tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/gpu/apple,agx.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Apple SoC GPU
8
9maintainers:
10 - Sasha Finkelstein <fnkl.kernel@gmail.com>
11
12properties:
13 compatible:
14 oneOf:
15 - enum:
16 - apple,agx-g13g
17 - apple,agx-g13s
18 - apple,agx-g14g
19 - apple,agx-g14s
20 - items:
21 - enum:
22 - apple,agx-g13c
23 - apple,agx-g13d
24 - const: apple,agx-g13s
25 - items:
26 - enum:
27 - apple,agx-g14c
28 - apple,agx-g14d
29 - const: apple,agx-g14s
30
31 reg:
32 items:
33 - description: GPU coprocessor control registers
34 - description: GPU block MMIO registers
35
36 reg-names:
37 items:
38 - const: asc
39 - const: sgx
40
41 power-domains:
42 maxItems: 1
43
44 mboxes:
45 maxItems: 1
46
47 memory-region:
48 items:
49 - description: Region containing GPU MMU TTBs
50 - description: Region containing GPU MMU page tables
51 - description:
52 Region containing a shared handoff structure for VM
53 management coordination
54 - description: Calibration blob. Mostly power-related configuration
55 - description: Calibration blob. Mostly GPU-related configuration
56 - description: Shared global variables with GPU firmware
57
58 memory-region-names:
59 items:
60 - const: ttbs
61 - const: pagetables
62 - const: handoff
63 - const: hw-cal-a
64 - const: hw-cal-b
65 - const: globals
66
67 apple,firmware-abi:
68 $ref: /schemas/types.yaml#/definitions/uint32-array
69 minItems: 3
70 description:
71 macOS version the current firmware is paired with, used to pick
72 the version of firmware ABI to be used.
73 Bootloader will overwrite this
74
75required:
76 - compatible
77 - reg
78 - mboxes
79 - memory-region
80 - apple,firmware-abi
81
82additionalProperties: false
83
84examples:
85 - |
86 gpu@6400000 {
87 compatible = "apple,agx-g13g";
88 reg = <0x6400000 0x40000>,
89 <0x4000000 0x1000000>;
90 reg-names = "asc", "sgx";
91 mboxes = <&agx_mbox>;
92 power-domains = <&ps_gfx>;
93 memory-region = <&uat_ttbs>, <&uat_pagetables>, <&uat_handoff>,
94 <&gpu_hw_cal_a>, <&gpu_hw_cal_b>, <&gpu_globals>;
95 memory-region-names = "ttbs", "pagetables", "handoff",
96 "hw-cal-a", "hw-cal-b", "globals";
97
98 apple,firmware-abi = <0 0 0>;
99 };
100...