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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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d8ccb6d873
The region size reported by the firmware for mc and software portals was less than allocated by the hardware. This may be problematic when mmapping the region in user space because the region size is less than page size. However the size as reserved by the hardware is 64K. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-14-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
614 lines
14 KiB
C
614 lines
14 KiB
C
/* 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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/*
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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 pad;
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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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__le32 pad2;
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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 */
|
|
__le64 user_ctx;
|
|
};
|
|
|
|
|
|
/**
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|
* 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_allocator_driver_exit(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);
|
|
|
|
struct irq_domain *fsl_mc_find_msi_domain(struct device *dev);
|
|
|
|
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);
|
|
|
|
void fsl_mc_get_root_dprc(struct device *dev,
|
|
struct device **root_dprc_dev);
|
|
|
|
struct fsl_mc_device *fsl_mc_device_lookup(struct fsl_mc_obj_desc *obj_desc,
|
|
struct fsl_mc_device *mc_bus_dev);
|
|
|
|
#endif /* _FSL_MC_PRIVATE_H_ */
|