drm/nouveau/ramht: remove dependence on namedb
authorBen Skeggs <bskeggs@redhat.com>
Thu, 20 Aug 2015 04:54:17 +0000 (14:54 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Fri, 28 Aug 2015 02:40:37 +0000 (12:40 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h
drivers/gpu/drm/nouveau/nvkm/core/ramht.c
drivers/gpu/drm/nouveau/nvkm/engine/disp/gf110.c
drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
drivers/gpu/drm/nouveau/nvkm/engine/fifo/g84.c
drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c
drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv17.c
drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c
drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c
drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c
drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c

index cc132eaa10cca05ba96e015ee3beeba32d8459ab..5ee6298991e2143f4ca6fd323295f6bdb1c9b97e 100644 (file)
@@ -2,19 +2,27 @@
 #define __NVKM_RAMHT_H__
 #include <core/gpuobj.h>
 
+struct nvkm_ramht_data {
+       struct nvkm_gpuobj *inst;
+       int chid;
+       u32 handle;
+};
+
 struct nvkm_ramht {
-       struct nvkm_gpuobj gpuobj;
+       struct nvkm_device *device;
+       struct nvkm_gpuobj *parent;
+       struct nvkm_gpuobj *gpuobj;
+       int size;
        int bits;
+       struct nvkm_ramht_data data[];
 };
 
-int  nvkm_ramht_insert(struct nvkm_ramht *, int chid, u32 handle, u32 context);
+int  nvkm_ramht_new(struct nvkm_device *, u32 size, u32 align,
+                   struct nvkm_gpuobj *, struct nvkm_ramht **);
+void nvkm_ramht_del(struct nvkm_ramht **);
+int  nvkm_ramht_insert(struct nvkm_ramht *, struct nvkm_object *,
+                      int chid, int addr, u32 handle, u32 context);
 void nvkm_ramht_remove(struct nvkm_ramht *, int cookie);
-int  nvkm_ramht_new(struct nvkm_object *, struct nvkm_object *, u32 size,
-                   u32 align, struct nvkm_ramht **);
-
-static inline void
-nvkm_ramht_ref(struct nvkm_ramht *obj, struct nvkm_ramht **ref)
-{
-       nvkm_gpuobj_ref(&obj->gpuobj, (struct nvkm_gpuobj **)ref);
-}
+struct nvkm_gpuobj *
+nvkm_ramht_search(struct nvkm_ramht *, int chid, u32 handle);
 #endif
index 061adedc6e2cfc6a04563877767b6c9ca12be507..307d532696250f33810c13efee6236090c9a1a03 100644 (file)
@@ -33,74 +33,143 @@ nvkm_ramht_hash(struct nvkm_ramht *ramht, int chid, u32 handle)
        }
 
        hash ^= chid << (ramht->bits - 4);
-       hash  = hash << 3;
        return hash;
 }
 
-int
-nvkm_ramht_insert(struct nvkm_ramht *ramht, int chid, u32 handle, u32 context)
+struct nvkm_gpuobj *
+nvkm_ramht_search(struct nvkm_ramht *ramht, int chid, u32 handle)
 {
-       struct nvkm_gpuobj *gpuobj = &ramht->gpuobj;
-       int ret = -ENOSPC;
        u32 co, ho;
 
        co = ho = nvkm_ramht_hash(ramht, chid, handle);
-       nvkm_kmap(gpuobj);
        do {
-               if (!nvkm_ro32(gpuobj, co + 4)) {
-                       nvkm_wo32(gpuobj, co + 0, handle);
-                       nvkm_wo32(gpuobj, co + 4, context);
-                       ret = co;
-                       break;
+               if (ramht->data[co].chid == chid) {
+                       if (ramht->data[co].handle == handle)
+                               return ramht->data[co].inst;
                }
 
-               co += 8;
-               if (co >= nv_gpuobj(ramht)->size)
+               if (++co >= ramht->size)
                        co = 0;
        } while (co != ho);
-       nvkm_done(gpuobj);
 
