subdev/bar/tu102.c

0001 /*
0002  * Copyright 2018 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 "gf100.h"
0023
0024 #include <core/memory.h>
0025 #include <subdev/timer.h>
0026
0027 static void
0028 tu102_bar_bar2_wait(struct nvkm_bar *bar)
0029 {
0030     struct nvkm_device *device = bar->subdev.device;
0031     nvkm_msec(device, 2000,
0032         if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
0033             break;
0034     );
0035 }
0036
0037 static void
0038 tu102_bar_bar2_fini(struct nvkm_bar *bar)
0039 {
0040     nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
0041 }
0042
0043 static void
0044 tu102_bar_bar2_init(struct nvkm_bar *base)
0045 {
0046     struct nvkm_device *device = base->subdev.device;
0047     struct gf100_bar *bar = gf100_bar(base);
0048     u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
0049     if (bar->bar2_halve)
0050         addr |= 0x40000000;
0051     nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
0052 }
0053
0054 static void
0055 tu102_bar_bar1_wait(struct nvkm_bar *bar)
0056 {
0057     struct nvkm_device *device = bar->subdev.device;
0058     nvkm_msec(device, 2000,
0059         if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
0060             break;
0061     );
0062 }
0063
0064 static void
0065 tu102_bar_bar1_fini(struct nvkm_bar *bar)
0066 {
0067     nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
0068 }
0069
0070 static void
0071 tu102_bar_bar1_init(struct nvkm_bar *base)
0072 {
0073     struct nvkm_device *device = base->subdev.device;
0074     struct gf100_bar *bar = gf100_bar(base);
0075     const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
0076     nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
0077 }
0078
0079 static const struct nvkm_bar_func
0080 tu102_bar = {
0081     .dtor = gf100_bar_dtor,
0082     .oneinit = gf100_bar_oneinit,
0083     .bar1.init = tu102_bar_bar1_init,
0084     .bar1.fini = tu102_bar_bar1_fini,
0085     .bar1.wait = tu102_bar_bar1_wait,
0086     .bar1.vmm = gf100_bar_bar1_vmm,
0087     .bar2.init = tu102_bar_bar2_init,
0088     .bar2.fini = tu102_bar_bar2_fini,
0089     .bar2.wait = tu102_bar_bar2_wait,
0090     .bar2.vmm = gf100_bar_bar2_vmm,
0091     .flush = g84_bar_flush,
0092 };
0093
0094 int
0095 tu102_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0096           struct nvkm_bar **pbar)
0097 {
0098     return gf100_bar_new_(&tu102_bar, device, type, inst, pbar);
0099 }