/* * Copyright 2012 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * */ #ifndef AMD_ACPI_H #define AMD_ACPI_H #define ACPI_AC_CLASS "ac_adapter" struct atif_verify_interface { u16 size; /* structure size in bytes (includes size field) */ u16 version; /* version */ u32 notification_mask; /* supported notifications mask */ u32 function_bits; /* supported functions bit vector */ } __packed; struct atif_system_params { u16 size; /* structure size in bytes (includes size field) */ u32 valid_mask; /* valid flags mask */ u32 flags; /* flags */ u8 command_code; /* notify command code */ } __packed; struct atif_sbios_requests { u16 size; /* structure size in bytes (includes size field) */ u32 pending; /* pending sbios requests */ u8 panel_exp_mode; /* panel expansion mode */ u8 thermal_gfx; /* thermal state: target gfx controller */ u8 thermal_state; /* thermal state: state id (0: exit state, non-0: state) */ u8 forced_power_gfx; /* forced power state: target gfx controller */ u8 forced_power_state; /* forced power state: state id */ u8 system_power_src; /* system power source */ u8 backlight_level; /* panel backlight level (0-255) */ } __packed; struct atif_qbtc_arguments { u16 size; /* structure size in bytes (includes size field) */ u8 requested_display; /* which display is requested */ } __packed; #define ATIF_QBTC_MAX_DATA_POINTS 99 struct atif_qbtc_data_point { u8 luminance; /* luminance in percent */ u8 ipnut_signal; /* input signal in range 0-255 */ } __packed; struct atif_qbtc_output { u16 size; /* structure size in bytes (includes size field) */ u16 flags; /* all zeroes */ u8 error_code; /* error code */ u8 ac_level; /* default brightness on AC power */ u8 dc_level; /* default brightness on DC power */ u8 min_input_signal; /* max input signal in range 0-255 */ u8 max_input_signal; /* min input signal in range 0-255 */ u8 number_of_points; /* number of data points */ struct atif_qbtc_data_point data_points[ATIF_QBTC_MAX_DATA_POINTS]; } __packed; #define ATIF_NOTIFY_MASK 0x3 #define ATIF_NOTIFY_NONE 0 #define ATIF_NOTIFY_81 1 #define ATIF_NOTIFY_N 2 struct atcs_verify_interface { u16 size; /* structure size in bytes (includes size field) */ u16 version; /* version */ u32 function_bits; /* supported functions bit vector */ } __packed; #define ATCS_VALID_FLAGS_MASK 0x3 struct atcs_pref_req_input { u16 size; /* structure size in bytes (includes size field) */ u16 client_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ u16 valid_flags_mask; /* valid flags mask */ u16 flags; /* flags */ u8 req_type; /* request type */ u8 perf_req; /* performance request */ } __packed; struct atcs_pref_req_output { u16 size; /* structure size in bytes (includes size field) */ u8 ret_val; /* return value */ } __packed; struct atcs_pwr_shift_input { u16 size; /* structure size in bytes (includes size field) */ u16 dgpu_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ u8 dev_acpi_state; /* D0 = 0, D3 hot = 3 */ u8 drv_state; /* 0 = operational, 1 = not operational */ } __packed; /* AMD hw uses four ACPI control methods: * 1. ATIF * ARG0: (ACPI_INTEGER) function code * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes * ATIF provides an entry point for the gfx driver to interact with the sbios. * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom * notification. Which notification is used as indicated by the ATIF Control * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS * to identify pending System BIOS requests and associated parameters. For * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver * will perform display device detection and invoke ATIF Control Method * SELECT_ACTIVE_DISPLAYS. * * 2. ATPX * ARG0: (ACPI_INTEGER) function code * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes * ATPX methods are used on PowerXpress systems to handle mux switching and * discrete GPU power control. * * 3. ATRM * ARG0: (ACPI_INTEGER) offset of vbios rom data * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K). * OUTPUT: (ACPI_BUFFER) output buffer * ATRM provides an interfacess to access the discrete GPU vbios image on * PowerXpress systems with multiple GPUs. * * 4. ATCS * ARG0: (ACPI_INTEGER) function code * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes * ATCS provides an interface to AMD chipset specific functionality. * */ /* ATIF */ #define ATIF_FUNCTION_VERIFY_INTERFACE 0x0 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * WORD - version * DWORD - supported notifications mask * DWORD - supported functions bit vector */ /* Notifications mask */ # define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2) # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3) # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4) # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7) # define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8) # define ATIF_GPU_PACKAGE_POWER_LIMIT_REQUEST_SUPPORTED (1 << 12) /* supported functions vector */ # define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0) # define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1) # define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12) # define