// 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__F41

#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": true})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": 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": 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": 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": 2, "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": 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": 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": 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": 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": 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 = 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 = 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 = 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 = 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 = 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_48_T_F_0_1___gfx11xx)xyzw" };
#else
{ R"xyzw(amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx)xyzw" };
#endif
constexpr std::string_view FUNC_NAME { R"xyzw(＊fp16@16_48_T_F_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[] = {
    { 0x5f0311f5u, 0xd7b35802u, 456, 16 }, // 5f0311f5d7b35802 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_16_16_True__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x602f1b46u, 0xcc17a71bu, 0, 83 }, // 602f1b46cc17a71b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_False__CO__wave1_warp2_stg1--Arch_gfx1151
    { 0xb484ba25u, 0x5d257c1du, 0, 16 }, // b484ba255d257c1d = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_False__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x078ba72cu, 0xf65067d8u, 0, 50 }, // 078ba72cf65067d8 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_False__CO__wave4_warp2_stg1--Arch_gfx1151
    { 0x78f86e88u, 0xb436c8eau, 366, 83 }, // 78f86e88b436c8ea = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_True__CO__wave1_warp2_stg1--Arch_gfx1151
    { 0x63ed433du, 0x7d4e0f34u, 366, 16 }, // 63ed433d7d4e0f34 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_True__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x8600388eu, 0x5ac79c44u, 366, 33 }, // 8600388e5ac79c44 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_True__CO__wave3_warp2_stg1--Arch_gfx1151
    { 0xc8e975e7u, 0x32d9af67u, 366, 167 }, // c8e975e732d9af67 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_True__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0xc237a8f3u, 0x522f5a3bu, 366, 50 }, // c237a8f3522f5a3b = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_16_True__CO__wave4_warp2_stg1--Arch_gfx1151
    { 0x375ed6ffu, 0xb15699deu, 318, 202 }, // 375ed6ffb15699de = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_False__CO__wave1_warp4_stg1--Arch_gfx1151
    { 0x3da2e6b5u, 0xfc3a5e99u, 318, 167 }, // 3da2e6b5fc3a5e99 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_False__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0xbd1b05ccu, 0x461ccd01u, 318, 133 }, // bd1b05cc461ccd01 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_False__CO__wave4_warp4_stg1--Arch_gfx1151
    { 0xbfc444c2u, 0x8db0319cu, 381, 83 }, // bfc444c28db0319c = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave1_warp2_stg1--Arch_gfx1151
    { 0x15d61e03u, 0xfb1ff9f0u, 381, 202 }, // 15d61e03fb1ff9f0 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave1_warp4_stg1--Arch_gfx1151
    { 0xb1febd56u, 0xd142a0b1u, 381, 16 }, // b1febd56d142a0b1 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave2_warp2_stg1--Arch_gfx1151
    { 0x55e8e89au, 0xd2463437u, 381, 116 }, // 55e8e89ad2463437 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave2_warp4_stg1--Arch_gfx1151
    { 0x7a34ce13u, 0x97d7d017u, 381, 33 }, // 7a34ce1397d7d017 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave3_warp2_stg1--Arch_gfx1151
    { 0x272eb72du, 0x5f0adea5u, 381, 167 }, // 272eb72d5f0adea5 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave3_warp4_stg1--Arch_gfx1151
    { 0x4ec82b2cu, 0x09cc07f6u, 381, 133 }, // 4ec82b2c09cc07f6 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_0_1___gfx11xx__P__0_2_32_32_True__CO__wave4_warp4_stg1--Arch_gfx1151
    { 0xf1924246u, 0x76855550u, 67, 133 }, // f192424676855550 = b2sum -l 64 <<< amd-gfx11xx/flash/attn_fwd/FONLY__＊fp16@16_48_T_F_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
{{ 7,10,11, 9,10,17,13,17,18,15},
 {13,19,10,10,18,15,15,13,15,14},
 { 3, 8, 5, 8, 5, 5, 8,14,16,12},
 { 2, 1, 1, 1, 3,13,17,18,12, 2},
 { 2, 3, 3, 2, 6, 5,18,14,12,14},
 { 8, 2, 6, 4, 6, 6,14,12,12, 0},
 { 6, 1, 5, 4, 4, 4,12,14,15,15},
 { 5, 6, 6, 5, 6, 8,14, 4,14,12},
 { 4, 3, 8, 4, 5, 6,18,13,14,12},
 {19, 3, 5, 8, 5, 5,13,14,12,12}}
// 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__F41 "
              << "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 = 7;
        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 = 7;
    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 = 48
// Head_dim = "i32"
// PADDED_HEAD = True
// ENABLE_DROPOUT = False
// dropout_p = 0
// philox_seed_ptr = 0
// philox_offset1 = 0
// philox_offset2 = 0
// 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$BLOCK_DMODEL = 48 AND inputs$PADDED_HEAD = False AND inputs$ENABLE_DROPOUT = False AND inputs$CAUSAL_TYPE = 0 AND inputs$BIAS_TYPE = 1

// vim: set fileencoding=utf-8

