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1/*
2 * Copyright 2012 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#ifndef RADEON_ACPI_H
25#define RADEON_ACPI_H
26
27struct radeon_device;
28struct acpi_bus_event;
29
30int radeon_atif_handler(struct radeon_device *rdev,
31 struct acpi_bus_event *event);
32
33/* AMD hw uses four ACPI control methods:
34 * 1. ATIF
35 * ARG0: (ACPI_INTEGER) function code
36 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
37 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
38 * ATIF provides an entry point for the gfx driver to interact with the sbios.
39 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
40 * notification. Which notification is used as indicated by the ATIF Control
41 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
42 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
43 * to identify pending System BIOS requests and associated parameters. For
44 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
45 * will perform display device detection and invoke ATIF Control Method
46 * SELECT_ACTIVE_DISPLAYS.
47 *
48 * 2. ATPX
49 * ARG0: (ACPI_INTEGER) function code
50 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
51 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
52 * ATPX methods are used on PowerXpress systems to handle mux switching and
53 * discrete GPU power control.
54 *
55 * 3. ATRM
56 * ARG0: (ACPI_INTEGER) offset of vbios rom data
57 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
58 * OUTPUT: (ACPI_BUFFER) output buffer
59 * ATRM provides an interfacess to access the discrete GPU vbios image on
60 * PowerXpress systems with multiple GPUs.
61 *
62 * 4. ATCS
63 * ARG0: (ACPI_INTEGER) function code
64 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
65 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
66 * ATCS provides an interface to AMD chipset specific functionality.
67 *
68 */
69/* ATIF */
70#define ATIF_FUNCTION_VERIFY_INTERFACE 0x0
71/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
72 * ARG1: none
73 * OUTPUT:
74 * WORD - structure size in bytes (includes size field)
75 * WORD - version
76 * DWORD - supported notifications mask
77 * DWORD - supported functions bit vector
78 */
79/* Notifications mask */
80# define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0)
81# define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1)
82# define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2)
83# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3)
84# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4)
85# define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5)
86# define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6)
87# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7)
88# define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8)
89/* supported functions vector */
90# define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0)
91# define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1)
92# define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2)
93# define ATIF_GET_LID_STATE_SUPPORTED (1 << 3)
94# define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4)
95# define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5)
96# define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6)
97# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
98# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
99# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
100#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
101/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
102 * ARG1: none
103 * OUTPUT:
104 * WORD - structure size in bytes (includes size field)
105 * DWORD - valid flags mask
106 * DWORD - flags
107 *
108 * OR
109 *
110 * WORD - structure size in bytes (includes size field)
111 * DWORD - valid flags mask
112 * DWORD - flags
113 * BYTE - notify command code
114 *
115 * flags
116 * bits 1:0:
117 * 0 - Notify(VGA, 0x81) is not used for notification
118 * 1 - Notify(VGA, 0x81) is used for notification
119 * 2 - Notify(VGA, n) is used for notification where
120 * n (0xd0-0xd9) is specified in notify command code.
121 * bit 2:
122 * 1 - lid changes not reported though int10
123 */
124#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
125/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
126 * ARG1: none
127 * OUTPUT:
128 * WORD - structure size in bytes (includes size field)
129 * DWORD - pending sbios requests
130 * BYTE - panel expansion mode
131 * BYTE - thermal state: target gfx controller
132 * BYTE - thermal state: state id (0: exit state, non-0: state)
133 * BYTE - forced power state: target gfx controller
134 * BYTE - forced power state: state id
135 * BYTE - system power source
136 * BYTE - panel backlight level (0-255)
137 */
138/* pending sbios requests */
139# define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
140# define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
141# define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
142# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
143# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
144# define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
145# define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
146# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
147# define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
148/* panel expansion mode */
149# define ATIF_PANEL_EXPANSION_DISABLE 0
150# define ATIF_PANEL_EXPANSION_FULL 1