ATIF_QUERY_BACKLIGHT_TRANSFER_CHARACTERISTICS_SUPPORTED (1 << 15) # define ATIF_READY_TO_UNDOCK_NOTIFICATION_SUPPORTED (1 << 16) # define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED (1 << 20) #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * DWORD - valid flags mask * DWORD - flags * * OR * * WORD - structure size in bytes (includes size field) * DWORD - valid flags mask * DWORD - flags * BYTE - notify command code * * flags * bits 1:0: * 0 - Notify(VGA, 0x81) is not used for notification * 1 - Notify(VGA, 0x81) is used for notification * 2 - Notify(VGA, n) is used for notification where * n (0xd0-0xd9) is specified in notify command code. * bit 2: * 1 - lid changes not reported though int10 * bit 3: * 1 - system bios controls overclocking * bit 4: * 1 - enable overclocking */ #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * DWORD - pending sbios requests * BYTE - reserved (all zeroes) * BYTE - thermal state: target gfx controller * BYTE - thermal state: state id (0: exit state, non-0: state) * BYTE - forced power state: target gfx controller * BYTE - forced power state: state id (0: forced state, non-0: state) * BYTE - system power source * BYTE - panel backlight level (0-255) * BYTE - GPU package power limit: target gfx controller * DWORD - GPU package power limit: value (24:8 fractional format, Watts) */ /* pending sbios requests */ # define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2) # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3) # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4) # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7) # define ATIF_DGPU_DISPLAY_EVENT (1 << 8) # define ATIF_GPU_PACKAGE_POWER_LIMIT_REQUEST (1 << 12) /* target gfx controller */ # define ATIF_TARGET_GFX_SINGLE 0 # define ATIF_TARGET_GFX_PX_IGPU 1 # define ATIF_TARGET_GFX_PX_DGPU 2 /* system power source */ # define ATIF_POWER_SOURCE_AC 1 # define ATIF_POWER_SOURCE_DC 2 # define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3 # define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION * ARG1: * WORD - structure size in bytes (includes size field) * WORD - gfx controller id * BYTE - current temperature (degress Celsius) * OUTPUT: none */ #define ATIF_FUNCTION_QUERY_BRIGHTNESS_TRANSFER_CHARACTERISTICS 0x10 /* ARG0: ATIF_FUNCTION_QUERY_BRIGHTNESS_TRANSFER_CHARACTERISTICS * ARG1: * WORD - structure size in bytes (includes size field) * BYTE - requested display * OUTPUT: * WORD - structure size in bytes (includes size field) * WORD - flags (currently all 16 bits are reserved) * BYTE - error code (on failure, disregard all below fields) * BYTE - AC level (default brightness in percent when machine has full power) * BYTE - DC level (default brightness in percent when machine is on battery) * BYTE - min input signal, in range 0-255, corresponding to 0% backlight * BYTE - max input signal, in range 0-255, corresponding to 100% backlight * BYTE - number of reported data points * BYTE - luminance level in percent \ repeated structure * BYTE - input signal in range 0-255 / does not have entries for 0% and 100% */ /* requested display */ # define ATIF_QBTC_REQUEST_LCD1 0 # define ATIF_QBTC_REQUEST_CRT1 1 # define ATIF_QBTC_REQUEST_DFP1 3 # define ATIF_QBTC_REQUEST_CRT2 4 # define ATIF_QBTC_REQUEST_LCD2 5 # define ATIF_QBTC_REQUEST_DFP2 7 # define ATIF_QBTC_REQUEST_DFP3 9 # define ATIF_QBTC_REQUEST_DFP4 10 # define ATIF_QBTC_REQUEST_DFP5 11 # define ATIF_QBTC_REQUEST_DFP6 12 /* error code */ # define ATIF_QBTC_ERROR_CODE_SUCCESS 0 # define ATIF_QBTC_ERROR_CODE_FAILURE 1 # define ATIF_QBTC_ERROR_CODE_DEVICE_NOT_SUPPORTED 2 #define ATIF_FUNCTION_READY_TO_UNDOCK_NOTIFICATION 0x11 /* ARG0: ATIF_FUNCTION_READY_TO_UNDOCK_NOTIFICATION * ARG1: none * OUTPUT: none */ #define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION 0x15 /* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION * ARG1: none * OUTPUT: * WORD - number of reported external gfx devices * WORD - device structure size in bytes (excludes device size field) * WORD - flags \ * WORD - bus number / repeated structure */ /* flags */ # define ATIF_EXTERNAL_GRAPHICS_PORT (1 << 0) /* ATPX */ #define ATPX_FUNCTION_VERIFY_INTERFACE 0x0 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * WORD - version * DWORD - supported functions bit vector */ /* supported functions vector */ # define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0) # define ATPX_POWER_CONTROL_SUPPORTED (1 << 1) # define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2) # define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3) # define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4) # define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5) # define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7) # define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8) #define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * DWORD - valid flags mask * DWORD - flags */ /* flags */ # define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0) # define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1) # define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2) # define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3) # define