subdev/mc/ga100.c

0001 /*
0002  * Copyright 2021 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 #include "priv.h"
0023
0024 static void
0025 ga100_mc_intr_unarm(struct nvkm_mc *mc)
0026 {
0027     nvkm_wr32(mc->subdev.device, 0xb81610, 0x00000004);
0028 }
0029
0030 static void
0031 ga100_mc_intr_rearm(struct nvkm_mc *mc)
0032 {
0033     nvkm_wr32(mc->subdev.device, 0xb81608, 0x00000004);
0034 }
0035
0036 static void
0037 ga100_mc_intr_mask(struct nvkm_mc *mc, u32 mask, u32 intr)
0038 {
0039     nvkm_wr32(mc->subdev.device, 0xb81210,          mask & intr );
0040     nvkm_wr32(mc->subdev.device, 0xb81410, mask & ~(mask & intr));
0041 }
0042
0043 static u32
0044 ga100_mc_intr_stat(struct nvkm_mc *mc)
0045 {
0046     u32 intr_top = nvkm_rd32(mc->subdev.device, 0xb81600), intr = 0x00000000;
0047     if (intr_top & 0x00000004)
0048         intr = nvkm_mask(mc->subdev.device, 0xb81010, 0x00000000, 0x00000000);
0049     return intr;
0050 }
0051
0052 static void
0053 ga100_mc_init(struct nvkm_mc *mc)
0054 {
0055     nv50_mc_init(mc);
0056     nvkm_wr32(mc->subdev.device, 0xb81210, 0xffffffff);
0057 }
0058
0059 static const struct nvkm_mc_func
0060 ga100_mc = {
0061     .init = ga100_mc_init,
0062     .intr = gp100_mc_intr,
0063     .intr_unarm = ga100_mc_intr_unarm,
0064     .intr_rearm = ga100_mc_intr_rearm,
0065     .intr_mask = ga100_mc_intr_mask,
0066     .intr_stat = ga100_mc_intr_stat,
0067     .reset = gk104_mc_reset,
0068 };
0069
0070 int
0071 ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
0072 {
0073     return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc);
0074 }