diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_fifo.c | 506 |
1 files changed, 0 insertions, 506 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c b/drivers/gpu/drm/nouveau/nv04_fifo.c deleted file mode 100644 index a6295cd00ec7..000000000000 --- a/drivers/gpu/drm/nouveau/nv04_fifo.c +++ /dev/null @@ -1,506 +0,0 @@ -/* - * Copyright (C) 2012 Ben Skeggs. - * All Rights Reserved. - * - * 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 (including the - * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" -#include "nouveau_fifo.h" -#include "nouveau_util.h" -#include "nouveau_ramht.h" -#include "nouveau_software.h" - -static struct ramfc_desc { - unsigned bits:6; - unsigned ctxs:5; - unsigned ctxp:8; - unsigned regs:5; - unsigned regp; -} nv04_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 }, - {} -}; - -struct nv04_fifo_priv { - struct nouveau_fifo_priv base; - struct ramfc_desc *ramfc_desc; -}; - -struct nv04_fifo_chan { - struct nouveau_fifo_chan base; - struct nouveau_gpuobj *ramfc; -}; - -bool -nv04_fifo_cache_pull(struct drm_device *dev, bool enable) -{ - int pull = nv_mask(dev, NV04_PFIFO_CACHE1_PULL0, 1, enable); - - if (!enable) { - /* In some cases the PFIFO puller may be left in an - * inconsistent state if you try to stop it when it's - * busy translating handles. Sometimes you get a - * PFIFO_CACHE_ERROR, sometimes it just fails silently - * sending incorrect instance offsets to PGRAPH after - * it's started up again. To avoid the latter we - * invalidate the most recently calculated instance. - */ - if (!nv_wait(dev, NV04_PFIFO_CACHE1_PULL0, - NV04_PFIFO_CACHE1_PULL0_HASH_BUSY, 0)) - NV_ERROR(dev, "Timeout idling the PFIFO puller.\n"); - - if (nv_rd32(dev, NV04_PFIFO_CACHE1_PULL0) & - NV04_PFIFO_CACHE1_PULL0_HASH_FAILED) - nv_wr32(dev, NV03_PFIFO_INTR_0, - NV_PFIFO_INTR_CACHE_ERROR); - - nv_wr32(dev, NV04_PFIFO_CACHE1_HASH, 0); - } - - return pull & 1; -} - -static int -nv04_fifo_context_new(struct nouveau_channel *chan, int engine) -{ - struct drm_device *dev = chan->dev; - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv = nv_engine(dev, engine); - struct nv04_fifo_chan *fctx; - unsigned long flags; - int ret; - - fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL); - if (!fctx) - return -ENOMEM; - - /* map channel control registers */ - chan->user = ioremap(pci_resource_start(dev->pdev, 0) + - NV03_USER(chan->id), PAGE_SIZE); - if (!chan->user) { - ret = -ENOMEM; - goto error; - } - - /* initialise default fifo context */ - ret = nouveau_gpuobj_new_fake(dev, dev_priv->ramfc->pinst + - chan->id * 32, ~0, 32, - NVOBJ_FLAG_ZERO_FREE, &fctx->ramfc); - if (ret) - goto error; - - nv_wo32(fctx->ramfc, 0x00, chan->pushbuf_base); - nv_wo32(fctx->ramfc, 0x04, chan->pushbuf_base); - nv_wo32(fctx->ramfc, 0x08, chan->pushbuf->pinst >> 4); - nv_wo32(fctx->ramfc, 0x0c, 0x00000000); - nv_wo32(fctx->ramfc, 0x10, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES | - NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES | -#ifdef __BIG_ENDIAN - NV_PFIFO_CACHE1_BIG_ENDIAN | -#endif - NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8); - nv_wo32(fctx->ramfc, 0x14, 0x00000000); - nv_wo32(fctx->ramfc, 0x18, 0x00000000); - nv_wo32(fctx->ramfc, 0x1c, 0x00000000); - - /* enable dma mode on the channel */ - spin_lock_irqsave(&dev_priv->context_switch_lock, flags); - nv_mask(dev, NV04_PFIFO_MODE, (1 << chan->id), (1 << chan->id)); - spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); - -error: - if (ret) - priv->base.base.context_del(chan, engine); - return ret; -} - -void -nv04_fifo_context_del(struct nouveau_channel *chan, int engine) -{ - struct drm_device *dev = chan->dev; - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv = nv_engine(chan->dev, engine); - struct nv04_fifo_chan *fctx = chan->engctx[engine]; - struct ramfc_desc *c = priv->ramfc_desc; - unsigned long flags; - int chid; - - /* prevent fifo context switches */ - spin_lock_irqsave(&dev_priv->context_switch_lock, flags); - nv_wr32(dev, NV03_PFIFO_CACHES, 0); - - /* if this channel is active, replace it with a null context */ - chid = nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) & priv->base.channels; - if (chid == chan->id) { - nv_mask(dev, NV04_PFIFO_CACHE1_DMA_PUSH, 0x00000001, 0); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 0); - nv_mask(dev, NV04_PFIFO_CACHE1_PULL0, 0x00000001, 0); - - do { - u32 mask = ((1ULL << c->bits) - 1) << c->regs; - nv_mask(dev, c->regp, mask, 0x00000000); - } while ((++c)->bits); - - nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, priv->base.channels); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1); - nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); - } - - /* restore normal operation, after disabling dma mode */ - nv_mask(dev, NV04_PFIFO_MODE, 1 << chan->id, 0); - nv_wr32(dev, NV03_PFIFO_CACHES, 1); - spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); - - /* clean up */ - nouveau_gpuobj_ref(NULL, &fctx->ramfc); - nouveau_gpuobj_ref(NULL, &chan->ramfc); /*XXX: nv40 */ - if (chan->user) { - iounmap(chan->user); - chan->user = NULL; - } -} - -int -nv04_fifo_init(struct drm_device *dev, int engine) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv = nv_engine(dev, engine); - int i; - - nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, 0); - nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, NV_PMC_ENABLE_PFIFO); - - nv_wr32(dev, NV04_PFIFO_DELAY_0, 0x000000ff); - nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff); - - nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ | - ((dev_priv->ramht->bits - 9) << 16) | - (dev_priv->ramht->gpuobj->pinst >> 8)); - nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro->pinst >> 8); - nv_wr32(dev, NV03_PFIFO_RAMFC, dev_priv->ramfc->pinst >> 8); - - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, priv->base.channels); - - nv_wr32(dev, NV03_PFIFO_INTR_0, 0xffffffff); - nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0xffffffff); - - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1); - nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); - nv_wr32(dev, NV03_PFIFO_CACHES, 1); - - for (i = 0; i < priv->base.channels; i++) { - if (dev_priv->channels.ptr[i]) - nv_mask(dev, NV04_PFIFO_MODE, (1 << i), (1 << i)); - } - - return 0; -} - -int -nv04_fifo_fini(struct drm_device *dev, int engine, bool suspend) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv = nv_engine(dev, engine); - struct nouveau_channel *chan; - int chid; - - /* prevent context switches and halt fifo operation */ - nv_wr32(dev, NV03_PFIFO_CACHES, 0); - nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, 0); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 0); - nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 0); - - /* store current fifo