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_sched_job.h" 15 16 struct xe_modparam xe_modparam = { 17 .enable_display = true, 18 .guc_log_level = 5, 19 .force_probe = CONFIG_DRM_XE_FORCE_PROBE, 20 /* the rest are 0 by default */ 21 }; 22 23 module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444); 24 MODULE_PARM_DESC(force_execlist, "Force Execlist submission"); 25 26 module_param_named(enable_display, xe_modparam.enable_display, bool, 0444); 27 MODULE_PARM_DESC(enable_display, "Enable display"); 28 29 module_param_named(vram_bar_size, xe_modparam.force_vram_bar_size, uint, 0600); 30 MODULE_PARM_DESC(vram_bar_size, "Set the vram bar size(in MiB)"); 31 32 module_param_named(guc_log_level, xe_modparam.guc_log_level, int, 0600); 33 MODULE_PARM_DESC(guc_log_level, "GuC firmware logging level (0=disable, 1..5=enable with verbosity min..max)"); 34 35 module_param_named_unsafe(guc_firmware_path, xe_modparam.guc_firmware_path, charp, 0400); 36 MODULE_PARM_DESC(guc_firmware_path, 37 "GuC firmware path to use instead of the default one"); 38 39 module_param_named_unsafe(huc_firmware_path, xe_modparam.huc_firmware_path, charp, 0400); 40 MODULE_PARM_DESC(huc_firmware_path, 41 "HuC firmware path to use instead of the default one - empty string disables"); 42 43 module_param_named_unsafe(gsc_firmware_path, xe_modparam.gsc_firmware_path, charp, 0400); 44 MODULE_PARM_DESC(gsc_firmware_path, 45 "GSC firmware path to use instead of the default one - empty string disables"); 46 47 module_param_named_unsafe(force_probe, xe_modparam.force_probe, charp, 0400); 48 MODULE_PARM_DESC(force_probe, 49 "Force probe options for specified devices. See CONFIG_DRM_XE_FORCE_PROBE for details."); 50 51 #ifdef CONFIG_PCI_IOV 52 module_param_named(max_vfs, xe_modparam.max_vfs, uint, 0400); 53 MODULE_PARM_DESC(max_vfs, 54 "Limit number of Virtual Functions (VFs) that could be managed. " 55 "(0 = no VFs [default]; N = allow up to N VFs)"); 56 #endif 57 58 struct init_funcs { 59 int (*init)(void); 60 void (*exit)(void); 61 }; 62 63 static const struct init_funcs init_funcs[] = { 64 { 65 .init = xe_hw_fence_module_init, 66 .exit = xe_hw_fence_module_exit, 67 }, 68 { 69 .init = xe_sched_job_module_init, 70 .exit = xe_sched_job_module_exit, 71 }, 72 { 73 .init = xe_register_pci_driver, 74 .exit = xe_unregister_pci_driver, 75 }, 76 }; 77 78 static int __init xe_init(void) 79 { 80 int err, i; 81 82 for (i = 0; i < ARRAY_SIZE(init_funcs); i++) { 83 err = init_funcs[i].init(); 84 if (err) { 85 while (i--) 86 init_funcs[i].exit(); 87 return err; 88 } 89 } 90 91 return 0; 92 } 93 94 static void __exit xe_exit(void) 95 { 96 int i; 97 98 for (i = ARRAY_SIZE(init_funcs) - 1; i >= 0; i--) 99 init_funcs[i].exit(); 100 } 101 102 module_init(xe_init); 103 module_exit(xe_exit); 104 105 MODULE_AUTHOR("Intel Corporation"); 106 107 MODULE_DESCRIPTION(DRIVER_DESC); 108 MODULE_LICENSE("GPL and additional rights"); 109