On Fri, 31 Jul 2020 at 07:42, Tingwei Zhang tingwei@codeaurora.org wrote:
From: Kim Phillips kim.phillips@arm.com
Allow to build coresight-funnel and coresight-replicator as modules, for ease of development.
- Kconfig becomes a tristate, to allow =m
- add funnel_remove and replicator_remove functions, for module unload
- add a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Leo Yan leo.yan@linaro.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Randy Dunlap rdunlap@infradead.org Cc: Suzuki K Poulose Suzuki.Poulose@arm.com Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Russell King linux@armlinux.org.uk Signed-off-by: Kim Phillips kim.phillips@arm.com Signed-off-by: Tingwei Zhang tingwei@codeaurora.org
drivers/hwtracing/coresight/Kconfig | 5 ++- .../hwtracing/coresight/coresight-funnel.c | 32 ++++++++++++++++++ .../coresight/coresight-replicator.c | 33 +++++++++++++++++++ 3 files changed, 69 insertions(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index fc48ae086746..f31778dd0b5d 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -17,13 +17,16 @@ menuconfig CORESIGHT
if CORESIGHT config CORESIGHT_LINKS_AND_SINKS
bool "CoreSight Link and Sink drivers"
tristate "CoreSight Link and Sink drivers" help This enables support for CoreSight link and sink drivers that are responsible for transporting and collecting the trace data respectively. Link and sinks are dynamically aggregated with a trace entity at run time to form a complete trace path.To compile these drivers as modules, choose M here: themodules will be called coresight-funnel and coresight-replicator.config CORESIGHT_LINK_AND_SINK_TMC tristate "Coresight generic TMC driver"
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c index 46b277ed8606..062694ef9879 100644 --- a/drivers/hwtracing/coresight/coresight-funnel.c +++ b/drivers/hwtracing/coresight/coresight-funnel.c @@ -274,6 +274,15 @@ static int funnel_probe(struct device *dev, struct resource *res) return ret; }
+static int __exit funnel_remove(struct device *dev) +{
struct funnel_drvdata *drvdata = dev_get_drvdata(dev);coresight_unregister(drvdata->csdev);return 0;+}
#ifdef CONFIG_PM static int funnel_runtime_suspend(struct device *dev) { @@ -319,20 +328,31 @@ static int static_funnel_probe(struct platform_device *pdev) return ret; }
+static int __exit static_funnel_remove(struct platform_device *pdev) +{
funnel_remove(&pdev->dev);pm_runtime_disable(&pdev->dev);return 0;+}
static const struct of_device_id static_funnel_match[] = { {.compatible = "arm,coresight-static-funnel"}, {} };
+MODULE_DEVICE_TABLE(of, static_funnel_match);
#ifdef CONFIG_ACPI static const struct acpi_device_id static_funnel_ids[] = { {"ARMHC9FE", 0}, {}, }; +MODULE_DEVICE_TABLE(acpi, static_funnel_ids); #endif
static struct platform_driver static_funnel_driver = { .probe = static_funnel_probe,
.probe = static_funnel_remove, .driver = { .name = "coresight-static-funnel", .of_match_table = static_funnel_match,@@ -348,6 +368,11 @@ static int dynamic_funnel_probe(struct amba_device *adev, return funnel_probe(&adev->dev, &adev->res); }
+static int __exit dynamic_funnel_remove(struct amba_device *adev) +{
return funnel_remove(&adev->dev);+}
static const struct amba_id dynamic_funnel_ids[] = { { .id = 0x000bb908, @@ -361,6 +386,8 @@ static const struct amba_id dynamic_funnel_ids[] = { { 0, 0}, };
+MODULE_DEVICE_TABLE(amba, dynamic_funnel_ids);
