drm/nouveau/ramht: remove dependence on namedb

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h

@@ -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

drivers/gpu/drm/nouveau/nvkm/core/ramht.c

@@ -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;
 }

drivers/gpu/drm/nouveau/nvkm/engine/disp/gf110.c

@@ -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

drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c

@@ -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);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/g84.c

@@ -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);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c

@@ -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);
 

drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv17.c

@@ -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);

drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c

@@ -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) {

drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.c

@@ -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);
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c

@@ -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;
 

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c

@@ -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;