--- /dev/null
+/*
+ * 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 <engine/fifo.h>
+
+#include <core/client.h>
+#include <core/engctx.h>
+#include <core/enum.h>
+#include <core/handle.h>
+#include <subdev/bar.h>
+#include <subdev/fb.h>
+#include <subdev/mmu.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+struct gf100_fifo_priv {
+ struct nvkm_fifo base;
+
+ struct work_struct fault;
+ u64 mask;
+
+ struct {
+ struct nvkm_gpuobj *mem[2];
+ int active;
+ wait_queue_head_t wait;
+ } runlist;
+
+ struct {
+ struct nvkm_gpuobj *mem;
+ struct nvkm_vma bar;
+ } user;
+ int spoon_nr;
+};
+
+struct gf100_fifo_base {
+ struct nvkm_fifo_base base;
+ struct nvkm_gpuobj *pgd;
+ struct nvkm_vm *vm;
+};
+
+struct gf100_fifo_chan {
+ struct nvkm_fifo_chan base;
+ enum {
+ STOPPED,
+ RUNNING,
+ KILLED
+ } state;
+};
+
+/*******************************************************************************
+ * FIFO channel objects
+ ******************************************************************************/
+
+static void
+gf100_fifo_runlist_update(struct gf100_fifo_priv *priv)
+{
+ struct nvkm_bar *bar = nvkm_bar(priv);
+ struct nvkm_gpuobj *cur;
+ int i, p;
+
+ mutex_lock(&nv_subdev(priv)->mutex);
+ cur = priv->runlist.mem[priv->runlist.active];
+ priv->runlist.active = !priv->runlist.active;
+
+ for (i = 0, p = 0; i < 128; i++) {
+ struct gf100_fifo_chan *chan = (void *)priv->base.channel[i];
+ if (chan && chan->state == RUNNING) {
+ nv_wo32(cur, p + 0, i);
+ nv_wo32(cur, p + 4, 0x00000004);
+ p += 8;
+ }
+ }
+ bar->flush(bar);
+
+ nv_wr32(priv, 0x002270, cur->addr >> 12);
+ nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
+
+ if (wait_event_timeout(priv->runlist.wait,
+ !(nv_rd32(priv, 0x00227c) & 0x00100000),
+ msecs_to_jiffies(2000)) == 0)
+ nv_error(priv, "runlist update timeout\n");
+ mutex_unlock(&nv_subdev(priv)->mutex);
+}
+
+static int
+gf100_fifo_context_attach(struct nvkm_object *parent,
+ struct nvkm_object *object)
+{
+ struct nvkm_bar *bar = nvkm_bar(parent);
+ struct gf100_fifo_base *base = (void *)parent->parent;
+ struct nvkm_engctx *ectx = (void *)object;
+ u32 addr;
+ int ret;
+
+ switch (nv_engidx(object->engine)) {
+ case NVDEV_ENGINE_SW : return 0;
+ case NVDEV_ENGINE_GR : addr = 0x0210; break;
+ case NVDEV_ENGINE_CE0 : addr = 0x0230; break;
+ case NVDEV_ENGINE_CE1 : addr = 0x0240; break;
+ case NVDEV_ENGINE_MSVLD : addr = 0x0270; break;
+ case NVDEV_ENGINE_MSPDEC: addr = 0x0250; break;
+ case NVDEV_ENGINE_MSPPP : addr = 0x0260; break;
+ default:
+ return -EINVAL;
+ }
+
+ if (!ectx->vma.node) {
+ ret = nvkm_gpuobj_map_vm(nv_gpuobj(ectx), base->vm,
+ NV_MEM_ACCESS_RW, &ectx->vma);
+ if (ret)
+ return ret;
+
+ nv_engctx(ectx)->addr = nv_gpuobj(base)->addr >> 12;
+ }
+
+ nv_wo32(base, addr + 0x00, lower_32_bits(ectx->vma.offset) | 4);
+ nv_wo32(base, addr + 0x04, upper_32_bits(ectx->vma.offset));
+ bar->flush(bar);
+ return 0;
+}
+
+static int
+gf100_fifo_context_detach(struct nvkm_object *parent, bool suspend,
