ARM: pmu: add support for interrupt-affinity property
[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / nvkm / engine / pm / base.c
blob2006c445938d9493773ef2dbf9bb07d045a67b96
1 /*
2 * Copyright 2013 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Ben Skeggs
24 #include "priv.h"
26 #include <core/client.h>
27 #include <core/device.h>
28 #include <core/option.h>
30 #include <nvif/class.h>
31 #include <nvif/ioctl.h>
32 #include <nvif/unpack.h>
34 #define QUAD_MASK 0x0f
35 #define QUAD_FREE 0x01
37 static struct nvkm_perfsig *
38 nvkm_perfsig_find_(struct nvkm_perfdom *dom, const char *name, u32 size)
40 char path[64];
41 int i;
43 if (name[0] != '/') {
44 for (i = 0; i < dom->signal_nr; i++) {
45 if ( dom->signal[i].name &&
46 !strncmp(name, dom->signal[i].name, size))
47 return &dom->signal[i];
49 } else {
50 for (i = 0; i < dom->signal_nr; i++) {
51 snprintf(path, sizeof(path), "/%s/%02x", dom->name, i);
52 if (!strncmp(name, path, size))
53 return &dom->signal[i];
57 return NULL;
60 struct nvkm_perfsig *
61 nvkm_perfsig_find(struct nvkm_pm *ppm, const char *name, u32 size,
62 struct nvkm_perfdom **pdom)
64 struct nvkm_perfdom *dom = *pdom;
65 struct nvkm_perfsig *sig;
67 if (dom == NULL) {
68 list_for_each_entry(dom, &ppm->domains, head) {
69 sig = nvkm_perfsig_find_(dom, name, size);
70 if (sig) {
71 *pdom = dom;
72 return sig;
76 return NULL;
79 return nvkm_perfsig_find_(dom, name, size);
82 struct nvkm_perfctr *
83 nvkm_perfsig_wrap(struct nvkm_pm *ppm, const char *name,
84 struct nvkm_perfdom **pdom)
86 struct nvkm_perfsig *sig;
87 struct nvkm_perfctr *ctr;
89 sig = nvkm_perfsig_find(ppm, name, strlen(name), pdom);
90 if (!sig)
91 return NULL;
93 ctr = kzalloc(sizeof(*ctr), GFP_KERNEL);
94 if (ctr) {
95 ctr->signal[0] = sig;
96 ctr->logic_op = 0xaaaa;
99 return ctr;
102 /*******************************************************************************
103 * Perfmon object classes
104 ******************************************************************************/
105 static int
106 nvkm_perfctr_query(struct nvkm_object *object, void *data, u32 size)
108 union {
109 struct nvif_perfctr_query_v0 v0;
110 } *args = data;
111 struct nvkm_device *device = nv_device(object);
112 struct nvkm_pm *ppm = (void *)object->engine;
113 struct nvkm_perfdom *dom = NULL, *chk;
114 const bool all = nvkm_boolopt(device->cfgopt, "NvPmShowAll", false);
115 const bool raw = nvkm_boolopt(device->cfgopt, "NvPmUnnamed", all);
116 const char *name;
117 int tmp = 0, di, si;
118 int ret;
120 nv_ioctl(object, "perfctr query size %d\n", size);
121 if (nvif_unpack(args->v0, 0, 0, false)) {
122 nv_ioctl(object, "perfctr query vers %d iter %08x\n",
123 args->v0.version, args->v0.iter);
124 di = (args->v0.iter & 0xff000000) >> 24;
125 si = (args->v0.iter & 0x00ffffff) - 1;
126 } else
127 return ret;
129 list_for_each_entry(chk, &ppm->domains, head) {
130 if (tmp++ == di) {
131 dom = chk;
132 break;
136 if (dom == NULL || si >= (int)dom->signal_nr)
137 return -EINVAL;
139 if (si >= 0) {
140 if (raw || !(name = dom->signal[si].name)) {
141 snprintf(args->v0.name, sizeof(args->v0.name),
142 "/%s/%02x", dom->name, si);
143 } else {
144 strncpy(args->v0.name, name, sizeof(args->v0.name));
148 do {
149 while (++si < dom->signal_nr) {
150 if (all || dom->signal[si].name) {
151 args->v0.iter = (di << 24) | ++si;
152 return 0;
155 si = -1;
156 di = di + 1;
157 dom = list_entry(dom->head.next, typeof(*dom), head);
158 } while (&dom->head != &ppm->domains);
160 args->v0.iter = 0xffffffff;
161 return 0;
164 static int
165 nvkm_perfctr_sample(struct nvkm_object *object, void *data, u32 size)
167 union {
168 struct nvif_perfctr_sample none;
169 } *args = data;
