1 /* 2 * Copyright © 2020 Raspberry Pi 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 */ 23 #ifndef V3DV_LIMITS_H 24 #define V3DV_LIMITS_H 25 26 #define NSEC_PER_SEC 1000000000ull 27 28 /* From vulkan spec "If the multiple viewports feature is not enabled, 29 * scissorCount must be 1", ditto for viewportCount. For now we don't support 30 * that feature. 31 */ 32 #define MAX_VIEWPORTS 1 33 #define MAX_SCISSORS 1 34 35 #define MAX_VBS 16 36 #define MAX_VERTEX_ATTRIBS 16 37 38 #define MAX_SETS 16 39 40 #define MAX_PUSH_CONSTANTS_SIZE 128 41 42 #define MAX_DYNAMIC_UNIFORM_BUFFERS 16 43 #define MAX_DYNAMIC_STORAGE_BUFFERS 8 44 #define MAX_DYNAMIC_BUFFERS \ 45 (MAX_DYNAMIC_UNIFORM_BUFFERS + MAX_DYNAMIC_STORAGE_BUFFERS) 46 47 48 /* These are tunable parameters in the HW design, but all the V3D 49 * implementations agree. 50 */ 51 #define VC5_UIFCFG_BANKS 8 52 #define VC5_UIFCFG_PAGE_SIZE 4096 53 #define VC5_UIFCFG_XOR_VALUE (1 << 4) 54 #define VC5_PAGE_CACHE_SIZE (VC5_UIFCFG_PAGE_SIZE * VC5_UIFCFG_BANKS) 55 #define VC5_UBLOCK_SIZE 64 56 #define VC5_UIFBLOCK_SIZE (4 * VC5_UBLOCK_SIZE) 57 #define VC5_UIFBLOCK_ROW_SIZE (4 * VC5_UIFBLOCK_SIZE) 58 59 #define PAGE_UB_ROWS (VC5_UIFCFG_PAGE_SIZE / VC5_UIFBLOCK_ROW_SIZE) 60 #define PAGE_UB_ROWS_TIMES_1_5 ((PAGE_UB_ROWS * 3) >> 1) 61 #define PAGE_CACHE_UB_ROWS (VC5_PAGE_CACHE_SIZE / VC5_UIFBLOCK_ROW_SIZE) 62 #define PAGE_CACHE_MINUS_1_5_UB_ROWS (PAGE_CACHE_UB_ROWS - PAGE_UB_ROWS_TIMES_1_5) 63 64 65 #endif /* V3DV_LIMITS_H */ 66