddr_perf_events_attrs[] = { + &ddr_pmu_cycles.attr.attr, + &ddr_pmu_read_bytes.attr.attr, + &ddr_pmu_read_bytes_unit.attr.attr, + &ddr_pmu_read_bytes_scale.attr.attr, + &ddr_pmu_write_bytes.attr.attr, + &ddr_pmu_write_bytes_unit.attr.attr, + &ddr_pmu_write_bytes_scale.attr.attr, + &ddr_pmu_bytes.attr.attr, + &ddr_pmu_bytes_unit.attr.attr, + &ddr_pmu_bytes_scale.attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_events_attr_group = { + .name = "events", + .attrs = ddr_perf_events_attrs, +}; + +PMU_FORMAT_ATTR(event, "config:0-7"); + +static struct attribute *ddr_perf_format_attrs[] = { + &format_attr_event.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_format_attr_group = { + .name = "format", + .attrs = ddr_perf_format_attrs, +}; + +static const struct attribute_group *attr_groups[] = { + &ddr_perf_events_attr_group, + &ddr_perf_cpumask_attr_group, + &ddr_perf_format_attr_group, + NULL, +}; + +static int rockchip_ddr_perf_event_init(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + if (event->attach_state & PERF_ATTACH_TASK) + return -EOPNOTSUPP; + + if (event->cpu < 0) { + dev_warn(dfi->dev, "Can't provide per-task data!\n"); + return -EOPNOTSUPP; + } + + return 0; +} + +static void rockchip_ddr_perf_update_counters(struct rockchip_dfi *dfi) +{ + struct dmc_count count; + struct dmc_count *last = &dfi->last; + int blen = dfi->burst_len; + u32 diff; + int i; + + rockchip_dfi_read_counters(dfi, &count); + + diff = count.c[0].total - last->c[0].total; + dfi->frr.count[PERF_EVENT_CYCLES] += diff; + + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; + + diff = count.c[i].read_access - last->c[i].read_access; + dfi->frr.count[PERF_EVENT_READ_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].write_access - last->c[i].write_access; + dfi->frr.count[PERF_EVENT_WRITE_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].access - last->c[i].access; + dfi->frr.count[PERF_EVENT_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + } + + dfi->last = count; +} + +static void rockchip_ddr_perf_event_update(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + s64 prev; + u64 now; + + rockchip_ddr_perf_update_counters(dfi); + + now = dfi->frr.count[event->attr.config]; + prev = local64_xchg(&event->hw.prev_count, now); + local64_add(now - prev, &event->count); +} + +static void rockchip_ddr_perf_event_start(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_update_counters(dfi); + + local64_set(&event->hw.prev_count, dfi->frr.count[event->attr.config]); +} + +static int rockchip_ddr_perf_event_add(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + struct hw_perf_event *hwc = &event->hw; + + hwc->state |= PERF_HES_STOPPED; + + dfi->active_events++; + + if (dfi->active_events == 1) { + rockchip_dfi_enable(dfi); + hrtimer_start(&dfi->timer, 0, HRTIMER_MODE_REL); + } + + if (flags & PERF_EF_START) + rockchip_ddr_perf_event_start(event, flags); + + return 0; +} + +static void rockchip_ddr_perf_event_stop(struct perf_event *event, int flags) +{ + rockchip_ddr_perf_event_update(event); +} + +static void rockchip_ddr_perf_event_del(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_event_stop(event, PERF_EF_UPDATE); + + dfi->active_events--; + + if (dfi->active_events == 0) { + hrtimer_cancel(&dfi->timer); + rockchip_dfi_disable(dfi); + } +} + +static enum hrtimer_restart rockchip_dfi_timer(struct hrtimer *timer) +{ + struct rockchip_dfi *dfi = container_of(timer, struct rockchip_dfi, timer); + ktime_t timeout; + + rockchip_ddr_perf_update_counters(dfi); + + timeout = ns_to_ktime(NSEC_PER_SEC); + hrtimer_forward_now(&dfi->timer, timeout); + + return HRTIMER_RESTART; +}; + +static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct rockchip_dfi *dfi = hlist_entry_safe(node, struct rockchip_dfi, node); + int target; + + if (cpu != dfi->cpu) + return 0; + + target = cpumask_any_but(cpu_online_mask, cpu); + if (target >= nr_cpu_ids) + return 0; + + perf_pmu_migrate_context(&dfi->pmu, cpu, target); + dfi->cpu = target; + + return 0; +} + +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + struct pmu *pmu = &dfi->pmu; + int ret; + + pmu->module = THIS_MODULE; + pmu->capabilities = PERF_PMU_CAP_NO_EXCLUDE; + pmu->task_ctx_nr = perf_invalid_context; + pmu->attr_groups = attr_groups; + pmu->event_init = rockchip_ddr_perf_event_init; + pmu->add = rockchip_ddr_perf_event_add; + pmu->del = rockchip_ddr_perf_event_del; + pmu->start = rockchip_ddr_perf_event_start; + pmu->stop = rockchip_ddr_perf_event_stop; + pmu->read = rockchip_ddr_perf_event_update; + + dfi->cpu = raw_smp_processor_id(); + + ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, + "rockchip_ddr_perf_pmu", + NULL, + ddr_perf_offline_cpu); + + if (ret < 0) { + dev_err(dfi->dev, "cpuhp_setup_state_multi failed: %d\n", ret); + return ret; + } + + dfi->cpuhp_state = ret; + + /* Register the pmu instance for cpu hotplug */ + ret = cpuhp_state_add_instance_nocalls(dfi->cpuhp_state, &dfi->node); + if (ret) { + dev_err(dfi->dev, "Error %d registering hotplug\n", ret); + goto cpuhp_instance_err; + } + + hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + dfi->timer.function = rockchip_dfi_timer; + + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: + dfi->burst_len = 8; + break; + case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: + dfi->burst_len = 16; + break; + } + + ret = perf_pmu_register(pmu, "rockchip_ddr", -1); + if (ret) + goto ddr_perf_err; + + return 0; + +ddr_perf_err: + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); +cpuhp_instance_err: + cpuhp_remove_multi_state(dfi->cpuhp_state); + + return ret; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); + cpuhp_remove_multi_state(dfi->cpuhp_state); + + perf_pmu_unregister(&dfi->pmu); +} + +#else +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + return 0; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ +} +#endif + static int rk3399_dfi_init(struct rockchip_dfi *dfi) { struct regmap *regmap_pmu = dfi->regmap_pmu; @@ -234,6 +564,9 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->channel_mask = 3; + dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2; + dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; + return 0; }; @@ -250,6 +583,8 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi) if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + dfi->buswidth[0] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2; + dfi->channel_mask = 1; return 0; @@ -325,13 +660,27 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->edev); } + ret = rockchip_ddr_perf_init(dfi); + if (ret) + return ret; + platform_set_drvdata(pdev, dfi); return 0; } +static int rockchip_dfi_remove(struct platform_device *pdev) +{ + struct rockchip_dfi *dfi = platform_get_drvdata(pdev); + + rockchip_ddr_perf_remove(dfi); + + return 0; +} + static struct platform_driver rockchip_dfi_driver = { .probe = rockchip_dfi_probe, + .remove = rockchip_dfi_remove, .driver = { .name = "rockchip-dfi", .of_match_table = rockchip_dfi_id_match, diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 775f8444bea8d..39cd44cec982f 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -12,5 +12,7 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 #define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) +#define RK3399_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) +#define RK3399_PMUGRF_OS_REG2_BW_CH1 GENMASK(19, 18) #endif diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h index 575584e9d8834..52853efd6720e 100644 --- a/include/soc/rockchip/rk3568_grf.h +++ b/include/soc/rockchip/rk3568_grf.h @@ -4,6 +4,7 @@ #define RK3568_PMUGRF_OS_REG2 0x208 #define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) +#define RK3568_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) #define RK3568_PMUGRF_OS_REG3 0x20c #define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) -- 2.30.2
