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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-03-10 23:34:34 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-30 06:53:49 +0300 |
| commit | 8285052ef1c96562cfdedd9d0bf678995a8f4f94 (patch) | |
| tree | b89279dcb92f7a37dcbb0717a0a017e060f4f426 /drivers/gpu/drm/amd/include | |
| parent | 166c8178fb25e2b933184a4d695cdb4fe08de427 (diff) | |
| download | linux-8285052ef1c96562cfdedd9d0bf678995a8f4f94.tar.xz | |
drm/amdgpu: add new ATIF ACPI method
Used for fetching external GPU information.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/include')
| -rw-r--r-- | drivers/gpu/drm/amd/include/amd_acpi.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/include/amd_acpi.h b/drivers/gpu/drm/amd/include/amd_acpi.h index 50e893325141..9b9699fc433f 100644 --- a/drivers/gpu/drm/amd/include/amd_acpi.h +++ b/drivers/gpu/drm/amd/include/amd_acpi.h @@ -146,6 +146,7 @@ struct atcs_pref_req_output { # 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 @@ -300,6 +301,17 @@ struct atcs_pref_req_output { # 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 |