Release 4.16 drivers/staging/fsl-mc/bus/fsl-mc-private.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Freescale Management Complex (MC) bus private declarations
*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
*/
#ifndef _FSL_MC_PRIVATE_H_
#define _FSL_MC_PRIVATE_H_
#include "../include/mc.h"
#include <linux/mutex.h>
/*
* Data Path Management Complex (DPMNG) General API
*/
/* DPMNG command versioning */
#define DPMNG_CMD_BASE_VERSION 1
#define DPMNG_CMD_ID_OFFSET 4
#define DPMNG_CMD(id) (((id) << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION)
/* DPMNG command IDs */
#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831)
struct dpmng_rsp_get_version {
__le32 revision;
__le32 version_major;
__le32 version_minor;
};
/*
* Data Path Management Command Portal (DPMCP) API
*/
/* Minimal supported DPMCP Version */
#define DPMCP_MIN_VER_MAJOR 3
#define DPMCP_MIN_VER_MINOR 0
/* DPMCP command versioning */
#define DPMCP_CMD_BASE_VERSION 1
#define DPMCP_CMD_ID_OFFSET 4
#define DPMCP_CMD(id) (((id) << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION)
/* DPMCP command IDs */
#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800)
#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b)
#define DPMCP_CMDID_RESET DPMCP_CMD(0x005)
struct dpmcp_cmd_open {
__le32 dpmcp_id;
};
/*
* Initialization and runtime control APIs for DPMCP
*/
int dpmcp_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int dpmcp_id,
u16 *token);
int dpmcp_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
int dpmcp_reset(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
/*
* Data Path Resource Container (DPRC) API
*/
/* Minimal supported DPRC Version */
#define DPRC_MIN_VER_MAJOR 6
#define DPRC_MIN_VER_MINOR 0
/* DPRC command versioning */
#define DPRC_CMD_BASE_VERSION 1
#define DPRC_CMD_ID_OFFSET 4
#define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION)
/* DPRC command IDs */
#define DPRC_CMDID_CLOSE DPRC_CMD(0x800)
#define DPRC_CMDID_OPEN DPRC_CMD(0x805)
#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05)
#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004)
#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010)
#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012)
#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014)
#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016)
#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017)
#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830)
#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159)
#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A)
#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E)
#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F)
struct dprc_cmd_open {
__le32 container_id;
};
struct dprc_cmd_set_irq {
/* cmd word 0 */
__le32 irq_val;
u8 irq_index;
u8 pad[3];
/* cmd word 1 */
__le64 irq_addr;
/* cmd word 2 */
__le32 irq_num;
};
#define DPRC_ENABLE 0x1
struct dprc_cmd_set_irq_enable {
u8 enable;
u8 pad[3];
u8 irq_index;
};
struct dprc_cmd_set_irq_mask {
__le32 mask;
u8 irq_index;
};
struct dprc_cmd_get_irq_status {
__le32 status;
u8 irq_index;
};
struct dprc_rsp_get_irq_status {
__le32 status;
};
struct dprc_cmd_clear_irq_status {
__le32 status;
u8 irq_index;
};
struct dprc_rsp_get_attributes {
/* response word 0 */
__le32 container_id;
__le16 icid;
__le16 pad;
/* response word 1 */
__le32 options;
__le32 portal_id;
};
struct dprc_rsp_get_obj_count {
__le32 pad;
__le32 obj_count;
};
struct dprc_cmd_get_obj {
__le32 obj_index;
};
struct dprc_rsp_get_obj {
/* response word 0 */
__le32 pad0;
__le32 id;
/* response word 1 */
__le16 vendor;
u8 irq_count;
u8 region_count;
__le32 state;
/* response word 2 */
__le16 version_major;
__le16 version_minor;
__le16 flags;
__le16 pad1;
/* response word 3-4 */
u8 type[16];
/* response word 5-6 */
u8 label[16];
};
struct dprc_cmd_get_obj_region {
/* cmd word 0 */
__le32 obj_id;
__le16 pad0;
u8 region_index;
u8 pad1;
/* cmd word 1-2 */
__le64 pad2[2];
/* cmd word 3-4 */
u8 obj_type[16];
};
struct dprc_rsp_get_obj_region {
/* response word 0 */
__le64 pad;
/* response word 1 */
__le64 base_addr;
/* response word 2 */
__le32 size;
};
struct dprc_cmd_set_obj_irq {
/* cmd word 0 */
__le32 irq_val;
u8 irq_index;
u8 pad[3];
/* cmd word 1 */
__le64 irq_addr;
/* cmd word 2 */
__le32 irq_num;
__le32 obj_id;
/* cmd word 3-4 */
u8 obj_type[16];
};
/*
* DPRC API for managing and querying DPAA resources
*/
int dprc_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int container_id,
u16 *token);
int dprc_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
/* DPRC IRQ events */
/* IRQ event - Indicates that a new object added to the container */
#define DPRC_IRQ_EVENT_OBJ_ADDED 0x00000001
/* IRQ event - Indicates that an object was removed from the container */
#define DPRC_IRQ_EVENT_OBJ_REMOVED 0x00000002
/*
* IRQ event - Indicates that one of the descendant containers that opened by
* this container is destroyed
*/
#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010
/*
* IRQ event - Indicates that on one of the container's opened object is
* destroyed
*/
#define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020
/* Irq event - Indicates that object is created at the container */
#define DPRC_IRQ_EVENT_OBJ_CREATED 0x00000040
/**
* struct dprc_irq_cfg - IRQ configuration