+ struct nvkm_object *object)
+{
+ struct nvkm_bar *bar = nvkm_bar(parent);
+ struct gf100_fifo_priv *priv = (void *)parent->engine;
+ struct gf100_fifo_base *base = (void *)parent->parent;
+ struct gf100_fifo_chan *chan = (void *)parent;
+ u32 addr;
+
+ switch (nv_engidx(object->engine)) {
+ case NVDEV_ENGINE_SW : return 0;
+ case NVDEV_ENGINE_GR : addr = 0x0210; break;
+ case NVDEV_ENGINE_CE0 : addr = 0x0230; break;
+ case NVDEV_ENGINE_CE1 : addr = 0x0240; break;
+ case NVDEV_ENGINE_MSVLD : addr = 0x0270; break;
+ case NVDEV_ENGINE_MSPDEC: addr = 0x0250; break;
+ case NVDEV_ENGINE_MSPPP : addr = 0x0260; break;
+ default:
+ return -EINVAL;
+ }
+
+ nv_wr32(priv, 0x002634, chan->base.chid);
+ if (!nv_wait(priv, 0x002634, 0xffffffff, chan->base.chid)) {
+ nv_error(priv, "channel %d [%s] kick timeout\n",
+ chan->base.chid, nvkm_client_name(chan));
+ if (suspend)
+ return -EBUSY;
+ }
+
+ nv_wo32(base, addr + 0x00, 0x00000000);
+ nv_wo32(base, addr + 0x04, 0x00000000);
+ bar->flush(bar);
+ return 0;
+}
+
+static int
+gf100_fifo_chan_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+ struct nvkm_oclass *oclass, void *data, u32 size,
+ struct nvkm_object **pobject)
+{
+ union {
+ struct nv50_channel_gpfifo_v0 v0;
+ } *args = data;
+ struct nvkm_bar *bar = nvkm_bar(parent);
+ struct gf100_fifo_priv *priv = (void *)engine;
+ struct gf100_fifo_base *base = (void *)parent;
+ struct gf100_fifo_chan *chan;
+ u64 usermem, ioffset, ilength;
+ int ret, i;
+
+ nv_ioctl(parent, "create channel gpfifo size %d\n", size);
+ if (nvif_unpack(args->v0, 0, 0, false)) {
+ nv_ioctl(parent, "create channel gpfifo vers %d pushbuf %08x "
+ "ioffset %016llx ilength %08x\n",
+ args->v0.version, args->v0.pushbuf, args->v0.ioffset,
+ args->v0.ilength);
+ } else
+ return ret;
+
+ ret = nvkm_fifo_channel_create(parent, engine, oclass, 1,
+ priv->user.bar.offset, 0x1000,
+ args->v0.pushbuf,
+ (1ULL << NVDEV_ENGINE_SW) |
+ (1ULL << NVDEV_ENGINE_GR) |
+ (1ULL << NVDEV_ENGINE_CE0) |
+ (1ULL << NVDEV_ENGINE_CE1) |
+ (1ULL << NVDEV_ENGINE_MSVLD) |
+ (1ULL << NVDEV_ENGINE_MSPDEC) |
+ (1ULL << NVDEV_ENGINE_MSPPP), &chan);
+ *pobject = nv_object(chan);
+ if (ret)
+ return ret;
+
+ args->v0.chid = chan->base.chid;
+
+ nv_parent(chan)->context_attach = gf100_fifo_context_attach;
+ nv_parent(chan)->context_detach = gf100_fifo_context_detach;
+
+ usermem = chan->base.chid * 0x1000;
+ ioffset = args->v0.ioffset;
+ ilength = order_base_2(args->v0.ilength / 8);
+
+ for (i = 0; i < 0x1000; i += 4)
+ nv_wo32(priv->user.mem, usermem + i, 0x00000000);
+
+ nv_wo32(base, 0x08, lower_32_bits(priv->user.mem->addr + usermem));
+ nv_wo32(base, 0x0c, upper_32_bits(priv->user.mem->addr + usermem));
+ nv_wo32(base, 0x10, 0x0000face);
+ nv_wo32(base, 0x30, 0xfffff902);
+ nv_wo32(base, 0x48, lower_32_bits(ioffset));
+ nv_wo32(base, 0x4c, upper_32_bits(ioffset) | (ilength << 16));
+ nv_wo32(base, 0x54, 0x00000002);
+ nv_wo32(base, 0x84, 0x20400000);
+ nv_wo32(base, 0x94, 0x30000001);
