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i915_module.c revision 1.3.4.2
      1  1.3.4.2  tls /*	$NetBSD: i915_module.c,v 1.3.4.2 2014/08/20 00:04:20 tls Exp $	*/
      2  1.3.4.2  tls 
      3  1.3.4.2  tls /*-
      4  1.3.4.2  tls  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  1.3.4.2  tls  * All rights reserved.
      6  1.3.4.2  tls  *
      7  1.3.4.2  tls  * This code is derived from software contributed to The NetBSD Foundation
      8  1.3.4.2  tls  * by Taylor R. Campbell.
      9  1.3.4.2  tls  *
     10  1.3.4.2  tls  * Redistribution and use in source and binary forms, with or without
     11  1.3.4.2  tls  * modification, are permitted provided that the following conditions
     12  1.3.4.2  tls  * are met:
     13  1.3.4.2  tls  * 1. Redistributions of source code must retain the above copyright
     14  1.3.4.2  tls  *    notice, this list of conditions and the following disclaimer.
     15  1.3.4.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.3.4.2  tls  *    notice, this list of conditions and the following disclaimer in the
     17  1.3.4.2  tls  *    documentation and/or other materials provided with the distribution.
     18  1.3.4.2  tls  *
     19  1.3.4.2  tls  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.3.4.2  tls  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.3.4.2  tls  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.3.4.2  tls  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.3.4.2  tls  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.3.4.2  tls  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.3.4.2  tls  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.3.4.2  tls  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.3.4.2  tls  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.3.4.2  tls  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.3.4.2  tls  * POSSIBILITY OF SUCH DAMAGE.
     30  1.3.4.2  tls  */
     31  1.3.4.2  tls 
     32  1.3.4.2  tls #include <sys/cdefs.h>
     33  1.3.4.2  tls __KERNEL_RCSID(0, "$NetBSD: i915_module.c,v 1.3.4.2 2014/08/20 00:04:20 tls Exp $");
     34  1.3.4.2  tls 
     35  1.3.4.2  tls #include <sys/types.h>
     36  1.3.4.2  tls #include <sys/module.h>
     37  1.3.4.2  tls #ifndef _MODULE
     38  1.3.4.2  tls #include <sys/once.h>
     39  1.3.4.2  tls #endif
     40  1.3.4.2  tls #include <sys/systm.h>
     41  1.3.4.2  tls 
     42  1.3.4.2  tls #include <drm/drmP.h>
     43  1.3.4.2  tls 
     44  1.3.4.2  tls #include "i915_drv.h"
     45  1.3.4.2  tls 
     46  1.3.4.2  tls MODULE(MODULE_CLASS_DRIVER, i915drmkms, "drmkms,drmkms_pci"); /* XXX drmkms_i2c */
     47  1.3.4.2  tls 
     48  1.3.4.2  tls #ifdef _MODULE
     49  1.3.4.2  tls #include "ioconf.c"
     50  1.3.4.2  tls #endif
     51  1.3.4.2  tls 
     52  1.3.4.2  tls /* XXX Kludge to get these from i915_drv.c.  */
     53  1.3.4.2  tls extern struct drm_driver *const i915_drm_driver;
     54  1.3.4.2  tls extern const struct pci_device_id *const i915_device_ids;
     55  1.3.4.2  tls extern const size_t i915_n_device_ids;
     56  1.3.4.2  tls 
     57  1.3.4.2  tls static int
     58  1.3.4.2  tls i915drmkms_init(void)
     59  1.3.4.2  tls {
     60  1.3.4.2  tls 	extern int drm_guarantee_initialized(void);
     61  1.3.4.2  tls 	int error;
     62  1.3.4.2  tls 
     63  1.3.4.2  tls 	error = drm_guarantee_initialized();
     64  1.3.4.2  tls 	if (error)
     65  1.3.4.2  tls 		return error;
