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664 lines
16 KiB
664 lines
16 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Freescale Management Complex (MC) bus private declarations |
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* |
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* Copyright (C) 2016 Freescale Semiconductor, Inc. |
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* |
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*/ |
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#ifndef _FSL_MC_PRIVATE_H_ |
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#define _FSL_MC_PRIVATE_H_ |
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#include <linux/fsl/mc.h> |
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#include <linux/mutex.h> |
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#include <linux/ioctl.h> |
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#include <linux/miscdevice.h> |
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/* |
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* Data Path Management Complex (DPMNG) General API |
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*/ |
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/* DPMNG command versioning */ |
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#define DPMNG_CMD_BASE_VERSION 1 |
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#define DPMNG_CMD_ID_OFFSET 4 |
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#define DPMNG_CMD(id) (((id) << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION) |
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/* DPMNG command IDs */ |
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#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831) |
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struct dpmng_rsp_get_version { |
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__le32 revision; |
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__le32 version_major; |
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__le32 version_minor; |
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}; |
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/* |
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* Data Path Management Command Portal (DPMCP) API |
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*/ |
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/* Minimal supported DPMCP Version */ |
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#define DPMCP_MIN_VER_MAJOR 3 |
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#define DPMCP_MIN_VER_MINOR 0 |
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/* DPMCP command versioning */ |
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#define DPMCP_CMD_BASE_VERSION 1 |
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#define DPMCP_CMD_ID_OFFSET 4 |
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#define DPMCP_CMD(id) (((id) << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION) |
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/* DPMCP command IDs */ |
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#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800) |
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#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b) |
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#define DPMCP_CMDID_RESET DPMCP_CMD(0x005) |
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struct dpmcp_cmd_open { |
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__le32 dpmcp_id; |
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}; |
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/* |
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* Initialization and runtime control APIs for DPMCP |
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*/ |
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int dpmcp_open(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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int dpmcp_id, |
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u16 *token); |
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int dpmcp_close(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token); |
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int dpmcp_reset(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token); |
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/* |
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* Data Path Resource Container (DPRC) API |
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*/ |
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/* Minimal supported DPRC Version */ |
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#define DPRC_MIN_VER_MAJOR 6 |
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#define DPRC_MIN_VER_MINOR 0 |
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/* DPRC command versioning */ |
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#define DPRC_CMD_BASE_VERSION 1 |
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#define DPRC_CMD_2ND_VERSION 2 |
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#define DPRC_CMD_3RD_VERSION 3 |
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#define DPRC_CMD_ID_OFFSET 4 |
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#define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) |
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#define DPRC_CMD_V2(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_2ND_VERSION) |
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#define DPRC_CMD_V3(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_3RD_VERSION) |
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/* DPRC command IDs */ |
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#define DPRC_CMDID_CLOSE DPRC_CMD(0x800) |
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#define DPRC_CMDID_OPEN DPRC_CMD(0x805) |
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#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05) |
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#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004) |
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#define DPRC_CMDID_RESET_CONT DPRC_CMD(0x005) |
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#define DPRC_CMDID_RESET_CONT_V2 DPRC_CMD_V2(0x005) |
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#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010) |
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#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012) |
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#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014) |
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#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016) |
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#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017) |
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#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830) |
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#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159) |
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#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) |
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#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) |
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#define DPRC_CMDID_GET_OBJ_REG_V2 DPRC_CMD_V2(0x15E) |
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#define DPRC_CMDID_GET_OBJ_REG_V3 DPRC_CMD_V3(0x15E) |
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#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) |
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#define DPRC_CMDID_GET_CONNECTION DPRC_CMD(0x16C) |
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struct dprc_cmd_open { |
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__le32 container_id; |
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}; |
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struct dprc_cmd_reset_container { |
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__le32 child_container_id; |
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__le32 options; |
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}; |
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struct dprc_cmd_set_irq { |
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/* cmd word 0 */ |
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__le32 irq_val; |
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u8 irq_index; |