+ nv_wo32(base, 0x9c, 0x00000100);
+ nv_wo32(base, 0xa4, 0x1f1f1f1f);
+ nv_wo32(base, 0xa8, 0x1f1f1f1f);
+ nv_wo32(base, 0xac, 0x0000001f);
+ nv_wo32(base, 0xb8, 0xf8000000);
+ nv_wo32(base, 0xf8, 0x10003080); /* 0x002310 */
+ nv_wo32(base, 0xfc, 0x10000010); /* 0x002350 */
+ bar->flush(bar);
+ return 0;
+}
+
+static int
+gf100_fifo_chan_init(struct nvkm_object *object)
+{
+ struct nvkm_gpuobj *base = nv_gpuobj(object->parent);
+ struct gf100_fifo_priv *priv = (void *)object->engine;
+ struct gf100_fifo_chan *chan = (void *)object;
+ u32 chid = chan->base.chid;
+ int ret;
+
+ ret = nvkm_fifo_channel_init(&chan->base);
+ if (ret)
+ return ret;
+
+ nv_wr32(priv, 0x003000 + (chid * 8), 0xc0000000 | base->addr >> 12);
+
+ if (chan->state == STOPPED && (chan->state = RUNNING) == RUNNING) {
+ nv_wr32(priv, 0x003004 + (chid * 8), 0x001f0001);
+ gf100_fifo_runlist_update(priv);
+ }
+
+ return 0;
+}
+
+static void gf100_fifo_intr_engine(struct gf100_fifo_priv *priv);
+
+static int
+gf100_fifo_chan_fini(struct nvkm_object *object, bool suspend)
+{
+ struct gf100_fifo_priv *priv = (void *)object->engine;
+ struct gf100_fifo_chan *chan = (void *)object;
+ u32 chid = chan->base.chid;
+
+ if (chan->state == RUNNING && (chan->state = STOPPED) == STOPPED) {
+ nv_mask(priv, 0x003004 + (chid * 8), 0x00000001, 0x00000000);
+ gf100_fifo_runlist_update(priv);
+ }
+
+ gf100_fifo_intr_engine(priv);
+
+ nv_wr32(priv, 0x003000 + (chid * 8), 0x00000000);
+ return nvkm_fifo_channel_fini(&chan->base, suspend);
+}
+
+static struct nvkm_ofuncs
+gf100_fifo_ofuncs = {
+ .ctor = gf100_fifo_chan_ctor,
+ .dtor = _nvkm_fifo_channel_dtor,
+ .init = gf100_fifo_chan_init,
+ .fini = gf100_fifo_chan_fini,
+ .map = _nvkm_fifo_channel_map,
+ .rd32 = _nvkm_fifo_channel_rd32,
+ .wr32 = _nvkm_fifo_channel_wr32,
+ .ntfy = _nvkm_fifo_channel_ntfy
+};
+
+static struct nvkm_oclass
+gf100_fifo_sclass[] = {
+ { FERMI_CHANNEL_GPFIFO, &gf100_fifo_ofuncs },
+ {}
+};
+
+/*******************************************************************************
+ * FIFO context - instmem heap and vm setup
+ ******************************************************************************/
+
+static int
+gf100_fifo_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+ struct nvkm_oclass *oclass, void *data, u32 size,
+ struct nvkm_object **pobject)
+{
+ struct gf100_fifo_base *base;
+ int ret;
+
+ ret = nvkm_fifo_context_create(parent, engine, oclass, NULL, 0x1000,
+ 0x1000, NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_HEAP, &base);
+ *pobject = nv_object(base);
+ if (ret)
+ return ret;
+
+ ret = nvkm_gpuobj_new(nv_object(base), NULL, 0x10000, 0x1000, 0,
+ &base->pgd);
+ if (ret)
+ return ret;
+
+ nv_wo32(base, 0x0200, lower_32_bits(base->pgd->addr));
+ nv_wo32(base, 0x0204, upper_32_bits(base->pgd->addr));
+ nv_wo32(base, 0x0208, 0xffffffff);
+ nv_wo32(base, 0x020c, 0x000000ff);
+
+ ret = nvkm_vm_ref(nvkm_client(parent)->vm, &base->vm, base->pgd);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void
