FreeBSD: Set up the nouveau build infrastructure

disabled by default until the rest of the patches are in.

38 files changed, 573 insertions, 1 deletions

diff --git a/bsd-core/Makefile b/bsd-core/Makefile
index a58ac0a5..0e0332df 100644
--- a/bsd-core/Makefile
+++ b/bsd-core/Makefile
@@ -1,6 +1,6 @@
 SHARED=		../shared-core
 
-SUBDIR = drm mach64 mga r128 radeon savage sis tdfx i915 # via
+SUBDIR = drm mach64 mga r128 radeon savage sis tdfx i915 #nouveau
 
 .include <bsd.obj.mk>
 
diff --git a/bsd-core/nouveau/@ b/bsd-core/nouveau/@
new file mode 120000
index 00000000..8fd4e8f4
--- /dev/null
+++ b/bsd-core/nouveau/@
@@ -0,0 +1 @@
+/usr/src/sys
\ No newline at end of file
diff --git a/bsd-core/nouveau/Makefile b/bsd-core/nouveau/Makefile
new file mode 100644
index 00000000..b0d72c90
--- /dev/null
+++ b/bsd-core/nouveau/Makefile
@@ -0,0 +1,33 @@
+# $FreeBSD$
+
+.PATH:	${.CURDIR}/..
+KMOD	= nouveau
+NO_MAN	= YES
+SRCS    = nouveau_drv.c nouveau_state.c nouveau_mem.c nouveau_object.c \
+	  nouveau_sgdma.c nouveau_fifo.c nouveau_notifier.c nouveau_dma.c \
+	  nouveau_irq.c nouveau_swmthd.c \
+	  nv04_timer.c \
+	  nv04_mc.c nv40_mc.c nv50_mc.c \
+	  nv04_fb.c nv10_fb.c nv40_fb.c \
+	  nv04_fifo.c nv10_fifo.c nv40_fifo.c nv50_fifo.c \
+	  nv04_graph.c nv10_graph.c nv20_graph.c \
+	  nv40_graph.c nv50_graph.c \
+	  nv04_instmem.c nv50_instmem.c
+#	  nouveau_bo.c nouveau_fence.c \
+SRCS   += device_if.h bus_if.h pci_if.h opt_drm.h
+CFLAGS += ${DEBUG_FLAGS} -I. -I..
+
+.if defined(DRM_DEBUG)
+DRM_DEBUG_OPT= "\#define DRM_DEBUG 1"
+.endif
+
+.if !defined(DRM_NOLINUX)
+DRM_LINUX_OPT= "\#define DRM_LINUX 1"
+.endif
+
+opt_drm.h:
+	touch opt_drm.h
+	echo $(DRM_DEBUG_OPT) >> opt_drm.h
+	echo $(DRM_LINUX_OPT) >> opt_drm.h
+
+.include <bsd.kmod.mk>
diff --git a/bsd-core/nouveau/machine b/bsd-core/nouveau/machine
new file mode 120000
index 00000000..f5ca0131
--- /dev/null
+++ b/bsd-core/nouveau/machine
@@ -0,0 +1 @@
+/usr/src/sys/amd64/include
\ No newline at end of file
diff --git a/bsd-core/nouveau_dma.c b/bsd-core/nouveau_dma.c
new file mode 120000
index 00000000..f8e0bdc3
--- /dev/null
+++ b/bsd-core/nouveau_dma.c
@@ -0,0 +1 @@
+../shared-core/nouveau_dma.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_dma.h b/bsd-core/nouveau_dma.h
new file mode 120000
index 00000000..a545e387
--- /dev/null
+++ b/bsd-core/nouveau_dma.h
@@ -0,0 +1 @@
+../shared-core/nouveau_dma.h
\ No newline at end of file
diff --git a/bsd-core/nouveau_drm.h b/bsd-core/nouveau_drm.h
new file mode 120000
index 00000000..d300ae06
--- /dev/null
+++ b/bsd-core/nouveau_drm.h
@@ -0,0 +1 @@
+../shared-core/nouveau_drm.h
\ No newline at end of file
diff --git a/bsd-core/nouveau_drv.c b/bsd-core/nouveau_drv.c
new file mode 100644
index 00000000..28b3f9a3
--- /dev/null
+++ b/bsd-core/nouveau_drv.c
@@ -0,0 +1,148 @@
+/* nouveau_drv.c.c -- nouveau nouveau driver -*- linux-c -*-
+ * Created: Wed Feb 14 17:10:04 2001 by gareth@valinux.com
+ */
+/*-
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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:
+ *    Gareth Hughes <gareth@valinux.com>
+ *
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "drm_pciids.h"
