| Shelley Chen | 9b230ae | 2023-09-15 16:01:31 -0700 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
| 3 | #define GPS_FUNC_SUPPORT 0 |
| 4 | #define GPS_FUNC_GETCALLBACKS 0x13 |
| 5 | #define GPS_FUNC_PSHARESTATUS 0x20 |
| 6 | #define GPS_FUNC_PSHAREPARAMS 0x2a |
| 7 | #define GPS_FUNC_REQUESTDXSTATE 0x12 |
| 8 | |
| 9 | #define QUERY_GET_STATUS 0 |
| 10 | #define QUERY_GET_SUPPORTED_FIELDS 1 |
| 11 | #define QUERY_GET_CURRENT_LIMITS 2 |
| 12 | |
| 13 | #define EC_D_NOTIFY_MASK 0x7 |
| 14 | |
| 15 | /* GPS return Package */ |
| 16 | Name (GPSP, Buffer (0x28) {0x0}) |
| 17 | CreateDWordField (GPSP, 0, RETN) |
| 18 | CreateDWordField (GPSP, 4, VRV1) |
| 19 | CreateDWordField (GPSP, 8, TGPU) |
| 20 | |
| 21 | /* GETCALLBACKS return value |
| 22 | [0]: Callback for post-mode set |
| 23 | [1]: Callback for pre-mode set |
| 24 | [2]: Callback for post power state transition */ |
| 25 | Name (GPSR, Buffer (4) { 0x4, 0x0, 0x0, 0x0 }) |
| 26 | |
| 27 | Method (GPS, 2, Serialized) |
| 28 | { |
| 29 | Switch (ToInteger (Arg0)) |
| 30 | { |
| 31 | Case (GPS_FUNC_SUPPORT) |
| 32 | { |
| 33 | Return (LTOB( |
| 34 | (1 << GPS_FUNC_SUPPORT) | |
| 35 | (1 << GPS_FUNC_GETCALLBACKS) | |
| 36 | (1 << GPS_FUNC_PSHARESTATUS) | |
| 37 | (1 << GPS_FUNC_PSHAREPARAMS) | |
| 38 | (1 << GPS_FUNC_REQUESTDXSTATE))) |
| 39 | } |
| 40 | Case (GPS_FUNC_GETCALLBACKS) |
| 41 | { |
| 42 | CreateDWordField (Arg1, 0, QURY) |
| 43 | |
| 44 | /* Driver querying for which callbacks the ACPI code |
| 45 | wants callbacks for. */ |
| 46 | If (QURY == 0) |
| 47 | { |
| 48 | Return (GPSR) |
| 49 | } |
| 50 | |
| 51 | If (QURY & 0x4) |
| 52 | { |
| 53 | Printf("GPS: Kernel driver callback post power state transition") |
| 54 | Return (GPSR) |
| 55 | } |
| 56 | } |
| 57 | Case (GPS_FUNC_PSHARESTATUS) |
| 58 | { |
| 59 | Return (ITOB( |
| 60 | (0 << 0) | /* GPS_FUNC_PSHAREPARAMS should not be called |
| 61 | again after initialization, i.e., its return |
| 62 | value is not dynamically updated. */ |
| 63 | (1 << 0) | /* System uses both a GPIO and ACPI notification |
| 64 | codes to set multiple GPU power limits. */ |
| 65 | (0 << 21))) /* EDPpeak limit is default */ |
| 66 | } |
| 67 | Case (GPS_FUNC_PSHAREPARAMS) |
| 68 | { |
| 69 | CreateField (Arg1, 0, 4, QUTY) /* Query type */ |
| 70 | |
| 71 | /* Version of return value */ |
| 72 | VRV1 = 0x10000 |
| 73 | Switch (ToInteger (QUTY)) |
| 74 | { |
| 75 | Case (QUERY_GET_STATUS) |
| 76 | { |
| 77 | Return (GPSP) |
| 78 | } |
| 79 | Case (QUERY_GET_SUPPORTED_FIELDS) |
| 80 | { |
| 81 | /* Only GPU temperature is supported */ |
| 82 | RETN = 0x100 | ToInteger (QUTY) |
| 83 | Return (GPSP) |
| 84 | } |
| 85 | Case (QUERY_GET_CURRENT_LIMITS) |
| 86 | { |
| 87 | /* Request a limit of '0' for the GPU temperature, |
| 88 | meaning there is no limit. */ |
| 89 | RETN = 0x102 |
| 90 | TGPU = 0 |
| 91 | Return (GPSP) |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | Case (GPS_FUNC_REQUESTDXSTATE) |
| 96 | { |
| 97 | Local0 = ToInteger(\_SB.PCI0.LPCB.EC0.GPUD) & EC_D_NOTIFY_MASK |
| 98 | \_SB.PCI0.PEG0.PEGP.DNOT (Local0, 1) |
| 99 | Return (NV_ERROR_SUCCESS) |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | Return (NV_ERROR_UNSUPPORTED) |
| 104 | } |