diff options
| -rw-r--r-- | src/mainboard/google/brya/acpi/gps.asl | 94 | ||||
| -rw-r--r-- | src/mainboard/google/brya/acpi/gpu_defines.h | 2 | ||||
| -rw-r--r-- | src/mainboard/google/brya/acpi/gpu_top.asl | 8 |
3 files changed, 104 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/acpi/gps.asl b/src/mainboard/google/brya/acpi/gps.asl new file mode 100644 index 0000000000..2e07a678cb --- /dev/null +++ b/src/mainboard/google/brya/acpi/gps.asl @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#define GPS_FUNC_SUPPORT 0 +#define GPS_FUNC_GETCALLBACKS 0x13 +#define GPS_FUNC_PSHARESTATUS 0x20 +#define GPS_FUNC_PSHAREPARAMS 0x2a + +#define QUERY_GET_STATUS 0 +#define QUERY_GET_SUPPORTED_FIELDS 1 +#define QUERY_GET_CURRENT_LIMITS 2 + +/* GPS return Package */ +Name (GPSP, Buffer (0x28) {0x0}) +CreateDWordField (GPSP, 0, RETN) +CreateDWordField (GPSP, 4, VRV1) +CreateDWordField (GPSP, 8, TGPU) + +/* GETCALLBACKS return value + [0]: Callback for post-mode set + [1]: Callback for pre-mode set + [2]: Callback for post power state transition */ +Name (GPSR, Buffer (4) { 0x4, 0x0, 0x0, 0x0 }) + +Method (GPS, 2, Serialized) +{ + Switch (ToInteger (Arg0)) + { + Case (GPS_FUNC_SUPPORT) + { + Return (ITOB( + (1 << GPS_FUNC_SUPPORT) | + (1 << GPS_FUNC_GETCALLBACKS) | + (1 << GPS_FUNC_PSHARESTATUS) | + (1 << GPS_FUNC_PSHAREPARAMS))) + } + Case (GPS_FUNC_GETCALLBACKS) + { + CreateDWordField (Arg1, 0, QURY) + + /* Driver querying for which callbacks the ACPI code + wants callbacks for. */ + If (QURY == 0) + { + Return (GPSR) + } + + If (QURY & 0x4) + { + Printf("GPS: Kernel driver callback post power state transition") + Return (GPSR) + } + } + Case (GPS_FUNC_PSHARESTATUS) + { + Return (ITOB( + (0 << 0) | /* GPS_FUNC_PSHAREPARAMS should not be called + again after initialization, i.e., its return + value is not dynamically updated. */ + (1 << 0) | /* System uses both a GPIO and ACPI notification + codes to set multiple GPU power limits. */ + (0 << 21))) /* EDPpeak limit is default */ + } + Case (GPS_FUNC_PSHAREPARAMS) + { + CreateField (Arg1, 0, 4, QUTY) /* Query type */ + + /* Version of return value */ + VRV1 = 0x10000 + Switch (ToInteger (QUTY)) + { + Case (QUERY_GET_STATUS) + { + Return (GPSP) + } + Case (QUERY_GET_SUPPORTED_FIELDS) + { + /* Only GPU temperature is supported */ + RETN = 0x100 | ToInteger (QUTY) + Return (GPSP) + } + Case (QUERY_GET_CURRENT_LIMITS) + { + /* Request a limit of '0' for the GPU temperature, + meaning there is no limit. */ + RETN = 0x102 + TGPU = 0 + Return (GPSP) + } + } + } + } + + Return (NV_ERROR_UNSUPPORTED) +} diff --git a/src/mainboard/google/brya/acpi/gpu_defines.h b/src/mainboard/google/brya/acpi/gpu_defines.h index ec79f81b7d..ec17a1c452 100644 --- a/src/mainboard/google/brya/acpi/gpu_defines.h +++ b/src/mainboard/google/brya/acpi/gpu_defines.h @@ -39,8 +39,10 @@ #define UUID_NVJT "cbeca351-067b-4924-9cbd-b46b00b86f34" #define UUID_NBCI "d4a50b75-65c7-46f7-bfb7-41514cea0244" #define UUID_NVPCF "36b49710-2483-11e7-9598-0800200c9a66" +#define UUID_GPS "a3132d01-8cda-49ba-a52e-bc9d46df6b81" #define REVISION_MIN_NVOP 0x100 #define REVISION_MIN_NVJT 0x100 #define REVISION_MIN_NBCI 0x102 #define REVISION_MIN_NVPCF 0x200 +#define REVISION_MIN_GPS 0x200 diff --git a/src/mainboard/google/brya/acpi/gpu_top.asl b/src/mainboard/google/brya/acpi/gpu_top.asl index 6b492231e3..f3b348aba8 100644 --- a/src/mainboard/google/brya/acpi/gpu_top.asl +++ b/src/mainboard/google/brya/acpi/gpu_top.asl @@ -24,6 +24,7 @@ Scope (\_SB.PCI0.PEG0) #include "nvjt.asl" #include "nbci.asl" #include "nvpcf.asl" + #include "gps.asl" Method (_DSM, 4, Serialized) { @@ -55,6 +56,13 @@ Scope (\_SB.PCI0.PEG0) Return (NPCF (Arg2, Arg3)) } } + ElseIf (Arg0 == ToUUID (UUID_GPS)) + { + If (ToInteger (Arg1) != REVISION_MIN_GPS) + { + Return (GPS (Arg2, Arg3)) + } + } Return (NV_ERROR_UNSUPPORTED) } |