subdev/pmu/gm200.c

0001 /*
0002  * Copyright 2016 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 <bskeggs@redhat.com>
0023  */
0024 #include "priv.h"
0025
0026 static int
0027 gm200_pmu_flcn_reset(struct nvkm_falcon *falcon)
0028 {
0029     struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
0030
0031     nvkm_falcon_wr32(falcon, 0x014, 0x0000ffff);
0032     pmu->func->reset(pmu);
0033     return nvkm_falcon_enable(falcon);
0034 }
0035
0036 const struct nvkm_falcon_func
0037 gm200_pmu_flcn = {
0038     .debug = 0xc08,
0039     .fbif = 0xe00,
0040     .load_imem = nvkm_falcon_v1_load_imem,
0041     .load_dmem = nvkm_falcon_v1_load_dmem,
0042     .read_dmem = nvkm_falcon_v1_read_dmem,
0043     .bind_context = nvkm_falcon_v1_bind_context,
0044     .wait_for_halt = nvkm_falcon_v1_wait_for_halt,
0045     .clear_interrupt = nvkm_falcon_v1_clear_interrupt,
0046     .set_start_addr = nvkm_falcon_v1_set_start_addr,
0047     .start = nvkm_falcon_v1_start,
0048     .enable = nvkm_falcon_v1_enable,
0049     .disable = nvkm_falcon_v1_disable,
0050     .reset = gm200_pmu_flcn_reset,
0051     .cmdq = { 0x4a0, 0x4b0, 4 },
0052     .msgq = { 0x4c8, 0x4cc, 0 },
0053 };
0054
0055 static const struct nvkm_pmu_func
0056 gm200_pmu = {
0057     .flcn = &gm200_pmu_flcn,
0058     .enabled = gf100_pmu_enabled,
0059     .reset = gf100_pmu_reset,
0060 };
0061
0062
0063 int
0064 gm200_pmu_nofw(struct nvkm_pmu *pmu, int ver, const struct nvkm_pmu_fwif *fwif)
0065 {
0066     nvkm_warn(&pmu->subdev, "firmware unavailable\n");
0067     return 0;
0068 }
0069
0070 static const struct nvkm_pmu_fwif
0071 gm200_pmu_fwif[] = {
0072     { -1, gm200_pmu_nofw, &gm200_pmu },
0073     {}
0074 };
0075
0076 int
0077 gm200_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0078           struct nvkm_pmu **ppmu)
0079 {
0080     return nvkm_pmu_new_(gm200_pmu_fwif, device, type, inst, ppmu);
0081 }