+gf100_fifo_context_dtor(struct nvkm_object *object)
+{
+ struct gf100_fifo_base *base = (void *)object;
+ nvkm_vm_ref(NULL, &base->vm, base->pgd);
+ nvkm_gpuobj_ref(NULL, &base->pgd);
+ nvkm_fifo_context_destroy(&base->base);
+}
+
+static struct nvkm_oclass
+gf100_fifo_cclass = {
+ .handle = NV_ENGCTX(FIFO, 0xc0),
+ .ofuncs = &(struct nvkm_ofuncs) {
+ .ctor = gf100_fifo_context_ctor,
+ .dtor = gf100_fifo_context_dtor,
+ .init = _nvkm_fifo_context_init,
+ .fini = _nvkm_fifo_context_fini,
+ .rd32 = _nvkm_fifo_context_rd32,
+ .wr32 = _nvkm_fifo_context_wr32,
+ },
+};
+
+/*******************************************************************************
+ * PFIFO engine
+ ******************************************************************************/
+
+static inline int
+gf100_fifo_engidx(struct gf100_fifo_priv *priv, u32 engn)
+{
+ switch (engn) {
+ case NVDEV_ENGINE_GR : engn = 0; break;
+ case NVDEV_ENGINE_MSVLD : engn = 1; break;
+ case NVDEV_ENGINE_MSPPP : engn = 2; break;
+ case NVDEV_ENGINE_MSPDEC: engn = 3; break;
+ case NVDEV_ENGINE_CE0 : engn = 4; break;
+ case NVDEV_ENGINE_CE1 : engn = 5; break;
+ default:
+ return -1;
+ }
+
+ return engn;
+}
+
+static inline struct nvkm_engine *
+gf100_fifo_engine(struct gf100_fifo_priv *priv, u32 engn)
+{
+ switch (engn) {
+ case 0: engn = NVDEV_ENGINE_GR; break;
+ case 1: engn = NVDEV_ENGINE_MSVLD; break;
+ case 2: engn = NVDEV_ENGINE_MSPPP; break;
+ case 3: engn = NVDEV_ENGINE_MSPDEC; break;
+ case 4: engn = NVDEV_ENGINE_CE0; break;
+ case 5: engn = NVDEV_ENGINE_CE1; break;
+ default:
+ return NULL;
+ }
+
+ return nvkm_engine(priv, engn);
+}
+
+static void
+gf100_fifo_recover_work(struct work_struct *work)
+{
+ struct gf100_fifo_priv *priv = container_of(work, typeof(*priv), fault);
+ struct nvkm_object *engine;
+ unsigned long flags;
+ u32 engn, engm = 0;
+ u64 mask, todo;
+
+ spin_lock_irqsave(&priv->base.lock, flags);
+ mask = priv->mask;
+ priv->mask = 0ULL;
+ spin_unlock_irqrestore(&priv->base.lock, flags);
+
+ for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn))
+ engm |= 1 << gf100_fifo_engidx(priv, engn);
+ nv_mask(priv, 0x002630, engm, engm);
+
+ for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn)) {
+ if ((engine = (void *)nvkm_engine(priv, engn))) {
+ nv_ofuncs(engine)->fini(engine, false);
+ WARN_ON(nv_ofuncs(engine)->init(engine));
+ }
+ }
+
+ gf100_fifo_runlist_update(priv);
+ nv_wr32(priv, 0x00262c, engm);
+ nv_mask(priv, 0x002630, engm, 0x00000000);
+}
+
+static void
+gf100_fifo_recover(struct gf100_fifo_priv *priv, struct nvkm_engine *engine,
+ struct gf100_fifo_chan *chan)
+{
+ u32 chid = chan->base.chid;
+ unsigned long flags;
+
+ nv_error(priv, "%s engine fault on channel %d, recovering...\n",
+ nv_subdev(engine)->name, chid);
+
+ nv_mask(priv, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
+ chan->state = KILLED;
+
+ spin_lock_irqsave(&priv->base.lock, flags);
+ priv->mask |= 1ULL << nv_engidx(engine);
+ spin_unlock_irqrestore(&priv->base.lock, flags);
