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nouveau: Remove some random (french) comment.
[android-x86/external-libdrm.git] / shared-core / nouveau_fifo.c
index 98a1344..056cb6d 100644 (file)
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright 2005-2006 Stephane Marchesin
  * All Rights Reserved.
  *
 #include "nouveau_drm.h"
 
 
-/* returns the number of hw fifos */
-int nouveau_fifo_number(drm_device_t* dev)
-{
-       drm_nouveau_private_t *dev_priv=dev->dev_private;
-       switch(dev_priv->card_type)
-       {
-               case NV_03:
-                       return 8;
-               case NV_04:
-               case NV_05:
-                       return 16;
-               default:
-                       return 32;
-       }
-}
-
 /* returns the size of fifo context */
-static int nouveau_fifo_ctx_size(drm_device_t* dev)
+int nouveau_fifo_ctx_size(struct drm_device *dev)
 {
-       drm_nouveau_private_t *dev_priv=dev->dev_private;
+       struct drm_nouveau_private *dev_priv=dev->dev_private;
 
        if (dev_priv->card_type >= NV_40)
                return 128;
-       else if (dev_priv->card_type >= NV_10)
+       else if (dev_priv->card_type >= NV_17)
                return 64;
        else
                return 32;
@@ -61,96 +45,68 @@ static int nouveau_fifo_ctx_size(drm_device_t* dev)
  * functions doing the actual work
  ***********************************/
 
-/* voir nv_xaa.c : NVResetGraphics
- * mémoire mappée par nv_driver.c : NVMapMem
- * voir nv_driver.c : NVPreInit 
- */
-
-static int nouveau_fifo_instmem_configure(drm_device_t *dev)
+static int nouveau_fifo_instmem_configure(struct drm_device *dev)
 {
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       int i;
-
-       /* Clear start of RAMIN, enough to cover RAMFC/HT/RO basically */
-       for (i=0x00710000; i<0x00730000; i++)
-               NV_WRITE(i, 0x00000000);
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
 
-       /* FIFO hash table (RAMHT)
-        *   use 4k hash table at RAMIN+0x10000
-        *   TODO: extend the hash table
-        */
-       dev_priv->ramht_offset = 0x10000;
-       dev_priv->ramht_bits   = 9;
-       dev_priv->ramht_size   = (1 << dev_priv->ramht_bits);
-       NV_WRITE(NV_PFIFO_RAMHT,
-                       (0x03 << 24) /* search 128 */ | 
+       NV_WRITE(NV03_PFIFO_RAMHT,
+                       (0x03 << 24) /* search 128 */ |
                        ((dev_priv->ramht_bits - 9) << 16) |
                        (dev_priv->ramht_offset >> 8)
                        );
-       DRM_DEBUG("RAMHT offset=0x%x, size=%d\n",
-                       dev_priv->ramht_offset,
-                       dev_priv->ramht_size);
-
-       /* FIFO runout table (RAMRO) - 512k at 0x11200 */
-       dev_priv->ramro_offset = 0x11200;
-       dev_priv->ramro_size   = 512;
-       NV_WRITE(NV_PFIFO_RAMRO, dev_priv->ramro_offset>>8);
-       DRM_DEBUG("RAMRO offset=0x%x, size=%d\n",
-                       dev_priv->ramro_offset,
-                       dev_priv->ramro_size);
-
-       /* FIFO context table (RAMFC)
-        *   NV40  : Not sure exactly how to position RAMFC on some cards,
-        *           0x30002 seems to position it at RAMIN+0x20000 on these
-        *           cards.  RAMFC is 4kb (32 fifos, 128byte entries).
-        *   Others: Position RAMFC at RAMIN+0x11400
-        */
+
+       NV_WRITE(NV03_PFIFO_RAMRO, dev_priv->ramro_offset>>8);
+
        switch(dev_priv->card_type)
        {
-               case NV_50:
                case NV_40:
-                       dev_priv->ramfc_offset = 0x20000;
-                       dev_priv->ramfc_size   = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
+                       switch (dev_priv->chipset) {
+                       case 0x47:
+                       case 0x49:
+                       case 0x4b:
+                               NV_WRITE(0x2230, 1);
+                               break;
+                       default:
+                               break;
+                       }
                        NV_WRITE(NV40_PFIFO_RAMFC, 0x30002);
                        break;
                case NV_44:
-                       dev_priv->ramfc_offset = 0x20000;
-                       dev_priv->ramfc_size   = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
                        NV_WRITE(NV40_PFIFO_RAMFC, ((nouveau_mem_fb_amount(dev)-512*1024+dev_priv->ramfc_offset)>>16) |
                                        (2 << 16));
                        break;
                case NV_30:
                case NV_20:
-               case NV_10:
-                       dev_priv->ramfc_offset = 0x11400;
-                       dev_priv->ramfc_size   = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
-                       NV_WRITE(NV_PFIFO_RAMFC, (dev_priv->ramfc_offset>>8) |
+               case NV_17:
+                       NV_WRITE(NV03_PFIFO_RAMFC, (dev_priv->ramfc_offset>>8) |
                                        (1 << 16) /* 64 Bytes entry*/);
+                       /* XXX nvidia blob set bit 18, 21,23 for nv20 & nv30 */
                        break;
+               case NV_11:
+               case NV_10:
                case NV_04:
-               case NV_03:
-                       dev_priv->ramfc_offset = 0x11400;
-                       dev_priv->ramfc_size   = nouveau_fifo_number(dev) * nouveau_fifo_ctx_size(dev);
-                       NV_WRITE(NV_PFIFO_RAMFC, dev_priv->ramfc_offset>>8);
+                       NV_WRITE(NV03_PFIFO_RAMFC, dev_priv->ramfc_offset>>8);
                        break;
        }
-       DRM_DEBUG("RAMFC offset=0x%x, size=%d\n",
-                       dev_priv->ramfc_offset,
-                       dev_priv->ramfc_size);
-
-       if (nouveau_instmem_init(dev, dev_priv->ramfc_offset +
-                                     dev_priv->ramfc_size))
-               return 1;
 
        return 0;
 }
 
-int nouveau_fifo_init(drm_device_t *dev)
+int nouveau_fifo_init(struct drm_device *dev)
 {
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
        int ret;
 
