// 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__A5__F302

#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": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 16, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": true})xyzw"
};
static const char* kernel_copts[] = {
  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": 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": 2, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 3, "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": 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": 1, "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"
};
#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 = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 16, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .PRE_LOAD_V = true }
};

// 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__＊bf16@16_128_T_T_3_0___gfx11xx)xyzw" };
#else
{ R"xyzw(amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx)xyzw" };
#endif
constexpr std::string_view FUNC_NAME { R"xyzw(＊bf16@16_128_T_T_3_0)xyzw" };
constexpr std::string_view ARCH_NAME { R"xyzw(gfx1150)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[] = {
    { 0xba57a266u, 0x0441639du, 334, 202 }, // ba57a2660441639d = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_False__CO__wave1_warp4_stg1--Arch_gfx1150
    { 0xb32c8d7bu, 0x96ce5ee2u, 334, 116 }, // b32c8d7b96ce5ee2 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_False__CO__wave2_warp4_stg1--Arch_gfx1150
    { 0x8bf8056cu, 0x60305b1bu, 334, 167 }, // 8bf8056c60305b1b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_False__CO__wave3_warp4_stg1--Arch_gfx1150
    { 0xe6820b09u, 0xa90ee28bu, 334, 133 }, // e6820b09a90ee28b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_False__CO__wave4_warp4_stg1--Arch_gfx1150
    { 0x95377476u, 0x49f7c39eu, 471, 202 }, // 9537747649f7c39e = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_True__CO__wave1_warp4_stg1--Arch_gfx1150
    { 0x3226573fu, 0x5d39560au, 471, 16 }, // 3226573f5d39560a = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_True__CO__wave2_warp2_stg1--Arch_gfx1150
    { 0xfbb78120u, 0xa801b82eu, 471, 116 }, // fbb78120a801b82e = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_True__CO__wave2_warp4_stg1--Arch_gfx1150
    { 0xd54e1628u, 0x00f54a28u, 471, 33 }, // d54e162800f54a28 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_True__CO__wave3_warp2_stg1--Arch_gfx1150
    { 0xd7819d79u, 0xd92c12afu, 471, 167 }, // d7819d79d92c12af = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_16_16_True__CO__wave3_warp4_stg1--Arch_gfx1150
    { 0xe339b0f4u, 0x5d68110au, 411, 16 }, // e339b0f45d68110a = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_32_16_True__CO__wave2_warp2_stg1--Arch_gfx1150
    { 0x7cfddf2fu, 0x62c4cd8bu, 411, 116 }, // 7cfddf2f62c4cd8b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_32_16_True__CO__wave2_warp4_stg1--Arch_gfx1150
    { 0xe61cec1cu, 0xb8c2a71eu, 411, 33 }, // e61cec1cb8c2a71e = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_32_16_True__CO__wave3_warp2_stg1--Arch_gfx1150
    { 0xd5a19b7au, 0x693dbbd3u, 411, 167 }, // d5a19b7a693dbbd3 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_32_16_True__CO__wave3_warp4_stg1--Arch_gfx1150
    { 0x556de3feu, 0x71ea27f8u, 411, 50 }, // 556de3fe71ea27f8 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_32_16_True__CO__wave4_warp2_stg1--Arch_gfx1150
    { 0xab5fc1e9u, 0xe4e6a2d3u, 235, 116 }, // ab5fc1e9e4e6a2d3 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_False__CO__wave2_warp4_stg1--Arch_gfx1150
    { 0x5aaf7352u, 0xfb34c583u, 235, 167 }, // 5aaf7352fb34c583 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_False__CO__wave3_warp4_stg1--Arch_gfx1150
    { 0x294de437u, 0x24df2b4au, 235, 133 }, // 294de43724df2b4a = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_False__CO__wave4_warp4_stg1--Arch_gfx1150
    { 0xb818f511u, 0xceebfbd5u, 441, 202 }, // b818f511ceebfbd5 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_True__CO__wave1_warp4_stg1--Arch_gfx1150
    { 0x65c96f82u, 0x8c6e6bdfu, 441, 167 }, // 65c96f828c6e6bdf = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_True__CO__wave3_warp4_stg1--Arch_gfx1150
    { 0xde276a38u, 0x1fcabff8u, 441, 133 }, // de276a381fcabff8 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊bf16@16_128_T_T_3_0___gfx11xx__P__2_2_64_32_True__CO__wave4_warp4_stg1--Arch_gfx1150
};

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 gfx1150_mod0
{{ 3, 0, 0, 2, 2, 3, 1, 3, 3, 2},
 { 0, 2, 8, 8, 4, 4, 6, 6, 8, 8},
 { 8, 8, 4, 8, 8, 8, 4, 8, 8, 6},
 { 6, 7,12,12,12,12,12,12,12,12},
 { 4, 7,12,12,12,12,12,12,12, 5},
 { 4, 7,11,13,11,13,11,11,10,10},
 { 6,13,13, 9,14,14,14,14, 9, 9},
 { 7,13,11,11,14,14,15, 9, 9,19},
 { 7,13,11,11,14,14,16,17,19,17},
 { 7,11,13,13,14,14,17,17,17,18}}
// End of GPU gfx1150_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__A5__F302 "
              << "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 = 11;
        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 = 11;
    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 = 0
// A = 0
// Sm_scale = "fp32"
// L = "*fp32:16"
// Q_descale = 0
// stride_bz = 0
// stride_az = 0
// Num_head_q = "i32"
// cu_seqlens_q = "*i32:16"
// BLOCK_DMODEL = 128
// 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 = 3
// Window_left = "i32"
// BIAS_TYPE = 0
// USE_ALIBI = False
// INT8 = False
// persistent_atomic_counter = "*i32"
// Num_CU = "i32"

// SELECT * FROM FLASH$attn_fwd WHERE gpu IN ('gfx1100_mod0') AND inputs$Q_dtype = 'torch.bfloat16' AND inputs$BLOCK_DMODEL = 128 AND inputs$PADDED_HEAD = False AND inputs$ENABLE_DROPOUT = True AND inputs$CAUSAL_TYPE = 3 AND inputs$BIAS_TYPE = 0

// vim: set fileencoding=utf-8

