236 lines
7.1 KiB
C
236 lines
7.1 KiB
C
/*
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* Copyright 2018 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "priv.h"
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#include <core/memory.h>
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#include <subdev/mmu.h>
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#include <engine/fifo.h>
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#include <nvif/class.h>
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static void
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gv100_fault_buffer_process(struct nvkm_fault_buffer *buffer)
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{
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struct nvkm_device *device = buffer->fault->subdev.device;
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struct nvkm_memory *mem = buffer->mem;
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u32 get = nvkm_rd32(device, buffer->get);
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u32 put = nvkm_rd32(device, buffer->put);
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if (put == get)
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return;
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nvkm_kmap(mem);
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while (get != put) {
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const u32 base = get * buffer->fault->func->buffer.entry_size;
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const u32 instlo = nvkm_ro32(mem, base + 0x00);
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const u32 insthi = nvkm_ro32(mem, base + 0x04);
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const u32 addrlo = nvkm_ro32(mem, base + 0x08);
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const u32 addrhi = nvkm_ro32(mem, base + 0x0c);
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const u32 timelo = nvkm_ro32(mem, base + 0x10);
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const u32 timehi = nvkm_ro32(mem, base + 0x14);
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const u32 info0 = nvkm_ro32(mem, base + 0x18);
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const u32 info1 = nvkm_ro32(mem, base + 0x1c);
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struct nvkm_fault_data info;
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if (++get == buffer->entries)
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get = 0;
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nvkm_wr32(device, buffer->get, get);
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info.addr = ((u64)addrhi << 32) | addrlo;
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info.inst = ((u64)insthi << 32) | instlo;
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info.time = ((u64)timehi << 32) | timelo;
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info.engine = (info0 & 0x000000ff);
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info.valid = (info1 & 0x80000000) >> 31;
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info.gpc = (info1 & 0x1f000000) >> 24;
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info.hub = (info1 & 0x00100000) >> 20;
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info.access = (info1 & 0x000f0000) >> 16;
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info.client = (info1 & 0x00007f00) >> 8;
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info.reason = (info1 & 0x0000001f);
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nvkm_fifo_fault(device->fifo, &info);
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}
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nvkm_done(mem);
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}
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static void
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gv100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable)
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{
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struct nvkm_device *device = buffer->fault->subdev.device;
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const u32 intr = buffer->id ? 0x08000000 : 0x20000000;
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if (enable)
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nvkm_mask(device, 0x100a2c, intr, intr);
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else
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nvkm_mask(device, 0x100a34, intr, intr);
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}
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static void
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gv100_fault_buffer_fini(struct nvkm_fault_buffer *buffer)
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{
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struct nvkm_device *device = buffer->fault->subdev.device;
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const u32 foff = buffer->id * 0x14;
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nvkm_mask(device, 0x100e34 + foff, 0x80000000, 0x00000000);
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}
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static void
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gv100_fault_buffer_init(struct nvkm_fault_buffer *buffer)
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{
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struct nvkm_device *device = buffer->fault->subdev.device;
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const u32 foff = buffer->id * 0x14;
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nvkm_mask(device, 0x100e34 + foff, 0xc0000000, 0x40000000);
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nvkm_wr32(device, 0x100e28 + foff, upper_32_bits(buffer->addr));
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nvkm_wr32(device, 0x100e24 + foff, lower_32_bits(buffer->addr));
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nvkm_mask(device, 0x100e34 + foff, 0x80000000, 0x80000000);
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}
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static void
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gv100_fault_buffer_info(struct nvkm_fault_buffer *buffer)
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{
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struct nvkm_device *device = buffer->fault->subdev.device;
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const u32 foff = buffer->id * 0x14;
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nvkm_mask(device, 0x100e34 + foff, 0x40000000, 0x40000000);
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buffer->entries = nvkm_rd32(device, 0x100e34 + foff) & 0x000fffff;
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buffer->get = 0x100e2c + foff;
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buffer->put = 0x100e30 + foff;
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}
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static int
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gv100_fault_ntfy_nrpfb(struct nvkm_notify *notify)
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{
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struct nvkm_fault *fault = container_of(notify, typeof(*fault), nrpfb);
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gv100_fault_buffer_process(fault->buffer[0]);
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return NVKM_NOTIFY_KEEP;
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}
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static void
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gv100_fault_intr_fault(struct nvkm_fault *fault)
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{
