cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/amd/amdkfd/kfd_module.c

/*
 * Copyright 2014 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include "kfd_priv.h"


#define KFD_DRIVER_AUTHOR	"AMD Inc. and others"


#define KFD_DRIVER_DESC		"Standalone HSA driver for AMD's GPUs"

#define KFD_DRIVER_DATE		"20150421"

#define KFD_DRIVER_MAJOR	0

#define KFD_DRIVER_MINOR	7

#define KFD_DRIVER_PATCHLEVEL	2


static const struct kgd2kfd_calls kgd2kfd = {
	.exit		= kgd2kfd_exit,
	.probe		= kgd2kfd_probe,
	.device_init	= kgd2kfd_device_init,
	.device_exit	= kgd2kfd_device_exit,
	.interrupt	= kgd2kfd_interrupt,
	.suspend	= kgd2kfd_suspend,
	.resume		= kgd2kfd_resume,
};


int sched_policy = KFD_SCHED_POLICY_HWS;
module_param(sched_policy, int, 0444);
MODULE_PARM_DESC(sched_policy,
	"Scheduling policy (0 = HWS (Default), 1 = HWS without over-subscription, 2 = Non-HWS (Used for debugging only)");


int max_num_of_queues_per_device = KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT;
module_param(max_num_of_queues_per_device, int, 0444);
MODULE_PARM_DESC(max_num_of_queues_per_device,
	"Maximum number of supported queues per device (1 = Minimum, 4096 = default)");


int send_sigterm;
module_param(send_sigterm, int, 0444);
MODULE_PARM_DESC(send_sigterm,
	"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");


static int amdkfd_init_completed;


int kgd2kfd_init(unsigned interface_version, const struct kgd2kfd_calls **g2f) { if (!amdkfd_init_completed) return -EPROBE_DEFER; /* * Only one interface version is supported, * no kfd/kgd version skew allowed. */ if (interface_version != KFD_INTERFACE_VERSION) return -EINVAL; *g2f = &kgd2kfd; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Oded Gabbay44100.00%2100.00%
Total44100.00%2100.00%

EXPORT_SYMBOL(kgd2kfd_init);
void kgd2kfd_exit(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Oded Gabbay6100.00%1100.00%
Total6100.00%1100.00%


static int __init kfd_module_init(void) { int err; /* Verify module parameters */ if ((sched_policy < KFD_SCHED_POLICY_HWS) || (sched_policy > KFD_SCHED_POLICY_NO_HWS)) { pr_err("kfd: sched_policy has invalid value\n"); return -1; } /* Verify module parameters */ if ((max_num_of_queues_per_device < 1) || (max_num_of_queues_per_device > KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) { pr_err("kfd: max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n"); return -1; } err = kfd_pasid_init(); if (err < 0) goto err_pasid; err = kfd_chardev_init(); if (err < 0) goto err_ioctl; err = kfd_topology_init(); if (err < 0) goto err_topology; kfd_process_create_wq(); amdkfd_init_completed = 1; dev_info(kfd_device, "Initialized module\n"); return 0; err_topology: kfd_chardev_exit(); err_ioctl: kfd_pasid_exit(); err_pasid: return err; }

Contributors

PersonTokensPropCommitsCommitProp
Oded Gabbay9367.39%571.43%
Ben Goz2618.84%114.29%
Evgeny Pinchuk1913.77%114.29%
Total138100.00%7100.00%


static void __exit kfd_module_exit(void) { amdkfd_init_completed = 0; kfd_process_destroy_wq(); kfd_topology_shutdown(); kfd_chardev_exit(); kfd_pasid_exit(); dev_info(kfd_device, "Removed module\n"); }

Contributors

PersonTokensPropCommitsCommitProp
Oded Gabbay2990.62%375.00%
Evgeny Pinchuk39.38%125.00%
Total32100.00%4100.00%

module_init(kfd_module_init); module_exit(kfd_module_exit); MODULE_AUTHOR(KFD_DRIVER_AUTHOR); MODULE_DESCRIPTION(KFD_DRIVER_DESC); MODULE_LICENSE("GPL and additional rights"); MODULE_VERSION(__stringify(KFD_DRIVER_MAJOR) "." __stringify(KFD_DRIVER_MINOR) "." __stringify(KFD_DRIVER_PATCHLEVEL));

Overall Contributors

PersonTokensPropCommitsCommitProp
Oded Gabbay34783.41%770.00%
Ben Goz4711.30%220.00%
Evgeny Pinchuk225.29%110.00%
Total416100.00%10100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.