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video_core: Implement an arm64 shader-jit backend (#7002)
* externals: Add oaksim submodule Used for emitting ARM64 assembly * common: Implement aarch64 ABI Utilize oaknut to implement a stack frame. * tests: Allow shader-jit tests for x64 and a64 Run the shader-jit tests for both x86_64 and arm64 targets * video_core: Initialize arm64 shader-jit backend Passes all current unit tests! * shader_jit_a64: protect/unprotect memory when jit-ing Required on MacOS. Memory needs to be fully unprotected and then re-protected when writing or there will be memory access errors on MacOS. * shader_jit_a64: Fix ARM64-Imm overflow These conditionals were throwing exceptions since the immediate values were overflowing the available space in the `EOR` instructions. Instead they are generated from `MOV` and then `EOR`-ed after. * shader_jit_a64: Fix Geometry shader conditional * shader_jit_a64: Replace `ADRL` with `MOVP2R` Fixes some immediate-generation exceptions. * common/aarch64: Fix CallFarFunction * shader_jit_a64: Optimize `SantitizedMul` Co-authored-by: merryhime <merryhime@users.noreply.github.com> * shader_jit_a64: Fix address register offset behavior Based on https://github.com/citra-emu/citra/pull/6942 Passes unit tests. * shader_jit_a64: Fix `RET` address offset A64 stack is 16-byte aligned rather than 8. So a direct port of the x64 code won't work. Fixes weird branches into invalid memory for any shaders with subroutines. * shader_jit_a64: Increase max program size Tuned for A64 program size. * shader_jit_a64: Use `UBFX` for extracting loop-state Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit_a64: Optimize `SUB+CMP` to `SUBS` Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit_a64: Optimize `CMP+B` to `CBNZ` Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit_a64: Use `FMOV` for `ONE` vector Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit_a64: Remove x86-specific documentation * shader_jit_a64: Use `UBFX` to extract exponent Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit_a64: Remove redundant MIN/MAX `SRC2`-NaN check Special handling only needs to check SRC1 for NaN, not SRC2. It would work as follows in the four possible cases: No NaN: No special handling needed. Only SRC1 is NaN: The special handling is triggered because SRC1 is NaN, and SRC2 is picked. Only SRC2 is NaN: FMAX automatically picks SRC2 because it always picks the NaN if there is one. Both SRC1 and SRC2 are NaN: The special handling is triggered because SRC1 is NaN, and SRC2 is picked. Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit/tests:: Add catch-stringifier for vec2f/vec3f * shader_jit/tests: Add Dest Mask unit test * shader_jit_a64: Fix Dest-Mask `BSL` operand order Passes the dest-mask unit tests now. * shader_jit_a64: Use `MOVI` for DestEnable mask Accelerate certain cases of masking with MOVI as well Co-authored-by: JosJuice <JosJuice@users.noreply.github.com> * shader_jit/tests: Add source-swizzle unit test This is not expansive. Generating all `4^4` cases seems to make Catch2 crash. So I've added some component-masking(non-reordering) tests based on the Dest-Mask unit-test and some additional ones to test broadcasts/splats and component re-ordering. * shader_jit_a64: Fix swizzle index generation This was still generating `SHUFPS` indices and not the ones that we wanted for the `TBL` instruction. Passes all unit tests now. * shader_jit/tests: Add `ShaderSetup` constructor to `ShaderTest` Rather than using the direct output of `CompileShaderSetup` allow a `ShaderSetup` object to be passed in directly. This enabled the ability emit assembly that is not directly supported by nihstro. * shader_jit/tests: Add `CALL` unit-test Tests nested `CALL` instructions to eventually reach an `EX2` instruction. EX2 is picked in particular since it is implemented as an even deeper dispatch and ensures subroutines are properly implemented between `CALL` instructions and implementation-calls. * shader_jit_a64: Fix nested `BL` subroutines `lr` was getting writen over by nested calls to `BL`, causing undefined behavior with mixtures of `CALL`, `EX2`, and `LG2` instructions. Each usage of `BL` is now protected with a stach push/pop to preserve and restore teh `lr` register to allow nested subroutines to work properly. * shader_jit/tests: Allocate generated tests on heap Each of these generated shader-test objects were causing the stack to overflow. Allocate each of the generated tests on the heap and use unique_ptr so they only exist within the life-time of the `REQUIRE` statement. * shader_jit_a64: Preserve `lr` register from external function calls `EMIT` makes an external function call, and should be preserving `lr` * shader_jit/tests: Add `MAD` unit-test The Inline Asm version requires an upstream fix: https://github.com/neobrain/nihstro/issues/68 Instead, the program code is manually configured and added. * shader_jit/tests: Fix uninitialized instructions These `union`-type instruction-types were uninitialized, causing tests to indeterminantly fail at times. * shader_jit_a64: Remove unneeded `MOV` Residue from the direct-port of x64 code. * shader_jit_a64: Use `std::array` for `instr_table` Add some type-safety and const-correctness around this type as well. * shader_jit_a64: Avoid c-style offset casting Add some more const-correctness to this function as well. * video_core: Add arch preprocessor comments * common/aarch64: Use X16 as the veneer register https://developer.arm.com/documentation/102374/0101/Procedure-Call-Standard * shader_jit/tests: Add uniform reading unit-test Particularly to ensure that addresses are being properly truncated * common/aarch64: Use `X0` as `ABI_RETURN` `X8` is used as the indirect return result value in the case that the result is bigger than 128-bits. Principally `X0` is the general-case return register though. * common/aarch64: Add veneer register note `LR` is generally overwritten by `BLR` anyways, and would also be a safe veneer to utilize for far-calls. * shader_jit_a64: Remove unneeded scratch register from `SanitizedMul` * shader_jit_a64: Fix CALLU condition Should be `EQ` not `NE`. Fixes the regression on Kid Icarus. No known regressions anymore! --------- Co-authored-by: merryhime <merryhime@users.noreply.github.com> Co-authored-by: JosJuice <JosJuice@users.noreply.github.com>
This commit is contained in:
Wunk
GitHub
parent
3218af38d0
commit
e13735b624
