1 /* SPDX-License-Identifier: GPL-2.0 */
17 /* Peripheral id registers (0xFD0-0xFEC) */
26 /* Component id registers (0xFF0-0xFFC) */
78  * union coresight_dev_subtype - further characterisation of a type
99  * struct coresight_platform_data - data harvested from the firmware
118  * struct csdev_access - Abstraction of a CoreSight device access.
144  * struct coresight_desc - description of a component required from drivers
152  *		in the component's sysfs sub-directory.
153  * @name:	name for the coresight device, also shown under sysfs.
168  * struct coresight_connection - representation of a single connection
179  * +-----------------------------+   +-----------------------------+
181  * |-----------------------------|   |-----------------------------|
183  * |                             |   |                    dest_dev*|<--
184  * |pdata->out_conns[nr_outconns]|<->|src_dev*                     |   |
186  * +-----------------------------+   +-----------------------------+   |
188  *                                   +-----------------------------+   |
190  *                                   |------------------------------   |
192  *                                   |  pdata->in_conns[nr_inconns]|<--
194  *                                   +-----------------------------+
208  * struct coresight_sysfs_link - representation of a connection in sysfs.
209  * @orig:		Originating (master) coresight device for the link.
210  * @orig_name:		Name to use for the link orig->target.
211  * @target:		Target (slave) coresight device for the link.
212  * @target_name:	Name to use for the link target->orig.
240  * struct coresight_device - representation of a device as used by the framework
251  *		but wherever it's done from within the Coresight device's lock,
252  *		a non-atomic read would also work. This is the main point of
304  * coresight_dev_list - Mapping for devices to "name" index for device
333 #define source_ops(csdev)	csdev->ops->source_ops
334 #define sink_ops(csdev)		csdev->ops->sink_ops
335 #define link_ops(csdev)		csdev->ops->link_ops
336 #define helper_ops(csdev)	csdev->ops->helper_ops
337 #define ect_ops(csdev)		csdev->ops->ect_ops
340  * struct coresight_ops_sink - basic operations for a sink
362  * struct coresight_ops_link - basic operations for a link
377  * struct coresight_ops_source - basic operations for a source
393  * struct coresight_ops_helper - Operations for a helper device.
417 	if (likely(csa->io_mem))  in csdev_access_relaxed_read32()
418 		return readl_relaxed(csa->base + offset);  in csdev_access_relaxed_read32()
420 	return csa->read(offset, true, false);  in csdev_access_relaxed_read32()
447  * clk   - Clock is found and enabled
448  * NULL  - clock is not found
449  * ERROR - Clock is found but failed to enable
483 	if (likely(csa->io_mem)) {  in csdev_access_relaxed_read_pair()
484 		return readl_relaxed(csa->base + lo_offset) |  in csdev_access_relaxed_read_pair()
485 			((u64)readl_relaxed(csa->base + hi_offset) << 32);  in csdev_access_relaxed_read_pair()
488 	return csa->read(lo_offset, true, false) | (csa->read(hi_offset, true, false) << 32);  in csdev_access_relaxed_read_pair()
494 	if (likely(csa->io_mem)) {  in csdev_access_relaxed_write_pair()
495 		writel_relaxed((u32)val, csa->base + lo_offset);  in csdev_access_relaxed_write_pair()
496 		writel_relaxed((u32)(val >> 32), csa->base + hi_offset);  in csdev_access_relaxed_write_pair()
498 		csa->write((u32)val, lo_offset, true, false);  in csdev_access_relaxed_write_pair()
499 		csa->write((u32)(val >> 32), hi_offset, true, false);  in csdev_access_relaxed_write_pair()
505 	if (likely(csa->io_mem))  in csdev_access_read32()
506 		return readl(csa->base + offset);  in csdev_access_read32()
508 	return csa->read(offset, false, false);  in csdev_access_read32()
514 	if (likely(csa->io_mem))  in csdev_access_relaxed_write32()
515 		writel_relaxed(val, csa->base + offset);  in csdev_access_relaxed_write32()
517 		csa->write(val, offset, true, false);  in csdev_access_relaxed_write32()
522 	if (likely(csa->io_mem))  in csdev_access_write32()
523 		writel(val, csa->base + offset);  in csdev_access_write32()
525 		csa->write(val, offset, false, false);  in csdev_access_write32()
533 	if (likely(csa->io_mem))  in csdev_access_relaxed_read64()
534 		return readq_relaxed(csa->base + offset);  in csdev_access_relaxed_read64()
536 	return csa->read(offset, true, true);  in csdev_access_relaxed_read64()
541 	if (likely(csa->io_mem))  in csdev_access_read64()
542 		return readq(csa->base + offset);  in csdev_access_read64()
544 	return csa->read(offset, false, true);  in csdev_access_read64()
550 	if (likely(csa->io_mem))  in csdev_access_relaxed_write64()
551 		writeq_relaxed(val, csa->base + offset);  in csdev_access_relaxed_write64()
553 		csa->write(val, offset, true, true);  in csdev_access_relaxed_write64()
558 	if (likely(csa->io_mem))  in csdev_access_write64()
559 		writeq(val, csa->base + offset);  in csdev_access_write64()
561 		csa->write(val, offset, false, true);  in csdev_access_write64()
593 	return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&  in coresight_is_percpu_source()
594 	       (csdev->subtype.source_subtype == CORESIGHT_DEV_SUBTYPE_SOURCE_PROC);  in coresight_is_percpu_source()
599 	return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SINK) &&  in coresight_is_percpu_sink()
600 	       (csdev->subtype.sink_subtype == CORESIGHT_DEV_SUBTYPE_SINK_PERCPU_SYSMEM);  in coresight_is_percpu_sink()
610 	return local_cmpxchg(&csdev->mode, CS_MODE_DISABLED, new_mode) ==  in coresight_take_mode()
616 	return local_read(&csdev->mode);  in coresight_get_mode()
632 	local_set(&csdev->mode, new_mode);  in coresight_set_mode()