| 1 | /* $NetBSD: i915_module.c,v 1.5 2014/11/12 03:14:00 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2013 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Taylor R. Campbell. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <sys/cdefs.h> |
| 33 | __KERNEL_RCSID(0, "$NetBSD: i915_module.c,v 1.5 2014/11/12 03:14:00 christos Exp $" ); |
| 34 | |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/module.h> |
| 37 | #ifndef _MODULE |
| 38 | #include <sys/once.h> |
| 39 | #endif |
| 40 | #include <sys/systm.h> |
| 41 | |
| 42 | #include <drm/drmP.h> |
| 43 | #include <drm/drm_sysctl.h> |
| 44 | |
| 45 | #include "i915_drv.h" |
| 46 | |
| 47 | MODULE(MODULE_CLASS_DRIVER, i915drmkms, "drmkms,drmkms_pci" ); /* XXX drmkms_i2c */ |
| 48 | |
| 49 | #ifdef _MODULE |
| 50 | #include "ioconf.c" |
| 51 | #endif |
| 52 | |
| 53 | /* XXX Kludge to get these from i915_drv.c. */ |
| 54 | extern struct drm_driver *const i915_drm_driver; |
| 55 | extern const struct pci_device_id *const i915_device_ids; |
| 56 | extern const size_t i915_n_device_ids; |
| 57 | |
| 58 | struct drm_sysctl_def i915_def = DRM_SYSCTL_INIT(); |
| 59 | |
| 60 | static int |
| 61 | i915drmkms_init(void) |
| 62 | { |
| 63 | extern int drm_guarantee_initialized(void); |
| 64 | int error; |
| 65 | |
| 66 | error = drm_guarantee_initialized(); |
| 67 | if (error) |
| 68 | return error; |
| 69 | |
| 70 | i915_drm_driver->num_ioctls = i915_max_ioctl; |
| 71 | i915_drm_driver->driver_features |= DRIVER_MODESET; |
| 72 | i915_drm_driver->driver_features &= ~DRIVER_USE_AGP; |
| 73 | |
| 74 | error = drm_pci_init(i915_drm_driver, NULL); |
| 75 | if (error) { |
| 76 | aprint_error("i915drmkms: failed to init pci: %d\n" , |
| 77 | error); |
| 78 | return error; |
| 79 | } |
| 80 | drm_sysctl_init(&i915_def); |
| 81 | |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | int i915drmkms_guarantee_initialized(void); /* XXX */ |
| 86 | int |
| 87 | i915drmkms_guarantee_initialized(void) |
| 88 | { |
| 89 | #ifdef _MODULE |
| 90 | return 0; |
| 91 | #else |
| 92 | static ONCE_DECL(i915drmkms_init_once); |
| 93 | |
| 94 | return RUN_ONCE(&i915drmkms_init_once, &i915drmkms_init); |
| 95 | #endif |
| 96 | } |
| 97 | |
| 98 | static void |
| 99 | i915drmkms_fini(void) |
| 100 | { |
| 101 | |
| 102 | drm_pci_exit(i915_drm_driver, NULL); |
| 103 | drm_sysctl_fini(&i915_def); |
| 104 | } |
| 105 | |
| 106 | static int |
| 107 | i915drmkms_modcmd(modcmd_t cmd, void *arg __unused) |
| 108 | { |
| 109 | int error; |
| 110 | |
| 111 | switch (cmd) { |
| 112 | case MODULE_CMD_INIT: |
| 113 | /* XXX Kludge it up... Must happen before attachment. */ |
| 114 | #ifdef _MODULE |
| 115 | error = i915drmkms_init(); |
| 116 | #else |
| 117 | error = i915drmkms_guarantee_initialized(); |
| 118 | #endif |
| 119 | if (error) { |
| 120 | aprint_error("i915drmkms: failed to initialize: %d\n" , |
| 121 | error); |
| 122 | return error; |
| 123 | } |
| 124 | #ifdef _MODULE |
| 125 | error = config_init_component(cfdriver_ioconf_i915drmkms, |
| 126 | cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); |
| 127 | if (error) { |
| 128 | aprint_error("i915drmkms: failed to init component" |
| 129 | ": %d\n" , error); |
| 130 | i915drmkms_fini(); |
| 131 | return error; |
| 132 | } |
| 133 | #endif |
| 134 | return 0; |
| 135 | |
| 136 | case MODULE_CMD_FINI: |
| 137 | #ifdef _MODULE |
| 138 | error = config_fini_component(cfdriver_ioconf_i915drmkms, |
| 139 | cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); |
| 140 | if (error) { |
| 141 | aprint_error("i915drmkms: failed to fini component" |
| 142 | ": %d\n" , error); |
| 143 | return error; |
| 144 | } |
| 145 | #endif |
| 146 | i915drmkms_fini(); |
| 147 | return 0; |
| 148 | |
| 149 | default: |
| 150 | return ENOTTY; |
| 151 | } |
| 152 | } |
| 153 | |