1 files changed, 198 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/instmem/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/instmem/nv04.c
new file mode 100644
index 000000000000..ba4d28b50368
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/instmem/nv04.c
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/fb.h>
+
+#include "nv04.h"
+
+static int
+nv04_instobj_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		  struct nouveau_oclass *oclass, void *data, u32 size,
+		  struct nouveau_object **pobject)
+{
+	struct nv04_instmem_priv *priv = (void *)engine;
+	struct nv04_instobj_priv *node;
+	int ret, align;
+
+	align = (unsigned long)data;
+	if (!align)
+		align = 1;
+
+	ret = nouveau_instobj_create(parent, engine, oclass, &node);
+	*pobject = nv_object(node);
+	if (ret)
+		return ret;
+
+	ret = nouveau_mm_head(&priv->heap, 1, size, size, align, &node->mem);
+	if (ret)
+		return ret;
+
+	node->base.addr = node->mem->offset;
+	node->base.size = node->mem->length;
+	return 0;
+}
+
+static void
+nv04_instobj_dtor(struct nouveau_object *object)
+{
+	struct nv04_instmem_priv *priv = (void *)object->engine;
+	struct nv04_instobj_priv *node = (void *)object;
+	nouveau_mm_free(&priv->heap, &node->mem);
+	nouveau_instobj_destroy(&node->base);
+}
+
+static u32
+nv04_instobj_rd32(struct nouveau_object *object, u32 addr)
+{
+	struct nv04_instobj_priv *node = (void *)object;
+	return nv_ro32(object->engine, node->mem->offset + addr);
+}
+
+static void
+nv04_instobj_wr32(struct nouveau_object *object, u32 addr, u32 data)
+{
+	struct nv04_instobj_priv *node = (void *)object;
+	nv_wo32(object->engine, node->mem->offset + addr, data);
+}
+
+static struct nouveau_oclass
+nv04_instobj_oclass = {
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_instobj_ctor,
+		.dtor = nv04_instobj_dtor,
+		.init = _nouveau_instobj_init,
+		.fini = _nouveau_instobj_fini,
+		.rd32 = nv04_instobj_rd32,
+		.wr32 = nv04_instobj_wr32,
+	},
+};
+
+int
+nv04_instmem_alloc(struct nouveau_instmem *imem, struct nouveau_object *parent,
+		   u32 size, u32 align, struct nouveau_object **pobject)
+{
+	struct nouveau_object *engine = nv_object(imem);
+	struct nv04_instmem_priv *priv = (void *)(imem);
+	int ret;
+
+	ret = nouveau_object_ctor(parent, engine, &nv04_instobj_oclass,
+				  (void *)(unsigned long)align, size, pobject);
+	if (ret)
+		return ret;
+
+	/* INSTMEM itself creates objects to reserve (and preserve across
+	 * suspend/resume) various fixed data locations, each one of these
+	 * takes a reference on INSTMEM itself, causing it to never be
+	 * freed.  We drop all the self-references here to avoid this.
+	 */
+	if (unlikely(!priv->created))
+		atomic_dec(&engine->refcount);
+
+	return 0;
+}
+
+static int
+nv04_instmem_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		  struct nouveau_oclass *oclass, void *data, u32 size,
+		  struct nouveau_object **pobject)
+{
+	struct nv04_instmem_priv *priv;
+	int ret;
+
+	ret = nouveau_instmem_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	/* PRAMIN aperture maps over the end of VRAM, reserve it */
+	priv->base.reserved = 512 * 1024;
+	priv->base.alloc    = nv04_instmem_alloc;
+
+	ret = nouveau_mm_init(&priv->heap, 0, priv->base.reserved, 1);
+	if (ret)
+		return ret;
+
+	/* 0x00000-0x10000: reserve for probable vbios image */
+	ret = nouveau_gpuobj_new(parent, NULL, 0x10000, 0, 0, &priv->vbios);
+	if (ret)
+		return ret;
+
+	/* 0x10000-0x18000: reserve for RAMHT */
+	ret = nouveau_ramht_new(parent, NULL, 0x08000, 0, &priv->ramht);
+	if (ret)
+		return ret;
+
+	/* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */
+	ret = nouveau_gpuobj_new(parent, NULL, 0x00800, 0,
+				 NVOBJ_FLAG_ZERO_ALLOC, &priv->ramfc);
+	if (ret)
+		return ret;
+
+	/* 0x18800-0x18a00: reserve for RAMRO */
+	ret = nouveau_gpuobj_new(parent, NULL, 0x00200, 0, 0, &priv->ramro);
+	if (ret)
+		return ret;
+
+	priv->created = true;
+	return 0;
+}
+
+void
+nv04_instmem_dtor(struct nouveau_object *object)
+{
+	struct nv04_instmem_priv *priv = (void *)object;
+	nouveau_gpuobj_ref(NULL, &priv->ramfc);
+	nouveau_gpuobj_ref(NULL, &priv->ramro);
+	nouveau_ramht_ref(NULL, &priv->ramht);
+	nouveau_gpuobj_ref(NULL, &priv->vbios);
+	nouveau_mm_fini(&priv->heap);
+	if (priv->iomem)
+		iounmap(priv->iomem);
+	nouveau_instmem_destroy(&priv->base);
+}
+
+static u32
+nv04_instmem_rd32(struct nouveau_object *object, u32 addr)
+{
+	return nv_rd32(object, 0x700000 + addr);
+}
+
+static void
+nv04_instmem_wr32(struct nouveau_object *object, u32 addr, u32 data)
+{
+	return nv_wr32(object, 0x700000 + addr, data);
+}
+
+struct nouveau_oclass
+nv04_instmem_oclass = {
+	.handle = NV_SUBDEV(INSTMEM, 0x04),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_instmem_ctor,
+		.dtor = nv04_instmem_dtor,
+		.init = _nouveau_instmem_init,
+		.fini = _nouveau_instmem_fini,
+		.rd32 = nv04_instmem_rd32,
+		.wr32 = nv04_instmem_wr32,
+	},
+};