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
+       NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) &
+                       ~NV_PMC_ENABLE_PFIFO);
+       NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) |
+                        NV_PMC_ENABLE_PFIFO);
+
+       /* Enable PFIFO error reporting */
+       NV_WRITE(NV03_PFIFO_INTR_0, 0xFFFFFFFF);
+       NV_WRITE(NV03_PFIFO_INTR_EN_0, 0xFFFFFFFF);
+
+       NV_WRITE(NV03_PFIFO_CACHES, 0x00000000);
 
        ret = nouveau_fifo_instmem_configure(dev);
        if (ret) {
@@ -163,574 +119,472 @@ int nouveau_fifo_init(drm_device_t *dev)
        DRM_DEBUG("Setting defaults for remaining PFIFO regs\n");
 
        /* All channels into PIO mode */
-       NV_WRITE(NV_PFIFO_MODE, 0x00000000);
+       NV_WRITE(NV04_PFIFO_MODE, 0x00000000);
 
-       NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000000);
        /* Channel 0 active, PIO mode */
-       NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH1, 0x00000000);
        /* PUT and GET to 0 */
-       NV_WRITE(NV_PFIFO_CACH1_DMAP, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_DMAP, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET, 0x00000000);
        /* No cmdbuf object */
-       NV_WRITE(NV_PFIFO_CACH1_DMAI, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH0_PSH0, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH0_PUL0, 0x00000000);
-       NV_WRITE(NV_PFIFO_SIZE, 0x0000FFFF);
-       NV_WRITE(NV_PFIFO_CACH1_HASH, 0x0000FFFF);
-       NV_WRITE(NV_PFIFO_CACH0_PUL1, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_DMAC, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_DMAS, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_ENG, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHE0_PUSH0, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHE0_PULL0, 0x00000000);
+       NV_WRITE(NV04_PFIFO_SIZE, 0x0000FFFF);
+       NV_WRITE(NV04_PFIFO_CACHE1_HASH, 0x0000FFFF);
+       NV_WRITE(NV04_PFIFO_CACHE0_PULL1, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_ENGINE, 0x00000000);
+
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_112_BYTES |
+                                     NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
+                                     NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_4 |
 #ifdef __BIG_ENDIAN
-       NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
-                                     NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                                     NV_PFIFO_CACH1_DMAF_MAX_REQS_4 |
-                                     NV_PFIFO_CACH1_BIG_ENDIAN);
-#else
-       NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
-                                     NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES | 
-                                     NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
+                                     NV_PFIFO_CACHE1_BIG_ENDIAN |
 #endif
-       NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001);
-
-       NV_WRITE(NV_PGRAPH_CTX_USER, 0x0);
-       NV_WRITE(NV_PFIFO_DELAY_0, 0xff /* retrycount*/ );
-       if (dev_priv->card_type >= NV_40)
-               NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x00002001);
-       else
-               NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10110000);
-
-       NV_WRITE(NV_PFIFO_DMA_TIMESLICE, 0x001fffff);
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
+                                     0x00000000);
+
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUSH, 0x00000001);
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL1, 0x00000001);
+
+       /* FIXME on NV04 */
+       if (dev_priv->card_type >= NV_10) {
+               NV_WRITE(NV10_PGRAPH_CTX_USER, 0x0);
+               NV_WRITE(NV04_PFIFO_DELAY_0, 0xff /* retrycount*/ );
+               if (dev_priv->card_type >= NV_40)
+                       NV_WRITE(NV10_PGRAPH_CTX_CONTROL, 0x00002001);
+               else
+                       NV_WRITE(NV10_PGRAPH_CTX_CONTROL, 0x10110000);
+       } else {
+               NV_WRITE(NV04_PGRAPH_CTX_USER, 0x0);
+               NV_WRITE(NV04_PFIFO_DELAY_0, 0xff /* retrycount*/ );
+               NV_WRITE(NV04_PGRAPH_CTX_CONTROL, 0x10110000);
+       }
 
+       NV_WRITE(NV04_PFIFO_DMA_TIMESLICE, 0x001fffff);
+       NV_WRITE(NV03_PFIFO_CACHES, 0x00000001);
        return 0;
 }
 
 static int
-nouveau_fifo_cmdbuf_alloc(struct drm_device *dev, int channel)
+nouveau_fifo_pushbuf_ctxdma_init(struct nouveau_channel *chan)
 {
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       struct nouveau_config *config = &dev_priv->config;
-       struct mem_block *cb;
-       struct nouveau_object *cb_dma = NULL;
-       int cb_min_size = max(NV03_FIFO_SIZE,PAGE_SIZE);
-
-       /* Defaults for unconfigured values */
-       if (!config->cmdbuf.location)
-               config->cmdbuf.location = NOUVEAU_MEM_FB;
-       if (!config->cmdbuf.size || config->cmdbuf.size < cb_min_size)
-               config->cmdbuf.size = cb_min_size;
-
-       cb = nouveau_mem_alloc(dev, 0, config->cmdbuf.size,
-                       config->cmdbuf.location | NOUVEAU_MEM_MAPPED,
-                       (DRMFILE)-2);
-       if (!cb) {
-               DRM_ERROR("Couldn't allocate DMA command buffer.\n");
-               return DRM_ERR(ENOMEM);
-       }
+       struct drm_device *dev = chan->dev;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct mem_block *pb = chan->pushbuf_mem;
+       struct nouveau_gpuobj *pushbuf = NULL;
+       int ret;
 
