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
30/* AMD hw uses four ACPI control methods:
31 * 1. ATIF
32 * ARG0: (ACPI_INTEGER) function code
33 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
34 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
35 * ATIF provides an entry point for the gfx driver to interact with the sbios.
36 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
37 * notification. Which notification is used as indicated by the ATIF Control
38 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
39 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
40 * to identify pending System BIOS requests and associated parameters. For
41 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
42 * will perform display device detection and invoke ATIF Control Method
43 * SELECT_ACTIVE_DISPLAYS.
44 *
45 * 2. ATPX
46 * ARG0: (ACPI_INTEGER) function code
47 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
48 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
49 * ATPX methods are used on PowerXpress systems to handle mux switching and
50 * discrete GPU power control.
51 *
52 * 3. ATRM
53 * ARG0: (ACPI_INTEGER) offset of vbios rom data
54 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
55 * OUTPUT: (ACPI_BUFFER) output buffer
56 * ATRM provides an interfacess to access the discrete GPU vbios image on
57 * PowerXpress systems with multiple GPUs.
58 *
59 * 4. ATCS
60 * ARG0: (ACPI_INTEGER) function code
61 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
62 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
63 * ATCS provides an interface to AMD chipset specific functionality.
64 *
65 */
66/* ATIF */
67#define ATIF_FUNCTION_VERIFY_INTERFACE 0x0
68/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
69 * ARG1: none
70 * OUTPUT:
71 * WORD - structure size in bytes (includes size field)
72 * WORD - version
73 * DWORD - supported notifications mask
74 * DWORD - supported functions bit vector
75 */
76/* Notifications mask */
77# define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0)
78# define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1)
79# define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2)
80# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3)
81# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4)
82# define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5)
83# define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6)
84# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7)
85# define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8)
86/* supported functions vector */
87# define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0)
88# define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1)
89# define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2)
90# define ATIF_GET_LID_STATE_SUPPORTED (1 << 3)
91# define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4)
92# define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5)
93# define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6)
94# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
95# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
96# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
97# define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED (1 << 20)
98#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
99/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
100 * ARG1: none
101 * OUTPUT:
102 * WORD - structure size in bytes (includes size field)
103 * DWORD - valid flags mask
104 * DWORD - flags
105 *
106 * OR
107 *
108 * WORD - structure size in bytes (includes size field)
109 * DWORD - valid flags mask
110 * DWORD - flags
111 * BYTE - notify command code
112 *
113 * flags
114 * bits 1:0:
115 * 0 - Notify(VGA, 0x81) is not used for notification
116 * 1 - Notify(VGA, 0x81) is used for notification
117 * 2 - Notify(VGA, n) is used for notification where
118 * n (0xd0-0xd9) is specified in notify command code.
119 * bit 2:
120 * 1 - lid changes not reported though int10
121 */
122#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
123/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
124 * ARG1: none
125 * OUTPUT:
126 * WORD - structure size in bytes (includes size field)
127 * DWORD - pending sbios requests
128 * BYTE - panel expansion mode
129 * BYTE - thermal state: target gfx controller
130 * BYTE - thermal state: state id (0: exit state, non-0: state)
131 * BYTE - forced power state: target gfx controller
132 * BYTE - forced power state: state id
133 * BYTE - system power source
134 * BYTE - panel backlight level (0-255)
135 */
136/* pending sbios requests */
137# define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
138# define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
139# define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
140# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
141# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
142# define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
143# define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
144# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
145# define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
146/* panel expansion mode */
147# define ATIF_PANEL_EXPANSION_DISABLE 0
148# define ATIF_PANEL_EXPANSION_FULL 1
149# define ATIF_PANEL_EXPANSION_ASPECT 2
150/* target gfx controller */
151# define ATIF_TARGET_GFX_SINGLE 0
152# define ATIF_TARGET_GFX_PX_IGPU 1
153# define ATIF_TARGET_GFX_PX_DGPU 2
154/* system power source */
155# define ATIF_POWER_SOURCE_AC 1
