34 int tmc_wait_for_tmcready(struct tmc_drvdata *drvdata)  in tmc_wait_for_tmcready()  argument
36 	struct coresight_device *csdev = drvdata->csdev;  in tmc_wait_for_tmcready()
48 void tmc_flush_and_stop(struct tmc_drvdata *drvdata)  in tmc_flush_and_stop()  argument
50 	struct coresight_device *csdev = drvdata->csdev;  in tmc_flush_and_stop()
54 	ffcr = readl_relaxed(drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
56 	writel_relaxed(ffcr, drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
58 	writel_relaxed(ffcr, drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
65 	tmc_wait_for_tmcready(drvdata);  in tmc_flush_and_stop()
68 void tmc_enable_hw(struct tmc_drvdata *drvdata)  in tmc_enable_hw()  argument
70 	writel_relaxed(TMC_CTL_CAPT_EN, drvdata->base + TMC_CTL);  in tmc_enable_hw()
73 void tmc_disable_hw(struct tmc_drvdata *drvdata)  in tmc_disable_hw()  argument
75 	writel_relaxed(0x0, drvdata->base + TMC_CTL);  in tmc_disable_hw()
78 u32 tmc_get_memwidth_mask(struct tmc_drvdata *drvdata)  in tmc_get_memwidth_mask()  argument
90 	switch (drvdata->memwidth) {  in tmc_get_memwidth_mask()
104 static int tmc_read_prepare(struct tmc_drvdata *drvdata)  in tmc_read_prepare()  argument
108 	switch (drvdata->config_type) {  in tmc_read_prepare()
111 		ret = tmc_read_prepare_etb(drvdata);  in tmc_read_prepare()
114 		ret = tmc_read_prepare_etr(drvdata);  in tmc_read_prepare()
121 		dev_dbg(&drvdata->csdev->dev, "TMC read start\n");  in tmc_read_prepare()
126 static int tmc_read_unprepare(struct tmc_drvdata *drvdata)  in tmc_read_unprepare()  argument
130 	switch (drvdata->config_type) {  in tmc_read_unprepare()
133 		ret = tmc_read_unprepare_etb(drvdata);  in tmc_read_unprepare()
136 		ret = tmc_read_unprepare_etr(drvdata);  in tmc_read_unprepare()
143 		dev_dbg(&drvdata->csdev->dev, "TMC read end\n");  in tmc_read_unprepare()
151 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_open()  local
154 	ret = tmc_read_prepare(drvdata);  in tmc_open()
160 	dev_dbg(&drvdata->csdev->dev, "%s: successfully opened\n", __func__);  in tmc_open()
164 static inline ssize_t tmc_get_sysfs_trace(struct tmc_drvdata *drvdata,  in tmc_get_sysfs_trace()  argument
167 	switch (drvdata->config_type) {  in tmc_get_sysfs_trace()
170 		return tmc_etb_get_sysfs_trace(drvdata, pos, len, bufpp);  in tmc_get_sysfs_trace()
172 		return tmc_etr_get_sysfs_trace(drvdata, pos, len, bufpp);  in tmc_get_sysfs_trace()
183 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_read()  local
185 	actual = tmc_get_sysfs_trace(drvdata, *ppos, len, &bufp);  in tmc_read()
190 		dev_dbg(&drvdata->csdev->dev,  in tmc_read()
196 	dev_dbg(&drvdata->csdev->dev, "%zu bytes copied\n", actual);  in tmc_read()
204 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_release()  local
207 	ret = tmc_read_unprepare(drvdata);  in tmc_release()
211 	dev_dbg(&drvdata->csdev->dev, "%s: released\n", __func__);  in tmc_release()
297 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in trigger_cntr_show()  local
298 	unsigned long val = drvdata->trigger_cntr;  in trigger_cntr_show()
309 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in trigger_cntr_store()  local