-       if (cb->flags & NOUVEAU_MEM_AGP) {
-               cb_dma = nouveau_dma_object_create(dev,
-                               cb->start, cb->size,
-                               NV_DMA_ACCESS_RO, NV_DMA_TARGET_AGP);
+       if (pb->flags & NOUVEAU_MEM_AGP) {
+               ret = nouveau_gpuobj_gart_dma_new(chan, pb->start, pb->size,
+                                                 NV_DMA_ACCESS_RO,
+                                                 &pushbuf,
+                                                 &chan->pushbuf_base);
+       } else
+       if (pb->flags & NOUVEAU_MEM_PCI) {
+               ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
+                                            pb->start, pb->size,
+                                            NV_DMA_ACCESS_RO,
+                                            NV_DMA_TARGET_PCI_NONLINEAR,
+                                            &pushbuf);
+               chan->pushbuf_base = 0;
        } else if (dev_priv->card_type != NV_04) {
-               cb_dma = nouveau_dma_object_create(dev,
-                               cb->start - drm_get_resource_start(dev, 1),
-                               cb->size,
-                               NV_DMA_ACCESS_RO, NV_DMA_TARGET_VIDMEM);
+               ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
+                                            pb->start, pb->size,
+                                            NV_DMA_ACCESS_RO,
+                                            NV_DMA_TARGET_VIDMEM, &pushbuf);
+               chan->pushbuf_base = 0;
        } else {
                /* NV04 cmdbuf hack, from original ddx.. not sure of it's
                 * exact reason for existing :)  PCI access to cmdbuf in
                 * VRAM.
                 */
-               cb_dma = nouveau_dma_object_create(dev,
-                               cb->start, cb->size,
-                               NV_DMA_ACCESS_RO, NV_DMA_TARGET_PCI);
+               ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
+                                            pb->start +
+                                              drm_get_resource_start(dev, 1),
+                                            pb->size, NV_DMA_ACCESS_RO,
+                                            NV_DMA_TARGET_PCI, &pushbuf);
+               chan->pushbuf_base = 0;
        }
 
-       if (!cb_dma) {
-               nouveau_mem_free(dev, cb);
-               DRM_ERROR("Failed to alloc DMA object for command buffer\n");
-               return DRM_ERR(ENOMEM);
+       if ((ret = nouveau_gpuobj_ref_add(dev, chan, 0, pushbuf,
+                                         &chan->pushbuf))) {
+               DRM_ERROR("Error referencing push buffer ctxdma: %d\n", ret);
+               if (pushbuf != dev_priv->gart_info.sg_ctxdma)
+                       nouveau_gpuobj_del(dev, &pushbuf);
+               return ret;
        }
 
-       dev_priv->fifos[channel].cmdbuf_mem = cb;
-       dev_priv->fifos[channel].cmdbuf_obj = cb_dma;
        return 0;
 }
 
