subdev/mc/nv04.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 const struct nvkm_mc_map
0027 nv04_mc_reset[] = {
0028     { 0x00001000, NVKM_ENGINE_GR },
0029     { 0x00000100, NVKM_ENGINE_FIFO },
0030     {}
0031 };
0032
0033 static const struct nvkm_mc_map
0034 nv04_mc_intr[] = {
0035     { 0x01010000, NVKM_ENGINE_DISP },
0036     { 0x00001000, NVKM_ENGINE_GR },
0037     { 0x00000100, NVKM_ENGINE_FIFO },
0038     { 0x10000000, NVKM_SUBDEV_BUS },
0039     { 0x00100000, NVKM_SUBDEV_TIMER },
0040     {}
0041 };
0042
0043 void
0044 nv04_mc_intr_unarm(struct nvkm_mc *mc)
0045 {
0046     struct nvkm_device *device = mc->subdev.device;
0047     nvkm_wr32(device, 0x000140, 0x00000000);
0048     nvkm_rd32(device, 0x000140);
0049 }
0050
0051 void
0052 nv04_mc_intr_rearm(struct nvkm_mc *mc)
0053 {
0054     struct nvkm_device *device = mc->subdev.device;
0055     nvkm_wr32(device, 0x000140, 0x00000001);
0056 }
0057
0058 u32
0059 nv04_mc_intr_stat(struct nvkm_mc *mc)
0060 {
0061     return nvkm_rd32(mc->subdev.device, 0x000100);
0062 }
0063
0064 void
0065 nv04_mc_init(struct nvkm_mc *mc)
0066 {
0067     struct nvkm_device *device = mc->subdev.device;
0068     nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
0069     nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */
0070 }
0071
0072 static const struct nvkm_mc_func
0073 nv04_mc = {
0074     .init = nv04_mc_init,
0075     .intr = nv04_mc_intr,
0076     .intr_unarm = nv04_mc_intr_unarm,
0077     .intr_rearm = nv04_mc_intr_rearm,
0078     .intr_stat = nv04_mc_intr_stat,
0079     .reset = nv04_mc_reset,
0080 };
0081
0082 int
0083 nv04_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
0084 {
0085     return nvkm_mc_new_(&nv04_mc, device, type, inst, pmc);
0086 }