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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/uapi/drm/omap_drm.h
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@@ -38,20 +38,20 @@
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 	__u64 value;			/* in (set_param), out (get_param) */
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 };
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-#define OMAP_BO_SCANOUT		0x00000001	/* scanout capable (phys contiguous) */
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-#define OMAP_BO_CACHE_MASK	0x00000006	/* cache type mask, see cache modes */
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-#define OMAP_BO_TILED_MASK	0x00000f00	/* tiled mapping mask, see tiled modes */
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+/* Scanout buffer, consumable by DSS */
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+#define OMAP_BO_SCANOUT		0x00000001
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-/* cache modes */
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-#define OMAP_BO_CACHED		0x00000000	/* default */
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-#define OMAP_BO_WC		0x00000002	/* write-combine */
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-#define OMAP_BO_UNCACHED	0x00000004	/* strongly-ordered (uncached) */
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+/* Buffer CPU caching mode: cached, write-combining or uncached. */
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+#define OMAP_BO_CACHED		0x00000000
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+#define OMAP_BO_WC		0x00000002
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+#define OMAP_BO_UNCACHED	0x00000004
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+#define OMAP_BO_CACHE_MASK	0x00000006
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-/* tiled modes */
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+/* Use TILER for the buffer. The TILER container unit can be 8, 16 or 32 bits. */
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 #define OMAP_BO_TILED_8		0x00000100
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 #define OMAP_BO_TILED_16	0x00000200
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 #define OMAP_BO_TILED_32	0x00000300
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-#define OMAP_BO_TILED		(OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32)
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+#define OMAP_BO_TILED_MASK	0x00000f00
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 union omap_gem_size {
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 	__u32 bytes;		/* (for non-tiled formats) */