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u8 pad[3]; |
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/* cmd word 1 */ |
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__le64 irq_addr; |
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/* cmd word 2 */ |
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__le32 irq_num; |
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}; |
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#define DPRC_ENABLE 0x1 |
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struct dprc_cmd_set_irq_enable { |
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u8 enable; |
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u8 pad[3]; |
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u8 irq_index; |
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}; |
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struct dprc_cmd_set_irq_mask { |
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__le32 mask; |
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u8 irq_index; |
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}; |
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struct dprc_cmd_get_irq_status { |
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__le32 status; |
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u8 irq_index; |
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}; |
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struct dprc_rsp_get_irq_status { |
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__le32 status; |
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}; |
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struct dprc_cmd_clear_irq_status { |
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__le32 status; |
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u8 irq_index; |
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}; |
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struct dprc_rsp_get_attributes { |
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/* response word 0 */ |
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__le32 container_id; |
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__le32 icid; |
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/* response word 1 */ |
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__le32 options; |
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__le32 portal_id; |
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}; |
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struct dprc_rsp_get_obj_count { |
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__le32 pad; |
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__le32 obj_count; |
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}; |
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struct dprc_cmd_get_obj { |
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__le32 obj_index; |
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}; |
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struct dprc_rsp_get_obj { |
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/* response word 0 */ |
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__le32 pad0; |
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__le32 id; |
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/* response word 1 */ |
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__le16 vendor; |
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u8 irq_count; |
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u8 region_count; |
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__le32 state; |
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/* response word 2 */ |
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__le16 version_major; |
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__le16 version_minor; |
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__le16 flags; |
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__le16 pad1; |
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/* response word 3-4 */ |
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u8 type[16]; |
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/* response word 5-6 */ |
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u8 label[16]; |
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}; |
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struct dprc_cmd_get_obj_region { |
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/* cmd word 0 */ |
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__le32 obj_id; |
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__le16 pad0; |
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u8 region_index; |
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u8 pad1; |
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/* cmd word 1-2 */ |
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__le64 pad2[2]; |
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/* cmd word 3-4 */ |
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u8 obj_type[16]; |
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}; |
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struct dprc_rsp_get_obj_region { |
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/* response word 0 */ |
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__le64 pad0; |
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/* response word 1 */ |
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__le64 base_offset; |
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/* response word 2 */ |
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__le32 size; |
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u8 type; |
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u8 pad2[3]; |
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/* response word 3 */ |
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__le32 flags; |
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__le32 pad3; |
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/* response word 4 */ |
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/* base_addr may be zero if older MC firmware is used */ |
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__le64 base_addr; |
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}; |
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struct dprc_cmd_set_obj_irq { |
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/* cmd word 0 */ |
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__le32 irq_val; |
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u8 irq_index; |
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u8 pad[3]; |
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/* cmd word 1 */ |
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__le64 irq_addr; |
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/* cmd word 2 */ |
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__le32 irq_num; |
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__le32 obj_id; |
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/* cmd word 3-4 */ |
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u8 obj_type[16]; |
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}; |
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struct dprc_cmd_get_connection { |
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__le32 ep1_id; |
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__le16 ep1_interface_id; |
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u8 pad[2]; |
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u8 ep1_type[16]; |
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}; |
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struct dprc_rsp_get_connection { |
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__le64 pad[3]; |
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__le32 ep2_id; |
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__le16 ep2_interface_id; |
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__le16 pad1; |
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u8 ep2_type[16]; |
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__le32 state; |
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}; |
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/* |
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* DPRC API for managing and querying DPAA resources |
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*/ |
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int dprc_open(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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int container_id, |
