Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 699 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c
new file mode 100644
index 000000000..8b4f36b3e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c
@@ -0,0 +1,699 @@
+/*
+ * 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 "gf100.h"
+#include "changf100.h"
+
+#include <core/client.h>
+#include <core/enum.h>
+#include <core/gpuobj.h>
+#include <subdev/bar.h>
+#include <subdev/fault.h>
+#include <engine/sw.h>
+
+#include <nvif/class.h>
+
+static void
+gf100_fifo_uevent_init(struct nvkm_fifo *fifo)
+{
+	struct nvkm_device *device = fifo->engine.subdev.device;
+	nvkm_mask(device, 0x002140, 0x80000000, 0x80000000);
+}
+
+static void
+gf100_fifo_uevent_fini(struct nvkm_fifo *fifo)
+{
+	struct nvkm_device *device = fifo->engine.subdev.device;
+	nvkm_mask(device, 0x002140, 0x80000000, 0x00000000);
+}
+
+void
+gf100_fifo_runlist_commit(struct gf100_fifo *fifo)
+{
+	struct gf100_fifo_chan *chan;
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_memory *cur;
+	int nr = 0;
+	int target;
+
+	mutex_lock(&fifo->base.mutex);
+	cur = fifo->runlist.mem[fifo->runlist.active];
+	fifo->runlist.active = !fifo->runlist.active;
+
+	nvkm_kmap(cur);
+	list_for_each_entry(chan, &fifo->chan, head) {
+		nvkm_wo32(cur, (nr * 8) + 0, chan->base.chid);
+		nvkm_wo32(cur, (nr * 8) + 4, 0x00000004);
+		nr++;
+	}
+	nvkm_done(cur);
+
+	switch (nvkm_memory_target(cur)) {
+	case NVKM_MEM_TARGET_VRAM: target = 0; break;
+	case NVKM_MEM_TARGET_NCOH: target = 3; break;
+	default:
+		mutex_unlock(&fifo->base.mutex);
+		WARN_ON(1);
+		return;
+	}
+
+	nvkm_wr32(device, 0x002270, (nvkm_memory_addr(cur) >> 12) |
+				    (target << 28));
+	nvkm_wr32(device, 0x002274, 0x01f00000 | nr);
+
+	if (wait_event_timeout(fifo->runlist.wait,
+			       !(nvkm_rd32(device, 0x00227c) & 0x00100000),
+			       msecs_to_jiffies(2000)) == 0)
+		nvkm_error(subdev, "runlist update timeout\n");
+	mutex_unlock(&fifo->base.mutex);
+}
+
+void
+gf100_fifo_runlist_remove(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
+{
+	mutex_lock(&fifo->base.mutex);
+	list_del_init(&chan->head);
+	mutex_unlock(&fifo->base.mutex);
+}
+
+void
+gf100_fifo_runlist_insert(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
+{
+	mutex_lock(&fifo->base.mutex);
+	list_add_tail(&chan->head, &fifo->chan);
+	mutex_unlock(&fifo->base.mutex);
+}
+
+static struct nvkm_engine *
+gf100_fifo_id_engine(struct nvkm_fifo *fifo, int engi)
+{
+	enum nvkm_subdev_type type;
+	int inst;
+
+	switch (engi) {
+	case GF100_FIFO_ENGN_GR    : type = NVKM_ENGINE_GR    ; inst = 0; break;
+	case GF100_FIFO_ENGN_MSPDEC: type = NVKM_ENGINE_MSPDEC; inst = 0; break;
+	case GF100_FIFO_ENGN_MSPPP : type = NVKM_ENGINE_MSPPP ; inst = 0; break;
+	case GF100_FIFO_ENGN_MSVLD : type = NVKM_ENGINE_MSVLD ; inst = 0; break;
+	case GF100_FIFO_ENGN_CE0   : type = NVKM_ENGINE_CE    ; inst = 0; break;
+	case GF100_FIFO_ENGN_CE1   : type = NVKM_ENGINE_CE    ; inst = 1; break;
+	case GF100_FIFO_ENGN_SW    : type = NVKM_ENGINE_SW    ; inst = 0; break;
+	default:
+		WARN_ON(1);
+		return NULL;
+	}
+
