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e8d5a43b9f
add endpoint mutex to nvsciipc KMD JIRA NVIPC-3427 Change-Id: I1644213f59d24da4c4eeb693fa3016904388a26b Signed-off-by: Joshua Cha <joshuac@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3309493 Reviewed-by: Suneel Kumar Pemmineti <spemmineti@nvidia.com> Reviewed-by: Simon Je <sje@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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#ifndef __NVSCIIPC_KERNEL_H__
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#define __NVSCIIPC_KERNEL_H__
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#include <linux/nvscierror.h>
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#include <linux/nvsciipc_interface.h>
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#include <uapi/linux/nvsciipc_ioctl.h>
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#define ERR(...) pr_err("nvsciipc: " __VA_ARGS__)
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#define INFO(...) pr_info("nvsciipc: " __VA_ARGS__)
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#define DBG(...) pr_debug("nvsciipc: " __VA_ARGS__)
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#define MODULE_NAME "nvsciipc"
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#define MAX_NAME_SIZE 64
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#define NVSCIIPC_BACKEND_ITC 0U
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#define NVSCIIPC_BACKEND_IPC 1U
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#define NVSCIIPC_BACKEND_IVC 2U
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#define NVSCIIPC_BACKEND_C2C_PCIE 3U
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#define NVSCIIPC_BACKEND_C2C_NPM 4U
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#define NVSCIIPC_BACKEND_UNKNOWN 0xFFFFFFFFU
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struct nvsciipc_res_stat {
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int reserved;
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pid_t owner_pid;
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};
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struct nvsciipc {
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struct device *dev;
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dev_t dev_t;
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struct class *nvsciipc_class;
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struct cdev cdev;
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struct device *device;
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char device_name[MAX_NAME_SIZE];
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int num_eps;
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struct nvsciipc_config_entry **db;
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volatile bool set_db_f;
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struct nvsciipc_res_stat **stat;
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};
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struct vuid_bitfield_64 {
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uint64_t index : 16;
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uint64_t type : 4;
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uint64_t vmid : 8;
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uint64_t socid : 28;
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uint64_t reserved : 8;
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};
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union nvsciipc_vuid_64 {
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uint64_t value;
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struct vuid_bitfield_64 bit;
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};
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/***********************************************************************/
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/********************* Functions declaration ***************************/
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/***********************************************************************/
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static void nvsciipc_cleanup(struct nvsciipc *ctx);
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static int nvsciipc_dev_open(struct inode *inode, struct file *filp);
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static int nvsciipc_dev_release(struct inode *inode, struct file *filp);
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long nvsciipc_dev_ioctl(struct file *filp, unsigned int cmd,
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unsigned long arg);
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static int nvsciipc_ioctl_get_vuid(struct nvsciipc *ctx, unsigned int cmd,
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unsigned long arg);
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static int nvsciipc_ioctl_set_db(struct nvsciipc *ctx, unsigned int cmd,
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unsigned long arg);
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#endif /* __NVSCIIPC_KERNEL_H__ */
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