context in ramfc */ - chid = nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) & priv->base.channels; - chan = dev_priv->channels.ptr[chid]; - if (suspend && chid != priv->base.channels && chan) { - struct nv04_fifo_chan *fctx = chan->engctx[engine]; - struct nouveau_gpuobj *ctx = fctx->ramfc; - struct ramfc_desc *c = priv->ramfc_desc; - do { - u32 rm = ((1ULL << c->bits) - 1) << c->regs; - u32 cm = ((1ULL << c->bits) - 1) << c->ctxs; - u32 rv = (nv_rd32(dev, c->regp) & rm) >> c->regs; - u32 cv = (nv_ro32(ctx, c->ctxp) & ~cm); - nv_wo32(ctx, c->ctxp, cv | (rv << c->ctxs)); - } while ((++c)->bits); - } - - nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0x00000000); - return 0; -} - -static bool -nouveau_fifo_swmthd(struct drm_device *dev, u32 chid, u32 addr, u32 data) -{ - struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_channel *chan = NULL; - struct nouveau_gpuobj *obj; - unsigned long flags; - const int subc = (addr >> 13) & 0x7; - const int mthd = addr & 0x1ffc; - bool handled = false; - u32 engine; - - spin_lock_irqsave(&dev_priv->channels.lock, flags); - if (likely(chid >= 0 && chid < pfifo->channels)) - chan = dev_priv->channels.ptr[chid]; - if (unlikely(!chan)) - goto out; - - switch (mthd) { - case 0x0000: /* bind object to subchannel */ - obj = nouveau_ramht_find(chan, data); - if (unlikely(!obj || obj->engine != NVOBJ_ENGINE_SW)) - break; - - engine = 0x0000000f << (subc * 4); - - nv_mask(dev, NV04_PFIFO_CACHE1_ENGINE, engine, 0x00000000); - handled = true; - break; - default: - engine = nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE); - if (unlikely(((engine >> (subc * 4)) & 0xf) != 0)) - break; - - if (!nouveau_gpuobj_mthd_call(chan, nouveau_software_class(dev), - mthd, data)) - handled = true; - break; - } - -out: - spin_unlock_irqrestore(&dev_priv->channels.lock, flags); - return handled; -} - -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]; -} - -void -nv04_fifo_isr(struct drm_device *dev) -{ - struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO); - struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t status, reassign; - int cnt = 0; - - reassign = nv_rd32(dev, NV03_PFIFO_CACHES) & 1; - while ((status = nv_rd32(dev, NV03_PFIFO_INTR_0)) && (cnt++ < 100)) { - uint32_t chid, get; - - nv_wr32(dev, NV03_PFIFO_CACHES, 0); - - chid = nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) & pfifo->channels; - get = nv_rd32(dev, NV03_PFIFO_CACHE1_GET); - - if (status & NV_PFIFO_INTR_CACHE_ERROR) { - uint32_t 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 (dev_priv->card_type < NV_40) { - mthd = nv_rd32(dev, - NV04_PFIFO_CACHE1_METHOD(ptr)); - data = nv_rd32(dev, - NV04_PFIFO_CACHE1_DATA(ptr)); - } else { - mthd = nv_rd32(dev, - NV40_PFIFO_CACHE1_METHOD(ptr)); - data = nv_rd32(dev, - NV40_PFIFO_CACHE1_DATA(ptr)); - } - - if (!nouveau_fifo_swmthd(dev, chid, mthd, data)) { - NV_INFO(dev, "PFIFO_CACHE_ERROR - Ch %d/%d " - "Mthd 0x%04x Data 0x%08x\n", - chid, (mthd >> 13) & 7, mthd & 0x1ffc, - data); - } - - nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, 0); - nv_wr32(dev, NV03_PFIFO_INTR_0, - NV_PFIFO_INTR_CACHE_ERROR); - - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, - nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH0) & ~1); - nv_wr32(dev, NV03_PFIFO_CACHE1_GET, get + 4); - nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, - nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH0) | 