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV04_RAMFC_##offset, (val))
-static void nouveau_nv04_context_init(drm_device_t *dev,
-                drm_nouveau_fifo_alloc_t *init)
-{
-        drm_nouveau_private_t *dev_priv = dev->dev_private;
-       struct nouveau_object *cb_obj;
-       uint32_t fifoctx, ctx_size = 32;
-       int i;
-
-       cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
-
-       fifoctx=NV_RAMIN+dev_priv->ramfc_offset+init->channel*ctx_size;
-       
-        // clear the fifo context
-        for(i=0;i<ctx_size/4;i++)
-                NV_WRITE(fifoctx+4*i,0x0);
-
-        RAMFC_WR(DMA_PUT       , init->put_base);
-       RAMFC_WR(DMA_GET        , init->put_base);
-       RAMFC_WR(DMA_INSTANCE   , nouveau_chip_instance_get(dev, cb_obj->instance));
-#ifdef __BIG_ENDIAN
-        RAMFC_WR(DMA_FETCH,    NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
-                                NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                                NV_PFIFO_CACH1_DMAF_MAX_REQS_4     |
-                                NV_PFIFO_CACH1_BIG_ENDIAN);
-#else
-       RAMFC_WR(DMA_FETCH,     NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
-                                NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                                NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
-#endif
-}
-#undef RAMFC_WR
-
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV10_RAMFC_##offset, (val))
-static void nouveau_nv10_context_init(drm_device_t *dev,
-                drm_nouveau_fifo_alloc_t *init)
+static struct mem_block *
+nouveau_fifo_user_pushbuf_alloc(struct drm_device *dev)
 {
-        drm_nouveau_private_t *dev_priv = dev->dev_private;
-        struct nouveau_object *cb_obj;
-        uint32_t fifoctx;
-        int i;
-        cb_obj  = dev_priv->fifos[init->channel].cmdbuf_obj;
-        fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel*64;
-
-        for (i=0;i<64;i+=4)
-                NV_WRITE(fifoctx + i, 0);
-
-        /* Fill entries that are seen filled in dumps of nvidia driver just
-         * after channel's is put into DMA mode
-         */
-
-        RAMFC_WR(DMA_PUT       , init->put_base);
-        RAMFC_WR(DMA_GET       , init->put_base);
-        RAMFC_WR(DMA_INSTANCE  , nouveau_chip_instance_get(dev,
-                                cb_obj->instance));
-#ifdef __BIG_ENDIAN
-        RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES | 
-                        NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                        NV_PFIFO_CACH1_DMAF_MAX_REQS_4     |
-                        NV_PFIFO_CACH1_BIG_ENDIAN);
-#else
-
-        RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES | 
-                        NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                        NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
-#endif
-}
-
-static void nouveau_nv30_context_init(drm_device_t *dev,
-                                      drm_nouveau_fifo_alloc_t *init)
-{
-        drm_nouveau_private_t *dev_priv = dev->dev_private;
-        struct nouveau_fifo *chan = &dev_priv->fifos[init->channel];
-       struct nouveau_object *cb_obj;
-       uint32_t fifoctx, grctx_inst, cb_inst, ctx_size = 64;
-       int i;
-
-       cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
-        cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
-        grctx_inst = nouveau_chip_instance_get(dev, chan->ramin_grctx);
-        fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel * ctx_size;
-        
-        for (i = 0; i < ctx_size; i += 4)
-                NV_WRITE(fifoctx + i, 0);
-
-        RAMFC_WR(DMA_PUT,       init->put_base);
-        RAMFC_WR(DMA_GET,       init->put_base);
-        RAMFC_WR(REF_CNT,       NV_READ(NV_PFIFO_CACH1_REF_CNT));
-        RAMFC_WR(DMA_INSTANCE,  cb_inst);
-        RAMFC_WR(DMA_STATE,     NV_READ(NV_PFIFO_CACH1_DMAS));
-        RAMFC_WR(DMA_FETCH,     NV_PFIFO_CACH1_DMAF_TRIG_128_BYTES | 
-                                NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                                NV_PFIFO_CACH1_DMAF_MAX_REQS_8 |
-#ifdef __BIG_ENDIAN
-                                NV_PFIFO_CACH1_BIG_ENDIAN |
-#else
-                                0x00000000);
-#endif
-        
-        RAMFC_WR(ENGINE,                NV_READ(NV_PFIFO_CACH1_ENG));
-        RAMFC_WR(PULL1_ENGINE,          NV_READ(NV_PFIFO_CACH1_PUL1)); 
-        RAMFC_WR(ACQUIRE_VALUE,         NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
-        RAMFC_WR(ACQUIRE_TIMESTAMP,     NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
-        RAMFC_WR(ACQUIRE_TIMEOUT,       NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
-        RAMFC_WR(SEMAPHORE,             NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
-        NV_WRITE(NV_PGRAPH_CHANNEL_CTX_SIZE, grctx_inst); /* Misnomer.  Really a ptr to the grctx */
-
-        /*
-         * TODO: We need to put this somewhere...
-         */
-        /* INSTANCE_WR(dev_priv->ctx_table, init->channel, grctx_inst); */
-        RAMFC_WR(DMA_SUBROUTINE,        init->put_base);
-}
-
-static void nouveau_nv10_context_save(drm_device_t *dev)
-{
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       uint32_t fifoctx;
-       int channel;
-
-       channel = NV_READ(NV_PFIFO_CACH1_PSH1) & (nouveau_fifo_number(dev)-1);
-       fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*64;
-
-       RAMFC_WR(DMA_PUT          , NV_READ(NV_PFIFO_CACH1_DMAP));
-       RAMFC_WR(DMA_GET          , NV_READ(NV_PFIFO_CACH1_DMAG));
-       RAMFC_WR(REF_CNT          , NV_READ(NV_PFIFO_CACH1_REF_CNT));
-       RAMFC_WR(DMA_INSTANCE     , NV_READ(NV_PFIFO_CACH1_DMAI));
-       RAMFC_WR(DMA_STATE        , NV_READ(NV_PFIFO_CACH1_DMAS));
-       RAMFC_WR(DMA_FETCH        , NV_READ(NV_PFIFO_CACH1_DMAF));
-       RAMFC_WR(ENGINE           , NV_READ(NV_PFIFO_CACH1_ENG));
-       RAMFC_WR(PULL1_ENGINE     , NV_READ(NV_PFIFO_CACH1_PUL1));
-       RAMFC_WR(ACQUIRE_VALUE    , NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
-       RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
-       RAMFC_WR(ACQUIRE_TIMEOUT  , NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
-       RAMFC_WR(SEMAPHORE        , NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
-       RAMFC_WR(DMA_SUBROUTINE   , NV_READ(NV_PFIFO_CACH1_DMASR));
-}
-#undef RAMFC_WR
-
-#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV40_RAMFC_##offset, (val))
-static void nouveau_nv40_context_init(drm_device_t *dev,
-                                     drm_nouveau_fifo_alloc_t *init)
-{
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       struct nouveau_fifo *chan = &dev_priv->fifos[init->channel];
-       uint32_t fifoctx, cb_inst, grctx_inst;
-       int i;
-
-       cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
-       grctx_inst = nouveau_chip_instance_get(dev, chan->ramin_grctx);
-       fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel*128;
-       for (i=0;i<128;i+=4)
-               NV_WRITE(fifoctx + i, 0);
-
-       /* Fill entries that are seen filled in dumps of nvidia driver just
-        * after channel's is put into DMA mode
-        */
-       RAMFC_WR(DMA_PUT       , init->put_base);
-       RAMFC_WR(DMA_GET       , init->put_base);
-       RAMFC_WR(DMA_INSTANCE  , cb_inst);
-       RAMFC_WR(DMA_FETCH     , NV_PFIFO_CACH1_DMAF_TRIG_128_BYTES |
-                                NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
-                                NV_PFIFO_CACH1_DMAF_MAX_REQS_8 |
-#ifdef __BIG_ENDIAN
-                                NV_PFIFO_CACH1_BIG_ENDIAN |
-#endif
-                                0x30000000 /* no idea.. */);
-       RAMFC_WR(DMA_SUBROUTINE, init->put_base);
-       RAMFC_WR(GRCTX_INSTANCE, grctx_inst);
-       RAMFC_WR(DMA_TIMESLICE , 0x0001FFFF);
-}
-
-static void nouveau_nv40_context_save(drm_device_t *dev)
-{
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       uint32_t fifoctx;
-       int channel;
-
-       channel = NV_READ(NV_PFIFO_CACH1_PSH1) & (nouveau_fifo_number(dev)-1);
-       fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
-
-       RAMFC_WR(DMA_PUT          , NV_READ(NV_PFIFO_CACH1_DMAP));
-       RAMFC_WR(DMA_GET          , NV_READ(NV_PFIFO_CACH1_DMAG));
-       RAMFC_WR(REF_CNT          , NV_READ(NV_PFIFO_CACH1_REF_CNT));
-       RAMFC_WR(DMA_INSTANCE     , NV_READ(NV_PFIFO_CACH1_DMAI));
-       RAMFC_WR(DMA_DCOUNT       , NV_READ(NV_PFIFO_CACH1_DMA_DCOUNT));
-       RAMFC_WR(DMA_STATE        , NV_READ(NV_PFIFO_CACH1_DMAS));
-       RAMFC_WR(DMA_FETCH        , NV_READ(NV_PFIFO_CACH1_DMAF));
-       RAMFC_WR(ENGINE           , NV_READ(NV_PFIFO_CACH1_ENG));
-       RAMFC_WR(PULL1_ENGINE     , NV_READ(NV_PFIFO_CACH1_PUL1));
-       RAMFC_WR(ACQUIRE_VALUE    , NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
-       RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
-       RAMFC_WR(ACQUIRE_TIMEOUT  , NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
-       RAMFC_WR(SEMAPHORE        , NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
-       RAMFC_WR(DMA_SUBROUTINE   , NV_READ(NV_PFIFO_CACH1_DMAG));
-       RAMFC_WR(GRCTX_INSTANCE   , NV_READ(NV40_PFIFO_GRCTX_INSTANCE));
-       RAMFC_WR(DMA_TIMESLICE    , NV_READ(NV_PFIFO_DMA_TIMESLICE) & 0x1FFFF);
-       RAMFC_WR(UNK_40           , NV_READ(NV40_PFIFO_UNK32E4));
-}
-#undef RAMFC_WR
-
-/* This function should load values from RAMFC into PFIFO, but for now
- * it just clobbers PFIFO with what nouveau_fifo_alloc used to setup
- * unconditionally.
- */
-static void
-nouveau_fifo_context_restore(drm_device_t *dev, int channel)
-{
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       struct nouveau_fifo *chan = &dev_priv->fifos[channel];
-       uint32_t cb_inst;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_config *config = &dev_priv->config;
+       struct mem_block *pb;
+       int pb_min_size = max(NV03_FIFO_SIZE,PAGE_SIZE);
 