The DFI is a unit which is suitable for measuring DDR utilization, but so far it could only be used as an event driver for the DDR frequency scaling driver. This adds perf support to the DFI driver. Usage with the 'perf' tool can look like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed perf support has been tested on a RK3568 and a RK3399, the latter with dual channel DDR. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 349 +++++++++++++++++++++++++++ include/soc/rockchip/rk3399_grf.h | 2 + include/soc/rockchip/rk3568_grf.h | 1 + 3 files changed, 352 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index eae010644935a..400b1b360e3c9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -20,6 +20,7 @@ #include <linux/of_device.h> #include <linux/bitfield.h> #include <linux/bits.h> +#include <linux/perf_event.h> #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> @@ -41,14 +42,30 @@ DDRMON_CTRL_LPDDR4 | \ DDRMON_CTRL_LPDDR23) +#define DDRMON_CH0_WR_NUM 0x20 +#define DDRMON_CH0_RD_NUM 0x24 #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 +enum access_type { + PERF_EVENT_CYCLES, + PERF_EVENT_READ_BYTES, + PERF_EVENT_WRITE_BYTES, + PERF_EVENT_BYTES, + PERF_ACCESS_TYPE_MAX, +}; + struct dmc_count_channel { u32 access; u32 total; + u32 read_access; + u32 write_access; +}; + +struct dmc_count_channel64 { + u64 count[PERF_ACCESS_TYPE_MAX]; }; struct dmc_count { @@ -65,6 +82,7 @@ struct rockchip_dfi { struct devfreq_event_desc desc; struct dmc_count count; struct dmc_count last_event_count; + struct dmc_count last; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -73,6 +91,15 @@ struct rockchip_dfi { struct mutex mutex; u32 ddr_type; unsigned int channel_mask; + enum cpuhp_state cpuhp_state; + struct hlist_node node; + struct pmu pmu; + struct hrtimer timer; + unsigned int cpu; + struct dmc_count_channel64 frr; + int active_events; + int burst_len; + int buswidth[DMC_MAX_CHANNELS]; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) @@ -148,6 +175,10 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun for (i = 0; i < DMC_MAX_CHANNELS; i++) { if (!(dfi->channel_mask & BIT(i))) continue; + count->c[i].read_access = readl_relaxed(dfi_regs + + DDRMON_CH0_RD_NUM + i * 20); + count->c[i].write_access = readl_relaxed(dfi_regs + + DDRMON_CH0_WR_NUM + i * 20); count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -218,6 +249,305 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +#ifdef CONFIG_PERF_EVENTS + +static ssize_t ddr_perf_cpumask_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct pmu *pmu = dev_get_drvdata(dev); + struct rockchip_dfi *dfi = container_of(pmu, struct rockchip_dfi, pmu); + + return cpumap_print_to_pagebuf(true, buf, cpumask_of(dfi->cpu)); +} + +static struct device_attribute ddr_perf_cpumask_attr = + __ATTR(cpumask, 0444, ddr_perf_cpumask_show, NULL); + +static struct attribute *ddr_perf_cpumask_attrs[] = { + &ddr_perf_cpumask_attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_cpumask_attr_group = { + .attrs = ddr_perf_cpumask_attrs, +}; + +PMU_EVENT_ATTR_STRING(cycles, ddr_pmu_cycles, "event=0x00") + +PMU_EVENT_ATTR_STRING(read-bytes, ddr_pmu_read_bytes, "event=0x01") +PMU_EVENT_ATTR_STRING(read-bytes.unit, ddr_pmu_read_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(read-bytes.scale, ddr_pmu_read_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(write-bytes, ddr_pmu_write_bytes, "event=0x02") +PMU_EVENT_ATTR_STRING(write-bytes.unit, ddr_pmu_write_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(write-bytes.scale, ddr_pmu_write_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(bytes, ddr_pmu_bytes, "event=0x03") +PMU_EVENT_ATTR_STRING(bytes.unit, ddr_pmu_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(bytes.scale, ddr_pmu_bytes_scale, "9.536743164e-07"); + +static struct attribute *ddr_perf_events_attrs[] = { + &ddr_pmu_cycles.attr.attr, + &ddr_pmu_read_bytes.attr.attr, + &ddr_pmu_read_bytes_unit.attr.attr, + &ddr_pmu_read_bytes_scale.attr.attr, + &ddr_pmu_write_bytes.attr.attr, + &ddr_pmu_write_bytes_unit.attr.attr, + &ddr_pmu_write_bytes_scale.attr.attr, + &ddr_pmu_bytes.attr.attr, + &ddr_pmu_bytes_unit.attr.attr, + &ddr_pmu_bytes_scale.attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_events_attr_group = { + .name = "events", + .attrs = ddr_perf_events_attrs, +}; + +PMU_FORMAT_ATTR(event, "config:0-7"); + +static struct attribute *ddr_perf_format_attrs[] = { + &format_attr_event.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_format_attr_group = { + .name = "format", + .attrs = ddr_perf_format_attrs, +}; + +static const struct attribute_group *attr_groups[] = { + &ddr_perf_events_attr_group, + &ddr_perf_cpumask_attr_group, + &ddr_perf_format_attr_group, + NULL, +}; + +static int rockchip_ddr_perf_event_init(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + if (event->attach_state & PERF_ATTACH_TASK) + return -EOPNOTSUPP; + + if (event->cpu < 0) { + dev_warn(dfi->dev, "Can't provide per-task data!\n"); + return -EOPNOTSUPP; + } + + return 0; +} + +static void rockchip_ddr_perf_update_counters(struct rockchip_dfi *dfi) +{ + struct dmc_count count; + struct dmc_count *last = &dfi->last; + int blen = dfi->burst_len; + u32 diff; + int i; + + rockchip_dfi_read_counters(dfi, &count); + + diff = count.c[0].total - last->c[0].total; + dfi->frr.count[PERF_EVENT_CYCLES] += diff; + + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; + + diff = count.c[i].read_access - last->c[i].read_access; + dfi->frr.count[PERF_EVENT_READ_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].write_access - last->c[i].write_access; + dfi->frr.count[PERF_EVENT_WRITE_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].access - last->c[i].access; + dfi->frr.count[PERF_EVENT_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + } + + dfi->last = count; +} + +static void rockchip_ddr_perf_event_update(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + s64 prev; + u64 now; + + rockchip_ddr_perf_update_counters(dfi); + + now = dfi->frr.count[event->attr.config]; + prev = local64_xchg(&event->hw.prev_count, now); + local64_add(now - prev, &event->count); +} + +static void rockchip_ddr_perf_event_start(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_update_counters(dfi); + + local64_set(&event->hw.prev_count, dfi->frr.count[event->attr.config]); +} + +static int rockchip_ddr_perf_event_add(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + struct hw_perf_event *hwc = &event->hw; + + hwc->state |= PERF_HES_STOPPED; + + dfi->active_events++; + + if (dfi->active_events == 1) { + rockchip_dfi_enable(dfi); + hrtimer_start(&dfi->timer, 0, HRTIMER_MODE_REL); + } + + if (flags & PERF_EF_START) + rockchip_ddr_perf_event_start(event, flags); + + return 0; +} + +static void rockchip_ddr_perf_event_stop(struct perf_event *event, int flags) +{ + rockchip_ddr_perf_event_update(event); +} + +static void rockchip_ddr_perf_event_del(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_event_stop(event, PERF_EF_UPDATE); + + dfi->active_events--; + + if (dfi->active_events == 0) { + hrtimer_cancel(&dfi->timer); + rockchip_dfi_disable(dfi); + } +} + +static enum hrtimer_restart rockchip_dfi_timer(struct hrtimer *timer) +{ + struct rockchip_dfi *dfi = container_of(timer, struct rockchip_dfi, timer); + ktime_t timeout; + + rockchip_ddr_perf_update_counters(dfi); + + timeout = ns_to_ktime(NSEC_PER_SEC); + hrtimer_forward_now(&dfi->timer, timeout); + + return HRTIMER_RESTART; +}; + +static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct rockchip_dfi *dfi = hlist_entry_safe(node, struct rockchip_dfi, node); + int target; + + if (cpu != dfi->cpu) + return 0; + + target = cpumask_any_but(cpu_online_mask, cpu); + if (target >= nr_cpu_ids) + return 0; + + perf_pmu_migrate_context(&dfi->pmu, cpu, target); + dfi->cpu = target; + + return 0; +} + +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + struct pmu *pmu = &dfi->pmu; + int ret; + + pmu->module = THIS_MODULE; + pmu->capabilities = PERF_PMU_CAP_NO_EXCLUDE; + pmu->task_ctx_nr = perf_invalid_context; + pmu->attr_groups = attr_groups; + pmu->event_init = rockchip_ddr_perf_event_init; + pmu->add = rockchip_ddr_perf_event_add; + pmu->del = rockchip_ddr_perf_event_del; + pmu->start = rockchip_ddr_perf_event_start; + pmu->stop = rockchip_ddr_perf_event_stop; + pmu->read = rockchip_ddr_perf_event_update; + + dfi->cpu = raw_smp_processor_id(); + + ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, + "rockchip_ddr_perf_pmu", + NULL, + ddr_perf_offline_cpu); + + if (ret < 0) { + dev_err(dfi->dev, "cpuhp_setup_state_multi failed: %d\n", ret); + return ret; + } + + dfi->cpuhp_state = ret; + + /* Register the pmu instance for cpu hotplug */ + ret = cpuhp_state_add_instance_nocalls(dfi->cpuhp_state, &dfi->node); + if (ret) { + dev_err(dfi->dev, "Error %d registering hotplug\n", ret); + goto cpuhp_instance_err; + } + + hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + dfi->timer.function = rockchip_dfi_timer; + + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: + dfi->burst_len = 8; + break; + case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: + dfi->burst_len = 16; + break; + } + + ret = perf_pmu_register(pmu, "rockchip_ddr", -1); + if (ret) + goto ddr_perf_err; + + return 0; + +ddr_perf_err: + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); +cpuhp_instance_err: + cpuhp_remove_multi_state(dfi->cpuhp_state); + + return ret; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); + cpuhp_remove_multi_state(dfi->cpuhp_state); + + perf_pmu_unregister(&dfi->pmu); +} + +#else +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + return 0; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ +} +#endif + static int rk3399_dfi_init(struct rockchip_dfi *dfi) { struct regmap *regmap_pmu = dfi->regmap_pmu; @@ -234,6 +564,9 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->channel_mask = 3; + dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2; + dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; + return 0; }; @@ -250,6 +583,8 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi) if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + dfi->buswidth[0] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2; + dfi->channel_mask = 1; return 0; @@ -325,13 +660,27 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->edev); } + ret = rockchip_ddr_perf_init(dfi); + if (ret) + return ret; + platform_set_drvdata(pdev, dfi); return 0; } +static int rockchip_dfi_remove(struct platform_device *pdev) +{ + struct rockchip_dfi *dfi = platform_get_drvdata(pdev); + + rockchip_ddr_perf_remove(dfi); + + return 0; +} + static struct platform_driver rockchip_dfi_driver = { .probe = rockchip_dfi_probe, + .remove = rockchip_dfi_remove, .driver = { .name = "rockchip-dfi", .of_match_table = rockchip_dfi_id_match, diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 775f8444bea8d..39cd44cec982f 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -12,5 +12,7 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 #define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) +#define RK3399_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) +#define RK3399_PMUGRF_OS_REG2_BW_CH1 GENMASK(19, 18) #endif diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h index 575584e9d8834..52853efd6720e 100644 --- a/include/soc/rockchip/rk3568_grf.h +++ b/include/soc/rockchip/rk3568_grf.h @@ -4,6 +4,7 @@ #define RK3568_PMUGRF_OS_REG2 0x208 #define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) +#define RK3568_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) #define RK3568_PMUGRF_OS_REG3 0x20c #define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
The DFI is a unit which is suitable for measuring DDR utilization, but so far it could only be used as an event driver for the DDR frequency scaling driver. This adds perf support to the DFI driver. Usage with the 'perf' tool can look like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed perf support has been tested on a RK3568 and a RK3399, the latter with dual channel DDR. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/devfreq/event/rockchip-dfi.c | 349 +++++++++++++++++++++++++++ include/soc/rockchip/rk3399_grf.h | 2 + include/soc/rockchip/rk3568_grf.h | 1 + 3 files changed, 352 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index eae010644935a..400b1b360e3c9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -20,6 +20,7 @@ #include <linux/of_device.h> #include <linux/bitfield.h> #include <linux/bits.h> +#include <linux/perf_event.h> #include <soc/rockchip/rockchip_grf.h> #include <soc/rockchip/rk3399_grf.h> @@ -41,14 +42,30 @@ DDRMON_CTRL_LPDDR4 | \ DDRMON_CTRL_LPDDR23) +#define DDRMON_CH0_WR_NUM 0x20 +#define DDRMON_CH0_RD_NUM 0x24 #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 +enum access_type { + PERF_EVENT_CYCLES, + PERF_EVENT_READ_BYTES, + PERF_EVENT_WRITE_BYTES, + PERF_EVENT_BYTES, + PERF_ACCESS_TYPE_MAX, +}; + struct dmc_count_channel { u32 access; u32 total; + u32 read_access; + u32 write_access; +}; + +struct dmc_count_channel64 { + u64 count[PERF_ACCESS_TYPE_MAX]; }; struct dmc_count { @@ -65,6 +82,7 @@ struct rockchip_dfi { struct devfreq_event_desc desc; struct dmc_count count; struct dmc_count last_event_count; + struct dmc_count last; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -73,6 +91,15 @@ struct rockchip_dfi { struct mutex mutex; u32 ddr_type; unsigned int channel_mask; + enum cpuhp_state cpuhp_state; + struct hlist_node node; + struct pmu pmu; + struct hrtimer timer; + unsigned int cpu; + struct dmc_count_channel64 frr; + int active_events; + int burst_len; + int buswidth[DMC_MAX_CHANNELS]; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) @@ -148,6 +175,10 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun for (i = 0; i < DMC_MAX_CHANNELS; i++) { if (!(dfi->channel_mask & BIT(i))) continue; + count->c[i].read_access = readl_relaxed(dfi_regs + + DDRMON_CH0_RD_NUM + i * 20); + count->c[i].write_access = readl_relaxed(dfi_regs + + DDRMON_CH0_WR_NUM + i * 20); count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -218,6 +249,305 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +#ifdef CONFIG_PERF_EVENTS + +static ssize_t ddr_perf_cpumask_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct pmu *pmu = dev_get_drvdata(dev); + struct rockchip_dfi *dfi = container_of(pmu, struct rockchip_dfi, pmu); + + return cpumap_print_to_pagebuf(true, buf, cpumask_of(dfi->cpu)); +} + +static struct device_attribute ddr_perf_cpumask_attr = + __ATTR(cpumask, 0444, ddr_perf_cpumask_show, NULL); + +static struct attribute *ddr_perf_cpumask_attrs[] = { + &ddr_perf_cpumask_attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_cpumask_attr_group = { + .attrs = ddr_perf_cpumask_attrs, +}; + +PMU_EVENT_ATTR_STRING(cycles, ddr_pmu_cycles, "event=0x00") + +PMU_EVENT_ATTR_STRING(read-bytes, ddr_pmu_read_bytes, "event=0x01") +PMU_EVENT_ATTR_STRING(read-bytes.unit, ddr_pmu_read_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(read-bytes.scale, ddr_pmu_read_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(write-bytes, ddr_pmu_write_bytes, "event=0x02") +PMU_EVENT_ATTR_STRING(write-bytes.unit, ddr_pmu_write_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(write-bytes.scale, ddr_pmu_write_bytes_scale, "9.536743164e-07"); + +PMU_EVENT_ATTR_STRING(bytes, ddr_pmu_bytes, "event=0x03") +PMU_EVENT_ATTR_STRING(bytes.unit, ddr_pmu_bytes_unit, "MB"); +PMU_EVENT_ATTR_STRING(bytes.scale, ddr_pmu_bytes_scale, "9.536743164e-07"); + +static struct attribute *ddr_perf_events_attrs[] = { + &ddr_pmu_cycles.attr.attr, + &ddr_pmu_read_bytes.attr.attr, + &ddr_pmu_read_bytes_unit.attr.attr, + &ddr_pmu_read_bytes_scale.attr.attr, + &ddr_pmu_write_bytes.attr.attr, + &ddr_pmu_write_bytes_unit.attr.attr, + &ddr_pmu_write_bytes_scale.attr.attr, + &ddr_pmu_bytes.attr.attr, + &ddr_pmu_bytes_unit.attr.attr, + &ddr_pmu_bytes_scale.attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_events_attr_group = { + .name = "events", + .attrs = ddr_perf_events_attrs, +}; + +PMU_FORMAT_ATTR(event, "config:0-7"); + +static struct attribute *ddr_perf_format_attrs[] = { + &format_attr_event.