drm/nouveau/bo: split buffer move functions into their own source files

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drivers/gpu/drm/nouveau/Kbuild

@@ -32,6 +32,13 @@ nouveau-y += nouveau_vga.o
 
 # DRM - memory management
 nouveau-y += nouveau_bo.o
+nouveau-y += nouveau_bo0039.o
+nouveau-y += nouveau_bo5039.o
+nouveau-y += nouveau_bo74c1.o
+nouveau-y += nouveau_bo85b5.o
+nouveau-y += nouveau_bo9039.o
+nouveau-y += nouveau_bo90b5.o
+nouveau-y += nouveau_boa0b5.o
 nouveau-y += nouveau_gem.o
 nouveau-$(CONFIG_DRM_NOUVEAU_SVM) += nouveau_svm.o
 nouveau-$(CONFIG_DRM_NOUVEAU_SVM) += nouveau_dmem.o

drivers/gpu/drm/nouveau/nouveau_bo.h

 /* SPDX-License-Identifier: MIT */
 #ifndef __NOUVEAU_BO_H__
 #define __NOUVEAU_BO_H__
-
+#include <drm/ttm/ttm_bo_driver.h>
 #include <drm/drm_gem.h>
 
 struct nouveau_channel;
+struct nouveau_cli;
+struct nouveau_drm;
 struct nouveau_fence;
-struct nvkm_vma;
 
 struct nouveau_bo {
 	struct ttm_buffer_object bo;
@@ -135,4 +136,30 @@ nouveau_bo_new_pin_map(struct nouveau_cli *cli, u64 size, int align, u32 flags,
 	}
 	return ret;
 }
+
+int nv04_bo_move_init(struct nouveau_channel *, u32);
+int nv04_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nv50_bo_move_init(struct nouveau_channel *, u32);
+int nv50_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nv84_bo_move_exec(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nva3_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nvc0_bo_move_init(struct nouveau_channel *, u32);
+int nvc0_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nvc0_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
+int nve0_bo_move_init(struct nouveau_channel *, u32);
+int nve0_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
+		      struct ttm_mem_reg *, struct ttm_mem_reg *);
+
 #endif

drivers/gpu/drm/nouveau/nouveau_bo0039.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_drv.h"
+
+static inline uint32_t
+nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
+		      struct nouveau_channel *chan, struct ttm_mem_reg *reg)
+{
+	if (reg->mem_type == TTM_PL_TT)
+		return NvDmaTT;
+	return chan->vram.handle;
+}
+
+int
+nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	u32 src_offset = old_reg->start << PAGE_SHIFT;
+	u32 dst_offset = new_reg->start << PAGE_SHIFT;
+	u32 page_count = new_reg->num_pages;
+	int ret;
+
+	ret = RING_SPACE(chan, 3);
+	if (ret)
+		return ret;
+
+	BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
+	OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, old_reg));
+	OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, new_reg));
+
+	page_count = new_reg->num_pages;
+	while (page_count) {
+		int line_count = (page_count > 2047) ? 2047 : page_count;
+
+		ret = RING_SPACE(chan, 11);
+		if (ret)
+			return ret;
+
+		BEGIN_NV04(chan, NvSubCopy,
+				 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
+		OUT_RING  (chan, src_offset);
+		OUT_RING  (chan, dst_offset);
+		OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
+		OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
+		OUT_RING  (chan, PAGE_SIZE); /* line_length */
+		OUT_RING  (chan, line_count);
+		OUT_RING  (chan, 0x00000101);
+		OUT_RING  (chan, 0x00000000);
+		BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
+		OUT_RING  (chan, 0);
+
+		page_count -= line_count;
+		src_offset += (PAGE_SIZE * line_count);
+		dst_offset += (PAGE_SIZE * line_count);
+	}
+
+	return 0;
+}
+
+int
+nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
+{
+	int ret = RING_SPACE(chan, 4);
+	if (ret == 0) {
+		BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
+		OUT_RING  (chan, handle);
+		BEGIN_NV04(chan, NvSubCopy, 0x0180, 1);
+		OUT_RING  (chan, chan->drm->ntfy.handle);
+	}
+
+	return ret;
+}

