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961 lines
25 KiB
Diff
961 lines
25 KiB
Diff
From e8dd5b8ee227cc60f10073faaa0f74b36aa4f40f Mon Sep 17 00:00:00 2001
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From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
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Date: Mon, 16 Apr 2018 12:26:38 +0300
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Subject: [PATCH] bus: fsl-mc: Some apis are made public for vfio
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Some of the APIs and data-structures are required for VFIO.
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This patch moves dprc.h to public header files.
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Also some APIs of mc-bus are made public for vfio.
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Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
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Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
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---
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drivers/bus/fsl-mc/fsl-mc-allocator.c | 2 +
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drivers/bus/fsl-mc/fsl-mc-bus.c | 5 +-
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drivers/bus/fsl-mc/fsl-mc-private.h | 414 ---------------------------------
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include/linux/fsl/mc.h | 420 ++++++++++++++++++++++++++++++++++
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4 files changed, 425 insertions(+), 416 deletions(-)
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--- a/drivers/bus/fsl-mc/fsl-mc-allocator.c
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+++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c
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@@ -547,6 +547,7 @@ void fsl_mc_init_all_resource_pools(stru
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mutex_init(&res_pool->mutex);
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}
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}
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+EXPORT_SYMBOL_GPL(fsl_mc_init_all_resource_pools);
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static void fsl_mc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev,
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enum fsl_mc_pool_type pool_type)
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@@ -571,6 +572,7 @@ void fsl_mc_cleanup_all_resource_pools(s
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for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++)
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fsl_mc_cleanup_resource_pool(mc_bus_dev, pool_type);
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}
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+EXPORT_SYMBOL_GPL(fsl_mc_cleanup_all_resource_pools);
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/**
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* fsl_mc_allocator_probe - callback invoked when an allocatable device is
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--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
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+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
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@@ -447,8 +447,8 @@ static int mc_get_version(struct fsl_mc_
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/**
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* fsl_mc_get_root_dprc - function to traverse to the root dprc
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*/
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-static void fsl_mc_get_root_dprc(struct device *dev,
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- struct device **root_dprc_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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{
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if (!dev) {
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*root_dprc_dev = NULL;
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@@ -460,6 +460,7 @@ static void fsl_mc_get_root_dprc(struct
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*root_dprc_dev = (*root_dprc_dev)->parent;
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}
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}
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+EXPORT_SYMBOL_GPL(fsl_mc_get_root_dprc);
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static int get_dprc_attr(struct fsl_mc_io *mc_io,
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int container_id, struct dprc_attributes *attr)
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--- a/drivers/bus/fsl-mc/fsl-mc-private.h
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+++ b/drivers/bus/fsl-mc/fsl-mc-private.h
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@@ -10,8 +10,6 @@
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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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@@ -72,339 +70,6 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
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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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-
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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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-
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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_ID_OFFSET 4
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-
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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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-
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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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-
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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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-
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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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-
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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_SET_OBJ_IRQ DPRC_CMD(0x15F)
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-
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-struct dprc_cmd_open {
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- __le32 container_id;
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-};
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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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-};
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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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-
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-#define DPRC_ENABLE 0x1
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-
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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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-
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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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-
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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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-
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-struct dprc_rsp_get_irq_status {
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- __le32 status;
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-};
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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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-
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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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-
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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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-
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-struct dprc_cmd_get_obj {
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- __le32 obj_index;
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-};
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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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-
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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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-
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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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-
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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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-
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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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-
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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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-
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-/* DPRC IRQ events */
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-
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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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-/*
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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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-
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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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-/**
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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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-
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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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-