-       return ret;
+       return NULL;
+}
+
+static int
+nvkm_ramht_update(struct nvkm_ramht *ramht, int co, struct nvkm_object *object,
+                 int chid, int addr, u32 handle, u32 context)
+{
+       struct nvkm_ramht_data *data = &ramht->data[co];
+       u64 inst = 0x00000040; /* just non-zero for <=g8x fifo ramht */
+       int ret;
+
+       nvkm_gpuobj_del(&data->inst);
+       data->chid = chid;
+       data->handle = handle;
+
+       if (!object) {
+               inst = 0;
+               goto done;
+       }
+
+       if (nv_iclass(object, NV_GPUOBJ_CLASS)) {
+               struct nvkm_gpuobj *gpuobj = nv_gpuobj(object);
+               if (ramht->device->card_type >= NV_50)
+                       inst = gpuobj->node->offset;
+               else
+                       inst = gpuobj->addr;
+               goto done;
+       }
+
+       ret = nvkm_object_bind(object, ramht->parent, 16, &data->inst);
+       if (ret) {
+               if (ret != -ENODEV) {
+                       data->chid = -1;
+                       return ret;
+               }
+               data->inst = NULL;
+       }
+
+       if (data->inst) {
+               if (ramht->device->card_type >= NV_50)
+                       inst = data->inst->node->offset;
+               else
+                       inst = data->inst->addr;
+       }
+
+done:
+       if (addr < 0) context |= inst << -addr;
+       else          context |= inst >>  addr;
+
+       nvkm_kmap(ramht->gpuobj);
+       nvkm_wo32(ramht->gpuobj, (co << 3) + 0, handle);
+       nvkm_wo32(ramht->gpuobj, (co << 3) + 4, context);
+       nvkm_done(ramht->gpuobj);
+       return co + 1;
 }
 
 void
 nvkm_ramht_remove(struct nvkm_ramht *ramht, int cookie)
 {
-       struct nvkm_gpuobj *gpuobj = &ramht->gpuobj;
-       nvkm_kmap(gpuobj);
-       nvkm_wo32(gpuobj, cookie + 0, 0x00000000);
-       nvkm_wo32(gpuobj, cookie + 4, 0x00000000);
-       nvkm_done(gpuobj);
+       if (--cookie >= 0)
+               nvkm_ramht_update(ramht, cookie, NULL, -1, 0, 0, 0);
 }
 
-static struct nvkm_oclass
-nvkm_ramht_oclass = {
-       .handle = 0x0000abcd,
-       .ofuncs = &(struct nvkm_ofuncs) {
-               .ctor = NULL,
-               .dtor = _nvkm_gpuobj_dtor,
-               .init = _nvkm_gpuobj_init,
-               .fini = _nvkm_gpuobj_fini,
-               .rd32 = _nvkm_gpuobj_rd32,
-               .wr32 = _nvkm_gpuobj_wr32,
-       },
-};
+int
+nvkm_ramht_insert(struct nvkm_ramht *ramht, struct nvkm_object *object,
+                 int chid, int addr, u32 handle, u32 context)
+{
+       u32 co, ho;
+
+       if (nvkm_ramht_search(ramht, chid, handle))
+               return -EEXIST;
+
+       co = ho = nvkm_ramht_hash(ramht, chid, handle);
+       do {
+               if (ramht->data[co].chid < 0) {
+                       return nvkm_ramht_update(ramht, co, object, chid,
+                                                addr, handle, context);
+               }
+
+               if (++co >= ramht->size)
+                       co = 0;
+       } while (co != ho);
+
+       return -ENOSPC;
+}
+
+void
+nvkm_ramht_del(struct nvkm_ramht **pramht)
+{
+       struct nvkm_ramht *ramht = *pramht;
+       if (ramht) {
+               nvkm_gpuobj_del(&ramht->gpuobj);
+               kfree(*pramht);
+               *pramht = NULL;
+       }
+}
 
 int
-nvkm_ramht_new(struct nvkm_object *parent, struct nvkm_object *pargpu,
-              u32 size, u32 align, struct nvkm_ramht **pramht)
+nvkm_ramht_new(struct nvkm_device *device, u32 size, u32 align,
+              struct nvkm_gpuobj *parent, struct nvkm_ramht **pramht)
 {
        struct nvkm_ramht *ramht;
-       int ret;
+       int ret, i;
 
