1 // SPDX-License-Identifier: GPL-2.0 1
2 #include <asm/io.h>
3 #include <asm/hvcall.h>
4
5 #include "hv-gpci.h"
6 #include "hv-common.h"
7
8 unsigned long hv_perf_caps_get(struct hv_perf_
9 {
10 unsigned long r;
11 struct p {
12 struct hv_get_perf_counter_inf
13 struct hv_gpci_system_performa
14 } __packed __aligned(sizeof(uint64_t))
15
16 struct p arg = {
17 .params = {
18 .counter_request = cpu
19 HV_GPCI_system
20 .starting_index = cpu_
21 .counter_info_version_
22 }
23 };
24
25 r = plpar_hcall_norets(H_GET_PERF_COUN
26 virt_to_phys(&a
27
28 if (r)
29 return r;
30
31 pr_devel("capability_mask: 0x%x\n", ar
32
33 caps->version = arg.params.counter_inf
34 caps->collect_privileged = !!arg.caps.
35 caps->ga = !!(arg.caps.capability_mask
36 caps->expanded = !!(arg.caps.capabilit
37 caps->lab = !!(arg.caps.capability_mas
38
39 return r;
40 }
41
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.