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_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
150 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
153 * WORD - structure size in bytes (includes size field)
154 * DWORD - valid flags mask
159 * WORD - structure size in bytes (includes size field)
160 * DWORD - valid flags mask
162 * BYTE - notify command code
166 * 0 - Notify(VGA, 0x81) is not used for notification
167 * 1 - Notify(VGA, 0x81) is used for notification
168 * 2 - Notify(VGA, n) is used for notification where
169 * n (0xd0-0xd9) is specified in notify command code.
171 * 1 - lid changes not reported though int10
173 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
174 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
177 * WORD - structure size in bytes (includes size field)
178 * DWORD - pending sbios requests
179 * BYTE - panel expansion mode
180 * BYTE - thermal state: target gfx controller
181 * BYTE - thermal state: state id (0: exit state, non-0: state)
182 * BYTE - forced power state: target gfx controller
183 * BYTE - forced power state: state id
184 * BYTE - system power source
185 * BYTE - panel backlight level (0-255)
187 /* pending sbios requests */
188 # define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
189 # define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
190 # define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
191 # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
192 # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
193 # define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
194 # define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
195 # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
196 # define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
197 /* panel expansion mode */
198 # define ATIF_PANEL_EXPANSION_DISABLE 0
199 # define ATIF_PANEL_EXPANSION_FULL 1
200 # define ATIF_PANEL_EXPANSION_ASPECT 2
201 /* target gfx controller */
202 # define ATIF_TARGET_GFX_SINGLE 0
203 # define ATIF_TARGET_GFX_PX_IGPU 1
204 # define ATIF_TARGET_GFX_PX_DGPU 2
205 /* system power source */
206 # define ATIF_POWER_SOURCE_AC 1
207 # define ATIF_POWER_SOURCE_DC 2
208 # define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
209 # define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
210 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
211 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
213 * WORD - structure size in bytes (includes size field)
214 * WORD - selected displays
215 * WORD - connected displays
217 * WORD - structure size in bytes (includes size field)
218 * WORD - selected displays
220 # define ATIF_LCD1 (1 << 0)
221 # define ATIF_CRT1 (1 << 1)
222 # define ATIF_TV (1 << 2)
223 # define ATIF_DFP1 (1 << 3)
224 # define ATIF_CRT2 (1 << 4)
225 # define ATIF_LCD2 (1 << 5)
226 # define ATIF_DFP2 (1 << 7)
227 # define ATIF_CV (1 << 8)
228 # define ATIF_DFP3 (1 << 9)
229 # define ATIF_DFP4 (1 << 10)
230 # define ATIF_DFP5 (1 << 11)
231 # define ATIF_DFP6 (1 << 12)
232 #define ATIF_FUNCTION_GET_LID_STATE 0x4
233 /* ARG0: ATIF_FUNCTION_GET_LID_STATE
236 * WORD - structure size in bytes (includes size field)
237 * BYTE - lid state (0: open, 1: closed)
239 * GET_LID_STATE only works at boot and resume, for general lid
240 * status, use the kernel provided status
242 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
243 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
246 * WORD - structure size in bytes (includes size field)
250 # define ATIF_TV_STD_NTSC 0
251 # define ATIF_TV_STD_PAL 1
252 # define ATIF_TV_STD_PALM 2
253 # define ATIF_TV_STD_PAL60 3
254 # define ATIF_TV_STD_NTSCJ 4
255 # define ATIF_TV_STD_PALCN 5
256 # define ATIF_TV_STD_PALN 6
257 # define ATIF_TV_STD_SCART_RGB 9
258 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
259 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
261 * WORD - structure size in bytes (includes size field)
266 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
267 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
270 * WORD - structure size in bytes (includes size field)
271 * BYTE - panel expansion mode
273 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
274 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
276 * WORD - structure size in bytes (includes size field)
277 * BYTE - panel expansion mode
280 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
281 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
283 * WORD - structure size in bytes (includes size field)
284 * WORD - gfx controller id
285 * BYTE - current temperature (degress Celsius)
288 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
289 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
292 * WORD - number of gfx devices
293 * WORD - device structure size in bytes (excludes device size field)
295 * WORD - bus number } repeated structure
296 * WORD - device number /
299 # define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
300 # define ATIF_XGP_PORT (1 << 1)
301 # define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
302 # define ATIF_XGP_PORT_IN_DOCK (1 << 3)
305 #define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
306 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
309 * WORD - structure size in bytes (includes size field)
311 * DWORD - supported functions bit vector
313 /* supported functions vector */
314 # define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
315 # define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
316 # define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
