1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
From 6e814b76206fbfc7729500b09bd0d06b64d9c525 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 2 Jun 2024 14:44:31 +1200
Subject: [PATCH 23/29] platform/x86: asus-armoury: add apu-mem control support
Implement the APU memory size control under the asus-armoury module using
the fw_attributes class.
This allows the APU allocated memory size to be adjusted depending on
the users priority. A reboot is required after change.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/platform/x86/asus-armoury.c | 114 +++++++++++++++++++++
include/linux/platform_data/x86/asus-wmi.h | 2 +
2 files changed, 116 insertions(+)
diff --git a/drivers/platform/x86/asus-armoury.c b/drivers/platform/x86/asus-armoury.c
index 716bf96b6b58..298f7b203d7c 100644
--- a/drivers/platform/x86/asus-armoury.c
+++ b/drivers/platform/x86/asus-armoury.c
@@ -396,6 +396,119 @@ static ssize_t egpu_enable_current_value_store(struct kobject *kobj, struct kobj
WMI_SHOW_INT(egpu_enable_current_value, "%d\n", ASUS_WMI_DEVID_EGPU);
ATTR_GROUP_BOOL_CUSTOM(egpu_enable, "egpu_enable", "Enable the eGPU (also disables dGPU)");
+/* Device memory available to APU */
+
+static ssize_t apu_mem_current_value_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ int err;
+ u32 mem;
+
+ err = asus_wmi_get_devstate_dsts(ASUS_WMI_DEVID_APU_MEM, &mem);
+ if (err)
+ return err;
+
+ switch (mem) {
+ case 0x100:
+ mem = 0;
+ break;
+ case 0x102:
+ mem = 1;
+ break;
+ case 0x103:
+ mem = 2;
+ break;
+ case 0x104:
+ mem = 3;
+ break;
+ case 0x105:
+ mem = 4;
+ break;
+ case 0x106:
+ /* This is out of order and looks wrong but is correct */
+ mem = 8;
+ break;
+ case 0x107:
+ mem = 5;
+ break;
+ case 0x108:
+ mem = 6;
+ break;
+ case 0x109:
+ mem = 7;
+ break;
+ default:
+ mem = 4;
+ break;
+ }
+
+ return sysfs_emit(buf, "%u\n", mem);
+}
+
+static ssize_t apu_mem_current_value_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ int result, err;
+ u32 requested, mem;
+
+ result = kstrtou32(buf, 10, &requested);
+ if (result)
+ return result;
+
+ switch (requested) {
+ case 0:
+ mem = 0x000;
+ break;
+ case 1:
+ mem = 0x102;
+ break;
+ case 2:
+ mem = 0x103;
+ break;
+ case 3:
+ mem = 0x104;
+ break;
+ case 4:
+ mem = 0x105;
+ break;
+ case 5:
+ mem = 0x107;
+ break;
+ case 6:
+ mem = 0x108;
+ break;
+ case 7:
+ mem = 0x109;
+ break;
+ case 8:
+ /* This is out of order and looks wrong but is correct */
+ mem = 0x106;
+ break;
+ default:
+ return -EIO;
+ }
+
+ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_APU_MEM, mem, &result);
+ if (err) {
+ pr_warn("Failed to set apu_mem: %d\n", err);
+ return err;
+ }
+
+ pr_info("APU memory changed to %uGB, reboot required\n", requested);
+ sysfs_notify(kobj, NULL, attr->attr.name);
+
+ asus_set_reboot_and_signal_event();
+
+ return count;
+}
+
+static ssize_t apu_mem_possible_values_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ return sysfs_emit(buf, "0;1;2;3;4;5;6;7;8\n");
+}
+ATTR_GROUP_ENUM_CUSTOM(apu_mem, "apu_mem", "Set available system RAM (in GB) for the APU to use");
+
/* Simple attribute creation */
ATTR_GROUP_ENUM_INT_RO(charge_mode, "charge_mode", ASUS_WMI_DEVID_CHARGE_MODE, "0;1;2",
"Show the current mode of charging");
@@ -416,6 +529,7 @@ static const struct asus_attr_group armoury_attr_groups[] = {
{ &egpu_connected_attr_group, ASUS_WMI_DEVID_EGPU_CONNECTED },
{ &egpu_enable_attr_group, ASUS_WMI_DEVID_EGPU },
{ &dgpu_disable_attr_group, ASUS_WMI_DEVID_DGPU },
+ { &apu_mem_attr_group, ASUS_WMI_DEVID_APU_MEM },
{ &charge_mode_attr_group, ASUS_WMI_DEVID_CHARGE_MODE },
{ &boot_sound_attr_group, ASUS_WMI_DEVID_BOOT_SOUND },
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 28d9ec1326ab..ba397d7d0825 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -275,6 +275,8 @@ struct asus_wmi {
/* dgpu on/off */
#define ASUS_WMI_DEVID_DGPU 0x00090020
+#define ASUS_WMI_DEVID_APU_MEM 0x000600C1
+
/* gpu mux switch, 0 = dGPU, 1 = Optimus */
#define ASUS_WMI_DEVID_GPU_MUX 0x00090016
#define ASUS_WMI_DEVID_GPU_MUX_VIVO 0x00090026
--
2.48.1
|