drivers/gpu/drm/nouveau/nouveau_bo5039.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_drv.h"
+#include "nouveau_mem.h"
+
+int
+nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	u64 length = (new_reg->num_pages << PAGE_SHIFT);
+	u64 src_offset = mem->vma[0].addr;
+	u64 dst_offset = mem->vma[1].addr;
+	int src_tiled = !!mem->kind;
+	int dst_tiled = !!nouveau_mem(new_reg)->kind;
+	int ret;
+
+	while (length) {
+		u32 amount, stride, height;
+
+		ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled));
+		if (ret)
+			return ret;
+
+		amount  = min(length, (u64)(4 * 1024 * 1024));
+		stride  = 16 * 4;
+		height  = amount / stride;
+
+		if (src_tiled) {
+			BEGIN_NV04(chan, NvSubCopy, 0x0200, 7);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, stride);
+			OUT_RING  (chan, height);
+			OUT_RING  (chan, 1);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, 0);
+		} else {
+			BEGIN_NV04(chan, NvSubCopy, 0x0200, 1);
+			OUT_RING  (chan, 1);
+		}
+		if (dst_tiled) {
+			BEGIN_NV04(chan, NvSubCopy, 0x021c, 7);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, stride);
+			OUT_RING  (chan, height);
+			OUT_RING  (chan, 1);
+			OUT_RING  (chan, 0);
+			OUT_RING  (chan, 0);
+		} else {
+			BEGIN_NV04(chan, NvSubCopy, 0x021c, 1);
+			OUT_RING  (chan, 1);
+		}
+
+		BEGIN_NV04(chan, NvSubCopy, 0x0238, 2);
+		OUT_RING  (chan, upper_32_bits(src_offset));
+		OUT_RING  (chan, upper_32_bits(dst_offset));
+		BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
+		OUT_RING  (chan, lower_32_bits(src_offset));
+		OUT_RING  (chan, lower_32_bits(dst_offset));
+		OUT_RING  (chan, stride);
+		OUT_RING  (chan, stride);
+		OUT_RING  (chan, stride);
+		OUT_RING  (chan, height);
+		OUT_RING  (chan, 0x00000101);
+		OUT_RING  (chan, 0x00000000);
+		BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
+		OUT_RING  (chan, 0);
+
+		length -= amount;
+		src_offset += amount;
+		dst_offset += amount;
+	}
+
+	return 0;
+}
+
+int
+nv50_bo_move_init(struct nouveau_channel *chan, u32 handle)
+{
+	int ret = RING_SPACE(chan, 6);
+	if (ret == 0) {
+		BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
+		OUT_RING  (chan, handle);
+		BEGIN_NV04(chan, NvSubCopy, 0x0180, 3);
+		OUT_RING  (chan, chan->drm->ntfy.handle);
+		OUT_RING  (chan, chan->vram.handle);
+		OUT_RING  (chan, chan->vram.handle);
+	}
+
+	return ret;
+}

drivers/gpu/drm/nouveau/nouveau_bo74c1.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_mem.h"
+
+int
+nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	int ret = RING_SPACE(chan, 7);
+	if (ret == 0) {
+		BEGIN_NV04(chan, NvSubCopy, 0x0304, 6);
+		OUT_RING  (chan, new_reg->num_pages << PAGE_SHIFT);
+		OUT_RING  (chan, upper_32_bits(mem->vma[0].addr));
+		OUT_RING  (chan, lower_32_bits(mem->vma[0].addr));
+		OUT_RING  (chan, upper_32_bits(mem->vma[1].addr));
+		OUT_RING  (chan, lower_32_bits(mem->vma[1].addr));
+		OUT_RING  (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */);
+	}
+	return ret;
+}

drivers/gpu/drm/nouveau/nouveau_bo85b5.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_mem.h"
+
+/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing
+ *     code with KeplerDmaCopyA.
+ */
+
+int
+nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	u64 src_offset = mem->vma[0].addr;
+	u64 dst_offset = mem->vma[1].addr;
+	u32 page_count = new_reg->num_pages;
+	int ret;
+
+	page_count = new_reg->num_pages;
+	while (page_count) {
+		int line_count = (page_count > 8191) ? 8191 : page_count;
+
+		ret = RING_SPACE(chan, 11);
+		if (ret)
+			return ret;
+
+		BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
+		OUT_RING  (chan, upper_32_bits(src_offset));
+		OUT_RING  (chan, lower_32_bits(src_offset));
+		OUT_RING  (chan, upper_32_bits(dst_offset));
+		OUT_RING  (chan, lower_32_bits(dst_offset));
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, line_count);
+		BEGIN_NV04(chan, NvSubCopy, 0x0300, 1);
+		OUT_RING  (chan, 0x00000110);
+
+		page_count -= line_count;
+		src_offset += (PAGE_SIZE * line_count);
+		dst_offset += (PAGE_SIZE * line_count);
+	}
+
+	return 0;
+}

