drm/radeon: add new ATIF ACPI method
Used for fetching external GPU information. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -97,6 +97,7 @@ int radeon_atif_handler(struct radeon_device *rdev,
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# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
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# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
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# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
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# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
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# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
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# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
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# define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED (1 << 20)
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#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
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#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
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/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
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/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
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* ARG1: none
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* ARG1: none
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@ -251,6 +252,17 @@ int radeon_atif_handler(struct radeon_device *rdev,
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# define ATIF_XGP_PORT (1 << 1)
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# define ATIF_XGP_PORT (1 << 1)
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# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
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# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
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# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
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# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
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#define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION 0x15
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/* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION
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* ARG1: none
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* OUTPUT:
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* WORD - number of reported external gfx devices
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* WORD - device structure size in bytes (excludes device size field)
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* WORD - flags \
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* WORD - bus number / repeated structure
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*/
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/* flags */
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# define ATIF_EXTERNAL_GRAPHICS_PORT (1 << 0)
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/* ATPX */
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/* ATPX */
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#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
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#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
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