+
+extern struct drm_ioctl_desc nouveau_ioctls[];
+extern int nouveau_max_ioctl;
+
+/* drv_PCI_IDs for nouveau is just to match the vendor id */
+static struct drm_pci_id_list nouveau_pciidlist[] = {
+	{0x10DE, 0, 0, "NVidia Display Adapter"}, \
+	{0, 0, 0, NULL}
+};
+
+static void nouveau_configure(struct drm_device *dev)
+{
+	dev->driver->driver_features =
+	   DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_HAVE_IRQ;
+
+	dev->driver->buf_priv_size	= sizeof(struct drm_nouveau_private);
+	dev->driver->load		= nouveau_load;
+	dev->driver->unload		= nouveau_unload;
+	dev->driver->firstopen		= nouveau_firstopen;
+	dev->driver->preclose		= nouveau_preclose;
+	dev->driver->lastclose		= nouveau_lastclose;
+	dev->driver->irq_preinstall	= nouveau_irq_preinstall;
+	dev->driver->irq_postinstall	= nouveau_irq_postinstall;
+	dev->driver->irq_uninstall	= nouveau_irq_uninstall;
+	dev->driver->irq_handler	= nouveau_irq_handler;
+
+	dev->driver->ioctls		= nouveau_ioctls;
+	dev->driver->max_ioctl		= nouveau_max_ioctl;
+
+	dev->driver->name		= DRIVER_NAME;
+	dev->driver->desc		= DRIVER_DESC;
+	dev->driver->date		= DRIVER_DATE;
+	dev->driver->major		= DRIVER_MAJOR;
+	dev->driver->minor		= DRIVER_MINOR;
+	dev->driver->patchlevel		= DRIVER_PATCHLEVEL;
+}
+
+static int
+nouveau_probe(device_t kdev)
+{
+	int vendor;
+
+	if (pci_get_class(kdev) == PCIC_DISPLAY) {
+		vendor = pci_get_vendor(kdev);
+		if (vendor == 0x10de) {
+
+			const char *ident;
+			char model[64];
+
+			if (pci_get_vpd_ident(kdev, &ident) == 0) {
+				snprintf(model, 64, "%s", ident);
+				device_set_desc_copy(kdev, model);
+				DRM_DEBUG("VPD : %s\n", model);
+			}
+
+			return drm_probe(kdev, nouveau_pciidlist);
+		}
+	}
+	return ENXIO;
+}
+
+static int
+nouveau_attach(device_t kdev)
+{
+	struct drm_device *dev = device_get_softc(kdev);
+
+	dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
+	    M_WAITOK | M_ZERO);
+
+	nouveau_configure(dev);
+
+	return drm_attach(kdev, nouveau_pciidlist);
+}
+
+static int
+nouveau_detach(device_t kdev)
+{
+	struct drm_device *dev = device_get_softc(kdev);
+	int ret;
+
+	ret = drm_detach(kdev);
+
+	free(dev->driver, DRM_MEM_DRIVER);
+
+	return ret;
+}
+
+static device_method_t nouveau_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		nouveau_probe),
+	DEVMETHOD(device_attach,	nouveau_attach),
+	DEVMETHOD(device_detach,	nouveau_detach),
+
+	{ 0, 0 }
+};
+
+static driver_t nouveau_driver = {
+#if __FreeBSD_version >= 700010
+	"drm",
+#else
+	"drmsub",
+#endif
+	nouveau_methods,
+	sizeof(struct drm_device)
+};
+
+extern devclass_t drm_devclass;
+#if __FreeBSD_version >= 700010
+DRIVER_MODULE(nouveau, vgapci, nouveau_driver, drm_devclass, 0, 0);
+#else
+DRIVER_MODULE(nouveau, agp, nouveau_driver, drm_devclass, 0, 0);
+#endif
+MODULE_DEPEND(nouveau, drm, 1, 1, 1);
diff --git a/bsd-core/nouveau_drv.h b/bsd-core/nouveau_drv.h
new file mode 120000
index 00000000..8852e264
--- /dev/null
+++ b/bsd-core/nouveau_drv.h
@@ -0,0 +1 @@
+../shared-core/nouveau_drv.h
\ No newline at end of file
diff --git a/bsd-core/nouveau_fifo.c b/bsd-core/nouveau_fifo.c
new file mode 120000