* @paddr: Address that must be written to signal a message-based interrupt
* @val: Value to write into irq_addr address
* @irq_num: A user defined number associated with this IRQ
*/
struct dprc_irq_cfg {
phys_addr_t paddr;
u32 val;
int irq_num;
};
int dprc_set_irq(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
struct dprc_irq_cfg *irq_cfg);
int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u8 en);
int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 mask);
int dprc_get_irq_status(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 *status);
int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
u8 irq_index,
u32 status);
/**
* struct dprc_attributes - Container attributes
* @container_id: Container's ID
* @icid: Container's ICID
* @portal_id: Container's portal ID
* @options: Container's options as set at container's creation
*/
struct dprc_attributes {
int container_id;
u16 icid;
int portal_id;
u64 options;
};
int dprc_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dprc_attributes *attributes);
int dprc_get_obj_count(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int *obj_count);
int dprc_get_obj(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int obj_index,
struct fsl_mc_obj_desc *obj_desc);
int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
char *obj_type,
int obj_id,
u8 irq_index,
struct dprc_irq_cfg *irq_cfg);
/* Region flags */
/* Cacheable - Indicates that region should be mapped as cacheable */
#define DPRC_REGION_CACHEABLE 0x00000001
/**
* enum dprc_region_type - Region type
* @DPRC_REGION_TYPE_MC_PORTAL: MC portal region
* @DPRC_REGION_TYPE_QBMAN_PORTAL: Qbman portal region
*/
enum dprc_region_type {
DPRC_REGION_TYPE_MC_PORTAL,
DPRC_REGION_TYPE_QBMAN_PORTAL
};
/**
* struct dprc_region_desc - Mappable region descriptor
* @base_offset: Region offset from region's base address.
* For DPMCP and DPRC objects, region base is offset from SoC MC portals
* base address; For DPIO, region base is offset from SoC QMan portals
* base address
* @size: Region size (in bytes)
* @flags: Region attributes
* @type: Portal region type
*/
struct dprc_region_desc {
u32 base_offset;
u32 size;
u32 flags;
enum dprc_region_type type;
};
int dprc_get_obj_region(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
char *obj_type,
int obj_id,
u8 region_index,
struct dprc_region_desc *region_desc);
int dprc_get_api_version(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 *major_ver,
u16 *minor_ver);
int dprc_get_container_id(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int *container_id);
/**
* Maximum number of total IRQs that can be pre-allocated for an MC bus'
* IRQ pool
*/
#define FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS 256
/**
* struct fsl_mc_resource_pool - Pool of MC resources of a given
* type
* @type: type of resources in the pool
* @max_count: maximum number of resources in the pool
* @free_count: number of free resources in the pool
* @mutex: mutex to serialize access to the pool's free list
* @free_list: anchor node of list of free resources in the pool
* @mc_bus: pointer to the MC bus that owns this resource pool
*/
struct fsl_mc_resource_pool {
enum fsl_mc_pool_type type;
int max_count;
int free_count;
struct mutex mutex; /* serializes access to free_list */
struct list_head free_list;
struct fsl_mc_bus *mc_bus;
};
/**
* struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
* @mc_dev: fsl-mc device for the bus device itself.
* @resource_pools: array of resource pools (one pool per resource type)
* for this MC bus. These resources represent allocatable entities
* from the physical DPRC.
* @irq_resources: Pointer to array of IRQ objects for the IRQ pool
* @scan_mutex: Serializes bus scanning
* @dprc_attr: DPRC attributes
*/
struct fsl_mc_bus {
struct fsl_mc_device mc_dev;
struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES];
struct fsl_mc_device_irq *irq_resources;
struct mutex scan_mutex; /* serializes bus scanning */
struct dprc_attributes dprc_attr;
};
#define to_fsl_mc_bus(_mc_dev) \
container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
int __must_check fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc,
struct fsl_mc_io *mc_io,
struct device *parent_dev,
struct fsl_mc_device **new_mc_dev);
void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
int __init dprc_driver_init(void);
void dprc_driver_exit(void);
int __init fsl_mc_allocator_driver_init(void);
void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
enum fsl_mc_pool_type pool_type,
struct fsl_mc_resource
**new_resource);
void fsl_mc_resource_free(struct fsl_mc_resource *resource);
int fsl_mc_msi_domain_alloc_irqs(struct device *dev,
unsigned int irq_count);
void fsl_mc_msi_domain_free_irqs(struct device *dev);
int fsl_mc_find_msi_domain(struct device *mc_platform_dev,
struct irq_domain **mc_msi_domain);
int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus,
unsigned int irq_count);
void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus);
int __must_check fsl_create_mc_io(struct device *dev,
phys_addr_t mc_portal_phys_addr,
u32 mc_portal_size,
struct fsl_mc_device *dpmcp_dev,
u32 flags, struct fsl_mc_io **new_mc_io);
void fsl_destroy_mc_io(struct fsl_mc_io *mc_io);
bool fsl_mc_is_root_dprc(struct device *dev);
#endif /* _FSL_MC_PRIVATE_H_ */
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