v3dv_limits.h

/*
 * Copyright © 2020 Raspberry Pi
 *
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS 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.
 */
#ifndef V3DV_LIMITS_H
#define V3DV_LIMITS_H

#define NSEC_PER_SEC 1000000000ull

/* From vulkan spec "If the multiple viewports feature is not enabled,
 * scissorCount must be 1", ditto for viewportCount. For now we don't support
 * that feature.
 */
#define MAX_VIEWPORTS 1
#define MAX_SCISSORS  1

#define MAX_VBS 16
#define MAX_VERTEX_ATTRIBS 16

#define MAX_SETS 16

#define MAX_PUSH_CONSTANTS_SIZE 128

#define MAX_SAMPLED_IMAGES 16
#define MAX_STORAGE_IMAGES 4
#define MAX_INPUT_ATTACHMENTS 4

#define MAX_UNIFORM_BUFFERS 12
#define MAX_STORAGE_BUFFERS 8

#define MAX_DYNAMIC_UNIFORM_BUFFERS 8
#define MAX_DYNAMIC_STORAGE_BUFFERS 4
#define MAX_DYNAMIC_BUFFERS (MAX_DYNAMIC_UNIFORM_BUFFERS + \
                             MAX_DYNAMIC_STORAGE_BUFFERS)

#define MAX_RENDER_TARGETS 4

/* These are tunable parameters in the HW design, but all the V3D
 * implementations agree.
 */
#define V3D_UIFCFG_BANKS 8
#define V3D_UIFCFG_PAGE_SIZE 4096
#define V3D_UIFCFG_XOR_VALUE (1 << 4)
#define V3D_PAGE_CACHE_SIZE (V3D_UIFCFG_PAGE_SIZE * V3D_UIFCFG_BANKS)
#define V3D_UBLOCK_SIZE 64
#define V3D_UIFBLOCK_SIZE (4 * V3D_UBLOCK_SIZE)
#define V3D_UIFBLOCK_ROW_SIZE (4 * V3D_UIFBLOCK_SIZE)

#define PAGE_UB_ROWS (V3D_UIFCFG_PAGE_SIZE / V3D_UIFBLOCK_ROW_SIZE)
#define PAGE_UB_ROWS_TIMES_1_5 ((PAGE_UB_ROWS * 3) >> 1)
#define PAGE_CACHE_UB_ROWS (V3D_PAGE_CACHE_SIZE / V3D_UIFBLOCK_ROW_SIZE)
#define PAGE_CACHE_MINUS_1_5_UB_ROWS (PAGE_CACHE_UB_ROWS - PAGE_UB_ROWS_TIMES_1_5)

#endif /* V3DV_LIMITS_H */