| /************************************************************************** |
| * |
| * Copyright 2010-2012 VMware, Inc. |
| * 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. |
| * |
| **************************************************************************/ |
| |
| |
| #ifndef LP_BLD_LIMITS_H_ |
| #define LP_BLD_LIMITS_H_ |
| |
| |
| #include <limits.h> |
| |
| #include "pipe/p_state.h" |
| #include "pipe/p_defines.h" |
| |
| |
| /* |
| * TGSI translation limits. |
| * |
| * Some are slightly above SM 3.0 requirements to give some wiggle room to |
| * the gallium frontends. |
| */ |
| |
| #define LP_MAX_TGSI_TEMPS 4096 |
| |
| #define LP_MAX_TGSI_ADDRS 16 |
| |
| #define LP_MAX_TGSI_IMMEDIATES 4096 |
| |
| #define LP_MAX_TGSI_CONSTS 4096 |
| |
| #define LP_MAX_TGSI_CONST_BUFFERS 16 |
| |
| #define LP_MAX_TGSI_CONST_BUFFER_SIZE (LP_MAX_TGSI_CONSTS * sizeof(float[4])) |
| |
| #define LP_MAX_TGSI_SHADER_BUFFERS 16 |
| |
| #define LP_MAX_TGSI_SHADER_BUFFER_SIZE (1 << 27) |
| |
| #define LP_MAX_TGSI_SHADER_IMAGES 16 |
| |
| /* |
| * For quick access we cache registers in statically |
| * allocated arrays. Here we define the maximum size |
| * for those arrays. |
| */ |
| #define LP_MAX_INLINED_TEMPS 256 |
| |
| #define LP_MAX_INLINED_IMMEDIATES 256 |
| |
| /** |
| * Maximum control flow nesting |
| * |
| * SM4.0 requires 64 (per subroutine actually, subroutine nesting itself is 32) |
| * SM3.0 requires 24 (most likely per subroutine too) |
| * add 2 more (some translation could add one more) |
| */ |
| #define LP_MAX_TGSI_NESTING 66 |
| |
| /** |
| * Maximum iterations before loop termination |
| * Shared between every loop in a TGSI shader |
| */ |
| #define LP_MAX_TGSI_LOOP_ITERATIONS 65535 |
| |
| |
| /** |
| * Some of these limits are actually infinite (i.e., only limited by available |
| * memory), however advertising INT_MAX would cause some test problems to |
| * actually try to allocate the maximum and run out of memory and crash. So |
| * stick with something reasonable here. |
| */ |
| static inline int |
| gallivm_get_shader_param(enum pipe_shader_cap param) |
| { |
| switch(param) { |
| case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: |
| case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: |
| return 1 * 1024 * 1024; |
| case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: |
| return LP_MAX_TGSI_NESTING; |
| case PIPE_SHADER_CAP_MAX_INPUTS: |
| return 32; |
| case PIPE_SHADER_CAP_MAX_OUTPUTS: |
| return 32; |
| case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE: |
| return LP_MAX_TGSI_CONST_BUFFER_SIZE; |
| case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: |
| return PIPE_MAX_CONSTANT_BUFFERS; |
| case PIPE_SHADER_CAP_MAX_TEMPS: |
| return LP_MAX_TGSI_TEMPS; |
| case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: |
| return 1; |
| case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: |
| case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: |
| case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: |
| case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: |
| return 1; |
| case PIPE_SHADER_CAP_SUBROUTINES: |
| return 1; |
| case PIPE_SHADER_CAP_INTEGERS: |
| return 1; |
| case PIPE_SHADER_CAP_INT64_ATOMICS: |
| case PIPE_SHADER_CAP_FP16: |
| case PIPE_SHADER_CAP_FP16_DERIVATIVES: |
| case PIPE_SHADER_CAP_INT16: |
| case PIPE_SHADER_CAP_GLSL_16BIT_CONSTS: |
| return 0; |
| case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: |
| return PIPE_MAX_SAMPLERS; |
| case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS: |
| return PIPE_MAX_SHADER_SAMPLER_VIEWS; |
| case PIPE_SHADER_CAP_PREFERRED_IR: |
| return PIPE_SHADER_IR_TGSI; |
| case PIPE_SHADER_CAP_SUPPORTED_IRS: |
| return (1 << PIPE_SHADER_IR_TGSI) | (1 << PIPE_SHADER_IR_NIR); |
| case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE: |
| return 1; |
| case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED: |
| case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED: |
| case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD: |
| case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS: |
| case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS: |
| case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS: |
| return 0; |
| case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT: |
| return 32; |
| case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS: |
| return LP_MAX_TGSI_SHADER_BUFFERS; |
| case PIPE_SHADER_CAP_MAX_SHADER_IMAGES: |
| return LP_MAX_TGSI_SHADER_IMAGES; |
| } |
| /* if we get here, we missed a shader cap above (and should have seen |
| * a compiler warning.) |
| */ |
| return 0; |
| } |
| |
| |
| #endif /* LP_BLD_LIMITS_H_ */ |