317 # define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
318 # define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
319 # define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
320 # define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
321 # define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
322 #define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
323 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
326 * WORD - structure size in bytes (includes size field)
327 * DWORD - valid flags mask
331 # define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
332 # define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
333 # define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
334 # define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
335 # define ATPX_TV_SIGNAL_MUXED (1 << 4)
336 # define ATPX_DFP_SIGNAL_MUXED (1 << 5)
337 # define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
338 # define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
339 # define ATPX_ACF_NOT_SUPPORTED (1 << 8)
340 # define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
341 # define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
342 # define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
343 #define ATPX_FUNCTION_POWER_CONTROL 0x2
344 /* ARG0: ATPX_FUNCTION_POWER_CONTROL
346 * WORD - structure size in bytes (includes size field)
347 * BYTE - dGPU power state (0: power off, 1: power on)
350 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
351 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
353 * WORD - structure size in bytes (includes size field)
354 * WORD - display mux control (0: iGPU, 1: dGPU)
357 # define ATPX_INTEGRATED_GPU 0
358 # define ATPX_DISCRETE_GPU 1
359 #define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
360 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
362 * WORD - structure size in bytes (includes size field)
363 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
366 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
367 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
369 * WORD - structure size in bytes (includes size field)
370 * WORD - target gpu (0: iGPU, 1: dGPU)
373 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
374 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
376 * WORD - structure size in bytes (includes size field)
377 * WORD - target gpu (0: iGPU, 1: dGPU)
380 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8
381 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
384 * WORD - number of display connectors
385 * WORD - connector structure size in bytes (excludes connector size field)
387 * BYTE - ATIF display vector bit position } repeated
388 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
389 * WORD - connector ACPI id /
392 # define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
393 # define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
394 # define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
395 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
396 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
399 * WORD - number of HPD/DDC ports
400 * WORD - port structure size in bytes (excludes port size field)
401 * BYTE - ATIF display vector bit position \
402 * BYTE - hpd id } reapeated structure
405 * available on A+A systems only
408 # define ATPX_HPD_NONE 0
416 # define ATPX_DDC_NONE 0
427 #define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
428 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
431 * WORD - structure size in bytes (includes size field)
433 * DWORD - supported functions bit vector
435 /* supported functions vector */
436 # define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
437 # define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
438 # define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
439 # define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
440 #define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
441 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
444 * WORD - structure size in bytes (includes size field)
445 * DWORD - valid flags mask
446 * DWORD - flags (0: undocked, 1: docked)
449 # define ATCS_DOCKED (1 << 0)
450 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
451 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
453 * WORD - structure size in bytes (includes size field)
454 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
455 * WORD - valid flags mask
457 * BYTE - request type
458 * BYTE - performance request
460 * WORD - structure size in bytes (includes size field)
461 * BYTE - return value
464 # define ATCS_ADVERTISE_CAPS (1 << 0)
465 # define ATCS_WAIT_FOR_COMPLETION (1 << 1)
467 # define ATCS_PCIE_LINK_SPEED 1
468 /* performance request */
469 # define ATCS_REMOVE 0
470 # define ATCS_FORCE_LOW_POWER 1
471 # define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
472 # define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
473 # define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
475 # define ATCS_REQUEST_REFUSED 1
476 # define ATCS_REQUEST_COMPLETE 2
477 # define ATCS_REQUEST_IN_PROGRESS 3
478 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
479 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
483 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
484 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
486 * WORD - structure size in bytes (includes size field)
487 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
488 * BYTE - number of active lanes
490 * WORD - structure size in bytes (includes size field)
491 * BYTE - number of active lanes