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i915_module.c revision 1.2.2.1
      1  1.2.2.1       tls /*	$NetBSD: i915_module.c,v 1.2.2.1 2014/08/10 06:55:39 tls 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  1.2.2.1       tls __KERNEL_RCSID(0, "$NetBSD: i915_module.c,v 1.2.2.1 2014/08/10 06:55:39 tls Exp $");
     34      1.2  riastrad 
     35      1.2  riastrad #include <sys/types.h>
     36      1.2  riastrad #include <sys/module.h>
     37  1.2.2.1       tls #ifndef _MODULE
     38  1.2.2.1       tls #include <sys/once.h>
     39  1.2.2.1       tls #endif
     40      1.2  riastrad #include <sys/systm.h>
     41      1.2  riastrad 
     42      1.2  riastrad #include <drm/drmP.h>
     43      1.2  riastrad 
     44      1.2  riastrad #include "i915_drv.h"
     45      1.2  riastrad 
     46      1.2  riastrad MODULE(MODULE_CLASS_DRIVER, i915drmkms, "drmkms,drmkms_pci"); /* XXX drmkms_i2c */
     47      1.2  riastrad 
     48      1.2  riastrad #ifdef _MODULE
     49      1.2  riastrad #include "ioconf.c"
     50      1.2  riastrad #endif
     51      1.2  riastrad 
     52  1.2.2.1       tls /* XXX Kludge to get these from i915_drv.c.  */
     53      1.2  riastrad extern struct drm_driver *const i915_drm_driver;
     54  1.2.2.1       tls extern const struct pci_device_id *const i915_device_ids;
     55  1.2.2.1       tls extern const size_t i915_n_device_ids;
     56  1.2.2.1       tls 
     57  1.2.2.1       tls static int
     58  1.2.2.1       tls i915drmkms_init(void)
     59  1.2.2.1       tls {
     60  1.2.2.1       tls 	extern int drm_guarantee_initialized(void);
     61  1.2.2.1       tls 	int error;
     62  1.2.2.1       tls 
     63  1.2.2.1       tls 	error = drm_guarantee_initialized();
     64  1.2.2.1       tls 	if (error)
     65  1.2.2.1       tls 		return error;
     66  1.2.2.1       tls 
     67  1.2.2.1       tls 	i915_drm_driver->num_ioctls = i915_max_ioctl;
     68  1.2.2.1       tls 	i915_drm_driver->driver_features |= DRIVER_MODESET;
     69  1.2.2.1       tls 	i915_drm_driver->driver_features &= ~DRIVER_USE_AGP;
     70  1.2.2.1       tls 
     71  1.2.2.1       tls 	error = drm_pci_init(i915_drm_driver, NULL);
     72  1.2.2.1       tls 	if (error) {
     73  1.2.2.1       tls 		aprint_error("i915drmkms: failed to init pci: %d\n",
     74  1.2.2.1       tls 		    error);
     75  1.2.2.1       tls 		return error;
     76  1.2.2.1       tls 	}
     77  1.2.2.1       tls 
     78  1.2.2.1       tls 	return 0;
     79  1.2.2.1       tls }
     80  1.2.2.1       tls 
     81  1.2.2.1       tls int	i915drmkms_guarantee_initialized(void); /* XXX */
     82  1.2.2.1       tls int
     83  1.2.2.1       tls i915drmkms_guarantee_initialized(void)
     84  1.2.2.1       tls {
     85  1.2.2.1       tls #ifdef _MODULE
     86  1.2.2.1       tls 	return 0;
     87  1.2.2.1       tls #else
     88  1.2.2.1       tls 	static ONCE_DECL(i915drmkms_init_once);
     89  1.2.2.1       tls 
     90  1.2.2.1       tls 	return RUN_ONCE(&i915drmkms_init_once, &i915drmkms_init);
     91  1.2.2.1       tls #endif
     92  1.2.2.1       tls }
     93  1.2.2.1       tls 
     94  1.2.2.1       tls static void
     95  1.2.2.1       tls i915drmkms_fini(void)
     96  1.2.2.1       tls {
     97  1.2.2.1       tls 
     98  1.2.2.1       tls 	drm_pci_exit(i915_drm_driver, NULL);
     99  1.2.2.1       tls }
    100      1.2  riastrad 
    101      1.2  riastrad static int
    102      1.2  riastrad i915drmkms_modcmd(modcmd_t cmd, void *arg __unused)
    103      1.2  riastrad {
    104      1.2  riastrad 	int error;
    105      1.2  riastrad 
    106      1.2  riastrad 	switch (cmd) {
    107      1.2  riastrad 	case MODULE_CMD_INIT:
    108      1.2  riastrad 		/* XXX Kludge it up...  Must happen before attachment.  */
    109  1.2.2.1       tls #ifdef _MODULE
    110  1.2.2.1       tls 		error = i915drmkms_init();
    111  1.2.2.1       tls #else
    112  1.2.2.1       tls 		error = i915drmkms_guarantee_initialized();
    113  1.2.2.1       tls #endif
    114      1.2  riastrad 		if (error) {
    115  1.2.2.1       tls 			aprint_error("i915drmkms: failed to initialize: %d\n",
    116      1.2  riastrad 			    error);
    117      1.2  riastrad 			return error;
    118      1.2  riastrad 		}
    119      1.2  riastrad #ifdef _MODULE
    120      1.2  riastrad 		error = config_init_component(cfdriver_ioconf_i915drmkms,
    121      1.2  riastrad 		    cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms);
    122      1.2  riastrad 		if (error) {
    123      1.2  riastrad 			aprint_error("i915drmkms: failed to init component"
    124      1.2  riastrad 			    ": %d\n", error);
    125  1.2.2.1       tls 			i915drmkms_fini();
    126      1.2  riastrad 			return error;
    127      1.2  riastrad 		}
    128      1.2  riastrad #endif
    129      1.2  riastrad 		return 0;
    130      1.2  riastrad 
    131      1.2  riastrad 	case MODULE_CMD_FINI:
    132      1.2  riastrad #ifdef _MODULE
    133      1.2  riastrad 		error = config_fini_component(cfdriver_ioconf_i915drmkms,
    134      1.2  riastrad 		    cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms);
    135      1.2  riastrad 		if (error) {
    136      1.2  riastrad 			aprint_error("i915drmkms: failed to fini component"
    137      1.2  riastrad 			    ": %d\n", error);
    138      1.2  riastrad 			return error;
    139      1.2  riastrad 		}
    140      1.2  riastrad #endif
    141  1.2.2.1       tls 		i915drmkms_fini();
    142      1.2  riastrad 		return 0;
    143      1.2  riastrad 
    144      1.2  riastrad 	default:
    145      1.2  riastrad 		return ENOTTY;
    146      1.2  riastrad 	}
    147      1.2  riastrad }
    148