From c4eb83660aef549a6a50965ec5f0af9c8306d2e9 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 31 Jan 2020 10:58:12 +0530 Subject: firmware: arm_scmi: Move macros and helpers to common.h Move message header specific macros and helper routines to common.h as they will be used outside of driver.c in a later commit. Signed-off-by: Viresh Kumar Link: https://lore.kernel.org/r/6615db480370719b0a0241447a5f3feb8eea421f.1580448239.git.viresh.kumar@linaro.org Signed-off-by: Sudeep Holla --- drivers/firmware/arm_scmi/common.h | 40 ++++++++++++++++++++++++++++++++++++++ drivers/firmware/arm_scmi/driver.c | 40 -------------------------------------- 2 files changed, 40 insertions(+), 40 deletions(-) (limited to 'drivers/firmware/arm_scmi') diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h index 227934871929..934b5a23f10b 100644 --- a/drivers/firmware/arm_scmi/common.h +++ b/drivers/firmware/arm_scmi/common.h @@ -47,6 +47,19 @@ struct scmi_msg_resp_prot_version { __le16 major_version; }; +#define MSG_ID_MASK GENMASK(7, 0) +#define MSG_XTRACT_ID(hdr) FIELD_GET(MSG_ID_MASK, (hdr)) +#define MSG_TYPE_MASK GENMASK(9, 8) +#define MSG_XTRACT_TYPE(hdr) FIELD_GET(MSG_TYPE_MASK, (hdr)) +#define MSG_TYPE_COMMAND 0 +#define MSG_TYPE_DELAYED_RESP 2 +#define MSG_TYPE_NOTIFICATION 3 +#define MSG_PROTOCOL_ID_MASK GENMASK(17, 10) +#define MSG_XTRACT_PROT_ID(hdr) FIELD_GET(MSG_PROTOCOL_ID_MASK, (hdr)) +#define MSG_TOKEN_ID_MASK GENMASK(27, 18) +#define MSG_XTRACT_TOKEN(hdr) FIELD_GET(MSG_TOKEN_ID_MASK, (hdr)) +#define MSG_TOKEN_MAX (MSG_XTRACT_TOKEN(MSG_TOKEN_ID_MASK) + 1) + /** * struct scmi_msg_hdr - Message(Tx/Rx) header * @@ -67,6 +80,33 @@ struct scmi_msg_hdr { bool poll_completion; }; +/** + * pack_scmi_header() - packs and returns 32-bit header + * + * @hdr: pointer to header containing all the information on message id, + * protocol id and sequence id. + * + * Return: 32-bit packed message header to be sent to the platform. + */ +static inline u32 pack_scmi_header(struct scmi_msg_hdr *hdr) +{ + return FIELD_PREP(MSG_ID_MASK, hdr->id) | + FIELD_PREP(MSG_TOKEN_ID_MASK, hdr->seq) | + FIELD_PREP(MSG_PROTOCOL_ID_MASK, hdr->protocol_id); +} + +/** + * unpack_scmi_header() - unpacks and records message and protocol id + * + * @msg_hdr: 32-bit packed message header sent from the platform + * @hdr: pointer to header to fetch message and protocol id. + */ +static inline void unpack_scmi_header(u32 msg_hdr, struct scmi_msg_hdr *hdr) +{ + hdr->id = MSG_XTRACT_ID(msg_hdr); + hdr->protocol_id = MSG_XTRACT_PROT_ID(msg_hdr); +} + /** * struct scmi_msg - Message(Tx/Rx) structure * diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 978eafb53471..716423063b14 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -32,19 +32,6 @@ #define CREATE_TRACE_POINTS #include -#define MSG_ID_MASK GENMASK(7, 0) -#define MSG_XTRACT_ID(hdr) FIELD_GET(MSG_ID_MASK, (hdr)) -#define MSG_TYPE_MASK GENMASK(9, 8) -#define MSG_XTRACT_TYPE(hdr) FIELD_GET(MSG_TYPE_MASK, (hdr)) -#define MSG_TYPE_COMMAND 0 -#define MSG_TYPE_DELAYED_RESP 2 -#define MSG_TYPE_NOTIFICATION 3 -#define MSG_PROTOCOL_ID_MASK GENMASK(17, 10) -#define MSG_XTRACT_PROT_ID(hdr) FIELD_GET(MSG_PROTOCOL_ID_MASK, (hdr)) -#define MSG_TOKEN_ID_MASK GENMASK(27, 18) -#define MSG_XTRACT_TOKEN(hdr) FIELD_GET(MSG_TOKEN_ID_MASK, (hdr)) -#define MSG_TOKEN_MAX (MSG_XTRACT_TOKEN(MSG_TOKEN_ID_MASK) + 1) - enum scmi_error_codes { SCMI_SUCCESS = 0, /* Success */ SCMI_ERR_SUPPORT = -1, /* Not supported */ @@ -210,33 +197,6 @@ static void scmi_fetch_response(struct scmi_xfer *xfer, memcpy_fromio(xfer->rx.buf, mem->msg_payload + 4, xfer->rx.len); } -/** - * pack_scmi_header() - packs and returns 32-bit header - * - * @hdr: pointer to header containing all the information on message id, - * protocol id and sequence id. - * - * Return: 32-bit packed message header to be sent to the platform. - */ -static inline u32 pack_scmi_header(struct scmi_msg_hdr *hdr) -{ - return FIELD_PREP(MSG_ID_MASK, hdr->id) | - FIELD_PREP(MSG_TOKEN_ID_MASK, hdr->seq) | - FIELD_PREP(MSG_PROTOCOL_ID_MASK, hdr->protocol_id); -} - -/** - * unpack_scmi_header() - unpacks and records message and protocol id - * - * @msg_hdr: 32-bit packed message header sent from the platform - * @hdr: pointer to header to fetch message and protocol id. - */ -static inline void unpack_scmi_header(u32 msg_hdr, struct scmi_msg_hdr *hdr) -{ - hdr->id = MSG_XTRACT_ID(msg_hdr); - hdr->protocol_id = MSG_XTRACT_PROT_ID(msg_hdr); -} - /** * scmi_tx_prepare() - mailbox client callback to prepare for the transfer * -- cgit v1.2.3