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_format_attr_group = { + .name = "format", + .attrs = ddr_perf_format_attrs, +}; + +static const struct attribute_group *attr_groups[] = { + &ddr_perf_events_attr_group, + &ddr_perf_cpumask_attr_group, + &ddr_perf_format_attr_group, + NULL, +}; + +static int rockchip_ddr_perf_event_init(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + if (event->attach_state & PERF_ATTACH_TASK) + return -EOPNOTSUPP; + + if (event->cpu < 0) { + dev_warn(dfi->dev, "Can't provide per-task data!\n"); + return -EOPNOTSUPP; + } + + return 0; +} + +static void rockchip_ddr_perf_update_counters(struct rockchip_dfi *dfi) +{ + struct dmc_count count; + struct dmc_count *last = &dfi->last; + int blen = dfi->burst_len; + u32 diff; + int i; + + rockchip_dfi_read_counters(dfi, &count); + + diff = count.c[0].total - last->c[0].total; + dfi->frr.count[PERF_EVENT_CYCLES] += diff; + + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; + + diff = count.c[i].read_access - last->c[i].read_access; + dfi->frr.count[PERF_EVENT_READ_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].write_access - last->c[i].write_access; + dfi->frr.count[PERF_EVENT_WRITE_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + + diff = count.c[i].access - last->c[i].access; + dfi->frr.count[PERF_EVENT_BYTES] += (u64)diff * blen * dfi->buswidth[i]; + } + + dfi->last = count; +} + +static void rockchip_ddr_perf_event_update(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + s64 prev; + u64 now; + + rockchip_ddr_perf_update_counters(dfi); + + now = dfi->frr.count[event->attr.config]; + prev = local64_xchg(&event->hw.prev_count, now); + local64_add(now - prev, &event->count); +} + +static void rockchip_ddr_perf_event_start(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_update_counters(dfi); + + local64_set(&event->hw.prev_count, dfi->frr.count[event->attr.config]); +} + +static int rockchip_ddr_perf_event_add(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + struct hw_perf_event *hwc = &event->hw; + + hwc->state |= PERF_HES_STOPPED; + + dfi->active_events++; + + if (dfi->active_events == 1) { + rockchip_dfi_enable(dfi); + hrtimer_start(&dfi->timer, 0, HRTIMER_MODE_REL); + } + + if (flags & PERF_EF_START) + rockchip_ddr_perf_event_start(event, flags); + + return 0; +} + +static void rockchip_ddr_perf_event_stop(struct perf_event *event, int flags) +{ + rockchip_ddr_perf_event_update(event); +} + +static void rockchip_ddr_perf_event_del(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_event_stop(event, PERF_EF_UPDATE); + + dfi->active_events--; + + if (dfi->active_events == 0) { + hrtimer_cancel(&dfi->timer); + rockchip_dfi_disable(dfi); + } +} + +static enum hrtimer_restart rockchip_dfi_timer(struct hrtimer *timer) +{ + struct rockchip_dfi *dfi = container_of(timer, struct rockchip_dfi, timer); + ktime_t timeout; + + rockchip_ddr_perf_update_counters(dfi); + + timeout = ns_to_ktime(NSEC_PER_SEC); + hrtimer_forward_now(&dfi->timer, timeout); + + return HRTIMER_RESTART; +}; + +static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct rockchip_dfi *dfi = hlist_entry_safe(node, struct rockchip_dfi, node); + int target; + + if (cpu != dfi->cpu) + return 0; + + target = cpumask_any_but(cpu_online_mask, cpu); + if (target >= nr_cpu_ids) + return 0; + + perf_pmu_migrate_context(&dfi->pmu, cpu, target); + dfi->cpu = target; + + return 0; +} + +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + struct pmu *pmu = &dfi->pmu; + int ret; + + pmu->module = THIS_MODULE; + pmu->capabilities = PERF_PMU_CAP_NO_EXCLUDE; + pmu->task_ctx_nr = perf_invalid_context; + pmu->attr_groups = attr_groups; + pmu->event_init = rockchip_ddr_perf_event_init; + pmu->add = rockchip_ddr_perf_event_add; + pmu->del = rockchip_ddr_perf_event_del; + pmu->start = rockchip_ddr_perf_event_start; + pmu->stop = rockchip_ddr_perf_event_stop; + pmu->read = rockchip_ddr_perf_event_update; + + dfi->cpu = raw_smp_processor_id(); + + ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, + "rockchip_ddr_perf_pmu", + NULL, + ddr_perf_offline_cpu); + + if (ret < 0) { + dev_err(dfi->dev, "cpuhp_setup_state_multi failed: %d\n", ret); + return ret; + } + + dfi->cpuhp_state = ret; + + /* Register the pmu instance for cpu hotplug */ + ret = cpuhp_state_add_instance_nocalls(dfi->cpuhp_state, &dfi->node); + if (ret) { + dev_err(dfi->dev, "Error %d registering hotplug\n", ret); + goto cpuhp_instance_err; + } + + hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + dfi->timer.function = rockchip_dfi_timer; + + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: + dfi->burst_len = 8; + break; + case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: + dfi->burst_len = 16; + break; + } + + ret = perf_pmu_register(pmu, "rockchip_ddr", -1); + if (ret) + goto ddr_perf_err; + + return 0; + +ddr_perf_err: + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); +cpuhp_instance_err: + cpuhp_remove_multi_state(dfi->cpuhp_state); + + return ret; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); + cpuhp_remove_multi_state(dfi->cpuhp_state); + + perf_pmu_unregister(&dfi->pmu); +} + +#else +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + return 0; +} + +static void rockchip_ddr_perf_remove(struct rockchip_dfi *dfi) +{ +} +#endif + static int rk3399_dfi_init(struct rockchip_dfi *dfi) { struct regmap *regmap_pmu = dfi->regmap_pmu; @@ -234,6 +564,9 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->channel_mask = 3; + dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2; + dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; + return 0; }; @@ -250,6 +583,8 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi) if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + dfi->buswidth[0] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2; + dfi->channel_mask = 1; return 0; @@ -325,13 +660,27 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->edev); } + ret = rockchip_ddr_perf_init(dfi); + if (ret) + return ret; + platform_set_drvdata(pdev, dfi); return 0; } +static int rockchip_dfi_remove(struct platform_device *pdev) +{ + struct rockchip_dfi *dfi = platform_get_drvdata(pdev); + + rockchip_ddr_perf_remove(dfi); + + return 0; +} + static struct platform_driver rockchip_dfi_driver = { .probe = rockchip_dfi_probe, + .remove = rockchip_dfi_remove, .driver = { .name = "rockchip-dfi", .of_match_table = rockchip_dfi_id_match, diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 775f8444bea8d..39cd44cec982f 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -12,5 +12,7 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 #define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) +#define RK3399_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) +#define RK3399_PMUGRF_OS_REG2_BW_CH1 GENMASK(19, 18) #endif diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h index 575584e9d8834..52853efd6720e 100644 --- a/include/soc/rockchip/rk3568_grf.h +++ b/include/soc/rockchip/rk3568_grf.h @@ -4,6 +4,7 @@ #define RK3568_PMUGRF_OS_REG2 0x208 #define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) +#define RK3568_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) #define RK3568_PMUGRF_OS_REG3 0x20c #define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