+ schedule_work(&priv->fault);
+}
+
+static int
+gf100_fifo_swmthd(struct gf100_fifo_priv *priv, u32 chid, u32 mthd, u32 data)
+{
+ struct gf100_fifo_chan *chan = NULL;
+ struct nvkm_handle *bind;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ spin_lock_irqsave(&priv->base.lock, flags);
+ if (likely(chid >= priv->base.min && chid <= priv->base.max))
+ chan = (void *)priv->base.channel[chid];
+ if (unlikely(!chan))
+ goto out;
+
+ bind = nvkm_namedb_get_class(nv_namedb(chan), 0x906e);
+ if (likely(bind)) {
+ if (!mthd || !nv_call(bind->object, mthd, data))
+ ret = 0;
+ nvkm_namedb_put(bind);
+ }
+
+out:
+ spin_unlock_irqrestore(&priv->base.lock, flags);
+ return ret;
+}
+
+static const struct nvkm_enum
+gf100_fifo_sched_reason[] = {
+ { 0x0a, "CTXSW_TIMEOUT" },
+ {}
+};
+
+static void
+gf100_fifo_intr_sched_ctxsw(struct gf100_fifo_priv *priv)
+{
+ struct nvkm_engine *engine;
+ struct gf100_fifo_chan *chan;
+ u32 engn;
+
+ for (engn = 0; engn < 6; engn++) {
+ u32 stat = nv_rd32(priv, 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) {
+ if (!(chan = (void *)priv->base.channel[chid]))
+ continue;
+ if (!(engine = gf100_fifo_engine(priv, engn)))
+ continue;
+ gf100_fifo_recover(priv, engine, chan);
+ }
+ }
+}
+
+static void
+gf100_fifo_intr_sched(struct gf100_fifo_priv *priv)
+{
+ u32 intr = nv_rd32(priv, 0x00254c);
+ u32 code = intr & 0x000000ff;
+ const struct nvkm_enum *en;
+ char enunk[6] = "";
+
+ en = nvkm_enum_find(gf100_fifo_sched_reason, code);
+ if (!en)
+ snprintf(enunk, sizeof(enunk), "UNK%02x", code);
+
+ nv_error(priv, "SCHED_ERROR [ %s ]\n", en ? en->name : enunk);
+
+ switch (code) {
+ case 0x0a:
+ gf100_fifo_intr_sched_ctxsw(priv);
+ break;
+ default:
+ break;
+ }
+}
+
+static const struct nvkm_enum
+gf100_fifo_fault_engine[] = {
+ { 0x00, "PGRAPH", NULL, NVDEV_ENGINE_GR },
+ { 0x03, "PEEPHOLE", NULL, NVDEV_ENGINE_IFB },
+ { 0x04, "BAR1", NULL, NVDEV_SUBDEV_BAR },
+ { 0x05, "BAR3", NULL, NVDEV_SUBDEV_INSTMEM },
+ { 0x07, "PFIFO", NULL, NVDEV_ENGINE_FIFO },
+ { 0x10, "PMSVLD", NULL, NVDEV_ENGINE_MSVLD },
+ { 0x11, "PMSPPP", NULL, NVDEV_ENGINE_MSPPP },
+ { 0x13, "PCOUNTER" },
+ { 0x14, "PMSPDEC", NULL, NVDEV_ENGINE_MSPDEC },
+ { 0x15, "PCE0", NULL, NVDEV_ENGINE_CE0 },
+ { 0x16, "PCE1", NULL, NVDEV_ENGINE_CE1 },
+ { 0x17, "PDAEMON" },
+ {}
+};
+
+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, "PDAEMON" },
+ { 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_intr_fault(struct gf100_fifo_priv *priv, int unit)
+{
+ u32 inst = nv_rd32(priv, 0x002800 + (unit * 0x10));
+ u32 valo = nv_rd32(priv, 0x002804 + (unit * 0x10));
+ u32 vahi = nv_rd32(priv, 0x002808 + (unit * 0x10));
+ u32 stat = nv_rd32(priv, 0x00280c + (unit * 0x10));
+ u32 gpc = (stat & 0x1f000000) >> 24;
+ u32 client = (stat & 0x00001f00) >> 8;
+ u32 write = (stat & 0x00000080);
+ u32 hub = (stat & 0x00000040);
+ u32 reason = (stat & 0x0000000f);
+ struct nvkm_object *engctx = NULL, *object;
+ struct nvkm_engine *engine = NULL;