+	return nvkm_device_engine(fifo->engine.subdev.device, type, inst);
+}
+
+static int
+gf100_fifo_engine_id(struct nvkm_fifo *base, struct nvkm_engine *engine)
+{
+	switch (engine->subdev.type) {
+	case NVKM_ENGINE_GR    : return GF100_FIFO_ENGN_GR;
+	case NVKM_ENGINE_MSPDEC: return GF100_FIFO_ENGN_MSPDEC;
+	case NVKM_ENGINE_MSPPP : return GF100_FIFO_ENGN_MSPPP;
+	case NVKM_ENGINE_MSVLD : return GF100_FIFO_ENGN_MSVLD;
+	case NVKM_ENGINE_CE    : return GF100_FIFO_ENGN_CE0 + engine->subdev.inst;
+	case NVKM_ENGINE_SW    : return GF100_FIFO_ENGN_SW;
+	default:
+		WARN_ON(1);
+		return -1;
+	}
+}
+
+static void
+gf100_fifo_recover_work(struct work_struct *w)
+{
+	struct gf100_fifo *fifo = container_of(w, typeof(*fifo), recover.work);
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	struct nvkm_engine *engine;
+	unsigned long flags;
+	u32 engm, engn, todo;
+
+	spin_lock_irqsave(&fifo->base.lock, flags);
+	engm = fifo->recover.mask;
+	fifo->recover.mask = 0ULL;
+	spin_unlock_irqrestore(&fifo->base.lock, flags);
+
+	nvkm_mask(device, 0x002630, engm, engm);
+
+	for (todo = engm; engn = __ffs(todo), todo; todo &= ~BIT_ULL(engn)) {
+		if ((engine = gf100_fifo_id_engine(&fifo->base, engn))) {
+			nvkm_subdev_fini(&engine->subdev, false);
+			WARN_ON(nvkm_subdev_init(&engine->subdev));
+		}
+	}
+
+	gf100_fifo_runlist_commit(fifo);
+	nvkm_wr32(device, 0x00262c, engm);
+	nvkm_mask(device, 0x002630, engm, 0x00000000);
+}
+
+static void
+gf100_fifo_recover(struct gf100_fifo *fifo, struct nvkm_engine *engine,
+		   struct gf100_fifo_chan *chan)
+{
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 chid = chan->base.chid;
+	int engi = gf100_fifo_engine_id(&fifo->base, engine);
+
+	nvkm_error(subdev, "%s engine fault on channel %d, recovering...\n",
+		   engine->subdev.name, chid);
+	assert_spin_locked(&fifo->base.lock);
+
+	nvkm_mask(device, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
+	list_del_init(&chan->head);
+	chan->killed = true;
+
+	if (engi >= 0 && engi != GF100_FIFO_ENGN_SW)
+		fifo->recover.mask |= BIT(engi);
+	schedule_work(&fifo->recover.work);
+	nvkm_fifo_kevent(&fifo->base, chid);
+}
+
+static const struct nvkm_enum
+gf100_fifo_fault_engine[] = {
+	{ 0x00, "PGRAPH", NULL, NVKM_ENGINE_GR },
+	{ 0x03, "PEEPHOLE", NULL, NVKM_ENGINE_IFB },
+	{ 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
+	{ 0x05, "BAR3", NULL, NVKM_SUBDEV_INSTMEM },
+	{ 0x07, "PFIFO", NULL, NVKM_ENGINE_FIFO },
+	{ 0x10, "PMSVLD", NULL, NVKM_ENGINE_MSVLD },
+	{ 0x11, "PMSPPP", NULL, NVKM_ENGINE_MSPPP },
+	{ 0x13, "PCOUNTER" },
+	{ 0x14, "PMSPDEC", NULL, NVKM_ENGINE_MSPDEC },
+	{ 0x15, "PCE0", NULL, NVKM_ENGINE_CE, 0 },
+	{ 0x16, "PCE1", NULL, NVKM_ENGINE_CE, 1 },
+	{ 0x17, "PMU" },
+	{}
+};
+
+static const struct nvkm_enum
+gf100_fifo_fault_reason[] = {
+	{ 0x00, "PT_NOT_PRESENT" },
+	{ 0x01, "PT_TOO_SHORT" },
+	{ 0x02, "PAGE_NOT_PRESENT" },
+	{ 0x03, "VM_LIMIT_EXCEEDED" },
+	{ 0x04, "NO_CHANNEL" },
+	{ 0x05, "PAGE_SYSTEM_ONLY" },
+	{ 0x06, "PAGE_READ_ONLY" },
+	{ 0x0a, "COMPRESSED_SYSRAM" },
+	{ 0x0c, "INVALID_STORAGE_TYPE" },
+	{}
+};
+
+static const struct nvkm_enum