315 	drvdata->trigger_cntr = val;  in trigger_cntr_store()
323 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in buffer_size_show()  local
325 	return sprintf(buf, "%#x\n", drvdata->size);  in buffer_size_show()
334 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in buffer_size_store()  local
337 	if (drvdata->config_type != TMC_CONFIG_TYPE_ETR)  in buffer_size_store()
346 	drvdata->size = val;  in buffer_size_store()
378 static inline bool tmc_etr_has_non_secure_access(struct tmc_drvdata *drvdata)  in tmc_etr_has_non_secure_access()  argument
380 	u32 auth = readl_relaxed(drvdata->base + TMC_AUTHSTATUS);  in tmc_etr_has_non_secure_access()
390 	struct tmc_drvdata *drvdata = dev_get_drvdata(parent);  in tmc_etr_setup_caps()  local
392 	if (!tmc_etr_has_non_secure_access(drvdata))  in tmc_etr_setup_caps()
396 	tmc_etr_init_caps(drvdata, (u32)(unsigned long)dev_caps);  in tmc_etr_setup_caps()
399 		tmc_etr_set_cap(drvdata, TMC_ETR_SG);  in tmc_etr_setup_caps()
459 	struct tmc_drvdata *drvdata;  in tmc_probe()  local
465 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);  in tmc_probe()
466 	if (!drvdata)  in tmc_probe()
469 	dev_set_drvdata(dev, drvdata);  in tmc_probe()
478 	drvdata->base = base;  in tmc_probe()
481 	spin_lock_init(&drvdata->spinlock);  in tmc_probe()
483 	devid = readl_relaxed(drvdata->base + CORESIGHT_DEVID);  in tmc_probe()
484 	drvdata->config_type = BMVAL(devid, 6, 7);  in tmc_probe()
485 	drvdata->memwidth = tmc_get_memwidth(devid);  in tmc_probe()
487 	drvdata->pid = -1;  in tmc_probe()
489 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {  in tmc_probe()
490 		drvdata->size = tmc_etr_get_default_buffer_size(dev);  in tmc_probe()
491 		drvdata->max_burst_size = tmc_etr_get_max_burst_size(dev);  in tmc_probe()
493 		drvdata->size = readl_relaxed(drvdata->base + TMC_RSZ) * 4;  in tmc_probe()
499 	switch (drvdata->config_type) {  in tmc_probe()
514 		idr_init(&drvdata->idr);  in tmc_probe()
515 		mutex_init(&drvdata->idr_mutex);  in tmc_probe()
545 	drvdata->csdev = coresight_register(&desc);  in tmc_probe()
546 	if (IS_ERR(drvdata->csdev)) {  in tmc_probe()
547 		ret = PTR_ERR(drvdata->csdev);  in tmc_probe()
551 	drvdata->miscdev.name = desc.name;  in tmc_probe()
552 	drvdata->miscdev.minor = MISC_DYNAMIC_MINOR;  in tmc_probe()
553 	drvdata->miscdev.fops = &tmc_fops;  in tmc_probe()
554 	ret = misc_register(&drvdata->miscdev);  in tmc_probe()
556 		coresight_unregister(drvdata->csdev);  in tmc_probe()
566 	struct tmc_drvdata *drvdata = amba_get_drvdata(adev);  in tmc_shutdown()  local
568 	spin_lock_irqsave(&drvdata->spinlock, flags);  in tmc_shutdown()
570 	if (drvdata->mode == CS_MODE_DISABLED)  in tmc_shutdown()
573 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)  in tmc_shutdown()
574 		tmc_etr_disable_hw(drvdata);  in tmc_shutdown()
582 	spin_unlock_irqrestore(&drvdata->spinlock, flags);  in tmc_shutdown()
587 	struct tmc_drvdata *drvdata = dev_get_drvdata(&adev->dev);  in tmc_remove()  local
594 	misc_deregister(&drvdata->miscdev);  in tmc_remove()
595 	coresight_unregister(drvdata->csdev);  in tmc_remove()