drivers/gpu/drm/nouveau/nouveau_bo9039.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_mem.h"
+
+int
+nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	u64 src_offset = mem->vma[0].addr;
+	u64 dst_offset = mem->vma[1].addr;
+	u32 page_count = new_reg->num_pages;
+	int ret;
+
+	page_count = new_reg->num_pages;
+	while (page_count) {
+		int line_count = (page_count > 2047) ? 2047 : page_count;
+
+		ret = RING_SPACE(chan, 12);
+		if (ret)
+			return ret;
+
+		BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2);
+		OUT_RING  (chan, upper_32_bits(dst_offset));
+		OUT_RING  (chan, lower_32_bits(dst_offset));
+		BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6);
+		OUT_RING  (chan, upper_32_bits(src_offset));
+		OUT_RING  (chan, lower_32_bits(src_offset));
+		OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
+		OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
+		OUT_RING  (chan, PAGE_SIZE); /* line_length */
+		OUT_RING  (chan, line_count);
+		BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
+		OUT_RING  (chan, 0x00100110);
+
+		page_count -= line_count;
+		src_offset += (PAGE_SIZE * line_count);
+		dst_offset += (PAGE_SIZE * line_count);
+	}
+
+	return 0;
+}
+
+int
+nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
+{
+	int ret = RING_SPACE(chan, 2);
+	if (ret == 0) {
+		BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
+		OUT_RING  (chan, handle);
+	}
+	return ret;
+}

drivers/gpu/drm/nouveau/nouveau_bo90b5.c

+/*
+ * Copyright 2020 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.
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_mem.h"
+
+/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing
+ *     code with KeplerDmaCopyA.
+ */
+
+int
+nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	u64 src_offset = mem->vma[0].addr;
+	u64 dst_offset = mem->vma[1].addr;
+	u32 page_count = new_reg->num_pages;
+	int ret;
+
+	page_count = new_reg->num_pages;
+	while (page_count) {
+		int line_count = (page_count > 8191) ? 8191 : page_count;
+
+		ret = RING_SPACE(chan, 11);
+		if (ret)
+			return ret;
+
+		BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8);
+		OUT_RING  (chan, upper_32_bits(src_offset));
+		OUT_RING  (chan, lower_32_bits(src_offset));
+		OUT_RING  (chan, upper_32_bits(dst_offset));
+		OUT_RING  (chan, lower_32_bits(dst_offset));
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, line_count);
+		BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
+		OUT_RING  (chan, 0x00000110);
+
+		page_count -= line_count;
+		src_offset += (PAGE_SIZE * line_count);
+		dst_offset += (PAGE_SIZE * line_count);
+	}
+
+	return 0;
+}

drivers/gpu/drm/nouveau/nouveau_boa0b5.c

+/*
+ * Copyright 2007 Dave Airlied
+ * 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: Dave Airlied <airlied@linux.ie>
+ *	    Ben Skeggs   <darktama@iinet.net.au>
+ *	    Jeremy Kolb  <jkolb@brandeis.edu>
+ */
+#include "nouveau_bo.h"
+#include "nouveau_dma.h"
+#include "nouveau_mem.h"
+
+int
+nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+		  struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
+{
+	struct nouveau_mem *mem = nouveau_mem(old_reg);
+	int ret = RING_SPACE(chan, 10);
+	if (ret == 0) {
+		BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8);
+		OUT_RING  (chan, upper_32_bits(mem->vma[0].addr));
+		OUT_RING  (chan, lower_32_bits(mem->vma[0].addr));
+		OUT_RING  (chan, upper_32_bits(mem->vma[1].addr));
+		OUT_RING  (chan, lower_32_bits(mem->vma[1].addr));
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, PAGE_SIZE);
+		OUT_RING  (chan, new_reg->num_pages);
+		BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386);
+	}
+	return ret;
+}
+
+int
+nve0_bo_move_init(struct nouveau_channel *chan, u32 handle)
+{
+	int ret = RING_SPACE(chan, 2);
+	if (ret == 0) {
+		BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
+		OUT_RING  (chan, handle & 0x0000ffff);
+		FIRE_RING (chan);
+	}
+	return ret;
+}