From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c | 399 ++++++++++++++++++++++++ 1 file changed, 399 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c new file mode 100644 index 000000000..c6730c124 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c @@ -0,0 +1,399 @@ +/* + * 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 "nv04.h" +#include "channv04.h" +#include "regsnv04.h" + +#include +#include +#include +#include +#include + +static const struct nv04_fifo_ramfc +nv04_fifo_ramfc[] = { + { 32, 0, 0x00, 0, NV04_PFIFO_CACHE1_DMA_PUT }, + { 32, 0, 0x04, 0, NV04_PFIFO_CACHE1_DMA_GET }, + { 16, 0, 0x08, 0, NV04_PFIFO_CACHE1_DMA_INSTANCE }, + { 16, 16, 0x08, 0, NV04_PFIFO_CACHE1_DMA_DCOUNT }, + { 32, 0, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_STATE }, + { 32, 0, 0x10, 0, NV04_PFIFO_CACHE1_DMA_FETCH }, + { 32, 0, 0x14, 0, NV04_PFIFO_CACHE1_ENGINE }, + { 32, 0, 0x18, 0, NV04_PFIFO_CACHE1_PULL1 }, + {} +}; + +void +nv04_fifo_pause(struct nvkm_fifo *base, unsigned long *pflags) +__acquires(fifo->base.lock) +{ + struct nv04_fifo *fifo = nv04_fifo(base); + struct nvkm_device *device = fifo->base.engine.subdev.device; + unsigned long flags; + + spin_lock_irqsave(&fifo->base.lock, flags); + *pflags = flags; + + nvkm_wr32(device, NV03_PFIFO_CACHES, 0x00000000); + nvkm_mask(device, NV04_PFIFO_CACHE1_PULL0, 0x00000001, 0x00000000); + + /* in some cases the puller may be left in an inconsistent state + * if you try to stop it while it's busy translating handles. + * sometimes you get a CACHE_ERROR, sometimes it just fails + * silently; sending incorrect instance offsets to PGRAPH after + * it's started up again. + * + * to avoid this, we invalidate the most recently calculated + * instance. + */ + nvkm_msec(device, 2000, + u32 tmp = nvkm_rd32(device, NV04_PFIFO_CACHE1_PULL0); + if (!(tmp & NV04_PFIFO_CACHE1_PULL0_HASH_BUSY)) + break; + ); + + if (nvkm_rd32(device, NV04_PFIFO_CACHE1_PULL0) & + NV04_PFIFO_CACHE1_PULL0_HASH_FAILED) + nvkm_wr32(device, NV03_PFIFO_INTR_0, NV_PFIFO_INTR_CACHE_ERROR); + + nvkm_wr32(device, NV04_PFIFO_CACHE1_HASH, 0x00000000); +} + +void +nv04_fifo_start(struct nvkm_fifo *base, unsigned long *pflags) +__releases(fifo->base.lock) +{ + struct nv04_fifo *fifo = nv04_fifo(base); + struct nvkm_device *device = fifo->base.engine.subdev.device; + unsigned long flags = *pflags; + + nvkm_mask(device, NV04_PFIFO_CACHE1_PULL0, 0x00000001, 0x00000001); + nvkm_wr32(device, NV03_PFIFO_CACHES, 0x00000001); + + spin_unlock_irqrestore(&fifo->base.lock, flags); +} + +struct nvkm_engine * +nv04_fifo_id_engine(struct nvkm_fifo *fifo, int engi) +{ + enum nvkm_subdev_type type; + + switch (engi) { + case NV04_FIFO_ENGN_SW : type = NVKM_ENGINE_SW; break; + case NV04_FIFO_ENGN_GR : type = NVKM_ENGINE_GR; break; + case NV04_FIFO_ENGN_MPEG: type = NVKM_ENGINE_MPEG; break; + case NV04_FIFO_ENGN_DMA : type = NVKM_ENGINE_DMAOBJ; break; + default: + WARN_ON(1); + return NULL; + } + + return