diff options
Diffstat (limited to 'drivers/staging/fsl-mc/bus/dpbp.c')
-rw-r--r-- | drivers/staging/fsl-mc/bus/dpbp.c | 452 |
1 files changed, 3 insertions, 449 deletions
diff --git a/drivers/staging/fsl-mc/bus/dpbp.c b/drivers/staging/fsl-mc/bus/dpbp.c index cf4782f6a049..d9e450a6bad6 100644 --- a/drivers/staging/fsl-mc/bus/dpbp.c +++ b/drivers/staging/fsl-mc/bus/dpbp.c @@ -106,77 +106,6 @@ int dpbp_close(struct fsl_mc_io *mc_io, EXPORT_SYMBOL(dpbp_close); /** - * dpbp_create() - Create the DPBP object. - * @mc_io: Pointer to MC portal's I/O object - * @dprc_token: Parent container token; '0' for default container - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @cfg: Configuration structure - * @obj_id: Returned object id; use in subsequent API calls - * - * Create the DPBP object, allocate required resources and - * perform required initialization. - * - * This function accepts an authentication token of a parent - * container that this object should be assigned to and returns - * an object id. This object_id will be used in all subsequent calls to - * this specific object. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_create(struct fsl_mc_io *mc_io, - u16 dprc_token, - u32 cmd_flags, - const struct dpbp_cfg *cfg, - u32 *obj_id) -{ - struct mc_command cmd = { 0 }; - int err; - - (void)(cfg); /* unused */ - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE, - cmd_flags, dprc_token); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - *obj_id = mc_cmd_read_object_id(&cmd); - - return 0; -} - -/** - * dpbp_destroy() - Destroy the DPBP object and release all its resources. - * @mc_io: Pointer to MC portal's I/O object - * @dprc_token: Parent container token; '0' for default container - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @obj_id: ID of DPBP object - * - * Return: '0' on Success; error code otherwise. - */ -int dpbp_destroy(struct fsl_mc_io *mc_io, - u16 dprc_token, - u32 cmd_flags, - u32 obj_id) -{ - struct dpbp_cmd_destroy *cmd_params; - struct mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY, - cmd_flags, dprc_token); - cmd_params = (struct dpbp_cmd_destroy *)cmd.params; - cmd_params->object_id = cpu_to_le32(obj_id); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** * dpbp_enable() - Enable the DPBP. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -254,6 +183,7 @@ int dpbp_is_enabled(struct fsl_mc_io *mc_io, return 0; } +EXPORT_SYMBOL(dpbp_is_enabled); /** * dpbp_reset() - Reset the DPBP, returns the object to initial state. @@ -276,310 +206,7 @@ int dpbp_reset(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } - -/** - * dpbp_set_irq() - Set IRQ information for the DPBP to trigger an interrupt. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: Identifies the interrupt index to configure - * @irq_cfg: IRQ configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dpbp_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq *)cmd.params; - cmd_params->irq_index = irq_index; - cmd_params->irq_val = cpu_to_le32(irq_cfg->val); - cmd_params->irq_addr = cpu_to_le64(irq_cfg->addr); - cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq() - Get IRQ information from the DPBP. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @type: Interrupt type: 0 represents message interrupt - * type (both irq_addr and irq_val are valid) - * @irq_cfg: IRQ attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dpbp_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq *cmd_params; - struct dpbp_rsp_get_irq *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq *)cmd.params; - irq_cfg->val = le32_to_cpu(rsp_params->irq_val); - irq_cfg->addr = le64_to_cpu(rsp_params->irq_addr); - irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num); - *type = le32_to_cpu(rsp_params->type); - - return 0; -} - -/** - * dpbp_set_irq_enable() - Set overall interrupt state. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @en: Interrupt state - enable = 1, disable = 0 - * - * Allows GPP software to control when interrupts are generated. - * Each interrupt can have up to 32 causes. The enable/disable control's the - * overall interrupt state. if the interrupt is disabled no causes will cause - * an interrupt. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq_enable *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq_enable *)cmd.params; - cmd_params->enable = en & DPBP_ENABLE; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq_enable() - Get overall interrupt state - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @en: Returned interrupt state - enable = 1, disable = 0 - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_enable *cmd_params; - struct dpbp_rsp_get_irq_enable *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_enable *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_enable *)cmd.params; - *en = rsp_params->enabled & DPBP_ENABLE; - return 0; -} - -/** - * dpbp_set_irq_mask() - Set interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @mask: Event mask to trigger interrupt; - * each bit: - * 0 = ignore event - * 1 = consider event for asserting IRQ - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq_mask *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq_mask *)cmd.params; - cmd_params->mask = cpu_to_le32(mask); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq_mask() - Get interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @mask: Returned event mask to trigger interrupt - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_mask *cmd_params; - struct dpbp_rsp_get_irq_mask *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_mask *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_mask *)cmd.params; - *mask = le32_to_cpu(rsp_params->mask); - - return 0; -} - -/** - * dpbp_get_irq_status() - Get the current status of any pending interrupts. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @status: Returned interrupts status - one bit per cause: - * 0 = no interrupt pending - * 1 = interrupt pending - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_status *cmd_params; - struct dpbp_rsp_get_irq_status *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(*status); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_status *)cmd.params; - *status = le32_to_cpu(rsp_params->status); - - return 0; -} - -/** - * dpbp_clear_irq_status() - Clear a pending interrupt's status - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @status: Bits to clear (W1C) - one bit per cause: - * 0 = don't change - * 1 = clear status bit - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_clear_irq_status *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_clear_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(status); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} +EXPORT_SYMBOL(dpbp_reset); /** * dpbp_get_attributes - Retrieve DPBP attributes. @@ -619,80 +246,6 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io, EXPORT_SYMBOL(dpbp_get_attributes); /** - * dpbp_set_notifications() - Set notifications towards software - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @cfg: notifications configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_notifications *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_NOTIFICATIONS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_notifications *)cmd.params; - cmd_params->depletion_entry = cpu_to_le32(cfg->depletion_entry); - cmd_params->depletion_exit = cpu_to_le32(cfg->depletion_exit); - cmd_params->surplus_entry = cpu_to_le32(cfg->surplus_entry); - cmd_params->surplus_exit = cpu_to_le32(cfg->surplus_exit); - cmd_params->options = cpu_to_le16(cfg->options); - cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx); - cmd_params->message_iova = cpu_to_le64(cfg->message_iova); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_notifications() - Get the notifications configuration - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @cfg: notifications configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_rsp_get_notifications *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_NOTIFICATIONS, - cmd_flags, - token); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_notifications *)cmd.params; - cfg->depletion_entry = le32_to_cpu(rsp_params->depletion_entry); - cfg->depletion_exit = le32_to_cpu(rsp_params->depletion_exit); - cfg->surplus_entry = le32_to_cpu(rsp_params->surplus_entry); - cfg->surplus_exit = le32_to_cpu(rsp_params->surplus_exit); - cfg->options = le16_to_cpu(rsp_params->options); - cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx); - cfg->message_iova = le64_to_cpu(rsp_params->message_iova); - - return 0; -} - -/** * dpbp_get_api_version - Get Data Path Buffer Pool API version * @mc_io: Pointer to Mc portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -723,3 +276,4 @@ int dpbp_get_api_version(struct fsl_mc_io *mc_io, return 0; } +EXPORT_SYMBOL(dpbp_get_api_version); |