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1/*2 * SPDX-License-Identifier: MIT3 *4 * Copyright © 2021 Intel Corporation5 */6 7#include <drm/drm_drv.h>8 9#include "gem/i915_gem_context.h"10#include "gem/i915_gem_object.h"11#include "i915_active.h"12#include "i915_driver.h"13#include "i915_params.h"14#include "i915_pci.h"15#include "i915_perf.h"16#include "i915_request.h"17#include "i915_scheduler.h"18#include "i915_selftest.h"19#include "i915_vma.h"20#include "i915_vma_resource.h"21 22static int i915_check_nomodeset(void)23{24 bool use_kms = true;25 26 /*27 * Enable KMS by default, unless explicitly overriden by28 * either the i915.modeset parameter or by the29 * nomodeset boot option.30 */31 32 if (i915_modparams.modeset == 0)33 pr_warn("i915.modeset=0 is deprecated. Please use the 'nomodeset' kernel parameter instead.\n");34 else if (i915_modparams.modeset != -1)35 pr_warn("i915.modeset=%d is deprecated. Please remove it and the 'nomodeset' kernel parameter instead.\n",36 i915_modparams.modeset);37 38 if (i915_modparams.modeset == 0)39 use_kms = false;40 41 if (drm_firmware_drivers_only() && i915_modparams.modeset == -1)42 use_kms = false;43 44 if (!use_kms) {45 DRM_DEBUG_DRIVER("KMS disabled.\n");46 return -ENODEV;47 }48 49 return 0;50}51 52static const struct {53 int (*init)(void);54 void (*exit)(void);55} init_funcs[] = {56 { .init = i915_check_nomodeset },57 { .init = i915_active_module_init,58 .exit = i915_active_module_exit },59 { .init = i915_context_module_init,60 .exit = i915_context_module_exit },61 { .init = i915_gem_context_module_init,62 .exit = i915_gem_context_module_exit },63 { .init = i915_objects_module_init,64 .exit = i915_objects_module_exit },65 { .init = i915_request_module_init,66 .exit = i915_request_module_exit },67 { .init = i915_scheduler_module_init,68 .exit = i915_scheduler_module_exit },69 { .init = i915_vma_module_init,70 .exit = i915_vma_module_exit },71 { .init = i915_vma_resource_module_init,72 .exit = i915_vma_resource_module_exit },73 { .init = i915_mock_selftests },74 { .init = i915_pmu_init,75 .exit = i915_pmu_exit },76 { .init = i915_pci_register_driver,77 .exit = i915_pci_unregister_driver },78 { .init = i915_perf_sysctl_register,79 .exit = i915_perf_sysctl_unregister },80};81static int init_progress;82 83static int __init i915_init(void)84{85 int err, i;86 87 for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {88 err = init_funcs[i].init();89 if (err < 0) {90 while (i--) {91 if (init_funcs[i].exit)92 init_funcs[i].exit();93 }94 return err;95 } else if (err > 0) {96 /*97 * Early-exit success is reserved for things which98 * don't have an exit() function because we have no99 * idea how far they got or how to partially tear100 * them down.101 */102 WARN_ON(init_funcs[i].exit);103 break;104 }105 }106 107 init_progress = i;108 109 return 0;110}111 112static void __exit i915_exit(void)113{114 int i;115 116 for (i = init_progress - 1; i >= 0; i--) {117 GEM_BUG_ON(i >= ARRAY_SIZE(init_funcs));118 if (init_funcs[i].exit)119 init_funcs[i].exit();120 }121}122 123module_init(i915_init);124module_exit(i915_exit);125 126MODULE_AUTHOR("Tungsten Graphics, Inc.");127MODULE_AUTHOR("Intel Corporation");128 129MODULE_DESCRIPTION(DRIVER_DESC);130MODULE_LICENSE("GPL and additional rights");131