nvkm_device_engine(fifo->engine.subdev.device, type, 0); +} + +int +nv04_fifo_engine_id(struct nvkm_fifo *base, struct nvkm_engine *engine) +{ + switch (engine->subdev.type) { + case NVKM_ENGINE_SW : return NV04_FIFO_ENGN_SW; + case NVKM_ENGINE_GR : return NV04_FIFO_ENGN_GR; + case NVKM_ENGINE_MPEG : return NV04_FIFO_ENGN_MPEG; + case NVKM_ENGINE_DMAOBJ: return NV04_FIFO_ENGN_DMA; + default: + WARN_ON(1); + return 0; + } +} + +static const char * +nv_dma_state_err(u32 state) +{ + static const char * const desc[] = { + "NONE", "CALL_SUBR_ACTIVE", "INVALID_MTHD", "RET_SUBR_INACTIVE", + "INVALID_CMD", "IB_EMPTY"/* NV50+ */, "MEM_FAULT", "UNK" + }; + return desc[(state >> 29) & 0x7]; +} + +static bool +nv04_fifo_swmthd(struct nvkm_device *device, u32 chid, u32 addr, u32 data) +{ + struct nvkm_sw *sw = device->sw; + const int subc = (addr & 0x0000e000) >> 13; + const int mthd = (addr & 0x00001ffc); + const u32 mask = 0x0000000f << (subc * 4); + u32 engine = nvkm_rd32(device, 0x003280); + bool handled = false; + + switch (mthd) { + case 0x0000 ... 0x0000: /* subchannel's engine -> software */ + nvkm_wr32(device, 0x003280, (engine &= ~mask)); + fallthrough; + case 0x0180 ... 0x01fc: /* handle -> instance */ + data = nvkm_rd32(device, 0x003258) & 0x0000ffff; + fallthrough; + case 0x0100 ... 0x017c: + case 0x0200 ... 0x1ffc: /* pass method down to sw */ + if (!(engine & mask) && sw) + handled = nvkm_sw_mthd(sw, chid, subc, mthd, data); + break; + default: + break; + } + + return handled; +} + +static void +nv04_fifo_cache_error(struct nv04_fifo *fifo, u32 chid, u32 get) +{ + struct nvkm_subdev *subdev = &fifo->base.engine.subdev; + struct nvkm_device *device = subdev->device; + struct nvkm_fifo_chan *chan; + unsigned long flags; + u32 pull0 = nvkm_rd32(device, 0x003250); + u32 mthd, data; + int ptr; + + /* NV_PFIFO_CACHE1_GET actually goes to 0xffc before wrapping on my + * G80 chips, but CACHE1 isn't big enough for this much data.. Tests + * show that it wraps around to the start at GET=0x800.. No clue as to + * why.. + */ + ptr = (get & 0x7ff) >> 2; + + if (device->card_type < NV_40) { + mthd = nvkm_rd32(device, NV04_PFIFO_CACHE1_METHOD(ptr)); + data = nvkm_rd32(device, NV04_PFIFO_CACHE1_DATA(ptr)); + } else { + mthd = nvkm_rd32(device, NV40_PFIFO_CACHE1_METHOD(ptr)); + data = nvkm_rd32(device, NV40_PFIFO_CACHE1_DATA(ptr)); + } + + if (!(pull0 & 0x00000100) || + !nv04_fifo_swmthd(device, chid, mthd, data)) { + chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags); + nvkm_error(subdev, "CACHE_ERROR - " + "ch %d [%s] subc %d mthd %04x data %08x\n", + chid, chan ? chan->object.client->name : "unknown", + (mthd >> 13) & 7, mthd & 0x1ffc, data); + nvkm_fifo_chan_put(&fifo->base, flags, &chan); + } + + nvkm_wr32(device, NV04_PFIFO_CACHE1_DMA_PUSH, 0); + nvkm_wr32(device, NV03_PFIFO_INTR_0, NV_PFIFO_INTR_CACHE_ERROR); + + nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH0, + nvkm_rd32(device, NV03_PFIFO_CACHE1_PUSH0) & ~1); + nvkm_wr32(device, NV03_PFIFO_CACHE1_GET, get + 4); + nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH0, + nvkm_rd32(device, NV03_PFIFO_CACHE1_PUSH0) | 1); + nvkm_wr32(device, NV04_PFIFO_CACHE1_HASH, 0); + + nvkm_wr32(device, NV04_PFIFO_CACHE1_DMA_PUSH, + nvkm_rd32(device, NV04_PFIFO_CACHE1_DMA_PUSH) | 1); + nvkm_wr32(device, NV04_PFIFO_CACHE1_PULL0, 1); +} + +static void +nv04_fifo_dma_pusher(struct nv04_fifo *fifo, u32 chid) +{ + struct nvkm_subdev *subdev = &fifo->base.engine.subdev; + struct nvkm_device *device = subdev->device; + u32 dma_get = nvkm_rd32(device, 0x003244); + u32 dma_put = nvkm_rd32(device, 0x003240); + u32 push = nvkm_rd32(device, 0x003220); + u32 state = nvkm_rd32(device, 0x003228); + struct nvkm_fifo_chan *chan; + unsigned long flags; + const char *name; + + chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags); + name = chan ? chan->object.client->name : "unknown"; + if (device->card_type == NV_50) { + u32 ho_get = nvkm_rd32(device, 0x003328); + u32 ho_put = nvkm_rd32(device, 0x003320); + u32 ib_get = nvkm_rd32(device, 0x003334); + u32 ib_put = nvkm_rd32(device, 0x003330); + + nvkm_error(subdev, "DMA_PUSHER - " + "ch %d [%s] get %02x%08x put %02x%08x ib_get %08x " + "ib_put %08x state %08x (err: %s) push %08x\n", + chid, name, ho_get, dma_get, ho_put, dma_put, + ib_get, ib_put, state, nv_dma_state_err(state), + push); + + /* METHOD_COUNT, in DMA_STATE on earlier chipsets */ + nvkm_wr32(device, 0x003364, 0x00000000); + if (dma_get != dma_put || ho_get != ho_put) { + nvkm_wr32(device, 0x003244, dma_put); + nvkm_wr32(device, 0x003328, ho_put); + } else + if (ib_get != ib_put) + nvkm_wr32(device, 0x003334, ib_put); + } else { + nvkm_error(subdev, "DMA_PUSHER - ch %d [%s] get %08x put %08x " + "state %08x (err: %s) push %08x\n", + chid, name, dma_get, dma_put, state, + nv_dma_state_err(state), push); + + if (dma_get != dma_put) + nvkm_wr32(device, 0x003244, dma_put); + } + nvkm_fifo_chan_put(&fifo->base, flags, &chan); + + nvkm_wr32(device, 0x003228, 0x00000000); + nvkm_wr32(device, 0x003220, 0x00000001); + nvkm_wr32(device, 0x002100, NV_PFIFO_INTR_DMA_PUSHER); +} + +void +nv04_fifo_intr(struct nvkm_fifo *base) +{ + struct nv04_fifo *fifo = nv04_fifo(base); + struct nvkm_subdev *subdev = &fifo->base.engine.subdev; + struct nvkm_device *device = subdev->device; + u32 mask = nvkm_rd32(device, NV03_PFIFO_INTR_EN_0); + u32 stat = nvkm_rd32(device, NV03_PFIFO_INTR_0) & mask; + u32 reassign, chid, get, sem; + + reassign = nvkm_rd32(device, NV03_PFIFO_CACHES) & 1; + nvkm_wr32(device, NV03_PFIFO_CACHES, 0); + + chid = nvkm_rd32(device, NV03_PFIFO_CACHE1_PUSH1) & (fifo->base.nr - 1); + get = nvkm_rd32(device, NV03_PFIFO_CACHE1_GET); + + if (stat & NV_PFIFO_INTR_CACHE_ERROR) { + nv04_fifo_cache_error(fifo, chid, get); + stat &= ~NV_PFIFO_INTR_CACHE_ERROR; + } + + if (stat & NV_PFIFO_INTR_DMA_PUSHER) { + nv04_fifo_dma_pusher(fifo, chid); + stat &= ~NV_PFIFO_INTR_DMA_PUSHER; + } + + if (stat & NV_PFIFO_INTR_SEMAPHORE) { + stat &= ~NV_PFIFO_INTR_SEMAPHORE; + nvkm_wr32(device, NV03_PFIFO_INTR_0, NV_PFIFO_INTR_SEMAPHORE); + + sem = nvkm_rd32(device, NV10_PFIFO_CACHE1_SEMAPHORE); + nvkm_wr32(device, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1); + + nvkm_wr32(device, NV03_PFIFO_CACHE1_GET, get + 4); + nvkm_wr32(device, NV04_PFIFO_CACHE1_PULL0, 1); + } + + if (device->card_type == NV_50) { + if (stat & 0x00000010) { + stat &= ~0x00000010; + nvkm_wr32(device, 0x002100, 0x00000010); + } + + if (stat & 0x40000000) { + nvkm_wr32(device, 0x002100, 0x40000000); + nvkm_fifo_uevent(&fifo->base); + stat &= ~0x40000000; + } + } + + if (stat) { + nvkm_warn(subdev, "intr %08x\n", stat); + nvkm_mask(device, NV03_PFIFO_INTR_EN_0, stat, 0x00000000); + nvkm_wr32(device, NV03_PFIFO_INTR_0, stat); + } + + nvkm_wr32(device, NV03_PFIFO_CACHES, reassign); +} + +void +nv04_fifo_init(struct nvkm_fifo *base) +{ + struct nv04_fifo *fifo = nv04_fifo(base); + struct nvkm_device *device = fifo->base.engine.subdev.device; + struct nvkm_instmem *imem = device->imem; + struct nvkm_ramht *ramht = imem->ramht; + struct nvkm_memory *ramro = imem->ramro; + struct nvkm_memory *ramfc = imem->ramfc; + + nvkm_wr32(device, NV04_PFIFO_DELAY_0, 0x000000ff); + nvkm_wr32(device, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff); + + nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ | + ((ramht->bits - 9) << 16) | + (ramht->gpuobj->addr >> 8)); + nvkm_wr32(device, NV03_PFIFO_RAMRO, nvkm_memory_addr(ramro) >> 8); + nvkm_wr32(device, NV03_PFIFO_RAMFC, nvkm_memory_addr(ramfc) >> 8); + + nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH1, fifo->base.nr - 1); + + nvkm_wr32(device, NV03_PFIFO_INTR_0, 0xffffffff); + nvkm_wr32(device, NV03_PFIFO_INTR_EN_0, 0xffffffff); + + nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH0, 1); + nvkm_wr32(device, NV04_PFIFO_CACHE1_PULL0, 1); + nvkm_wr32(device, NV03_PFIFO_CACHES, 1); +} + +int +nv04_fifo_new_(const struct nvkm_fifo_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, int nr, const struct nv04_fifo_ramfc *ramfc, + struct nvkm_fifo **pfifo) +{ + struct nv04_fifo *fifo; + int ret; + + if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL))) + return -ENOMEM; + fifo->ramfc = ramfc; + *pfifo = &fifo->base; + + ret = nvkm_fifo_ctor(func, device, type, inst, nr, &fifo->base); + if (ret) + return ret; + + set_bit(nr - 1, fifo->base.mask); /* inactive channel */ + return 0; +} + +static const struct nvkm_fifo_func +nv04_fifo = { + .init = nv04_fifo_init, + .intr = nv04_fifo_intr, + .engine_id = nv04_fifo_engine_id, + .id_engine = nv04_fifo_id_engine, + .pause = nv04_fifo_pause, + .start = nv04_fifo_start, + .chan = { + &nv04_fifo_dma_oclass, + NULL + }, +}; + +int +nv04_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_fifo **pfifo) +{ + return nv04_fifo_new_(&nv04_fifo, device, type, inst, 16, nv04_fifo_ramfc, pfifo); +} -- cgit v1.2.3