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 - items:
20 - enum:
21 - apple,agx-g13c
22 - apple,agx-g13d
23 - const: apple,agx-g13s
24
25 reg:
26 items:
27 - description: GPU coprocessor control registers
28 - description: GPU block MMIO registers
29
30 reg-names:
31 items:
32 - const: asc
33 - const: sgx
34
35 power-domains:
36 maxItems: 1
37
38 mboxes:
39 maxItems: 1
40
41 memory-region:
42 items:
43 - description: Region containing GPU MMU TTBs
44 - description: Region containing GPU MMU page tables
45 - description:
46 Region containing a shared handoff structure for VM
47 management coordination
48 - description: Calibration blob. Mostly power-related configuration
49 - description: Calibration blob. Mostly GPU-related configuration
50 - description: Shared global variables with GPU firmware
51
52 memory-region-names:
53 items:
54 - const: ttbs
55 - const: pagetables
56 - const: handoff
57 - const: hw-cal-a
58 - const: hw-cal-b
59 - const: globals
60
61 apple,firmware-abi:
62 $ref: /schemas/types.yaml#/definitions/uint32-array
63 minItems: 3
64 description:
65 macOS version the current firmware is paired with, used to pick
66 the version of firmware ABI to be used.
67 Bootloader will overwrite this
68
69required:
70 - compatible
71 - reg
72 - mboxes
73 - memory-region
74 - apple,firmware-abi
75
76additionalProperties: false
77
78examples:
79 - |
80 gpu@6400000 {
81 compatible = "apple,agx-g13g";
82 reg = <0x6400000 0x40000>,
83 <0x4000000 0x1000000>;
84 reg-names = "asc", "sgx";
85 mboxes = <&agx_mbox>;
86 power-domains = <&ps_gfx>;
87 memory-region = <&uat_ttbs>, <&uat_pagetables>, <&uat_handoff>,
88 <&gpu_hw_cal_a>, <&gpu_hw_cal_b>, <&gpu_globals>;
89 memory-region-names = "ttbs", "pagetables", "handoff",
90 "hw-cal-a", "hw-cal-b", "globals";
91
92 apple,firmware-abi = <0 0 0>;
93 };
94...