diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_fifo.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c b/drivers/gpu/drm/nouveau/nv04_fifo.c index 4c0d3a8fca68..a32ba8ccaae6 100644 --- a/drivers/gpu/drm/nouveau/nv04_fifo.c +++ b/drivers/gpu/drm/nouveau/nv04_fifo.c @@ -28,6 +28,7 @@ #include "drm.h" #include "nouveau_drv.h" #include "nouveau_ramht.h" +#include "nouveau_util.h" #define NV04_RAMFC(c) (dev_priv->ramfc->pinst + ((c) * NV04_RAMFC__SIZE)) #define NV04_RAMFC__SIZE 32 @@ -284,6 +285,7 @@ nv04_fifo_init_ramxx(struct drm_device *dev) static void nv04_fifo_init_intr(struct drm_device *dev) { + nouveau_irq_register(dev, 8, nv04_fifo_isr); nv_wr32(dev, 0x002100, 0xffffffff); nv_wr32(dev, 0x002140, 0xffffffff); } @@ -315,3 +317,207 @@ nv04_fifo_init(struct drm_device *dev) return 0; } +void +nv04_fifo_fini(struct drm_device *dev) +{ + nv_wr32(dev, 0x2140, 0x00000000); + nouveau_irq_unregister(dev, 8); +} + +static bool +nouveau_fifo_swmthd(struct drm_device *dev, u32 chid, u32 addr, u32 data) +{ + 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 < dev_priv->engine.fifo.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; + + chan->sw_subchannel[subc] = obj->class; + 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, chan->sw_subchannel[subc], + mthd, data)) + handled = true; + break; + } + +out: + spin_unlock_irqrestore(&dev_priv->channels.lock, flags); + return handled; +} + +void +nv04_fifo_isr(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_engine *engine = &dev_priv->engine; + 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 = engine->fifo.channel_id(dev); + 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 Push 0x%08x\n", + chid, ho_get, dma_get, ho_put, + dma_put, ib_get, ib_put, 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 Push 0x%08x\n", + chid, dma_get, dma_put, 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, 1, "PFIFO_BAR_FAULT"); + 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); +} |