+gf100_fifo_fault_hubclient[] = {
+	{ 0x01, "PCOPY0" },
+	{ 0x02, "PCOPY1" },
+	{ 0x04, "DISPATCH" },
+	{ 0x05, "CTXCTL" },
+	{ 0x06, "PFIFO" },
+	{ 0x07, "BAR_READ" },
+	{ 0x08, "BAR_WRITE" },
+	{ 0x0b, "PVP" },
+	{ 0x0c, "PMSPPP" },
+	{ 0x0d, "PMSVLD" },
+	{ 0x11, "PCOUNTER" },
+	{ 0x12, "PMU" },
+	{ 0x14, "CCACHE" },
+	{ 0x15, "CCACHE_POST" },
+	{}
+};
+
+static const struct nvkm_enum
+gf100_fifo_fault_gpcclient[] = {
+	{ 0x01, "TEX" },
+	{ 0x0c, "ESETUP" },
+	{ 0x0e, "CTXCTL" },
+	{ 0x0f, "PROP" },
+	{}
+};
+
+static void
+gf100_fifo_fault(struct nvkm_fifo *base, struct nvkm_fault_data *info)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	const struct nvkm_enum *er, *eu, *ec;
+	struct nvkm_engine *engine = NULL;
+	struct nvkm_fifo_chan *chan;
+	unsigned long flags;
+	char gpcid[8] = "";
+
+	er = nvkm_enum_find(gf100_fifo_fault_reason, info->reason);
+	eu = nvkm_enum_find(gf100_fifo_fault_engine, info->engine);
+	if (info->hub) {
+		ec = nvkm_enum_find(gf100_fifo_fault_hubclient, info->client);
+	} else {
+		ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, info->client);
+		snprintf(gpcid, sizeof(gpcid), "GPC%d/", info->gpc);
+	}
+
+	if (eu && eu->data2) {
+		switch (eu->data2) {
+		case NVKM_SUBDEV_BAR:
+			nvkm_bar_bar1_reset(device);
+			break;
+		case NVKM_SUBDEV_INSTMEM:
+			nvkm_bar_bar2_reset(device);
+			break;
+		case NVKM_ENGINE_IFB:
+			nvkm_mask(device, 0x001718, 0x00000000, 0x00000000);
+			break;
+		default:
+			engine = nvkm_device_engine(device, eu->data2, eu->inst);
+			break;
+		}
+	}
+
+	chan = nvkm_fifo_chan_inst(&fifo->base, info->inst, &flags);
+
+	nvkm_error(subdev,
+		   "%s fault at %010llx engine %02x [%s] client %02x [%s%s] "
+		   "reason %02x [%s] on channel %d [%010llx %s]\n",
+		   info->access ? "write" : "read", info->addr,
+		   info->engine, eu ? eu->name : "",
+		   info->client, gpcid, ec ? ec->name : "",
+		   info->reason, er ? er->name : "", chan ? chan->chid : -1,
+		   info->inst, chan ? chan->object.client->name : "unknown");
+
+	if (engine && chan)
+		gf100_fifo_recover(fifo, engine, (void *)chan);
+	nvkm_fifo_chan_put(&fifo->base, flags, &chan);
+}
+
+static const struct nvkm_enum
+gf100_fifo_sched_reason[] = {
+	{ 0x0a, "CTXSW_TIMEOUT" },
+	{}
+};
+
+static void
+gf100_fifo_intr_sched_ctxsw(struct gf100_fifo *fifo)
+{
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	struct nvkm_engine *engine;
+	struct gf100_fifo_chan *chan;
+	unsigned long flags;
+	u32 engn;
+
+	spin_lock_irqsave(&fifo->base.lock, flags);
+	for (engn = 0; engn < 6; engn++) {
+		u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x04));
+		u32 busy = (stat & 0x80000000);
+		u32 save = (stat & 0x00100000); /* maybe? */
+		u32 unk0 = (stat & 0x00040000);
+		u32 unk1 = (stat & 0x00001000);
+		u32 chid = (stat & 0x0000007f);
+		(void)save;
+
+		if (busy && unk0 && unk1) {
+			list_for_each_entry(chan, &fifo->chan, head) {
+				if (chan->base.chid == chid) {
+					engine = gf100_fifo_id_engine(&fifo->base, engn);
+					if (!engine)
+						break;
+					gf100_fifo_recover(fifo, engine, chan);
+					break;
+				}
+			}
+		}
+	}
