1/*
 2 * Copyright 2014-2016 IBM Corp.
 3 *
 4 * This program is free software; you can redistribute it and/or
 5 * modify it under the terms of the GNU General Public License
 6 * as published by the Free Software Foundation; either version
 7 * 2 of the License, or (at your option) any later version.
 8 */
 9
10#include <linux/pci.h>
11#include "cxl.h"
12
13bool _cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu)
14{
15	struct cxl_context *ctx;
16
17	/*
18	 * Allocate a context to do cxl things to. This is used for interrupts
19	 * in the peer model using a real phb, and if we eventually do DMA ops
20	 * in the virtual phb, we'll need a default context to attach them to.
21	 */
22	ctx = cxl_dev_context_init(dev);
23	if (IS_ERR(ctx))
24		return false;
25	dev->dev.archdata.cxl_ctx = ctx;
26
27	return (cxl_ops->afu_check_and_enable(afu) == 0);
28}
29/* exported via cxl_base */
30
31void _cxl_pci_disable_device(struct pci_dev *dev)
32{
33	struct cxl_context *ctx = cxl_get_context(dev);
34
35	if (ctx) {
36		if (ctx->status == STARTED) {
37			dev_err(&dev->dev, "Default context started\n");
38			return;
39		}
40		dev->dev.archdata.cxl_ctx = NULL;
41		cxl_release_context(ctx);
42	}
43}
44/* exported via cxl_base */