// 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/_internal/log.h>
#include <aotriton/cpp_tune.h>
#include <assert.h>
#include <string_view>

#define CURRENT_ENTRY_PUBLIC Autotune_attn_fwd__A0__F50

#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": 32, "BLOCK_N": 16, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 32, "BLOCK_N": 16, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 32, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 64, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 128, "BLOCK_N": 128, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 256, "BLOCK_N": 64, "PRE_LOAD_V": false, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 256, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})xyzw",
  R"xyzw({"PERSISTENT_TYPE": 2, "GRID_CU_MULTIP": 2, "BLOCK_M": 256, "BLOCK_N": 64, "PRE_LOAD_V": true, "NUM_XCDS": 8})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": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 2, "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": 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": 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": 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": 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": 1, "num_warps": 4, "num_stages": 1})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 8, "num_stages": 4})xyzw",
  R"xyzw({"waves_per_eu": 1, "num_warps": 8, "num_stages": 4})xyzw",
  R"xyzw({"waves_per_eu": 2, "num_warps": 8, "num_stages": 4})xyzw"
};
#endif

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

static PerfFields image_perf_list [] = {
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 32, .BLOCK_N = 16, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 32, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 64, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 128, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 128, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 128, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 128, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 128, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 128, .BLOCK_N = 128, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 256, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = false },
    { .BLOCK_M = 256, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true },
    { .BLOCK_M = 256, .BLOCK_N = 64, .PERSISTENT_TYPE = 2, .GRID_CU_MULTIP = 2, .NUM_XCDS = 8, .PRE_LOAD_V = true }
};

// u8R generates char8_t which is poorly supported almost everywhere.
// TODO: deduplicate FLATZIP_PATH via shim.cc packed_string
constexpr pstring_view FLATZIP_PATH
#if defined(_WIN32)
{ LR"xyzw(amd-gfx950/flash/attn_fwd.zip)xyzw" };
#else
{ R"xyzw(amd-gfx950/flash/attn_fwd.zip)xyzw" };
#endif
constexpr std::string_view FUNC_NAME   { R"xyzw(Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0)xyzw"   };
constexpr std::string_view ARCH_NAME { R"xyzw(gfx950)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[] = {
    { 0xf203445cu, 0x70e37f65u, 1291, 209 }, // f203445c70e37f65 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=32;BLOCK_N=16;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=2;num_stages=1;;arch=gfx950
    { 0x7720f510u, 0x47877484u, 1291, 333 }, // 7720f51047877484 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=32;BLOCK_N=16;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=2;num_stages=1;;arch=gfx950
    { 0x3628235fu, 0xb716738fu, 1291, 84 }, // 3628235fb716738f = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=32;BLOCK_N=16;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=3;num_warps=2;num_stages=1;;arch=gfx950
    { 0x01d7fc97u, 0x8e3ed51cu, 1291, 413 }, // 01d7fc978e3ed51c = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=32;BLOCK_N=16;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=4;num_warps=2;num_stages=1;;arch=gfx950
    { 0x8de30042u, 0x00853d9bu, 1375, 664 }, // 8de3004200853d9b = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=32;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0x61a1cb6fu, 0x30b8388bu, 1375, 373 }, // 61a1cb6f30b8388b = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=32;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=4;num_stages=1;;arch=gfx950
    { 0x9efecdebu, 0x1698e1c3u, 1460, 664 }, // 9efecdeb1698e1c3 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=32;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0x536fb6dbu, 0x1f91d816u, 1544, 664 }, // 536fb6db1f91d816 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0xb28cecd4u, 0x3df4ef97u, 1544, 373 }, // b28cecd43df4ef97 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=4;num_stages=1;;arch=gfx950
    { 0x5873bd02u, 0xa6a1b1f9u, 1629, 209 }, // 5873bd02a6a1b1f9 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=2;num_stages=1;;arch=gfx950
    { 0xd906aa8au, 0x3f86ccf0u, 1629, 664 }, // d906aa8a3f86ccf0 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0xcee93a6fu, 0x4fd3d369u, 1629, 333 }, // cee93a6f4fd3d369 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=2;num_stages=1;;arch=gfx950
    { 0x2c307956u, 0xe72c4f2fu, 1629, 373 }, // 2c307956e72c4f2f = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=64;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=4;num_stages=1;;arch=gfx950
    { 0x7c0f2fdau, 0xd0757393u, 1713, 209 }, // 7c0f2fdad0757393 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=2;num_stages=1;;arch=gfx950
    { 0x80baaeddu, 0xe2903fb1u, 1713, 664 }, // 80baaedde2903fb1 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0x9c77418bu, 0x59fcc012u, 1713, 373 }, // 9c77418b59fcc012 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=4;num_stages=1;;arch=gfx950
    { 0x07f3af63u, 0x56b4e10cu, 1799, 664 }, // 07f3af6356b4e10c = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0x8a1a357eu, 0x1fe8739bu, 1799, 373 }, // 8a1a357e1fe8739b = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=4;num_stages=1;;arch=gfx950
    { 0x32713d28u, 0xf427314au, 1971, 664 }, // 32713d28f427314a = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=128;BLOCK_N=128;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=4;num_stages=1;;arch=gfx950
    { 0xa4e45f8eu, 0x61056000u, 2057, 876 }, // a4e45f8e61056000 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=256;BLOCK_N=64;PRE_LOAD_V=False;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=8;num_stages=4;;arch=gfx950
    { 0xe814e00fu, 0x3c224242u, 2143, 876 }, // e814e00f3c224242 = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=256;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=1;num_warps=8;num_stages=4;;arch=gfx950
    { 0xdca9ac0eu, 0x5a05eacbu, 2143, 916 }, // dca9ac0e5a05eacb = b2sum -l 64 <<< amd-gfx950/flash/attn_fwd.zip;;#F;Q='*fp16:16';BLOCK_DMODEL=64;PADDED_HEAD=False;ENABLE_DROPOUT=False;CAUSAL_TYPE=3;BIAS_TYPE=0;;#P;PERSISTENT_TYPE=2;GRID_CU_MULTIP=2;BLOCK_M=256;BLOCK_N=64;PRE_LOAD_V=True;NUM_XCDS=8;;#CO;waves_per_eu=2;num_warps=8;num_stages=4;;arch=gfx950
};