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struct nvkm_subdev *subdev = &fault->subdev;
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struct nvkm_device *device = subdev->device;
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struct nvkm_fault_data info;
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const u32 addrlo = nvkm_rd32(device, 0x100e4c);
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const u32 addrhi = nvkm_rd32(device, 0x100e50);
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const u32 info0 = nvkm_rd32(device, 0x100e54);
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const u32 insthi = nvkm_rd32(device, 0x100e58);
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const u32 info1 = nvkm_rd32(device, 0x100e5c);
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info.addr = ((u64)addrhi << 32) | addrlo;
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info.inst = ((u64)insthi << 32) | (info0 & 0xfffff000);
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info.time = 0;
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info.engine = (info0 & 0x000000ff);
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info.valid = (info1 & 0x80000000) >> 31;
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info.gpc = (info1 & 0x1f000000) >> 24;
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info.hub = (info1 & 0x00100000) >> 20;
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info.access = (info1 & 0x000f0000) >> 16;
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info.client = (info1 & 0x00007f00) >> 8;
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info.reason = (info1 & 0x0000001f);
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nvkm_fifo_fault(device->fifo, &info);
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}
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static void
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gv100_fault_intr(struct nvkm_fault *fault)
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{
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struct nvkm_subdev *subdev = &fault->subdev;
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struct nvkm_device *device = subdev->device;
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u32 stat = nvkm_rd32(device, 0x100a20);
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if (stat & 0x80000000) {
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gv100_fault_intr_fault(fault);
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nvkm_wr32(device, 0x100e60, 0x80000000);
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stat &= ~0x80000000;
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}
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if (stat & 0x20000000) {
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if (fault->buffer[0]) {
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nvkm_event_send(&fault->event, 1, 0, NULL, 0);
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stat &= ~0x20000000;
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}
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}
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if (stat & 0x08000000) {
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if (fault->buffer[1]) {
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nvkm_event_send(&fault->event, 1, 1, NULL, 0);
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stat &= ~0x08000000;
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}
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}
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if (stat) {
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nvkm_debug(subdev, "intr %08x\n", stat);
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}
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}
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static void
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gv100_fault_fini(struct nvkm_fault *fault)
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{
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nvkm_notify_put(&fault->nrpfb);
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if (fault->buffer[0])
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fault->func->buffer.fini(fault->buffer[0]);
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nvkm_mask(fault->subdev.device, 0x100a34, 0x80000000, 0x80000000);
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}
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static void
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gv100_fault_init(struct nvkm_fault *fault)
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{
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nvkm_mask(fault->subdev.device, 0x100a2c, 0x80000000, 0x80000000);
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fault->func->buffer.init(fault->buffer[0]);
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nvkm_notify_get(&fault->nrpfb);
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}
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int
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gv100_fault_oneinit(struct nvkm_fault *fault)
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{
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return nvkm_notify_init(&fault->buffer[0]->object, &fault->event,
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gv100_fault_ntfy_nrpfb, true, NULL, 0, 0,
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&fault->nrpfb);
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}
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static const struct nvkm_fault_func
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gv100_fault = {
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.oneinit = gv100_fault_oneinit,
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.init = gv100_fault_init,
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.fini = gv100_fault_fini,
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.intr = gv100_fault_intr,
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.buffer.nr = 2,
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.buffer.entry_size = 32,
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.buffer.info = gv100_fault_buffer_info,
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.buffer.pin = gp100_fault_buffer_pin,
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.buffer.init = gv100_fault_buffer_init,
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.buffer.fini = gv100_fault_buffer_fini,
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.buffer.intr = gv100_fault_buffer_intr,
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/*TODO: Figure out how to expose non-replayable fault buffer, which,
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* for some reason, is where recoverable CE faults appear...
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*
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* It's a bit tricky, as both NVKM and SVM will need access to
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* the non-replayable fault buffer.
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*/
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.user = { { 0, 0, VOLTA_FAULT_BUFFER_A }, 1 },
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};
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int
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gv100_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_fault **pfault)
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{
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return nvkm_fault_new_(&gv100_fault, device, type, inst, pfault);
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}
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