core507d.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 "core.h"
 23#include "head.h"
 24
 25#include <nvif/if0014.h>
 26#include <nvif/push507c.h>
 27#include <nvif/timer.h>
 28
 29#include <nvhw/class/cl507d.h>
 30
 31#include "nouveau_bo.h"
 32
 33int
 34core507d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
 35{
 36	struct nvif_push *push = &core->chan.push;
 37	int ret;
 38
 39	if ((ret = PUSH_WAIT(push, (ntfy ? 2 : 0) + 3)))
 40		return ret;
 41
 42	if (ntfy) {
 43		PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL,
 44			  NVDEF(NV507D, SET_NOTIFIER_CONTROL, MODE, WRITE) |
 45			  NVVAL(NV507D, SET_NOTIFIER_CONTROL, OFFSET, NV50_DISP_CORE_NTFY >> 2) |
 46			  NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE));
 47	}
 48
 49	PUSH_MTHD(push, NV507D, UPDATE, interlock[NV50_DISP_INTERLOCK_BASE] |
 50					interlock[NV50_DISP_INTERLOCK_OVLY] |
 51		  NVDEF(NV507D, UPDATE, NOT_DRIVER_FRIENDLY, FALSE) |
 52		  NVDEF(NV507D, UPDATE, NOT_DRIVER_UNFRIENDLY, FALSE) |
 53		  NVDEF(NV507D, UPDATE, INHIBIT_INTERRUPTS, FALSE),
 54
 55				SET_NOTIFIER_CONTROL,
 56		  NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, DISABLE));
 57
 58	return PUSH_KICK(push);
 59}
 60
 61int
 62core507d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
 63			struct nvif_device *device)
 64{
 65	s64 time = nvif_msec(device, 2000ULL,
 66		if (NVBO_TD32(bo, offset, NV_DISP_CORE_NOTIFIER_1, COMPLETION_0, DONE, ==, TRUE))
 67			break;
 68		usleep_range(1, 2);
 69	);
 70	return time < 0 ? time : 0;
 71}
 72
 73void
 74core507d_ntfy_init(struct nouveau_bo *bo, u32 offset)
 75{
 76	NVBO_WR32(bo, offset, NV_DISP_CORE_NOTIFIER_1, COMPLETION_0,
 77			NVDEF(NV_DISP_CORE_NOTIFIER_1, COMPLETION_0, DONE, FALSE));
 78}
 79
 80int
 81core507d_read_caps(struct nv50_disp *disp)
 82{
 83	struct nvif_push *push = &disp->core->chan.push;
 84	int ret;
 85
 86	ret = PUSH_WAIT(push, 6);
 87	if (ret)
 88		return ret;
 89
 90	PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL,
 91		  NVDEF(NV507D, SET_NOTIFIER_CONTROL, MODE, WRITE) |
 92		  NVVAL(NV507D, SET_NOTIFIER_CONTROL, OFFSET, NV50_DISP_CORE_NTFY >> 2) |
 93		  NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE));
 94
 95	PUSH_MTHD(push, NV507D, GET_CAPABILITIES, 0x00000000);
 96
 97	PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL,
 98		  NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, DISABLE));
 99
100	return PUSH_KICK(push);
101}
102
103int
104core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp)
105{
106	struct nv50_core *core = disp->core;
107	struct nouveau_bo *bo = disp->sync;
108	s64 time;
109	int ret;
110
111	NVBO_WR32(bo, NV50_DISP_CORE_NTFY, NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1,
112				     NVDEF(NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, FALSE));
113
114	ret = core507d_read_caps(disp);
115	if (ret < 0)
116		return ret;
117
118	time = nvif_msec(core->chan.base.device, 2000ULL,
119			 if (NVBO_TD32(bo, NV50_DISP_CORE_NTFY,
120				       NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, ==, TRUE))
121				 break;
122			 usleep_range(1, 2);
123			 );
124	if (time < 0)
125		NV_ERROR(drm, "core caps notifier timeout\n");
126
127	return 0;
128}
129
130int
131core507d_init(struct nv50_core *core)
132{
133	struct nvif_push *push = &core->chan.push;
134	int ret;
135
136	if ((ret = PUSH_WAIT(push, 2)))
137		return ret;
138
139	PUSH_MTHD(push, NV507D, SET_CONTEXT_DMA_NOTIFIER, core->chan.sync.handle);
140	return PUSH_KICK(push);
141}
142
143static const struct nv50_core_func
144core507d = {
145	.init = core507d_init,
146	.ntfy_init = core507d_ntfy_init,
147	.caps_init = core507d_caps_init,
148	.ntfy_wait_done = core507d_ntfy_wait_done,
149	.update = core507d_update,
150	.head = &head507d,
151	.dac = &dac507d,
152	.sor = &sor507d,
153	.pior = &pior507d,
154};
155
156int
157core507d_new_(const struct nv50_core_func *func, struct nouveau_drm *drm,
158	      s32 oclass, struct nv50_core **pcore)
159{
160	struct nvif_disp_chan_v0 args = {};
161	struct nv50_disp *disp = nv50_disp(drm->dev);
162	struct nv50_core *core;
163	int ret;
164
165	if (!(core = *pcore = kzalloc(sizeof(*core), GFP_KERNEL)))
166		return -ENOMEM;
167	core->func = func;
168	core->disp = disp;
169
170	ret = nv50_dmac_create(drm,
171			       &oclass, 0, &args, sizeof(args),
172			       disp->sync->offset, &core->chan);
173	if (ret) {
174		NV_ERROR(drm, "core%04x allocation failed: %d\n", oclass, ret);
175		return ret;
176	}
177
178	return 0;
179}
180
181int
182core507d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
183{
184	return core507d_new_(&core507d, drm, oclass, pcore);
185}