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No functionality change. Signed-off-by: Pankaj Gupta Reviewed-by: Frank Li --- Changes from v14 to v15: - removed the se_intance_id structure member variable. - Added dev_ctx to the structure se_clbk_handle, too. - Collected Frank's R-b tag. Note: copied the change logs for v13 to v14, to cover letter. --- drivers/firmware/imx/ele_base_msg.c | 10 ++++----- drivers/firmware/imx/ele_common.c | 43 +++++++++++++++++++++++----------= ---- drivers/firmware/imx/ele_common.h | 6 +++--- drivers/firmware/imx/se_ctrl.c | 29 +++++++++++++++++++++++++ drivers/firmware/imx/se_ctrl.h | 9 ++++++++ 5 files changed, 73 insertions(+), 24 deletions(-) diff --git a/drivers/firmware/imx/ele_base_msg.c b/drivers/firmware/imx/ele= _base_msg.c index c843a5508a9e..9227d083abbb 100644 --- a/drivers/firmware/imx/ele_base_msg.c +++ b/drivers/firmware/imx/ele_base_msg.c @@ -62,7 +62,7 @@ int ele_get_info(struct se_if_priv *priv, struct ele_dev_= info *s_info) tx_msg->data[0] =3D upper_32_bits(get_info_addr); tx_msg->data[1] =3D lower_32_bits(get_info_addr); tx_msg->data[2] =3D sizeof(*s_info); - ret =3D ele_msg_send_rcv(priv, + ret =3D ele_msg_send_rcv(priv->priv_dev_ctx, tx_msg, ELE_GET_INFO_REQ_MSG_SZ, rx_msg, @@ -122,7 +122,7 @@ int ele_ping(struct se_if_priv *priv) return ret; } =20 - ret =3D ele_msg_send_rcv(priv, + ret =3D ele_msg_send_rcv(priv->priv_dev_ctx, tx_msg, ELE_PING_REQ_SZ, rx_msg, @@ -174,7 +174,7 @@ int ele_service_swap(struct se_if_priv *priv, if (!tx_msg->data[4]) return -EINVAL; =20 - ret =3D ele_msg_send_rcv(priv, + ret =3D ele_msg_send_rcv(priv->priv_dev_ctx, tx_msg, ELE_SERVICE_SWAP_REQ_MSG_SZ, rx_msg, @@ -227,7 +227,7 @@ int ele_fw_authenticate(struct se_if_priv *priv, phys_a= ddr_t addr) tx_msg->data[0] =3D lower_32_bits(addr); tx_msg->data[2] =3D addr; =20 - ret =3D ele_msg_send_rcv(priv, + ret =3D ele_msg_send_rcv(priv->priv_dev_ctx, tx_msg, ELE_FW_AUTH_REQ_SZ, rx_msg, @@ -275,7 +275,7 @@ int ele_debug_dump(struct se_if_priv *priv) do { memset(rx_msg, 0x0, ELE_DEBUG_DUMP_RSP_SZ); =20 - ret =3D ele_msg_send_rcv(priv, + ret =3D ele_msg_send_rcv(priv->priv_dev_ctx, tx_msg, ELE_DEBUG_DUMP_REQ_SZ, rx_msg, diff --git a/drivers/firmware/imx/ele_common.c b/drivers/firmware/imx/ele_c= ommon.c index 7573603cdbec..baf83f03c1a0 100644 --- a/drivers/firmware/imx/ele_common.c +++ b/drivers/firmware/imx/ele_common.c @@ -42,7 +42,7 @@ u32 se_get_msg_chksum(u32 *msg, u32 msg_len) return chksum; } =20 -int ele_msg_rcv(struct se_if_priv *priv, struct se_clbk_handle *se_clbk_hd= l) +int ele_msg_rcv(struct se_if_device_ctx *dev_ctx, struct se_clbk_handle *s= e_clbk_hdl) { unsigned long timeout; int ret; @@ -52,8 +52,8 @@ int ele_msg_rcv(struct se_if_priv *priv, struct se_clbk_h= andle *se_clbk_hdl) =20 ret =3D wait_for_completion_interruptible_timeout(&se_clbk_hdl->done, ti= meout); if (ret =3D=3D -ERESTARTSYS) { - if (priv->waiting_rsp_clbk_hdl.rx_msg) { - priv->waiting_rsp_clbk_hdl.signal_rcvd =3D true; + if (dev_ctx->priv->waiting_rsp_clbk_hdl.dev_ctx) { + dev_ctx->priv->waiting_rsp_clbk_hdl.signal_rcvd =3D true; continue; } ret =3D -EINTR; @@ -66,7 +66,7 @@ int ele_msg_rcv(struct se_if_priv *priv, struct se_clbk_h= andle *se_clbk_hdl) return ret; } =20 -int ele_msg_send(struct se_if_priv *priv, +int ele_msg_send(struct se_if_device_ctx *dev_ctx, void *tx_msg, int tx_msg_sz) { @@ -78,16 +78,19 @@ int ele_msg_send(struct se_if_priv *priv, * carried in the message. */ if (header->size << 2 !