radeon: add surface allocator helper v10

The surface allocator is able to build complete miptree when allocating
surface for r600/r700/evergreen/northern islands GPU family. It also
compute bo size and alignment for render buffer, depth buffer and
scanout buffer.

v2 fix r6xx/r7xx 2D tiling width align computation
v3 add tile split support and fix 1d texture alignment
v4 rework to more properly support compressed format, split surface pixel
   size and surface element size in separate fields
v5 support texture array (still issue on r6xx)
v6 split surface value computation and mipmap tree building, rework eg
   and newer computation
v7 add a check for tile split and 2d tiled
v8 initialize mode value before testing it in all case, reenable
   2D macro tile mode on r6xx for cubemap and array. Fix cubemap
   to force array size to the number of face.
v9 fix handling of stencil buffer on evergreen
v10 on evergreen depth buffer need to have enough room for a stencil
    buffer just after depth one

Signed-off-by: Jerome Glisse <jglisse@redhat.com>

1 files changed, 114 insertions, 0 deletions

diff --git a/radeon/radeon_surface.h b/radeon/radeon_surface.h
new file mode 100644
index 00000000..3e5fbedc
--- /dev/null
+++ b/radeon/radeon_surface.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright © 2011 Red Hat 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 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <jglisse@redhat.com>
+ */
+#ifndef RADEON_SURFACE_H
+#define RADEON_SURFACE_H
+
+/* Note :
+ *
+ * For texture array, the n layer are stored one after the other within each
+ * mipmap level. 0 value for field than can be hint is always valid.
+ */
+
+#define RADEON_SURF_MAX_LEVEL                   32
+
+#define RADEON_SURF_TYPE_MASK                   0xFF
+#define RADEON_SURF_TYPE_SHIFT                  0
+#define     RADEON_SURF_TYPE_1D                     0
+#define     RADEON_SURF_TYPE_2D                     1
+#define     RADEON_SURF_TYPE_3D                     2
+#define     RADEON_SURF_TYPE_CUBEMAP                3
+#define     RADEON_SURF_TYPE_1D_ARRAY               4
+#define     RADEON_SURF_TYPE_2D_ARRAY               5
+#define RADEON_SURF_MODE_MASK                   0xFF
+#define RADEON_SURF_MODE_SHIFT                  8
+#define     RADEON_SURF_MODE_LINEAR                 0
+#define     RADEON_SURF_MODE_LINEAR_ALIGNED         1
+#define     RADEON_SURF_MODE_1D                     2
+#define     RADEON_SURF_MODE_2D                     3
+#define RADEON_SURF_SCANOUT                     (1 << 16)
+#define RADEON_SURF_ZBUFFER                     (1 << 17)
+#define RADEON_SURF_SBUFFER                     (1 << 18)
+
+#define RADEON_SURF_GET(v, field)   (((v) >> RADEON_SURF_ ## field ## _SHIFT) & RADEON_SURF_ ## field ## _MASK)
+#define RADEON_SURF_SET(v, field)   (((v) & RADEON_SURF_ ## field ## _MASK) << RADEON_SURF_ ## field ## _SHIFT)
+#define RADEON_SURF_CLR(v, field)   ((v) & ~(RADEON_SURF_ ## field ## _MASK << RADEON_SURF_ ## field ## _SHIFT))
+
+/* first field up to mode need to match r6 struct so that we can reuse
+ * same function for linear & linear aligned
+ */
+struct radeon_surface_level {
+    uint64_t                    offset;
+    uint64_t                    slice_size;
+    uint32_t                    npix_x;
+    uint32_t                    npix_y;
+    uint32_t                    npix_z;
+    uint32_t                    nblk_x;
+    uint32_t                    nblk_y;
+    uint32_t                    nblk_z;
+    uint32_t                    pitch_bytes;
+    uint32_t                    mode;
+};
+
+struct radeon_surface {
+    uint32_t                    npix_x;
+    uint32_t                    npix_y;
+    uint32_t                    npix_z;
+    uint32_t                    nblk_x;
+    uint32_t                    nblk_y;
+    uint32_t                    nblk_z;
+    uint32_t                    array_size;
+    uint32_t                    last_level;
+    uint32_t                    bpe;
+    uint32_t                    nsamples;
+    uint32_t                    flags;
+    /* Following is updated/fill by the allocator. It's allowed to
+     * set some of the value but they are use as hint and can be
+     * overridden (things lile bankw/bankh on evergreen for
+     * instance).
+     */
+    uint64_t                    bo_size;
+    uint64_t                    bo_alignment;
+    /* apply to eg */
+    uint32_t                    bankw;
+    uint32_t                    bankh;
+    uint32_t                    mtilea;
+    uint32_t                    tile_split;
+    uint32_t                    stencil_tile_split;
+    uint64_t                    stencil_offset;
+    struct radeon_surface_level level[RADEON_SURF_MAX_LEVEL];
+};
+
+struct radeon_surface_manager *radeon_surface_manager_new(int fd);
+void radeon_surface_manager_free(struct radeon_surface_manager *surf_man);
+int radeon_surface_init(struct radeon_surface_manager *surf_man,
+                        struct radeon_surface *surf);
+int radeon_surface_best(struct radeon_surface_manager *surf_man,
+                        struct radeon_surface *surf);
+
+#endif