14 changed files with 1874 additions and 25 deletions
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@ -53,6 +53,8 @@ add_custom_command(OUTPUT scm_rev.cpp
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add_library(citra_common STATIC
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aarch64/cpu_detect.cpp
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aarch64/cpu_detect.h
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aarch64/oaknut_abi.h
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aarch64/oaknut_util.h
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alignment.h
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android_storage.h
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android_storage.cpp
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@ -179,6 +181,10 @@ if ("x86_64" IN_LIST ARCHITECTURE)
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target_link_libraries(citra_common PRIVATE xbyak)
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endif()
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if ("arm64" IN_LIST ARCHITECTURE)
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target_link_libraries(citra_common PRIVATE oaknut)
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endif()
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if (CITRA_USE_PRECOMPILED_HEADERS)
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target_precompile_headers(citra_common PRIVATE precompiled_headers.h)
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endif()
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155
src/common/aarch64/oaknut_abi.h
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155
src/common/aarch64/oaknut_abi.h
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@ -0,0 +1,155 @@
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// Copyright 2023 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common/arch.h"
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#if CITRA_ARCH(arm64)
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#include <bitset>
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#include <initializer_list>
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#include <oaknut/oaknut.hpp>
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#include "common/assert.h"
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namespace Common::A64 {
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constexpr std::size_t RegToIndex(const oaknut::Reg& reg) {
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ASSERT(reg.index() != 31); // ZR not allowed
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return reg.index() + (reg.is_vector() ? 32 : 0);
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}
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constexpr oaknut::XReg IndexToXReg(std::size_t reg_index) {
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ASSERT(reg_index <= 30);
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return oaknut::XReg(static_cast<int>(reg_index));
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}
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constexpr oaknut::VReg IndexToVReg(std::size_t reg_index) {
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ASSERT(reg_index >= 32 && reg_index < 64);
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return oaknut::QReg(static_cast<int>(reg_index - 32));
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}
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constexpr oaknut::Reg IndexToReg(std::size_t reg_index) {
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if (reg_index < 32) {
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return IndexToXReg(reg_index);
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} else {
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return IndexToVReg(reg_index);
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}
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}
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inline constexpr std::bitset<64> BuildRegSet(std::initializer_list<oaknut::Reg> regs) {
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std::bitset<64> bits;
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for (const oaknut::Reg& reg : regs) {
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bits.set(RegToIndex(reg));
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}
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return bits;
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}
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constexpr inline std::bitset<64> ABI_ALL_GPRS(0x00000000'7FFFFFFF);
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constexpr inline std::bitset<64> ABI_ALL_FPRS(0xFFFFFFFF'00000000);
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constexpr inline oaknut::XReg ABI_RETURN = oaknut::util::X0;
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constexpr inline oaknut::XReg ABI_PARAM1 = oaknut::util::X0;
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constexpr inline oaknut::XReg ABI_PARAM2 = oaknut::util::X1;
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constexpr inline oaknut::XReg ABI_PARAM3 = oaknut::util::X2;
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constexpr inline oaknut::XReg ABI_PARAM4 = oaknut::util::X3;
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constexpr std::bitset<64> ABI_ALL_CALLER_SAVED = 0xffffffff'4000ffff;
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constexpr std::bitset<64> ABI_ALL_CALLEE_SAVED = 0x0000ff00'7ff80000;
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struct ABIFrameInfo {
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u32 subtraction;
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u32 fprs_offset;
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};
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inline ABIFrameInfo ABI_CalculateFrameSize(std::bitset<64> regs, std::size_t frame_size) {
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const size_t gprs_count = (regs & ABI_ALL_GPRS).count();
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const size_t fprs_count = (regs & ABI_ALL_FPRS).count();
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const size_t gprs_size = (gprs_count + 1) / 2 * 16;
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const size_t fprs_size = fprs_count * 16;
