From e636c8d336489bf3eed5878299e6cc045bbad077 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:17:29 +0000
Subject: [PATCH] debug lk
---
kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c | 136 ++++++--------------------------------------
1 files changed, 20 insertions(+), 116 deletions(-)
diff --git a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c
index 6e1f5c7..5e90fe6 100644
--- a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c
+++ b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c
@@ -20,108 +20,12 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
-#include <linux/module.h>
#include <linux/sched.h>
-#include <linux/moduleparam.h>
#include <linux/device.h>
-#include <linux/printk.h>
#include "kfd_priv.h"
+#include "amdgpu_amdkfd.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,
- .quiesce_mm = kgd2kfd_quiesce_mm,
- .resume_mm = kgd2kfd_resume_mm,
- .schedule_evict_and_restore_process =
- kgd2kfd_schedule_evict_and_restore_process,
- .pre_reset = kgd2kfd_pre_reset,
- .post_reset = kgd2kfd_post_reset,
-};
-
-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 hws_max_conc_proc = 8;
-module_param(hws_max_conc_proc, int, 0444);
-MODULE_PARM_DESC(hws_max_conc_proc,
- "Max # processes HWS can execute concurrently when sched_policy=0 (0 = no concurrency, #VMIDs for KFD = Maximum(default))");
-
-int cwsr_enable = 1;
-module_param(cwsr_enable, int, 0444);
-MODULE_PARM_DESC(cwsr_enable, "CWSR enable (0 = off, 1 = on (default))");
-
-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)");
-
-int debug_largebar;
-module_param(debug_largebar, int, 0444);
-MODULE_PARM_DESC(debug_largebar,
- "Debug large-bar flag used to simulate large-bar capability on non-large bar machine (0 = disable, 1 = enable)");
-
-int ignore_crat;
-module_param(ignore_crat, int, 0444);
-MODULE_PARM_DESC(ignore_crat,
- "Ignore CRAT table during KFD initialization (0 = use CRAT (default), 1 = ignore CRAT)");
-
-int noretry;
-module_param(noretry, int, 0644);
-MODULE_PARM_DESC(noretry,
- "Set sh_mem_config.retry_disable on GFXv9+ dGPUs (0 = retry enabled (default), 1 = retry disabled)");
-
-int halt_if_hws_hang;
-module_param(halt_if_hws_hang, int, 0644);
-MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");
-
-
-static int amdkfd_init_completed;
-
-
-int kgd2kfd_init(unsigned int 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;
-}
-EXPORT_SYMBOL(kgd2kfd_init);
-
-void kgd2kfd_exit(void)
-{
-}
-
-static int __init kfd_module_init(void)
+static int kfd_init(void)
{
int err;
@@ -129,7 +33,7 @@
if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
pr_err("sched_policy has invalid value\n");
- return -1;
+ return -EINVAL;
}
/* Verify module parameters */
@@ -137,7 +41,7 @@
(max_num_of_queues_per_device >
KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {
pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");
- return -1;
+ return -EINVAL;
}
err = kfd_chardev_init();
@@ -152,11 +56,12 @@
if (err < 0)
goto err_create_wq;
+ /* Ignore the return value, so that we can continue
+ * to init the KFD, even if procfs isn't craated
+ */
+ kfd_procfs_init();
+
kfd_debugfs_init();
-
- amdkfd_init_completed = 1;
-
- dev_info(kfd_device, "Initialized module\n");
return 0;
@@ -165,26 +70,25 @@
err_topology:
kfd_chardev_exit();
err_ioctl:
+ pr_err("KFD is disabled due to module initialization failure\n");
return err;
}
-static void __exit kfd_module_exit(void)
+static void kfd_exit(void)
{
- amdkfd_init_completed = 0;
-
kfd_debugfs_fini();
kfd_process_destroy_wq();
+ kfd_procfs_shutdown();
kfd_topology_shutdown();
kfd_chardev_exit();
- pr_info("amdkfd: Removed module\n");
}
-module_init(kfd_module_init);
-module_exit(kfd_module_exit);
+int kgd2kfd_init(void)
+{
+ return kfd_init();
+}
-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));
+void kgd2kfd_exit(void)
+{
+ kfd_exit();
+}
--
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