2 * Copyright 2012 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
27 #define ACPI_AC_CLASS "ac_adapter"
29 struct atif_verify_interface {
30 u16 size; /* structure size in bytes (includes size field) */
31 u16 version; /* version */
32 u32 notification_mask; /* supported notifications mask */
33 u32 function_bits; /* supported functions bit vector */
36 struct atif_system_params {
37 u16 size; /* structure size in bytes (includes size field) */
38 u32 valid_mask; /* valid flags mask */
39 u32 flags; /* flags */
40 u8 command_code; /* notify command code */
43 struct atif_sbios_requests {
44 u16 size; /* structure size in bytes (includes size field) */
45 u32 pending; /* pending sbios requests */
46 u8 panel_exp_mode; /* panel expansion mode */
47 u8 thermal_gfx; /* thermal state: target gfx controller */
48 u8 thermal_state; /* thermal state: state id (0: exit state, non-0: state) */
49 u8 forced_power_gfx; /* forced power state: target gfx controller */
50 u8 forced_power_state; /* forced power state: state id */
51 u8 system_power_src; /* system power source */
52 u8 backlight_level; /* panel backlight level (0-255) */
55 #define ATIF_NOTIFY_MASK 0x3
56 #define ATIF_NOTIFY_NONE 0
57 #define ATIF_NOTIFY_81 1
58 #define ATIF_NOTIFY_N 2
60 struct atcs_verify_interface {
61 u16 size; /* structure size in bytes (includes size field) */
62 u16 version; /* version */
63 u32 function_bits; /* supported functions bit vector */
66 #define ATCS_VALID_FLAGS_MASK 0x3
68 struct atcs_pref_req_input {
69 u16 size; /* structure size in bytes (includes size field) */
70 u16 client_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */
71 u16 valid_flags_mask; /* valid flags mask */
72 u16 flags; /* flags */
73 u8 req_type; /* request type */
74 u8 perf_req; /* performance request */
77 struct atcs_pref_req_output {
78 u16 size; /* structure size in bytes (includes size field) */
79 u8 ret_val; /* return value */
82 /* AMD hw uses four ACPI control methods:
84 * ARG0: (ACPI_INTEGER) function code
85 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
86 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
87 * ATIF provides an entry point for the gfx driver to interact with the sbios.
88 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
89 * notification. Which notification is used as indicated by the ATIF Control
90 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
91 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
92 * to identify pending System BIOS requests and associated parameters. For
93 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
94 * will perform display device detection and invoke ATIF Control Method
95 * SELECT_ACTIVE_DISPLAYS.
98 * ARG0: (ACPI_INTEGER) function code
99 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
100 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
101 * ATPX methods are used on PowerXpress systems to handle mux switching and
102 * discrete GPU power control.
105 * ARG0: (ACPI_INTEGER) offset of vbios rom data
106 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
107 * OUTPUT: (ACPI_BUFFER) output buffer
108 * ATRM provides an interfacess to access the discrete GPU vbios image on
109 * PowerXpress systems with multiple GPUs.
112 * ARG0: (ACPI_INTEGER) function code
113 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
114 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
115 * ATCS provides an interface to AMD chipset specific functionality.
119 #define ATIF_FUNCTION_VERIFY_INTERFACE 0x0
120 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
123 * WORD - structure size in bytes (includes size field)
125 * DWORD - supported notifications mask
126 * DWORD - supported functions bit vector
128 /* Notifications mask */
129 # define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0)
130 # define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1)
131 # define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2)
132 # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3)
133 # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4)
134 # define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5)
135 # define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6)
136 # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7)
137 # define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8)
138 /* supported functions vector */
139 # define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0)
140 # define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1)
141 # define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2)
142 # define ATIF_GET_LID_STATE_SUPPORTED (1 << 3)
143 # define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4)
144 # define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5)
145 # define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6)
146 # define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
147 # define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
148 # define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
149 # define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED (1 << 20)
150 #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
151 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
154 * WORD - structure size in bytes (includes size field)
155 * DWORD - valid flags mask
160 * WORD - structure size in bytes (includes size field)
161 * DWORD - valid flags mask
163 * BYTE - notify command code
167 * 0 - Notify(VGA, 0x81) is not used for notification
168 * 1 - Notify(VGA, 0x81) is used for notification
169 * 2 - Notify(VGA, n) is used for notification where
170 * n (0xd0-0xd9) is specified in notify command code.
