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      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_SAMPLED_IMAGES 16
     43 #define MAX_STORAGE_IMAGES 4
     44 #define MAX_INPUT_ATTACHMENTS 4
     45 
     46 #define MAX_UNIFORM_BUFFERS 12
     47 #define MAX_STORAGE_BUFFERS 8
     48 
     49 #define MAX_DYNAMIC_UNIFORM_BUFFERS 8
     50 #define MAX_DYNAMIC_STORAGE_BUFFERS 4
     51 #define MAX_DYNAMIC_BUFFERS (MAX_DYNAMIC_UNIFORM_BUFFERS + \
     52                              MAX_DYNAMIC_STORAGE_BUFFERS)
     53 
     54 #define MAX_RENDER_TARGETS 4
     55 
     56 #define MAX_MULTIVIEW_VIEW_COUNT 16
     57 
     58 /* These are tunable parameters in the HW design, but all the V3D
     59  * implementations agree.
     60  */
     61 #define V3D_UIFCFG_BANKS 8
     62 #define V3D_UIFCFG_PAGE_SIZE 4096
     63 #define V3D_UIFCFG_XOR_VALUE (1 << 4)
     64 #define V3D_PAGE_CACHE_SIZE (V3D_UIFCFG_PAGE_SIZE * V3D_UIFCFG_BANKS)
     65 #define V3D_UBLOCK_SIZE 64
     66 #define V3D_UIFBLOCK_SIZE (4 * V3D_UBLOCK_SIZE)
     67 #define V3D_UIFBLOCK_ROW_SIZE (4 * V3D_UIFBLOCK_SIZE)
     68 
     69 #define PAGE_UB_ROWS (V3D_UIFCFG_PAGE_SIZE / V3D_UIFBLOCK_ROW_SIZE)
     70 #define PAGE_UB_ROWS_TIMES_1_5 ((PAGE_UB_ROWS * 3) >> 1)
     71 #define PAGE_CACHE_UB_ROWS (V3D_PAGE_CACHE_SIZE / V3D_UIFBLOCK_ROW_SIZE)
     72 #define PAGE_CACHE_MINUS_1_5_UB_ROWS (PAGE_CACHE_UB_ROWS - PAGE_UB_ROWS_TIMES_1_5)
     73 
     74 #endif /* V3DV_LIMITS_H */
     75