+	spin_unlock_irqrestore(&fifo->base.lock, flags);
+}
+
+static void
+gf100_fifo_intr_sched(struct gf100_fifo *fifo)
+{
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 intr = nvkm_rd32(device, 0x00254c);
+	u32 code = intr & 0x000000ff;
+	const struct nvkm_enum *en;
+
+	en = nvkm_enum_find(gf100_fifo_sched_reason, code);
+
+	nvkm_error(subdev, "SCHED_ERROR %02x [%s]\n", code, en ? en->name : "");
+
+	switch (code) {
+	case 0x0a:
+		gf100_fifo_intr_sched_ctxsw(fifo);
+		break;
+	default:
+		break;
+	}
+}
+
+void
+gf100_fifo_intr_fault(struct nvkm_fifo *fifo, int unit)
+{
+	struct nvkm_device *device = fifo->engine.subdev.device;
+	u32 inst = nvkm_rd32(device, 0x002800 + (unit * 0x10));
+	u32 valo = nvkm_rd32(device, 0x002804 + (unit * 0x10));
+	u32 vahi = nvkm_rd32(device, 0x002808 + (unit * 0x10));
+	u32 type = nvkm_rd32(device, 0x00280c + (unit * 0x10));
+	struct nvkm_fault_data info;
+
+	info.inst   =  (u64)inst << 12;
+	info.addr   = ((u64)vahi << 32) | valo;
+	info.time   = 0;
+	info.engine = unit;
+	info.valid  = 1;
+	info.gpc    = (type & 0x1f000000) >> 24;
+	info.client = (type & 0x00001f00) >> 8;
+	info.access = (type & 0x00000080) >> 7;
+	info.hub    = (type & 0x00000040) >> 6;
+	info.reason = (type & 0x0000000f);
+
+	nvkm_fifo_fault(fifo, &info);
+}
+
+static const struct nvkm_bitfield
+gf100_fifo_pbdma_intr[] = {
+/*	{ 0x00008000, "" }	seen with null ib push */
+	{ 0x00200000, "ILLEGAL_MTHD" },
+	{ 0x00800000, "EMPTY_SUBC" },
+	{}
+};
+
+static void
+gf100_fifo_intr_pbdma(struct gf100_fifo *fifo, int unit)
+{
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 stat = nvkm_rd32(device, 0x040108 + (unit * 0x2000));
+	u32 addr = nvkm_rd32(device, 0x0400c0 + (unit * 0x2000));
+	u32 data = nvkm_rd32(device, 0x0400c4 + (unit * 0x2000));
+	u32 chid = nvkm_rd32(device, 0x040120 + (unit * 0x2000)) & 0x7f;
+	u32 subc = (addr & 0x00070000) >> 16;
+	u32 mthd = (addr & 0x00003ffc);
+	struct nvkm_fifo_chan *chan;
+	unsigned long flags;
+	u32 show= stat;
+	char msg[128];
+
+	if (stat & 0x00800000) {
+		if (device->sw) {
+			if (nvkm_sw_mthd(device->sw, chid, subc, mthd, data))
+				show &= ~0x00800000;
+		}
+	}
+
+	if (show) {
+		nvkm_snprintbf(msg, sizeof(msg), gf100_fifo_pbdma_intr, show);
+		chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags);
+		nvkm_error(subdev, "PBDMA%d: %08x [%s] ch %d [%010llx %s] "
+				   "subc %d mthd %04x data %08x\n",
+			   unit, show, msg, chid, chan ? chan->inst->addr : 0,
+			   chan ? chan->object.client->name : "unknown",
+			   subc, mthd, data);
+		nvkm_fifo_chan_put(&fifo->base, flags, &chan);
+	}
+
+	nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
+	nvkm_wr32(device, 0x040108 + (unit * 0x2000), stat);
+}
+
+static void
+gf100_fifo_intr_runlist(struct gf100_fifo *fifo)
+{
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 intr = nvkm_rd32(device, 0x002a00);
+
+	if (intr & 0x10000000) {
+		wake_up(&fifo->runlist.wait);
+		nvkm_wr32(device, 0x002a00, 0x10000000);
+		intr &= ~0x10000000;
+	}
+
+	if (intr) {
+		nvkm_error(subdev, "RUNLIST %08x\n", intr);
+		nvkm_wr32(device, 0x002a00, intr);
+	}
+}
+
+static void
