// Copyright © 2023-2025 Advanced Micro Devices, Inc.
// SPDX-License-Identifier: MIT

#include "../shim.attn_fwd.h"
#include <aotriton/_internal/triton_kernel.h>
#include <aotriton/_internal/kernel_cluster.h>
#include <aotriton/cpp_tune.h>
#include <string_view>
#ifndef NDEBUG
#include <iostream>
#endif

#define CURRENT_ENTRY_PUBLIC Autotune_attn_fwd__A9__F221

#define ARRAY_SIZE(array)  (sizeof(array) / sizeof(array[0]))

namespace { // Anonymous namespace

using namespace std::literals::string_view_literals;

#if AOTRITON_BUILD_FOR_TUNING
// PSels and Copts in JSON String
static const char* kernel_psels[] = {
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw"
};
static const char* kernel_copts[] = {
  R"xyzw({"waves_per_eu": 1, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 2, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 2, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 2, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 2, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 4, "num_stages": 1})xyzw"
};
#endif

struct PerfFields {
  int16_t BLOCK_M;
    int16_t BLOCK_N;
    int8_t  PERSISTENT_TYPE;
    int8_t  GRID_CU_MULTIP;
    bool    PRE_LOAD_V;
};

static PerfFields image_perf_list [] = {
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false }
};

// u8R generates char8_t which is poorly supported almost everywhere.
constexpr pstring_view PACKAGE_PATH
#if defined(_WIN32)
{ LR"xyzw(amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x)xyzw" };
#else
{ R"xyzw(amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x)xyzw" };
#endif
constexpr std::string_view FUNC_NAME { R"xyzw(＊bf16@16_32_T_T_0_1)xyzw" };
constexpr std::string_view ARCH_NAME { R"xyzw(gfx1201)xyzw" };

// Checksum can be confirmed with `echo -n '<string>' | b2sum -l 64`
// For example:
//   $ echo -n 'amd-gfx110x/flash/attn_fwd/FONLY__^bf16@16,128,False,False,0,0___gfx1100__P__32_32_0_2_False__CO__wave3_warp2_stg1-Gpu-gfx1100' | b2sum -l 64
//   c4b51ee645d79580  -
static AOTRITON_NS::TritonKernelCompactMeta meta_list[] = {
    { 0x2442efe5u, 0xcaa18557u, 302, 83 }, // 2442efe5caa18557 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_16_16_False__CO__wave1_warp2_stg1--Arch_gfx1201
    { 0xf3477aecu, 0xd57677e6u, 0, 83 }, // f3477aecd57677e6 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_16_False__CO__wave1_warp2_stg1--Arch_gfx1201
    { 0x51b3d546u, 0xe578a1f1u, 0, 16 }, // 51b3d546e578a1f1 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_16_False__CO__wave2_warp2_stg1--Arch_gfx1201
    { 0x31fe7fcfu, 0x2f7db0a9u, 0, 33 }, // 31fe7fcf2f7db0a9 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_16_False__CO__wave3_warp2_stg1--Arch_gfx1201
    { 0x2eee99e2u, 0x98e885e8u, 0, 167 }, // 2eee99e298e885e8 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_16_False__CO__wave3_warp4_stg1--Arch_gfx1201
    { 0xd0506e0au, 0x61919cc2u, 0, 50 }, // d0506e0a61919cc2 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_16_False__CO__wave4_warp2_stg1--Arch_gfx1201
    { 0xe036c91fu, 0x5c4f66f9u, 318, 83 }, // e036c91f5c4f66f9 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave1_warp2_stg1--Arch_gfx1201
    { 0x279d12e3u, 0x6340e660u, 318, 202 }, // 279d12e36340e660 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave1_warp4_stg1--Arch_gfx1201
    { 0xa0702948u, 0xcf357071u, 318, 16 }, // a0702948cf357071 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave2_warp2_stg1--Arch_gfx1201
    { 0xa51417b3u, 0x91f6bb65u, 318, 116 }, // a51417b391f6bb65 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave2_warp4_stg1--Arch_gfx1201
    { 0x9c6d974au, 0xff3ecc1du, 318, 33 }, // 9c6d974aff3ecc1d = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave3_warp2_stg1--Arch_gfx1201
    { 0x227952eeu, 0x8bcf45cau, 318, 167 }, // 227952ee8bcf45ca = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave3_warp4_stg1--Arch_gfx1201
    { 0x3cd00120u, 0x0ca47a2fu, 318, 50 }, // 3cd001200ca47a2f = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave4_warp2_stg1--Arch_gfx1201
    { 0xb7b3c963u, 0x99f4dbd5u, 318, 133 }, // b7b3c96399f4dbd5 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_32_32_False__CO__wave4_warp4_stg1--Arch_gfx1201
    { 0xb49e83f8u, 0x0946a71bu, 67, 202 }, // b49e83f80946a71b = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_64_32_False__CO__wave1_warp4_stg1--Arch_gfx1201
    { 0x85a83fc2u, 0x84612f90u, 67, 116 }, // 85a83fc284612f90 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_64_32_False__CO__wave2_warp4_stg1--Arch_gfx1201
    { 0x6b6a6351u, 0x38ff9da6u, 67, 167 }, // 6b6a635138ff9da6 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_64_32_False__CO__wave3_warp4_stg1--Arch_gfx1201
    { 0x314c5683u, 0xde643b37u, 67, 50 }, // 314c5683de643b37 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_64_32_False__CO__wave4_warp2_stg1--Arch_gfx1201
    { 0x97d6b91eu, 0xbc36d528u, 67, 133 }, // 97d6b91ebc36d528 = b2sum -l 64 <<< amd-gfx120x/flash/attn_fwd/FONLY__＊bf16@16_32_T_T_0_1___gfx120x__P__0_2_64_32_False__CO__wave4_warp4_stg1--Arch_gfx1201
};

