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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| // Copyright 2024 RISC Zero, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| #include <iostream> | ||
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| #include "zirgen/circuit/rv32im/v2/platform/constants.h" | ||
| #include "zirgen/circuit/rv32im/v2/run/run.h" | ||
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| using namespace zirgen::rv32im_v2; | ||
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| const std::string kernelName = "zirgen/circuit/rv32im/v2/test/test_io_kernel"; | ||
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| // Allows reads of any size, fill with a pattern to check in kernel | ||
| struct RandomReadSizeHandler : public HostIoHandler { | ||
| uint32_t write(uint32_t fd, const uint8_t* data, uint32_t len) override { return len; } | ||
| uint32_t read(uint32_t fd, uint8_t* data, uint32_t len) override { | ||
| std::cout << "DOING READ OF SIZE " << len << "\n"; | ||
| for(size_t i = 0; i < len; i++) { | ||
| data[i] = i; | ||
| } | ||
| return len; | ||
| } | ||
| }; | ||
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| int main() { | ||
| size_t cycles = 100000; | ||
| RandomReadSizeHandler io; | ||
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| // Load image | ||
| auto image = MemoryImage::fromRawElf(kernelName); | ||
| // Do executions | ||
| auto segments = execute(image, io, cycles, cycles); | ||
| // Do 'run' (preflight + expansion) | ||
| for (const auto& segment : segments) { | ||
| std::cout << "HEY, doing a segment!\n"; | ||
| runSegment(segment, cycles + 1000); | ||
| } | ||
| std::cout << "What a fine day\n"; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| // Copyright 2024 RISC Zero, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| #include <stdint.h> | ||
| #include <sys/errno.h> | ||
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| #include "zirgen/circuit/rv32im/v2/platform/constants.h" | ||
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| using namespace zirgen::rv32im_v2; | ||
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| inline void die() { | ||
| asm("fence\n"); | ||
| } | ||
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| // Implement machine mode ECALLS | ||
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| inline void terminate(uint32_t val) { | ||
| register uintptr_t a0 asm("a0") = val; | ||
| register uintptr_t a7 asm("a7") = 0; | ||
| asm volatile("ecall\n" | ||
| : // no outputs | ||
| : "r"(a0), "r"(a7) // inputs | ||
| : // no clobbers | ||
| ); | ||
| } | ||
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| inline uint32_t host_read(uint32_t fd, uint32_t buf, uint32_t len) { | ||
| register uintptr_t a0 asm("a0") = fd; | ||
| register uintptr_t a1 asm("a1") = buf; | ||
| register uintptr_t a2 asm("a2") = len; | ||
| register uintptr_t a7 asm("a7") = 1; | ||
| asm volatile("ecall\n" | ||
| : "+r"(a0) // outputs | ||
| : "r"(a0), "r"(a1), "r"(a2), "r"(a7) // inputs | ||
| : // no clobbers | ||
| ); | ||
| return a0; | ||
| } | ||
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| inline uint32_t host_write(uint32_t fd, uint32_t buf, uint32_t len) { | ||
| register uintptr_t a0 asm("a0") = fd; | ||
| register uintptr_t a1 asm("a1") = buf; | ||
| register uintptr_t a2 asm("a2") = len; | ||
| register uintptr_t a7 asm("a7") = 2; | ||
| asm volatile("ecall\n" | ||
| : "+r"(a0) // outputs | ||
| : "r"(a0), "r"(a1), "r"(a2), "r"(a7) // inputs | ||
| : // no clobbers | ||
| ); | ||
| return a0; | ||
| } | ||
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| constexpr uint32_t sizes[11] = { 0, 1, 2, 3, 4, 5, 7, 13, 19, 40, 101 }; | ||
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| void test_multi_read() { | ||
| uint8_t buf[200]; | ||
| // Try all 4 alignments | ||
| for (size_t i = 0; i < 4; i++) { | ||
| // Try a variety of size | ||
| for (size_t j = 0; j < 11; j++) { | ||
| host_read(0, (uint32_t) (buf + i), sizes[j]); | ||
| for (size_t k = 0; k < sizes[j]; k++) { | ||
| if (buf[i + k] != k) { die(); } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| extern "C" void start() { | ||
| test_multi_read(); | ||
| terminate(0); | ||
| } |