From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- drivers/gpu/drm/nouveau/nvkm/core/engine.c | 154 +++++++++++++++++++++++------ 1 file changed, 122 insertions(+), 32 deletions(-) (limited to 'drivers/gpu/drm/nouveau/nvkm/core/engine.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/core/engine.c b/drivers/gpu/drm/nouveau/nvkm/core/engine.c index 60820173c..8a7bae7bd 100644 --- a/drivers/gpu/drm/nouveau/nvkm/core/engine.c +++ b/drivers/gpu/drm/nouveau/nvkm/core/engine.c @@ -25,51 +25,141 @@ #include #include +#include + +void +nvkm_engine_unref(struct nvkm_engine **pengine) +{ + struct nvkm_engine *engine = *pengine; + if (engine) { + mutex_lock(&engine->subdev.mutex); + if (--engine->usecount == 0) + nvkm_subdev_fini(&engine->subdev, false); + mutex_unlock(&engine->subdev.mutex); + *pengine = NULL; + } +} + struct nvkm_engine * -nvkm_engine(void *obj, int idx) +nvkm_engine_ref(struct nvkm_engine *engine) { - obj = nvkm_subdev(obj, idx); - if (obj && nv_iclass(obj, NV_ENGINE_CLASS)) - return nv_engine(obj); - return NULL; + if (engine) { + mutex_lock(&engine->subdev.mutex); + if (++engine->usecount == 1) { + int ret = nvkm_subdev_init(&engine->subdev); + if (ret) { + engine->usecount--; + mutex_unlock(&engine->subdev.mutex); + return ERR_PTR(ret); + } + } + mutex_unlock(&engine->subdev.mutex); + } + return engine; } -int -nvkm_engine_create_(struct nvkm_object *parent, struct nvkm_object *engobj, - struct nvkm_oclass *oclass, bool enable, - const char *iname, const char *fname, - int length, void **pobject) +void +nvkm_engine_tile(struct nvkm_engine *engine, int region) { - struct nvkm_engine *engine; - int ret; + struct nvkm_fb *fb = engine->subdev.device->fb; + if (engine->func->tile) + engine->func->tile(engine, region, &fb->tile.region[region]); +} - ret = nvkm_subdev_create_(parent, engobj, oclass, NV_ENGINE_CLASS, - iname, fname, length, pobject); - engine = *pobject; - if (ret) - return ret; +static void +nvkm_engine_intr(struct nvkm_subdev *subdev) +{ + struct nvkm_engine *engine = nvkm_engine(subdev); + if (engine->func->intr) + engine->func->intr(engine); +} - if (parent) { - struct nvkm_device *device = nv_device(parent); - int engidx = nv_engidx(engine); +static int +nvkm_engine_fini(struct nvkm_subdev *subdev, bool suspend) +{ + struct nvkm_engine *engine = nvkm_engine(subdev); + if (engine->func->fini) + return engine->func->fini(engine, suspend); + return 0; +} - if (device->disable_mask & (1ULL << engidx)) { - if (!nvkm_boolopt(device->cfgopt, iname, false)) { - nv_debug(engine, "engine disabled by hw/fw\n"); - return -ENODEV; - } +static int +nvkm_engine_init(struct nvkm_subdev *subdev) +{ + struct nvkm_engine *engine = nvkm_engine(subdev); + struct nvkm_fb *fb = subdev->device->fb; + int ret = 0, i; + s64 time; - nv_warn(engine, "ignoring hw/fw engine disable\n"); - } + if (!engine->usecount) { + nvkm_trace(subdev, "init skipped, engine has no users\n"); + return ret; + } - if (!nvkm_boolopt(device->cfgopt, iname, enable)) { - if (!enable) - nv_warn(engine, "disabled, %s=1 to enable\n", iname); - return -ENODEV; + if (engine->func->oneinit && !engine->subdev.oneinit) { + nvkm_trace(subdev, "one-time init running...\n"); + time = ktime_to_us(ktime_get()); + ret = engine->func->oneinit(engine); + if (ret) { + nvkm_trace(subdev, "one-time init failed, %d\n", ret); + return ret; } + + engine->subdev.oneinit = true; + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "one-time init completed in %lldus\n", time); + } + + if (engine->func->init) + ret = engine->func->init(engine); + + for (i = 0; fb && i < fb->tile.regions; i++) + nvkm_engine_tile(engine, i); + return ret; +} + +static void * +nvkm_engine_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_engine *engine = nvkm_engine(subdev); + if (engine->func->dtor) + return engine->func->dtor(engine); + return engine; +} + +static const struct nvkm_subdev_func +nvkm_engine_func = { + .dtor = nvkm_engine_dtor, + .init = nvkm_engine_init, + .fini = nvkm_engine_fini, + .intr = nvkm_engine_intr, +}; + +int +nvkm_engine_ctor(const struct nvkm_engine_func *func, + struct nvkm_device *device, int index, u32 pmc_enable, + bool enable, struct nvkm_engine *engine) +{ + nvkm_subdev_ctor(&nvkm_engine_func, device, index, + pmc_enable, &engine->subdev); + engine->func = func; + + if (!nvkm_boolopt(device->cfgopt, nvkm_subdev_name[index], enable)) { + nvkm_debug(&engine->subdev, "disabled\n"); + return -ENODEV; } - INIT_LIST_HEAD(&engine->contexts); spin_lock_init(&engine->lock); return 0; } + +int +nvkm_engine_new_(const struct nvkm_engine_func *func, + struct nvkm_device *device, int index, u32 pmc_enable, + bool enable, struct nvkm_engine **pengine) +{ + if (!(*pengine = kzalloc(sizeof(**pengine), GFP_KERNEL))) + return -ENOMEM; + return nvkm_engine_ctor(func, device, index, pmc_enable, + enable, *pengine); +} -- cgit v1.2.3-54-g00ecf