diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/subdev.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/subdev.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/subdev.c b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c new file mode 100644 index 000000000..a74b7acb6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c @@ -0,0 +1,194 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include <core/subdev.h> +#include <core/device.h> +#include <core/option.h> +#include <subdev/mc.h> + +const char * +nvkm_subdev_type[NVKM_SUBDEV_NR] = { +#define NVKM_LAYOUT_ONCE(type,data,ptr,...) [type] = #ptr, +#define NVKM_LAYOUT_INST(A...) NVKM_LAYOUT_ONCE(A) +#include <core/layout.h> +#undef NVKM_LAYOUT_ONCE +#undef NVKM_LAYOUT_INST +}; + +void +nvkm_subdev_intr(struct nvkm_subdev *subdev) +{ + if (subdev->func->intr) + subdev->func->intr(subdev); +} + +int +nvkm_subdev_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data) +{ + if (subdev->func->info) + return subdev->func->info(subdev, mthd, data); + return -ENOSYS; +} + +int +nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend) +{ + struct nvkm_device *device = subdev->device; + const char *action = suspend ? "suspend" : "fini"; + s64 time; + + nvkm_trace(subdev, "%s running...\n", action); + time = ktime_to_us(ktime_get()); + + if (subdev->func->fini) { + int ret = subdev->func->fini(subdev, suspend); + if (ret) { + nvkm_error(subdev, "%s failed, %d\n", action, ret); + if (suspend) + return ret; + } + } + + nvkm_mc_reset(device, subdev->type, subdev->inst); + + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "%s completed in %lldus\n", action, time); + return 0; +} + +int +nvkm_subdev_preinit(struct nvkm_subdev *subdev) +{ + s64 time; + + nvkm_trace(subdev, "preinit running...\n"); + time = ktime_to_us(ktime_get()); + + if (subdev->func->preinit) { + int ret = subdev->func->preinit(subdev); + if (ret) { + nvkm_error(subdev, "preinit failed, %d\n", ret); + return ret; + } + } + + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "preinit completed in %lldus\n", time); + return 0; +} + +int +nvkm_subdev_init(struct nvkm_subdev *subdev) +{ + s64 time; + int ret; + + nvkm_trace(subdev, "init running...\n"); + time = ktime_to_us(ktime_get()); + + if (subdev->func->oneinit && !subdev->oneinit) { + s64 time; + nvkm_trace(subdev, "one-time init running...\n"); + time = ktime_to_us(ktime_get()); + ret = subdev->func->oneinit(subdev); + if (ret) { + nvkm_error(subdev, "one-time init failed, %d\n", ret); + return ret; + } + + subdev->oneinit = true; + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "one-time init completed in %lldus\n", time); + } + + if (subdev->func->init) { + ret = subdev->func->init(subdev); + if (ret) { + nvkm_error(subdev, "init failed, %d\n", ret); + return ret; + } + } + + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "init completed in %lldus\n", time); + return 0; +} + +void +nvkm_subdev_del(struct nvkm_subdev **psubdev) +{ + struct nvkm_subdev *subdev = *psubdev; + s64 time; + + if (subdev && !WARN_ON(!subdev->func)) { + nvkm_trace(subdev, "destroy running...\n"); + time = ktime_to_us(ktime_get()); + list_del(&subdev->head); + if (subdev->func->dtor) + *psubdev = subdev->func->dtor(subdev); + time = ktime_to_us(ktime_get()) - time; + nvkm_trace(subdev, "destroy completed in %lldus\n", time); + kfree(*psubdev); + *psubdev = NULL; + } +} + +void +nvkm_subdev_disable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst) +{ + struct nvkm_subdev *subdev; + list_for_each_entry(subdev, &device->subdev, head) { + if (subdev->type == type && subdev->inst == inst) { + *subdev->pself = NULL; + nvkm_subdev_del(&subdev); + break; + } + } +} + +void +nvkm_subdev_ctor(const struct nvkm_subdev_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_subdev *subdev) +{ + subdev->func = func; + subdev->device = device; + subdev->type = type; + subdev->inst = inst < 0 ? 0 : inst; + + if (inst >= 0) + snprintf(subdev->name, sizeof(subdev->name), "%s%d", nvkm_subdev_type[type], inst); + else + strscpy(subdev->name, nvkm_subdev_type[type], sizeof(subdev->name)); + subdev->debug = nvkm_dbgopt(device->dbgopt, subdev->name); + list_add_tail(&subdev->head, &device->subdev); +} + +int +nvkm_subdev_new_(const struct nvkm_subdev_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_subdev **psubdev) +{ + if (!(*psubdev = kzalloc(sizeof(**psubdev), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(func, device, type, inst, *psubdev); + return 0; +} |