index 00000000..60759a57
--- /dev/null
+++ b/bsd-core/nouveau_fifo.c
@@ -0,0 +1 @@
+../shared-core/nouveau_fifo.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_irq.c b/bsd-core/nouveau_irq.c
new file mode 120000
index 00000000..3137b813
--- /dev/null
+++ b/bsd-core/nouveau_irq.c
@@ -0,0 +1 @@
+../shared-core/nouveau_irq.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_mem.c b/bsd-core/nouveau_mem.c
new file mode 120000
index 00000000..a0085200
--- /dev/null
+++ b/bsd-core/nouveau_mem.c
@@ -0,0 +1 @@
+../shared-core/nouveau_mem.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_notifier.c b/bsd-core/nouveau_notifier.c
new file mode 120000
index 00000000..285469c5
--- /dev/null
+++ b/bsd-core/nouveau_notifier.c
@@ -0,0 +1 @@
+../shared-core/nouveau_notifier.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_object.c b/bsd-core/nouveau_object.c
new file mode 120000
index 00000000..1c1426e3
--- /dev/null
+++ b/bsd-core/nouveau_object.c
@@ -0,0 +1 @@
+../shared-core/nouveau_object.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_reg.h b/bsd-core/nouveau_reg.h
new file mode 120000
index 00000000..2ad07397
--- /dev/null
+++ b/bsd-core/nouveau_reg.h
@@ -0,0 +1 @@
+../shared-core/nouveau_reg.h
\ No newline at end of file
diff --git a/bsd-core/nouveau_sgdma.c b/bsd-core/nouveau_sgdma.c
new file mode 100644
index 00000000..99f854fe
--- /dev/null
+++ b/bsd-core/nouveau_sgdma.c
@@ -0,0 +1,357 @@
+#include "drmP.h"
+#include "nouveau_drv.h"
+
+#define NV_CTXDMA_PAGE_SHIFT 12
+#define NV_CTXDMA_PAGE_SIZE  (1 << NV_CTXDMA_PAGE_SHIFT)
+#define NV_CTXDMA_PAGE_MASK  (NV_CTXDMA_PAGE_SIZE - 1)
+
+#if 0
+struct nouveau_sgdma_be {
+	struct drm_ttm_backend backend;
+	struct drm_device *dev;
+
+	int         pages;
+	int         pages_populated;
+	dma_addr_t *pagelist;
+	int         is_bound;
+
+	unsigned int pte_start;
+};
+
+static int
+nouveau_sgdma_needs_ub_cache_adjust(struct drm_ttm_backend *be)
+{
+	return ((be->flags & DRM_BE_FLAG_BOUND_CACHED) ? 0 : 1);
+}
+
+static int
+nouveau_sgdma_populate(struct drm_ttm_backend *be, unsigned long num_pages,
+		       struct page **pages, struct page *dummy_read_page)
+{
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	int p, d, o;
+
+	DRM_DEBUG("num_pages = %ld\n", num_pages);
+
+	if (nvbe->pagelist)
+		return -EINVAL;
+	nvbe->pages    = (num_pages << PAGE_SHIFT) >> NV_CTXDMA_PAGE_SHIFT;
+	nvbe->pagelist = drm_alloc(nvbe->pages*sizeof(dma_addr_t),
+				   DRM_MEM_PAGES);
+
+	nvbe->pages_populated = d = 0;
+	for (p = 0; p < num_pages; p++) {
+		for (o = 0; o < PAGE_SIZE; o += NV_CTXDMA_PAGE_SIZE) {
+			struct page *page = pages[p];
+			if (!page)
+				page = dummy_read_page;
+#ifdef __linux__
+			nvbe->pagelist[d] = pci_map_page(nvbe->dev->pdev,
+							 page, o,
+							 NV_CTXDMA_PAGE_SIZE,
+							 PCI_DMA_BIDIRECTIONAL);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
+			if (pci_dma_mapping_error(nvbe->dev->pdev, nvbe->pagelist[d])) {
+#else
+			if (pci_dma_mapping_error(nvbe->pagelist[d])) {
+#endif
+				be->func->clear(be);
+				DRM_ERROR("pci_map_page failed\n");
+				return -EINVAL;
+			}
+#endif
+			nvbe->pages_populated = ++d;
+		}
+	}
+