151# define ATIF_PANEL_EXPANSION_ASPECT 2
152/* target gfx controller */
153# define ATIF_TARGET_GFX_SINGLE 0
154# define ATIF_TARGET_GFX_PX_IGPU 1
155# define ATIF_TARGET_GFX_PX_DGPU 2
156/* system power source */
157# define ATIF_POWER_SOURCE_AC 1
158# define ATIF_POWER_SOURCE_DC 2
159# define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
160# define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
161#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
162/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
163 * ARG1:
164 * WORD - structure size in bytes (includes size field)
165 * WORD - selected displays
166 * WORD - connected displays
167 * OUTPUT:
168 * WORD - structure size in bytes (includes size field)
169 * WORD - selected displays
170 */
171# define ATIF_LCD1 (1 << 0)
172# define ATIF_CRT1 (1 << 1)
173# define ATIF_TV (1 << 2)
174# define ATIF_DFP1 (1 << 3)
175# define ATIF_CRT2 (1 << 4)
176# define ATIF_LCD2 (1 << 5)
177# define ATIF_DFP2 (1 << 7)
178# define ATIF_CV (1 << 8)
179# define ATIF_DFP3 (1 << 9)
180# define ATIF_DFP4 (1 << 10)
181# define ATIF_DFP5 (1 << 11)
182# define ATIF_DFP6 (1 << 12)
183#define ATIF_FUNCTION_GET_LID_STATE 0x4
184/* ARG0: ATIF_FUNCTION_GET_LID_STATE
185 * ARG1: none
186 * OUTPUT:
187 * WORD - structure size in bytes (includes size field)
188 * BYTE - lid state (0: open, 1: closed)
189 *
190 * GET_LID_STATE only works at boot and resume, for general lid
191 * status, use the kernel provided status
192 */
193#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
194/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
195 * ARG1: none
196 * OUTPUT:
197 * WORD - structure size in bytes (includes size field)
198 * BYTE - 0
199 * BYTE - TV standard
200 */
201# define ATIF_TV_STD_NTSC 0
202# define ATIF_TV_STD_PAL 1
203# define ATIF_TV_STD_PALM 2
204# define ATIF_TV_STD_PAL60 3
205# define ATIF_TV_STD_NTSCJ 4
206# define ATIF_TV_STD_PALCN 5
207# define ATIF_TV_STD_PALN 6
208# define ATIF_TV_STD_SCART_RGB 9
209#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
210/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
211 * ARG1:
212 * WORD - structure size in bytes (includes size field)
213 * BYTE - 0
214 * BYTE - TV standard
215 * OUTPUT: none
216 */
217#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
218/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
219 * ARG1: none
220 * OUTPUT:
221 * WORD - structure size in bytes (includes size field)
222 * BYTE - panel expansion mode
223 */
224#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
225/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
226 * ARG1:
227 * WORD - structure size in bytes (includes size field)
228 * BYTE - panel expansion mode
229 * OUTPUT: none
230 */
231#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
232/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
233 * ARG1:
234 * WORD - structure size in bytes (includes size field)
235 * WORD - gfx controller id
236 * BYTE - current temperature (degress Celsius)
237 * OUTPUT: none
238 */
239#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
240/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
241 * ARG1: none
242 * OUTPUT:
243 * WORD - number of gfx devices
244 * WORD - device structure size in bytes (excludes device size field)
245 * DWORD - flags \
246 * WORD - bus number } repeated structure
247 * WORD - device number /
248 */
249/* flags */
250# define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
251# define ATIF_XGP_PORT (1 << 1)
252# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
253# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
254
255/* ATPX */
256#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
257/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
258 * ARG1: none
259 * OUTPUT:
260 * WORD - structure size in bytes (includes size field)
261 * WORD - version
262 * DWORD - supported functions bit vector
263 */
264/* supported functions vector */
265# define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
266# define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
267# define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
268# define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
269# define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
270# define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
271# define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
272# define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
273#define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
274/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
275 * ARG1: none
276 * OUTPUT:
277 * WORD - structure size in bytes (includes size field)
278 * DWORD - valid flags mask
279 * DWORD - flags
280 */
281/* flags */
282# define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
283# define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
284# define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
285# define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
286# define ATPX_TV_SIGNAL_MUXED (1 << 4)
287# define ATPX_DFP_SIGNAL_MUXED (1 << 5)
288# define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
289# define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
290# define ATPX_ACF_NOT_SUPPORTED (1 << 8)
291# define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
292# define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
293# define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
