28 void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata)  in tmc_wait_for_tmcready()  argument
31 	if (coresight_timeout(drvdata->base,  in tmc_wait_for_tmcready()
33 		dev_err(drvdata->dev,  in tmc_wait_for_tmcready()
38 void tmc_flush_and_stop(struct tmc_drvdata *drvdata)  in tmc_flush_and_stop()  argument
42 	ffcr = readl_relaxed(drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
44 	writel_relaxed(ffcr, drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
46 	writel_relaxed(ffcr, drvdata->base + TMC_FFCR);  in tmc_flush_and_stop()
48 	if (coresight_timeout(drvdata->base,  in tmc_flush_and_stop()
50 		dev_err(drvdata->dev,  in tmc_flush_and_stop()
54 	tmc_wait_for_tmcready(drvdata);  in tmc_flush_and_stop()
57 void tmc_enable_hw(struct tmc_drvdata *drvdata)  in tmc_enable_hw()  argument
59 	writel_relaxed(TMC_CTL_CAPT_EN, drvdata->base + TMC_CTL);  in tmc_enable_hw()
62 void tmc_disable_hw(struct tmc_drvdata *drvdata)  in tmc_disable_hw()  argument
64 	writel_relaxed(0x0, drvdata->base + TMC_CTL);  in tmc_disable_hw()
67 static int tmc_read_prepare(struct tmc_drvdata *drvdata)  in tmc_read_prepare()  argument
71 	switch (drvdata->config_type) {  in tmc_read_prepare()
74 		ret = tmc_read_prepare_etb(drvdata);  in tmc_read_prepare()
77 		ret = tmc_read_prepare_etr(drvdata);  in tmc_read_prepare()
84 		dev_info(drvdata->dev, "TMC read start\n");  in tmc_read_prepare()
89 static int tmc_read_unprepare(struct tmc_drvdata *drvdata)  in tmc_read_unprepare()  argument
93 	switch (drvdata->config_type) {  in tmc_read_unprepare()
96 		ret = tmc_read_unprepare_etb(drvdata);  in tmc_read_unprepare()
99 		ret = tmc_read_unprepare_etr(drvdata);  in tmc_read_unprepare()
106 		dev_info(drvdata->dev, "TMC read end\n");  in tmc_read_unprepare()
114 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_open()  local
117 	ret = tmc_read_prepare(drvdata);  in tmc_open()
123 	dev_dbg(drvdata->dev, "%s: successfully opened\n", __func__);  in tmc_open()
127 static inline ssize_t tmc_get_sysfs_trace(struct tmc_drvdata *drvdata,  in tmc_get_sysfs_trace()  argument
130 	switch (drvdata->config_type) {  in tmc_get_sysfs_trace()
133 		return tmc_etb_get_sysfs_trace(drvdata, pos, len, bufpp);  in tmc_get_sysfs_trace()
135 		return tmc_etr_get_sysfs_trace(drvdata, pos, len, bufpp);  in tmc_get_sysfs_trace()
146 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_read()  local
148 	actual = tmc_get_sysfs_trace(drvdata, *ppos, len, &bufp);  in tmc_read()
153 		dev_dbg(drvdata->dev, "%s: copy_to_user failed\n", __func__);  in tmc_read()
158 	dev_dbg(drvdata->dev, "%zu bytes copied\n", actual);  in tmc_read()
166 	struct tmc_drvdata *drvdata = container_of(file->private_data,  in tmc_release()  local
169 	ret = tmc_read_unprepare(drvdata);  in tmc_release()
173 	dev_dbg(drvdata->dev, "%s: released\n", __func__);  in tmc_release()
257 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in trigger_cntr_show()  local
258 	unsigned long val = drvdata->trigger_cntr;  in trigger_cntr_show()
269 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in trigger_cntr_store()  local
275 	drvdata->trigger_cntr = val;  in trigger_cntr_store()
283 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in buffer_size_show()  local
285 	return sprintf(buf, "%#x\n", drvdata->size);  in buffer_size_show()
294 	struct tmc_drvdata *drvdata = dev_get_drvdata(dev->parent);  in buffer_size_store()  local
297 	if (drvdata->config_type != TMC_CONFIG_TYPE_ETR)  in buffer_size_store()
306 	drvdata->size = val;  in buffer_size_store()
333 static inline bool tmc_etr_can_use_sg(struct tmc_drvdata *drvdata)  in tmc_etr_can_use_sg()  argument
335 	return fwnode_property_present(drvdata->dev->fwnode,  in tmc_etr_can_use_sg()
340 static int tmc_etr_setup_caps(struct tmc_drvdata *drvdata,  in tmc_etr_setup_caps()  argument
346 	tmc_etr_init_caps(drvdata, (u32)(unsigned long)dev_caps);  in tmc_etr_setup_caps()
348 	if (!(devid & TMC_DEVID_NOSCAT) && tmc_etr_can_use_sg(drvdata))  in tmc_etr_setup_caps()
349 		tmc_etr_set_cap(drvdata, TMC_ETR_SG);  in tmc_etr_setup_caps()
366 		dev_info(drvdata->dev, "Detected dma mask %dbits\n", dma_mask);  in tmc_etr_setup_caps()
372 	return dma_set_mask_and_coherent(drvdata->dev, DMA_BIT_MASK(dma_mask));  in tmc_etr_setup_caps()
382 	struct tmc_drvdata *drvdata;  in tmc_probe()  local
397 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);  in tmc_probe()
398 	if (!drvdata)  in tmc_probe()
401 	drvdata->dev = &adev->dev;  in tmc_probe()
402 	dev_set_drvdata(dev, drvdata);  in tmc_probe()
411 	drvdata->base = base;  in tmc_probe()
413 	spin_lock_init(&drvdata->spinlock);  in tmc_probe()
415 	devid = readl_relaxed(drvdata->base + CORESIGHT_DEVID);  in tmc_probe()
416 	drvdata->config_type = BMVAL(devid, 6, 7);  in tmc_probe()
417 	drvdata->memwidth = tmc_get_memwidth(devid);  in tmc_probe()
419 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {  in tmc_probe()
423 						   &drvdata->size);  in tmc_probe()
425 			drvdata->size = SZ_1M;  in tmc_probe()
427 		drvdata->size = readl_relaxed(drvdata->base + TMC_RSZ) * 4;  in tmc_probe()
436 	switch (drvdata->config_type) {  in tmc_probe()
446 		ret = tmc_etr_setup_caps(drvdata, devid, id->data);  in tmc_probe()
461 	drvdata->csdev = coresight_register(&desc);  in tmc_probe()
462 	if (IS_ERR(drvdata->csdev)) {  in tmc_probe()
463 		ret = PTR_ERR(drvdata->csdev);  in tmc_probe()
467 	drvdata->miscdev.name = pdata->name;  in tmc_probe()
468 	drvdata->miscdev.minor = MISC_DYNAMIC_MINOR;  in tmc_probe()
469 	drvdata->miscdev.fops = &tmc_fops;  in tmc_probe()
470 	ret = misc_register(&drvdata->miscdev);  in tmc_probe()
472 		coresight_unregister(drvdata->csdev);  in tmc_probe()