2 * Copyright 2014 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
24 #include <linux/types.h>
25 #include <linux/kernel.h>
26 #include <linux/log2.h>
27 #include <linux/sched.h>
28 #include <linux/slab.h>
29 #include <linux/mutex.h>
30 #include <linux/device.h>
32 #include "kfd_pm4_headers.h"
33 #include "kfd_pm4_headers_diq.h"
34 #include "kfd_kernel_queue.h"
36 #include "kfd_pm4_opcodes.h"
38 #include "kfd_dbgmgr.h"
39 #include "kfd_dbgdev.h"
40 #include "kfd_device_queue_manager.h"
41 #include "../../radeon/cik_reg.h"
43 static void dbgdev_address_watch_disable_nodiq(struct kfd_dev *dev)
45 BUG_ON(!dev || !dev->kfd2kgd);
47 dev->kfd2kgd->address_watch_disable(dev->kgd);
50 static int dbgdev_register_nodiq(struct kfd_dbgdev *dbgdev)
55 * no action is needed in this case,
56 * just make sure diq will not be used
64 static int dbgdev_register_diq(struct kfd_dbgdev *dbgdev)
66 struct queue_properties properties;
68 struct kernel_queue *kq = NULL;
71 BUG_ON(!dbgdev || !dbgdev->pqm || !dbgdev->dev);
73 status = pqm_create_queue(dbgdev->pqm, dbgdev->dev, NULL,
74 &properties, 0, KFD_QUEUE_TYPE_DIQ,
78 pr_err("amdkfd: Failed to create DIQ\n");
82 pr_debug("DIQ Created with queue id: %d\n", qid);
84 kq = pqm_get_kernel_queue(dbgdev->pqm, qid);
87 pr_err("amdkfd: Error getting DIQ\n");
88 pqm_destroy_queue(dbgdev->pqm, qid);
97 static int dbgdev_unregister_nodiq(struct kfd_dbgdev *dbgdev)
99 BUG_ON(!dbgdev || !dbgdev->dev);
101 /* disable watch address */
102 dbgdev_address_watch_disable_nodiq(dbgdev->dev);
106 static int dbgdev_unregister_diq(struct kfd_dbgdev *dbgdev)
108 /* todo - disable address watch */
111 BUG_ON(!dbgdev || !dbgdev->pqm || !dbgdev->kq);
113 status = pqm_destroy_queue(dbgdev->pqm,
114 dbgdev->kq->queue->properties.queue_id);
120 void kfd_dbgdev_init(struct kfd_dbgdev *pdbgdev, struct kfd_dev *pdev,
121 enum DBGDEV_TYPE type)
123 BUG_ON(!pdbgdev || !pdev);
127 pdbgdev->type = type;
131 case DBGDEV_TYPE_NODIQ:
132 pdbgdev->dbgdev_register = dbgdev_register_nodiq;
133 pdbgdev->dbgdev_unregister = dbgdev_unregister_nodiq;
135 case DBGDEV_TYPE_DIQ:
137 pdbgdev->dbgdev_register = dbgdev_register_diq;
138 pdbgdev->dbgdev_unregister = dbgdev_unregister_diq;