/* * 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 RADEON_ACPI_H #define RADEON_ACPI_H struct radeon_device; struct acpi_bus_event; /* 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_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0) # define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1) # 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_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5) # define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6) # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7) # define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8) /* supported functions vector */ # define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0) # define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1) # define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2) # define ATIF_GET_LID_STATE_SUPPORTED (1 << 3) # define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4) # define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5) # define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6) # define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7) # define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12) # define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14) # 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 */ #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 - panel expansion mode * 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 * BYTE - system power source * BYTE - panel backlight level (0-255) */ /* pending sbios requests */ # define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0) # define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1) # 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_DISPLAY_CONF_CHANGE_REQUEST (1 << 5) # define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6) # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7) # define ATIF_DGPU_DISPLAY_EVENT (1 << 8) /* panel expansion mode */ # define ATIF_PANEL_EXPANSION_DISABLE 0 # define ATIF_PANEL_EXPANSION_FULL 1 # define ATIF_PANEL_EXPANSION_ASPECT 2 /* 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_SELECT_ACTIVE_DISPLAYS 0x3 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS * ARG1: * WORD - structure size in bytes (includes size field) * WORD - selected displays * WORD - connected displays * OUTPUT: * WORD - structure size in bytes (includes size field) * WORD - selected displays */ # define ATIF_LCD1 (1 << 0) # define ATIF_CRT1 (1 << 1) # define ATIF_TV (1 << 2) # define ATIF_DFP1 (1 << 3) # define ATIF_CRT2 (1 << 4) # define ATIF_LCD2 (1 << 5) # define ATIF_DFP2 (1 << 7) # define ATIF_CV (1 << 8) # define ATIF_DFP3 (1 << 9) # define ATIF_DFP4 (1 << 10) # define ATIF_DFP5 (1 << 11) # define ATIF_DFP6 (1 << 12) #define ATIF_FUNCTION_GET_LID_STATE 0x4 /* ARG0: ATIF_FUNCTION_GET_LID_STATE * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * BYTE - lid state (0: open, 1: closed) * * GET_LID_STATE only works at boot and resume, for general lid * status, use the kernel provided status */ #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * BYTE - 0 * BYTE - TV standard */ # define ATIF_TV_STD_NTSC 0 # define ATIF_TV_STD_PAL 1 # define ATIF_TV_STD_PALM 2 # define ATIF_TV_STD_PAL60 3 # define ATIF_TV_STD_NTSCJ 4 # define ATIF_TV_STD_PALCN 5 # define ATIF_TV_STD_PALN 6 # define ATIF_TV_STD_SCART_RGB 9 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS * ARG1: * WORD - structure size in bytes (includes size field) * BYTE - 0 * BYTE - TV standard * OUTPUT: none */ #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS * ARG1: none * OUTPUT: * WORD - structure size in bytes (includes size field) * BYTE - panel expansion mode */ #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS * ARG1: * WORD - structure size in bytes (includes size field) * BYTE - panel expansion mode * OUTPUT: none */ #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_GET_GRAPHICS_DEVICE_TYPES 0xF /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES * ARG1: none * OUTPUT: * WORD - number of gfx devices * WORD - device structure size in bytes (excludes device size field) * DWORD - flags \ * WORD - bus number } repeated structure * WORD - device number / */ /* flags */ # define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0) # define ATIF_XGP_PORT (1 << 1) # define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2) # define ATIF_XGP_PORT_IN_DOCK (1 << 3) #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_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 */ #if defined(CONFIG_VGA_SWITCHEROO) void radeon_register_atpx_handler(void); void radeon_unregister_atpx_handler(void); bool radeon_has_atpx_dgpu_power_cntl(void); bool radeon_is_atpx_hybrid(void); bool radeon_has_atpx(void); bool radeon_atpx_dgpu_req_power_for_displays(void); #endif #endif