=3D tx_msg_sz) { - dev_err(priv->dev, - "User buf hdr: 0x%x, sz mismatced with input-sz (%d !=3D %d).", + dev_err(dev_ctx->priv->dev, + "%s: User buf hdr: 0x%x, sz mismatced with input-sz (%d !=3D %d).", + dev_ctx->devname, *(u32 *)header, header->size << 2, tx_msg_sz); return -EINVAL; } =20 - err =3D mbox_send_message(priv->tx_chan, tx_msg); + err =3D mbox_send_message(dev_ctx->priv->tx_chan, tx_msg); if (err < 0) { - dev_err(priv->dev, "Error: mbox_send_message failure.\n"); + dev_err(dev_ctx->priv->dev, + "%s: Error: mbox_send_message failure.", + dev_ctx->devname); return err; } =20 @@ -95,31 +98,35 @@ int ele_msg_send(struct se_if_priv *priv, } =20 /* API used for send/receive blocking call. */ -int ele_msg_send_rcv(struct se_if_priv *priv, +int ele_msg_send_rcv(struct se_if_device_ctx *dev_ctx, void *tx_msg, int tx_msg_sz, void *rx_msg, int exp_rx_msg_sz) { + struct se_if_priv *priv =3D dev_ctx->priv; int err; =20 guard(mutex)(&priv->se_if_cmd_lock); =20 + priv->waiting_rsp_clbk_hdl.dev_ctx =3D dev_ctx; priv->waiting_rsp_clbk_hdl.rx_msg_sz =3D exp_rx_msg_sz; priv->waiting_rsp_clbk_hdl.rx_msg =3D rx_msg; =20 - err =3D ele_msg_send(priv, tx_msg, tx_msg_sz); + err =3D ele_msg_send(dev_ctx, tx_msg, tx_msg_sz); if (err < 0) return err; =20 - err =3D ele_msg_rcv(priv, &priv->waiting_rsp_clbk_hdl); + err =3D ele_msg_rcv(dev_ctx, &priv->waiting_rsp_clbk_hdl); =20 if (priv->waiting_rsp_clbk_hdl.signal_rcvd) { err =3D -EINTR; priv->waiting_rsp_clbk_hdl.signal_rcvd =3D false; dev_err(priv->dev, - "Err[0x%x]:Interrupted by signal.\n", err); + "%s: Err[0x%x]:Interrupted by signal.\n", + dev_ctx->devname, err); } + priv->waiting_rsp_clbk_hdl.dev_ctx =3D NULL; =20 return err; } @@ -166,7 +173,8 @@ void se_if_rx_callback(struct mbox_client *mbox_cl, voi= d *msg) if (header->tag =3D=3D priv->if_defs->cmd_tag) { se_clbk_hdl =3D &priv->cmd_receiver_clbk_hdl; dev_dbg(dev, - "Selecting cmd receiver for mesg header:0x%x.", + "Selecting cmd receiver:%s for mesg header:0x%x.", + se_clbk_hdl->dev_ctx->devname, *(u32 *)header); =20 /* @@ -176,7 +184,8 @@ void se_if_rx_callback(struct mbox_client *mbox_cl, voi= d *msg) */ if (rx_msg_sz > MAX_NVM_MSG_LEN) { dev_err(dev, - "CMD-RCVER NVM: hdr(0x%x) with different sz(%d !=3D %d).\n", + "%s: CMD-RCVER NVM: hdr(0x%x) with different sz(%d !=3D %d).\n", + se_clbk_hdl->dev_ctx->devname, *(u32 *)header, rx_msg_sz, se_clbk_hdl->rx_msg_sz); =20 @@ -187,13 +196,15 @@ void se_if_rx_callback(struct mbox_client *mbox_cl, v= oid *msg) } else if (header->tag =3D=3D priv->if_defs->rsp_tag) { se_clbk_hdl =3D &priv->waiting_rsp_clbk_hdl; dev_dbg(dev, - "Selecting resp waiter for mesg header:0x%x.", + "Selecting resp waiter:%s for mesg header:0x%x.", + se_clbk_hdl->dev_ctx->devname, *(u32 *)header); =20 if (rx_msg_sz !