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

#include "../shim.bwd_kernel_dk_dv.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_bwd_kernel_dk_dv__A4__F195

#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({"BLOCK_M": 16, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 16, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 16, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 16, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 32})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 32})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 32})xyzw",
  R"xyzw({"BLOCK_M": 32, "BLOCK_N": 32})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 16})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 64})xyzw",
  R"xyzw({"BLOCK_M": 64, "BLOCK_N": 64})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": 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": 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": 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": 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;
};

static PerfFields image_perf_list [] = {
    { .BLOCK_M = 16, .BLOCK_N = 16 },
    { .BLOCK_M = 16, .BLOCK_N = 16 },
    { .BLOCK_M = 16, .BLOCK_N = 16 },
    { .BLOCK_M = 16, .BLOCK_N = 16 },
    { .BLOCK_M = 32, .BLOCK_N = 16 },
    { .BLOCK_M = 32, .BLOCK_N = 16 },
    { .BLOCK_M = 32, .BLOCK_N = 16 },
    { .BLOCK_M = 32, .BLOCK_N = 16 },
    { .BLOCK_M = 32, .BLOCK_N = 32 },
    { .BLOCK_M = 32, .BLOCK_N = 32 },
    { .BLOCK_M = 32, .BLOCK_N = 32 },
    { .BLOCK_M = 32, .BLOCK_N = 32 },
    { .BLOCK_M = 64, .BLOCK_N = 16 },
    { .BLOCK_M = 64, .BLOCK_N = 16 },
    { .BLOCK_M = 64, .BLOCK_N = 16 },
    { .BLOCK_M = 64, .BLOCK_N = 16 },
    { .BLOCK_M = 64, .BLOCK_N = 64 },
    { .BLOCK_M = 64, .BLOCK_N = 64 }
};

// u8R generates char8_t which is poorly supported almost everywhere.
constexpr pstring_view PACKAGE_PATH
#if defined(_WIN32)
{ LR"xyzw(amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx)xyzw" };
#else
{ R"xyzw(amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx)xyzw" };
#endif
constexpr std::string_view FUNC_NAME { R"xyzw(＊bf16@16_16_0_F_T_1)xyzw" };
constexpr std::string_view ARCH_NAME { R"xyzw(gfx1103)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[] = {
    { 0xb99460dbu, 0x8b415d4bu, 0, 29 }, // b99460db8b415d4b = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__16_16__CO__wave1_warp2_stg1--Arch_gfx1103
    { 0x348460beu, 0x4d941be5u, 0, 6 }, // 348460be4d941be5 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__16_16__CO__wave2_warp2_stg1--Arch_gfx1103
    { 0xcd2a3630u, 0x76da5a29u, 0, 46 }, // cd2a363076da5a29 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__16_16__CO__wave3_warp2_stg1--Arch_gfx1103
    { 0x24b915e7u, 0x7f57f024u, 0, 63 }, // 24b915e77f57f024 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__16_16__CO__wave4_warp2_stg1--Arch_gfx1103
    { 0xe85fcd77u, 0x21a8cad8u, 23, 29 }, // e85fcd7721a8cad8 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_16__CO__wave1_warp2_stg1--Arch_gfx1103
    { 0xf9ec4759u, 0x511d8d7eu, 23, 6 }, // f9ec4759511d8d7e = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_16__CO__wave2_warp2_stg1--Arch_gfx1103
    { 0x69286c89u, 0xac99a32cu, 23, 46 }, // 69286c89ac99a32c = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_16__CO__wave3_warp2_stg1--Arch_gfx1103
    { 0x2c51256au, 0xb954aec9u, 23, 63 }, // 2c51256ab954aec9 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_16__CO__wave4_warp2_stg1--Arch_gfx1103
    { 0x43c66210u, 0x5709dfc9u, 80, 109 }, // 43c662105709dfc9 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_32__CO__wave1_warp4_stg1--Arch_gfx1103
    { 0x90aaef21u, 0x2335159au, 80, 126 }, // 90aaef212335159a = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_32__CO__wave2_warp4_stg1--Arch_gfx1103
    { 0x9f2cd611u, 0x7ad6ebd4u, 80, 86 }, // 9f2cd6117ad6ebd4 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_32__CO__wave3_warp4_stg1--Arch_gfx1103
    { 0xf743b326u, 0xea9d2bc8u, 80, 143 }, // f743b326ea9d2bc8 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__32_32__CO__wave4_warp4_stg1--Arch_gfx1103
    { 0x7b0e0834u, 0x3ca97cc2u, 103, 109 }, // 7b0e08343ca97cc2 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_16__CO__wave1_warp4_stg1--Arch_gfx1103
    { 0x2e4165adu, 0x8f0c8319u, 103, 126 }, // 2e4165ad8f0c8319 = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_16__CO__wave2_warp4_stg1--Arch_gfx1103
    { 0x2eb95729u, 0xcdc49c5fu, 103, 86 }, // 2eb95729cdc49c5f = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_16__CO__wave3_warp4_stg1--Arch_gfx1103
    { 0xe58697c5u, 0x03e8db8du, 103, 143 }, // e58697c503e8db8d = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_16__CO__wave4_warp4_stg1--Arch_gfx1103
    { 0xafb3c89fu, 0x7b2b9f5du, 166, 86 }, // afb3c89f7b2b9f5d = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_64__CO__wave3_warp4_stg1--Arch_gfx1103
    { 0xc249a430u, 0x3fdc336eu, 166, 143 }, // c249a4303fdc336e = b2sum -l 64 <<< amd-gfx11xx/flash/bwd_kernel_dk_dv/FONLY__＊bf16@16_16_0_F_T_1___gfx11xx__P__64_64__CO__wave4_warp4_stg1--Arch_gfx1103
};

