--- /dev/null
+/*
+ * 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/mmu.h>
+#include <engine/fifo.h>
+
+#include <nvif/class.h>
+
+static void
+tu104_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable)
+{
+ /*XXX: Earlier versions of RM touched the old regs on Turing,
+ * which don't appear to actually work anymore, but newer
+ * versions of RM don't appear to touch anything at all..
+ */
+}
+
+static void
+tu104_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
+tu104_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
+tu104_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 void
+tu104_fault_intr_fault(struct nvkm_fault *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);
+}
+
+static void
+tu104_fault_intr(struct nvkm_fault *fault)
+{
+ struct nvkm_subdev *subdev = &fault->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 stat = nvkm_rd32(device, 0xb83094);
+
+ if (stat & 0x80000000) {
+ tu104_fault_intr_fault(fault);
+ nvkm_wr32(device, 0xb83094, 0x80000000);
+ stat &= ~0x80000000;
+ }
+
+ if (stat & 0x00000200) {
+ if (fault->buffer[0]) {
+ nvkm_event_send(&fault->event, 1, 0, NULL, 0);
+ stat &= ~0x00000200;
+ }
+ }
+
+ /*XXX: guess, can't confirm until we get fw... */
+ if (stat & 0x00000100) {
+ if (fault->buffer[1]) {
+ nvkm_event_send(&fault->event, 1, 1, NULL, 0);
+ stat &= ~0x00000100;
+ }
+ }
+
+ if (stat) {
+ nvkm_debug(subdev, "intr %08x\n", stat);
+ }
+}
+
+static void
+tu104_fault_fini(struct nvkm_fault *fault)
+{
+ nvkm_notify_put(&fault->nrpfb);
+ if (fault->buffer[0])
+ fault->func->buffer.fini(fault->buffer[0]);
+ /*XXX: disable priv faults */
+}
+
+static void
+tu104_fault_init(struct nvkm_fault *fault)
+{
+ /*XXX: enable priv faults */
+ fault->func->buffer.init(fault->buffer[0]);
+ nvkm_notify_get(&fault->nrpfb);
+}
+
+static const struct nvkm_fault_func
+tu104_fault = {
+ .oneinit = gv100_fault_oneinit,
+ .init = tu104_fault_init,
+ .fini = tu104_fault_fini,
+ .intr = tu104_fault_intr,
+ .buffer.nr = 2,
+ .buffer.entry_size = 32,
+ .buffer.info = tu104_fault_buffer_info,
+ .buffer.init = tu104_fault_buffer_init,
+ .buffer.fini = tu104_fault_buffer_fini,
+ .buffer.intr = tu104_fault_buffer_intr,
+};
+
+int
+tu104_fault_new(struct nvkm_device *device, int index,
+ struct nvkm_fault **pfault)
+{
+ return nvkm_fault_new_(&tu104_fault, device, index, pfault);
+}
projects / openwrt / staging / blogic.git / commitdiff