=3D se_clbk_hdl->rx_msg_sz && check_hdr_exception_for_sz(priv, header)) { dev_err(dev, - "Rsp to CMD: hdr(0x%x) with different sz(%d !=3D %d).\n", + "%s: Rsp to CMD: hdr(0x%x) with different sz(%d !=3D %d).\n", + se_clbk_hdl->dev_ctx->devname, *(u32 *)header, rx_msg_sz, se_clbk_hdl->rx_msg_sz); =20 diff --git a/drivers/firmware/imx/ele_common.h b/drivers/firmware/imx/ele_c= ommon.h index cba2c7854455..62c75e149d95 100644 --- a/drivers/firmware/imx/ele_common.h +++ b/drivers/firmware/imx/ele_common.h @@ -13,12 +13,12 @@ #define IMX_ELE_FW_DIR "imx/ele/" =20 u32 se_get_msg_chksum(u32 *msg, u32 msg_len); -int ele_msg_rcv(struct se_if_priv *priv, +int ele_msg_rcv(struct se_if_device_ctx *dev_ctx, struct se_clbk_handle *se_clbk_hdl); -int ele_msg_send(struct se_if_priv *priv, +int ele_msg_send(struct se_if_device_ctx *dev_ctx, void *tx_msg, int tx_msg_sz); -int ele_msg_send_rcv(struct se_if_priv *priv, +int ele_msg_send_rcv(struct se_if_device_ctx *dev_ctx, void *tx_msg, int tx_msg_sz, void *rx_msg, diff --git a/drivers/firmware/imx/se_ctrl.c b/drivers/firmware/imx/se_ctrl.c index 2d885c03a450..a326e07ae547 100644 --- a/drivers/firmware/imx/se_ctrl.c +++ b/drivers/firmware/imx/se_ctrl.c @@ -204,6 +204,29 @@ static int get_se_soc_info(struct se_if_priv *priv, co= nst struct se_soc_info *se return 0; } =20 +static int init_misc_device_context(struct se_if_priv *priv, int ch_id, + struct se_if_device_ctx **new_dev_ctx) +{ + struct se_if_device_ctx *dev_ctx; + int ret =3D 0; + + dev_ctx =3D devm_kzalloc(priv->dev, sizeof(*dev_ctx), GFP_KERNEL); + + if (!dev_ctx) + return -ENOMEM; + + dev_ctx->devname =3D devm_kasprintf(priv->dev, GFP_KERNEL, "%s0_ch%d", + get_se_if_name(priv->if_defs->se_if_type), + ch_id); + if (!dev_ctx->devname) + return -ENOMEM; + + dev_ctx->priv =3D priv; + *new_dev_ctx =3D dev_ctx; + + return ret; +} + /* interface for managed res to free a mailbox channel */ static void if_mbox_free_channel(void *mbox_chan) { @@ -333,6 +356,12 @@ static int se_if_probe(struct platform_device *pdev) "Failed to init reserved memory region."); } =20 + ret =3D init_misc_device_context(priv, 0, &priv->priv_dev_ctx); + if (ret) + return dev_err_probe(dev, ret, + "Failed[0x%x] to create device contexts.", + ret); + if (if_node->if_defs.se_if_type =3D=3D SE_TYPE_ID_HSM) { ret =3D get_se_soc_info(priv, se_info); if (ret) diff --git a/drivers/firmware/imx/se_ctrl.h b/drivers/firmware/imx/se_ctrl.h index b15c4022a46c..b5e7705e2f26 100644 --- a/drivers/firmware/imx/se_ctrl.h +++ b/drivers/firmware/imx/se_ctrl.h @@ -19,6 +19,7 @@ #define MESSAGING_VERSION_7 0x7 =20 struct se_clbk_handle { + struct se_if_device_ctx *dev_ctx; struct completion done; bool signal_rcvd; u32 rx_msg_sz; @@ -36,6 +37,12 @@ struct se_imem_buf { u32 state; }; =20 +/* Private struct for each char device instance. */ +struct se_if_device_ctx { + struct se_if_priv *priv; + const char *devname; +}; + /* Header of the messages exchange with the EdgeLock Enclave */ struct se_msg_hdr { u8 ver; @@ -80,6 +87,8 @@ struct se_if_priv { =20 struct gen_pool *mem_pool; const struct se_if_defines *if_defs; + + struct se_if_device_ctx *priv_dev_ctx; }; =20 char *get_se_if_name(u8 se_if_id); --=20 2.43.0