| 1 | /* $NetBSD: radeon_module.c,v 1.3 2014/11/12 03:14:00 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2014 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: radeon_module.c,v 1.3 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 "radeon_drv.h" |
| 46 | |
| 47 | MODULE(MODULE_CLASS_DRIVER, radeon, "drmkms,drmkms_pci" ); /* XXX drmkms_i2c, drmkms_ttm */ |
| 48 | |
| 49 | #ifdef _MODULE |
| 50 | #include "ioconf.c" |
| 51 | #endif |
| 52 | |
| 53 | /* XXX Kludge to get these from radeon_drv.c. */ |
| 54 | extern struct drm_driver *const radeon_drm_driver; |
| 55 | extern int radeon_max_kms_ioctl; |
| 56 | |
| 57 | struct drm_sysctl_def radeon_def = DRM_SYSCTL_INIT(); |
| 58 | |
| 59 | static int |
| 60 | radeon_init(void) |
| 61 | { |
| 62 | extern int drm_guarantee_initialized(void); |
| 63 | int error; |
| 64 | |
| 65 | error = drm_guarantee_initialized(); |
| 66 | if (error) |
| 67 | return error; |
| 68 | |
| 69 | radeon_drm_driver->num_ioctls = radeon_max_kms_ioctl; |
| 70 | radeon_drm_driver->driver_features |= DRIVER_MODESET; |
| 71 | |
| 72 | error = drm_pci_init(radeon_drm_driver, NULL); |
| 73 | if (error) { |
| 74 | aprint_error("radeon: failed to init pci: %d\n" , |
| 75 | error); |
| 76 | return error; |
| 77 | } |
| 78 | drm_sysctl_init(&radeon_def); |
| 79 | |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | int radeon_guarantee_initialized(void); /* XXX */ |
| 84 | int |
| 85 | radeon_guarantee_initialized(void) |
| 86 | { |
| 87 | #ifdef _MODULE |
| 88 | return 0; |
| 89 | #else |
| 90 | static ONCE_DECL(radeon_init_once); |
| 91 | |
| 92 | return RUN_ONCE(&radeon_init_once, &radeon_init); |
| 93 | #endif |
| 94 | } |
| 95 | |
| 96 | static void |
| 97 | radeon_fini(void) |
| 98 | { |
| 99 | drm_sysctl_fini(&radeon_def); |
| 100 | drm_pci_exit(radeon_drm_driver, NULL); |
| 101 | } |
| 102 | |
| 103 | static int |
| 104 | radeon_modcmd(modcmd_t cmd, void *arg __unused) |
| 105 | { |
| 106 | int error; |
| 107 | |
| 108 | switch (cmd) { |
| 109 | case MODULE_CMD_INIT: |
| 110 | /* XXX Kludge it up... Must happen before attachment. */ |
| 111 | #ifdef _MODULE |
| 112 | error = radeon_init(); |
| 113 | #else |
| 114 | error = radeon_guarantee_initialized(); |
| 115 | #endif |
| 116 | if (error) { |
| 117 | aprint_error("radeon: failed to initialize: %d\n" , |
| 118 | error); |
| 119 | return error; |
| 120 | } |
| 121 | #ifdef _MODULE |
| 122 | error = config_init_component(cfdriver_ioconf_radeon, |
| 123 | cfattach_ioconf_radeon, cfdata_ioconf_radeon); |
| 124 | if (error) { |
| 125 | aprint_error("radeon: failed to init component" |
| 126 | ": %d\n" , error); |
| 127 | radeon_fini(); |
| 128 | return error; |
| 129 | } |
| 130 | #endif |
| 131 | return 0; |
| 132 | |
| 133 | case MODULE_CMD_FINI: |
| 134 | #ifdef _MODULE |
| 135 | error = config_fini_component(cfdriver_ioconf_radeon, |
| 136 | cfattach_ioconf_radeon, cfdata_ioconf_radeon); |
| 137 | if (error) { |
| 138 | aprint_error("radeon: failed to fini component" |
| 139 | ": %d\n" , error); |
| 140 | return error; |
| 141 | } |
| 142 | #endif |
| 143 | radeon_fini(); |
| 144 | return 0; |
| 145 | |
| 146 | default: |
| 147 | return ENOTTY; |
| 148 | } |
| 149 | } |
| 150 | |