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size_t total_size = 0;
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total_size += gprs_size;
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const size_t fprs_base_subtraction = total_size;
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total_size += fprs_size;
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total_size += frame_size;
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return ABIFrameInfo{static_cast<u32>(total_size), static_cast<u32>(fprs_base_subtraction)};
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}
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inline void ABI_PushRegisters(oaknut::CodeGenerator& code, std::bitset<64> regs,
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std::size_t frame_size = 0) {
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using namespace oaknut;
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using namespace oaknut::util;
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auto frame_info = ABI_CalculateFrameSize(regs, frame_size);
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// Allocate stack-space
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if (frame_info.subtraction != 0) {
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code.SUB(SP, SP, frame_info.subtraction);
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}
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// TODO(wunk): Push pairs of registers at a time with STP
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std::size_t offset = 0;
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for (std::size_t i = 0; i < 32; ++i) {
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if (regs[i] && ABI_ALL_GPRS[i]) {
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const XReg reg = IndexToXReg(i);
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code.STR(reg, SP, offset);
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offset += 8;
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}
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}
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offset = 0;
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for (std::size_t i = 32; i < 64; ++i) {
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if (regs[i] && ABI_ALL_FPRS[i]) {
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const VReg reg = IndexToVReg(i);
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code.STR(reg.toQ(), SP, u16(frame_info.fprs_offset + offset));
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offset += 16;
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}
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}
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// Allocate frame-space
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if (frame_size != 0) {
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code.SUB(SP, SP, frame_size);
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}
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}
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inline void ABI_PopRegisters(oaknut::CodeGenerator& code, std::bitset<64> regs,
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std::size_t frame_size = 0) {
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using namespace oaknut;
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using namespace oaknut::util;
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auto frame_info = ABI_CalculateFrameSize(regs, frame_size);
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// Free frame-space
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if (frame_size != 0) {
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code.ADD(SP, SP, frame_size);
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}
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// TODO(wunk): Pop pairs of registers at a time with LDP
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std::size_t offset = 0;
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for (std::size_t i = 0; i < 32; ++i) {
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if (regs[i] && ABI_ALL_GPRS[i]) {
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const XReg reg = IndexToXReg(i);
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code.LDR(reg, SP, offset);
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offset += 8;
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}
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}
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offset = 0;
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for (std::size_t i = 32; i < 64; ++i) {
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if (regs[i] && ABI_ALL_FPRS[i]) {
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const VReg reg = IndexToVReg(i);
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code.LDR(reg.toQ(), SP, frame_info.fprs_offset + offset);
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offset += 16;
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}
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}
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// Free stack-space
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if (frame_info.subtraction != 0) {
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code.ADD(SP, SP, frame_info.subtraction);
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}
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}
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} // namespace Common::A64
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#endif // CITRA_ARCH(arm64)
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43
src/common/aarch64/oaknut_util.h
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43
src/common/aarch64/oaknut_util.h
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@ -0,0 +1,43 @@
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// Copyright 2023 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common/arch.h"
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#if CITRA_ARCH(arm64)
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#include <type_traits>
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#include <oaknut/oaknut.hpp>
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#include "common/aarch64/oaknut_abi.h"
