diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index 59b96136871e..a529e369b2ac 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -508,6 +508,8 @@ struct dmub_visual_confirm_color { * @trace_buffer_size: size of the tracebuffer region * @fw_version: the firmware version information * @dal_fw: 1 if the firmware is DAL + * @shared_state_size: size of the shared state region in bytes + * @shared_state_features: number of shared state features */ struct dmub_fw_meta_info { uint32_t magic_value; /**< magic value identifying DMUB firmware meta info */ @@ -516,6 +518,9 @@ struct dmub_fw_meta_info { uint32_t fw_version; /**< the firmware version information */ uint8_t dal_fw; /**< 1 if the firmware is DAL */ uint8_t reserved[3]; /**< padding bits */ + uint32_t shared_state_size; /**< size of the shared state region in bytes */ + uint16_t shared_state_features; /**< number of shared state features */ + uint16_t reserved2; /**< padding bytes */ }; /** @@ -660,6 +665,116 @@ enum dmub_fw_boot_options_bit { }; //============================================================================== +//< DMUB_SHARED_STATE>========================================================== +//============================================================================== + +/** + * Shared firmware state between driver and firmware for lockless communication + * in situations where the inbox/outbox may be unavailable. + * + * Each structure *must* be at most 256-bytes in size. The layout allocation is + * described below: + * + * [Header (256 Bytes)][Feature 1 (256 Bytes)][Feature 2 (256 Bytes)]... + */ + +/** + * enum dmub_shared_state_feature_id - List of shared state features. + */ +enum dmub_shared_state_feature_id { + DMUB_SHARED_SHARE_FEATURE__INVALID = 0, + DMUB_SHARED_SHARE_FEATURE__IPS_FW = 1, + DMUB_SHARED_SHARE_FEATURE__IPS_DRIVER = 2, + DMUB_SHARED_STATE_FEATURE__LAST, /* Total number of features. */ +}; + +/** + * struct dmub_shared_state_ips_fw - Firmware signals for IPS. + */ +union dmub_shared_state_ips_fw_signals { + struct { + uint32_t ips1_commit : 1; /**< 1 if in IPS1 */ + uint32_t ips2_commit : 1; /**< 1 if in IPS2 */ + uint32_t reserved_bits : 30; /**< Reversed */ + } bits; + uint32_t all; +}; + +/** + * struct dmub_shared_state_ips_signals - Firmware signals for IPS. + */ +union dmub_shared_state_ips_driver_signals { + struct { + uint32_t allow_pg : 1; /**< 1 if PG is allowed */ + uint32_t allow_ips1 : 1; /**< 1 is IPS1 is allowed */ + uint32_t allow_ips2 : 1; /**< 1 is IPS1 is allowed */ + uint32_t allow_z10 : 1; /**< 1 if Z10 is allowed */ + uint32_t reserved_bits : 28; /**< Reversed bits */ + } bits; + uint32_t all; +}; + +/** + * IPS FW Version + */ +#define DMUB_SHARED_STATE__IPS_FW_VERSION 1 + +/** + * struct dmub_shared_state_ips_fw - Firmware state for IPS. + */ +struct dmub_shared_state_ips_fw { + union dmub_shared_state_ips_fw_signals signals; /**< 4 bytes, IPS signal bits */ + uint32_t reserved[61]; /**< Reversed, to be updated when adding new fields. */ +}; /* 248-bytes, fixed */ + +/** + * IPS Driver Version + */ +#define DMUB_SHARED_STATE__IPS_DRIVER_VERSION 1 + +/** + * struct dmub_shared_state_ips_driver - Driver state for IPS. + */ +struct dmub_shared_state_ips_driver { + union dmub_shared_state_ips_driver_signals signals; /**< 4 bytes, IPS signal bits */ + uint32_t reserved[61]; /**< Reversed, to be updated when adding new fields. */ +}; /* 248-bytes, fixed */ + +/** + * enum dmub_shared_state_feature_common - Generic payload. + */ +struct dmub_shared_state_feature_common { + uint32_t padding[62]; +}; /* 248-bytes, fixed */ + +/** + * enum dmub_shared_state_feature_header - Feature description. + */ +struct dmub_shared_state_feature_header { + uint16_t id; /**< Feature ID */ + uint16_t version; /**< Feature version */ + uint32_t reserved; /**< Reserved bytes. */ +}; /* 8 bytes, fixed */ + +/** + * struct dmub_shared_state_feature_block - Feature block. + */ +struct dmub_shared_state_feature_block { + struct dmub_shared_state_feature_header header; /**< Shared state header. */ + union dmub_shared_feature_state_union { + struct dmub_shared_state_feature_common common; /**< Generic data */ + struct dmub_shared_state_ips_fw ips_fw; /**< IPS firmware state */ + struct dmub_shared_state_ips_driver ips_driver; /**< IPS driver state */ + } data; /**< Shared state data. */ +}; /* 256-bytes, fixed */ + +/** + * Shared state size in bytes. + */ +#define DMUB_FW_HEADER_SHARED_STATE_SIZE \ + ((DMUB_SHARED_STATE_FEATURE__LAST + 1) * sizeof(struct dmub_shared_state_feature_block)) + +//============================================================================== //</DMUB_STATUS>================================================================ //============================================================================== //< DMUB_VBIOS>================================================================= |