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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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-
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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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-
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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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-
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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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-/**
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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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-
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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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-
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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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-
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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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-
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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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-/* Region flags */
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-/* Cacheable - Indicates that region should be mapped as cacheable */
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-#define DPRC_REGION_CACHEABLE 0x00000001
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-#define DPRC_REGION_SHAREABLE 0x00000002
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-
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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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-/**
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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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-
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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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-
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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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-
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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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-int dprc_reset_container(struct fsl_mc_io *mc_io,
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- u32 cmd_flags,
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- u16 token,
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- int child_container_id);
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-
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-/*
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* Data Path Buffer Pool (DPBP) API
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*/
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@@ -491,70 +156,6 @@ struct dpcon_cmd_set_notification {
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__le64 user_ctx;
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};
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-/**
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- * Maximum number of total IRQs that can be pre-allocated for an MC bus'
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- * IRQ pool
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- */
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-#define FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS 256
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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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-/**
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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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-/**
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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
|
|
- * @scan_mutex: Serializes bus scanning
|
|
- * @dprc_attr: DPRC attributes
|
|
- * @uapi_misc: struct that abstracts the interaction with userspace
|
|
- */
|
|
-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;
|
|
- struct fsl_mc_uapi uapi_misc;
|
|
-};
|
|
-
|
|
-#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,
|
|
@@ -565,17 +166,10 @@ int __init dprc_driver_init(void);
|
|
|
|
void dprc_driver_exit(void);
|
|
|
|
-int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
|
|
- const char *driver_override,
|
|
- unsigned int *total_irq_count);
|
|
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
|
|
@@ -588,14 +182,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct
|
|
|
|
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,
|
|
--- a/include/linux/fsl/mc.h
|
|
+++ b/include/linux/fsl/mc.h
|
|
@@ -12,6 +12,8 @@
|
|
#include <linux/device.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/interrupt.h>
|
|
+#include <linux/ioctl.h>
|
|
+#include <linux/miscdevice.h>
|
|
#include <uapi/linux/fsl_mc.h>
|
|
|
|
#define FSL_MC_VENDOR_FREESCALE 0x1957
|
|
@@ -49,6 +51,9 @@ struct fsl_mc_driver {
|
|
#define to_fsl_mc_driver(_drv) \
|
|
container_of(_drv, struct fsl_mc_driver, driver)
|
|
|
|
+#define to_fsl_mc_bus(_mc_dev) \
|
|
+ container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
|
|
+
|
|
/**
|
|
* enum fsl_mc_pool_type - Types of allocatable MC bus resources
|
|
*
|
|
@@ -469,6 +474,339 @@ static inline bool is_fsl_mc_bus_dpseci(
|
|
}
|
|
|
|
/*
|
|
+ * 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_2ND_VERSION 2
|
|
+#define DPRC_CMD_ID_OFFSET 4
|
|
+
|
|
+#define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION)
|
|
+#define DPRC_CMD_V2(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_2ND_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_RESET_CONT DPRC_CMD(0x005)
|
|
+
|
|
+#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_GET_OBJ_REG_V2 DPRC_CMD_V2(0x15E)
|
|
+#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F)
|
|
+
|
|
+struct dprc_cmd_open {
|
|
+ __le32 container_id;
|
|
+};
|
|
+
|
|
+struct dprc_cmd_reset_container {
|
|
+ __le32 child_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;
|
|
+ __le32 icid;
|
|
+ /* 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 pad0;
|
|
+ /* response word 1 */
|
|
+ __le64 base_offset;
|
|
+ /* response word 2 */
|
|
+ __le32 size;
|
|
+ u8 type;
|
|
+ u8 pad2[3];
|
|
+ /* response word 3 */
|
|
+ __le32 flags;
|
|
+ __le32 pad3;
|
|
+ /* response word 4 */
|
|
+ /* base_addr may be zero if older MC firmware is used */
|
|
+ __le64 base_addr;
|
|
+};
|
|
+
|
|
+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;
|
|
+ u32 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
|
|
+#define DPRC_REGION_SHAREABLE 0x00000002
|
|
+
|
|
+/**
|
|
+ * 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,
|
|
+ DPRC_REGION_TYPE_QBMAN_MEM_BACKED_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;
|
|
+ u64 base_address;
|
|
+};
|
|
+
|
|
+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);
|
|
+
|
|
+int dprc_reset_container(struct fsl_mc_io *mc_io,
|
|
+ u32 cmd_flags,
|
|
+ u16 token,
|
|
+ int child_container_id);
|
|
+
|
|
+/*
|
|
* Data Path Buffer Pool (DPBP) API
|
|
* Contains initialization APIs and runtime control APIs for DPBP
|
|
*/
|
|
@@ -576,4 +914,86 @@ int dpcon_set_notification(struct fsl_mc
|
|
u16 token,
|
|
struct dpcon_notification_cfg *cfg);
|
|
|
|
+struct irq_domain;
|
|
+struct msi_domain_info;
|
|
+
|
|
+/**
|
|
+ * 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_uapi - information associated with a device file
|
|
+ * @misc: struct miscdevice linked to the root dprc
|
|
+ * @device: newly created device in /dev
|
|
+ * @mutex: mutex lock to serialize the open/release operations
|
|
+ * @local_instance_in_use: local MC I/O instance in use or not
|
|
+ * @static_mc_io: pointer to the static MC I/O object
|
|
+ */
|
|
+struct fsl_mc_uapi {
|
|
+ struct miscdevice misc;
|
|
+ struct device *device;
|
|
+ struct mutex mutex; /* serialize open/release operations */
|
|
+ u32 local_instance_in_use;
|
|
+ struct fsl_mc_io *static_mc_io;
|
|
+};
|
|
+
|
|
+/**
|
|
+ * 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
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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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+};
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+
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+int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
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+ const char *driver_override,
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+ unsigned int *total_irq_count);
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+
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+int fsl_mc_find_msi_domain(struct device *mc_platform_dev,
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+ struct irq_domain **mc_msi_domain);
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+
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+int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus,
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+ unsigned int irq_count);
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+
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+void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus);
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+
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+void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
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+
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+void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
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+
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+void fsl_mc_get_root_dprc(struct device *dev, struct device **root_dprc_dev);
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+
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#endif /* _FSL_MC_H_ */
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