base.c

  1/*
  2 * Copyright 2015 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
 23 */
 24#include "priv.h"
 25
 26#include <engine/fifo.h>
 27
 28u32
 29nvkm_gr_ctxsw_inst(struct nvkm_device *device)
 30{
 31	struct nvkm_gr *gr = device->gr;
 32	if (gr && gr->func->ctxsw.inst)
 33		return gr->func->ctxsw.inst(gr);
 34	return 0;
 35}
 36
 37int
 38nvkm_gr_ctxsw_resume(struct nvkm_device *device)
 39{
 40	struct nvkm_gr *gr = device->gr;
 41	if (gr && gr->func->ctxsw.resume)
 42		return gr->func->ctxsw.resume(gr);
 43	return 0;
 44}
 45
 46int
 47nvkm_gr_ctxsw_pause(struct nvkm_device *device)
 48{
 49	struct nvkm_gr *gr = device->gr;
 50	if (gr && gr->func->ctxsw.pause)
 51		return gr->func->ctxsw.pause(gr);
 52	return 0;
 53}
 54
 55static bool
 56nvkm_gr_chsw_load(struct nvkm_engine *engine)
 57{
 58	struct nvkm_gr *gr = nvkm_gr(engine);
 59	if (gr->func->chsw_load)
 60		return gr->func->chsw_load(gr);
 61	return false;
 62}
 63
 64static void
 65nvkm_gr_tile(struct nvkm_engine *engine, int region, struct nvkm_fb_tile *tile)
 66{
 67	struct nvkm_gr *gr = nvkm_gr(engine);
 68	if (gr->func->tile)
 69		gr->func->tile(gr, region, tile);
 70}
 71
 72u64
 73nvkm_gr_units(struct nvkm_gr *gr)
 74{
 75	if (gr->func->units)
 76		return gr->func->units(gr);
 77	return 0;
 78}
 79
 80int
 81nvkm_gr_tlb_flush(struct nvkm_gr *gr)
 82{
 83	if (gr->func->tlb_flush)
 84		return gr->func->tlb_flush(gr);
 85	return -ENODEV;
 86}
 87
 88static int
 89nvkm_gr_oclass_get(struct nvkm_oclass *oclass, int index)
 90{
 91	struct nvkm_gr *gr = nvkm_gr(oclass->engine);
 92	int c = 0;
 93
 94	if (gr->func->object_get) {
 95		int ret = gr->func->object_get(gr, index, &oclass->base);
 96		if (oclass->base.oclass)
 97			return index;
 98		return ret;
 99	}
100
101	while (gr->func->sclass[c].oclass) {
102		if (c++ == index) {
103			oclass->base = gr->func->sclass[index];
104			return index;
105		}
106	}
107
108	return c;
109}
110
111static int
112nvkm_gr_cclass_new(struct nvkm_chan *chan, const struct nvkm_oclass *oclass,
113		   struct nvkm_object **pobject)
114{
115	struct nvkm_gr *gr = nvkm_gr(oclass->engine);
116	if (gr->func->chan_new)
117		return gr->func->chan_new(gr, chan, oclass, pobject);
118	return 0;
119}
120
121static void
122nvkm_gr_intr(struct nvkm_engine *engine)
123{
124	struct nvkm_gr *gr = nvkm_gr(engine);
125	gr->func->intr(gr);
126}
127
128static int
129nvkm_gr_nonstall(struct nvkm_engine *engine)
130{
131	struct nvkm_gr *gr = nvkm_gr(engine);
132
133	if (gr->func->nonstall)
134		return gr->func->nonstall(gr);
135
136	return -EINVAL;
137}
138
139static int
140nvkm_gr_oneinit(struct nvkm_engine *engine)
141{
142	struct nvkm_gr *gr = nvkm_gr(engine);
143	if (gr->func->oneinit)
144		return gr->func->oneinit(gr);
145	return 0;
146}
147
148static int
149nvkm_gr_reset(struct nvkm_engine *engine)
150{
151	struct nvkm_gr *gr = nvkm_gr(engine);
152
153	if (gr->func->reset)
154		return gr->func->reset(gr);
155
156	return -ENOSYS;
157}
158
159static int
160nvkm_gr_init(struct nvkm_engine *engine)
161{
162	struct nvkm_gr *gr = nvkm_gr(engine);
163
164	if (gr->func->init)
165		return gr->func->init(gr);
166
167	return 0;
168}
169
170static int
171nvkm_gr_fini(struct nvkm_engine *engine, enum nvkm_suspend_state suspend)
172{
173	struct nvkm_gr *gr = nvkm_gr(engine);
174	if (gr->func->fini)
175		return gr->func->fini(gr, suspend != NVKM_POWEROFF);
176	return 0;
177}
178
179static void *
180nvkm_gr_dtor(struct nvkm_engine *engine)
181{
182	struct nvkm_gr *gr = nvkm_gr(engine);
183	if (gr->func->dtor)
184		return gr->func->dtor(gr);
185	return gr;
186}
187
188static const struct nvkm_engine_func
189nvkm_gr = {
190	.dtor = nvkm_gr_dtor,
191	.oneinit = nvkm_gr_oneinit,
192	.init = nvkm_gr_init,
193	.fini = nvkm_gr_fini,
194	.reset = nvkm_gr_reset,
195	.nonstall = nvkm_gr_nonstall,
196	.intr = nvkm_gr_intr,
197	.tile = nvkm_gr_tile,
198	.chsw_load = nvkm_gr_chsw_load,
199	.fifo.cclass = nvkm_gr_cclass_new,
200	.fifo.sclass = nvkm_gr_oclass_get,
201};
202
203int
204nvkm_gr_ctor(const struct nvkm_gr_func *func, struct nvkm_device *device,
205	     enum nvkm_subdev_type type, int inst, bool enable, struct nvkm_gr *gr)
206{
207	gr->func = func;
208	return nvkm_engine_ctor(&nvkm_gr, device, type, inst, enable, &gr->engine);
209}