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u16 *token); |
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int dprc_close(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token); |
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/* DPRC IRQ events */ |
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/* IRQ event - Indicates that a new object added to the container */ |
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#define DPRC_IRQ_EVENT_OBJ_ADDED 0x00000001 |
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/* IRQ event - Indicates that an object was removed from the container */ |
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#define DPRC_IRQ_EVENT_OBJ_REMOVED 0x00000002 |
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/* |
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* IRQ event - Indicates that one of the descendant containers that opened by |
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* this container is destroyed |
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*/ |
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#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010 |
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/* |
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* IRQ event - Indicates that on one of the container's opened object is |
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* destroyed |
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*/ |
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#define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020 |
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/* Irq event - Indicates that object is created at the container */ |
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#define DPRC_IRQ_EVENT_OBJ_CREATED 0x00000040 |
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/** |
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* struct dprc_irq_cfg - IRQ configuration |
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* @paddr: Address that must be written to signal a message-based interrupt |
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* @val: Value to write into irq_addr address |
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* @irq_num: A user defined number associated with this IRQ |
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*/ |
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struct dprc_irq_cfg { |
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phys_addr_t paddr; |
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u32 val; |
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int irq_num; |
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}; |
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int dprc_set_irq(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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u8 irq_index, |
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struct dprc_irq_cfg *irq_cfg); |
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int dprc_set_irq_enable(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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u8 irq_index, |
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u8 en); |
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int dprc_set_irq_mask(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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u8 irq_index, |
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u32 mask); |
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int dprc_get_irq_status(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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u8 irq_index, |
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u32 *status); |
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int dprc_clear_irq_status(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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u8 irq_index, |
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u32 status); |
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/** |
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* struct dprc_attributes - Container attributes |
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* @container_id: Container's ID |
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* @icid: Container's ICID |
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* @portal_id: Container's portal ID |
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* @options: Container's options as set at container's creation |
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*/ |
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struct dprc_attributes { |
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int container_id; |
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u32 icid; |
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int portal_id; |
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u64 options; |
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}; |
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int dprc_get_attributes(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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struct dprc_attributes *attributes); |
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int dprc_get_obj_count(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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int *obj_count); |
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int dprc_get_obj(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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int obj_index, |
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struct fsl_mc_obj_desc *obj_desc); |
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int dprc_set_obj_irq(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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char *obj_type, |
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int obj_id, |
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u8 irq_index, |
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struct dprc_irq_cfg *irq_cfg); |
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/** |
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* enum dprc_region_type - Region type |
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* @DPRC_REGION_TYPE_MC_PORTAL: MC portal region |
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* @DPRC_REGION_TYPE_QBMAN_PORTAL: Qbman portal region |
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*/ |
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enum dprc_region_type { |
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DPRC_REGION_TYPE_MC_PORTAL, |
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DPRC_REGION_TYPE_QBMAN_PORTAL, |
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DPRC_REGION_TYPE_QBMAN_MEM_BACKED_PORTAL |
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}; |
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/** |
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* struct dprc_region_desc - Mappable region descriptor |
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* @base_offset: Region offset from region's base address. |
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* For DPMCP and DPRC objects, region base is offset from SoC MC portals |
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* base address; For DPIO, region base is offset from SoC QMan portals |
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* base address |
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* @size: Region size (in bytes) |
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* @flags: Region attributes |
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* @type: Portal region type |
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*/ |
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struct dprc_region_desc { |
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u32 base_offset; |
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u32 size; |
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u32 flags; |
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enum dprc_region_type type; |
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u64 base_address; |
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}; |
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int dprc_get_obj_region(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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char *obj_type, |
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int obj_id, |
