cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rsrc_mgr.c (1583B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * rsrc_mgr.c -- Resource management routines and/or wrappers
      4 *
      5 * The initial developer of the original code is David A. Hinds
      6 * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
      7 * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
      8 *
      9 * (C) 1999		David A. Hinds
     10 */
     11
     12#include <linux/slab.h>
     13#include <linux/module.h>
     14#include <linux/kernel.h>
     15
     16#include <pcmcia/ss.h>
     17#include <pcmcia/cistpl.h>
     18#include "cs_internal.h"
     19
     20int static_init(struct pcmcia_socket *s)
     21{
     22	/* the good thing about SS_CAP_STATIC_MAP sockets is
     23	 * that they don't need a resource database */
     24
     25	s->resource_setup_done = 1;
     26
     27	return 0;
     28}
     29
     30struct resource *pcmcia_make_resource(resource_size_t start,
     31					resource_size_t end,
     32					unsigned long flags, const char *name)
     33{
     34	struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
     35
     36	if (res) {
     37		res->name = name;
     38		res->start = start;
     39		res->end = start + end - 1;
     40		res->flags = flags;
     41	}
     42	return res;
     43}
     44
     45static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
     46			unsigned int *base, unsigned int num,
     47			unsigned int align, struct resource **parent)
     48{
     49	if (!s->io_offset)
     50		return -EINVAL;
     51	*base = s->io_offset | (*base & 0x0fff);
     52	*parent = NULL;
     53
     54	return 0;
     55}
     56
     57
     58struct pccard_resource_ops pccard_static_ops = {
     59	.validate_mem = NULL,
     60	.find_io = static_find_io,
     61	.find_mem = NULL,
     62	.init = static_init,
     63	.exit = NULL,
     64};
     65EXPORT_SYMBOL(pccard_static_ops);
     66
     67
     68MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
     69MODULE_LICENSE("GPL");
     70MODULE_ALIAS("rsrc_nonstatic");