1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * AMD SoC Power Management Controller Driver Quirks
4  *
5  * Copyright (c) 2023, Advanced Micro Devices, Inc.
6  * All Rights Reserved.
7  *
8  * Author: Mario Limonciello <mario.limonciello@amd.com>
9  */
10 
11 #include <linux/dmi.h>
12 #include <linux/io.h>
13 #include <linux/ioport.h>
14 
15 #include "pmc.h"
16 
17 struct quirk_entry {
18 	u32 s2idle_bug_mmio;
19 	bool spurious_8042;
20 };
21 
22 static struct quirk_entry quirk_s2idle_bug = {
23 	.s2idle_bug_mmio = 0xfed80380,
24 };
25 
26 static struct quirk_entry quirk_spurious_8042 = {
27 	.spurious_8042 = true,
28 };
29 
30 static const struct dmi_system_id fwbug_list[] = {
31 	{
32 		.ident = "L14 Gen2 AMD",
33 		.driver_data = &quirk_s2idle_bug,
34 		.matches = {
35 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
36 			DMI_MATCH(DMI_PRODUCT_NAME, "20X5"),
37 		}
38 	},
39 	{
40 		.ident = "T14s Gen2 AMD",
41 		.driver_data = &quirk_s2idle_bug,
42 		.matches = {
43 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
44 			DMI_MATCH(DMI_PRODUCT_NAME, "20XF"),
45 		}
46 	},
47 	{
48 		.ident = "X13 Gen2 AMD",
49 		.driver_data = &quirk_s2idle_bug,
50 		.matches = {
51 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
52 			DMI_MATCH(DMI_PRODUCT_NAME, "20XH"),
53 		}
54 	},
55 	{
56 		.ident = "T14 Gen2 AMD",
57 		.driver_data = &quirk_s2idle_bug,
58 		.matches = {
59 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
60 			DMI_MATCH(DMI_PRODUCT_NAME, "20XK"),
61 		}
62 	},
63 	{
64 		.ident = "T14 Gen1 AMD",
65 		.driver_data = &quirk_s2idle_bug,
66 		.matches = {
67 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
68 			DMI_MATCH(DMI_PRODUCT_NAME, "20UD"),
69 		}
70 	},
71 	{
72 		.ident = "T14 Gen1 AMD",
73 		.driver_data = &quirk_s2idle_bug,
74 		.matches = {
75 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
76 			DMI_MATCH(DMI_PRODUCT_NAME, "20UE"),
77 		}
78 	},
79 	{
80 		.ident = "T14s Gen1 AMD",
81 		.driver_data = &quirk_s2idle_bug,
82 		.matches = {
83 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
84 			DMI_MATCH(DMI_PRODUCT_NAME, "20UH"),
85 		}
86 	},
87 	{
88 		.ident = "T14s Gen1 AMD",
89 		.driver_data = &quirk_s2idle_bug,
90 		.matches = {
91 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
92 			DMI_MATCH(DMI_PRODUCT_NAME, "20UJ"),
93 		}
94 	},
95 	{
96 		.ident = "P14s Gen1 AMD",
97 		.driver_data = &quirk_s2idle_bug,
98 		.matches = {
99 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
100 			DMI_MATCH(DMI_PRODUCT_NAME, "20Y1"),
101 		}
102 	},
103 	{
104 		.ident = "P14s Gen2 AMD",
105 		.driver_data = &quirk_s2idle_bug,
106 		.matches = {
107 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
108 			DMI_MATCH(DMI_PRODUCT_NAME, "21A0"),
109 		}
110 	},
111 	{
112 		.ident = "P14s Gen2 AMD",
113 		.driver_data = &quirk_s2idle_bug,
114 		.matches = {
115 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
116 			DMI_MATCH(DMI_PRODUCT_NAME, "21A1"),
117 		}
118 	},
119 	/* https://bugzilla.kernel.org/show_bug.cgi?id=218024 */
120 	{
121 		.ident = "V14 G4 AMN",
122 		.driver_data = &quirk_s2idle_bug,
123 		.matches = {
124 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
125 			DMI_MATCH(DMI_PRODUCT_NAME, "82YT"),
126 		}
127 	},
128 	{
129 		.ident = "V14 G4 AMN",
130 		.driver_data = &quirk_s2idle_bug,
131 		.matches = {
132 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
133 			DMI_MATCH(DMI_PRODUCT_NAME, "83GE"),
134 		}
135 	},
136 	{
137 		.ident = "V15 G4 AMN",
138 		.driver_data = &quirk_s2idle_bug,
139 		.matches = {
140 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
141 			DMI_MATCH(DMI_PRODUCT_NAME, "82YU"),
142 		}
143 	},
144 	{
145 		.ident = "V15 G4 AMN",
146 		.driver_data = &quirk_s2idle_bug,
147 		.matches = {
148 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
149 			DMI_MATCH(DMI_PRODUCT_NAME, "83CQ"),
