1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2021 Intel Corporation 4 */ 5 6 #include "xe_module.h" 7 8 #include <linux/init.h> 9 #include <linux/module.h> 10 11 #include "xe_drv.h" 12 #include "xe_hw_fence.h" 13 #include "xe_pci.h" 14 #include "xe_observation.h" 15 #include "xe_sched_job.h" 16 17 struct xe_modparam xe_modparam = { 18 .enable_display = true, 19 .guc_log_level = 5, 20 .force_probe = CONFIG_DRM_XE_FORCE_PROBE, 21 .wedged_mode = 1, 22 /* the rest are 0 by default */ 23 }; 24 25 module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444); 26 MODULE_PARM_DESC(force_execlist, "Force Execlist submission"); 27 28 module_param_named(enable_display, xe_modparam.enable_display, bool, 0444); 29 MODULE_PARM_DESC(enable_display, "Enable display"); 30 31 module_param_named(vram_bar_size, xe_modparam.force_vram_bar_size, uint, 0600); 32 MODULE_PARM_DESC(vram_bar_size, "Set the vram bar size(in MiB)"); 33 34 module_param_named(guc_log_level, xe_modparam.guc_log_level, int, 0600); 35 MODULE_PARM_DESC(guc_log_level, "GuC firmware logging level (0=disable, 1..5=enable with verbosity min..max)"); 36 37 module_param_named_unsafe(guc_firmware_path, xe_modparam.guc_firmware_path, charp, 0400); 38 MODULE_PARM_DESC(guc_firmware_path, 39 "GuC firmware path to use instead of the default one"); 40 41 module_param_named_unsafe(huc_firmware_path, xe_modparam.huc_firmware_path, charp, 0400); 42 MODULE_PARM_DESC(huc_firmware_path, 43 "HuC firmware path to use instead of the default one - empty string disables"); 44 45 module_param_named_unsafe(gsc_firmware_path, xe_modparam.gsc_firmware_path, charp, 0400); 46 MODULE_PARM_DESC(gsc_firmware_path, 47 "GSC firmware path to use instead of the default one - empty string disables"); 48 49 module_param_named_unsafe(force_probe, xe_modparam.force_probe, charp, 0400); 50 MODULE_PARM_DESC(force_probe, 51 "Force probe options for specified devices. See CONFIG_DRM_XE_FORCE_PROBE for details."); 52 53 #ifdef CONFIG_PCI_IOV 54 module_param_named(max_vfs, xe_modparam.max_vfs, uint, 0400); 55 MODULE_PARM_DESC(max_vfs, 56 "Limit number of Virtual Functions (VFs) that could be managed. " 57 "(0 = no VFs [default]; N = allow up to N VFs)"); 58 #endif 59 60 module_param_named_unsafe(wedged_mode, xe_modparam.wedged_mode, int, 0600); 61 MODULE_PARM_DESC(wedged_mode, 62 "Module's default policy for the wedged mode - 0=never, 1=upon-critical-errors[default], 2=upon-any-hang"); 63 64 struct init_funcs { 65 int (*init)(void); 66 void (*exit)(void); 67 }; 68 69 static const struct init_funcs init_funcs[] = { 70 { 71 .init = xe_hw_fence_module_init, 72 .exit = xe_hw_fence_module_exit, 73 }, 74 { 75 .init = xe_sched_job_module_init, 76 .exit = xe_sched_job_module_exit, 77 }, 78 { 79 .init = xe_register_pci_driver, 80 .exit = xe_unregister_pci_driver, 81 }, 82 { 83 .init = xe_observation_sysctl_register, 84 .exit = xe_observation_sysctl_unregister, 85 }, 86 }; 87 88 static int __init xe_init(void) 89 { 90 int err, i; 91 92 for (i = 0; i < ARRAY_SIZE(init_funcs); i++) { 93 err = init_funcs[i].init(); 94 if (err) { 95 while (i--) 96 init_funcs[i].exit(); 97 return err; 98 } 99 } 100 101 return 0; 102 } 103 104 static void __exit xe_exit(void) 105 { 106 int i; 107 108 for (i = ARRAY_SIZE(init_funcs) - 1; i >= 0; i--) 109 init_funcs[i].exit(); 110 } 111 112 module_init(xe_init); 113 module_exit(xe_exit); 114 115 MODULE_AUTHOR("Intel Corporation"); 116 117 MODULE_DESCRIPTION(DRIVER_DESC); 118 MODULE_LICENSE("GPL and additional rights"); 119