1); - nv_wr32(dev, NV04_PFIFO_CACHE1_HASH, 0); - - nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, - nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUSH) | 1); - nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); - - status &= ~NV_PFIFO_INTR_CACHE_ERROR; - } - - if (status & NV_PFIFO_INTR_DMA_PUSHER) { - u32 dma_get = nv_rd32(dev, 0x003244); - u32 dma_put = nv_rd32(dev, 0x003240); - u32 push = nv_rd32(dev, 0x003220); - u32 state = nv_rd32(dev, 0x003228); - - if (dev_priv->card_type == NV_50) { - u32 ho_get = nv_rd32(dev, 0x003328); - u32 ho_put = nv_rd32(dev, 0x003320); - u32 ib_get = nv_rd32(dev, 0x003334); - u32 ib_put = nv_rd32(dev, 0x003330); - - if (nouveau_ratelimit()) - NV_INFO(dev, "PFIFO_DMA_PUSHER - Ch %d Get 0x%02x%08x " - "Put 0x%02x%08x IbGet 0x%08x IbPut 0x%08x " - "State 0x%08x (err: %s) Push 0x%08x\n", - chid, 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 */ - nv_wr32(dev, 0x003364, 0x00000000); - if (dma_get != dma_put || ho_get != ho_put) { - nv_wr32(dev, 0x003244, dma_put); - nv_wr32(dev, 0x003328, ho_put); - } else - if (ib_get != ib_put) { - nv_wr32(dev, 0x003334, ib_put); - } - } else { - NV_INFO(dev, "PFIFO_DMA_PUSHER - Ch %d Get 0x%08x " - "Put 0x%08x State 0x%08x (err: %s) Push 0x%08x\n", - chid, dma_get, dma_put, state, - nv_dma_state_err(state), push); - - if (dma_get != dma_put) - nv_wr32(dev, 0x003244, dma_put); - } - - nv_wr32(dev, 0x003228, 0x00000000); - nv_wr32(dev, 0x003220, 0x00000001); - nv_wr32(dev, 0x002100, NV_PFIFO_INTR_DMA_PUSHER); - status &= ~NV_PFIFO_INTR_DMA_PUSHER; - } - - if (status & NV_PFIFO_INTR_SEMAPHORE) { - uint32_t sem; - - status &= ~NV_PFIFO_INTR_SEMAPHORE; - nv_wr32(dev, NV03_PFIFO_INTR_0, - NV_PFIFO_INTR_SEMAPHORE); - - sem = nv_rd32(dev, NV10_PFIFO_CACHE1_SEMAPHORE); - nv_wr32(dev, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1); - - nv_wr32(dev, NV03_PFIFO_CACHE1_GET, get + 4); - nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); - } - - if (dev_priv->card_type == NV_50) { - if (status & 0x00000010) { - nv50_fb_vm_trap(dev, nouveau_ratelimit()); - status &= ~0x00000010; - nv_wr32(dev, 0x002100, 0x00000010); - } - } - - if (status) { - if (nouveau_ratelimit()) - NV_INFO(dev, "PFIFO_INTR 0x%08x - Ch %d\n", - status, chid); - nv_wr32(dev, NV03_PFIFO_INTR_0, status); - status = 0; - } - - nv_wr32(dev, NV03_PFIFO_CACHES, reassign); - } - - if (status) { - NV_INFO(dev, "PFIFO still angry after %d spins, halt\n", cnt); - nv_wr32(dev, 0x2140, 0); - nv_wr32(dev, 0x140, 0); - } - - nv_wr32(dev, NV03_PMC_INTR_0, NV_PMC_INTR_0_PFIFO_PENDING); -} - -void -nv04_fifo_destroy(struct drm_device *dev, int engine) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv = nv_engine(dev, engine); - - nouveau_irq_unregister(dev, 8); - - dev_priv->eng[engine] = NULL; - kfree(priv); -} - -int -nv04_fifo_create(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv04_fifo_priv *priv; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - priv->base.base.destroy = nv04_fifo_destroy; - priv->base.base.init = nv04_fifo_init; - priv->base.base.fini = nv04_fifo_fini; - priv->base.base.context_new = nv04_fifo_context_new; - priv->base.base.context_del = nv04_fifo_context_del; - priv->base.channels = 15; - priv->ramfc_desc = nv04_ramfc; - dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base; - - nouveau_irq_register(dev, 8, nv04_fifo_isr); - return 0; -} |