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namespace Common::A64 {
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// BL can only reach targets within +-128MiB(24 bits)
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inline bool IsWithin128M(uintptr_t ref, uintptr_t target) {
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const u64 distance = target - (ref + 4);
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return !(distance >= 0x800'0000ULL && distance <= ~0x800'0000ULL);
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}
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inline bool IsWithin128M(const oaknut::CodeGenerator& code, uintptr_t target) {
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return IsWithin128M(code.ptr<uintptr_t>(), target);
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}
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template <typename T>
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inline void CallFarFunction(oaknut::CodeGenerator& code, const T f) {
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static_assert(std::is_pointer_v<T>, "Argument must be a (function) pointer.");
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const std::uintptr_t addr = reinterpret_cast<std::uintptr_t>(f);
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if (IsWithin128M(code, addr)) {
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code.BL(reinterpret_cast<const void*>(f));
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} else {
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// X16(IP0) and X17(IP1) is the standard veneer register
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// LR is also available as an intermediate register
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// https://developer.arm.com/documentation/102374/0101/Procedure-Call-Standard
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code.MOVP2R(oaknut::util::X16, reinterpret_cast<const void*>(f));
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code.BLR(oaknut::util::X16);
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}
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}
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} // namespace Common::A64
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#endif // CITRA_ARCH(arm64)
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@ -15,7 +15,7 @@ add_executable(tests
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audio_core/lle/lle.cpp
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audio_core/audio_fixures.h
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audio_core/decoder_tests.cpp
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video_core/shader/shader_jit_x64_compiler.cpp
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video_core/shader/shader_jit_compiler.cpp
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)
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create_target_directory_groups(tests)
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@ -1,9 +1,9 @@
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// Copyright 2017 Citra Emulator Project
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// Copyright 2023 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/arch.h"
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#if CITRA_ARCH(x86_64)
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#if CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
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#include <algorithm>
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#include <cmath>
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#include <fmt/format.h>
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#include <nihstro/inline_assembly.h>
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#include "video_core/shader/shader_interpreter.h"
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#if CITRA_ARCH(x86_64)
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#include "video_core/shader/shader_jit_x64_compiler.h"
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#elif CITRA_ARCH(arm64)
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#include "video_core/shader/shader_jit_a64_compiler.h"
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#endif
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using JitShader = Pica::Shader::JitShader;
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using ShaderInterpreter = Pica::Shader::InterpreterEngine;
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namespace Catch {
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template <>
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struct StringMaker<Common::Vec2f> {
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static std::string convert(Common::Vec2f value) {
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return fmt::format("({}, {})", value.x, value.y);
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}
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};
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template <>
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struct StringMaker<Common::Vec3f> {
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static std::string convert(Common::Vec3f value) {
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return fmt::format("({}, {}, {})", value.r(), value.g(), value.b());
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}
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};
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template <>
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struct StringMaker<Common::Vec4f> {
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static std::string convert(Common::Vec4f value) {
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return fmt::format("({}, {}, {}, {})", value.r(), value.g(), value.b(), value.a());
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shader_jit.Compile(&shader_setup->program_code, &shader_setup->swizzle_data);
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}
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explicit ShaderTest(std::unique_ptr<Pica::Shader::ShaderSetup> input_shader_setup)
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: shader_setup(std::move(input_shader_setup)) {
