1 /* 2 * Copyright © 2019 Broadcom 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 24 #ifndef V3D_LIMITS_H 25 #define V3D_LIMITS_H 26 27 /* Number of channels a QPU thread executes in parallel. Also known as 28 * gl_SubGroupSizeARB. 29 */ 30 #define V3D_CHANNELS 16 31 32 #define V3D_MAX_FS_INPUTS 64 33 #define V3D_MAX_GS_INPUTS 64 34 #define V3D_MAX_VS_INPUTS 64 35 #define V3D_MAX_ANY_STAGE_INPUTS MAX3(V3D_MAX_VS_INPUTS, \ 36 V3D_MAX_GS_INPUTS, \ 37 V3D_MAX_FS_INPUTS) 38 39 #define V3D_MAX_TEXTURE_SAMPLERS 24 40 41 #define V3D_MAX_SAMPLES 4 42 43 #define V3D_MAX_DRAW_BUFFERS 8 44 #define V3D_MAX_RENDER_TARGETS(ver) (ver < 71 ? 4 : 8) 45 46 #define V3D_MAX_POINT_SIZE 512.0f 47 #define V3D_MAX_LINE_WIDTH 32 48 49 #define V3D_MAX_BUFFER_RANGE (1 << 30) 50 51 /* Sub-pixel precision bits in the rasterizer */ 52 #define V3D_COORD_SHIFT 6 53 54 /* Size of a cache line */ 55 #define V3D_NON_COHERENT_ATOM_SIZE 256 56 57 /* Minimum alignment for texel buffers */ 58 #define V3D_TMU_TEXEL_ALIGN 64 59 60 #define V3D_MAX_IMAGE_DIMENSION 4096 61 62 /* The HW can do 16384 (15), but we run into hangs when we expose that. Also, 63 * since we are only exposing images up to 4096 pixels per dimension 13 is 64 * all we need. 65 */ 66 #define V3D_MAX_MIP_LEVELS 13 67 68 #define V3D_MAX_ARRAY_LAYERS 2048 69 70 #define V3D_MAX_VERTEX_ATTRIB_DIVISOR 0xffff 71 72 #endif /* V3D_LIMITS_H */ 73