+gf100_fifo_intr_engine_unit(struct gf100_fifo *fifo, int engn)
+{
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 intr = nvkm_rd32(device, 0x0025a8 + (engn * 0x04));
+	u32 inte = nvkm_rd32(device, 0x002628);
+	u32 unkn;
+
+	nvkm_wr32(device, 0x0025a8 + (engn * 0x04), intr);
+
+	for (unkn = 0; unkn < 8; unkn++) {
+		u32 ints = (intr >> (unkn * 0x04)) & inte;
+		if (ints & 0x1) {
+			nvkm_fifo_uevent(&fifo->base);
+			ints &= ~1;
+		}
+		if (ints) {
+			nvkm_error(subdev, "ENGINE %d %d %01x",
+				   engn, unkn, ints);
+			nvkm_mask(device, 0x002628, ints, 0);
+		}
+	}
+}
+
+void
+gf100_fifo_intr_engine(struct gf100_fifo *fifo)
+{
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	u32 mask = nvkm_rd32(device, 0x0025a4);
+	while (mask) {
+		u32 unit = __ffs(mask);
+		gf100_fifo_intr_engine_unit(fifo, unit);
+		mask &= ~(1 << unit);
+	}
+}
+
+static void
+gf100_fifo_intr(struct nvkm_fifo *base)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	u32 mask = nvkm_rd32(device, 0x002140);
+	u32 stat = nvkm_rd32(device, 0x002100) & mask;
+
+	if (stat & 0x00000001) {
+		u32 intr = nvkm_rd32(device, 0x00252c);
+		nvkm_warn(subdev, "INTR 00000001: %08x\n", intr);
+		nvkm_wr32(device, 0x002100, 0x00000001);
+		stat &= ~0x00000001;
+	}
+
+	if (stat & 0x00000100) {
+		gf100_fifo_intr_sched(fifo);
+		nvkm_wr32(device, 0x002100, 0x00000100);
+		stat &= ~0x00000100;
+	}
+
+	if (stat & 0x00010000) {
+		u32 intr = nvkm_rd32(device, 0x00256c);
+		nvkm_warn(subdev, "INTR 00010000: %08x\n", intr);
+		nvkm_wr32(device, 0x002100, 0x00010000);
+		stat &= ~0x00010000;
+	}
+
+	if (stat & 0x01000000) {
+		u32 intr = nvkm_rd32(device, 0x00258c);
+		nvkm_warn(subdev, "INTR 01000000: %08x\n", intr);
+		nvkm_wr32(device, 0x002100, 0x01000000);
+		stat &= ~0x01000000;
+	}
+
+	if (stat & 0x10000000) {
+		u32 mask = nvkm_rd32(device, 0x00259c);
+		while (mask) {
+			u32 unit = __ffs(mask);
+			gf100_fifo_intr_fault(&fifo->base, unit);
+			nvkm_wr32(device, 0x00259c, (1 << unit));
+			mask &= ~(1 << unit);
+		}
+		stat &= ~0x10000000;
+	}
+
+	if (stat & 0x20000000) {
+		u32 mask = nvkm_rd32(device, 0x0025a0);
+		while (mask) {
+			u32 unit = __ffs(mask);
+			gf100_fifo_intr_pbdma(fifo, unit);
+			nvkm_wr32(device, 0x0025a0, (1 << unit));
+			mask &= ~(1 << unit);
+		}
+		stat &= ~0x20000000;
+	}
+
+	if (stat & 0x40000000) {
+		gf100_fifo_intr_runlist(fifo);
+		stat &= ~0x40000000;
+	}
+
+	if (stat & 0x80000000) {
+		gf100_fifo_intr_engine(fifo);
+		stat &= ~0x80000000;
+	}
+
+	if (stat) {
+		nvkm_error(subdev, "INTR %08x\n", stat);
+		nvkm_mask(device, 0x002140, stat, 0x00000000);
+		nvkm_wr32(device, 0x002100, stat);
+	}
+}
+
+static int
+gf100_fifo_oneinit(struct nvkm_fifo *base)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
+	int ret;
+
+	/* Determine number of PBDMAs by checking valid enable bits. */
+	nvkm_wr32(device, 0x002204, 0xffffffff);
+	fifo->pbdma_nr = hweight32(nvkm_rd32(device, 0x002204));
+	nvkm_debug(subdev, "%d PBDMA(s)\n", fifo->pbdma_nr);
+
+
+	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
+			      false, &fifo->runlist.mem[0]);
+	if (ret)