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u8 region_index, |
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struct dprc_region_desc *region_desc); |
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int dprc_get_api_version(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 *major_ver, |
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u16 *minor_ver); |
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int dprc_get_container_id(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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int *container_id); |
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/** |
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* struct dprc_endpoint - Endpoint description for link connect/disconnect |
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* operations |
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* @type: Endpoint object type: NULL terminated string |
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* @id: Endpoint object ID |
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* @if_id: Interface ID; should be set for endpoints with multiple |
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* interfaces ("dpsw", "dpdmux"); for others, always set to 0 |
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*/ |
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struct dprc_endpoint { |
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char type[16]; |
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int id; |
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u16 if_id; |
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}; |
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int dprc_get_connection(struct fsl_mc_io *mc_io, |
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u32 cmd_flags, |
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u16 token, |
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const struct dprc_endpoint *endpoint1, |
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struct dprc_endpoint *endpoint2, |
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int *state); |
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/* |
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* Data Path Buffer Pool (DPBP) API |
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*/ |
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/* DPBP Version */ |
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#define DPBP_VER_MAJOR 3 |
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#define DPBP_VER_MINOR 2 |
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/* Command versioning */ |
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#define DPBP_CMD_BASE_VERSION 1 |
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#define DPBP_CMD_ID_OFFSET 4 |
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#define DPBP_CMD(id) (((id) << DPBP_CMD_ID_OFFSET) | DPBP_CMD_BASE_VERSION) |
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/* Command IDs */ |
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#define DPBP_CMDID_CLOSE DPBP_CMD(0x800) |
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#define DPBP_CMDID_OPEN DPBP_CMD(0x804) |
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#define DPBP_CMDID_ENABLE DPBP_CMD(0x002) |
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#define DPBP_CMDID_DISABLE DPBP_CMD(0x003) |
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#define DPBP_CMDID_GET_ATTR DPBP_CMD(0x004) |
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#define DPBP_CMDID_RESET DPBP_CMD(0x005) |
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struct dpbp_cmd_open { |
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__le32 dpbp_id; |
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}; |
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#define DPBP_ENABLE 0x1 |
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struct dpbp_rsp_get_attributes { |
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/* response word 0 */ |
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__le16 pad; |
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__le16 bpid; |
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__le32 id; |
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/* response word 1 */ |
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__le16 version_major; |
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__le16 version_minor; |
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}; |
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/* |
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* Data Path Concentrator (DPCON) API |
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*/ |
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/* DPCON Version */ |
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#define DPCON_VER_MAJOR 3 |
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#define DPCON_VER_MINOR 2 |
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/* Command versioning */ |
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#define DPCON_CMD_BASE_VERSION 1 |
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#define DPCON_CMD_ID_OFFSET 4 |
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#define DPCON_CMD(id) (((id) << DPCON_CMD_ID_OFFSET) | DPCON_CMD_BASE_VERSION) |
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/* Command IDs */ |
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#define DPCON_CMDID_CLOSE DPCON_CMD(0x800) |
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#define DPCON_CMDID_OPEN DPCON_CMD(0x808) |
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#define DPCON_CMDID_ENABLE DPCON_CMD(0x002) |
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#define DPCON_CMDID_DISABLE DPCON_CMD(0x003) |
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#define DPCON_CMDID_GET_ATTR DPCON_CMD(0x004) |
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#define DPCON_CMDID_RESET DPCON_CMD(0x005) |
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#define DPCON_CMDID_SET_NOTIFICATION DPCON_CMD(0x100) |
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struct dpcon_cmd_open { |
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__le32 dpcon_id; |
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}; |
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#define DPCON_ENABLE 1 |
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struct dpcon_rsp_get_attr { |
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/* response word 0 */ |
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__le32 id; |
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__le16 qbman_ch_id; |
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u8 num_priorities; |
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u8 pad; |
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}; |
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struct dpcon_cmd_set_notification { |
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/* cmd word 0 */ |
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__le32 dpio_id; |
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u8 priority; |
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u8 pad[3]; |
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/* cmd word 1 */ |
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__le64 user_ctx; |
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}; |
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/** |
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* struct fsl_mc_resource_pool - Pool of MC resources of a given |
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* type |
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* @type: type of resources in the pool |
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* @max_count: maximum number of resources in the pool |
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* @free_count: number of free resources in the pool |
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* @mutex: mutex to serialize access to the pool's free list |
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* @free_list: anchor node of list of free resources in the pool |
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* @mc_bus: pointer to the MC bus that owns this resource pool |
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*/ |
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struct fsl_mc_resource_pool { |
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enum fsl_mc_pool_type type; |
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int max_count; |
