diff options
Diffstat (limited to 'drivers/misc/mei/hw.h')
| -rw-r--r-- | drivers/misc/mei/hw.h | 89 |
1 files changed, 84 insertions, 5 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index e7e020dba6b1..319418ddf4fb 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -93,6 +93,12 @@ #define HBM_MAJOR_VERSION_VT 2 /* + * MEI version with GSC support + */ +#define HBM_MINOR_VERSION_GSC 2 +#define HBM_MAJOR_VERSION_GSC 2 + +/* * MEI version with capabilities message support */ #define HBM_MINOR_VERSION_CAP 2 @@ -229,18 +235,19 @@ enum mei_cl_disconnect_status { * * @MEI_EXT_HDR_NONE: sentinel * @MEI_EXT_HDR_VTAG: vtag header + * @MEI_EXT_HDR_GSC: gsc header */ enum mei_ext_hdr_type { MEI_EXT_HDR_NONE = 0, MEI_EXT_HDR_VTAG = 1, + MEI_EXT_HDR_GSC = 2, }; /** * struct mei_ext_hdr - extend header descriptor (TLV) * @type: enum mei_ext_hdr_type * @length: length excluding descriptor - * @ext_payload: payload of the specific extended header - * @hdr: place holder for actual header + * @data: the extended header payload */ struct mei_ext_hdr { u8 type; @@ -279,12 +286,11 @@ struct mei_ext_hdr_vtag { * Extended header iterator functions */ /** - * mei_ext_hdr - extended header iterator begin + * mei_ext_begin - extended header iterator begin * * @meta: meta header of the extended header list * - * Return: - * The first extended header + * Return: The first extended header */ static inline struct mei_ext_hdr *mei_ext_begin(struct mei_ext_meta_hdr *meta) { @@ -305,6 +311,60 @@ static inline bool mei_ext_last(struct mei_ext_meta_hdr *meta, return (u8 *)ext >= (u8 *)meta + sizeof(*meta) + (meta->size * 4); } +struct mei_gsc_sgl { + u32 low; + u32 high; + u32 length; +} __packed; + +#define GSC_HECI_MSG_KERNEL 0 +#define GSC_HECI_MSG_USER 1 + +#define GSC_ADDRESS_TYPE_GTT 0 +#define GSC_ADDRESS_TYPE_PPGTT 1 +#define GSC_ADDRESS_TYPE_PHYSICAL_CONTINUOUS 2 /* max of 64K */ +#define GSC_ADDRESS_TYPE_PHYSICAL_SGL 3 + +/** + * struct mei_ext_hdr_gsc_h2f - extended header: gsc host to firmware interface + * + * @hdr: extended header + * @client_id: GSC_HECI_MSG_KERNEL or GSC_HECI_MSG_USER + * @addr_type: GSC_ADDRESS_TYPE_{GTT, PPGTT, PHYSICAL_CONTINUOUS, PHYSICAL_SGL} + * @fence_id: synchronization marker + * @input_address_count: number of input sgl buffers + * @output_address_count: number of output sgl buffers + * @reserved: reserved + * @sgl: sg list + */ +struct mei_ext_hdr_gsc_h2f { + struct mei_ext_hdr hdr; + u8 client_id; + u8 addr_type; + u32 fence_id; + u8 input_address_count; + u8 output_address_count; + u8 reserved[2]; + struct mei_gsc_sgl sgl[]; +} __packed; + +/** + * struct mei_ext_hdr_gsc_f2h - gsc firmware to host interface + * + * @hdr: extended header + * @client_id: GSC_HECI_MSG_KERNEL or GSC_HECI_MSG_USER + * @reserved: reserved + * @fence_id: synchronization marker + * @written: number of bytes written to firmware + */ +struct mei_ext_hdr_gsc_f2h { + struct mei_ext_hdr hdr; + u8 client_id; + u8 reserved; + u32 fence_id; + u32 written; +} __packed; + /** * mei_ext_next - following extended header on the TLV list * @@ -321,6 +381,21 @@ static inline struct mei_ext_hdr *mei_ext_next(struct mei_ext_hdr *ext) } /** + * mei_ext_hdr_len - get ext header length in bytes + * + * @ext: extend header + * + * Return: extend header length in bytes + */ +static inline u32 mei_ext_hdr_len(const struct mei_ext_hdr *ext) +{ + if (!ext) + return 0; + + return ext->length * sizeof(u32); +} + +/** * struct mei_msg_hdr - MEI BUS Interface Section * * @me_addr: device address @@ -682,6 +757,10 @@ struct hbm_dma_ring_ctrl { /* virtual tag supported */ #define HBM_CAP_VT BIT(0) + +/* gsc extended header support */ +#define HBM_CAP_GSC BIT(1) + /* client dma supported */ #define HBM_CAP_CD BIT(2) |