1/*
2 * Copyright (c) 2013 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29#include <kern/energy_perf.h>
30#include <libsa/types.h>
31#include <sys/kdebug.h>
32#include <stddef.h>
33#include <machine/machine_routines.h>
34
35void gpu_describe(__unused gpu_descriptor_t gdesc) {
36 KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_ENERGY_PERF, 1), gdesc->gpu_id, gdesc->gpu_max_domains, 0, 0, 0);
37}
38
39uint64_t gpu_accumulate_time(__unused uint32_t scope, __unused uint32_t gpu_id, __unused uint32_t gpu_domain, __unused uint64_t gpu_accumulated_ns, __unused uint64_t gpu_tstamp_ns) {
40 KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_ENERGY_PERF, 2), scope, gpu_id, gpu_domain, gpu_accumulated_ns, gpu_tstamp_ns);
41 ml_gpu_stat_update(gpu_accumulated_ns);
42 return 0;
43}
44
45static uint64_t io_rate_update_cb_default(__unused uint64_t io_rate_flags, __unused uint64_t read_ops_delta, __unused uint64_t write_ops_delta, __unused uint64_t read_bytes_delta, __unused uint64_t write_bytes_delta) {
46 KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_ENERGY_PERF, 3), io_rate_flags, read_ops_delta, write_ops_delta, read_bytes_delta, write_bytes_delta);
47 return 0;
48}
49
50io_rate_update_callback_t io_rate_update_cb = io_rate_update_cb_default;
51
52void io_rate_update_register(io_rate_update_callback_t io_rate_update_cb_new) {
53 if (io_rate_update_cb_new != NULL) {
54 io_rate_update_cb = io_rate_update_cb_new;
55 } else {
56 io_rate_update_cb = io_rate_update_cb_default;
57 }
58}
59
60uint64_t io_rate_update(uint64_t io_rate_flags, uint64_t read_ops_delta, uint64_t write_ops_delta, uint64_t read_bytes_delta, uint64_t write_bytes_delta) {
61 return io_rate_update_cb(io_rate_flags, read_ops_delta, write_ops_delta, read_bytes_delta, write_bytes_delta);
62}
63
64static uint64_t gpu_set_fceiling_cb_default(__unused uint32_t gfr, __unused uint64_t gfp) {
65 return 0ULL;
66}
67
68gpu_set_fceiling_t gpu_set_fceiling_cb = gpu_set_fceiling_cb_default;
69
70void gpu_fceiling_cb_register(gpu_set_fceiling_t gnewcb) {
71 if (gnewcb != NULL) {
72 gpu_set_fceiling_cb = gnewcb;
73 } else {
74 gpu_set_fceiling_cb = gpu_set_fceiling_cb_default;
75 }
76}
77
78void gpu_submission_telemetry(
79 __unused uint64_t gpu_ncmds,
80 __unused uint64_t gpu_noutstanding_avg,
81 __unused uint64_t gpu_busy_ns_total,
82 __unused uint64_t gpu_cycles,
83 __unused uint64_t gpu_telemetry_valid_flags,
84 __unused uint64_t gpu_telemetry_misc) {
85
86}
87