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>

1 files changed, 100 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo0039.c b/drivers/gpu/drm/nouveau/nouveau_bo0039.c
new file mode 100644
index 000000000000..d5e9a200a64c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_bo0039.c
@@ -0,0 +1,100 @@
+/*
+ * 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;
+}