-       ret = nvkm_gpuobj_create(parent, parent->engine ?
-                                &parent->engine->subdev.object : NULL, /* <nv50 ramht */
-                                &nvkm_ramht_oclass, 0, pargpu, size,
-                                align, NVOBJ_FLAG_ZERO_ALLOC, &ramht);
-       *pramht = ramht;
-       if (ret)
-               return ret;
+       if (!(ramht = *pramht = kzalloc(sizeof(*ramht) + (size >> 3) *
+                                       sizeof(*ramht->data), GFP_KERNEL)))
+               return -ENOMEM;
+
+       ramht->device = device;
+       ramht->parent = parent;
+       ramht->size = size >> 3;
+       ramht->bits = order_base_2(ramht->size);
+       for (i = 0; i < ramht->size; i++)
+               ramht->data[i].chid = -1;
 
-       ramht->bits = order_base_2(nv_gpuobj(ramht)->size >> 3);
-       return 0;
+       ret = nvkm_gpuobj_new(ramht->device, size, align, true,
+                             ramht->parent, &ramht->gpuobj);
+       if (ret)
+               nvkm_ramht_del(pramht);
+       return ret;
 }
index 4161326b4f5b90b3179401667f34a22b607a73a8..7a8ea497eb26b35050fb9630a6775993caf67832 100644 (file)
@@ -80,7 +80,7 @@ gf110_disp_dmac_object_attach(struct nvkm_object *parent,
        struct nv50_disp_chan *chan = (void *)parent;
        u32 addr = nv_gpuobj(object)->node->offset;
        u32 data = (chan->chid << 27) | (addr << 9) | 0x00000001;
-       return nvkm_ramht_insert(base->ramht, chan->chid, name, data);
+       return nvkm_ramht_insert(base->ramht, NULL, chan->chid, 0, name, data);
 }
 
 static void
index 2568e5d5790e831a17cd9d7460abde8978464de7..a3632d4b05d4c61e4de0ddeaef0a4083add6d458 100644 (file)
@@ -193,7 +193,7 @@ nv50_disp_dmac_object_attach(struct nvkm_object *parent,
        u32 addr = nv_gpuobj(object)->node->offset;
        u32 chid = chan->chid;
        u32 data = (chid << 28) | (addr << 10) | chid;
-       return nvkm_ramht_insert(base->ramht, chid, name, data);
+       return nvkm_ramht_insert(base->ramht, NULL, chid, 0, name, data);
 }
 
 static void
@@ -1153,6 +1153,8 @@ nv50_disp_main_ctor(struct nvkm_object *parent,
 {
        struct nv50_disp *disp = (void *)engine;
        struct nv50_disp_base *base;
+       struct nvkm_device *device = disp->base.engine.subdev.device;
+       struct nvkm_gpuobj *instmem = (void *)parent;
        int ret;
 
        ret = nvkm_parent_create(parent, engine, oclass, 0,
@@ -1161,15 +1163,14 @@ nv50_disp_main_ctor(struct nvkm_object *parent,
        if (ret)
                return ret;
 
-       return nvkm_ramht_new(nv_object(base), nv_object(base), 0x1000, 0,
-                             &base->ramht);
+       return nvkm_ramht_new(device, 0x1000, 0, instmem, &base->ramht);
 }
 
 void
 nv50_disp_main_dtor(struct nvkm_object *object)
 {
        struct nv50_disp_base *base = (void *)object;
-       nvkm_ramht_ref(NULL, &base->ramht);
+       nvkm_ramht_del(&base->ramht);
        nvkm_parent_destroy(&base->base);
 }
 