170 struct nvkm_pm *ppm = (void *)object->engine;
171 struct nvkm_perfctr *ctr, *tmp;
172 struct nvkm_perfdom *dom;
173 int ret;
175 nv_ioctl(object, "perfctr sample size %d\n", size);
176 if (nvif_unvers(args->none)) {
177 nv_ioctl(object, "perfctr sample\n");
178 } else
179 return ret;
180 ppm->sequence++;
182 list_for_each_entry(dom, &ppm->domains, head) {
183 /* sample previous batch of counters */
184 if (dom->quad != QUAD_MASK) {
185 dom->func->next(ppm, dom);
186 tmp = NULL;
187 while (!list_empty(&dom->list)) {
188 ctr = list_first_entry(&dom->list,
189 typeof(*ctr), head);
190 if (ctr->slot < 0) break;
191 if ( tmp && tmp == ctr) break;
192 if (!tmp) tmp = ctr;
193 dom->func->read(ppm, dom, ctr);
194 ctr->slot = -1;
195 list_move_tail(&ctr->head, &dom->list);
199 dom->quad = QUAD_MASK;
201 /* setup next batch of counters for sampling */
202 list_for_each_entry(ctr, &dom->list, head) {
203 ctr->slot = ffs(dom->quad) - 1;
204 if (ctr->slot < 0)
205 break;
206 dom->quad &= ~(QUAD_FREE << ctr->slot);
207 dom->func->init(ppm, dom, ctr);
210 if (dom->quad != QUAD_MASK)
211 dom->func->next(ppm, dom);
214 return 0;
217 static int
218 nvkm_perfctr_read(struct nvkm_object *object, void *data, u32 size)
220 union {
221 struct nvif_perfctr_read_v0 v0;
222 } *args = data;
223 struct nvkm_perfctr *ctr = (void *)object;
224 int ret;
226 nv_ioctl(object, "perfctr read size %d\n", size);
227 if (nvif_unpack(args->v0, 0, 0, false)) {
228 nv_ioctl(object, "perfctr read vers %d\n", args->v0.version);
229 } else
230 return ret;
232 if (!ctr->clk)
233 return -EAGAIN;
235 args->v0.clk = ctr->clk;
236 args->v0.ctr = ctr->ctr;
237 return 0;
240 static int
241 nvkm_perfctr_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
243 switch (mthd) {
244 case NVIF_PERFCTR_V0_QUERY:
245 return nvkm_perfctr_query(object, data, size);
246 case NVIF_PERFCTR_V0_SAMPLE:
247 return nvkm_perfctr_sample(object, data, size);
248 case NVIF_PERFCTR_V0_READ:
249 return nvkm_perfctr_read(object, data, size);
250 default:
251 break;
253 return -EINVAL;
256 static void
257 nvkm_perfctr_dtor(struct nvkm_object *object)
259 struct nvkm_perfctr *ctr = (void *)object;
260 if (ctr->head.next)
261 list_del(&ctr->head);
262 nvkm_object_destroy(&ctr->base);
265 static int
266 nvkm_perfctr_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
267 struct nvkm_oclass *oclass, void *data, u32 size,
268 struct nvkm_object **pobject)
270 union {
271 struct nvif_perfctr_v0 v0;
272 } *args = data;
273 struct nvkm_pm *ppm = (void *)engine;
274 struct nvkm_perfdom *dom = NULL;
275 struct nvkm_perfsig *sig[4] = {};
276 struct nvkm_perfctr *ctr;
277 int ret, i;
279 nv_ioctl(parent, "create perfctr size %d\n", size);
280 if (nvif_unpack(args->v0, 0, 0, false)) {
281 nv_ioctl(parent, "create perfctr vers %d logic_op %04x\n",
282 args->v0.version, args->v0.logic_op);
283 } else
284 return ret;
286 for (i = 0; i < ARRAY_SIZE(args->v0.name) && args->v0.name[i][0]; i++) {
287 sig[i] = nvkm_perfsig_find(ppm, args->v0.name[i],
288 strnlen(args->v0.name[i],
289 sizeof(args->v0.name[i])),
290 &dom);
291 if (!sig[i])
292 return -EINVAL;
295 ret = nvkm_object_create(parent, engine, oclass, 0, &ctr);
296 *pobject = nv_object(ctr);
297 if (ret)
298 return ret;
300 ctr->slot = -1;
301 ctr->logic_op = args->v0.logic_op;
302 ctr->signal[0] = sig[0];
303 ctr->signal[1] = sig[1];
304 ctr->signal[2] = sig[2];
305 ctr->signal[3] = sig[3];
306 if (dom)
307 list_add_tail(&ctr->head, &dom->list);
308 return 0;
311 static struct nvkm_ofuncs
312 nvkm_perfctr_ofuncs = {
313 .ctor = nvkm_perfctr_ctor,
314 .dtor = nvkm_perfctr_dtor,
315 .init = nvkm_object_init,
316 .fini = nvkm_object_fini,
317 .mthd = nvkm_perfctr_mthd,