     66  1.3.4.2  tls 
     67  1.3.4.2  tls 	i915_drm_driver->num_ioctls = i915_max_ioctl;
     68  1.3.4.2  tls 	i915_drm_driver->driver_features |= DRIVER_MODESET;
     69  1.3.4.2  tls 	i915_drm_driver->driver_features &= ~DRIVER_USE_AGP;
     70  1.3.4.2  tls 
     71  1.3.4.2  tls 	error = drm_pci_init(i915_drm_driver, NULL);
     72  1.3.4.2  tls 	if (error) {
     73  1.3.4.2  tls 		aprint_error("i915drmkms: failed to init pci: %d\n",
     74  1.3.4.2  tls 		    error);
     75  1.3.4.2  tls 		return error;
     76  1.3.4.2  tls 	}
     77  1.3.4.2  tls 
     78  1.3.4.2  tls 	return 0;
     79  1.3.4.2  tls }
     80  1.3.4.2  tls 
     81  1.3.4.2  tls int	i915drmkms_guarantee_initialized(void); /* XXX */
     82  1.3.4.2  tls int
     83  1.3.4.2  tls i915drmkms_guarantee_initialized(void)
     84  1.3.4.2  tls {
     85  1.3.4.2  tls #ifdef _MODULE
     86  1.3.4.2  tls 	return 0;
     87  1.3.4.2  tls #else
     88  1.3.4.2  tls 	static ONCE_DECL(i915drmkms_init_once);
     89  1.3.4.2  tls 
     90  1.3.4.2  tls 	return RUN_ONCE(&i915drmkms_init_once, &i915drmkms_init);
     91  1.3.4.2  tls #endif
     92  1.3.4.2  tls }
     93  1.3.4.2  tls 
     94  1.3.4.2  tls static void
     95  1.3.4.2  tls i915drmkms_fini(void)
     96  1.3.4.2  tls {
     97  1.3.4.2  tls 
     98  1.3.4.2  tls 	drm_pci_exit(i915_drm_driver, NULL);
     99  1.3.4.2  tls }
    100  1.3.4.2  tls 
    101  1.3.4.2  tls static int
    102  1.3.4.2  tls i915drmkms_modcmd(modcmd_t cmd, void *arg __unused)
    103  1.3.4.2  tls {
    104  1.3.4.2  tls 	int error;
    105  1.3.4.2  tls 
    106  1.3.4.2  tls 	switch (cmd) {
    107  1.3.4.2  tls 	case MODULE_CMD_INIT:
    108  1.3.4.2  tls 		/* XXX Kludge it up...  Must happen before attachment.  */
    109  1.3.4.2  tls #ifdef _MODULE
    110  1.3.4.2  tls 		error = i915drmkms_init();
    111  1.3.4.2  tls #else
    112  1.3.4.2  tls 		error = i915drmkms_guarantee_initialized();
    113  1.3.4.2  tls #endif
    114  1.3.4.2  tls 		if (error) {
    115  1.3.4.2  tls 			aprint_error("i915drmkms: failed to initialize: %d\n",
    116  1.3.4.2  tls 			    error);
    117  1.3.4.2  tls 			return error;
    118  1.3.4.2  tls 		}
    119  1.3.4.2  tls #ifdef _MODULE
    120  1.3.4.2  tls 		error = config_init_component(cfdriver_ioconf_i915drmkms,
    121  1.3.4.2  tls 		    cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms);
    122  1.3.4.2  tls 		if (error) {
    123  1.3.4.2  tls 			aprint_error("i915drmkms: failed to init component"
    124  1.3.4.2  tls 			    ": %d\n", error);
    125  1.3.4.2  tls 			i915drmkms_fini();
    126  1.3.4.2  tls 			return error;
    127  1.3.4.2  tls 		}
    128  1.3.4.2  tls #endif
    129  1.3.4.2  tls 		return 0;
    130  1.3.4.2  tls 
    131  1.3.4.2  tls 	case MODULE_CMD_FINI:
    132  1.3.4.2  tls #ifdef _MODULE
    133  1.3.4.2  tls 		error = config_fini_component(cfdriver_ioconf_i915drmkms,
    134  1.3.4.2  tls 		    cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms);
    135  1.3.4.2  tls 		if (error) {
    136  1.3.4.2  tls 			aprint_error("i915drmkms: failed to fini component"
    137  1.3.4.2  tls 			    ": %d\n", error);
    138  1.3.4.2  tls 			return error;
    139  1.3.4.2  tls 		}
    140  1.3.4.2  tls #endif
    141  1.3.4.2  tls 		i915drmkms_fini();
    142  1.3.4.2  tls 		return 0;
    143  1.3.4.2  tls 
    144  1.3.4.2  tls 	default:
    145  1.3.4.2  tls 		return ENOTTY;
    146  1.3.4.2  tls 	}
    147  1.3.4.2  tls }
    148