From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c | 183 +++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c new file mode 100644 index 000000000..fd54fa504 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c @@ -0,0 +1,183 @@ +/* + * Copyright 2018 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. + */ +#include "priv.h" + +#include +#include + +static void +nvkm_fault_ntfy_fini(struct nvkm_event *event, int type, int index) +{ + struct nvkm_fault *fault = container_of(event, typeof(*fault), event); + fault->func->buffer.intr(fault->buffer[index], false); +} + +static void +nvkm_fault_ntfy_init(struct nvkm_event *event, int type, int index) +{ + struct nvkm_fault *fault = container_of(event, typeof(*fault), event); + fault->func->buffer.intr(fault->buffer[index], true); +} + +static int +nvkm_fault_ntfy_ctor(struct nvkm_object *object, void *argv, u32 argc, + struct nvkm_notify *notify) +{ + struct nvkm_fault_buffer *buffer = nvkm_fault_buffer(object); + if (argc == 0) { + notify->size = 0; + notify->types = 1; + notify->index = buffer->id; + return 0; + } + return -ENOSYS; +} + +static const struct nvkm_event_func +nvkm_fault_ntfy = { + .ctor = nvkm_fault_ntfy_ctor, + .init = nvkm_fault_ntfy_init, + .fini = nvkm_fault_ntfy_fini, +}; + +static void +nvkm_fault_intr(struct nvkm_subdev *subdev) +{ + struct nvkm_fault *fault = nvkm_fault(subdev); + return fault->func->intr(fault); +} + +static int +nvkm_fault_fini(struct nvkm_subdev *subdev, bool suspend) +{ + struct nvkm_fault *fault = nvkm_fault(subdev); + if (fault->func->fini) + fault->func->fini(fault); + return 0; +} + +static int +nvkm_fault_init(struct nvkm_subdev *subdev) +{ + struct nvkm_fault *fault = nvkm_fault(subdev); + if (fault->func->init) + fault->func->init(fault); + return 0; +} + +static int +nvkm_fault_oneinit_buffer(struct nvkm_fault *fault, int id) +{ + struct nvkm_subdev *subdev = &fault->subdev; + struct nvkm_device *device = subdev->device; + struct nvkm_fault_buffer *buffer; + int ret; + + if (!(buffer = kzalloc(sizeof(*buffer), GFP_KERNEL))) + return -ENOMEM; + buffer->fault = fault; + buffer->id = id; + fault->func->buffer.info(buffer); + fault->buffer[id] = buffer; + + nvkm_debug(subdev, "buffer %d: %d entries\n", id, buffer->entries); + + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, buffer->entries * + fault->func->buffer.entry_size, 0x1000, true, + &buffer->mem); + if (ret) + return ret; + + /* Pin fault buffer in BAR2. */ + buffer->addr = fault->func->buffer.pin(buffer); + if (buffer->addr == ~0ULL) + return -EFAULT; + + return 0; +} + +static int +nvkm_fault_oneinit(struct nvkm_subdev *subdev) +{ + struct nvkm_fault *fault = nvkm_fault(subdev); + int ret, i; + + for (i = 0; i < ARRAY_SIZE(fault->buffer); i++) { + if (i < fault->func->buffer.nr) { + ret = nvkm_fault_oneinit_buffer(fault, i); + if (ret) + return ret; + fault->buffer_nr = i + 1; + } + } + + ret = nvkm_event_init(&nvkm_fault_ntfy, 1, fault->buffer_nr, + &fault->event); + if (ret) + return ret; + + if (fault->func->oneinit) + ret = fault->func->oneinit(fault); + return ret; +} + +static void * +nvkm_fault_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_fault *fault = nvkm_fault(subdev); + int i; + + nvkm_notify_fini(&fault->nrpfb); + nvkm_event_fini(&fault->event); + + for (i = 0; i < fault->buffer_nr; i++) { + if (fault->buffer[i]) { + nvkm_memory_unref(&fault->buffer[i]->mem); + kfree(fault->buffer[i]); + } + } + + return fault; +} + +static const struct nvkm_subdev_func +nvkm_fault = { + .dtor = nvkm_fault_dtor, + .oneinit = nvkm_fault_oneinit, + .init = nvkm_fault_init, + .fini = nvkm_fault_fini, + .intr = nvkm_fault_intr, +}; + +int +nvkm_fault_new_(const struct nvkm_fault_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_fault **pfault) +{ + struct nvkm_fault *fault; + if (!(fault = *pfault = kzalloc(sizeof(*fault), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(&nvkm_fault, device, type, inst, &fault->subdev); + fault->func = func; + fault->user.ctor = nvkm_ufault_new; + fault->user.base = func->user.base; + return 0; +} -- cgit v1.2.3