via_module.c revision 1.2.16.2
1 1.2.16.2 jdolecek /* $NetBSD: via_module.c,v 1.2.16.2 2017/12/03 11:38:01 jdolecek Exp $ */ 2 1.2.16.2 jdolecek 3 1.2.16.2 jdolecek /*- 4 1.2.16.2 jdolecek * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 1.2.16.2 jdolecek * All rights reserved. 6 1.2.16.2 jdolecek * 7 1.2.16.2 jdolecek * This code is derived from software contributed to The NetBSD Foundation 8 1.2.16.2 jdolecek * by Taylor R. Campbell. 9 1.2.16.2 jdolecek * 10 1.2.16.2 jdolecek * Redistribution and use in source and binary forms, with or without 11 1.2.16.2 jdolecek * modification, are permitted provided that the following conditions 12 1.2.16.2 jdolecek * are met: 13 1.2.16.2 jdolecek * 1. Redistributions of source code must retain the above copyright 14 1.2.16.2 jdolecek * notice, this list of conditions and the following disclaimer. 15 1.2.16.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.16.2 jdolecek * notice, this list of conditions and the following disclaimer in the 17 1.2.16.2 jdolecek * documentation and/or other materials provided with the distribution. 18 1.2.16.2 jdolecek * 19 1.2.16.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.16.2 jdolecek * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.16.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.16.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.16.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.16.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.16.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.16.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.16.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.16.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.16.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 30 1.2.16.2 jdolecek */ 31 1.2.16.2 jdolecek 32 1.2.16.2 jdolecek #include <sys/cdefs.h> 33 1.2.16.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: via_module.c,v 1.2.16.2 2017/12/03 11:38:01 jdolecek Exp $"); 34 1.2.16.2 jdolecek 35 1.2.16.2 jdolecek #include <sys/types.h> 36 1.2.16.2 jdolecek #include <sys/module.h> 37 1.2.16.2 jdolecek #include <sys/once.h> 38 1.2.16.2 jdolecek 39 1.2.16.2 jdolecek #include <drm/drmP.h> 40 1.2.16.2 jdolecek #include <drm/via_drm.h> 41 1.2.16.2 jdolecek 42 1.2.16.2 jdolecek #include "via_drv.h" 43 1.2.16.2 jdolecek 44 1.2.16.2 jdolecek MODULE(MODULE_CLASS_DRIVER, viadrmums, "drmkms,drmkms_pci"); 45 1.2.16.2 jdolecek 46 1.2.16.2 jdolecek #ifdef _MODULE 47 1.2.16.2 jdolecek #include "ioconf.c" 48 1.2.16.2 jdolecek #endif 49 1.2.16.2 jdolecek 50 1.2.16.2 jdolecek extern struct drm_driver *const via_drm_driver; /* XXX */ 51 1.2.16.2 jdolecek 52 1.2.16.2 jdolecek static int 53 1.2.16.2 jdolecek viadrm_init(void) 54 1.2.16.2 jdolecek { 55 1.2.16.2 jdolecek extern int drm_guarantee_initialized(void); 56 1.2.16.2 jdolecek int error; 57 1.2.16.2 jdolecek 58 1.2.16.2 jdolecek via_init_command_verifier(); /* idempotent, no unwind needed */ 59 1.2.16.2 jdolecek 60 1.2.16.2 jdolecek error = drm_guarantee_initialized(); 61 1.2.16.2 