static constexpr int kTotalNumKernels = ARRAY_SIZE(meta_list);

using AOTRITON_NS::v3::flash::autotune::attn_fwd_packed_string;

static AOTRITON_NS::TritonKernelCluster<kTotalNumKernels>
kernel_cluster(meta_list,
               attn_fwd_packed_string);

static int8_t lut[1][10][10] =
{
// GPU gfx1201_mod0
{{ 4,13, 7, 9, 7,13, 7,13,13,11},
 {11,16,18, 7,12, 8, 6,10, 8,10},
 {13, 0,12, 8, 6, 8, 6, 9,15, 8},
 {13, 2, 2, 6, 6, 9, 9, 7, 8, 8},
 { 7, 5, 6,12,12,12, 6, 8,10,10},
 { 9, 2,16, 6, 6, 6,10,12, 8,13},
 { 8, 3,10, 6,10, 6,12, 6, 8, 6},
 { 8, 3, 1, 1, 8,10,10, 8,10,12},
 { 6, 3, 2,14,12, 8,12,10,17, 8},
 { 2, 2, 1,14, 8, 8, 6, 6, 2, 8}}
// End of GPU gfx1201_mod0
}
;

}; // End of anonymous namespace

namespace AOTRITON_NS::v3::flash::autotune {

// using AOTRITON_NS::v2::flash::AttnFwdContext;

void CURRENT_ENTRY_PUBLIC(AttnFwdContext& context, int mod_number) {
#if AOTRITON_BUILD_FOR_TUNING
    int preferred_index = context._has_preferred_kernel;
    context._total_number_of_kernels = kTotalNumKernels;
#ifndef NDEBUG
    std::cerr << "Autotune_attn_fwd__A9__F221 "
              << "kTotalNumKernels = " << kTotalNumKernels << " "
              << "_has_preferred_kernel = " << preferred_index << " "
              << std::endl;
#endif
    if (preferred_index != -1) {
        if (preferred_index >= kTotalNumKernels)
            return ;
        context.kernel_on_device = kernel_cluster.get(preferred_index);
        context.pp_args_index = 10;
        context.package_path = PACKAGE_PATH;
        context.func_name = FUNC_NAME;
        context.arch_name = ARCH_NAME;
        context._preferred_kernel_psels = kernel_psels[preferred_index];
        context._preferred_kernel_copts = kernel_copts[preferred_index];
        const auto& perf = image_perf_list[preferred_index];
        context.PERSISTENT_TYPE = perf.PERSISTENT_TYPE;
    context.GRID_CU_MULTIP = perf.GRID_CU_MULTIP;
    context.BLOCK_M = perf.BLOCK_M;
    context.BLOCK_N = perf.BLOCK_N;
    context.PRE_LOAD_V = perf.PRE_LOAD_V;
        return ;
    }
#endif
    auto kernel_index = attn_fwd__lut_lambda__0(*context.params, mod_number, lut);
    if (kernel_index < 0) {
      return ;
    }
    context.kernel_on_device = kernel_cluster.get(kernel_index);
    context.pp_args_index = 10;
    context.package_path = PACKAGE_PATH;
    context.func_name = FUNC_NAME;
    context.arch_name = ARCH_NAME;
#ifndef NDEBUG
    std::cerr << __FILE__ << " kernel_index = " << int(kernel_index) << std::endl;
#endif
    const auto& perf = image_perf_list[kernel_index];
    context.PERSISTENT_TYPE = perf.PERSISTENT_TYPE;
    context.GRID_CU_MULTIP = perf.GRID_CU_MULTIP;
    context.BLOCK_M = perf.BLOCK_M;
    context.BLOCK_N = perf.BLOCK_N;
    context.PRE_LOAD_V = perf.PRE_LOAD_V;
}

#undef CURRENT_ENTRY_PUBLIC
}

// Human-readable Signature 
// Q = "*bf16:16"
// B = "*bf16:16"
// A = 0
// Sm_scale = "fp32"
// L = "*fp32:16"
// Q_descale = 0
// stride_az = 0
// Num_head_q = "i32"
// cu_seqlens_q = "*i32:16"
// BLOCK_DMODEL = 32
// Head_dim = "i32"
// PADDED_HEAD = True
// ENABLE_DROPOUT = True
// dropout_p = "fp32"
// philox_seed_ptr = "*u64"
// philox_offset1 = "*u64"
// philox_offset2 = "u64"
// RETURN_ENCODED_SOFTMAX = False
// encoded_softmax = 0
// CAUSAL_TYPE = 0
// Window_left = 0
// BIAS_TYPE = 1
// USE_ALIBI = False
// INT8 = False
// persistent_atomic_counter = 0
// Num_CU = "i32"

// SELECT * FROM FLASH$attn_fwd WHERE gpu IN ('gfx1201_mod0') AND inputs$Q_dtype = 'torch.bfloat16' AND inputs$BLOCK_DMODEL = 32 AND inputs$PADDED_HEAD = False AND inputs$ENABLE_DROPOUT = True AND inputs$CAUSAL_TYPE = 0 AND inputs$BIAS_TYPE = 1

// vim: set fileencoding=utf-8