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int free_count; |
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struct mutex mutex; /* serializes access to free_list */ |
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struct list_head free_list; |
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struct fsl_mc_bus *mc_bus; |
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}; |
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/** |
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* struct fsl_mc_uapi - information associated with a device file |
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* @misc: struct miscdevice linked to the root dprc |
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* @device: newly created device in /dev |
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* @mutex: mutex lock to serialize the open/release operations |
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* @local_instance_in_use: local MC I/O instance in use or not |
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* @static_mc_io: pointer to the static MC I/O object |
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*/ |
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struct fsl_mc_uapi { |
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struct miscdevice misc; |
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struct device *device; |
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struct mutex mutex; /* serialize open/release operations */ |
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u32 local_instance_in_use; |
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struct fsl_mc_io *static_mc_io; |
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}; |
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/** |
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* struct fsl_mc_bus - logical bus that corresponds to a physical DPRC |
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* @mc_dev: fsl-mc device for the bus device itself. |
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* @resource_pools: array of resource pools (one pool per resource type) |
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* for this MC bus. These resources represent allocatable entities |
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* from the physical DPRC. |
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* @irq_resources: Pointer to array of IRQ objects for the IRQ pool |
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* @scan_mutex: Serializes bus scanning |
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* @dprc_attr: DPRC attributes |
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* @uapi_misc: struct that abstracts the interaction with userspace |
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*/ |
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struct fsl_mc_bus { |
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struct fsl_mc_device mc_dev; |
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struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES]; |
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struct fsl_mc_device_irq *irq_resources; |
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struct mutex scan_mutex; /* serializes bus scanning */ |
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struct dprc_attributes dprc_attr; |
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struct fsl_mc_uapi uapi_misc; |
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int irq_enabled; |
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}; |
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#define to_fsl_mc_bus(_mc_dev) \ |
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container_of(_mc_dev, struct fsl_mc_bus, mc_dev) |
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int __must_check fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc, |
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struct fsl_mc_io *mc_io, |
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struct device *parent_dev, |
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struct fsl_mc_device **new_mc_dev); |
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void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); |
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int __init dprc_driver_init(void); |
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void dprc_driver_exit(void); |
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int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, |
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bool alloc_interrupts); |
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int __init fsl_mc_allocator_driver_init(void); |
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void fsl_mc_allocator_driver_exit(void); |
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void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev); |
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void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev); |
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int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, |
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enum fsl_mc_pool_type pool_type, |
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struct fsl_mc_resource |
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**new_resource); |
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void fsl_mc_resource_free(struct fsl_mc_resource *resource); |
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int fsl_mc_msi_domain_alloc_irqs(struct device *dev, |
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unsigned int irq_count); |
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void fsl_mc_msi_domain_free_irqs(struct device *dev); |
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struct irq_domain *fsl_mc_find_msi_domain(struct device *dev); |
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int __must_check fsl_create_mc_io(struct device *dev, |
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phys_addr_t mc_portal_phys_addr, |
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u32 mc_portal_size, |
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struct fsl_mc_device *dpmcp_dev, |
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u32 flags, struct fsl_mc_io **new_mc_io); |
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void fsl_destroy_mc_io(struct fsl_mc_io *mc_io); |
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bool fsl_mc_is_root_dprc(struct device *dev); |
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void fsl_mc_get_root_dprc(struct device *dev, |
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struct device **root_dprc_dev); |
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struct fsl_mc_device *fsl_mc_device_lookup(struct fsl_mc_obj_desc *obj_desc, |
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struct fsl_mc_device *mc_bus_dev); |
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u16 mc_cmd_hdr_read_cmdid(struct fsl_mc_command *cmd); |
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#ifdef CONFIG_FSL_MC_UAPI_SUPPORT |
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int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus); |
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void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus); |
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#else |
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static inline int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus) |
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{ |
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return 0; |
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} |
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static inline void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus) |
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{ |
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} |
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#endif |
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int disable_dprc_irq(struct fsl_mc_device *mc_dev); |
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int enable_dprc_irq(struct fsl_mc_device *mc_dev); |
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int get_dprc_irq_state(struct fsl_mc_device *mc_dev); |
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#endif /* _FSL_MC_PRIVATE_H_ */
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