jdolecek if (error) 62 1.2.16.2 jdolecek return error; 63 1.2.16.2 jdolecek 64 1.2.16.2 jdolecek error = drm_pci_init(via_drm_driver, NULL); 65 1.2.16.2 jdolecek if (error) { 66 1.2.16.2 jdolecek aprint_error("viadrmkms: failed to init pci: %d\n", 67 1.2.16.2 jdolecek error); 68 1.2.16.2 jdolecek return error; 69 1.2.16.2 jdolecek } 70 1.2.16.2 jdolecek 71 1.2.16.2 jdolecek return 0; 72 1.2.16.2 jdolecek } 73 1.2.16.2 jdolecek 74 1.2.16.2 jdolecek int viadrm_guarantee_initialized(void); /* XXX */ 75 1.2.16.2 jdolecek int 76 1.2.16.2 jdolecek viadrm_guarantee_initialized(void) 77 1.2.16.2 jdolecek { 78 1.2.16.2 jdolecek #ifdef _MODULE 79 1.2.16.2 jdolecek return 0; 80 1.2.16.2 jdolecek #else 81 1.2.16.2 jdolecek static ONCE_DECL(viadrm_init_once); 82 1.2.16.2 jdolecek 83 1.2.16.2 jdolecek return RUN_ONCE(&viadrm_init_once, &viadrm_init); 84 1.2.16.2 jdolecek #endif 85 1.2.16.2 jdolecek } 86 1.2.16.2 jdolecek 87 1.2.16.2 jdolecek static void 88 1.2.16.2 jdolecek viadrm_fini(void) 89 1.2.16.2 jdolecek { 90 1.2.16.2 jdolecek 91 1.2.16.2 jdolecek drm_pci_exit(via_drm_driver, NULL); 92 1.2.16.2 jdolecek } 93 1.2.16.2 jdolecek 94 1.2.16.2 jdolecek static int 95 1.2.16.2 jdolecek viadrmums_modcmd(modcmd_t cmd, void *arg __unused) 96 1.2.16.2 jdolecek { 97 1.2.16.2 jdolecek int error; 98 1.2.16.2 jdolecek 99 1.2.16.2 jdolecek switch (cmd) { 100 1.2.16.2 jdolecek case MODULE_CMD_INIT: 101 1.2.16.2 jdolecek #ifdef _MODULE 102 1.2.16.2 jdolecek error = viadrm_init(); 103 1.2.16.2 jdolecek #else 104 1.2.16.2 jdolecek error = viadrm_guarantee_initialized(); 105 1.2.16.2 jdolecek #endif 106 1.2.16.2 jdolecek if (error) { 107 1.2.16.2 jdolecek aprint_error("viadrmums: failed to initialize: %d\n", 108 1.2.16.2 jdolecek error); 109 1.2.16.2 jdolecek return error; 110 1.2.16.2 jdolecek } 111 1.2.16.2 jdolecek #ifdef _MODULE 112 1.2.16.2 jdolecek error = config_init_component(cfdriver_ioconf_viadrmums, 113 1.2.16.2 jdolecek cfattach_ioconf_viadrmums, cfdata_ioconf_viadrmums); 114 1.2.16.2 jdolecek if (error) { 115 1.2.16.2 jdolecek aprint_error("viadrmums: failed to init component" 116 1.2.16.2 jdolecek ": %d\n", error); 117 1.2.16.2 jdolecek viadrm_fini(); 118 1.2.16.2 jdolecek return error; 119 1.2.16.2 jdolecek } 120 1.2.16.2 jdolecek #endif 121 1.2.16.2 jdolecek return 0; 122 1.2.16.2 jdolecek 123 1.2.16.2 jdolecek case MODULE_CMD_FINI: 124 1.2.16.2 jdolecek #ifdef _MODULE 125 1.2.16.2 jdolecek error = config_fini_component(cfdriver_ioconf_viadrmums, 126 1.2.16.2 jdolecek cfattach_ioconf_viadrmums, cfdata_ioconf_viadrmums); 127 1.2.16.2 jdolecek if (error) { 128 1.2.16.2 jdolecek aprint_error("viadrmums: failed to fini component" 129 1.2.16.2 jdolecek ": %d\n", error); 130 1.2.16.2 jdolecek return error; 131 1.2.16.2 jdolecek } 132 1.2.16.2 jdolecek #endif 133 1.2.16.2 jdolecek viadrm_fini(); 134 1.2.16.2 jdolecek return 0; 135 1.2.16.2 jdolecek 136 1.2.16.2 jdolecek default: 137 1.2.16.2 jdolecek return ENOTTY; 138 1.2.16.2 jdolecek } 139 1.2.16.2 jdolecek } 140
Indexes created Wed Oct 22 13:09:56 GMT 2025