the DFI unit can provide useful data for measuring DDR utilization and works without any configuration from the board, so enable it in the dtsi file directly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 4391aea25984b..077bb19664c06 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -1331,7 +1331,6 @@ dfi: dfi@ff630000 { interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&cru PCLK_DDR_MON>; clock-names = "pclk_ddr_mon"; - status = "disabled"; }; vpu: video-codec@ff650000 { -- 2.30.2
the DFI unit can provide useful data for measuring DDR utilization and works without any configuration from the board, so enable it in the dtsi file directly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 4391aea25984b..077bb19664c06 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -1331,7 +1331,6 @@ dfi: dfi@ff630000 { interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&cru PCLK_DDR_MON>; clock-names = "pclk_ddr_mon"; - status = "disabled"; }; vpu: video-codec@ff650000 { -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
the DFI unit can provide useful data for measuring DDR utilization and works without any configuration from the board, so enable it in the dtsi file directly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 4391aea25984b..077bb19664c06 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -1331,7 +1331,6 @@ dfi: dfi@ff630000 { interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&cru PCLK_DDR_MON>; clock-names = "pclk_ddr_mon"; - status = "disabled"; }; vpu: video-codec@ff650000 { -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The DFI unit can be used to measure DRAM utilization using perf. Add the node to the device tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index 5706c3e24f0a0..8d818b98a5e65 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -947,6 +947,12 @@ qos_vop_m1: qos@fe1a8100 { reg = <0x0 0xfe1a8100 0x0 0x20>; }; + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; + pcie2x1: pcie@fe260000 { compatible = "rockchip,rk3568-pcie"; reg = <0x3 0xc0000000 0x0 0x00400000>, -- 2.30.2
The DFI unit can be used to measure DRAM utilization using perf. Add the node to the device tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index 5706c3e24f0a0..8d818b98a5e65 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -947,6 +947,12 @@ qos_vop_m1: qos@fe1a8100 { reg = <0x0 0xfe1a8100 0x0 0x20>; }; + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; + pcie2x1: pcie@fe260000 { compatible = "rockchip,rk3568-pcie"; reg = <0x3 0xc0000000 0x0 0x00400000>, -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
The DFI unit can be used to measure DRAM utilization using perf. Add the node to the device tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- arch/arm64/boot/dts/rockchip/rk356x.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index 5706c3e24f0a0..8d818b98a5e65 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -947,6 +947,12 @@ qos_vop_m1: qos@fe1a8100 { reg = <0x0 0xfe1a8100 0x0 0x20>; }; + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; + pcie2x1: pcie@fe260000 { compatible = "rockchip,rk3568-pcie"; reg = <0x3 0xc0000000 0x0 0x00400000>, -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
Convert the Rockchip DFI binding to yaml. While at it add the newly supported rk3568-dfi to the binding. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ 2 files changed, 38 insertions(+), 18 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt deleted file mode 100644 index 148191b0fc158..0000000000000 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt +++ /dev/null @@ -1,18 +0,0 @@ - -* Rockchip rk3399 DFI device - -Required properties: -- compatible: Must be "rockchip,rk3399-dfi". -- reg: physical base address of each DFI and length of memory mapped region -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" -- clocks: phandles for clock specified in "clock-names" property -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; - -Example: - dfi: dfi@ff630000 { - compatible = "rockchip,rk3399-dfi"; - reg = <0x00 0xff630000 0x00 0x4000>; - rockchip,pmu = <&pmugrf>; - clocks = <&cru PCLK_DDR_MON>; - clock-names = "pclk_ddr_mon"; - }; diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml new file mode 100644 index 0000000000000..e082a0df7895a --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip DFI + +maintainers: + - Sascha Hauer <s.hauer@pengutronix.de> + +properties: + compatible: + enum: + - rk3399-dfi + - rk3568-dfi + + clocks: + maxItems: 1 + + rockchip,pmu: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "PMU general register files". + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; -- 2.30.2
Convert the Rockchip DFI binding to yaml. While at it add the newly supported rk3568-dfi to the binding. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ 2 files changed, 38 insertions(+), 18 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt deleted file mode 100644 index 148191b0fc158..0000000000000 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt +++ /dev/null @@ -1,18 +0,0 @@ - -* Rockchip rk3399 DFI device - -Required properties: -- compatible: Must be "rockchip,rk3399-dfi". -- reg: physical base address of each DFI and length of memory mapped region -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" -- clocks: phandles for clock specified in "clock-names" property -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; - -Example: - dfi: dfi@ff630000 { - compatible = "rockchip,rk3399-dfi"; - reg = <0x00 0xff630000 0x00 0x4000>; - rockchip,pmu = <&pmugrf>; - clocks = <&cru PCLK_DDR_MON>; - clock-names = "pclk_ddr_mon"; - }; diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml new file mode 100644 index 0000000000000..e082a0df7895a --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip DFI + +maintainers: + - Sascha Hauer <s.hauer@pengutronix.de> + +properties: + compatible: + enum: + - rk3399-dfi + - rk3568-dfi + + clocks: + maxItems: 1 + + rockchip,pmu: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "PMU general register files". + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