+		return ret;
+
+	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
+			      false, &fifo->runlist.mem[1]);
+	if (ret)
+		return ret;
+
+	init_waitqueue_head(&fifo->runlist.wait);
+
+	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 0x1000,
+			      0x1000, false, &fifo->user.mem);
+	if (ret)
+		return ret;
+
+	ret = nvkm_vmm_get(bar, 12, nvkm_memory_size(fifo->user.mem),
+			   &fifo->user.bar);
+	if (ret)
+		return ret;
+
+	return nvkm_memory_map(fifo->user.mem, 0, bar, fifo->user.bar, NULL, 0);
+}
+
+static void
+gf100_fifo_fini(struct nvkm_fifo *base)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	flush_work(&fifo->recover.work);
+}
+
+static void
+gf100_fifo_init(struct nvkm_fifo *base)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	int i;
+
+	/* Enable PBDMAs. */
+	nvkm_wr32(device, 0x000204, (1 << fifo->pbdma_nr) - 1);
+	nvkm_wr32(device, 0x002204, (1 << fifo->pbdma_nr) - 1);
+
+	/* Assign engines to PBDMAs. */
+	if (fifo->pbdma_nr >= 3) {
+		nvkm_wr32(device, 0x002208, ~(1 << 0)); /* PGRAPH */
+		nvkm_wr32(device, 0x00220c, ~(1 << 1)); /* PVP */
+		nvkm_wr32(device, 0x002210, ~(1 << 1)); /* PMSPP */
+		nvkm_wr32(device, 0x002214, ~(1 << 1)); /* PMSVLD */
+		nvkm_wr32(device, 0x002218, ~(1 << 2)); /* PCE0 */
+		nvkm_wr32(device, 0x00221c, ~(1 << 1)); /* PCE1 */
+	}
+
+	/* PBDMA[n] */
+	for (i = 0; i < fifo->pbdma_nr; i++) {
+		nvkm_mask(device, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
+		nvkm_wr32(device, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
+		nvkm_wr32(device, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
+	}
+
+	nvkm_mask(device, 0x002200, 0x00000001, 0x00000001);
+	nvkm_wr32(device, 0x002254, 0x10000000 | fifo->user.bar->addr >> 12);
+
+	nvkm_wr32(device, 0x002100, 0xffffffff);
+	nvkm_wr32(device, 0x002140, 0x7fffffff);
+	nvkm_wr32(device, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
+}
+
+static void *
+gf100_fifo_dtor(struct nvkm_fifo *base)
+{
+	struct gf100_fifo *fifo = gf100_fifo(base);
+	struct nvkm_device *device = fifo->base.engine.subdev.device;
+	nvkm_vmm_put(nvkm_bar_bar1_vmm(device), &fifo->user.bar);
+	nvkm_memory_unref(&fifo->user.mem);
+	nvkm_memory_unref(&fifo->runlist.mem[0]);
+	nvkm_memory_unref(&fifo->runlist.mem[1]);
+	return fifo;
+}
+
+static const struct nvkm_fifo_func
+gf100_fifo = {
+	.dtor = gf100_fifo_dtor,
+	.oneinit = gf100_fifo_oneinit,
+	.init = gf100_fifo_init,
+	.fini = gf100_fifo_fini,
+	.intr = gf100_fifo_intr,
+	.fault = gf100_fifo_fault,
+	.engine_id = gf100_fifo_engine_id,
+	.id_engine = gf100_fifo_id_engine,
+	.uevent_init = gf100_fifo_uevent_init,
+	.uevent_fini = gf100_fifo_uevent_fini,
+	.chan = {
+		&gf100_fifo_gpfifo_oclass,
+		NULL
+	},
+};
+
+int
+gf100_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	       struct nvkm_fifo **pfifo)
+{
+	struct gf100_fifo *fifo;
+
+	if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
+		return -ENOMEM;
+	INIT_LIST_HEAD(&fifo->chan);
+	INIT_WORK(&fifo->recover.work, gf100_fifo_recover_work);
+	*pfifo = &fifo->base;
+
+	return nvkm_fifo_ctor(&gf100_fifo, device, type, inst, 128, &fifo->base);
+}