320 struct nvkm_oclass
321 nvkm_pm_sclass[] = {
322 { .handle = NVIF_IOCTL_NEW_V0_PERFCTR,
323 .ofuncs = &nvkm_perfctr_ofuncs,
328 /*******************************************************************************
329 * PPM context
330 ******************************************************************************/
331 static void
332 nvkm_perfctx_dtor(struct nvkm_object *object)
334 struct nvkm_pm *ppm = (void *)object->engine;
335 mutex_lock(&nv_subdev(ppm)->mutex);
336 nvkm_engctx_destroy(&ppm->context->base);
337 ppm->context = NULL;
338 mutex_unlock(&nv_subdev(ppm)->mutex);
341 static int
342 nvkm_perfctx_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
343 struct nvkm_oclass *oclass, void *data, u32 size,
344 struct nvkm_object **pobject)
346 struct nvkm_pm *ppm = (void *)engine;
347 struct nvkm_perfctx *ctx;
348 int ret;
350 ret = nvkm_engctx_create(parent, engine, oclass, NULL, 0, 0, 0, &ctx);
351 *pobject = nv_object(ctx);
352 if (ret)
353 return ret;
355 mutex_lock(&nv_subdev(ppm)->mutex);
356 if (ppm->context == NULL)
357 ppm->context = ctx;
358 mutex_unlock(&nv_subdev(ppm)->mutex);
360 if (ctx != ppm->context)
361 return -EBUSY;
363 return 0;
366 struct nvkm_oclass
367 nvkm_pm_cclass = {
368 .handle = NV_ENGCTX(PM, 0x00),
369 .ofuncs = &(struct nvkm_ofuncs) {
370 .ctor = nvkm_perfctx_ctor,
371 .dtor = nvkm_perfctx_dtor,
372 .init = _nvkm_engctx_init,
373 .fini = _nvkm_engctx_fini,
377 /*******************************************************************************
378 * PPM engine/subdev functions
379 ******************************************************************************/
381 nvkm_perfdom_new(struct nvkm_pm *ppm, const char *name, u32 mask,
382 u32 base, u32 size_unit, u32 size_domain,
383 const struct nvkm_specdom *spec)
385 const struct nvkm_specdom *sdom;
386 const struct nvkm_specsig *ssig;
387 struct nvkm_perfdom *dom;
388 int i;
390 for (i = 0; i == 0 || mask; i++) {
391 u32 addr = base + (i * size_unit);
392 if (i && !(mask & (1 << i)))
393 continue;
395 sdom = spec;
396 while (sdom->signal_nr) {
397 dom = kzalloc(sizeof(*dom) + sdom->signal_nr *
398 sizeof(*dom->signal), GFP_KERNEL);
399 if (!dom)
400 return -ENOMEM;
402 if (mask) {
403 snprintf(dom->name, sizeof(dom->name),
404 "%s/%02x/%02x", name, i,
405 (int)(sdom - spec));
406 } else {
407 snprintf(dom->name, sizeof(dom->name),
408 "%s/%02x", name, (int)(sdom - spec));
411 list_add_tail(&dom->head, &ppm->domains);
412 INIT_LIST_HEAD(&dom->list);
413 dom->func = sdom->func;
414 dom->addr = addr;
415 dom->quad = QUAD_MASK;
416 dom->signal_nr = sdom->signal_nr;
418 ssig = (sdom++)->signal;
419 while (ssig->name) {
420 dom->signal[ssig->signal].name = ssig->name;
421 ssig++;
424 addr += size_domain;
427 mask &= ~(1 << i);
430 return 0;
434 _nvkm_pm_fini(struct nvkm_object *object, bool suspend)
436 struct nvkm_pm *ppm = (void *)object;
437 return nvkm_engine_fini(&ppm->base, suspend);
441 _nvkm_pm_init(struct nvkm_object *object)
443 struct nvkm_pm *ppm = (void *)object;
444 return nvkm_engine_init(&ppm->base);
447 void
448 _nvkm_pm_dtor(struct nvkm_object *object)
450 struct nvkm_pm *ppm = (void *)object;
451 struct nvkm_perfdom *dom, *tmp;
453 list_for_each_entry_safe(dom, tmp, &ppm->domains, head) {
454 list_del(&dom->head);
455 kfree(dom);
458 nvkm_engine_destroy(&ppm->base);
462 nvkm_pm_create_(struct nvkm_object *parent, struct nvkm_object *engine,
463 struct nvkm_oclass *oclass, int length, void **pobject)
465 struct nvkm_pm *ppm;
466 int ret;
468 ret = nvkm_engine_create_(parent, engine, oclass, true, "PPM",
469 "pm", length, pobject);
470 ppm = *pobject;
471 if (ret)
472 return ret;
474 INIT_LIST_HEAD(&ppm->domains);
475 return 0;