Convert the Rockchip DFI binding to yaml. While at it add the newly supported rk3568-dfi to the binding. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ 2 files changed, 38 insertions(+), 18 deletions(-) delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt deleted file mode 100644 index 148191b0fc158..0000000000000 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt +++ /dev/null @@ -1,18 +0,0 @@ - -* Rockchip rk3399 DFI device - -Required properties: -- compatible: Must be "rockchip,rk3399-dfi". -- reg: physical base address of each DFI and length of memory mapped region -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" -- clocks: phandles for clock specified in "clock-names" property -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; - -Example: - dfi: dfi@ff630000 { - compatible = "rockchip,rk3399-dfi"; - reg = <0x00 0xff630000 0x00 0x4000>; - rockchip,pmu = <&pmugrf>; - clocks = <&cru PCLK_DDR_MON>; - clock-names = "pclk_ddr_mon"; - }; diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml new file mode 100644 index 0000000000000..e082a0df7895a --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip DFI + +maintainers: + - Sascha Hauer <s.hauer@pengutronix.de> + +properties: + compatible: + enum: + - rk3399-dfi + - rk3568-dfi + + clocks: + maxItems: 1 + + rockchip,pmu: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "PMU general register files". + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + rockchip,pmu = <&pmugrf>; + }; -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On 03/02/2023 13:50, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Please use scripts/get_maintainers.pl to get a list of necessary people and lists to CC. It might happen, that command when run on an older kernel, gives you outdated entries. Therefore please be sure you base your patches on recent Linux kernel. > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > deleted file mode 100644 > index 148191b0fc158..0000000000000 > --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > +++ /dev/null > @@ -1,18 +0,0 @@ > - > -* Rockchip rk3399 DFI device > - > -Required properties: > -- compatible: Must be "rockchip,rk3399-dfi". > -- reg: physical base address of each DFI and length of memory mapped region > -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" > -- clocks: phandles for clock specified in "clock-names" property > -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; > - > -Example: > - dfi: dfi@ff630000 { > - compatible = "rockchip,rk3399-dfi"; > - reg = <0x00 0xff630000 0x00 0x4000>; > - rockchip,pmu = <&pmugrf>; > - clocks = <&cru PCLK_DDR_MON>; > - clock-names = "pclk_ddr_mon"; > - }; > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > new file mode 100644 > index 0000000000000..e082a0df7895a > --- /dev/null > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml rockchip,dfi.yaml > @@ -0,0 +1,38 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Rockchip DFI > + > +maintainers: > + - Sascha Hauer <s.hauer@pengutronix.de> > + > +properties: > + compatible: > + enum: > + - rk3399-dfi > + - rk3568-dfi These are not correct compatibles. > + > + clocks: > + maxItems: 1 > + > + rockchip,pmu: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the "PMU general register files". > + > +required: > + - compatible > + - reg clocks were required > + > +additionalProperties: false Best regards, Krzysztof _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
On 03/02/2023 13:50, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Please use scripts/get_maintainers.pl to get a list of necessary people and lists to CC. It might happen, that command when run on an older kernel, gives you outdated entries. Therefore please be sure you base your patches on recent Linux kernel. > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > deleted file mode 100644 > index 148191b0fc158..0000000000000 > --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > +++ /dev/null > @@ -1,18 +0,0 @@ > - > -* Rockchip rk3399 DFI device > - > -Required properties: > -- compatible: Must be "rockchip,rk3399-dfi". > -- reg: physical base address of each DFI and length of memory mapped region > -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" > -- clocks: phandles for clock specified in "clock-names" property > -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; > - > -Example: > - dfi: dfi@ff630000 { > - compatible = "rockchip,rk3399-dfi"; > - reg = <0x00 0xff630000 0x00 0x4000>; > - rockchip,pmu = <&pmugrf>; > - clocks = <&cru PCLK_DDR_MON>; > - clock-names = "pclk_ddr_mon"; > - }; > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > new file mode 100644 > index 0000000000000..e082a0df7895a > --- /dev/null > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml rockchip,dfi.yaml > @@ -0,0 +1,38 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Rockchip DFI > + > +maintainers: > + - Sascha Hauer <s.hauer@pengutronix.de> > + > +properties: > + compatible: > + enum: > + - rk3399-dfi > + - rk3568-dfi These are not correct compatibles. > + > + clocks: > + maxItems: 1 > + > + rockchip,pmu: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the "PMU general register files". > + > +required: > + - compatible > + - reg clocks were required > + > +additionalProperties: false Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On 03/02/2023 13:50, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Please use scripts/get_maintainers.pl to get a list of necessary people and lists to CC. It might happen, that command when run on an older kernel, gives you outdated entries. Therefore please be sure you base your patches on recent Linux kernel. > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > deleted file mode 100644 > index 148191b0fc158..0000000000000 > --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > +++ /dev/null > @@ -1,18 +0,0 @@ > - > -* Rockchip rk3399 DFI device > - > -Required properties: > -- compatible: Must be "rockchip,rk3399-dfi". > -- reg: physical base address of each DFI and length of memory mapped region > -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" > -- clocks: phandles for clock specified in "clock-names" property > -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; > - > -Example: > - dfi: dfi@ff630000 { > - compatible = "rockchip,rk3399-dfi"; > - reg = <0x00 0xff630000 0x00 0x4000>; > - rockchip,pmu = <&pmugrf>; > - clocks = <&cru PCLK_DDR_MON>; > - clock-names = "pclk_ddr_mon"; > - }; > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > new file mode 100644 > index 0000000000000..e082a0df7895a > --- /dev/null > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml rockchip,dfi.yaml > @@ -0,0 +1,38 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Rockchip DFI > + > +maintainers: > + - Sascha Hauer <s.hauer@pengutronix.de> > + > +properties: > + compatible: > + enum: > + - rk3399-dfi > + - rk3568-dfi These are not correct compatibles. > + > + clocks: > + maxItems: 1 > + > + rockchip,pmu: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the "PMU general register files". > + > +required: > + - compatible > + - reg clocks were required > + > +additionalProperties: false Best regards, Krzysztof
On 03/02/2023 16:14, Krzysztof Kozlowski wrote: > On 03/02/2023 13:50, Sascha Hauer wrote: >> Convert the Rockchip DFI binding to yaml. While at it add the newly >> supported rk3568-dfi to the binding. >> >> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. BTW, for sure you already got this feedback because many patchsets from you and from other @pengutronix were sent not using get_maintainers.pl correctly. Best regards, Krzysztof _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
On 03/02/2023 16:14, Krzysztof Kozlowski wrote: > On 03/02/2023 13:50, Sascha Hauer wrote: >> Convert the Rockchip DFI binding to yaml. While at it add the newly >> supported rk3568-dfi to the binding. >> >> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. BTW, for sure you already got this feedback because many patchsets from you and from other @pengutronix were sent not using get_maintainers.pl correctly. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On 03/02/2023 16:14, Krzysztof Kozlowski wrote:
> On 03/02/2023 13:50, Sascha Hauer wrote:
>> Convert the Rockchip DFI binding to yaml. While at it add the newly
>> supported rk3568-dfi to the binding.