-       cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
+       /* Defaults for unconfigured values */
+       if (!config->cmdbuf.location)
+               config->cmdbuf.location = NOUVEAU_MEM_FB;
+       if (!config->cmdbuf.size || config->cmdbuf.size < pb_min_size)
+               config->cmdbuf.size = pb_min_size;
 
-       // FIXME check if we need to refill the time quota with something like NV_WRITE(0x204C, 0x0003FFFF);
+       pb = nouveau_mem_alloc(dev, 0, config->cmdbuf.size,
+                              config->cmdbuf.location | NOUVEAU_MEM_MAPPED,
+                              (struct drm_file *)-2);
+       if (!pb)
+               DRM_ERROR("Couldn't allocate DMA push buffer.\n");
 
-       if (dev_priv->card_type >= NV_40)
-               NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00010000|channel);
-       else
-               NV_WRITE(NV_PFIFO_CACH1_PSH1, 0x00000100|channel);
-
-       NV_WRITE(NV_PFIFO_CACH1_DMAP, 0 /*RAMFC_DMA_PUT*/);
-       NV_WRITE(NV_PFIFO_CACH1_DMAG, 0 /*RAMFC_DMA_GET*/);
-       NV_WRITE(NV_PFIFO_CACH1_DMAI, cb_inst);
-       NV_WRITE(NV_PFIFO_SIZE , 0x0000FFFF);
-       NV_WRITE(NV_PFIFO_CACH1_HASH, 0x0000FFFF);
-
-       NV_WRITE(NV_PFIFO_CACH0_PUL1, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_DMAC, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_DMAS, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_ENG, 0x00000000);
-#ifdef __BIG_ENDIAN
-               NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN);
-#else
-               NV_WRITE(NV_PFIFO_CACH1_DMAF, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
-#endif
+       return pb;
 }
 
 /* allocates and initializes a fifo for user space consumption */
-static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init, DRMFILE filp)
+int
+nouveau_fifo_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
+                  struct drm_file *file_priv, struct mem_block *pushbuf,
+                  uint32_t vram_handle, uint32_t tt_handle)
 {
-       int i;
        int ret;
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       struct nouveau_object *cb_obj;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_engine *engine = &dev_priv->Engine;
+       struct nouveau_channel *chan;
+       int channel;
 
        /*
         * Alright, here is the full story
-        * Nvidia cards have multiple hw fifo contexts (praise them for that, 
+        * Nvidia cards have multiple hw fifo contexts (praise them for that,
         * no complicated crash-prone context switches)
-        * We allocate a new context for each app and let it write to it directly 
+        * We allocate a new context for each app and let it write to it directly
         * (woo, full userspace command submission !)
         * When there are no more contexts, you lost
         */
-       for(i=0;i<nouveau_fifo_number(dev);i++)
-               if (dev_priv->fifos[i].used==0)
+       for (channel = 0; channel < engine->fifo.channels; channel++) {
+               if (dev_priv->fifos[channel] == NULL)
                        break;
+       }
 
-       DRM_INFO("Allocating FIFO number %d\n", i);
        /* no more fifos. you lost. */
-       if (i==nouveau_fifo_number(dev))
-               return DRM_ERR(EINVAL);
+       if (channel == engine->fifo.channels)
+               return -EINVAL;
 
-       /* allocate a command buffer, and create a dma object for the gpu */
-       ret = nouveau_fifo_cmdbuf_alloc(dev, i);
-       if (ret) return ret;
-       cb_obj = dev_priv->fifos[i].cmdbuf_obj;
+       dev_priv->fifos[channel] = drm_calloc(1, sizeof(struct nouveau_channel),
+                                             DRM_MEM_DRIVER);
+       if (!dev_priv->fifos[channel])
+               return -ENOMEM;
+       dev_priv->fifo_alloc_count++;
+       chan = dev_priv->fifos[channel];
+       chan->dev = dev;
+       chan->id = channel;
+       chan->file_priv = file_priv;
+       chan->pushbuf_mem = pushbuf;
+
+       DRM_INFO("Allocating FIFO number %d\n", channel);
+
+       /* Locate channel's user control regs */
+       if (dev_priv->card_type < NV_40) {
+               chan->user = NV03_USER(channel);
+               chan->user_size = NV03_USER_SIZE;
+               chan->put = NV03_USER_DMA_PUT(channel);
+               chan->get = NV03_USER_DMA_GET(channel);
+               chan->ref_cnt = NV03_USER_REF_CNT(channel);
+       } else
+       if (dev_priv->card_type < NV_50) {
+               chan->user = NV40_USER(channel);
+               chan->user_size = NV40_USER_SIZE;
+               chan->put = NV40_USER_DMA_PUT(channel);
+               chan->get = NV40_USER_DMA_GET(channel);
+               chan->ref_cnt = NV40_USER_REF_CNT(channel);
+       } else {
+               chan->user = NV50_USER(channel);
+               chan->user_size = NV50_USER_SIZE;
+               chan->put = NV50_USER_DMA_PUT(channel);
+               chan->get = NV50_USER_DMA_GET(channel);
+               chan->ref_cnt = NV50_USER_REF_CNT(channel);
+       }
 
