diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fault/tu102.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fault/tu102.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/tu102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/tu102.c new file mode 100644 index 0000000000..967efaddae --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/tu102.c @@ -0,0 +1,184 @@ +/* + * 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 <core/memory.h> +#include <subdev/mc.h> +#include <subdev/mmu.h> +#include <subdev/vfn.h> +#include <engine/fifo.h> + +#include <nvif/class.h> + +static irqreturn_t +tu102_fault_buffer_notify(struct nvkm_inth *inth) +{ + struct nvkm_fault_buffer *buffer = container_of(inth, typeof(*buffer), inth); + + nvkm_event_ntfy(&buffer->fault->event, buffer->id, NVKM_FAULT_BUFFER_EVENT_PENDING); + return IRQ_HANDLED; +} + +static void +tu102_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable) +{ + if (enable) + nvkm_inth_allow(&buffer->inth); + else + nvkm_inth_block(&buffer->inth); +} + +static void +tu102_fault_buffer_fini(struct nvkm_fault_buffer *buffer) +{ + struct nvkm_device *device = buffer->fault->subdev.device; + const u32 foff = buffer->id * 0x20; + + nvkm_mask(device, 0xb83010 + foff, 0x80000000, 0x00000000); +} + +static void +tu102_fault_buffer_init(struct nvkm_fault_buffer *buffer) +{ + struct nvkm_device *device = buffer->fault->subdev.device; + const u32 foff = buffer->id * 0x20; + + nvkm_mask(device, 0xb83010 + foff, 0xc0000000, 0x40000000); + nvkm_wr32(device, 0xb83004 + foff, upper_32_bits(buffer->addr)); + nvkm_wr32(device, 0xb83000 + foff, lower_32_bits(buffer->addr)); + nvkm_mask(device, 0xb83010 + foff, 0x80000000, 0x80000000); +} + +static void +tu102_fault_buffer_info(struct nvkm_fault_buffer *buffer) +{ + struct nvkm_device *device = buffer->fault->subdev.device; + const u32 foff = buffer->id * 0x20; + + nvkm_mask(device, 0xb83010 + foff, 0x40000000, 0x40000000); + + buffer->entries = nvkm_rd32(device, 0xb83010 + foff) & 0x000fffff; + buffer->get = 0xb83008 + foff; + buffer->put = 0xb8300c + foff; +} + +static irqreturn_t +tu102_fault_info_fault(struct nvkm_inth *inth) +{ + struct nvkm_fault *fault = container_of(inth, typeof(*fault), info_fault); + struct nvkm_subdev *subdev = &fault->subdev; + struct nvkm_device *device = subdev->device; + struct nvkm_fault_data info; + const u32 addrlo = nvkm_rd32(device, 0xb83080); + const u32 addrhi = nvkm_rd32(device, 0xb83084); + const u32 info0 = nvkm_rd32(device, 0xb83088); + const u32 insthi = nvkm_rd32(device, 0xb8308c); + const u32 info1 = nvkm_rd32(device, 0xb83090); + + info.addr = ((u64)addrhi << 32) | addrlo; + info.inst = ((u64)insthi << 32) | (info0 & 0xfffff000); + info.time = 0; + info.engine = (info0 & 0x000000ff); + info.valid = (info1 & 0x80000000) >> 31; + info.gpc = (info1 & 0x1f000000) >> 24; + info.hub = (info1 & 0x00100000) >> 20; + info.access = (info1 & 0x000f0000) >> 16; + info.client = (info1 & 0x00007f00) >> 8; + info.reason = (info1 & 0x0000001f); + + nvkm_fifo_fault(device->fifo, &info); + + nvkm_wr32(device, 0xb83094, 0x80000000); + return IRQ_HANDLED; +} + +static void +tu102_fault_fini(struct nvkm_fault *fault) +{ + nvkm_event_ntfy_block(&fault->nrpfb); + flush_work(&fault->nrpfb_work); + + if (fault->buffer[0]) + fault->func->buffer.fini(fault->buffer[0]); + + nvkm_inth_block(&fault->info_fault); +} + +static void +tu102_fault_init(struct nvkm_fault *fault) +{ + nvkm_inth_allow(&fault->info_fault); + + fault->func->buffer.init(fault->buffer[0]); + nvkm_event_ntfy_allow(&fault->nrpfb); +} + +static int +tu102_fault_oneinit(struct nvkm_fault *fault) +{ + struct nvkm_device *device = fault->subdev.device; + struct nvkm_intr *intr = &device->vfn->intr; + int ret, i; + + ret = nvkm_inth_add(intr, nvkm_rd32(device, 0x100ee0) & 0x0000ffff, + NVKM_INTR_PRIO_NORMAL, &fault->subdev, tu102_fault_info_fault, + &fault->info_fault); + if (ret) + return ret; + + for (i = 0; i < fault->buffer_nr; i++) { + ret = nvkm_inth_add(intr, nvkm_rd32(device, 0x100ee4 + (i * 4)) >> 16, + NVKM_INTR_PRIO_NORMAL, &fault->subdev, + tu102_fault_buffer_notify, &fault->buffer[i]->inth); + if (ret) + return ret; + } + + return gv100_fault_oneinit(fault); +} + +static const struct nvkm_fault_func +tu102_fault = { + .oneinit = tu102_fault_oneinit, + .init = tu102_fault_init, + .fini = tu102_fault_fini, + .buffer.nr = 2, + .buffer.entry_size = 32, + .buffer.info = tu102_fault_buffer_info, + .buffer.pin = gp100_fault_buffer_pin, + .buffer.init = tu102_fault_buffer_init, + .buffer.fini = tu102_fault_buffer_fini, + .buffer.intr = tu102_fault_buffer_intr, + .user = { { 0, 0, VOLTA_FAULT_BUFFER_A }, 1 }, +}; + +int +tu102_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_fault **pfault) +{ + int ret = nvkm_fault_new_(&tu102_fault, device, type, inst, pfault); + if (ret) + return ret; + + INIT_WORK(&(*pfault)->nrpfb_work, gv100_fault_buffer_process); + return 0; +} |