2 * Copyright 2012 Red Hat Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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25 #include <subdev/mc.h>
28 nouveau_mc_intr(int irq, void *arg)
30 struct nouveau_mc *pmc = arg;
31 const struct nouveau_mc_intr *map = pmc->intr_map;
32 struct nouveau_subdev *unit;
35 intr = stat = nv_rd32(pmc, 0x000100);
36 while (stat && map->stat) {
37 if (stat & map->stat) {
38 unit = nouveau_subdev(pmc, map->unit);
39 if (unit && unit->intr)
47 nv_error(pmc, "unknown intr 0x%08x\n", stat);
50 return stat ? IRQ_HANDLED : IRQ_NONE;
54 _nouveau_mc_fini(struct nouveau_object *object, bool suspend)
56 struct nouveau_mc *pmc = (void *)object;
57 nv_wr32(pmc, 0x000140, 0x00000000);
58 return nouveau_subdev_fini(&pmc->base, suspend);
62 _nouveau_mc_init(struct nouveau_object *object)
64 struct nouveau_mc *pmc = (void *)object;
65 int ret = nouveau_subdev_init(&pmc->base);
68 nv_wr32(pmc, 0x000140, 0x00000001);
73 _nouveau_mc_dtor(struct nouveau_object *object)
75 struct nouveau_device *device = nv_device(object);
76 struct nouveau_mc *pmc = (void *)object;
77 free_irq(device->pdev->irq, pmc);
78 nouveau_subdev_destroy(&pmc->base);
82 nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine,
83 struct nouveau_oclass *oclass,
84 const struct nouveau_mc_intr *intr_map,
85 int length, void **pobject)
87 struct nouveau_device *device = nv_device(parent);
88 struct nouveau_mc *pmc;
91 ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PMC",
92 "master", length, pobject);
97 pmc->intr_map = intr_map;
99 ret = request_irq(device->pdev->irq, nouveau_mc_intr,
100 IRQF_SHARED, "nouveau", pmc);