1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef LINUX_POWERPC_PERF_HV_GPCI_H_
3 #define LINUX_POWERPC_PERF_HV_GPCI_H_
4
5 #include <linux/types.h>
6
7 /* From the document "H_GetPerformanceCounterInfo Interface" v1.07 */
8
9 /* H_GET_PERF_COUNTER_INFO argument */
10 struct hv_get_perf_counter_info_params {
11 __be32 counter_request; /* I */
12 __be32 starting_index; /* IO */
13 __be16 secondary_index; /* IO */
14 __be16 returned_values; /* O */
15 __be32 detail_rc; /* O, only needed when called via *_norets() */
16
17 /*
18 * O, size each of counter_value element in bytes, only set for version
19 * >= 0x3
20 */
21 __be16 cv_element_size;
22
23 /* I, 0 (zero) for versions < 0x3 */
24 __u8 counter_info_version_in;
25
26 /* O, 0 (zero) if version < 0x3. Must be set to 0 when making hcall */
27 __u8 counter_info_version_out;
28 __u8 reserved[0xC];
29 __u8 counter_value[];
30 } __packed;
31
32 /*
33 * counter info version => fw version/reference (spec version)
34 *
35 * 8 => power8 (1.07)
36 * [7 is skipped by spec 1.07]
37 * 6 => TLBIE (1.07)
38 * 5 => v7r7m0.phyp (1.05)
39 * [4 skipped]
40 * 3 => v7r6m0.phyp (?)
41 * [1,2 skipped]
42 * 0 => v7r{2,3,4}m0.phyp (?)
43 */
44 #define COUNTER_INFO_VERSION_CURRENT 0x8
45
46 /* capability mask masks. */
47 enum {
48 HV_GPCI_CM_GA = (1 << 7),
49 HV_GPCI_CM_EXPANDED = (1 << 6),
50 HV_GPCI_CM_LAB = (1 << 5)
51 };
52
53 #define REQUEST_FILE "../hv-gpci-requests.h"
54 #define NAME_LOWER hv_gpci
55 #define NAME_UPPER HV_GPCI
56 #include "req-gen/perf.h"
57 #undef REQUEST_FILE
58 #undef NAME_LOWER
59 #undef NAME_UPPER
60
61 #endif