294# define ATPX_DGPU_CAN_DRIVE_DISPLAYS (1 << 12)
295# define ATPX_MS_HYBRID_GFX_SUPPORTED (1 << 14)
296#define ATPX_FUNCTION_POWER_CONTROL 0x2
297/* ARG0: ATPX_FUNCTION_POWER_CONTROL
298 * ARG1:
299 * WORD - structure size in bytes (includes size field)
300 * BYTE - dGPU power state (0: power off, 1: power on)
301 * OUTPUT: none
302 */
303#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
304/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
305 * ARG1:
306 * WORD - structure size in bytes (includes size field)
307 * WORD - display mux control (0: iGPU, 1: dGPU)
308 * OUTPUT: none
309 */
310# define ATPX_INTEGRATED_GPU 0
311# define ATPX_DISCRETE_GPU 1
312#define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
313/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
314 * ARG1:
315 * WORD - structure size in bytes (includes size field)
316 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
317 * OUTPUT: none
318 */
319#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
320/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
321 * ARG1:
322 * WORD - structure size in bytes (includes size field)
323 * WORD - target gpu (0: iGPU, 1: dGPU)
324 * OUTPUT: none
325 */
326#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
327/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
328 * ARG1:
329 * WORD - structure size in bytes (includes size field)
330 * WORD - target gpu (0: iGPU, 1: dGPU)
331 * OUTPUT: none
332 */
333#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8
334/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
335 * ARG1: none
336 * OUTPUT:
337 * WORD - number of display connectors
338 * WORD - connector structure size in bytes (excludes connector size field)
339 * BYTE - flags \
340 * BYTE - ATIF display vector bit position } repeated
341 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
342 * WORD - connector ACPI id /
343 */
344/* flags */
345# define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
346# define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
347# define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
348#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
349/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
350 * ARG1: none
351 * OUTPUT:
352 * WORD - number of HPD/DDC ports
353 * WORD - port structure size in bytes (excludes port size field)
354 * BYTE - ATIF display vector bit position \
355 * BYTE - hpd id } reapeated structure
356 * BYTE - ddc id /
357 *
358 * available on A+A systems only
359 */
360/* hpd id */
361# define ATPX_HPD_NONE 0
362# define ATPX_HPD1 1
363# define ATPX_HPD2 2
364# define ATPX_HPD3 3
365# define ATPX_HPD4 4
366# define ATPX_HPD5 5
367# define ATPX_HPD6 6
368/* ddc id */
369# define ATPX_DDC_NONE 0
370# define ATPX_DDC1 1
371# define ATPX_DDC2 2
372# define ATPX_DDC3 3
373# define ATPX_DDC4 4
374# define ATPX_DDC5 5
375# define ATPX_DDC6 6
376# define ATPX_DDC7 7
377# define ATPX_DDC8 8
378
379/* ATCS */
380#define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
381/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
382 * ARG1: none
383 * OUTPUT:
384 * WORD - structure size in bytes (includes size field)
385 * WORD - version
386 * DWORD - supported functions bit vector
387 */
388/* supported functions vector */
389# define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
390# define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
391# define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
392# define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
393#define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
394/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
395 * ARG1: none
396 * OUTPUT:
397 * WORD - structure size in bytes (includes size field)
398 * DWORD - valid flags mask
399 * DWORD - flags (0: undocked, 1: docked)
400 */
401/* flags */
402# define ATCS_DOCKED (1 << 0)
403#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
404/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
405 * ARG1:
406 * WORD - structure size in bytes (includes size field)
407 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
408 * WORD - valid flags mask
409 * WORD - flags
410 * BYTE - request type
411 * BYTE - performance request
412 * OUTPUT:
413 * WORD - structure size in bytes (includes size field)
414 * BYTE - return value
415 */
416/* flags */
417# define ATCS_ADVERTISE_CAPS (1 << 0)
418# define ATCS_WAIT_FOR_COMPLETION (1 << 1)
419/* request type */
420# define ATCS_PCIE_LINK_SPEED 1
421/* performance request */
422# define ATCS_REMOVE 0
423# define ATCS_FORCE_LOW_POWER 1
424# define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
425# define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
426# define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
427/* return value */
428# define ATCS_REQUEST_REFUSED 1
429# define ATCS_REQUEST_COMPLETE 2
430# define ATCS_REQUEST_IN_PROGRESS 3
431#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
432/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
433 * ARG1: none
434 * OUTPUT: none
435 */
436#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
437/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
438 * ARG1:
439 * WORD - structure size in bytes (includes size field)
440 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
441 * BYTE - number of active lanes
442 * OUTPUT:
443 * WORD - structure size in bytes (includes size field)
444 * BYTE - number of active lanes
445 */
446
447#endif