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More optimizations for Ryzen

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This commit is contained in:
SChernykh 2019-12-09 20:29:05 +01:00
parent 9bc13813ba
commit 763691fa4b
5 changed files with 20 additions and 11 deletions
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15
src/crypto/randomx/asm/program_read_dataset_ryzen.inc
View file

@ -7,13 +7,12 @@
and edx, RANDOMX_DATASET_BASE_MASK
prefetchnta byte ptr [rdi+rdx]
ror rbp, 32 ;# swap "ma" and "mx"
add rcx, rdi ;# dataset cache line
xor r8, rax
xor r9, qword ptr [rcx+8]
xor r10, qword ptr [rcx+16]
xor r11, qword ptr [rcx+24]
xor r12, qword ptr [rcx+32]
xor r13, qword ptr [rcx+40]
xor r14, qword ptr [rcx+48]
xor r15, qword ptr [rcx+56]
xor r9, qword ptr [rdi+rcx+8]
xor r10, qword ptr [rdi+rcx+16]
xor r11, qword ptr [rdi+rcx+24]
xor r12, qword ptr [rdi+rcx+32]
xor r13, qword ptr [rdi+rcx+40]
xor r14, qword ptr [rdi+rcx+48]
xor r15, qword ptr [rdi+rcx+56]

10
src/crypto/randomx/jit_compiler_x86.cpp
View file

@ -169,6 +169,7 @@ namespace randomx {
static const uint8_t REX_DIVPD[] = { 0x66, 0x41, 0x0f, 0x5e };
static const uint8_t SQRTPD[] = { 0x66, 0x0f, 0x51 };
static const uint8_t AND_OR_MOV_LDMXCSR[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x89, 0x44, 0x24, 0xFC, 0x0F, 0xAE, 0x54, 0x24, 0xFC };
static const uint8_t AND_OR_MOV_LDMXCSR_RYZEN[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x3B, 0x44, 0x24, 0xFC, 0x74, 0x09, 0x89, 0x44, 0x24, 0xFC, 0x0F, 0xAE, 0x54, 0x24, 0xFC };
static const uint8_t ROL_RAX[] = { 0x48, 0xc1, 0xc0 };
static const uint8_t XOR_ECX_ECX[] = { 0x33, 0xC9 };
static const uint8_t REX_CMP_R32I[] = { 0x41, 0x81 };
@ -300,6 +301,8 @@ namespace randomx {
}
void JitCompilerX86::generateProgram(Program& prog, ProgramConfiguration& pcfg, uint32_t flags) {
vm_flags = flags;
generateProgramPrologue(prog, pcfg);
uint8_t* p;
@ -1010,7 +1013,12 @@ namespace randomx {
emit(ROL_RAX, p, pos);
emitByte(rotate, p, pos);
}
emit(AND_OR_MOV_LDMXCSR, p, pos);
if (vm_flags & RANDOMX_FLAG_RYZEN) {
emit(AND_OR_MOV_LDMXCSR_RYZEN, p, pos);
}
else {
emit(AND_OR_MOV_LDMXCSR, p, pos);
}
codePos = pos;
}

1
src/crypto/randomx/jit_compiler_x86.hpp
View file

@ -70,6 +70,7 @@ namespace randomx {
uint8_t* allocatedCode;
uint8_t* code;
int32_t codePos;
uint32_t vm_flags;
static bool BranchesWithin32B;

1
src/crypto/randomx/jit_compiler_x86_static.asm
View file

@ -81,6 +81,7 @@ randomx_program_prologue_first_load PROC
and eax, RANDOMX_SCRATCHPAD_MASK
ror rdx, 32
and edx, RANDOMX_SCRATCHPAD_MASK
stmxcsr dword ptr [rsp-20]
jmp randomx_program_loop_begin
randomx_program_prologue_first_load ENDP

4
src/crypto/randomx/randomx.h
View file

@ -119,9 +119,9 @@ struct RandomX_ConfigurationBase
rx_vec_i128 fillAes4Rx4_Key[8];
uint8_t codeShhPrefetchTweaked[20];
uint8_t codeReadDatasetTweaked[72];
uint8_t codeReadDatasetTweaked[256];
uint32_t codeReadDatasetTweakedSize;
uint8_t codeReadDatasetRyzenTweaked[72];
uint8_t codeReadDatasetRyzenTweaked[256];
uint32_t codeReadDatasetRyzenTweakedSize;
uint8_t codeReadDatasetLightSshInitTweaked[68];
uint8_t codePrefetchScratchpadTweaked[32];