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shader_jit.Compile(&shader_setup->program_code, &shader_setup->swizzle_data);
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}
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Common::Vec4f Run(std::span<const Common::Vec4f> inputs) {
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Pica::Shader::UnitState shader_unit;
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RunJit(shader_unit, inputs);
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@ -144,6 +165,41 @@ TEST_CASE("ADD", "[video_core][shader][shader_jit]") {
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REQUIRE(std::isinf(shader.Run({INFINITY, -1.0f}).x));
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}
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TEST_CASE("CALL", "[video_core][shader][shader_jit]") {
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const auto sh_input = SourceRegister::MakeInput(0);
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const auto sh_output = DestRegister::MakeOutput(0);
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auto shader_setup = CompileShaderSetup({
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{OpCode::Id::NOP}, // call foo
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{OpCode::Id::END},
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// .proc foo
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{OpCode::Id::NOP}, // call ex2
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{OpCode::Id::END},
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// .proc ex2
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{OpCode::Id::EX2, sh_output, sh_input},
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{OpCode::Id::END},
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});
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// nihstro does not support the CALL* instructions, so the instruction-binary must be manually
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// inserted here:
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nihstro::Instruction CALL = {};
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CALL.opcode = nihstro::OpCode(nihstro::OpCode::Id::CALL);
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// call foo
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CALL.flow_control.dest_offset = 2;
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CALL.flow_control.num_instructions = 1;
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shader_setup->program_code[0] = CALL.hex;
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// call ex2
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CALL.flow_control.dest_offset = 4;
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CALL.flow_control.num_instructions = 1;
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shader_setup->program_code[2] = CALL.hex;
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auto shader = ShaderTest(std::move(shader_setup));
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REQUIRE(shader.Run(0.f).x == Catch::Approx(1.f));
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}
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TEST_CASE("DP3", "[video_core][shader][shader_jit]") {
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const auto sh_input1 = SourceRegister::MakeInput(0);
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const auto sh_input2 = SourceRegister::MakeInput(1);
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|
|
@ -395,6 +451,39 @@ TEST_CASE("RSQ", "[video_core][shader][shader_jit]") {
|
|||
REQUIRE(shader.Run({0.0625f}).x == Catch::Approx(4.0f).margin(0.004f));
|
||||
}
|
||||
|
||||
TEST_CASE("Uniform Read", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input = SourceRegister::MakeInput(0);
|
||||
const auto sh_c0 = SourceRegister::MakeFloat(0);
|
||||
const auto sh_output = DestRegister::MakeOutput(0);
|
||||
|
||||
auto shader = ShaderTest({
|
||||
// mova a0.x, sh_input.x
|
||||
{OpCode::Id::MOVA, DestRegister{}, "x", sh_input, "x", SourceRegister{}, "",
|
||||
nihstro::InlineAsm::RelativeAddress::A1},
|
||||
// mov sh_output.xyzw, c0[a0.x].xyzw
|
||||
{OpCode::Id::MOV, sh_output, "xyzw", sh_c0, "xyzw", SourceRegister{}, "",
|
||||
nihstro::InlineAsm::RelativeAddress::A1},
|
||||
{OpCode::Id::END},
|
||||
});
|
||||
|
||||
// Prepare shader uniforms
|
||||
std::array<Common::Vec4f, 96> f_uniforms = {};
|
||||
for (u32 i = 0; i < 96; ++i) {
|
||||
const float color = (i * 2.0f) / 255.0f;
|
||||
const auto color_f24 = Pica::f24::FromFloat32(color);
|
||||
shader.shader_setup->uniforms.f[i] = {color_f24, color_f24, color_f24, Pica::f24::One()};
|
||||
f_uniforms[i] = {color, color, color, 1.0f};
|
||||
}
|
||||
|
||||
for (u32 i = 0; i < 96; ++i) {
|
||||
const float index = static_cast<float>(i);
|
||||
// Add some fractional values to test proper float->integer truncation
|
||||
const float fractional = (i % 17) / 17.0f;
|
||||
|
||||
REQUIRE(shader.Run(index + fractional) == f_uniforms[i]);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_CASE("Address Register Offset", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input = SourceRegister::MakeInput(0);
|
||||
const auto sh_c40 = SourceRegister::MakeFloat(40);
|
||||
|
|
@ -445,23 +534,83 @@ TEST_CASE("Address Register Offset", "[video_core][shader][shader_jit]") {
|
|||
REQUIRE(shader.Run(-129.f) == f_uniforms[40]);
|
||||
}
|
||||
|
||||
// TODO: Requires fix from https://github.com/neobrain/nihstro/issues/68
|
||||
// TEST_CASE("MAD", "[video_core][shader][shader_jit]") {
|
||||
// const auto sh_input1 = SourceRegister::MakeInput(0);
|
||||
// const auto sh_input2 = SourceRegister::MakeInput(1);
|
||||
// const auto sh_input3 = SourceRegister::MakeInput(2);
|
||||
// const auto sh_output = DestRegister::MakeOutput(0);
|
||||
TEST_CASE("Dest Mask", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input = SourceRegister::MakeInput(0);
|
||||
const auto sh_output = DestRegister::MakeOutput(0);
|
||||
|
||||
// auto shader = ShaderTest({
|
||||
// {OpCode::Id::MAD, sh_output, sh_input1, sh_input2, sh_input3},
|
||||
// {OpCode::Id::END},
|
||||
// });
|
||||
const auto shader = [&sh_input, &sh_output](const char* dest_mask) {
|
||||
return std::unique_ptr<ShaderTest>(new ShaderTest{
|
||||
{OpCode::Id::MOV, sh_output, dest_mask, sh_input, "xyzw", SourceRegister{}, ""},
|
||||
