File size: 3,099 Bytes
d02d576 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | #pragma once
#if USE_ROCM
#include <hip/hip_common.h>
// Adapted from flashinfer-rocm [PR#491](https://github.com/flashinfer-ai/flashinfer/pull/491)
namespace sgl_hip {
template <>
struct vec_t<float, 1> {
float data;
SGL_HIP_INLINE float& operator[](size_t i) {
return ((float*)(&data))[i];
}
SGL_HIP_INLINE const float& operator[](size_t i) const {
return ((const float*)(&data))[i];
}
SGL_HIP_INLINE float* ptr() {
return reinterpret_cast<float*>(&data);
}
SGL_HIP_INLINE void load(const float* ptr);
SGL_HIP_INLINE void store(float* ptr) const;
template <typename T>
SGL_HIP_INLINE void cast_from(const vec_t<T, 1>& src) {
cast_from_impl(*this, src);
}
template <typename T>
SGL_HIP_INLINE void cast_load(const T* ptr) {
cast_load_impl(*this, ptr);
}
template <typename T>
SGL_HIP_INLINE void cast_store(T* ptr) const {
cast_store_impl(ptr, *this);
}
};
SGL_HIP_INLINE void vec_t<float, 1>::load(const float* ptr) {
data = *ptr;
}
SGL_HIP_INLINE void vec_t<float, 1>::store(float* ptr) const {
*ptr = data;
}
// float x 2
template <>
struct vec_t<float, 2> {
float2 data;
SGL_HIP_INLINE float& operator[](size_t i) {
return ((float*)(&data))[i];
}
SGL_HIP_INLINE const float& operator[](size_t i) const {
return ((const float*)(&data))[i];
}
SGL_HIP_INLINE float* ptr() {
return reinterpret_cast<float*>(&data);
}
SGL_HIP_INLINE void load(const float* ptr);
SGL_HIP_INLINE void store(float* ptr) const;
template <typename T>
SGL_HIP_INLINE void cast_from(const vec_t<T, 2>& src) {
cast_from_impl(*this, src);
}
template <typename T>
SGL_HIP_INLINE void cast_load(const T* ptr) {
cast_load_impl(*this, ptr);
}
template <typename T>
SGL_HIP_INLINE void cast_store(T* ptr) const {
cast_store_impl(ptr, *this);
}
};
SGL_HIP_INLINE void vec_t<float, 2>::load(const float* ptr) {
data = *((float2*)ptr);
}
SGL_HIP_INLINE void vec_t<float, 2>::store(float* ptr) const {
*((float2*)ptr) = data;
}
// float x 4 or more
template <size_t vec_size>
struct vec_t<float, vec_size> {
float4 data[vec_size / 4];
SGL_HIP_INLINE float& operator[](size_t i) {
return ((float*)(data))[i];
}
SGL_HIP_INLINE const float& operator[](size_t i) const {
return ((const float*)(data))[i];
}
SGL_HIP_INLINE float* ptr() {
return reinterpret_cast<float*>(&data);
}
SGL_HIP_INLINE void load(const float* ptr) {
#pragma unroll
for (size_t i = 0; i < vec_size / 4; ++i) {
data[i] = ((float4*)ptr)[i];
}
}
SGL_HIP_INLINE void store(float* ptr) const {
#pragma unroll
for (size_t i = 0; i < vec_size / 4; ++i) {
((float4*)ptr)[i] = data[i];
}
}
template <typename T>
SGL_HIP_INLINE void cast_from(const vec_t<T, vec_size>& src) {
cast_from_impl(*this, src);
}
template <typename T>
SGL_HIP_INLINE void cast_load(const T* ptr) {
cast_load_impl(*this, ptr);
}
template <typename T>
SGL_HIP_INLINE void cast_store(T* ptr) const {
cast_store_impl(ptr, *this);
}
};
} // namespace sgl_hip
#endif
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