@@ -1235,7 +1236,7 @@ nv50_disp_main_init(struct nvkm_object *object)
        }
 
        /* point at display engine memory area (hash table, objects) */
-       nvkm_wr32(device, 0x610010, (nv_gpuobj(base->ramht)->addr >> 8) | 9);
+       nvkm_wr32(device, 0x610010, (base->ramht->gpuobj->addr >> 8) | 9);
 
        /* enable supervisor interrupts, disable everything else */
        nvkm_wr32(device, 0x61002c, 0x00000370);
index 058296b2f2852310da12fd91a253436fe167fb22..2997193697c0eb6fe49eda6f29353bae062652f1 100644 (file)
@@ -161,7 +161,7 @@ g84_fifo_object_attach(struct nvkm_object *parent,
                }
        }
 
-       return nvkm_ramht_insert(chan->ramht, 0, handle, context);
+       return nvkm_ramht_insert(chan->ramht, NULL, 0, 0, handle, context);
 }
 
 static int
@@ -172,6 +172,7 @@ g84_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
        union {
                struct nv50_channel_dma_v0 v0;
        } *args = data;
+       struct nvkm_device *device = parent->engine->subdev.device;
        struct nv50_fifo_base *base = (void *)parent;
        struct nv50_fifo_chan *chan;
        int ret;
@@ -208,7 +209,7 @@ g84_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
 
        args->v0.chid = chan->base.chid;
 
-       ret = nvkm_ramht_new(nv_object(chan), nv_object(chan), 0x8000, 16,
+       ret = nvkm_ramht_new(device, 0x8000, 16, &base->base.gpuobj,
                             &chan->ramht);
        if (ret)
                return ret;
@@ -232,7 +233,7 @@ g84_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
        nvkm_wo32(base->ramfc, 0x7c, 0x30000001);
        nvkm_wo32(base->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
                                     (4 << 24) /* SEARCH_FULL */ |
-                                    (chan->ramht->gpuobj.node->offset >> 4));
+                                    (chan->ramht->gpuobj->node->offset >> 4));
        nvkm_wo32(base->ramfc, 0x88, base->cache->addr >> 10);
        nvkm_wo32(base->ramfc, 0x98, nv_gpuobj(base)->addr >> 12);
        nvkm_done(base->ramfc);
@@ -247,6 +248,7 @@ g84_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
        union {
                struct nv50_channel_gpfifo_v0 v0;
        } *args = data;
+       struct nvkm_device *device = parent->engine->subdev.device;
        struct nv50_fifo_base *base = (void *)parent;
        struct nv50_fifo_chan *chan;
        u64 ioffset, ilength;
@@ -285,7 +287,7 @@ g84_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
 
        args->v0.chid = chan->base.chid;
 
-       ret = nvkm_ramht_new(nv_object(chan), nv_object(chan), 0x8000, 16,
+       ret = nvkm_ramht_new(device, 0x8000, 16, &base->base.gpuobj,
                             &chan->ramht);
        if (ret)
                return ret;
@@ -309,7 +311,7 @@ g84_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
        nvkm_wo32(base->ramfc, 0x7c, 0x30000001);
        nvkm_wo32(base->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
                                     (4 << 24) /* SEARCH_FULL */ |
-                                    (chan->ramht->gpuobj.node->offset >> 4));
+                                    (chan->ramht->gpuobj->node->offset >> 4));
        nvkm_wo32(base->ramfc, 0x88, base->cache->addr >> 10);
        nvkm_wo32(base->ramfc, 0x98, nv_gpuobj(base)->addr >> 12);
        nvkm_done(base->ramfc);
index 4bec70730558688d4a4c3055bdffd0b8d122f6ff..cd5009302e223d11d22ff00202cbd11822cc7cc5 100644 (file)
@@ -86,7 +86,7 @@ nv04_fifo_object_attach(struct nvkm_object *parent,
        context |= chid << 24;
 
        mutex_lock(&nv_subdev(fifo)->mutex);
-       ret = nvkm_ramht_insert(imem->ramht, chid, handle, context);
+       ret = nvkm_ramht_insert(imem->ramht, NULL, chid, 0, handle, context);
        mutex_unlock(&nv_subdev(fifo)->mutex);
        return ret;
 }
@@ -625,7 +625,7 @@ nv04_fifo_init(struct nvkm_object *object)
 
        nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
                                            ((ramht->bits - 9) << 16) |
-                                           (ramht->gpuobj.addr >> 8));
+                                           (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);
 
index 69b9d421305bcc8e7e4faf1e1183e0c26d32ffac..e27180435bff3378c3a8fb0af14315685b8f92bb 100644 (file)
@@ -191,7 +191,7 @@ nv17_fifo_init(struct nvkm_object *object)
 
        nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
                                            ((ramht->bits - 9) << 16) |
-                                           (ramht->gpuobj.addr >> 8));
+                                           (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 |
                                            0x00010000);
index a2d8da8a9341ea8b45d5405d39b1a1898e2a6841..f2f0e3d744936f3df1606b4386a5794d1577477b 100644 (file)
@@ -98,7 +98,7 @@ nv40_fifo_object_attach(struct nvkm_object *parent,
        context |= chid << 23;
 
        mutex_lock(&nv_subdev(fifo)->mutex);
-       ret = nvkm_ramht_insert(imem->ramht, chid, handle, context);
+       ret = nvkm_ramht_insert(imem->ramht, NULL, chid, 0, handle, context);
        mutex_unlock(&nv_subdev(fifo)->mutex);
        return ret;
 }
@@ -322,7 +322,7 @@ nv40_fifo_init(struct nvkm_object *object)
 
        nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
                                            ((ramht->bits - 9) << 16) |
-                                           (ramht->gpuobj.addr >> 8));
+                                           (ramht->gpuobj->addr >> 8));
        nvkm_wr32(device, NV03_PFIFO_RAMRO, nvkm_memory_addr(ramro) >> 8);
 
        switch (nv_device(fifo)->chipset) {
index 620c0cfb2453b070c6525b9287203010bc94c4ce..2b37fda876f4355f4380ee28f8e298781515cb75 100644 (file)
@@ -182,7 +182,7 @@ nv50_fifo_object_attach(struct nvkm_object *parent,
                }
        }
 
-       return nvkm_ramht_insert(chan->ramht, 0, handle, context);
+       return nvkm_ramht_insert(chan->ramht, NULL, 0, 0, handle, context);
 }
 
 void
@@ -200,6 +200,7 @@ nv50_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
        union {
                struct nv50_channel_dma_v0 v0;
        } *args = data;
+       struct nvkm_device *device = parent->engine->subdev.device;
        struct nv50_fifo_base *base = (void *)parent;
        struct nv50_fifo_chan *chan;
        int ret;
@@ -231,7 +232,7 @@ nv50_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
        nv_parent(chan)->object_attach = nv50_fifo_object_attach;
        nv_parent(chan)->object_detach = nv50_fifo_object_detach;
 
