From: Ben Skeggs Date: Tue, 8 May 2018 10:39:46 +0000 (+1000) Subject: drm/nouveau/fifo/gk104-: allow fault recovery code to be called by other subdevs X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ddc669e25645b32158cc2b6da26faf5dac92fffc;p=openwrt%2Fstaging%2Fblogic.git drm/nouveau/fifo/gk104-: allow fault recovery code to be called by other subdevs This will be required to support Volta. Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h index c17b3a9bf8fb..0d96edee1e6a 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h @@ -4,6 +4,7 @@ #include #include #include +struct nvkm_fault_data; #define NVKM_FIFO_CHID_NR 4096 @@ -45,6 +46,7 @@ struct nvkm_fifo { struct nvkm_event kevent; /* channel killed */ }; +void nvkm_fifo_fault(struct nvkm_fifo *, struct nvkm_fault_data *); void nvkm_fifo_pause(struct nvkm_fifo *, unsigned long *); void nvkm_fifo_start(struct nvkm_fifo *, unsigned long *); diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h index 8ca66e572779..8e9bc30fe65d 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h @@ -12,5 +12,18 @@ struct nvkm_fault { struct nvkm_event event; }; +struct nvkm_fault_data { + u64 addr; + u64 inst; + u64 time; + u8 engine; + u8 valid; + u8 gpc; + u8 hub; + u8 access; + u8 client; + u8 reason; +}; + int gp100_fault_new(struct nvkm_device *, int, struct nvkm_fault **); #endif diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c index 49b37a8a94b7..ed56087b4abe 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/base.c @@ -56,6 +56,12 @@ nvkm_fifo_start(struct nvkm_fifo *fifo, unsigned long *flags) return fifo->func->start(fifo, flags); } +void +nvkm_fifo_fault(struct nvkm_fifo *fifo, struct nvkm_fault_data *info) +{ + return fifo->func->fault(fifo, info); +} + void nvkm_fifo_chan_put(struct nvkm_fifo *fifo, unsigned long flags, struct nvkm_fifo_chan **pchan) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c index 84bd703dd897..b5706b15a64d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -347,6 +348,90 @@ gk104_fifo_recover_engn(struct gk104_fifo *fifo, int engn) schedule_work(&fifo->recover.work); } +static void +gk104_fifo_fault(struct nvkm_fifo *base, struct nvkm_fault_data *info) +{ + struct gk104_fifo *fifo = gk104_fifo(base); + struct nvkm_subdev *subdev = &fifo->base.engine.subdev; + struct nvkm_device *device = subdev->device; + const struct nvkm_enum *er, *ee, *ec, *ea; + struct nvkm_engine *engine = NULL; + struct nvkm_fifo_chan *chan; + unsigned long flags; + char ct[8] = "HUB/", en[16] = ""; + int engn; + + er = nvkm_enum_find(fifo->func->fault.reason, info->reason); + ee = nvkm_enum_find(fifo->func->fault.engine, info->engine); + if (info->hub) { + ec = nvkm_enum_find(fifo->func->fault.hubclient, info->client); + } else { + ec = nvkm_enum_find(fifo->func->fault.gpcclient, info->client); + snprintf(ct, sizeof(ct), "GPC%d/", info->gpc); + } + ea = nvkm_enum_find(fifo->func->fault.access, info->access); + + if (ee && ee->data2) { + switch (ee->data2) { + case NVKM_SUBDEV_BAR: + nvkm_mask(device, 0x001704, 0x00000000, 0x00000000); + break; + case NVKM_SUBDEV_INSTMEM: + nvkm_mask(device, 0x001714, 0x00000000, 0x00000000); + break; + case NVKM_ENGINE_IFB: + nvkm_mask(device, 0x001718, 0x00000000, 0x00000000); + break; + default: + engine = nvkm_device_engine(device, ee->data2); + break; + } + } + + if (ee == NULL) { + enum nvkm_devidx engidx = nvkm_top_fault(device, info->engine); + if (engidx < NVKM_SUBDEV_NR) { + const char *src = nvkm_subdev_name[engidx]; + char *dst = en; + do { + *dst++ = toupper(*src++); + } while(*src); + engine = nvkm_device_engine(device, engidx); + } + } else { + snprintf(en, sizeof(en), "%s", ee->name); + } + + spin_lock_irqsave(&fifo->base.lock, flags); + chan = nvkm_fifo_chan_inst_locked(&fifo->base, info->inst); + + nvkm_error(subdev, + "fault %02x [%s] at %016llx engine %02x [%s] client %02x " + "[%s%s] reason %02x [%s] on channel %d [%010llx %s]\n", + info->access, ea ? ea->name : "", info->addr, + info->engine, ee ? ee->name : en, + info->client, ct, ec ? ec->name : "", + info->reason, er ? er->name : "", chan ? chan->chid : -1, + info->inst, chan ? chan->object.client->name : "unknown"); + + /* Kill the channel that caused the fault. */ + if (chan) + gk104_fifo_recover_chan(&fifo->base, chan->chid); + + /* Channel recovery will probably have already done this for the + * correct engine(s), but just in case we can't find the channel + * information... + */ + for (engn = 0; engn < fifo->engine_nr && engine; engn++) { + if (fifo->engine[engn].engine == engine) { + gk104_fifo_recover_engn(fifo, engn); + break; + } + } + + spin_unlock_irqrestore(&fifo->base.lock, flags); +} + static const struct nvkm_enum gk104_fifo_bind_reason[] = { { 0x01, "BIND_NOT_UNBOUND" }, @@ -456,88 +541,21 @@ gk104_fifo_intr_fault(struct gk104_fifo *fifo, int unit) 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 stat = nvkm_rd32(device, 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); - const struct nvkm_enum *er, *eu, *ec; - struct nvkm_engine *engine = NULL; - struct nvkm_fifo_chan *chan; - unsigned long flags; - char gpcid[8] = "", en[16] = ""; - int engn; - - er = nvkm_enum_find(fifo->func->fault.reason, reason); - eu = nvkm_enum_find(fifo->func->fault.engine, unit); - if (hub) { - ec = nvkm_enum_find(fifo->func->fault.hubclient, client); - } else { - ec = nvkm_enum_find(fifo->func->fault.gpcclient, client); - snprintf(gpcid, sizeof(gpcid), "GPC%d/", gpc); - } - - if (eu && eu->data2) { - switch (eu->data2) { - case NVKM_SUBDEV_BAR: - nvkm_mask(device, 0x001704, 0x00000000, 0x00000000); - break; - case NVKM_SUBDEV_INSTMEM: - nvkm_mask(device, 0x001714, 0x00000000, 0x00000000); - break; - case NVKM_ENGINE_IFB: - nvkm_mask(device, 0x001718, 0x00000000, 0x00000000); - break; - default: - engine = nvkm_device_engine(device, eu->data2); - break; - } - } - - if (eu == NULL) { - enum nvkm_devidx engidx = nvkm_top_fault(device, unit); - if (engidx < NVKM_SUBDEV_NR) { - const char *src = nvkm_subdev_name[engidx]; - char *dst = en; - do { - *dst++ = toupper(*src++); - } while(*src); - engine = nvkm_device_engine(device, engidx); - } - } else { - snprintf(en, sizeof(en), "%s", eu->name); - } - - spin_lock_irqsave(&fifo->base.lock, flags); - chan = nvkm_fifo_chan_inst_locked(&fifo->base, (u64)inst << 12); - - nvkm_error(subdev, - "%s fault at %010llx engine %02x [%s] client %02x [%s%s] " - "reason %02x [%s] on channel %d [%010llx %s]\n", - write ? "write" : "read", (u64)vahi << 32 | valo, - unit, en, client, gpcid, ec ? ec->name : "", - reason, er ? er->name : "", chan ? chan->chid : -1, - (u64)inst << 12, - chan ? chan->object.client->name : "unknown"); - - - /* Kill the channel that caused the fault. */ - if (chan) - gk104_fifo_recover_chan(&fifo->base, chan->chid); - - /* Channel recovery will probably have already done this for the - * correct engine(s), but just in case we can't find the channel - * information... - */ - for (engn = 0; engn < fifo->engine_nr && engine; engn++) { - if (fifo->engine[engn].engine == engine) { - gk104_fifo_recover_engn(fifo, engn); - break; - } - } - - spin_unlock_irqrestore(&fifo->base.lock, flags); + 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 & 0x000000ff); + + nvkm_fifo_fault(&fifo->base, &info); } static const struct nvkm_bitfield gk104_fifo_pbdma_intr_0[] = { @@ -897,6 +915,7 @@ gk104_fifo_ = { .init = gk104_fifo_init, .fini = gk104_fifo_fini, .intr = gk104_fifo_intr, + .fault = gk104_fifo_fault, .uevent_init = gk104_fifo_uevent_init, .uevent_fini = gk104_fifo_uevent_fini, .recover_chan = gk104_fifo_recover_chan, @@ -918,6 +937,13 @@ gk104_fifo_new_(const struct gk104_fifo_func *func, struct nvkm_device *device, return nvkm_fifo_ctor(&gk104_fifo_, device, index, nr, &fifo->base); } +const struct nvkm_enum +gk104_fifo_fault_access[] = { + { 0x0, "READ" }, + { 0x1, "WRITE" }, + {} +}; + const struct nvkm_enum gk104_fifo_fault_engine[] = { { 0x00, "GR", NULL, NVKM_ENGINE_GR }, @@ -1035,6 +1061,7 @@ gk104_fifo_fault_gpcclient[] = { static const struct gk104_fifo_func gk104_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gk104_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h index 1579785cf941..0e8b57275e9d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h @@ -44,6 +44,7 @@ struct gk104_fifo { struct gk104_fifo_func { struct { + const struct nvkm_enum *access; const struct nvkm_enum *engine; const struct nvkm_enum *reason; const struct nvkm_enum *hubclient; @@ -59,25 +60,7 @@ void gk104_fifo_runlist_insert(struct gk104_fifo *, struct gk104_fifo_chan *); void gk104_fifo_runlist_remove(struct gk104_fifo *, struct gk104_fifo_chan *); void gk104_fifo_runlist_commit(struct gk104_fifo *, int runl); -static inline u64 -gk104_fifo_engine_subdev(int engine) -{ - switch (engine) { - case 0: return (1ULL << NVKM_ENGINE_GR) | - (1ULL << NVKM_ENGINE_SW) | - (1ULL << NVKM_ENGINE_CE2); - case 1: return (1ULL << NVKM_ENGINE_MSPDEC); - case 2: return (1ULL << NVKM_ENGINE_MSPPP); - case 3: return (1ULL << NVKM_ENGINE_MSVLD); - case 4: return (1ULL << NVKM_ENGINE_CE0); - case 5: return (1ULL << NVKM_ENGINE_CE1); - case 6: return (1ULL << NVKM_ENGINE_MSENC); - default: - WARN_ON(1); - return 0; - } -} - +extern const struct nvkm_enum gk104_fifo_fault_access[]; extern const struct nvkm_enum gk104_fifo_fault_engine[]; extern const struct nvkm_enum gk104_fifo_fault_reason[]; extern const struct nvkm_enum gk104_fifo_fault_hubclient[]; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c index b2f8ab7bf847..ad792b6830e5 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk110.c @@ -26,6 +26,7 @@ static const struct gk104_fifo_func gk110_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gk104_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c index 160617d376e4..5402d22462e8 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk208.c @@ -26,6 +26,7 @@ static const struct gk104_fifo_func gk208_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gk104_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk20a.c index be9f5c16ed7d..0d7f9f59f80c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk20a.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk20a.c @@ -24,6 +24,7 @@ static const struct gk104_fifo_func gk20a_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gk104_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c index 29c080683b32..58a46ee5ee44 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c @@ -49,6 +49,7 @@ gm107_fifo_fault_engine[] = { static const struct gk104_fifo_func gm107_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gm107_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm200.c index b069f785c5d8..f84d5398aebe 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm200.c @@ -26,6 +26,7 @@ static const struct gk104_fifo_func gm200_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gm107_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm20b.c index 2ed87c2e8299..66399b9572a6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm20b.c @@ -24,6 +24,7 @@ static const struct gk104_fifo_func gm20b_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gm107_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp100.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp100.c index 41f16cf5a918..2b8a6cff7a68 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp100.c @@ -50,6 +50,7 @@ gp100_fifo_fault_engine[] = { static const struct gk104_fifo_func gp100_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gp100_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp10b.c index 4af96c3e69ff..71b8d93b4368 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp10b.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gp10b.c @@ -24,6 +24,7 @@ static const struct gk104_fifo_func gp10b_fifo = { + .fault.access = gk104_fifo_fault_access, .fault.engine = gp100_fifo_fault_engine, .fault.reason = gk104_fifo_fault_reason, .fault.hubclient = gk104_fifo_fault_hubclient, diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h index ae76b1aaccd4..df74b54773b9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h @@ -21,6 +21,7 @@ struct nvkm_fifo_func { void (*init)(struct nvkm_fifo *); void (*fini)(struct nvkm_fifo *); void (*intr)(struct nvkm_fifo *); + void (*fault)(struct nvkm_fifo *, struct nvkm_fault_data *); void (*pause)(struct nvkm_fifo *, unsigned long *); void (*start)(struct nvkm_fifo *, unsigned long *); void (*uevent_init)(struct nvkm_fifo *);