-       /* that fifo is used */
-       dev_priv->fifos[i].used=1;
-       dev_priv->fifos[i].filp=filp;
+       /* Allocate space for per-channel fixed notifier memory */
+       ret = nouveau_notifier_init_channel(chan);
+       if (ret) {
+               nouveau_fifo_free(chan);
+               return ret;
+       }
 
-       init->channel  = i;
-       init->put_base = 0;
-       dev_priv->cur_fifo = init->channel;
-       dev_priv->fifos[i].pgraph_ctx_user = i << 24;
+       /* Setup channel's default objects */
+       ret = nouveau_gpuobj_channel_init(chan, vram_handle, tt_handle);
+       if (ret) {
+               nouveau_fifo_free(chan);
+               return ret;
+       }
+
+       /* Create a dma object for the push buffer */
+       ret = nouveau_fifo_pushbuf_ctxdma_init(chan);
+       if (ret) {
+               nouveau_fifo_free(chan);
+               return ret;
+       }
 
        nouveau_wait_for_idle(dev);
 
        /* disable the fifo caches */
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_DMAPSH, NV_READ(NV_PFIFO_CACH1_DMAPSH)&(~0x1));
-       NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000000);
-       NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHES, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUSH, NV_READ(NV04_PFIFO_CACHE1_DMA_PUSH)&(~0x1));
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000000);
 
-       /* Construct inital RAMFC for new channel */
-       if (dev_priv->card_type < NV_10) {
-               nouveau_nv04_context_init(dev, init);
-        } else if (dev_priv->card_type < NV_30) {
-                nouveau_nv10_context_init(dev, init);
-        } else if (dev_priv->card_type < NV_40) {
-                ret = nv30_graph_context_create(dev, init->channel);
-                if (ret) {
-                        nouveau_fifo_free(dev, init->channel);
-                        return ret;
-                }
-               nouveau_nv30_context_init(dev, init);
-       } else {
-               ret = nv40_graph_context_create(dev, init->channel);
-               if (ret) {
-                       nouveau_fifo_free(dev, init->channel);
-                       return ret;
-               }
-               nouveau_nv40_context_init(dev, init);
+       /* Create a graphics context for new channel */
+       ret = engine->graph.create_context(chan);
+       if (ret) {
+               nouveau_fifo_free(chan);
+               return ret;
        }
 
-       /* enable the fifo dma operation */
-       NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)|(1<<init->channel));
+       /* Construct inital RAMFC for new channel */
+       ret = engine->fifo.create_context(chan);
+       if (ret) {
+               nouveau_fifo_free(chan);
+               return ret;
+       }
 
-       /* setup channel's default get/put values */
-       NV_WRITE(NV03_FIFO_REGS_DMAPUT(init->channel), init->put_base);
-       NV_WRITE(NV03_FIFO_REGS_DMAGET(init->channel), init->put_base);
+       /* setup channel's default get/put values
+        * XXX: quite possibly extremely pointless..
+        */
+       NV_WRITE(chan->get, chan->pushbuf_base);
+       NV_WRITE(chan->put, chan->pushbuf_base);
 
        /* If this is the first channel, setup PFIFO ourselves.  For any
         * other case, the GPU will handle this when it switches contexts.
         */
-       if (dev_priv->fifo_alloc_count == 0) {
-               nouveau_fifo_context_restore(dev, init->channel);
-               if (dev_priv->card_type >= NV_30) {
-                       struct nouveau_fifo *chan;
-                       uint32_t inst;
-
-                       chan = &dev_priv->fifos[init->channel];
-                       inst = nouveau_chip_instance_get(dev,
-                                                        chan->ramin_grctx);
-
-                       /* see comments in nv40_graph_context_restore() */
-                       NV_WRITE(NV_PGRAPH_CHANNEL_CTX_SIZE, inst);
-                        if (dev_priv->card_type >= NV_40) {
-                                NV_WRITE(0x40032C, inst | 0x01000000);
-                                NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE, inst);
-                        }
+       if (dev_priv->fifo_alloc_count == 1) {
+               ret = engine->fifo.load_context(chan);
+               if (ret) {
+                       nouveau_fifo_free(chan);
+                       return ret;
+               }
+
+               ret = engine->graph.load_context(chan);
+               if (ret) {
+                       nouveau_fifo_free(chan);
+                       return ret;
                }
        }
 
-       NV_WRITE(NV_PFIFO_CACH1_DMAPSH, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PSH0, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001);
-       NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUSH,
+                NV_READ(NV04_PFIFO_CACHE1_DMA_PUSH) | 1);
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL1, 0x00000001);
 
        /* reenable the fifo caches */
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
-
-       /* make the fifo available to user space */
-       /* first, the fifo control regs */
-       init->ctrl      = dev_priv->mmio->offset + NV03_FIFO_REGS(init->channel);
-       init->ctrl_size = NV03_FIFO_REGS_SIZE;
-       ret = drm_addmap(dev, init->ctrl, init->ctrl_size, _DRM_REGISTERS,
-                        0, &dev_priv->fifos[init->channel].regs);
-       if (ret != 0)
-               return ret;
-
-       /* pass back FIFO map info to the caller */
-       init->cmdbuf       = dev_priv->fifos[init->channel].cmdbuf_mem->start;
-       init->cmdbuf_size  = dev_priv->fifos[init->channel].cmdbuf_mem->size;
+       NV_WRITE(NV03_PFIFO_CACHES, 1);
 
