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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c
....@@ -20,108 +20,12 @@
2020  * OTHER DEALINGS IN THE SOFTWARE.
2121  */
2222 
23
-#include <linux/module.h>
2423 #include <linux/sched.h>
25
-#include <linux/moduleparam.h>
2624 #include <linux/device.h>
27
-#include <linux/printk.h>
2825 #include "kfd_priv.h"
26
+#include "amdgpu_amdkfd.h"
2927 
30
-#define KFD_DRIVER_AUTHOR	"AMD Inc. and others"
31
-
32
-#define KFD_DRIVER_DESC		"Standalone HSA driver for AMD's GPUs"
33
-#define KFD_DRIVER_DATE		"20150421"
34
-#define KFD_DRIVER_MAJOR	0
35
-#define KFD_DRIVER_MINOR	7
36
-#define KFD_DRIVER_PATCHLEVEL	2
37
-
38
-static const struct kgd2kfd_calls kgd2kfd = {
39
-	.exit		= kgd2kfd_exit,
40
-	.probe		= kgd2kfd_probe,
41
-	.device_init	= kgd2kfd_device_init,
42
-	.device_exit	= kgd2kfd_device_exit,
43
-	.interrupt	= kgd2kfd_interrupt,
44
-	.suspend	= kgd2kfd_suspend,
45
-	.resume		= kgd2kfd_resume,
46
-	.quiesce_mm	= kgd2kfd_quiesce_mm,
47
-	.resume_mm	= kgd2kfd_resume_mm,
48
-	.schedule_evict_and_restore_process =
49
-			  kgd2kfd_schedule_evict_and_restore_process,
50
-	.pre_reset	= kgd2kfd_pre_reset,
51
-	.post_reset	= kgd2kfd_post_reset,
52
-};
53
-
54
-int sched_policy = KFD_SCHED_POLICY_HWS;
55
-module_param(sched_policy, int, 0444);
56
-MODULE_PARM_DESC(sched_policy,
57
-	"Scheduling policy (0 = HWS (Default), 1 = HWS without over-subscription, 2 = Non-HWS (Used for debugging only)");
58
-
59
-int hws_max_conc_proc = 8;
60
-module_param(hws_max_conc_proc, int, 0444);
61
-MODULE_PARM_DESC(hws_max_conc_proc,
62
-	"Max # processes HWS can execute concurrently when sched_policy=0 (0 = no concurrency, #VMIDs for KFD = Maximum(default))");
63
-
64
-int cwsr_enable = 1;
65
-module_param(cwsr_enable, int, 0444);
66
-MODULE_PARM_DESC(cwsr_enable, "CWSR enable (0 = off, 1 = on (default))");
67
-
68
-int max_num_of_queues_per_device = KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT;
69
-module_param(max_num_of_queues_per_device, int, 0444);
70
-MODULE_PARM_DESC(max_num_of_queues_per_device,
71
-	"Maximum number of supported queues per device (1 = Minimum, 4096 = default)");
72
-
73
-int send_sigterm;
74
-module_param(send_sigterm, int, 0444);
75
-MODULE_PARM_DESC(send_sigterm,
76
-	"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");
77
-
78
-int debug_largebar;
79
-module_param(debug_largebar, int, 0444);
80
-MODULE_PARM_DESC(debug_largebar,
81
-	"Debug large-bar flag used to simulate large-bar capability on non-large bar machine (0 = disable, 1 = enable)");
82
-
83
-int ignore_crat;
84
-module_param(ignore_crat, int, 0444);
85
-MODULE_PARM_DESC(ignore_crat,
86
-	"Ignore CRAT table during KFD initialization (0 = use CRAT (default), 1 = ignore CRAT)");
87
-
88
-int noretry;
89
-module_param(noretry, int, 0644);
90
-MODULE_PARM_DESC(noretry,
91
-	"Set sh_mem_config.retry_disable on GFXv9+ dGPUs (0 = retry enabled (default), 1 = retry disabled)");
92
-
93
-int halt_if_hws_hang;
94
-module_param(halt_if_hws_hang, int, 0644);
95
-MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");
96
-
97
-
98
-static int amdkfd_init_completed;
99
-
100
-
101
-int kgd2kfd_init(unsigned int interface_version,
102
-		const struct kgd2kfd_calls **g2f)
103
-{
104
-	if (!amdkfd_init_completed)
105
-		return -EPROBE_DEFER;
106
-
107
-	/*
108
-	 * Only one interface version is supported,
109
-	 * no kfd/kgd version skew allowed.
110
-	 */
111
-	if (interface_version != KFD_INTERFACE_VERSION)
112
-		return -EINVAL;
113
-
114
-	*g2f = &kgd2kfd;
115
-
116
-	return 0;
117
-}
118
-EXPORT_SYMBOL(kgd2kfd_init);
119
-
120
-void kgd2kfd_exit(void)
121
-{
122
-}
123
-
124
-static int __init kfd_module_init(void)
28
+static int kfd_init(void)
12529 {
12630 	int err;
12731 
....@@ -129,7 +33,7 @@
12933 	if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
13034 		(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
13135 		pr_err("sched_policy has invalid value\n");
132
-		return -1;
36
+		return -EINVAL;
13337 	}
13438 
13539 	/* Verify module parameters */
....@@ -137,7 +41,7 @@
13741 		(max_num_of_queues_per_device >
13842 			KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {
13943 		pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");
140
-		return -1;
44
+		return -EINVAL;
14145 	}
14246 
14347 	err = kfd_chardev_init();
....@@ -152,11 +56,12 @@
15256 	if (err < 0)
15357 		goto err_create_wq;
15458 
59
+	/* Ignore the return value, so that we can continue
60
+	 * to init the KFD, even if procfs isn't craated
61
+	 */
62
+	kfd_procfs_init();
63
+
15564 	kfd_debugfs_init();
156
-
157
-	amdkfd_init_completed = 1;
158
-
159
-	dev_info(kfd_device, "Initialized module\n");
16065 
16166 	return 0;
16267 
....@@ -165,26 +70,25 @@
16570 err_topology:
16671 	kfd_chardev_exit();
16772 err_ioctl:
73
+	pr_err("KFD is disabled due to module initialization failure\n");
16874 	return err;
16975 }
17076 
171
-static void __exit kfd_module_exit(void)
77
+static void kfd_exit(void)
17278 {
173
-	amdkfd_init_completed = 0;
174
-
17579 	kfd_debugfs_fini();
17680 	kfd_process_destroy_wq();
81
+	kfd_procfs_shutdown();
17782 	kfd_topology_shutdown();
17883 	kfd_chardev_exit();
179
-	pr_info("amdkfd: Removed module\n");
18084 }
18185 
182
-module_init(kfd_module_init);
183
-module_exit(kfd_module_exit);
86
+int kgd2kfd_init(void)
87
+{
88
+	return kfd_init();
89
+}
18490 
185
-MODULE_AUTHOR(KFD_DRIVER_AUTHOR);
186
-MODULE_DESCRIPTION(KFD_DRIVER_DESC);
187
-MODULE_LICENSE("GPL and additional rights");
188
-MODULE_VERSION(__stringify(KFD_DRIVER_MAJOR) "."
189
-	       __stringify(KFD_DRIVER_MINOR) "."
190
-	       __stringify(KFD_DRIVER_PATCHLEVEL));
91
+void kgd2kfd_exit(void)
92
+{
93
+	kfd_exit();
94
+}