drm/nouveau: move PFIFO ISR into nv04_fifo.c
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c b/drivers/gpu/drm/nouveau/nv04_fifo.c
index 4c0d3a8..a32ba8c 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 @@
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 @@
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);
+}