1 // SPDX-License-Identifier: GPL-2.0
33 	tracing_reset_online_cpus(&tr->array_buffer);  in mmio_reset_data()
68 			 dev->bus->number, dev->devfn,  in mmio_print_pcidev()
69 			 dev->vendor, dev->device, dev->irq);  in mmio_print_pcidev()
71 		start = dev->resource[i].start;  in mmio_print_pcidev()
74 			(dev->resource[i].flags & PCI_REGION_FLAG_MASK)));  in mmio_print_pcidev()
77 		start = dev->resource[i].start;  in mmio_print_pcidev()
78 		end = dev->resource[i].end;  in mmio_print_pcidev()
80 			dev->resource[i].start < dev->resource[i].end ?  in mmio_print_pcidev()
81 			(unsigned long long)(end - start) + 1 : 0);  in mmio_print_pcidev()
84 		trace_seq_printf(s, " %s\n", drv->name);  in mmio_print_pcidev()
93 	pci_dev_put(hiter->dev);  in destroy_header_iter()
100 	struct trace_seq *s = &iter->seq;  in mmio_pipe_open()
108 	hiter->dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);  in mmio_pipe_open()
109 	iter->private = hiter;  in mmio_pipe_open()
115 	struct header_iter *hiter = iter->private;  in mmio_close()
117 	iter->private = NULL;  in mmio_close()
122 	unsigned long cnt = atomic_xchg(&dropped_count, 0);  in count_overruns()  local
123 	unsigned long over = ring_buffer_overruns(iter->array_buffer->buffer);  in count_overruns()
126 		cnt += over - prev_overruns;  in count_overruns()
128 	return cnt;  in count_overruns()
132 				char __user *ubuf, size_t cnt, loff_t *ppos)  in mmio_read()  argument
135 	struct header_iter *hiter = iter->private;  in mmio_read()
136 	struct trace_seq *s = &iter->seq;  in mmio_read()
152 	mmio_print_pcidev(s, hiter->dev);  in mmio_read()
153 	hiter->dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, hiter->dev);  in mmio_read()
155 	if (!hiter->dev) {  in mmio_read()
157 		iter->private = NULL;  in mmio_read()
161 	ret = trace_seq_to_user(s, ubuf, cnt);  in mmio_read()
162 	return (ret == -EBUSY) ? 0 : ret;  in mmio_read()
165 static enum print_line_t mmio_print_rw(struct trace_iterator *iter)  in mmio_print_rw()
167 	struct trace_entry *entry = iter->ent;  in mmio_print_rw()
170 	struct trace_seq *s	= &iter->seq;  in mmio_print_rw()
171 	unsigned long long t	= ns2usecs(iter->ts);  in mmio_print_rw()
176 	rw = &field->rw;  in mmio_print_rw()
178 	switch (rw->opcode) {  in mmio_print_rw()
182 			rw->width, secs, usec_rem, rw->map_id,  in mmio_print_rw()
183 			(unsigned long long)rw->phys,  in mmio_print_rw()
184 			rw->value, rw->pc, 0);  in mmio_print_rw()
189 			rw->width, secs, usec_rem, rw->map_id,  in mmio_print_rw()
190 			(unsigned long long)rw->phys,  in mmio_print_rw()
191 			rw->value, rw->pc, 0);  in mmio_print_rw()
197 			secs, usec_rem, rw->map_id,  in mmio_print_rw()
198 			(unsigned long long)rw->phys,  in mmio_print_rw()
199 			(rw->value >> 16) & 0xff, (rw->value >> 8) & 0xff,  in mmio_print_rw()
200 			(rw->value >> 0) & 0xff, rw->pc, 0);  in mmio_print_rw()
210 static enum print_line_t mmio_print_map(struct trace_iterator *iter)  in mmio_print_map()
212 	struct trace_entry *entry = iter->ent;  in mmio_print_map()
215 	struct trace_seq *s	= &iter->seq;  in mmio_print_map()
216 	unsigned long long t	= ns2usecs(iter->ts);  in mmio_print_map()
221 	m = &field->map;  in mmio_print_map()
223 	switch (m->opcode) {  in mmio_print_map()
227 			secs, usec_rem, m->map_id,  in mmio_print_map()
228 			(unsigned long long)m->phys, m->virt, m->len,  in mmio_print_map()
234 			secs, usec_rem, m->map_id, 0UL, 0);  in mmio_print_map()
244 static enum print_line_t mmio_print_mark(struct trace_iterator *iter)  in mmio_print_mark()
246 	struct trace_entry *entry = iter->ent;  in mmio_print_mark()
248 	const char *msg		= print->buf;  in mmio_print_mark()
249 	struct trace_seq *s	= &iter->seq;  in mmio_print_mark()
250 	unsigned long long t	= ns2usecs(iter->ts);  in mmio_print_mark()
260 static enum print_line_t mmio_print_line(struct trace_iterator *iter)  in mmio_print_line()
262 	switch (iter->ent->type) {  in mmio_print_line()
276 	.name		= "mmiotrace",
296 	struct trace_buffer *buffer = tr->array_buffer.buffer;  in __trace_mmiotrace_rw()
309 	entry->rw			= *rw;  in __trace_mmiotrace_rw()
323 	struct trace_buffer *buffer = tr->array_buffer.buffer;  in __trace_mmiotrace_map()
336 	entry->map			= *map;  in __trace_mmiotrace_map()