+ const struct nvkm_enum *er, *eu, *ec;
+ char erunk[6] = "";
+ char euunk[6] = "";
+ char ecunk[6] = "";
+ char gpcid[3] = "";
+
+ er = nvkm_enum_find(gf100_fifo_fault_reason, reason);
+ if (!er)
+ snprintf(erunk, sizeof(erunk), "UNK%02X", reason);
+
+ eu = nvkm_enum_find(gf100_fifo_fault_engine, unit);
+ if (eu) {
+ switch (eu->data2) {
+ case NVDEV_SUBDEV_BAR:
+ nv_mask(priv, 0x001704, 0x00000000, 0x00000000);
+ break;
+ case NVDEV_SUBDEV_INSTMEM:
+ nv_mask(priv, 0x001714, 0x00000000, 0x00000000);
+ break;
+ case NVDEV_ENGINE_IFB:
+ nv_mask(priv, 0x001718, 0x00000000, 0x00000000);
+ break;
+ default:
+ engine = nvkm_engine(priv, eu->data2);
+ if (engine)
+ engctx = nvkm_engctx_get(engine, inst);
+ break;
+ }
+ } else {
+ snprintf(euunk, sizeof(euunk), "UNK%02x", unit);
+ }
+
+ if (hub) {
+ ec = nvkm_enum_find(gf100_fifo_fault_hubclient, client);
+ } else {
+ ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, client);
+ snprintf(gpcid, sizeof(gpcid), "%d", gpc);
+ }
+
+ if (!ec)
+ snprintf(ecunk, sizeof(ecunk), "UNK%02x", client);
+
+ nv_error(priv, "%s fault at 0x%010llx [%s] from %s/%s%s%s%s on "
+ "channel 0x%010llx [%s]\n", write ? "write" : "read",
+ (u64)vahi << 32 | valo, er ? er->name : erunk,
+ eu ? eu->name : euunk, hub ? "" : "GPC", gpcid, hub ? "" : "/",
+ ec ? ec->name : ecunk, (u64)inst << 12,
+ nvkm_client_name(engctx));
+
+ object = engctx;
+ while (object) {
+ switch (nv_mclass(object)) {
+ case FERMI_CHANNEL_GPFIFO:
+ gf100_fifo_recover(priv, engine, (void *)object);
+ break;
+ }
+ object = object->parent;
+ }
+
+ nvkm_engctx_put(engctx);
+}
+
+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_priv *priv, int unit)
+{
+ u32 stat = nv_rd32(priv, 0x040108 + (unit * 0x2000));
+ u32 addr = nv_rd32(priv, 0x0400c0 + (unit * 0x2000));
+ u32 data = nv_rd32(priv, 0x0400c4 + (unit * 0x2000));
+ u32 chid = nv_rd32(priv, 0x040120 + (unit * 0x2000)) & 0x7f;
+ u32 subc = (addr & 0x00070000) >> 16;
+ u32 mthd = (addr & 0x00003ffc);
+ u32 show = stat;
+
+ if (stat & 0x00800000) {
+ if (!gf100_fifo_swmthd(priv, chid, mthd, data))
+ show &= ~0x00800000;
+ }
+
+ if (show) {
+ nv_error(priv, "PBDMA%d:", unit);
+ nvkm_bitfield_print(gf100_fifo_pbdma_intr, show);
+ pr_cont("\n");
+ nv_error(priv,
+ "PBDMA%d: ch %d [%s] subc %d mthd 0x%04x data 0x%08x\n",
+ unit, chid,
+ nvkm_client_name_for_fifo_chid(&priv->base, chid),
+ subc, mthd, data);
+ }
+
+ nv_wr32(priv, 0x0400c0 + (unit * 0x2000), 0x80600008);
+ nv_wr32(priv, 0x040108 + (unit * 0x2000), stat);
+}
+
+static void
+gf100_fifo_intr_runlist(struct gf100_fifo_priv *priv)
+{
+ u32 intr = nv_rd32(priv, 0x002a00);
+
+ if (intr & 0x10000000) {
+ wake_up(&priv->runlist.wait);
+ nv_wr32(priv, 0x002a00, 0x10000000);
+ intr &= ~0x10000000;
+ }
+
+ if (intr) {
+ nv_error(priv, "RUNLIST 0x%08x\n", intr);
+ nv_wr32(priv, 0x002a00, intr);
+ }
+}
+
+static void
+gf100_fifo_intr_engine_unit(struct gf100_fifo_priv *priv, int engn)
+{
+ u32 intr = nv_rd32(priv, 0x0025a8 + (engn * 0x04));