static constexpr int kTotalNumKernels = ARRAY_SIZE(meta_list);

using AOTRITON_NS::v3::flash::autotune::bwd_kernel_dk_dv_packed_string;

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

static int8_t lut[1][10][10] =
{
// GPU gfx1103_mod0
{{ 4, 5, 7, 5, 4, 7, 6,11, 5, 6},
 { 7, 6, 0, 0, 0, 7, 0, 2, 3, 1},
 { 6, 5, 7, 6, 4, 5,11, 9, 7, 3},
 {14, 7, 6, 0, 4, 4, 9, 8, 8, 8},
 {12, 4, 4, 5, 4, 5, 8,16,10, 9},
 {15, 7, 4, 6, 5, 6, 8,10,17,16},
 {14, 7, 7, 5, 5, 7, 9,17,17,16},
 {14, 7, 6, 6, 4,16,16,16,17,16},
 {14, 7, 7,16,16,16,16,16, 5,16},
 {13, 6,16,16,16,16,16,16,16,16}}
// End of GPU gfx1103_mod0
}
;

}; // End of anonymous namespace

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

// using AOTRITON_NS::v2::flash::BwdKernelDkDvContext;

void CURRENT_ENTRY_PUBLIC(BwdKernelDkDvContext& 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_bwd_kernel_dk_dv__A4__F195 "
              << "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 = 1;
        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.BLOCK_M = perf.BLOCK_M;
    context.BLOCK_N = perf.BLOCK_N;
        return ;
    }
#endif
    auto kernel_index = bwd_kernel_dk_dv__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 = 1;
    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.BLOCK_M = perf.BLOCK_M;
    context.BLOCK_N = perf.BLOCK_N;
}

#undef CURRENT_ENTRY_PUBLIC
}

// Human-readable Signature 
// Q = "*bf16:16"
// sm_scale = "fp32"
// L = "*fp32:16"
// D = "*fp32:16"
// num_head_q = "i32"
// cu_seqlens_q = "*i32:16"
// num_seqlens = "i32"
// dropout_p = 0
// philox_seed_ptr = 0
// philox_offset1 = 0
// philox_offset2 = 0
// Window_left = 0
// BLOCK_DMODEL = 16
// CAUSAL_TYPE = 0
// ENABLE_DROPOUT = False
// PADDED_HEAD = True
// BIAS_TYPE = 1

// SELECT * FROM FLASH$bwd_kernel_dk_dv WHERE gpu IN ('gfx1100_mod0') AND inputs$Q_dtype = 'torch.bfloat16' AND inputs$BLOCK_DMODEL = 16 AND inputs$CAUSAL_TYPE = 0 AND inputs$ENABLE_DROPOUT = False AND inputs$PADDED_HEAD = False AND inputs$BIAS_TYPE = 1

// vim: set fileencoding=utf-8