172 * 1 - lid changes not reported though int10
174 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
175 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
178 * WORD - structure size in bytes (includes size field)
179 * DWORD - pending sbios requests
180 * BYTE - panel expansion mode
181 * BYTE - thermal state: target gfx controller
182 * BYTE - thermal state: state id (0: exit state, non-0: state)
183 * BYTE - forced power state: target gfx controller
184 * BYTE - forced power state: state id
185 * BYTE - system power source
186 * BYTE - panel backlight level (0-255)
188 /* pending sbios requests */
189 # define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
190 # define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
191 # define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
192 # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
193 # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
194 # define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
195 # define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
196 # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
197 # define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
198 /* panel expansion mode */
199 # define ATIF_PANEL_EXPANSION_DISABLE 0
200 # define ATIF_PANEL_EXPANSION_FULL 1
201 # define ATIF_PANEL_EXPANSION_ASPECT 2
202 /* target gfx controller */
203 # define ATIF_TARGET_GFX_SINGLE 0
204 # define ATIF_TARGET_GFX_PX_IGPU 1
205 # define ATIF_TARGET_GFX_PX_DGPU 2
206 /* system power source */
207 # define ATIF_POWER_SOURCE_AC 1
208 # define ATIF_POWER_SOURCE_DC 2
209 # define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
210 # define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
211 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
212 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
214 * WORD - structure size in bytes (includes size field)
215 * WORD - selected displays
216 * WORD - connected displays
218 * WORD - structure size in bytes (includes size field)
219 * WORD - selected displays
221 # define ATIF_LCD1 (1 << 0)
222 # define ATIF_CRT1 (1 << 1)
223 # define ATIF_TV (1 << 2)
224 # define ATIF_DFP1 (1 << 3)
225 # define ATIF_CRT2 (1 << 4)
226 # define ATIF_LCD2 (1 << 5)
227 # define ATIF_DFP2 (1 << 7)
228 # define ATIF_CV (1 << 8)
229 # define ATIF_DFP3 (1 << 9)
230 # define ATIF_DFP4 (1 << 10)
231 # define ATIF_DFP5 (1 << 11)
232 # define ATIF_DFP6 (1 << 12)
233 #define ATIF_FUNCTION_GET_LID_STATE 0x4
234 /* ARG0: ATIF_FUNCTION_GET_LID_STATE
237 * WORD - structure size in bytes (includes size field)
238 * BYTE - lid state (0: open, 1: closed)
240 * GET_LID_STATE only works at boot and resume, for general lid
241 * status, use the kernel provided status
243 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
244 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
247 * WORD - structure size in bytes (includes size field)
251 # define ATIF_TV_STD_NTSC 0
252 # define ATIF_TV_STD_PAL 1
253 # define ATIF_TV_STD_PALM 2
254 # define ATIF_TV_STD_PAL60 3
255 # define ATIF_TV_STD_NTSCJ 4
256 # define ATIF_TV_STD_PALCN 5
257 # define ATIF_TV_STD_PALN 6
258 # define ATIF_TV_STD_SCART_RGB 9
259 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
260 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
262 * WORD - structure size in bytes (includes size field)
267 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
268 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
271 * WORD - structure size in bytes (includes size field)
272 * BYTE - panel expansion mode
274 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
275 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
277 * WORD - structure size in bytes (includes size field)
278 * BYTE - panel expansion mode
281 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
282 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
284 * WORD - structure size in bytes (includes size field)
285 * WORD - gfx controller id
286 * BYTE - current temperature (degress Celsius)
289 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
290 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
293 * WORD - number of gfx devices
294 * WORD - device structure size in bytes (excludes device size field)
296 * WORD - bus number } repeated structure
297 * WORD - device number /
300 # define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
301 # define ATIF_XGP_PORT (1 << 1)
302 # define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
303 # define ATIF_XGP_PORT_IN_DOCK (1 << 3)
304 #define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION 0x15
305 /* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION
308 * WORD - number of reported external gfx devices
309 * WORD - device structure size in bytes (excludes device size field)
311 * WORD - bus number / repeated structure
314 # define ATIF_EXTERNAL_GRAPHICS_PORT (1 << 0)
317 #define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
318 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
321 * WORD - structure size in bytes (includes size field)
323 * DWORD - supported functions bit vector
325 /* supported functions vector */
326 # define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
327 # define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
328 # define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
329 # define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
330 # define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
331 # define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
