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1 /*

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

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26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

27 */

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>

35 void

36 gpu_describe(__unused gpu_descriptor_t gdesc)

37 {

         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_ENERGY_PERF, 1), gdesc->gpu_id, gdesc->gpu_max_domains, 0, 0, 0);

39 }

41 uint64_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)

43 {

         KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_ENERGY_PERF, 2), scope, gpu_id, gpu_domain, gpu_accumulated_ns, gpu_tstamp_ns);

45 ml_gpu_stat_update(gpu_accumulated_ns);

46 return 0;

47 }

49 static 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)

51 {

         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);

53 return 0;

54 }

56 io_rate_update_callback_t io_rate_update_cb = io_rate_update_cb_default;

58 void

59 io_rate_update_register(io_rate_update_callback_t io_rate_update_cb_new)

60 {

61 if (io_rate_update_cb_new != NULL) {

62 io_rate_update_cb = io_rate_update_cb_new;

63 } else {

64 io_rate_update_cb = io_rate_update_cb_default;

65 }

66 }

68 uint64_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)

70 {

         return io_rate_update_cb(io_rate_flags, read_ops_delta, write_ops_delta, read_bytes_delta, write_bytes_delta);

72 }

74 static uint64_t

 gpu_set_fceiling_cb_default(__unused uint32_t gfr, __unused uint64_t gfp)

76 {

77 return 0ULL;

78 }

80 gpu_set_fceiling_t gpu_set_fceiling_cb = gpu_set_fceiling_cb_default;

82 void

83 gpu_fceiling_cb_register(gpu_set_fceiling_t gnewcb)

84 {

85 if (gnewcb != NULL) {

86 gpu_set_fceiling_cb = gnewcb;

87 } else {

88 gpu_set_fceiling_cb = gpu_set_fceiling_cb_default;

89 }

90 }

92 void

93 gpu_submission_telemetry(

94 __unused uint64_t gpu_ncmds,

95 __unused uint64_t gpu_noutstanding_avg,

96 __unused uint64_t gpu_busy_ns_total,

97 __unused uint64_t gpu_cycles,

98 __unused uint64_t gpu_telemetry_valid_flags,

99 __unused uint64_t gpu_telemetry_misc)

100 {

101 }