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R5900: Implement ARM NEON intrinsics for the EE cache

This commit is contained in:
Ty 2025-01-17 17:21:50 -05:00 committed by Ty
parent e3b61b5b1f
commit 71100679a3
1 changed files with 37 additions and 4 deletions
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41
pcsx2/vtlb.cpp
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@ -30,9 +30,6 @@
#include "fmt/format.h"
#include <bit>
#ifdef _M_X86
#include <immintrin.h>
#endif
#include <map>
#include <unordered_set>
#include <unordered_map>
@ -112,6 +109,16 @@ vtlb_private::VTLBVirtual::VTLBVirtual(VTLBPhysical phys, u32 paddr, u32 vaddr)
}
}
#if defined(_M_X86)
#include <immintrin.h>
#elif defined(_M_ARM64)
#if defined(_MSC_VER) && !defined(__clang__)
#include <arm64_neon.h>
#else
#include <arm_neon.h>
#endif
#endif
__inline int CheckCache(u32 addr)
{
// Check if the cache is enabled
@ -123,7 +130,7 @@ __inline int CheckCache(u32 addr)
size_t i = 0;
const size_t size = cachedTlbs.count;
#ifdef _M_X86
#if defined(_M_X86)
const int stride = 4;
const __m128i addr_vec = _mm_set1_epi32(addr);
@ -173,6 +180,32 @@ __inline int CheckCache(u32 addr)
return true;
}
}
#elif defined(_M_ARM64)
const int stride = 4;
const uint32x4_t addr_vec = vld1q_dup_u32(&addr);
for (; i + stride <= size; i += stride)
{
const uint32x4_t pfn1_vec = vld1q_u32(&cachedTlbs.PFN1s[i]);
const uint32x4_t pfn0_vec = vld1q_u32(&cachedTlbs.PFN0s[i]);
const uint32x4_t mask_vec = vld1q_u32(&cachedTlbs.PageMasks[i]);
const uint32x4_t cached1_vec = vld1q_u32(&cachedTlbs.CacheEnabled1[i]);
const uint32x4_t cached0_vec = vld1q_u32(&cachedTlbs.CacheEnabled0[i]);
const uint32x4_t pfn1_end_vec = vaddq_u32(pfn1_vec, mask_vec);
const uint32x4_t pfn0_end_vec = vaddq_u32(pfn0_vec, mask_vec);
const uint32x4_t cmp1 = vandq_u32(vcgeq_u32(addr_vec, pfn1_vec), vcleq_u32(addr_vec, pfn1_end_vec));
const uint32x4_t cmp0 = vandq_u32(vcgeq_u32(addr_vec, pfn0_vec), vcleq_u32(addr_vec, pfn0_end_vec));
const uint32x4_t lanes_enabled = vorrq_u32(vandq_u32(cached1_vec, cmp1), vandq_u32(cached0_vec, cmp0));
const uint32x2_t tmp = vorr_u32(vget_low_u32(lanes_enabled), vget_high_u32(lanes_enabled));
if (vget_lane_u32(vpmax_u32(tmp, tmp), 0))
return true;
}
#endif
for (; i < size; i++)
{