{OpCode::Id::END},
|
||||
});
|
||||
};
|
||||
|
||||
// REQUIRE(shader.Run({vec4_inf, vec4_zero, vec4_zero}).x == 0.0f);
|
||||
// REQUIRE(std::isnan(shader.Run({vec4_nan, vec4_zero, vec4_zero}).x));
|
||||
const Common::Vec4f iota_vec = {1.0f, 2.0f, 3.0f, 4.0f};
|
||||
|
||||
// REQUIRE(shader.Run({vec4_one, vec4_one, vec4_one}).x == 2.0f);
|
||||
// }
|
||||
REQUIRE(shader("x")->Run({iota_vec}).x == iota_vec.x);
|
||||
REQUIRE(shader("y")->Run({iota_vec}).y == iota_vec.y);
|
||||
REQUIRE(shader("z")->Run({iota_vec}).z == iota_vec.z);
|
||||
REQUIRE(shader("w")->Run({iota_vec}).w == iota_vec.w);
|
||||
REQUIRE(shader("xy")->Run({iota_vec}).xy() == iota_vec.xy());
|
||||
REQUIRE(shader("xz")->Run({iota_vec}).xz() == iota_vec.xz());
|
||||
REQUIRE(shader("xw")->Run({iota_vec}).xw() == iota_vec.xw());
|
||||
REQUIRE(shader("yz")->Run({iota_vec}).yz() == iota_vec.yz());
|
||||
REQUIRE(shader("yw")->Run({iota_vec}).yw() == iota_vec.yw());
|
||||
REQUIRE(shader("zw")->Run({iota_vec}).zw() == iota_vec.zw());
|
||||
REQUIRE(shader("xyz")->Run({iota_vec}).xyz() == iota_vec.xyz());
|
||||
REQUIRE(shader("xyw")->Run({iota_vec}).xyw() == iota_vec.xyw());
|
||||
REQUIRE(shader("xzw")->Run({iota_vec}).xzw() == iota_vec.xzw());
|
||||
REQUIRE(shader("yzw")->Run({iota_vec}).yzw() == iota_vec.yzw());
|
||||
REQUIRE(shader("xyzw")->Run({iota_vec}) == iota_vec);
|
||||
}
|
||||
|
||||
TEST_CASE("MAD", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input1 = SourceRegister::MakeInput(0);
|
||||
const auto sh_input2 = SourceRegister::MakeInput(1);
|
||||
const auto sh_input3 = SourceRegister::MakeInput(2);
|
||||
const auto sh_output = DestRegister::MakeOutput(0);
|
||||
|
||||
auto shader_setup = CompileShaderSetup({
|
||||
// TODO: Requires fix from https://github.com/neobrain/nihstro/issues/68
|
||||
// {OpCode::Id::MAD, sh_output, sh_input1, sh_input2, sh_input3},
|
||||
{OpCode::Id::NOP},
|
||||
{OpCode::Id::END},
|
||||
});
|
||||
|
||||
// nihstro does not support the MAD* instructions, so the instruction-binary must be manually
|
||||
// inserted here:
|
||||
nihstro::Instruction MAD = {};
|
||||
MAD.opcode = nihstro::OpCode::Id::MAD;
|
||||
MAD.mad.operand_desc_id = 0;
|
||||
MAD.mad.src1 = sh_input1;
|
||||
MAD.mad.src2 = sh_input2;
|
||||
MAD.mad.src3 = sh_input3;
|
||||
MAD.mad.dest = sh_output;
|
||||
shader_setup->program_code[0] = MAD.hex;
|
||||
|
||||
nihstro::SwizzlePattern swizzle = {};
|
||||
swizzle.dest_mask = 0b1111;
|
||||
swizzle.SetSelectorSrc1(0, SwizzlePattern::Selector::x);
|
||||
swizzle.SetSelectorSrc1(1, SwizzlePattern::Selector::y);
|
||||
swizzle.SetSelectorSrc1(2, SwizzlePattern::Selector::z);
|
||||
swizzle.SetSelectorSrc1(3, SwizzlePattern::Selector::w);
|
||||
swizzle.SetSelectorSrc2(0, SwizzlePattern::Selector::x);
|
||||
swizzle.SetSelectorSrc2(1, SwizzlePattern::Selector::y);
|
||||
swizzle.SetSelectorSrc2(2, SwizzlePattern::Selector::z);
|
||||
swizzle.SetSelectorSrc2(3, SwizzlePattern::Selector::w);
|
||||
swizzle.SetSelectorSrc3(0, SwizzlePattern::Selector::x);
|
||||
swizzle.SetSelectorSrc3(1, SwizzlePattern::Selector::y);
|
||||
swizzle.SetSelectorSrc3(2, SwizzlePattern::Selector::z);
|
||||
swizzle.SetSelectorSrc3(3, SwizzlePattern::Selector::w);
|
||||
shader_setup->swizzle_data[0] = swizzle.hex;
|
||||
|
||||
auto shader = ShaderTest(std::move(shader_setup));
|
||||
|
||||
REQUIRE(shader.Run({vec4_zero, vec4_zero, vec4_zero}) == vec4_zero);
|
||||
REQUIRE(shader.Run({vec4_one, vec4_one, vec4_one}) == (vec4_one * 2.0f));
|
||||
REQUIRE(shader.Run({vec4_inf, vec4_zero, vec4_zero}) == vec4_zero);
|
||||
REQUIRE(shader.Run({vec4_nan, vec4_zero, vec4_zero}) == vec4_nan);
|
||||
}
|
||||
|
||||
TEST_CASE("Nested Loop", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input = SourceRegister::MakeInput(0);
|
||||
|
|
@ -518,4 +667,42 @@ TEST_CASE("Nested Loop", "[video_core][shader][shader_jit]") {
|
|||
}
|
||||
}
|
||||
|
||||
#endif // CITRA_ARCH(x86_64)
|
||||
TEST_CASE("Source Swizzle", "[video_core][shader][shader_jit]") {
|
||||
const auto sh_input = SourceRegister::MakeInput(0);
|
||||
const auto sh_output = DestRegister::MakeOutput(0);
|
||||
|
||||
const auto shader = [&sh_input, &sh_output](const char* swizzle) {
|
||||
return std::unique_ptr<ShaderTest>(new ShaderTest{
|
||||
{OpCode::Id::MOV, sh_output, "xyzw", sh_input, swizzle, SourceRegister{}, ""},
|
||||
{OpCode::Id::END},
|
||||
});
|
||||
};
|
||||
|
||||
const Common::Vec4f iota_vec = {1.0f, 2.0f, 3.0f, 4.0f};
|
||||
|
||||
REQUIRE(shader("x")->Run({iota_vec}).x == iota_vec.x);
|
||||
REQUIRE(shader("y")->Run({iota_vec}).x == iota_vec.y);
|
||||
REQUIRE(shader("z")->Run({iota_vec}).x == iota_vec.z);
|
||||
REQUIRE(shader("w")->Run({iota_vec}).x == iota_vec.w);
|
||||
REQUIRE(shader("xy")->Run({iota_vec}).xy() == iota_vec.xy());
|
||||
REQUIRE(shader("xz")->Run({iota_vec}).xy() == iota_vec.xz());
|
||||
REQUIRE(shader("xw")->Run({iota_vec}).xy() == iota_vec.xw());
|
||||
REQUIRE(shader("yz")->Run({iota_vec}).xy() == iota_vec.yz());
|
||||
REQUIRE(shader("yw")->Run({iota_vec}).xy() == iota_vec.yw());
|
||||
REQUIRE(shader("zw")->Run({iota_vec}).xy() == iota_vec.zw());
|
||||
REQUIRE(shader("yy")->Run({iota_vec}).xy() == iota_vec.yy());
|
||||
REQUIRE(shader("wx")->Run({iota_vec}).xy() == iota_vec.wx());
|
||||
REQUIRE(shader("xyz")->Run({iota_vec}).xyz() == iota_vec.xyz());
|
||||
REQUIRE(shader("xyw")->Run({iota_vec}).xyz() == iota_vec.xyw());
|
||||
REQUIRE(shader("xzw")->Run({iota_vec}).xyz() == iota_vec.xzw());
|
||||
REQUIRE(shader("yzw")->Run({iota_vec}).xyz() == iota_vec.yzw());
|
||||
REQUIRE(shader("yyy")->Run({iota_vec}).xyz() == iota_vec.yyy());
|
||||
REQUIRE(shader("yxw")->Run({iota_vec}).xyz() == iota_vec.yxw());
|
||||
REQUIRE(shader("xyzw")->Run({iota_vec}) == iota_vec);
|
||||
REQUIRE(shader("wzxy")->Run({iota_vec}) ==
|
||||
Common::Vec4f(iota_vec.w, iota_vec.z, iota_vec.x, iota_vec.y));
|
||||
REQUIRE(shader("yyyy")->Run({iota_vec}) ==
|
||||
Common::Vec4f(iota_vec.y, iota_vec.y, iota_vec.y, iota_vec.y));
|
||||
}
|
||||
|
||||
#endif // CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
|
||||
|
|
@ -149,6 +149,10 @@ add_library(video_core STATIC
|
|||
shader/shader.h
|
||||
shader/shader_interpreter.cpp
|
||||
shader/shader_interpreter.h
|
||||
shader/shader_jit_a64.cpp
|
||||
shader/shader_jit_a64_compiler.cpp
|
||||
shader/shader_jit_a64.h
|
||||
shader/shader_jit_a64_compiler.h
|
||||
shader/shader_jit_x64.cpp
|