-       /* FIFO has no objects yet */
-       dev_priv->fifos[init->channel].objs = NULL;
-       dev_priv->fifo_alloc_count++;
-
-       DRM_INFO("%s: initialised FIFO %d\n", __func__, init->channel);
+       DRM_INFO("%s: initialised FIFO %d\n", __func__, channel);
+       *chan_ret = chan;
        return 0;
 }
 
 /* stops a fifo */
-void nouveau_fifo_free(drm_device_t* dev,int n)
+void nouveau_fifo_free(struct nouveau_channel *chan)
 {
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-       int i;
-       int ctx_size = nouveau_fifo_ctx_size(dev);
+       struct drm_device *dev = chan->dev;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_engine *engine = &dev_priv->Engine;
+       uint64_t t_start;
 
-       dev_priv->fifos[n].used=0;
-       DRM_INFO("%s: freeing fifo %d\n", __func__, n);
+       DRM_INFO("%s: freeing fifo %d\n", __func__, chan->id);
+
+       /* Disable channel switching, if this channel isn't currenly
+        * active re-enable it if there's still pending commands.
+        * We really should do a manual context switch here, but I'm
+        * not sure I trust our ability to do this reliably yet..
+        */
+       NV_WRITE(NV03_PFIFO_CACHES, 0);
+       if (engine->fifo.channel_id(dev) != chan->id &&
+           NV_READ(chan->get) != NV_READ(chan->put)) {
+               NV_WRITE(NV03_PFIFO_CACHES, 1);
+       }
+
+       /* Give the channel a chance to idle, wait 2s (hopefully) */
+       t_start = engine->timer.read(dev);
+       while (NV_READ(chan->get) != NV_READ(chan->put) ||
+              NV_READ(NV03_PFIFO_CACHE1_GET) !=
+              NV_READ(NV03_PFIFO_CACHE1_PUT)) {
+               if (engine->timer.read(dev) - t_start > 2000000000ULL) {
+                       DRM_ERROR("Failed to idle channel %d before destroy."
+                                 "Prepare for strangeness..\n", chan->id);
+                       break;
+               }
+       }
+
+       /*XXX: Maybe should wait for PGRAPH to finish with the stuff it fetched
+        *     from CACHE1 too?
+        */
 
        /* disable the fifo caches */
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
+       NV_WRITE(NV03_PFIFO_CACHES, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUSH, NV_READ(NV04_PFIFO_CACHE1_DMA_PUSH)&(~0x1));
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000000);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000000);
+
+       /* stop the fifo, otherwise it could be running and
+        * it will crash when removing gpu objects
+        *XXX: from real-world evidence, absolutely useless..
+        */
+       NV_WRITE(chan->get, chan->pushbuf_base);
+       NV_WRITE(chan->put, chan->pushbuf_base);
 
-       NV_WRITE(NV_PFIFO_MODE,NV_READ(NV_PFIFO_MODE)&~(1<<n));
        // FIXME XXX needs more code
-       
-       /* Clean RAMFC */
-       for (i=0;i<ctx_size;i+=4) {
-               DRM_DEBUG("RAMFC +%02x: 0x%08x\n", i, NV_READ(NV_RAMIN +
-                                       dev_priv->ramfc_offset + n*ctx_size + i));
-               NV_WRITE(NV_RAMIN + dev_priv->ramfc_offset + n*ctx_size + i, 0);
-       }
 
-       if (dev_priv->card_type >= NV_40)
-               nouveau_instmem_free(dev, dev_priv->fifos[n].ramin_grctx);
+       engine->fifo.destroy_context(chan);
+
+       /* Cleanup PGRAPH state */
+       engine->graph.destroy_context(chan);
 
        /* reenable the fifo caches */
-       NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUSH,
+                NV_READ(NV04_PFIFO_CACHE1_DMA_PUSH) | 1);
+       NV_WRITE(NV03_PFIFO_CACHE1_PUSH0, 0x00000001);
+       NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 0x00000001);
+       NV_WRITE(NV03_PFIFO_CACHES, 0x00000001);
+
+       /* Deallocate push buffer */
+       nouveau_gpuobj_ref_del(dev, &chan->pushbuf);
+       if (chan->pushbuf_mem) {
+               nouveau_mem_free(dev, chan->pushbuf_mem);
+               chan->pushbuf_mem = NULL;
+       }
+
+       /* Destroy objects belonging to the channel */
+       nouveau_gpuobj_channel_takedown(chan);
 
-       /* Deallocate command buffer, and dma object */
-       nouveau_mem_free(dev, dev_priv->fifos[n].cmdbuf_mem);
+       nouveau_notifier_takedown_channel(chan);
 
+       dev_priv->fifos[chan->id] = NULL;
        dev_priv->fifo_alloc_count--;
+       drm_free(chan, sizeof(*chan), DRM_MEM_DRIVER);
 }
 
-/* cleanups all the fifos from filp */
-void nouveau_fifo_cleanup(drm_device_t* dev, DRMFILE filp)
+/* cleanups all the fifos from file_priv */
+void nouveau_fifo_cleanup(struct drm_device *dev, struct drm_file *file_priv)
 {
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_engine *engine = &dev_priv->Engine;
        int i;
-       drm_nouveau_private_t *dev_priv = dev->dev_private;
-
-       DRM_DEBUG("clearing FIFO enables from filp\n");
-       for(i=0;i<nouveau_fifo_number(dev);i++)
-               if (dev_priv->fifos[i].used && dev_priv->fifos[i].filp==filp)
-                       nouveau_fifo_free(dev,i);
-
-       /* check we still point at an active channel */
-       if (dev_priv->fifos[dev_priv->cur_fifo].used == 0) {    
-               DRM_DEBUG("%s: cur_fifo is no longer owned.\n", __func__);
-               for (i=0;i<nouveau_fifo_number(dev);i++)
-                       if (dev_priv->fifos[i].used) break;
-               if (i==nouveau_fifo_number(dev))
-                       i=0;
-               DRM_DEBUG("%s: new cur_fifo is %d\n", __func__, i);
-               dev_priv->cur_fifo = i;
-       }
 