156# define ATIF_POWER_SOURCE_DC 2
157# define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
158# define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
159#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
160/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
161 * ARG1:
162 * WORD - structure size in bytes (includes size field)
163 * WORD - selected displays
164 * WORD - connected displays
165 * OUTPUT:
166 * WORD - structure size in bytes (includes size field)
167 * WORD - selected displays
168 */
169# define ATIF_LCD1 (1 << 0)
170# define ATIF_CRT1 (1 << 1)
171# define ATIF_TV (1 << 2)
172# define ATIF_DFP1 (1 << 3)
173# define ATIF_CRT2 (1 << 4)
174# define ATIF_LCD2 (1 << 5)
175# define ATIF_DFP2 (1 << 7)
176# define ATIF_CV (1 << 8)
177# define ATIF_DFP3 (1 << 9)
178# define ATIF_DFP4 (1 << 10)
179# define ATIF_DFP5 (1 << 11)
180# define ATIF_DFP6 (1 << 12)
181#define ATIF_FUNCTION_GET_LID_STATE 0x4
182/* ARG0: ATIF_FUNCTION_GET_LID_STATE
183 * ARG1: none
184 * OUTPUT:
185 * WORD - structure size in bytes (includes size field)
186 * BYTE - lid state (0: open, 1: closed)
187 *
188 * GET_LID_STATE only works at boot and resume, for general lid
189 * status, use the kernel provided status
190 */
191#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
192/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
193 * ARG1: none
194 * OUTPUT:
195 * WORD - structure size in bytes (includes size field)
196 * BYTE - 0
197 * BYTE - TV standard
198 */
199# define ATIF_TV_STD_NTSC 0
200# define ATIF_TV_STD_PAL 1
201# define ATIF_TV_STD_PALM 2
202# define ATIF_TV_STD_PAL60 3
203# define ATIF_TV_STD_NTSCJ 4
204# define ATIF_TV_STD_PALCN 5
205# define ATIF_TV_STD_PALN 6
206# define ATIF_TV_STD_SCART_RGB 9
207#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
208/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
209 * ARG1:
210 * WORD - structure size in bytes (includes size field)
211 * BYTE - 0
212 * BYTE - TV standard
213 * OUTPUT: none
214 */
215#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
216/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
217 * ARG1: none
218 * OUTPUT:
219 * WORD - structure size in bytes (includes size field)
220 * BYTE - panel expansion mode
221 */
222#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
223/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
224 * ARG1:
225 * WORD - structure size in bytes (includes size field)
226 * BYTE - panel expansion mode
227 * OUTPUT: none
228 */
229#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
230/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
231 * ARG1:
232 * WORD - structure size in bytes (includes size field)
233 * WORD - gfx controller id
234 * BYTE - current temperature (degress Celsius)
235 * OUTPUT: none
236 */
237#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
238/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
239 * ARG1: none
240 * OUTPUT:
241 * WORD - number of gfx devices
242 * WORD - device structure size in bytes (excludes device size field)
243 * DWORD - flags \
244 * WORD - bus number } repeated structure
245 * WORD - device number /
246 */
247/* flags */
248# define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
249# define ATIF_XGP_PORT (1 << 1)
250# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
251# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
252#define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION 0x15
253/* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION
254 * ARG1: none
255 * OUTPUT:
256 * WORD - number of reported external gfx devices
257 * WORD - device structure size in bytes (excludes device size field)
258 * WORD - flags \
259 * WORD - bus number / repeated structure
260 */
261/* flags */
262# define ATIF_EXTERNAL_GRAPHICS_PORT (1 << 0)
263
264/* ATPX */
265#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
266/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
267 * ARG1: none
268 * OUTPUT:
269 * WORD - structure size in bytes (includes size field)
270 * WORD - version
271 * DWORD - supported functions bit vector
272 */
273/* supported functions vector */
274# define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
275# define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
276# define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
277# define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
278# define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
279# define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
280# define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
281# define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
282#define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
283/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
284 * ARG1: none
285 * OUTPUT:
286 * WORD - structure size in bytes (includes size field)
287 * DWORD - valid flags mask
288 * DWORD - flags
289 */
290/* flags */
291# define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
292# define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
293# define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
294# define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
295# define ATPX_TV_SIGNAL_MUXED (1 << 4)
296# define ATPX_DFP_SIGNAL_MUXED (1 << 5)
297# define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
298# define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
299# define ATPX_ACF_NOT_SUPPORTED (1 << 8)
300# define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
301# define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
