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_'
}
/**
- * 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);
-}
-
-/**
* dpbp_get_attributes - Retrieve DPBP attributes.
*
* @mc_io: Pointer to MC portal's I/O object
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_'
projects / platform / kernel / linux-starfive.git / commitdiff