-/*     if (dev_priv->cmdbuf_alloc)
-               nouveau_fifo_init(dev);*/
+       DRM_DEBUG("clearing FIFO enables from file_priv\n");
+       for(i = 0; i < engine->fifo.channels; i++) {
+               struct nouveau_channel *chan = dev_priv->fifos[i];
+
+               if (chan && chan->file_priv == file_priv)
+                       nouveau_fifo_free(chan);
+       }
 }
 
-int nouveau_fifo_id_get(drm_device_t* dev, DRMFILE filp)
+int
+nouveau_fifo_owner(struct drm_device *dev, struct drm_file *file_priv,
+                  int channel)
 {
-       drm_nouveau_private_t *dev_priv=dev->dev_private;
-       int i;
-
-       for(i=0;i<nouveau_fifo_number(dev);i++)
-               if (dev_priv->fifos[i].used && dev_priv->fifos[i].filp == filp)
-                       return i;
-       return -1;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_engine *engine = &dev_priv->Engine;
+
+       if (channel >= engine->fifo.channels)
+               return 0;
+       if (dev_priv->fifos[channel] == NULL)
+               return 0;
+       return (dev_priv->fifos[channel]->file_priv == file_priv);
 }
 
 /***********************************
  * ioctls wrapping the functions
  ***********************************/
 
-static int nouveau_ioctl_fifo_alloc(DRM_IOCTL_ARGS)
+static int nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
+                                   struct drm_file *file_priv)
 {
-       DRM_DEVICE;
-       drm_nouveau_fifo_alloc_t init;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct drm_nouveau_channel_alloc *init = data;
+       struct drm_map_list *entry;
+       struct nouveau_channel *chan;
+       struct mem_block *pushbuf;
        int res;
-       DRM_COPY_FROM_USER_IOCTL(init, (drm_nouveau_fifo_alloc_t __user *) data, sizeof(init));
 
-       res=nouveau_fifo_alloc(dev,&init,filp);
-       if (!res)
-               DRM_COPY_TO_USER_IOCTL((drm_nouveau_fifo_alloc_t __user *)data, init, sizeof(init));
+       NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
+
+       if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
+               return -EINVAL;
+
+       pushbuf = nouveau_fifo_user_pushbuf_alloc(dev);
+       if (!pushbuf)
+               return -ENOMEM;
+
+       res = nouveau_fifo_alloc(dev, &chan, file_priv, pushbuf,
+                                init->fb_ctxdma_handle,
+                                init->tt_ctxdma_handle);
+       if (res)
+               return res;
+       init->channel  = chan->id;
+       init->put_base = chan->pushbuf_base;
+
+       /* make the fifo available to user space */
+       /* first, the fifo control regs */
+       init->ctrl = dev_priv->mmio->offset + chan->user;
+       init->ctrl_size = chan->user_size;
+       res = drm_addmap(dev, init->ctrl, init->ctrl_size, _DRM_REGISTERS,
+                        0, &chan->regs);
+       if (res != 0)
+               return res;
+
+       entry = drm_find_matching_map(dev, chan->regs);
+       if (!entry)
+               return -EINVAL;
+       init->ctrl = entry->user_token;
+
+       /* pass back FIFO map info to the caller */
+       init->cmdbuf      = chan->pushbuf_mem->map_handle;
+       init->cmdbuf_size = chan->pushbuf_mem->size;
+
+       /* and the notifier block */
+       init->notifier      = chan->notifier_block->map_handle;
+       init->notifier_size = chan->notifier_block->size;
+
+       return 0;
+}
+
+static int nouveau_ioctl_fifo_free(struct drm_device *dev, void *data,
+                                  struct drm_file *file_priv)
+{
+       struct drm_nouveau_channel_free *cfree = data;
+       struct nouveau_channel *chan;
+
+       NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
+       NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(cfree->channel, file_priv, chan);
 
-       return res;
+       nouveau_fifo_free(chan);
+       return 0;
 }
 
 /***********************************
  * finally, the ioctl table
  ***********************************/
 
-drm_ioctl_desc_t nouveau_ioctls[] = {
-       [DRM_IOCTL_NR(DRM_NOUVEAU_FIFO_ALLOC)] = {nouveau_ioctl_fifo_alloc, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_OBJECT_INIT)] = {nouveau_ioctl_object_init, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_DMA_OBJECT_INIT)] = {nouveau_ioctl_dma_object_init, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_MEM_ALLOC)] = {nouveau_ioctl_mem_alloc, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_MEM_FREE)] = {nouveau_ioctl_mem_free, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_GETPARAM)] = {nouveau_ioctl_getparam, DRM_AUTH},
-       [DRM_IOCTL_NR(DRM_NOUVEAU_SETPARAM)] = {nouveau_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},     
+struct drm_ioctl_desc nouveau_ioctls[] = {
+       DRM_IOCTL_DEF(DRM_NOUVEAU_CARD_INIT, nouveau_ioctl_card_init, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_GETPARAM, nouveau_ioctl_getparam, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_SETPARAM, nouveau_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_CHANNEL_ALLOC, nouveau_ioctl_fifo_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_CHANNEL_FREE, nouveau_ioctl_fifo_free, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_GROBJ_ALLOC, nouveau_ioctl_grobj_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_ioctl_notifier_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_GPUOBJ_FREE, nouveau_ioctl_gpuobj_free, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_MEM_ALLOC, nouveau_ioctl_mem_alloc, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_NOUVEAU_MEM_FREE, nouveau_ioctl_mem_free, DRM_AUTH),
 };
 
 int nouveau_max_ioctl = DRM_ARRAY_SIZE(nouveau_ioctls);
-
-