tu102.c

  1/*
  2 * Copyright 2018 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 */
 22#include "gf100.h"
 23
 24#include <core/memory.h>
 25#include <subdev/gsp.h>
 26#include <subdev/timer.h>
 27
 28static void
 29tu102_bar_bar2_wait(struct nvkm_bar *bar)
 30{
 31	struct nvkm_device *device = bar->subdev.device;
 32	nvkm_msec(device, 2000,
 33		if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
 34			break;
 35	);
 36}
 37
 38static void
 39tu102_bar_bar2_fini(struct nvkm_bar *bar)
 40{
 41	nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
 42}
 43
 44static void
 45tu102_bar_bar2_init(struct nvkm_bar *base)
 46{
 47	struct nvkm_device *device = base->subdev.device;
 48	struct gf100_bar *bar = gf100_bar(base);
 49	u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
 50	if (bar->bar2_halve)
 51		addr |= 0x40000000;
 52	nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
 53}
 54
 55static void
 56tu102_bar_bar1_wait(struct nvkm_bar *bar)
 57{
 58	struct nvkm_device *device = bar->subdev.device;
 59	nvkm_msec(device, 2000,
 60		if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
 61			break;
 62	);
 63}
 64
 65static void
 66tu102_bar_bar1_fini(struct nvkm_bar *bar)
 67{
 68	nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
 69}
 70
 71static void
 72tu102_bar_bar1_init(struct nvkm_bar *base)
 73{
 74	struct nvkm_device *device = base->subdev.device;
 75	struct gf100_bar *bar = gf100_bar(base);
 76	const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
 77	nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
 78}
 79
 80static const struct nvkm_bar_func
 81tu102_bar = {
 82	.dtor = gf100_bar_dtor,
 83	.oneinit = gf100_bar_oneinit,
 84	.bar1.init = tu102_bar_bar1_init,
 85	.bar1.fini = tu102_bar_bar1_fini,
 86	.bar1.wait = tu102_bar_bar1_wait,
 87	.bar1.vmm = gf100_bar_bar1_vmm,
 88	.bar2.init = tu102_bar_bar2_init,
 89	.bar2.fini = tu102_bar_bar2_fini,
 90	.bar2.wait = tu102_bar_bar2_wait,
 91	.bar2.vmm = gf100_bar_bar2_vmm,
 92	.flush = g84_bar_flush,
 93};
 94
 95int
 96tu102_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 97	      struct nvkm_bar **pbar)
 98{
 99	if (nvkm_gsp_rm(device->gsp))
100		return r535_bar_new_(&tu102_bar, device, type, inst, pbar);
101
102	return gf100_bar_new_(&tu102_bar, device, type, inst, pbar);
103}