// 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__A6__F21

#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": 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": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})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": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 0, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 32, "PRE_LOAD_V": true})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": 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": 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": 4, "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": 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": 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": 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": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 4, "num_warps": 4, "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 = 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 = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .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 = true },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 32, .PERSISTENT_TYPE = 0, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .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-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx)xyzw" };
#else
{ R"xyzw(amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx)xyzw" };
#endif
constexpr std::string_view FUNC_NAME { R"xyzw(＊fp16@16_32_F_T_0_1)xyzw" };
constexpr std::string_view ARCH_NAME { R"xyzw(gfx1151)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[] = {
    { 0x8f74c7aeu, 0x53762730u, 0, 83 }, // 8f74c7ae53762730 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_False__CO__wave1_warp2_stg1--Arch_gfx1151
    { 0x2cfaefabu, 0x0cf3e6deu, 0, 16 }, // 2cfaefab0cf3e6de = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_False__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0xf9cf7544u, 0xa9dd9e2cu, 0, 33 }, // f9cf7544a9dd9e2c = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_False__CO__wave3_warp2_stg1--Arch_gfx1151
    { 0x79361886u, 0xcae9d6c7u, 0, 167 }, // 79361886cae9d6c7 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_False__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0x7f8f9d5cu, 0x76271b68u, 0, 50 }, // 7f8f9d5c76271b68 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_False__CO__wave4_warp2_stg1--Arch_gfx1151
    { 0xcf5f2eb5u, 0xd82b0029u, 366, 83 }, // cf5f2eb5d82b0029 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_True__CO__wave1_warp2_stg1--Arch_gfx1151
    { 0x4be81c5fu, 0xf9b2e35bu, 366, 16 }, // 4be81c5ff9b2e35b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_True__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x4ab9baa8u, 0xe682aefdu, 366, 33 }, // 4ab9baa8e682aefd = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_True__CO__wave3_warp2_stg1--Arch_gfx1151
    { 0x7483f580u, 0x7838ba9cu, 366, 50 }, // 7483f5807838ba9c = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_16_True__CO__wave4_warp2_stg1--Arch_gfx1151
    { 0x2c42233fu, 0xee539cfau, 318, 202 }, // 2c42233fee539cfa = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_False__CO__wave1_warp4_stg1--Arch_gfx1151
    { 0xa96d73a6u, 0xa0d14f10u, 318, 33 }, // a96d73a6a0d14f10 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_False__CO__wave3_warp2_stg1--Arch_gfx1151
    { 0xebbd6f7bu, 0x1d38d31du, 318, 167 }, // ebbd6f7b1d38d31d = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_False__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0xa6e852bdu, 0x8f6491d9u, 318, 133 }, // a6e852bd8f6491d9 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_False__CO__wave4_warp4_stg1--Arch_gfx1151
    { 0xe246fcddu, 0xaefa67ccu, 381, 202 }, // e246fcddaefa67cc = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_True__CO__wave1_warp4_stg1--Arch_gfx1151
    { 0xffb1351cu, 0x0e9f2510u, 381, 16 }, // ffb1351c0e9f2510 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_True__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x1c0139beu, 0x0a70968cu, 381, 116 }, // 1c0139be0a70968c = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_True__CO__wave2_warp4_stg1--Arch_gfx1151
    { 0x81ddfe87u, 0x4e941234u, 381, 167 }, // 81ddfe874e941234 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_True__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0xf1412b16u, 0x4d8159bcu, 381, 133 }, // f1412b164d8159bc = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_32_32_True__CO__wave4_warp4_stg1--Arch_gfx1151
    { 0x362e80b7u, 0xca832814u, 67, 133 }, // 362e80b7ca832814 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_32_F_T_0_1___gfx11xx__P__0_2_64_32_False__CO__wave4_warp4_stg1--Arch_gfx1151
};

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 gfx1151_mod0
{{ 3, 9, 9,11,13,16,17,17,17,13},
 { 9,18,18,17,15,13, 7, 8,15,17},
 {17, 0, 4, 6, 6,13, 7, 7, 7, 8},
 {12, 6, 2, 0, 7,17,13,13, 6, 7},
 {10, 8, 8, 5, 7, 6,13, 5, 8, 8},
 { 4, 6, 7, 0, 6, 6, 6, 6, 6, 1},
 { 2, 2, 1, 0, 4, 8, 6, 6, 1,17},
 { 0, 2, 2, 2, 0, 1, 5, 2,14,14},
 { 4, 4, 4, 1, 1, 1, 1,13, 5, 5},
 { 1, 2, 4, 2, 2, 4, 5, 6, 8, 1}}
// End of GPU gfx1151_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__A6__F21 "
              << "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 = 4;
        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 = 4;
    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 = "*fp16:16"
// B = "*fp16:16"
// 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 = 32
// PADDED_HEAD = False
// 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$attn_fwd WHERE gpu IN ('gfx1100_mod0') AND inputs$Q_dtype = 'torch.float16' 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

