Used for fetching external GPU information. Signed-off-by: Alex Deucher <alexander.deucher at amd.com> --- drivers/gpu/drm/radeon/radeon_acpi.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_acpi.h b/drivers/gpu/drm/radeon/radeon_acpi.h index cd872f7..7af1977 100644 --- a/drivers/gpu/drm/radeon/radeon_acpi.h +++ b/drivers/gpu/drm/radeon/radeon_acpi.h @@ -97,6 +97,7 @@ int radeon_atif_handler(struct radeon_device *rdev, # 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 @@ -251,6 +252,17 @@ int radeon_atif_handler(struct radeon_device *rdev, # 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 -- 2.5.5