+ u32 inte = nv_rd32(priv, 0x002628);
+ u32 unkn;
+
+ nv_wr32(priv, 0x0025a8 + (engn * 0x04), intr);
+
+ for (unkn = 0; unkn < 8; unkn++) {
+ u32 ints = (intr >> (unkn * 0x04)) & inte;
+ if (ints & 0x1) {
+ nvkm_fifo_uevent(&priv->base);
+ ints &= ~1;
+ }
+ if (ints) {
+ nv_error(priv, "ENGINE %d %d %01x", engn, unkn, ints);
+ nv_mask(priv, 0x002628, ints, 0);
+ }
+ }
+}
+
+static void
+gf100_fifo_intr_engine(struct gf100_fifo_priv *priv)
+{
+ u32 mask = nv_rd32(priv, 0x0025a4);
+ while (mask) {
+ u32 unit = __ffs(mask);
+ gf100_fifo_intr_engine_unit(priv, unit);
+ mask &= ~(1 << unit);
+ }
+}
+
+static void
+gf100_fifo_intr(struct nvkm_subdev *subdev)
+{
+ struct gf100_fifo_priv *priv = (void *)subdev;
+ u32 mask = nv_rd32(priv, 0x002140);
+ u32 stat = nv_rd32(priv, 0x002100) & mask;
+
+ if (stat & 0x00000001) {
+ u32 intr = nv_rd32(priv, 0x00252c);
+ nv_warn(priv, "INTR 0x00000001: 0x%08x\n", intr);
+ nv_wr32(priv, 0x002100, 0x00000001);
+ stat &= ~0x00000001;
+ }
+
+ if (stat & 0x00000100) {
+ gf100_fifo_intr_sched(priv);
+ nv_wr32(priv, 0x002100, 0x00000100);
+ stat &= ~0x00000100;
+ }
+
+ if (stat & 0x00010000) {
+ u32 intr = nv_rd32(priv, 0x00256c);
+ nv_warn(priv, "INTR 0x00010000: 0x%08x\n", intr);
+ nv_wr32(priv, 0x002100, 0x00010000);
+ stat &= ~0x00010000;
+ }
+
+ if (stat & 0x01000000) {
+ u32 intr = nv_rd32(priv, 0x00258c);
+ nv_warn(priv, "INTR 0x01000000: 0x%08x\n", intr);
+ nv_wr32(priv, 0x002100, 0x01000000);
+ stat &= ~0x01000000;
+ }
+
+ if (stat & 0x10000000) {
+ u32 mask = nv_rd32(priv, 0x00259c);
+ while (mask) {
+ u32 unit = __ffs(mask);
+ gf100_fifo_intr_fault(priv, unit);
+ nv_wr32(priv, 0x00259c, (1 << unit));
+ mask &= ~(1 << unit);
+ }
+ stat &= ~0x10000000;
+ }
+
+ if (stat & 0x20000000) {
+ u32 mask = nv_rd32(priv, 0x0025a0);
+ while (mask) {
+ u32 unit = __ffs(mask);
+ gf100_fifo_intr_pbdma(priv, unit);
+ nv_wr32(priv, 0x0025a0, (1 << unit));
+ mask &= ~(1 << unit);
+ }
+ stat &= ~0x20000000;
+ }
+
+ if (stat & 0x40000000) {
+ gf100_fifo_intr_runlist(priv);
+ stat &= ~0x40000000;
+ }
+
+ if (stat & 0x80000000) {
+ gf100_fifo_intr_engine(priv);
+ stat &= ~0x80000000;
+ }
+
+ if (stat) {
+ nv_error(priv, "INTR 0x%08x\n", stat);
+ nv_mask(priv, 0x002140, stat, 0x00000000);
+ nv_wr32(priv, 0x002100, stat);
+ }
+}
+
+static void
+gf100_fifo_uevent_init(struct nvkm_event *event, int type, int index)
+{
+ struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
+ nv_mask(fifo, 0x002140, 0x80000000, 0x80000000);
+}
+
+static void
+gf100_fifo_uevent_fini(struct nvkm_event *event, int type, int index)
+{
+ struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
+ nv_mask(fifo, 0x002140, 0x80000000, 0x00000000);
+}
+
+static const struct nvkm_event_func
+gf100_fifo_uevent_func = {
+ .ctor = nvkm_fifo_uevent_ctor,
+ .init = gf100_fifo_uevent_init,
+ .fini = gf100_fifo_uevent_fini,
+};
+
+static int
+gf100_fifo_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+ struct nvkm_oclass *oclass, void *data, u32 size,