302# define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
303# define ATPX_DGPU_CAN_DRIVE_DISPLAYS (1 << 12)
304# define ATPX_MS_HYBRID_GFX_SUPPORTED (1 << 14)
305#define ATPX_FUNCTION_POWER_CONTROL 0x2
306/* ARG0: ATPX_FUNCTION_POWER_CONTROL
307 * ARG1:
308 * WORD - structure size in bytes (includes size field)
309 * BYTE - dGPU power state (0: power off, 1: power on)
310 * OUTPUT: none
311 */
312#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
313/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
314 * ARG1:
315 * WORD - structure size in bytes (includes size field)
316 * WORD - display mux control (0: iGPU, 1: dGPU)
317 * OUTPUT: none
318 */
319# define ATPX_INTEGRATED_GPU 0
320# define ATPX_DISCRETE_GPU 1
321#define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
322/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
323 * ARG1:
324 * WORD - structure size in bytes (includes size field)
325 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
326 * OUTPUT: none
327 */
328#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
329/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
330 * ARG1:
331 * WORD - structure size in bytes (includes size field)
332 * WORD - target gpu (0: iGPU, 1: dGPU)
333 * OUTPUT: none
334 */
335#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
336/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
337 * ARG1:
338 * WORD - structure size in bytes (includes size field)
339 * WORD - target gpu (0: iGPU, 1: dGPU)
340 * OUTPUT: none
341 */
342#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8
343/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
344 * ARG1: none
345 * OUTPUT:
346 * WORD - number of display connectors
347 * WORD - connector structure size in bytes (excludes connector size field)
348 * BYTE - flags \
349 * BYTE - ATIF display vector bit position } repeated
350 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
351 * WORD - connector ACPI id /
352 */
353/* flags */
354# define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
355# define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
356# define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
357#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
358/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
359 * ARG1: none
360 * OUTPUT:
361 * WORD - number of HPD/DDC ports
362 * WORD - port structure size in bytes (excludes port size field)
363 * BYTE - ATIF display vector bit position \
364 * BYTE - hpd id } reapeated structure
365 * BYTE - ddc id /
366 *
367 * available on A+A systems only
368 */
369/* hpd id */
370# define ATPX_HPD_NONE 0
371# define ATPX_HPD1 1
372# define ATPX_HPD2 2
373# define ATPX_HPD3 3
374# define ATPX_HPD4 4
375# define ATPX_HPD5 5
376# define ATPX_HPD6 6
377/* ddc id */
378# define ATPX_DDC_NONE 0
379# define ATPX_DDC1 1
380# define ATPX_DDC2 2
381# define ATPX_DDC3 3
382# define ATPX_DDC4 4
383# define ATPX_DDC5 5
384# define ATPX_DDC6 6
385# define ATPX_DDC7 7
386# define ATPX_DDC8 8
387
388/* ATCS */
389#define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
390/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
391 * ARG1: none
392 * OUTPUT:
393 * WORD - structure size in bytes (includes size field)
394 * WORD - version
395 * DWORD - supported functions bit vector
396 */
397/* supported functions vector */
398# define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
399# define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
400# define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
401# define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
402#define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
403/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
404 * ARG1: none
405 * OUTPUT:
406 * WORD - structure size in bytes (includes size field)
407 * DWORD - valid flags mask
408 * DWORD - flags (0: undocked, 1: docked)
409 */
410/* flags */
411# define ATCS_DOCKED (1 << 0)
412#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
413/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
414 * ARG1:
415 * WORD - structure size in bytes (includes size field)
416 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
417 * WORD - valid flags mask
418 * WORD - flags
419 * BYTE - request type
420 * BYTE - performance request
421 * OUTPUT:
422 * WORD - structure size in bytes (includes size field)
423 * BYTE - return value
424 */
425/* flags */
426# define ATCS_ADVERTISE_CAPS (1 << 0)
427# define ATCS_WAIT_FOR_COMPLETION (1 << 1)
428/* request type */
429# define ATCS_PCIE_LINK_SPEED 1
430/* performance request */
431# define ATCS_REMOVE 0
432# define ATCS_FORCE_LOW_POWER 1
433# define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
434# define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
435# define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
436/* return value */
437# define ATCS_REQUEST_REFUSED 1
438# define ATCS_REQUEST_COMPLETE 2
439# define ATCS_REQUEST_IN_PROGRESS 3
440#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
441/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
442 * ARG1: none
443 * OUTPUT: none
444 */
445#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
446/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
447 * ARG1:
448 * WORD - structure size in bytes (includes size field)
449 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
450 * BYTE - number of active lanes
451 * OUTPUT:
452 * WORD - structure size in bytes (includes size field)
453 * BYTE - number of active lanes
454 */
455
456#endif
457