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 gfx950_mod0
{{ 0, 0, 0, 0, 0, 1, 1, 1, 1, 1},
 { 2, 0, 0, 3, 2, 1, 0, 2, 0, 0},
 { 1, 0,10, 7, 8,10,10,10, 7,10},
 { 3, 3,10,10,12,10,10,12,12,12},
 { 1, 1,10,12, 9, 9,11,11, 9,11},
 { 3, 6,10, 9, 9,18,18, 9,18,11},
 { 4, 4,17,16,18,18,18,18,18,18},
 {14, 5,17,18,18,18,18,18,18,18},
 {20,19,13,16,18,18,18,18,18,18},
 {21,20,15,16,16,18,18,18,18,18}}
// End of GPU gfx950_mod0
}
;

}; // End of anonymous namespace

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

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

// Returns the selected kernel_index, or -1 when no valid kernel was selected.
// The kernel_index is logged by the caller (lookup_optimal in shim.cc) so the
// AOTRITON_LOG machinery is not duplicated across every generated autotune TU.
int CURRENT_ENTRY_PUBLIC(AttnFwdContext& context, int mod_number) {
#if AOTRITON_BUILD_FOR_TUNING
    constexpr int kLutInTuningModeAlwaysReturnZero = 0;
    AOTRITON_LOG(LOG_DEBUG,
                 "Autotune_attn_fwd__A0__F50 "
                 "kTotalNumKernels = %d _has_preferred_kernel = %d",
                 kTotalNumKernels, context._has_preferred_kernel);
#ifndef NDEBUG
    assert(attn_fwd__lut_lambda__0(*context.params, mod_number, lut) == kLutInTuningModeAlwaysReturnZero);
#endif
    int preferred = context._has_preferred_kernel;
    int kernel_index = preferred < 0 ? kLutInTuningModeAlwaysReturnZero : preferred;
#else
    auto kernel_index = attn_fwd__lut_lambda__0(*context.params, mod_number, lut);
#endif
    if (kernel_index < 0 || kernel_index >= kTotalNumKernels) {
        return -1;
    }
    context.kernel_on_device = kernel_cluster.get(kernel_index);
    context.pp_args_index = 2;
    context.flatzip_path = FLATZIP_PATH;
    // aks2_entry IS the func_name (supplied by f.unified_signature)
    context.aks2_entry   = FUNC_NAME;
    context.func_name = FUNC_NAME;
    context.arch_name = ARCH_NAME;
#if AOTRITON_BUILD_FOR_TUNING
    context._total_number_of_kernels = kTotalNumKernels;
    context._preferred_kernel_psels = kernel_psels[kernel_index];
    context._preferred_kernel_copts = kernel_copts[kernel_index];
#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;
    context.NUM_XCDS = perf.NUM_XCDS;
    return kernel_index;
}

#undef CURRENT_ENTRY_PUBLIC
}

// Human-readable Signature 
// Q = "*fp16:16"
// Sm_scale = "fp32"
// L = "*fp32:16"
// Q_descale = 0
// stride_bz = 0
// stride_bh = 0
// stride_bm = 0
// stride_az = 0
// Num_head_q = "i32"
// cu_seqlens_q = "*i32:16"
// BLOCK_DMODEL = 64
// Hdim_qk = 64
// PADDED_HEAD = False
// ENABLE_DROPOUT = False
// dropout_p = 0
// philox_seed_ptr = 0
// philox_offset2 = 0
// RETURN_ENCODED_SOFTMAX = False
// CAUSAL_TYPE = 3
// Window_left = "i32"
// Window_right = "i32"
// BIAS_TYPE = 0
// USE_ALIBI = False
// INT8 = False
// persistent_atomic_counter = "*i32"
// Num_CU = "i32"

// ('SELECT * FROM FLASH$attn_fwd WHERE gpu IN (?) AND inputs$Q_dtype = ? AND inputs$BLOCK_DMODEL = ? AND inputs$PADDED_HEAD = ? AND inputs$ENABLE_DROPOUT = ? AND inputs$CAUSAL_TYPE = ? AND inputs$BIAS_TYPE = ?', ['gfx950_mod0', 'torch.float16', 64, False, False, 3, 0])

// vim: set fileencoding=utf-8

