write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/hwtracing/intel_th/intel_th.h
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@@ -8,6 +8,8 @@
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 #ifndef __INTEL_TH_H__
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 #define __INTEL_TH_H__
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+#include <linux/irqreturn.h>
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+
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 /* intel_th_device device types */
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 enum {
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 	/* Devices that generate trace data */
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@@ -18,6 +20,8 @@
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 	INTEL_TH_SWITCH,
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 };
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+struct intel_th_device;
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+
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 /**
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  * struct intel_th_output - descriptor INTEL_TH_OUTPUT type devices
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  * @port:	output port number, assigned by the switch
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@@ -25,6 +29,7 @@
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  * @scratchpad:	scratchpad bits to flag when this output is enabled
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  * @multiblock:	true for multiblock output configuration
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  * @active:	true when this output is enabled
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+ * @wait_empty:	wait for device pipeline to be empty
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  *
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  * Output port descriptor, used by switch driver to tell which output
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  * port this output device corresponds to. Filled in at output device's
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@@ -42,10 +47,14 @@
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 /**
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  * struct intel_th_drvdata - describes hardware capabilities and quirks
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  * @tscu_enable:	device needs SW to enable time stamping unit
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+ * @multi_is_broken:	device has multiblock mode is broken
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+ * @has_mintctl:	device has interrupt control (MINTCTL) register
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  * @host_mode_only:	device can only operate in 'host debugger' mode
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  */
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 struct intel_th_drvdata {
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 	unsigned int	tscu_enable        : 1,
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+			multi_is_broken    : 1,
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+			has_mintctl        : 1,
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 			host_mode_only     : 1;
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 };
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@@ -160,10 +169,13 @@
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 					   struct intel_th_output *output);
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 	void			(*enable)(struct intel_th_device *thdev,
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 					  struct intel_th_output *output);
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+	void			(*trig_switch)(struct intel_th_device *thdev,
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+					       struct intel_th_output *output);
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 	void			(*disable)(struct intel_th_device *thdev,
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 					   struct intel_th_output *output);
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 	/* output ops */
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-	void			(*irq)(struct intel_th_device *thdev);
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+	irqreturn_t		(*irq)(struct intel_th_device *thdev);
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+	void			(*wait_empty)(struct intel_th_device *thdev);
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 	int			(*activate)(struct intel_th_device *thdev);
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 	void			(*deactivate)(struct intel_th_device *thdev);
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 	/* file_operations for those who want a device node */
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@@ -216,21 +228,23 @@
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 struct intel_th *
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 intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
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-	       struct resource *devres, unsigned int ndevres, int irq);
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+	       struct resource *devres, unsigned int ndevres);
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 void intel_th_free(struct intel_th *th);
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 int intel_th_driver_register(struct intel_th_driver *thdrv);
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 void intel_th_driver_unregister(struct intel_th_driver *thdrv);
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 int intel_th_trace_enable(struct intel_th_device *thdev);
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+int intel_th_trace_switch(struct intel_th_device *thdev);
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 int intel_th_trace_disable(struct intel_th_device *thdev);
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 int intel_th_set_output(struct intel_th_device *thdev,
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 			unsigned int master);
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 int intel_th_output_enable(struct intel_th *th, unsigned int otype);
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-enum {
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+enum th_mmio_idx {
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 	TH_MMIO_CONFIG = 0,
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-	TH_MMIO_SW = 2,
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+	TH_MMIO_SW = 1,
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+	TH_MMIO_RTIT = 2,
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 	TH_MMIO_END,
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 };
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@@ -240,6 +254,9 @@
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 #define TH_CONFIGURABLE_MASTERS 256
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 #define TH_MSC_MAX		2
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+/* Maximum IRQ vectors */
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+#define TH_NVEC_MAX		8
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+
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 /**
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  * struct intel_th - Intel TH controller
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  * @dev:	driver core's device
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@@ -247,8 +264,9 @@
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  * @hub:	"switch" subdevice (GTH)
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  * @resource:	resources of the entire controller
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  * @num_thdevs:	number of devices in the @thdev array
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- * @num_resources:	number or resources in the @resource array
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+ * @num_resources:	number of resources in the @resource array
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  * @irq:	irq number
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+ * @num_irqs:	number of IRQs is use
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  * @id:		this Intel TH controller's device ID in the system
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  * @major:	device node major for output devices
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  */
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@@ -259,12 +277,13 @@
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 	struct intel_th_device	*hub;
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 	struct intel_th_drvdata	*drvdata;
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-	struct resource		*resource;
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+	struct resource		resource[TH_MMIO_END];
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 	int			(*activate)(struct intel_th *);
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 	void			(*deactivate)(struct intel_th *);
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 	unsigned int		num_thdevs;
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 	unsigned int		num_resources;
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 	int			irq;
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+	int			num_irqs;
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 	int			id;
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 	int			major;
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@@ -299,6 +318,9 @@
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 	REG_TSCU_OFFSET		= 0x2000,
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 	REG_TSCU_LENGTH		= 0x1000,
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+	REG_CTS_OFFSET		= 0x3000,
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+	REG_CTS_LENGTH		= 0x1000,
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+
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 	/* Software Trace Hub (STH) [0x4000..0x4fff] */
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 	REG_STH_OFFSET		= 0x4000,
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 	REG_STH_LENGTH		= 0x2000,