diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c')
-rw-r--r-- | kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c new file mode 100644 index 000000000..4e0a68f13 --- /dev/null +++ b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c @@ -0,0 +1,138 @@ +/* + * 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 "20150122" +#define KFD_DRIVER_MAJOR 0 +#define KFD_DRIVER_MINOR 7 +#define KFD_DRIVER_PATCHLEVEL 1 + +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)"); + +bool kgd2kfd_init(unsigned interface_version, const struct kgd2kfd_calls **g2f) +{ + /* + * Only one interface version is supported, + * no kfd/kgd version skew allowed. + */ + if (interface_version != KFD_INTERFACE_VERSION) + return false; + + *g2f = &kgd2kfd; + + return true; +} +EXPORT_SYMBOL(kgd2kfd_init); + +void kgd2kfd_exit(void) +{ +} + +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(); + + dev_info(kfd_device, "Initialized module\n"); + + return 0; + +err_topology: + kfd_chardev_exit(); +err_ioctl: + kfd_pasid_exit(); +err_pasid: + return err; +} + +static void __exit kfd_module_exit(void) +{ + kfd_process_destroy_wq(); + kfd_topology_shutdown(); + kfd_chardev_exit(); + kfd_pasid_exit(); + dev_info(kfd_device, "Removed module\n"); +} + +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)); |