static struct amba_driver dynamic_funnel_driver = { .drv = { .name = "coresight-dynamic-funnel", @@ -369,6 +396,7 @@ static struct amba_driver dynamic_funnel_driver = { .suppress_bind_attrs = true, }, .probe = dynamic_funnel_probe,
.remove = dynamic_funnel_remove, .id_table = dynamic_funnel_ids,};
@@ -399,3 +427,7 @@ static void __exit funnel_exit(void)
module_init(funnel_init); module_exit(funnel_exit);
+MODULE_AUTHOR("Mathieu Poirier mathieu.poirier@linaro.org"); +MODULE_DESCRIPTION("Arm CoreSight Funnel Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c index 6b30bcee7458..05db434c79d0 100644 --- a/drivers/hwtracing/coresight/coresight-replicator.c +++ b/drivers/hwtracing/coresight/coresight-replicator.c @@ -291,6 +291,14 @@ static int replicator_probe(struct device *dev, struct resource *res) return ret; }
+static int __exit replicator_remove(struct device *dev) +{
struct replicator_drvdata *drvdata = dev_get_drvdata(dev);coresight_unregister(drvdata->csdev);return 0;+}
static int static_replicator_probe(struct platform_device *pdev) { int ret; @@ -310,6 +318,13 @@ static int static_replicator_probe(struct platform_device *pdev) return ret; }
+static int __exit static_replicator_remove(struct platform_device *pdev) +{
replicator_remove(&pdev->dev);pm_runtime_disable(&pdev->dev);return 0;+}
#ifdef CONFIG_PM static int replicator_runtime_suspend(struct device *dev) { @@ -342,18 +357,22 @@ static const struct of_device_id static_replicator_match[] = { {.compatible = "arm,coresight-static-replicator"}, {} }; +MODULE_DEVICE_TABLE(of, static_replicator_match);
#ifdef CONFIG_ACPI static const struct acpi_device_id static_replicator_acpi_ids[] = { {"ARMHC985", 0}, /* ARM CoreSight Static Replicator */ {} }; +MODULE_DEVICE_TABLE(acpi, static_replicator_acpi_ids); #endif
static struct platform_driver static_replicator_driver = { .probe = static_replicator_probe,
.remove = static_replicator_remove, .driver = { .name = "coresight-static-replicator",.owner = THIS_MODULE, .of_match_table = of_match_ptr(static_replicator_match), .acpi_match_table = ACPI_PTR(static_replicator_acpi_ids), .pm = &replicator_dev_pm_ops,@@ -367,19 +386,28 @@ static int dynamic_replicator_probe(struct amba_device *adev, return replicator_probe(&adev->dev, &adev->res); }
+static int __exit dynamic_replicator_remove(struct amba_device *adev) +{
return replicator_remove(&adev->dev);+}
static const struct amba_id dynamic_replicator_ids[] = { CS_AMBA_ID(0x000bb909), CS_AMBA_ID(0x000bb9ec), /* Coresight SoC-600 */ {}, };
+MODULE_DEVICE_TABLE(amba, dynamic_replicator_ids);
static struct amba_driver dynamic_replicator_driver = { .drv = { .name = "coresight-dynamic-replicator", .pm = &replicator_dev_pm_ops,
.owner = THIS_MODULE, .suppress_bind_attrs = true, }, .probe = dynamic_replicator_probe,.remove = dynamic_replicator_remove, .id_table = dynamic_replicator_ids,};
@@ -410,3 +438,8 @@ static void __exit replicator_exit(void)
module_init(replicator_init); module_exit(replicator_exit);
+MODULE_AUTHOR("Pratik Patel pratikp@codeaurora.org"); +MODULE_AUTHOR("Mathieu Poirier mathieu.poirier@linaro.org"); +MODULE_DESCRIPTION("Arm CoreSight Replicator Driver");
+MODULE_LICENSE("GPL v2");
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
Tested by: Mike Leach mike.leach@linaro.org
-- Mike Leach Principal Engineer, ARM Ltd. Manchester Design Centre. UK