+	return 0;
+}
+
+static void
+nouveau_sgdma_clear(struct drm_ttm_backend *be)
+{
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+#ifdef __linux__
+	int d;
+#endif
+	DRM_DEBUG("\n");
+
+	if (nvbe && nvbe->pagelist) {
+		if (nvbe->is_bound)
+			be->func->unbind(be);
+#ifdef __linux__
+		for (d = 0; d < nvbe->pages_populated; d++) {
+			pci_unmap_page(nvbe->dev->pdev, nvbe->pagelist[d],
+				       NV_CTXDMA_PAGE_SIZE,
+				       PCI_DMA_BIDIRECTIONAL);
+		}
+#endif
+		drm_free(nvbe->pagelist, nvbe->pages*sizeof(dma_addr_t),
+			 DRM_MEM_PAGES);
+	}
+}
+
+static int
+nouveau_sgdma_bind(struct drm_ttm_backend *be, struct drm_bo_mem_reg *mem)
+{
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
+	struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
+	uint64_t offset = (mem->mm_node->start << PAGE_SHIFT);
+	uint32_t i;
+
+	DRM_DEBUG("pg=0x%lx (0x%llx), cached=%d\n", mem->mm_node->start,
+		  (unsigned long long)offset,
+		  (mem->flags & DRM_BO_FLAG_CACHED) == 1);
+
+	if (offset & NV_CTXDMA_PAGE_MASK)
+		return -EINVAL;
+	nvbe->pte_start = (offset >> NV_CTXDMA_PAGE_SHIFT);
+	if (dev_priv->card_type < NV_50)
+		nvbe->pte_start += 2; /* skip ctxdma header */
+
+	for (i = nvbe->pte_start; i < nvbe->pte_start + nvbe->pages; i++) {
+		uint64_t pteval = nvbe->pagelist[i - nvbe->pte_start];
+
+		if (pteval & NV_CTXDMA_PAGE_MASK) {
+			DRM_ERROR("Bad pteval 0x%llx\n",
+				(unsigned long long)pteval);
+			return -EINVAL;
+		}
+
+		if (dev_priv->card_type < NV_50) {
+			INSTANCE_WR(gpuobj, i, pteval | 3);
+		} else {
+			INSTANCE_WR(gpuobj, (i<<1)+0, pteval | 0x21);
+			INSTANCE_WR(gpuobj, (i<<1)+1, 0x00000000);
+		}
+	}
+
+	nvbe->is_bound  = 1;
+	return 0;
+}
+
+static int
+nouveau_sgdma_unbind(struct drm_ttm_backend *be)
+{
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
+
+	DRM_DEBUG("\n");
+
+	if (nvbe->is_bound) {
+		struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
+		unsigned int pte;
+
+		pte = nvbe->pte_start;
+		while (pte < (nvbe->pte_start + nvbe->pages)) {
+			uint64_t pteval = dev_priv->gart_info.sg_dummy_bus;
+
+			if (dev_priv->card_type < NV_50) {
+				INSTANCE_WR(gpuobj, pte, pteval | 3);
+			} else {
+				INSTANCE_WR(gpuobj, (pte<<1)+0, pteval | 0x21);
+				INSTANCE_WR(gpuobj, (pte<<1)+1, 0x00000000);
+			}
+
+			pte++;
+		}
+
+		nvbe->is_bound = 0;
+	}
+
+	return 0;
+}
+
+static void
+nouveau_sgdma_destroy(struct drm_ttm_backend *be)
+{
+	DRM_DEBUG("\n");
+	if (be) {
+		struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+		if (nvbe) {
+			if (nvbe->pagelist)
+				be->func->clear(be);
+			drm_ctl_free(nvbe, sizeof(*nvbe), DRM_MEM_TTM);
+		}
+	}
+}
+
+static struct drm_ttm_backend_func nouveau_sgdma_backend = {
+	.needs_ub_cache_adjust	= nouveau_sgdma_needs_ub_cache_adjust,
+	.populate		= nouveau_sgdma_populate,
+	.clear			= nouveau_sgdma_clear,
+	.bind			= nouveau_sgdma_bind,
+	.unbind			= nouveau_sgdma_unbind,
+	.destroy		= nouveau_sgdma_destroy
+};
+
+struct drm_ttm_backend *
+nouveau_sgdma_init_ttm(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_sgdma_be *nvbe;
+
+	if (!dev_priv->gart_info.sg_ctxdma)
+		return NULL;
+