150 		}
151 	},
152 	{
153 		.ident = "IdeaPad 1 14AMN7",
154 		.driver_data = &quirk_s2idle_bug,
155 		.matches = {
156 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
157 			DMI_MATCH(DMI_PRODUCT_NAME, "82VF"),
158 		}
159 	},
160 	{
161 		.ident = "IdeaPad 1 15AMN7",
162 		.driver_data = &quirk_s2idle_bug,
163 		.matches = {
164 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
165 			DMI_MATCH(DMI_PRODUCT_NAME, "82VG"),
166 		}
167 	},
168 	{
169 		.ident = "IdeaPad 1 15AMN7",
170 		.driver_data = &quirk_s2idle_bug,
171 		.matches = {
172 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
173 			DMI_MATCH(DMI_PRODUCT_NAME, "82X5"),
174 		}
175 	},
176 	{
177 		.ident = "IdeaPad Slim 3 14AMN8",
178 		.driver_data = &quirk_s2idle_bug,
179 		.matches = {
180 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
181 			DMI_MATCH(DMI_PRODUCT_NAME, "82XN"),
182 		}
183 	},
184 	{
185 		.ident = "IdeaPad Slim 3 15AMN8",
186 		.driver_data = &quirk_s2idle_bug,
187 		.matches = {
188 			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
189 			DMI_MATCH(DMI_PRODUCT_NAME, "82XQ"),
190 		}
191 	},
192 	/* https://gitlab.freedesktop.org/drm/amd/-/issues/2684 */
193 	{
194 		.ident = "HP Laptop 15s-eq2xxx",
195 		.driver_data = &quirk_s2idle_bug,
196 		.matches = {
197 			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
198 			DMI_MATCH(DMI_PRODUCT_NAME, "HP Laptop 15s-eq2xxx"),
199 		}
200 	},
201 	/* https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128 */
202 	{
203 		.ident = "Framework Laptop 13 (Phoenix)",
204 		.driver_data = &quirk_spurious_8042,
205 		.matches = {
206 			DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
207 			DMI_MATCH(DMI_PRODUCT_NAME, "Laptop 13 (AMD Ryzen 7040Series)"),
208 			DMI_MATCH(DMI_BIOS_VERSION, "03.03"),
209 		}
210 	},
211 	{
212 		.ident = "Framework Laptop 13 (Phoenix)",
213 		.driver_data = &quirk_spurious_8042,
214 		.matches = {
215 			DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
216 			DMI_MATCH(DMI_PRODUCT_NAME, "Laptop 13 (AMD Ryzen 7040Series)"),
217 			DMI_MATCH(DMI_BIOS_VERSION, "03.05"),
218 		}
219 	},
220 	{}
221 };
222 
223 /*
224  * Laptops that run a SMI handler during the D3->D0 transition that occurs
225  * specifically when exiting suspend to idle which can cause
226  * large delays during resume when the IOMMU translation layer is enabled (the default
227  * behavior) for NVME devices:
228  *
229  * To avoid this firmware problem, skip the SMI handler on these machines before the
230  * D0 transition occurs.
231  */
amd_pmc_skip_nvme_smi_handler(u32 s2idle_bug_mmio)232 static void amd_pmc_skip_nvme_smi_handler(u32 s2idle_bug_mmio)
233 {
234 	void __iomem *addr;
235 	u8 val;
236 
237 	if (!request_mem_region_muxed(s2idle_bug_mmio, 1, "amd_pmc_pm80"))
238 		return;
239 
240 	addr = ioremap(s2idle_bug_mmio, 1);
241 	if (!addr)
242 		goto cleanup_resource;
243 
244 	val = ioread8(addr);
245 	iowrite8(val & ~BIT(0), addr);
246 
247 	iounmap(addr);
248 cleanup_resource:
249 	release_mem_region(s2idle_bug_mmio, 1);
250 }
251 
amd_pmc_process_restore_quirks(struct amd_pmc_dev * dev)252 void amd_pmc_process_restore_quirks(struct amd_pmc_dev *dev)
253 {
254 	if (dev->quirks && dev->quirks->s2idle_bug_mmio)
255 		amd_pmc_skip_nvme_smi_handler(dev->quirks->s2idle_bug_mmio);
256 }
257 
amd_pmc_quirks_init(struct amd_pmc_dev * dev)258 void amd_pmc_quirks_init(struct amd_pmc_dev *dev)
259 {
260 	const struct dmi_system_id *dmi_id;
261 
262 	if (dev->cpu_id == AMD_CPU_ID_CZN)
263 		dev->disable_8042_wakeup = true;
264 
265 	dmi_id = dmi_first_match(fwbug_list);
266 	if (!dmi_id)
267 		return;
268 	dev->quirks = dmi_id->driver_data;
269 	if (dev->quirks->s2idle_bug_mmio)
270 		pr_info("Using s2idle quirk to avoid %s platform firmware bug\n",
271 			dmi_id->ident);
272 	if (dev->quirks->spurious_8042)
273 		dev->disable_8042_wakeup = true;
274 }
275