>>
>> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
>
> Please use scripts/get_maintainers.pl to get a list of necessary people
> and lists to CC. It might happen, that command when run on an older
> kernel, gives you outdated entries. Therefore please be sure you base
> your patches on recent Linux kernel.
BTW, for sure you already got this feedback because many patchsets from
you and from other @pengutronix were sent not using get_maintainers.pl
correctly.
Best regards,
Krzysztof
On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: > On 03/02/2023 13:50, Sascha Hauer wrote: > > Convert the Rockchip DFI binding to yaml. While at it add the newly > > supported rk3568-dfi to the binding. > > > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. That's what I did. I skipped you and Rob because I know you're wathcing the list anyway. > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > new file mode 100644 > > index 0000000000000..e082a0df7895a > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > rockchip,dfi.yaml ok. > > > @@ -0,0 +1,38 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Rockchip DFI > > + > > +maintainers: > > + - Sascha Hauer <s.hauer@pengutronix.de> > > + > > +properties: > > + compatible: > > + enum: > > + - rk3399-dfi > > + - rk3568-dfi > > These are not correct compatibles. What's wrong with them? > > > + > > + clocks: > > + maxItems: 1 > > + > > + rockchip,pmu: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Phandle to the syscon managing the "PMU general register files". > > + > > +required: > > + - compatible > > + - reg > > clocks were required They are no longer, the RK3568 doesn't have a clock. Do I have to add something to make the clock optional on RK3568 only? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: > On 03/02/2023 13:50, Sascha Hauer wrote: > > Convert the Rockchip DFI binding to yaml. While at it add the newly > > supported rk3568-dfi to the binding. > > > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. That's what I did. I skipped you and Rob because I know you're wathcing the list anyway. > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > new file mode 100644 > > index 0000000000000..e082a0df7895a > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > rockchip,dfi.yaml ok. > > > @@ -0,0 +1,38 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Rockchip DFI > > + > > +maintainers: > > + - Sascha Hauer <s.hauer@pengutronix.de> > > + > > +properties: > > + compatible: > > + enum: > > + - rk3399-dfi > > + - rk3568-dfi > > These are not correct compatibles. What's wrong with them? > > > + > > + clocks: > > + maxItems: 1 > > + > > + rockchip,pmu: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Phandle to the syscon managing the "PMU general register files". > > + > > +required: > > + - compatible > > + - reg > > clocks were required They are no longer, the RK3568 doesn't have a clock. Do I have to add something to make the clock optional on RK3568 only? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: > On 03/02/2023 13:50, Sascha Hauer wrote: > > Convert the Rockchip DFI binding to yaml. While at it add the newly > > supported rk3568-dfi to the binding. > > > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. That's what I did. I skipped you and Rob because I know you're wathcing the list anyway. > > diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > new file mode 100644 > > index 0000000000000..e082a0df7895a > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > > rockchip,dfi.yaml ok. > > > @@ -0,0 +1,38 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Rockchip DFI > > + > > +maintainers: > > + - Sascha Hauer <s.hauer@pengutronix.de> > > + > > +properties: > > + compatible: > > + enum: > > + - rk3399-dfi > > + - rk3568-dfi > > These are not correct compatibles. What's wrong with them? > > > + > > + clocks: > > + maxItems: 1 > > + > > + rockchip,pmu: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Phandle to the syscon managing the "PMU general register files". > > + > > +required: > > + - compatible > > + - reg > > clocks were required They are no longer, the RK3568 doesn't have a clock. Do I have to add something to make the clock optional on RK3568 only? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On 03/02/2023 17:02, Sascha Hauer wrote: > On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: >> On 03/02/2023 13:50, Sascha Hauer wrote: >>> Convert the Rockchip DFI binding to yaml. While at it add the newly >>> supported rk3568-dfi to the binding. >>> >>> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> >> >> Please use scripts/get_maintainers.pl to get a list of necessary people >> and lists to CC. It might happen, that command when run on an older >> kernel, gives you outdated entries. Therefore please be sure you base >> your patches on recent Linux kernel. > > That's what I did. I skipped you and Rob because I know you're wathcing > the list anyway. Rob is apparently ok with that but I prefer not to be skipped, because: 1. such emails end up in entirely different mailbox, 2. I never know whether the submitter skipped other maintainers/mailing lists or based the patches on some old tree. Both are happening. There is easy way to solve it - just pipe entire patchset via get_maintainers (--no-git) and do not de/select manually people, unless CC list grows too much. > >>> diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >>> new file mode 100644 >>> index 0000000000000..e082a0df7895a >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >> >> rockchip,dfi.yaml > > ok. > >> >>> @@ -0,0 +1,38 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Rockchip DFI >>> + >>> +maintainers: >>> + - Sascha Hauer <s.hauer@pengutronix.de> >>> + >>> +properties: >>> + compatible: >>> + enum: >>> + - rk3399-dfi >>> + - rk3568-dfi >> >> These are not correct compatibles. > > What's wrong with them? They are different than old ones, because they miss vendor prefix. > >> >>> + >>> + clocks: >>> + maxItems: 1 >>> + >>> + rockchip,pmu: >>> + $ref: /schemas/types.yaml#/definitions/phandle >>> + description: >>> + Phandle to the syscon managing the "PMU general register files". >>> + >>> +required: >>> + - compatible >>> + - reg >> >> clocks were required > > They are no longer, the RK3568 doesn't have a clock. Do I have to add > something to make the clock optional on RK3568 only? Then it's a change during conversion and not necessarily justified. The conversion should not add new compatibles. Some changes are okay if they are needed for conversion, but adding new stuff is better to keep in separate patch. You need allOf:if:then: requiring the clocks for older variant. Best regards, Krzysztof
On 03/02/2023 17:02, Sascha Hauer wrote: > On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: >> On 03/02/2023 13:50, Sascha Hauer wrote: >>> Convert the Rockchip DFI binding to yaml. While at it add the newly >>> supported rk3568-dfi to the binding. >>> >>> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> >> >> Please use scripts/get_maintainers.pl to get a list of necessary people >> and lists to CC. It might happen, that command when run on an older >> kernel, gives you outdated entries. Therefore please be sure you base >> your patches on recent Linux kernel. > > That's what I did. I skipped you and Rob because I know you're wathcing > the list anyway. Rob is apparently ok with that but I prefer not to be skipped, because: 1. such emails end up in entirely different mailbox, 2. I never know whether the submitter skipped other maintainers/mailing lists or based the patches on some old tree. Both are happening. There is easy way to solve it - just pipe entire patchset via get_maintainers (--no-git) and do not de/select manually people, unless CC list grows too much. > >>> diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >>> new file mode 100644 >>> index 0000000000000..e082a0df7895a >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >> >> rockchip,dfi.yaml > > ok. > >> >>> @@ -0,0 +1,38 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Rockchip DFI >>> + >>> +maintainers: >>> + - Sascha Hauer <s.hauer@pengutronix.de> >>> + >>> +properties: >>> + compatible: >>> + enum: >>> + - rk3399-dfi >>> + - rk3568-dfi >> >> These are not correct compatibles. > > What's wrong with them? They are different than old ones, because they miss vendor prefix. > >> >>> + >>> + clocks: >>> + maxItems: 1 >>> + >>> + rockchip,pmu: >>> + $ref: /schemas/types.yaml#/definitions/phandle >>> + description: >>> + Phandle to the syscon managing the "PMU general register files". >>> + >>> +required: >>> + - compatible >>> + - reg >> >> clocks were required > > They are no longer, the RK3568 doesn't have a clock. Do I have to add > something to make the clock optional on RK3568 only? Then it's a change during conversion and not necessarily justified. The conversion should not add new compatibles. Some changes are okay if they are needed for conversion, but adding new stuff is better to keep in separate patch. You need allOf:if:then: requiring the clocks for older variant. Best regards, Krzysztof _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