+	nvbe = drm_ctl_calloc(1, sizeof(*nvbe), DRM_MEM_TTM);
+	if (!nvbe)
+		return NULL;
+
+	nvbe->dev = dev;
+
+	nvbe->backend.func	= &nouveau_sgdma_backend;
+
+	return &nvbe->backend;
+}
+#endif
+
+int
+nouveau_sgdma_init(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpuobj *gpuobj = NULL;
+	uint32_t aper_size, obj_size;
+	int i, ret;
+
+	if (dev_priv->card_type < NV_50) {
+		aper_size = (64 * 1024 * 1024);
+		obj_size  = (aper_size >> NV_CTXDMA_PAGE_SHIFT) * 4;
+		obj_size += 8; /* ctxdma header */
+	} else {
+		/* 1 entire VM page table */
+		aper_size = (512 * 1024 * 1024);
+		obj_size  = (aper_size >> NV_CTXDMA_PAGE_SHIFT) * 8;
+	}
+
+	if ((ret = nouveau_gpuobj_new(dev, NULL, obj_size, 16,
+				      NVOBJ_FLAG_ALLOW_NO_REFS |
+				      NVOBJ_FLAG_ZERO_ALLOC |
+				      NVOBJ_FLAG_ZERO_FREE, &gpuobj)))  {
+		DRM_ERROR("Error creating sgdma object: %d\n", ret);
+		return ret;
+	}
+#ifdef __linux__
+	dev_priv->gart_info.sg_dummy_page =
+		alloc_page(GFP_KERNEL|__GFP_DMA32);
+	set_page_locked(dev_priv->gart_info.sg_dummy_page);
+	dev_priv->gart_info.sg_dummy_bus =
+		pci_map_page(dev->pdev, dev_priv->gart_info.sg_dummy_page, 0,
+			     PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+#endif
+	if (dev_priv->card_type < NV_50) {
+		/* Maybe use NV_DMA_TARGET_AGP for PCIE? NVIDIA do this, and
+		 * confirmed to work on c51.  Perhaps means NV_DMA_TARGET_PCIE
+		 * on those cards? */
+		INSTANCE_WR(gpuobj, 0, NV_CLASS_DMA_IN_MEMORY |
+				       (1 << 12) /* PT present */ |
+				       (0 << 13) /* PT *not* linear */ |
+				       (NV_DMA_ACCESS_RW  << 14) |
+				       (NV_DMA_TARGET_PCI << 16));
+		INSTANCE_WR(gpuobj, 1, aper_size - 1);
+		for (i=2; i<2+(aper_size>>12); i++) {
+			INSTANCE_WR(gpuobj, i,
+				    dev_priv->gart_info.sg_dummy_bus | 3);
+		}
+	} else {
+		for (i=0; i<obj_size; i+=8) {
+			INSTANCE_WR(gpuobj, (i+0)/4,
+				    dev_priv->gart_info.sg_dummy_bus | 0x21);
+			INSTANCE_WR(gpuobj, (i+4)/4, 0);
+		}
+	}
+
+	dev_priv->gart_info.type      = NOUVEAU_GART_SGDMA;
+	dev_priv->gart_info.aper_base = 0;
+	dev_priv->gart_info.aper_size = aper_size;
+	dev_priv->gart_info.sg_ctxdma = gpuobj;
+	return 0;
+}
+
+void
+nouveau_sgdma_takedown(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->gart_info.sg_dummy_page) {
+#ifdef __linux__
+		pci_unmap_page(dev->pdev, dev_priv->gart_info.sg_dummy_bus,
+			       NV_CTXDMA_PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+		unlock_page(dev_priv->gart_info.sg_dummy_page);
+		__free_page(dev_priv->gart_info.sg_dummy_page);
+#endif
+		dev_priv->gart_info.sg_dummy_page = NULL;
+		dev_priv->gart_info.sg_dummy_bus = 0;
+	}
+
+	nouveau_gpuobj_del(dev, &dev_priv->gart_info.sg_ctxdma);
+}
+
+#if 0
+int
+nouveau_sgdma_nottm_hack_init(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct drm_ttm_backend *be;
+	struct drm_scatter_gather sgreq;
+	struct drm_mm_node mm_node;
+	struct drm_bo_mem_reg mem;
+	int ret;
+
+	dev_priv->gart_info.sg_be = nouveau_sgdma_init_ttm(dev);
+	if (!dev_priv->gart_info.sg_be)
+		return -ENOMEM;
+	be = dev_priv->gart_info.sg_be;
+
+	/* Hack the aperture size down to the amount of system memory
+	 * we're going to bind into it.
