subdev/mc/nv44.c

0001 /*
0002  * Copyright 2012 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Ben Skeggs
0023  */
0024 #include "priv.h"
0025
0026 void
0027 nv44_mc_init(struct nvkm_mc *mc)
0028 {
0029     struct nvkm_device *device = mc->subdev.device;
0030     u32 tmp = nvkm_rd32(device, 0x10020c);
0031
0032     nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
0033
0034     nvkm_wr32(device, 0x001700, tmp);
0035     nvkm_wr32(device, 0x001704, 0);
0036     nvkm_wr32(device, 0x001708, 0);
0037     nvkm_wr32(device, 0x00170c, tmp);
0038 }
0039
0040 static const struct nvkm_mc_func
0041 nv44_mc = {
0042     .init = nv44_mc_init,
0043     .intr = nv17_mc_intr,
0044     .intr_unarm = nv04_mc_intr_unarm,
0045     .intr_rearm = nv04_mc_intr_rearm,
0046     .intr_stat = nv04_mc_intr_stat,
0047     .reset = nv17_mc_reset,
0048 };
0049
0050 int
0051 nv44_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
0052 {
0053     return nvkm_mc_new_(&nv44_mc, device, type, inst, pmc);
0054 }