1 1.19 riastrad /* $NetBSD: i915_module.c,v 1.19 2022/07/17 14:10:43 riastradh Exp $ */ 2 1.2 riastrad 3 1.2 riastrad /*- 4 1.2 riastrad * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2 riastrad * All rights reserved. 6 1.2 riastrad * 7 1.2 riastrad * This code is derived from software contributed to The NetBSD Foundation 8 1.2 riastrad * by Taylor R. Campbell. 9 1.2 riastrad * 10 1.2 riastrad * Redistribution and use in source and binary forms, with or without 11 1.2 riastrad * modification, are permitted provided that the following conditions 12 1.2 riastrad * are met: 13 1.2 riastrad * 1. Redistributions of source code must retain the above copyright 14 1.2 riastrad * notice, this list of conditions and the following disclaimer. 15 1.2 riastrad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 riastrad * notice, this list of conditions and the following disclaimer in the 17 1.2 riastrad * documentation and/or other materials provided with the distribution. 18 1.2 riastrad * 19 1.2 riastrad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 riastrad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 riastrad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 riastrad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 riastrad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 riastrad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 riastrad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 riastrad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 riastrad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 riastrad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 riastrad * POSSIBILITY OF SUCH DAMAGE. 30 1.2 riastrad */ 31 1.2 riastrad 32 1.2 riastrad #include <sys/cdefs.h> 33 1.19 riastrad __KERNEL_RCSID(0, "$NetBSD: i915_module.c,v 1.19 2022/07/17 14:10:43 riastradh Exp $"); 34 1.2 riastrad 35 1.2 riastrad #include <sys/types.h> 36 1.2 riastrad #include <sys/module.h> 37 1.3 riastrad #ifndef _MODULE 38 1.3 riastrad #include <sys/once.h> 39 1.3 riastrad #endif 40 1.2 riastrad #include <sys/systm.h> 41 1.2 riastrad 42 1.10 riastrad #include <drm/drm_device.h> 43 1.4 christos #include <drm/drm_sysctl.h> 44 1.2 riastrad 45 1.2 riastrad #include "i915_drv.h" 46 1.17 riastrad #include "i915_globals.h" 47 1.14 riastrad #include "gt/intel_rps.h" 48 1.2 riastrad 49 1.18 riastrad MODULE(MODULE_CLASS_DRIVER, i915drmkms, "acpivga,drmkms,drmkms_pci"); /* XXX drmkms_i2c */ 50 1.2 riastrad 51 1.2 riastrad #ifdef _MODULE 52 1.2 riastrad #include "ioconf.c" 53 1.2 riastrad #endif 54 1.2 riastrad 55 1.5 christos struct drm_sysctl_def i915_def = DRM_SYSCTL_INIT(); 56 1.4 christos 57 1.16 riastrad /* XXX use link sets for DEFINE_SPINLOCK */ 58 1.15 riastrad extern spinlock_t i915_sw_fence_lock; 59 1.16 riastrad extern spinlock_t *const i915_schedule_lock; 60 1.15 riastrad 61 1.3 riastrad static int 62 1.3 riastrad i915drmkms_init(void) 63 1.3 riastrad { 64 1.3 riastrad int error; 65 1.3 riastrad 66 1.3 riastrad error = drm_guarantee_initialized(); 67 1.3 riastrad if (error) 68 1.3 riastrad return error; 69 1.3 riastrad 70 1.17 riastrad /* XXX errno Linux->NetBSD */ 71 1.17 riastrad error = -i915_globals_init(); 72 1.11 riastrad if (error) 73 1.11 riastrad return error; 74 1.11 riastrad 75 1.5 christos drm_sysctl_init(&i915_def); 76 1.6 riastrad spin_lock_init(&mchdev_lock); 77 1.15 riastrad spin_lock_init(&i915_sw_fence_lock); 78 1.16 riastrad spin_lock_init(i915_schedule_lock); 79 1.3 riastrad 80 1.3 riastrad return 0; 81 1.3 riastrad } 82 1.3 riastrad 83 1.3 riastrad int i915drmkms_guarantee_initialized(void); /* XXX */ 84 1.3 riastrad int 85 1.3 riastrad i915drmkms_guarantee_initialized(void) 86 1.3 riastrad { 87 1.3 riastrad #ifdef _MODULE 88 1.3 riastrad return 0; 89 1.3 riastrad #else 90 1.3 riastrad static ONCE_DECL(i915drmkms_init_once); 91 1.3 riastrad 92 1.3 riastrad return RUN_ONCE(&i915drmkms_init_once, &i915drmkms_init); 93 1.3 riastrad #endif 94 1.3 riastrad } 95 1.3 riastrad 96 1.3 riastrad static void 97 1.3 riastrad i915drmkms_fini(void) 98 1.3 riastrad { 99 1.3 riastrad 100 1.16 riastrad spin_lock_destroy(i915_schedule_lock); 101 1.15 riastrad spin_lock_destroy(&i915_sw_fence_lock); 102 1.6 riastrad spin_lock_destroy(&mchdev_lock); 103 1.6 riastrad drm_sysctl_fini(&i915_def); 104 1.17 riastrad 105 1.17 riastrad i915_globals_exit(); 106 1.3 riastrad } 107 1.2 riastrad 108 1.2 riastrad static int 109 1.2 riastrad i915drmkms_modcmd(modcmd_t cmd, void *arg __unused) 110 1.2 riastrad { 111 1.2 riastrad int error; 112 1.2 riastrad 113 1.2 riastrad switch (cmd) { 114 1.2 riastrad case MODULE_CMD_INIT: 115 1.2 riastrad /* XXX Kludge it up... Must happen before attachment. */ 116 1.3 riastrad #ifdef _MODULE 117 1.3 riastrad error = i915drmkms_init(); 118 1.3 riastrad #else 119 1.3 riastrad error = i915drmkms_guarantee_initialized(); 120 1.3 riastrad #endif 121 1.2 riastrad if (error) { 122 1.3 riastrad aprint_error("i915drmkms: failed to initialize: %d\n", 123 1.2 riastrad error); 124 1.2 riastrad return error; 125 1.2 riastrad } 126 1.2 riastrad #ifdef _MODULE 127 1.2 riastrad error = config_init_component(cfdriver_ioconf_i915drmkms, 128 1.2 riastrad cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); 129 1.2 riastrad if (error) { 130 1.2 riastrad aprint_error("i915drmkms: failed to init component" 131 1.2 riastrad ": %d\n", error); 132 1.3 riastrad i915drmkms_fini(); 133 1.2 riastrad return error; 134 1.2 riastrad } 135 1.2 riastrad #endif 136 1.2 riastrad return 0; 137 1.2 riastrad 138 1.2 riastrad case MODULE_CMD_FINI: 139 1.2 riastrad #ifdef _MODULE 140 1.2 riastrad error = config_fini_component(cfdriver_ioconf_i915drmkms, 141 1.2 riastrad cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); 142 1.2 riastrad if (error) { 143 1.2 riastrad aprint_error("i915drmkms: failed to fini component" 144 1.2 riastrad ": %d\n", error); 145 1.2 riastrad return error; 146 1.2 riastrad } 147 1.2 riastrad #endif 148 1.3 riastrad i915drmkms_fini(); 149 1.2 riastrad return 0; 150 1.2 riastrad 151 1.2 riastrad default: 152 1.2 riastrad return ENOTTY; 153 1.2 riastrad } 154 1.2 riastrad } 155
Indexes created Tue Sep 30 20:09:53 GMT 2025