332 # define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
333 # define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
334 #define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
335 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
338 * WORD - structure size in bytes (includes size field)
339 * DWORD - valid flags mask
343 # define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
344 # define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
345 # define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
346 # define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
347 # define ATPX_TV_SIGNAL_MUXED (1 << 4)
348 # define ATPX_DFP_SIGNAL_MUXED (1 << 5)
349 # define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
350 # define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
351 # define ATPX_ACF_NOT_SUPPORTED (1 << 8)
352 # define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
353 # define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
354 # define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
355 # define ATPX_DGPU_CAN_DRIVE_DISPLAYS (1 << 12)
356 # define ATPX_MS_HYBRID_GFX_SUPPORTED (1 << 14)
357 #define ATPX_FUNCTION_POWER_CONTROL 0x2
358 /* ARG0: ATPX_FUNCTION_POWER_CONTROL
360 * WORD - structure size in bytes (includes size field)
361 * BYTE - dGPU power state (0: power off, 1: power on)
364 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
365 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
367 * WORD - structure size in bytes (includes size field)
368 * WORD - display mux control (0: iGPU, 1: dGPU)
371 # define ATPX_INTEGRATED_GPU 0
372 # define ATPX_DISCRETE_GPU 1
373 #define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
374 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
376 * WORD - structure size in bytes (includes size field)
377 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
380 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
381 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
383 * WORD - structure size in bytes (includes size field)
384 * WORD - target gpu (0: iGPU, 1: dGPU)
387 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
388 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
390 * WORD - structure size in bytes (includes size field)
391 * WORD - target gpu (0: iGPU, 1: dGPU)
394 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8
395 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
398 * WORD - number of display connectors
399 * WORD - connector structure size in bytes (excludes connector size field)
401 * BYTE - ATIF display vector bit position } repeated
402 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
403 * WORD - connector ACPI id /
406 # define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
407 # define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
408 # define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
409 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
410 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
413 * WORD - number of HPD/DDC ports
414 * WORD - port structure size in bytes (excludes port size field)
415 * BYTE - ATIF display vector bit position \
416 * BYTE - hpd id } reapeated structure
419 * available on A+A systems only
422 # define ATPX_HPD_NONE 0
430 # define ATPX_DDC_NONE 0
441 #define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
442 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
445 * WORD - structure size in bytes (includes size field)
447 * DWORD - supported functions bit vector
449 /* supported functions vector */
450 # define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
451 # define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
452 # define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
453 # define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
454 #define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
455 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
458 * WORD - structure size in bytes (includes size field)
459 * DWORD - valid flags mask
460 * DWORD - flags (0: undocked, 1: docked)
463 # define ATCS_DOCKED (1 << 0)
464 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
465 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
467 * WORD - structure size in bytes (includes size field)
468 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
469 * WORD - valid flags mask
471 * BYTE - request type
472 * BYTE - performance request
474 * WORD - structure size in bytes (includes size field)
475 * BYTE - return value
478 # define ATCS_ADVERTISE_CAPS (1 << 0)
479 # define ATCS_WAIT_FOR_COMPLETION (1 << 1)
481 # define ATCS_PCIE_LINK_SPEED 1
482 /* performance request */
483 # define ATCS_REMOVE 0
484 # define ATCS_FORCE_LOW_POWER 1
485 # define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
486 # define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
487 # define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
489 # define ATCS_REQUEST_REFUSED 1
490 # define ATCS_REQUEST_COMPLETE 2
491 # define ATCS_REQUEST_IN_PROGRESS 3
492 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
493 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
497 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
498 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
500 * WORD - structure size in bytes (includes size field)
501 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
502 * BYTE - number of active lanes
504 * WORD - structure size in bytes (includes size field)
505 * BYTE - number of active lanes