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-rw-r--r--include/drm/ttm/ttm_placement.h95
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diff --git a/include/drm/ttm/ttm_placement.h b/include/drm/ttm/ttm_placement.h
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+/**************************************************************************
+ *
+ * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
+ * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS 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: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ */
+
+#ifndef _TTM_PLACEMENT_H_
+#define _TTM_PLACEMENT_H_
+/*
+ * Memory regions for data placement.
+ */
+
+#define TTM_PL_SYSTEM 0
+#define TTM_PL_TT 1
+#define TTM_PL_VRAM 2
+#define TTM_PL_PRIV0 3
+#define TTM_PL_PRIV1 4
+#define TTM_PL_PRIV2 5
+#define TTM_PL_PRIV3 6
+#define TTM_PL_PRIV4 7
+#define TTM_PL_PRIV5 8
+#define TTM_PL_SWAPPED 15
+
+#define TTM_PL_FLAG_SYSTEM (1 << TTM_PL_SYSTEM)
+#define TTM_PL_FLAG_TT (1 << TTM_PL_TT)
+#define TTM_PL_FLAG_VRAM (1 << TTM_PL_VRAM)
+#define TTM_PL_FLAG_PRIV0 (1 << TTM_PL_PRIV0)
+#define TTM_PL_FLAG_PRIV1 (1 << TTM_PL_PRIV1)
+#define TTM_PL_FLAG_PRIV2 (1 << TTM_PL_PRIV2)
+#define TTM_PL_FLAG_PRIV3 (1 << TTM_PL_PRIV3)
+#define TTM_PL_FLAG_PRIV4 (1 << TTM_PL_PRIV4)
+#define TTM_PL_FLAG_PRIV5 (1 << TTM_PL_PRIV5)
+#define TTM_PL_FLAG_SWAPPED (1 << TTM_PL_SWAPPED)
+#define TTM_PL_MASK_MEM 0x0000FFFF
+
+/*
+ * Other flags that affects data placement.
+ * TTM_PL_FLAG_CACHED indicates cache-coherent mappings
+ * if available.
+ * TTM_PL_FLAG_SHARED means that another application may
+ * reference the buffer.
+ * TTM_PL_FLAG_NO_EVICT means that the buffer may never
+ * be evicted to make room for other buffers.
+ * TTM_PL_FLAG_TOPDOWN requests to be placed from the
+ * top of the memory area, instead of the bottom.
+ */
+
+#define TTM_PL_FLAG_CACHED (1 << 16)
+#define TTM_PL_FLAG_UNCACHED (1 << 17)
+#define TTM_PL_FLAG_WC (1 << 18)
+#define TTM_PL_FLAG_SHARED (1 << 20)
+#define TTM_PL_FLAG_NO_EVICT (1 << 21)
+#define TTM_PL_FLAG_TOPDOWN (1 << 22)
+
+#define TTM_PL_MASK_CACHING (TTM_PL_FLAG_CACHED | \
+ TTM_PL_FLAG_UNCACHED | \
+ TTM_PL_FLAG_WC)
+
+#define TTM_PL_MASK_MEMTYPE (TTM_PL_MASK_MEM | TTM_PL_MASK_CACHING)
+
+/*
+ * Access flags to be used for CPU- and GPU- mappings.
+ * The idea is that the TTM synchronization mechanism will
+ * allow concurrent READ access and exclusive write access.
+ * Currently GPU- and CPU accesses are exclusive.
+ */
+
+#define TTM_ACCESS_READ (1 << 0)
+#define TTM_ACCESS_WRITE (1 << 1)
+
+#endif