-       ret = nvkm_ramht_new(nv_object(chan), nv_object(chan), 0x8000, 16,
+       ret = nvkm_ramht_new(device, 0x8000, 16, &base->base.gpuobj,
                             &chan->ramht);
        if (ret)
                return ret;
@@ -250,7 +251,7 @@ nv50_fifo_chan_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine,
        nvkm_wo32(base->ramfc, 0x7c, 0x30000001);
        nvkm_wo32(base->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
                                     (4 << 24) /* SEARCH_FULL */ |
-                                    (chan->ramht->gpuobj.node->offset >> 4));
+                                    (chan->ramht->gpuobj->node->offset >> 4));
        nvkm_done(base->ramfc);
        return 0;
 }
@@ -263,6 +264,7 @@ nv50_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
        union {
                struct nv50_channel_gpfifo_v0 v0;
        } *args = data;
+       struct nvkm_device *device = parent->engine->subdev.device;
        struct nv50_fifo_base *base = (void *)parent;
        struct nv50_fifo_chan *chan;
        u64 ioffset, ilength;
@@ -296,7 +298,7 @@ nv50_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
        nv_parent(chan)->object_attach = nv50_fifo_object_attach;
        nv_parent(chan)->object_detach = nv50_fifo_object_detach;
 
-       ret = nvkm_ramht_new(nv_object(chan), nv_object(chan), 0x8000, 16,
+       ret = nvkm_ramht_new(device, 0x8000, 16, &base->base.gpuobj,
                             &chan->ramht);
        if (ret)
                return ret;
@@ -315,7 +317,7 @@ nv50_fifo_chan_ctor_ind(struct nvkm_object *parent, struct nvkm_object *engine,
        nvkm_wo32(base->ramfc, 0x7c, 0x30000001);
        nvkm_wo32(base->ramfc, 0x80, ((chan->ramht->bits - 9) << 27) |
                                     (4 << 24) /* SEARCH_FULL */ |
-                                    (chan->ramht->gpuobj.node->offset >> 4));
+                                    (chan->ramht->gpuobj->node->offset >> 4));
        nvkm_done(base->ramfc);
        return 0;
 }
@@ -324,7 +326,7 @@ void
 nv50_fifo_chan_dtor(struct nvkm_object *object)
 {
        struct nv50_fifo_chan *chan = (void *)object;
-       nvkm_ramht_ref(NULL, &chan->ramht);
+       nvkm_ramht_del(&chan->ramht);
        nvkm_fifo_channel_destroy(&chan->base);
 }
 
index 56330ccf46563e70ef24c591187187823a479234..1df45273bff7baeb63e7cf493aa77101a42cf581 100644 (file)
@@ -156,7 +156,7 @@ nv04_instmem_dtor(struct nvkm_object *object)
        struct nv04_instmem *imem = (void *)object;
        nvkm_memory_del(&imem->base.ramfc);
        nvkm_memory_del(&imem->base.ramro);
-       nvkm_ramht_ref(NULL, &imem->base.ramht);
+       nvkm_ramht_del(&imem->base.ramht);
        nvkm_memory_del(&imem->base.vbios);
        nvkm_mm_fini(&imem->heap);
        nvkm_instmem_destroy(&imem->base);
@@ -198,8 +198,7 @@ nv04_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
                return ret;
 
        /* 0x10000-0x18000: reserve for RAMHT */
-       ret = nvkm_ramht_new(nv_object(imem), NULL, 0x08000, 0,
-                            &imem->base.ramht);
+       ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht);
        if (ret)
                return ret;
 
index 5a2709d499e994152ba6e55e44342233716035ac..8e7a11503c09e30e6b4712e31ba0971d798c8342 100644 (file)
@@ -157,7 +157,7 @@ nv40_instmem_dtor(struct nvkm_object *object)
        struct nv40_instmem *imem = (void *)object;
        nvkm_memory_del(&imem->base.ramfc);
        nvkm_memory_del(&imem->base.ramro);
-       nvkm_ramht_ref(NULL, &imem->base.ramht);
+       nvkm_ramht_del(&imem->base.ramht);
        nvkm_memory_del(&imem->base.vbios);
        nvkm_mm_fini(&imem->heap);
        if (imem->iomem)
@@ -227,8 +227,7 @@ nv40_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
                return ret;
 
        /* 0x10000-0x18000: reserve for RAMHT */
-       ret = nvkm_ramht_new(nv_object(imem), NULL, 0x08000, 0,
-                            &imem->base.ramht);
+       ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht);
        if (ret)
                return ret;