Linux Kernel  3.7.1
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base.c
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1 /*
2  * Copyright 2012 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  */
24 
25 #include <subdev/mc.h>
26 
27 void
29 {
30  struct nouveau_mc *pmc = nouveau_mc(subdev);
31  const struct nouveau_mc_intr *map = pmc->intr_map;
32  struct nouveau_subdev *unit;
33  u32 stat;
34 
35  stat = nv_rd32(pmc, 0x000100);
36  while (stat && map->stat) {
37  if (stat & map->stat) {
38  unit = nouveau_subdev(subdev, map->unit);
39  if (unit && unit->intr)
40  unit->intr(unit);
41  stat &= ~map->stat;
42  }
43  map++;
44  }
45 
46  if (stat) {
47  nv_error(pmc, "unknown intr 0x%08x\n", stat);
48  }
49 }