||||
shader/shader_jit_x64_compiler.cpp
|
||||
shader/shader_jit_x64.h
|
||||
|
|
@ -177,6 +181,10 @@ if ("x86_64" IN_LIST ARCHITECTURE)
|
|||
target_link_libraries(video_core PUBLIC xbyak)
|
||||
endif()
|
||||
|
||||
if ("arm64" IN_LIST ARCHITECTURE)
|
||||
target_link_libraries(video_core PUBLIC oaknut)
|
||||
endif()
|
||||
|
||||
if (CITRA_USE_PRECOMPILED_HEADERS)
|
||||
target_precompile_headers(video_core PRIVATE precompiled_headers.h)
|
||||
endif()
|
||||
|
|
|
|||
|
|
@ -15,7 +15,9 @@
|
|||
#include "video_core/shader/shader_interpreter.h"
|
||||
#if CITRA_ARCH(x86_64)
|
||||
#include "video_core/shader/shader_jit_x64.h"
|
||||
#endif // CITRA_ARCH(x86_64)
|
||||
#elif CITRA_ARCH(arm64)
|
||||
#include "video_core/shader/shader_jit_a64.h"
|
||||
#endif
|
||||
#include "video_core/video_core.h"
|
||||
|
||||
namespace Pica::Shader {
|
||||
|
|
@ -141,27 +143,29 @@ MICROPROFILE_DEFINE(GPU_Shader, "GPU", "Shader", MP_RGB(50, 50, 240));
|
|||
|
||||
#if CITRA_ARCH(x86_64)
|
||||
static std::unique_ptr<JitX64Engine> jit_engine;
|
||||
#endif // CITRA_ARCH(x86_64)
|
||||
#elif CITRA_ARCH(arm64)
|
||||
static std::unique_ptr<JitA64Engine> jit_engine;
|
||||
#endif
|
||||
static InterpreterEngine interpreter_engine;
|
||||
|
||||
ShaderEngine* GetEngine() {
|
||||
#if CITRA_ARCH(x86_64)
|
||||
#if CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
|
||||
// TODO(yuriks): Re-initialize on each change rather than being persistent
|
||||
if (VideoCore::g_shader_jit_enabled) {
|
||||
if (jit_engine == nullptr) {
|
||||
jit_engine = std::make_unique<JitX64Engine>();
|
||||
jit_engine = std::make_unique<decltype(jit_engine)::element_type>();
|
||||
}
|
||||
return jit_engine.get();
|
||||
}
|
||||
#endif // CITRA_ARCH(x86_64)
|
||||
#endif // CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
|
||||
|
||||
return &interpreter_engine;
|
||||
}
|
||||
|
||||
void Shutdown() {
|
||||
#if CITRA_ARCH(x86_64)
|
||||
#if CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
|
||||
jit_engine = nullptr;
|
||||
#endif // CITRA_ARCH(x86_64)
|
||||
#endif // CITRA_ARCH(x86_64) || CITRA_ARCH(arm64)
|
||||
}
|
||||
|
||||
} // namespace Pica::Shader
|
||||
|
|
|
|||
51
src/video_core/shader/shader_jit_a64.cpp
Normal file
51
src/video_core/shader/shader_jit_a64.cpp
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
// Copyright 2023 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include "common/arch.h"
|
||||
#if CITRA_ARCH(arm64)
|
||||
|
||||
#include "common/assert.h"
|
||||
#include "common/microprofile.h"
|
||||
#include "video_core/shader/shader.h"
|
||||
#include "video_core/shader/shader_jit_a64.h"
|
||||
#include "video_core/shader/shader_jit_a64_compiler.h"
|
||||
|
||||
namespace Pica::Shader {
|
||||
|
||||
JitA64Engine::JitA64Engine() = default;
|
||||
JitA64Engine::~JitA64Engine() = default;
|
||||
|
||||
void JitA64Engine::SetupBatch(ShaderSetup& setup, unsigned int entry_point) {
|
||||
ASSERT(entry_point < MAX_PROGRAM_CODE_LENGTH);
|
||||
setup.engine_data.entry_point = entry_point;
|
||||
|
||||
u64 code_hash = setup.GetProgramCodeHash();
|
||||
u64 swizzle_hash = setup.GetSwizzleDataHash();
|
||||
|
||||
u64 cache_key = code_hash ^ swizzle_hash;
|
||||
auto iter = cache.find(cache_key);
|
||||
if (iter != cache.end()) {
|
||||
setup.engine_data.cached_shader = iter->second.get();
|
||||
} else {
|
||||
auto shader = std::make_unique<JitShader>();
|
||||
shader->Compile(&setup.program_code, &setup.swizzle_data);
|
||||
setup.engine_data.cached_shader = shader.get();
|
||||
cache.emplace_hint(iter, cache_key, std::move(shader));
|
||||
}
|
||||
}
|
||||
|
||||
MICROPROFILE_DECLARE(GPU_Shader);
|
||||
|
||||
void JitA64Engine::Run(const ShaderSetup& setup, UnitState& state) const {
|
||||
ASSERT(setup.engine_data.cached_shader != nullptr);
|
||||
|
||||
MICROPROFILE_SCOPE(GPU_Shader);
|
||||
|
||||
const JitShader* shader = static_cast<const JitShader*>(setup.engine_data.cached_shader);
|
||||
shader->Run(setup, state, setup.engine_data.entry_point);
|
||||
}
|
||||
|
||||
} // namespace Pica::Shader
|
||||
|
||||
#endif // CITRA_ARCH(arm64)
|
||||
33
src/video_core/shader/shader_jit_a64.h
Normal file
33
src/video_core/shader/shader_jit_a64.h
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
// Copyright 2023 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "common/arch.h"
|
||||
#if CITRA_ARCH(arm64)
|
||||
|
||||
#include <memory>
|
||||
#include <unordered_map>
|
||||
#include "common/common_types.h"
|
||||
#include "video_core/shader/shader.h"
|
||||
|
||||
namespace Pica::Shader {
|
||||
|
||||
class JitShader;
|
||||
|
||||
class JitA64Engine final : public ShaderEngine {
|
||||
public:
|
||||
JitA64Engine();
|
||||
~JitA64Engine() override;
|
||||
|
||||
void SetupBatch(ShaderSetup& setup, unsigned int entry_point) override;
|
||||
void Run(const ShaderSetup& setup, UnitState& state) const override;
|
||||
|
||||
private:
|
||||
std::unordered_map<u64, std::unique_ptr<JitShader>> cache;
|
||||
};
|
||||
|
||||
} // namespace Pica::Shader
|
||||
|
||||
#endif // CITRA_ARCH(arm64)
|
||||
1207
src/video_core/shader/shader_jit_a64_compiler.cpp
Normal file
1207
src/video_core/shader/shader_jit_a64_compiler.cpp
Normal file
File diff suppressed because it is too large
Load diff
146
src/video_core/shader/shader_jit_a64_compiler.h
Normal file
146
src/video_core/shader/shader_jit_a64_compiler.h
Normal file
|
|
@ -0,0 +1,146 @@
|
|||
// Copyright 2023 Citra Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "common/arch.h"
|
||||
#if CITRA_ARCH(arm64)
|
||||
|
||||
#include <array>
|
||||
#include <bitset>
|
||||
#include <cstddef>
|
||||
#include <optional>
|
||||
#include <utility>
|
||||
#include <vector>
|
||||
#include <nihstro/shader_bytecode.h>
|
||||
#include <oaknut/code_block.hpp>
|
||||
#include <oaknut/oaknut.hpp>
|
||||
#include "common/common_types.h"
|
||||
#include "video_core/shader/shader.h"
|
||||
|
||||
using nihstro::Instruction;
|
||||
using nihstro::OpCode;
|
||||
using nihstro::SourceRegister;
|
||||
using nihstro::SwizzlePattern;
|
||||
|
||||
namespace Pica::Shader {
|
||||
|
||||
/// Memory allocated for each compiled shader
|
||||
constexpr std::size_t MAX_SHADER_SIZE = MAX_PROGRAM_CODE_LENGTH * 256;
|
||||
|
||||
/**
|
||||
* This class implements the shader JIT compiler. It recompiles a Pica shader program into x86_64
|
||||
* code that can be executed on the host machine directly.