+	 */
+	if (dev_priv->gart_info.aper_size > 32*1024*1024)
+		dev_priv->gart_info.aper_size = 32*1024*1024;
+
+	sgreq.size = dev_priv->gart_info.aper_size;
+	if ((ret = drm_sg_alloc(dev, &sgreq))) {
+		DRM_ERROR("drm_sg_alloc failed: %d\n", ret);
+		return ret;
+	}
+	dev_priv->gart_info.sg_handle = sgreq.handle;
+
+	if ((ret = be->func->populate(be, dev->sg->pages, dev->sg->pagelist, dev->bm.dummy_read_page))) {
+		DRM_ERROR("failed populate: %d\n", ret);
+		return ret;
+	}
+
+	mm_node.start = 0;
+	mem.mm_node = &mm_node;
+
+	if ((ret = be->func->bind(be, &mem))) {
+		DRM_ERROR("failed bind: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+void
+nouveau_sgdma_nottm_hack_takedown(struct drm_device *dev)
+{
+}
+#endif
+
+int
+nouveau_sgdma_get_page(struct drm_device *dev, uint32_t offset, uint32_t *page)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
+	int pte;
+
+	pte = (offset >> NV_CTXDMA_PAGE_SHIFT);
+	if (dev_priv->card_type < NV_50) {
+		*page = INSTANCE_RD(gpuobj, (pte + 2)) & ~NV_CTXDMA_PAGE_MASK;
+		return 0;
+	}
+
+	DRM_ERROR("Unimplemented on NV50\n");
+	return -EINVAL;
+}
diff --git a/bsd-core/nouveau_state.c b/bsd-core/nouveau_state.c
new file mode 120000
index 00000000..b304f6bb
--- /dev/null
+++ b/bsd-core/nouveau_state.c
@@ -0,0 +1 @@
+../shared-core/nouveau_state.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_swmthd.c b/bsd-core/nouveau_swmthd.c
new file mode 120000
index 00000000..c5390801
--- /dev/null
+++ b/bsd-core/nouveau_swmthd.c
@@ -0,0 +1 @@
+../shared-core/nouveau_swmthd.c
\ No newline at end of file
diff --git a/bsd-core/nouveau_swmthd.h b/bsd-core/nouveau_swmthd.h
new file mode 120000
index 00000000..33425dcd
--- /dev/null
+++ b/bsd-core/nouveau_swmthd.h
@@ -0,0 +1 @@
+../shared-core/nouveau_swmthd.h
\ No newline at end of file
diff --git a/bsd-core/nv04_fb.c b/bsd-core/nv04_fb.c
new file mode 120000
index 00000000..867e2007
--- /dev/null
+++ b/bsd-core/nv04_fb.c
@@ -0,0 +1 @@
+../shared-core/nv04_fb.c
\ No newline at end of file
diff --git a/bsd-core/nv04_fifo.c b/bsd-core/nv04_fifo.c
new file mode 120000
index 00000000..d10beb19
--- /dev/null
+++ b/bsd-core/nv04_fifo.c
@@ -0,0 +1 @@
+../shared-core/nv04_fifo.c
\ No newline at end of file
diff --git a/bsd-core/nv04_graph.c b/bsd-core/nv04_graph.c
new file mode 120000
index 00000000..0d7a0b35
--- /dev/null
+++ b/bsd-core/nv04_graph.c
@@ -0,0 +1 @@
+../shared-core/nv04_graph.c
\ No newline at end of file
diff --git a/bsd-core/nv04_instmem.c b/bsd-core/nv04_instmem.c
new file mode 120000
index 00000000..e720fb5b
--- /dev/null
+++ b/bsd-core/nv04_instmem.c
@@ -0,0 +1 @@
+../shared-core/nv04_instmem.c
\ No newline at end of file
diff --git a/bsd-core/nv04_mc.c b/bsd-core/nv04_mc.c
new file mode 120000
index 00000000..32e91825
--- /dev/null
+++ b/bsd-core/nv04_mc.c
@@ -0,0 +1 @@
+../shared-core/nv04_mc.c
\ No newline at end of file
diff --git a/bsd-core/nv04_timer.c b/bsd-core/nv04_timer.c
new file mode 120000
index 00000000..11108b2b
--- /dev/null
+++ b/bsd-core/nv04_timer.c
@@ -0,0 +1 @@
+../shared-core/nv04_timer.c
\ No newline at end of file
diff --git a/bsd-core/nv10_fb.c b/bsd-core/nv10_fb.c
new file mode 120000
index 00000000..f858c7c6
--- /dev/null
+++ b/bsd-core/nv10_fb.c
@@ -0,0 +1 @@
+../shared-core/nv10_fb.c
\ No newline at end of file
diff --git a/bsd-core/nv10_fifo.c b/bsd-core/nv10_fifo.c
new file mode 120000
index 00000000..8630ad04
--- /dev/null
+++ b/bsd-core/nv10_fifo.c
@@ -0,0 +1 @@
+../shared-core/nv10_fifo.c
\ No newline at end of file
diff --git a/bsd-core/nv10_graph.c b/bsd-core/nv10_graph.c
new file mode 120000
index 00000000..0d5a0eb4
--- /dev/null
+++ b/bsd-core/nv10_graph.c
@@ -0,0 +1 @@
+../shared-core/nv10_graph.c
\ No newline at end of file
diff --git a/bsd-core/nv20_graph.c b/bsd-core/nv20_graph.c
new file mode 120000
index 00000000..73049914
--- /dev/null
+++ b/bsd-core/nv20_graph.c
@@ -0,0 +1 @@
+../shared-core/nv20_graph.c
\ No newline at end of file
diff --git a/bsd-core/nv40_fb.c b/bsd-core/nv40_fb.c
new file mode 120000
index 00000000..4a816b13
--- /dev/null
+++ b/bsd-core/nv40_fb.c
@@ -0,0 +1 @@
+../shared-core/nv40_fb.c
\ No newline at end of file
diff --git a/bsd-core/nv40_fifo.c b/bsd-core/nv40_fifo.c
new file mode 120000
index 00000000..cc71e7a4
--- /dev/null
+++ b/bsd-core/nv40_fifo.c
@@ -0,0 +1 @@
+../shared-core/nv40_fifo.c
\ No newline at end of file
diff --git a/bsd-core/nv40_graph.c b/bsd-core/nv40_graph.c
new file mode 120000
index 00000000..2fe59919
--- /dev/null
+++ b/bsd-core/nv40_graph.c
@@ -0,0 +1 @@
+../shared-core/nv40_graph.c
\ No newline at end of file
diff --git a/bsd-core/nv40_mc.c b/bsd-core/nv40_mc.c
new file mode 120000
index 00000000..fff26494
--- /dev/null
+++ b/bsd-core/nv40_mc.c
@@ -0,0 +1 @@
+../shared-core/nv40_mc.c
\ No newline at end of file
diff --git a/bsd-core/nv50_fifo.c b/bsd-core/nv50_fifo.c
new file mode 120000
index 00000000..4c9990a9
--- /dev/null
+++ b/bsd-core/nv50_fifo.c
@@ -0,0 +1 @@
+../shared-core/nv50_fifo.c
\ No newline at end of file
diff --git a/bsd-core/nv50_graph.c b/bsd-core/nv50_graph.c
new file mode 120000
index 00000000..03f69e68
--- /dev/null
+++ b/bsd-core/nv50_graph.c
@@ -0,0 +1 @@
+../shared-core/nv50_graph.c
\ No newline at end of file
diff --git a/bsd-core/nv50_grctx.h b/bsd-core/nv50_grctx.h
new file mode 120000
index 00000000..d40b9a86
--- /dev/null
+++ b/bsd-core/nv50_grctx.h
@@ -0,0 +1 @@
+../shared-core/nv50_grctx.h
\ No newline at end of file
diff --git a/bsd-core/nv50_instmem.c b/bsd-core/nv50_instmem.c
new file mode 120000
index 00000000..4e45344a
--- /dev/null
+++ b/bsd-core/nv50_instmem.c
@@ -0,0 +1 @@
+../shared-core/nv50_instmem.c
\ No newline at end of file
diff --git a/bsd-core/nv50_mc.c b/bsd-core/nv50_mc.c
new file mode 120000
index 00000000..f4bb369e
--- /dev/null
+++ b/bsd-core/nv50_mc.c
@@ -0,0 +1 @@
+../shared-core/nv50_mc.c
\ No newline at end of file