media: ov5640: Add Omnivision OV5640 support
[linux-2.6.git] / drivers / xen / features.c
1 /******************************************************************************
2  * features.c
3  *
4  * Xen feature flags.
5  *
6  * Copyright (c) 2006, Ian Campbell, XenSource Inc.
7  */
8 #include <linux/types.h>
9 #include <linux/cache.h>
10 #include <linux/module.h>
11
12 #include <asm/xen/hypercall.h>
13
14 #include <xen/interface/xen.h>
15 #include <xen/interface/version.h>
16 #include <xen/features.h>
17
18 u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly;
19 EXPORT_SYMBOL_GPL(xen_features);
20
21 void xen_setup_features(void)
22 {
23         struct xen_feature_info fi;
24         int i, j;
25
26         for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) {
27                 fi.submap_idx = i;
28                 if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0)
29                         break;
30                 for (j = 0; j < 32; j++)
31                         xen_features[i * 32 + j] = !!(fi.submap & 1<<j);
32         }
33 }