redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/radeon: add new ATIF ACPI method 

Used for fetching external GPU information.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2017-03-10 15:41:54 -05:00
parent 8285052ef1
commit c5e38e1194
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/radeon/radeon_acpi.h
View File

@ -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