ATPX_TV_SIGNAL_MUXED (1 << 4) # define ATPX_DFP_SIGNAL_MUXED (1 << 5) # define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6) # define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7) # define ATPX_ACF_NOT_SUPPORTED (1 << 8) # define ATPX_FIXED_NOT_SUPPORTED (1 << 9) # define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10) # define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11) # define ATPX_DGPU_CAN_DRIVE_DISPLAYS (1 << 12) # define ATPX_MS_HYBRID_GFX_SUPPORTED (1 << 14) #define ATPX_FUNCTION_POWER_CONTROL 0x2 /* ARG0: ATPX_FUNCTION_POWER_CONTROL * ARG1: * WORD - structure size in bytes (includes size field) * BYTE - dGPU power state (0: power off, 1: power on) * OUTPUT: none */ #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL * ARG1: * WORD - structure size in bytes (includes size field) * WORD - display mux control (0: iGPU, 1: dGPU) * OUTPUT: none */ # define ATPX_INTEGRATED_GPU 0 # define ATPX_DISCRETE_GPU 1 #define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL * ARG1: * WORD - structure size in bytes (includes size field) * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU) * OUTPUT: none */ #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION * ARG1: * WORD - structure size in bytes (includes size field) * WORD - target gpu (0: iGPU, 1: dGPU) * OUTPUT: none */ #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION * ARG1: * WORD - structure size in bytes (includes size field) * WORD - target gpu (0: iGPU, 1: dGPU) * OUTPUT: none */ #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING * ARG1: none * OUTPUT: * WORD - number of display connectors * WORD - connector structure size in bytes (excludes connector size field) * BYTE - flags \ * BYTE - ATIF display vector bit position } repeated * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure * WORD - connector ACPI id / */ /* flags */ # define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0) # define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1) # define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2) #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS * ARG1: none * OUTPUT: * WORD - number of HPD/DDC ports * WORD - port structure size in bytes (excludes port size field) * BYTE - ATIF display vector bit position \ * BYTE - hpd id } reapeated structure * BYTE - ddc id / * * available on A+A systems only */ /* hpd id */ # define ATPX_HPD_NONE 0 # define ATPX_HPD1 1 # define ATPX_HPD2 2 # define ATPX_HPD3 3 # define ATPX_HPD4 4 # define ATPX_HPD5 5 # define ATPX_HPD6 6 /* ddc id */ # define ATPX_DDC_NONE 0 # define ATPX_DDC1 1 # define ATPX_DDC2 2 # define ATPX_DDC3 3 # define ATPX_DDC4 4 # define ATPX_DDC5 5 # define ATPX_DDC6 6 # define ATPX_DDC7 7 # define ATPX_DDC8 8 /* ATCS */ #define ATCS_FUNCTION_VERIFY_INTERFACE 0x0 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * WORD - version * DWORD - supported functions bit vector */ /* supported functions vector */ # define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0) # define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1) # define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2) # define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3) # define ATCS_SET_POWER_SHIFT_CONTROL_SUPPORTED (1 << 7) #define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * DWORD - valid flags mask * DWORD - flags (0: undocked, 1: docked) */ /* flags */ # define ATCS_DOCKED (1 << 0) #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST * ARG1: * WORD - structure size in bytes (includes size field) * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) * WORD - valid flags mask * WORD - flags * BYTE - request type * BYTE - performance request * OUTPUT: * WORD - structure size in bytes (includes size field) * BYTE - return value */ /* flags */ # define ATCS_ADVERTISE_CAPS (1 << 0) # define ATCS_WAIT_FOR_COMPLETION (1 << 1) /* request type */ # define ATCS_PCIE_LINK_SPEED 1 /* performance request */ # define ATCS_REMOVE 0 # define ATCS_FORCE_LOW_POWER 1 # define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */ # define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */ # define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */ /* return value */ # define ATCS_REQUEST_REFUSED 1 # define ATCS_REQUEST_COMPLETE 2 # define ATCS_REQUEST_IN_PROGRESS 3 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION * ARG1: none * OUTPUT: none */ #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH * ARG1: * WORD - structure size in bytes (includes size field) * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) * BYTE - number of active lanes * OUTPUT: * WORD - structure size in bytes (includes size field) * BYTE - number of active lanes */ #define ATCS_FUNCTION_POWER_SHIFT_CONTROL 0x8 /* ARG0: ATCS_FUNCTION_POWER_SHIFT_CONTROL * ARG1: * WORD - structure size in bytes (includes size field) * WORD - dGPU id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) * BYTE - Device ACPI state * BYTE - Driver state * OUTPUT: none */ #endif