sys/dev/drm/linux_compat.c

   1 /*-
   2  * Copyright (c) 2010 Isilon Systems, Inc.
   3  * Copyright (c) 2010 iX Systems, Inc.
   4  * Copyright (c) 2010 Panasas, Inc.
   5  * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
   6  * Copyright (c) 2020 François Tigeot <ftigeot@wolfpond.org>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice unmodified, this list of conditions, and the following
  14  *    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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include <sys/param.h>
  32 #include <linux/rbtree.h>
  33
  34 int
  35 panic_cmp(struct rb_node *one, struct rb_node *two)
  36 {
  37         panic("no cmp");
  38 }
  39
  40 RB_GENERATE(linux_root, rb_node, __entry, panic_cmp);
  41
  42 #include <linux/string.h>
  43 #include <linux/slab.h>
  44
  45 void *
  46 kmemdup(const void *src, size_t len, gfp_t gfp)
  47 {
  48         void *dst;
  49
  50         dst = kmalloc(len, M_DRM, gfp);
  51         if (dst)
  52                 memcpy(dst, src, len);
  53         return (dst);
  54 }
  55
  56 #include <linux/fb.h>
  57
  58 struct fb_info *
  59 framebuffer_alloc(size_t size, struct device *dev)
  60 {
  61         return kzalloc(sizeof(struct fb_info), GFP_KERNEL);
  62 }
  63
  64 void
  65 framebuffer_release(struct fb_info *info)
  66 {
  67         kfree(info);
  68 }
  69
  70 #include <asm/processor.h>
  71
  72 struct cpuinfo_x86 boot_cpu_data;
  73
  74 static int
  75 init_boot_cpu_data(void *arg)
  76 {
  77         boot_cpu_data.x86_clflush_size = cpu_clflush_line_size;
  78
  79         return 0;
  80 }
  81
  82 SYSINIT(boot_cpu_data_init, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, init_boot_cpu_data, NULL);
  83
  84 #include <linux/sched.h>
  85
  86 pid_t get_task_pid(struct task_struct *task, enum pid_type type)
  87 {
  88         if (task->dfly_td == NULL)
  89                 return -1;
  90
  91         if (task->dfly_td->td_proc == NULL)
  92                 return -1;
  93
  94         return task->dfly_td->td_proc->p_pid;
  95 }
  96
  97 #include <linux/mm.h>
  98
  99 void
 100 si_meminfo(struct sysinfo *si)
 101 {
 102         si->totalram = physmem;
 103         si->totalhigh = 0;
 104         si->mem_unit = PAGE_SIZE;
 105 }