Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / omapdrm / omap_dmm_tiler.h

diff --git a/kernel/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h b/kernel/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h
new file mode 100644 (file)
index 0000000..e83c783
--- /dev/null
+++ b/kernel/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h
@@ -0,0 +1,142 @@
+/*
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Rob Clark <rob@ti.com>
+ *         Andy Gross <andy.gross@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef OMAP_DMM_TILER_H
+#define OMAP_DMM_TILER_H
+
+#include "omap_drv.h"
+#include "tcm.h"
+
+enum tiler_fmt {
+       TILFMT_8BIT = 0,
+       TILFMT_16BIT,
+       TILFMT_32BIT,
+       TILFMT_PAGE,
+       TILFMT_NFORMATS
+};
+
+struct pat_area {
+       u32 x0:8;
+       u32 y0:8;
+       u32 x1:8;
+       u32 y1:8;
+};
+
+struct tiler_block {
+       struct list_head alloc_node;    /* node for global block list */
+       struct tcm_area area;           /* area */
+       enum tiler_fmt fmt;             /* format */
+};
+
+/* bits representing the same slot in DMM-TILER hw-block */
+#define SLOT_WIDTH_BITS         6
+#define SLOT_HEIGHT_BITS        6
+
+/* bits reserved to describe coordinates in DMM-TILER hw-block */
+#define CONT_WIDTH_BITS         14
+#define CONT_HEIGHT_BITS        13
+
+/* calculated constants */
+#define TILER_PAGE              (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
+#define TILER_WIDTH             (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
+#define TILER_HEIGHT            (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
+
+/*
+Table 15-11. Coding and Description of TILER Orientations
+S Y X  Description                             Alternate description
+0 0 0  0-degree view                           Natural view
+0 0 1  0-degree view with vertical mirror      180-degree view with horizontal mirror
+0 1 0  0-degree view with horizontal mirror    180-degree view with vertical mirror
+0 1 1  180-degree view
+1 0 0  90-degree view with vertical mirror     270-degree view with horizontal mirror
+1 0 1  270-degree view
+1 1 0  90-degree view
+1 1 1  90-degree view with horizontal mirror   270-degree view with vertical mirror
+ */
+#define MASK_XY_FLIP           (1 << 31)
+#define MASK_Y_INVERT          (1 << 30)
+#define MASK_X_INVERT          (1 << 29)
+#define SHIFT_ACC_MODE         27
+#define MASK_ACC_MODE          3
+
+#define MASK(bits) ((1 << (bits)) - 1)
+
+#define TILVIEW_8BIT    0x60000000u
+#define TILVIEW_16BIT   (TILVIEW_8BIT  + VIEW_SIZE)
+#define TILVIEW_32BIT   (TILVIEW_16BIT + VIEW_SIZE)
+#define TILVIEW_PAGE    (TILVIEW_32BIT + VIEW_SIZE)
+#define TILVIEW_END     (TILVIEW_PAGE  + VIEW_SIZE)
+
+/* create tsptr by adding view orientation and access mode */
+#define TIL_ADDR(x, orient, a)\
+       ((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE))
+
+#ifdef CONFIG_DEBUG_FS
+int tiler_map_show(struct seq_file *s, void *arg);
+#endif
+
+/* pin/unpin */
+int tiler_pin(struct tiler_block *block, struct page **pages,
+               uint32_t npages, uint32_t roll, bool wait);
+int tiler_unpin(struct tiler_block *block);
+
+/* reserve/release */
+struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h,
+                               uint16_t align);
+struct tiler_block *tiler_reserve_1d(size_t size);
+int tiler_release(struct tiler_block *block);
+
+/* utilities */
+dma_addr_t tiler_ssptr(struct tiler_block *block);
+dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient,
+               uint32_t x, uint32_t y);
+uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient);
+size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h);
+size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h);
+void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h);
+uint32_t tiler_get_cpu_cache_flags(void);
+bool dmm_is_available(void);
+
+extern struct platform_driver omap_dmm_driver;
+
+/* GEM bo flags -> tiler fmt */
+static inline enum tiler_fmt gem2fmt(uint32_t flags)
+{
+       switch (flags & OMAP_BO_TILED) {
+       case OMAP_BO_TILED_8:
+               return TILFMT_8BIT;
+       case OMAP_BO_TILED_16:
+               return TILFMT_16BIT;
+       case OMAP_BO_TILED_32:
+               return TILFMT_32BIT;
+       default:
+               return TILFMT_PAGE;
+       }
+}
+
+static inline bool validfmt(enum tiler_fmt fmt)
+{
+       switch (fmt) {
+       case TILFMT_8BIT:
+       case TILFMT_16BIT:
+       case TILFMT_32BIT:
+       case TILFMT_PAGE:
+               return true;
+       default:
+               return false;
+       }
+}
+
+#endif