|
||||
*/
|
||||
class JitShader : private oaknut::CodeBlock, public oaknut::CodeGenerator {
|
||||
public:
|
||||
JitShader();
|
||||
|
||||
void Run(const ShaderSetup& setup, UnitState& state, unsigned offset) const {
|
||||
program(&setup.uniforms, &state, instruction_labels[offset].ptr<const std::byte*>());
|
||||
}
|
||||
|
||||
void Compile(const std::array<u32, MAX_PROGRAM_CODE_LENGTH>* program_code,
|
||||
const std::array<u32, MAX_SWIZZLE_DATA_LENGTH>* swizzle_data);
|
||||
|
||||
void Compile_ADD(Instruction instr);
|
||||
void Compile_DP3(Instruction instr);
|
||||
void Compile_DP4(Instruction instr);
|
||||
void Compile_DPH(Instruction instr);
|
||||
void Compile_EX2(Instruction instr);
|
||||
void Compile_LG2(Instruction instr);
|
||||
void Compile_MUL(Instruction instr);
|
||||
void Compile_SGE(Instruction instr);
|
||||
void Compile_SLT(Instruction instr);
|
||||
void Compile_FLR(Instruction instr);
|
||||
void Compile_MAX(Instruction instr);
|
||||
void Compile_MIN(Instruction instr);
|
||||
void Compile_RCP(Instruction instr);
|
||||
void Compile_RSQ(Instruction instr);
|
||||
void Compile_MOVA(Instruction instr);
|
||||
void Compile_MOV(Instruction instr);
|
||||
void Compile_NOP(Instruction instr);
|
||||
void Compile_END(Instruction instr);
|
||||
void Compile_BREAKC(Instruction instr);
|
||||
void Compile_CALL(Instruction instr);
|
||||
void Compile_CALLC(Instruction instr);
|
||||
void Compile_CALLU(Instruction instr);
|
||||
void Compile_IF(Instruction instr);
|
||||
void Compile_LOOP(Instruction instr);
|
||||
void Compile_JMP(Instruction instr);
|
||||
void Compile_CMP(Instruction instr);
|
||||
void Compile_MAD(Instruction instr);
|
||||
void Compile_EMIT(Instruction instr);
|
||||
void Compile_SETE(Instruction instr);
|
||||
|
||||
private:
|
||||
void Compile_Block(unsigned end);
|
||||
void Compile_NextInstr();
|
||||
|
||||
void Compile_SwizzleSrc(Instruction instr, unsigned src_num, SourceRegister src_reg,
|
||||
oaknut::QReg dest);
|
||||
void Compile_DestEnable(Instruction instr, oaknut::QReg dest);
|
||||
|
||||
/**
|
||||
* Compiles a `MUL src1, src2` operation, properly handling the PICA semantics when multiplying
|
||||
* zero by inf. Clobbers `src2` and `scratch`.
|
||||
*/
|
||||
void Compile_SanitizedMul(oaknut::QReg src1, oaknut::QReg src2, oaknut::QReg scratch0);
|
||||
|
||||
void Compile_EvaluateCondition(Instruction instr);
|
||||
void Compile_UniformCondition(Instruction instr);
|
||||
|
||||
/**
|
||||
* Emits the code to conditionally return from a subroutine envoked by the `CALL` instruction.
|
||||
*/
|
||||
void Compile_Return();
|
||||
|
||||
std::bitset<64> PersistentCallerSavedRegs();
|
||||
|
||||
/**
|
||||
* Assertion evaluated at compile-time, but only triggered if executed at runtime.
|
||||
* @param condition Condition to be evaluated.
|
||||
* @param msg Message to be logged if the assertion fails.
|
||||
*/
|
||||
void Compile_Assert(bool condition, const char* msg);
|
||||
|
||||
/**
|
||||
* Analyzes the entire shader program for `CALL` instructions before emitting any code,
|
||||
* identifying the locations where a return needs to be inserted.
|
||||
*/
|
||||
void FindReturnOffsets();
|
||||
|
||||
/**
|
||||
* Emits data and code for utility functions.
|
||||
*/
|
||||
void CompilePrelude();
|
||||
oaknut::Label CompilePrelude_Log2();
|
||||
oaknut::Label CompilePrelude_Exp2();
|
||||
|
||||
const std::array<u32, MAX_PROGRAM_CODE_LENGTH>* program_code = nullptr;
|
||||
const std::array<u32, MAX_SWIZZLE_DATA_LENGTH>* swizzle_data = nullptr;
|
||||
|
||||
/// Mapping of Pica VS instructions to pointers in the emitted code
|
||||
std::array<oaknut::Label, MAX_PROGRAM_CODE_LENGTH> instruction_labels;
|
||||
|
||||
/// Labels pointing to the end of each nested LOOP block. Used by the BREAKC instruction to
|
||||
/// break out of a loop.
|
||||
std::vector<oaknut::Label> loop_break_labels;
|
||||
|
||||
/// Offsets in code where a return needs to be inserted
|
||||
std::vector<unsigned> return_offsets;
|
||||
|
||||
unsigned program_counter = 0; ///< Offset of the next instruction to decode
|
||||
u8 loop_depth = 0; ///< Depth of the (nested) loops currently compiled
|
||||
|
||||
using CompiledShader = void(const void* setup, void* state, const std::byte* start_addr);
|
||||
CompiledShader* program = nullptr;
|
||||
|
||||
oaknut::Label log2_subroutine;
|
||||
oaknut::Label exp2_subroutine;
|
||||
};
|
||||
|
||||
} // namespace Pica::Shader
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue