| /* Copyright 1993-2016 NVIDIA Corporation. All rights reserved. | |
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| * The source code and/or documentation ("Licensed Deliverables") are | |
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| */ | |
| _CG_BEGIN_NAMESPACE | |
| namespace details { | |
| template <unsigned int RegId> | |
| _CG_QUALIFIER unsigned int load_env_reg() { | |
| // Abort by default | |
| _CG_ABORT(); | |
| return 0; | |
| } | |
| template <unsigned int HiReg, unsigned int LoReg> | |
| _CG_QUALIFIER unsigned long long load_env_reg64() { | |
| unsigned long long registerLo = load_env_reg<LoReg>(); | |
| unsigned long long registerHi = load_env_reg<HiReg>(); | |
| return (registerHi << 32) | registerLo; | |
| } | |
| // inline PTX for accessing registers requires an immediate for the special reg | |
| template <> _CG_QUALIFIER unsigned int load_env_reg<NUMBER>() { \ | |
| unsigned int r; \ | |
| asm ("mov.u32 %0, %%envreg" #NUMBER ";" : "=r"(r)); \ | |
| return r; \ | |
| } | |
| // Instantiate loaders for registers used | |
| LOAD_ENVREG(0); | |
| LOAD_ENVREG(1); | |
| LOAD_ENVREG(2); | |
| struct grid_workspace { | |
| unsigned int wsSize; | |
| unsigned int barrier; | |
| }; | |
| _CG_QUALIFIER grid_workspace* get_grid_workspace() { | |
| unsigned long long gridWsAbiAddress = load_env_reg64<1, 2>(); | |
| // Interpret the address from envreg 1 and 2 as the driver's grid workspace | |
| return (reinterpret_cast<grid_workspace*>(gridWsAbiAddress)); | |
| } | |
| } | |
| _CG_END_NAMESPACE | |