powerpc/perf/hv-gpci.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
10 #define pr_fmt(fmt) "hv-gpci: " fmt
18 #include "hv-gpci.h"
19 #include "hv-common.h"
23  *  perf stat -e 'hv_gpci/counter_info_version=3,offset=0,length=8,
34  * used depends on the event. See REQUEST_IDX_KIND in hv-gpci-requests.h
36 EVENT_DEFINE_RANGE_FORMAT(starting_index, config, 32, 63);
37 EVENT_DEFINE_RANGE_FORMAT_LITE(phys_processor_idx, config, 32, 63);
38 EVENT_DEFINE_RANGE_FORMAT_LITE(sibling_part_id, config, 32, 63);
39 EVENT_DEFINE_RANGE_FORMAT_LITE(hw_chip_id, config, 32, 63);
40 EVENT_DEFINE_RANGE_FORMAT_LITE(partition_id, config, 32, 63);
46 /* u8, bytes of data (1-8) */
49 EVENT_DEFINE_RANGE_FORMAT(offset, config1, 32, 63);
86 		return -EIO;					\
160 	arg->params.counter_request = cpu_to_be32(req);  in single_gpci_request()
161 	arg->params.starting_index = cpu_to_be32(starting_index);  in single_gpci_request()
162 	arg->params.secondary_index = cpu_to_be16(secondary_index);  in single_gpci_request()
163 	arg->params.counter_info_version_in = version_in;  in single_gpci_request()
178 		count |= arg->bytes[i] << (i - offset);  in single_gpci_request()
205 	prev = local64_xchg(&event->hw.prev_count, now);  in h_gpci_event_update()
206 	local64_add(now - prev, &event->count);  in h_gpci_event_update()
211 	local64_set(&event->hw.prev_count, h_gpci_get_value(event));  in h_gpci_event_start()
233 	if (event->attr.type != event->pmu->type)  in h_gpci_event_init()
234 		return -ENOENT;  in h_gpci_event_init()
237 	if (event->attr.config2) {  in h_gpci_event_init()
239 		return -EINVAL;  in h_gpci_event_init()
244 		return -EOPNOTSUPP;  in h_gpci_event_init()
249 		return -EINVAL;  in h_gpci_event_init()
257 		return -EINVAL;  in h_gpci_event_init()
269 		return -EINVAL;  in h_gpci_event_init()
310 		return -1;  in ppc_hv_gpci_cpu_offline()
338 		return -ENODEV;  in hv_gpci_init()
345 		return -ENODEV;  in hv_gpci_init()
356 	r = perf_pmu_register(&h_gpci_pmu, h_gpci_pmu.name, -1);  in hv_gpci_init()