On 03/02/2023 17:02, Sascha Hauer wrote: > On Fri, Feb 03, 2023 at 04:14:56PM +0100, Krzysztof Kozlowski wrote: >> On 03/02/2023 13:50, Sascha Hauer wrote: >>> Convert the Rockchip DFI binding to yaml. While at it add the newly >>> supported rk3568-dfi to the binding. >>> >>> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> >> >> Please use scripts/get_maintainers.pl to get a list of necessary people >> and lists to CC. It might happen, that command when run on an older >> kernel, gives you outdated entries. Therefore please be sure you base >> your patches on recent Linux kernel. > > That's what I did. I skipped you and Rob because I know you're wathcing > the list anyway. Rob is apparently ok with that but I prefer not to be skipped, because: 1. such emails end up in entirely different mailbox, 2. I never know whether the submitter skipped other maintainers/mailing lists or based the patches on some old tree. Both are happening. There is easy way to solve it - just pipe entire patchset via get_maintainers (--no-git) and do not de/select manually people, unless CC list grows too much. > >>> diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >>> new file mode 100644 >>> index 0000000000000..e082a0df7895a >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml >> >> rockchip,dfi.yaml > > ok. > >> >>> @@ -0,0 +1,38 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/devfreq/event/rockchip-dfi.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Rockchip DFI >>> + >>> +maintainers: >>> + - Sascha Hauer <s.hauer@pengutronix.de> >>> + >>> +properties: >>> + compatible: >>> + enum: >>> + - rk3399-dfi >>> + - rk3568-dfi >> >> These are not correct compatibles. > > What's wrong with them? They are different than old ones, because they miss vendor prefix. > >> >>> + >>> + clocks: >>> + maxItems: 1 >>> + >>> + rockchip,pmu: >>> + $ref: /schemas/types.yaml#/definitions/phandle >>> + description: >>> + Phandle to the syscon managing the "PMU general register files". >>> + >>> +required: >>> + - compatible >>> + - reg >> >> clocks were required > > They are no longer, the RK3568 doesn't have a clock. Do I have to add > something to make the clock optional on RK3568 only? Then it's a change during conversion and not necessarily justified. The conversion should not add new compatibles. Some changes are okay if they are needed for conversion, but adding new stuff is better to keep in separate patch. You need allOf:if:then: requiring the clocks for older variant. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On Fri, 03 Feb 2023 13:50:12 +0100, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.example.dtb: /example-0/dfi@fe230000: failed to match any schema with compatible: ['rockchip,rk3568-dfi'] doc reference errors (make refcheckdocs): Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230203125012.3804008-19-s.hauer@pengutronix.de The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema.
On Fri, 03 Feb 2023 13:50:12 +0100, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.example.dtb: /example-0/dfi@fe230000: failed to match any schema with compatible: ['rockchip,rk3568-dfi'] doc reference errors (make refcheckdocs): Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230203125012.3804008-19-s.hauer@pengutronix.de The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema. _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
On Fri, 03 Feb 2023 13:50:12 +0100, Sascha Hauer wrote: > Convert the Rockchip DFI binding to yaml. While at it add the newly > supported rk3568-dfi to the binding. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > .../bindings/devfreq/event/rockchip-dfi.txt | 18 --------- > .../bindings/devfreq/event/rockchip-dfi.yaml | 38 +++++++++++++++++++ > 2 files changed, 38 insertions(+), 18 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt > create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.yaml > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.example.dtb: /example-0/dfi@fe230000: failed to match any schema with compatible: ['rockchip,rk3568-dfi'] doc reference errors (make refcheckdocs): Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230203125012.3804008-19-s.hauer@pengutronix.de The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Hi Sascha, I love your patch! Perhaps something to improve: [auto build test WARNING on rockchip/for-next] [also build test WARNING on arm/for-next arm/fixes arm64/for-next/core clk/clk-next kvmarm/next shawnguo/for-next soc/for-next xilinx-xlnx/master linus/master v6.2-rc6 next-20230203] [cannot apply to chanwoo/devfreq-testing] [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/Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next patch link: https://lore.kernel.org/r/20230203125012.3804008-19-s.hauer%40pengutronix.de patch subject: [PATCH 18/18] dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml reproduce: # https://github.com/intel-lab-lkp/linux/commit/b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 git checkout b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): >> Warning: Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml references a file that doesn't exist: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
Hi Sascha, I love your patch! Perhaps something to improve: [auto build test WARNING on rockchip/for-next] [also build test WARNING on arm/for-next arm/fixes arm64/for-next/core clk/clk-next kvmarm/next shawnguo/for-next soc/for-next xilinx-xlnx/master linus/master v6.2-rc6 next-20230203] [cannot apply to chanwoo/devfreq-testing] [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/Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next patch link: https://lore.kernel.org/r/20230203125012.3804008-19-s.hauer%40pengutronix.de patch subject: [PATCH 18/18] dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml reproduce: # https://github.com/intel-lab-lkp/linux/commit/b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 git checkout b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): >> Warning: Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml references a file that doesn't exist: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
Hi Sascha, I love your patch! Perhaps something to improve: [auto build test WARNING on rockchip/for-next] [also build test WARNING on arm/for-next arm/fixes arm64/for-next/core clk/clk-next kvmarm/next shawnguo/for-next soc/for-next xilinx-xlnx/master linus/master v6.2-rc6 next-20230203] [cannot apply to chanwoo/devfreq-testing] [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/Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next patch link: https://lore.kernel.org/r/20230203125012.3804008-19-s.hauer%40pengutronix.de patch subject: [PATCH 18/18] dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml reproduce: # https://github.com/intel-lab-lkp/linux/commit/b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sascha-Hauer/PM-devfreq-rockchip-dfi-Embed-desc-into-private-data-struct/20230203-205252 git checkout b6385ff60bdb4b1b2895d87a7f294fde81f10ee9 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): >> Warning: Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml references a file that doesn't exist: Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel