Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/include/drm/ttm/ttm_placement.h b/include/drm/ttm/ttm_placement.h
new file mode 100644
index 0000000000..8074d0f6ca
--- /dev/null
+++ b/include/drm/ttm/ttm_placement.h
@@ -0,0 +1,101 @@
+/**************************************************************************
+ *
+ * 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_
+
+#include <linux/types.h>
+
+/*
+ * Memory regions for data placement.
+ *
+ * Buffers placed in TTM_PL_SYSTEM are considered under TTMs control and can
+ * be swapped out whenever TTMs thinks it is a good idea.
+ * In cases where drivers would like to use TTM_PL_SYSTEM as a valid
+ * placement they need to be able to handle the issues that arise due to the
+ * above manually.
+ *
+ * For BO's which reside in system memory but for which the accelerator
+ * requires direct access (i.e. their usage needs to be synchronized
+ * between the CPU and accelerator via fences) a new, driver private
+ * placement that can handle such scenarios is a good idea.
+ */
+
+#define TTM_PL_SYSTEM           0
+#define TTM_PL_TT               1
+#define TTM_PL_VRAM             2
+#define TTM_PL_PRIV             3
+
+/*
+ * TTM_PL_FLAG_TOPDOWN requests to be placed from the
+ * top of the memory area, instead of the bottom.
+ */
+
+#define TTM_PL_FLAG_CONTIGUOUS  (1 << 0)
+#define TTM_PL_FLAG_TOPDOWN     (1 << 1)
+
+/* For multihop handling */
+#define TTM_PL_FLAG_TEMPORARY   (1 << 2)
+
+/**
+ * struct ttm_place
+ *
+ * @fpfn:	first valid page frame number to put the object
+ * @lpfn:	last valid page frame number to put the object
+ * @mem_type:	One of TTM_PL_* where the resource should be allocated from.
+ * @flags:	memory domain and caching flags for the object
+ *
+ * Structure indicating a possible place to put an object.
+ */
+struct ttm_place {
+	unsigned	fpfn;
+	unsigned	lpfn;
+	uint32_t	mem_type;
+	uint32_t	flags;
+};
+
+/**
+ * struct ttm_placement
+ *
+ * @num_placement:	number of preferred placements
+ * @placement:		preferred placements
+ * @num_busy_placement:	number of preferred placements when need to evict buffer
+ * @busy_placement:	preferred placements when need to evict buffer
+ *
+ * Structure indicating the placement you request for an object.
+ */
+struct ttm_placement {
+	unsigned		num_placement;
+	const struct ttm_place	*placement;
+	unsigned		num_busy_placement;
+	const struct ttm_place	*busy_placement;
+};
+
+#endif