+ struct nvkm_object **pobject)
+{
+ struct gf100_fifo_priv *priv;
+ int ret;
+
+ ret = nvkm_fifo_create(parent, engine, oclass, 0, 127, &priv);
+ *pobject = nv_object(priv);
+ if (ret)
+ return ret;
+
+ INIT_WORK(&priv->fault, gf100_fifo_recover_work);
+
+ ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x1000, 0x1000, 0,
+ &priv->runlist.mem[0]);
+ if (ret)
+ return ret;
+
+ ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x1000, 0x1000, 0,
+ &priv->runlist.mem[1]);
+ if (ret)
+ return ret;
+
+ init_waitqueue_head(&priv->runlist.wait);
+
+ ret = nvkm_gpuobj_new(nv_object(priv), NULL, 128 * 0x1000, 0x1000, 0,
+ &priv->user.mem);
+ if (ret)
+ return ret;
+
+ ret = nvkm_gpuobj_map(priv->user.mem, NV_MEM_ACCESS_RW,
+ &priv->user.bar);
+ if (ret)
+ return ret;
+
+ ret = nvkm_event_init(&gf100_fifo_uevent_func, 1, 1, &priv->base.uevent);
+ if (ret)
+ return ret;
+
+ nv_subdev(priv)->unit = 0x00000100;
+ nv_subdev(priv)->intr = gf100_fifo_intr;
+ nv_engine(priv)->cclass = &gf100_fifo_cclass;
+ nv_engine(priv)->sclass = gf100_fifo_sclass;
+ return 0;
+}
+
+static void
+gf100_fifo_dtor(struct nvkm_object *object)
+{
+ struct gf100_fifo_priv *priv = (void *)object;
+
+ nvkm_gpuobj_unmap(&priv->user.bar);
+ nvkm_gpuobj_ref(NULL, &priv->user.mem);
+ nvkm_gpuobj_ref(NULL, &priv->runlist.mem[0]);
+ nvkm_gpuobj_ref(NULL, &priv->runlist.mem[1]);
+
+ nvkm_fifo_destroy(&priv->base);
+}
+
+static int
+gf100_fifo_init(struct nvkm_object *object)
+{
+ struct gf100_fifo_priv *priv = (void *)object;
+ int ret, i;
+
+ ret = nvkm_fifo_init(&priv->base);
+ if (ret)
+ return ret;
+
+ nv_wr32(priv, 0x000204, 0xffffffff);
+ nv_wr32(priv, 0x002204, 0xffffffff);
+
+ priv->spoon_nr = hweight32(nv_rd32(priv, 0x002204));
+ nv_debug(priv, "%d PBDMA unit(s)\n", priv->spoon_nr);
+
+ /* assign engines to PBDMAs */
+ if (priv->spoon_nr >= 3) {
+ nv_wr32(priv, 0x002208, ~(1 << 0)); /* PGRAPH */
+ nv_wr32(priv, 0x00220c, ~(1 << 1)); /* PVP */
+ nv_wr32(priv, 0x002210, ~(1 << 1)); /* PMSPP */
+ nv_wr32(priv, 0x002214, ~(1 << 1)); /* PMSVLD */
+ nv_wr32(priv, 0x002218, ~(1 << 2)); /* PCE0 */
+ nv_wr32(priv, 0x00221c, ~(1 << 1)); /* PCE1 */
+ }
+
+ /* PBDMA[n] */
+ for (i = 0; i < priv->spoon_nr; i++) {
+ nv_mask(priv, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
+ nv_wr32(priv, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
+ nv_wr32(priv, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
+ }
+
+ nv_mask(priv, 0x002200, 0x00000001, 0x00000001);
+ nv_wr32(priv, 0x002254, 0x10000000 | priv->user.bar.offset >> 12);
+
+ nv_wr32(priv, 0x002100, 0xffffffff);
+ nv_wr32(priv, 0x002140, 0x7fffffff);
+ nv_wr32(priv, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
+ return 0;
+}
+
+struct nvkm_oclass *
+gf100_fifo_oclass = &(struct nvkm_oclass) {
+ .handle = NV_ENGINE(FIFO, 0xc0),
+ .ofuncs = &(struct nvkm_ofuncs) {
+ .ctor = gf100_fifo_ctor,
+ .dtor = gf100_fifo_dtor,
+ .init = gf100_fifo_init,
+ .fini = _nvkm_fifo_fini,
+ },
+};
Code Review / kvmfornfv.git / blobdiff