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| author | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
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| committer | Mitja Felicijan <mitja.felicijan@gmail.com> | 2026-02-12 20:57:17 +0100 |
| commit | b333b06772c89d96aacb5490d6a219fba7c09cc6 (patch) | |
| tree | 211df60083a5946baa2ed61d33d8121b7e251b06 /llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl | |
| download | llmnpc-b333b06772c89d96aacb5490d6a219fba7c09cc6.tar.gz | |
Engage!
Diffstat (limited to 'llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl')
| -rw-r--r-- | llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl b/llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl new file mode 100644 index 0000000..9fb4347 --- /dev/null +++ b/llama.cpp/ggml/src/ggml-opencl/kernels/cvt.cl @@ -0,0 +1,366 @@ +//------------------------------------------------------------------------------ +// This file is contains kernels for data conversion. +// These kernels are used when loading the model, so its performance is less +// important. +//------------------------------------------------------------------------------ +#pragma OPENCL EXTENSION cl_khr_fp16 : enable + +#ifdef cl_intel_required_subgroup_size +#pragma OPENCL EXTENSION cl_intel_required_subgroup_size : enable +#define INTEL_GPU 1 +#define REQD_SUBGROUP_SIZE_16 __attribute__((intel_reqd_sub_group_size(16))) +#define REQD_SUBGROUP_SIZE_32 __attribute__((intel_reqd_sub_group_size(32))) +#elif defined(cl_qcom_reqd_sub_group_size) +#pragma OPENCL EXTENSION cl_qcom_reqd_sub_group_size : enable +#define ADRENO_GPU 1 +#define REQD_SUBGROUP_SIZE_64 __attribute__((qcom_reqd_sub_group_size("half"))) +#define REQD_SUBGROUP_SIZE_128 __attribute__((qcom_reqd_sub_group_size("full"))) +#endif + +#define QK4_0 32 +#define QR4_0 2 +#define QK4_1 32 +#define QR4_1 2 +#define QK5_0 32 +#define QR5_0 2 +#define QK5_1 32 +#define QR5_1 2 +#define QK8_0 32 +#define QR8_0 1 +#define QK_K 256 +#define K_QUANTS_PER_ITERATION 2 + +typedef char int8_t; +typedef uchar uint8_t; +typedef short int16_t; +typedef ushort uint16_t; +typedef int int32_t; +typedef uint uint32_t; + +//------------------------------------------------------------------------------ +// block_q4_0 +//------------------------------------------------------------------------------ +struct block_q4_0 +{ + half d; + uint8_t qs[QK4_0 / 2]; +}; + +//------------------------------------------------------------------------------ +// block_q6_K +//------------------------------------------------------------------------------ +struct block_q6_K { + uint8_t ql[QK_K/2]; // quants, lower 4 bits + uint8_t qh[QK_K/4]; // quants, upper 2 bits + int8_t scales[QK_K/16]; // scales, quantized with 8 bits + half d; // super-block scale +}; + +//------------------------------------------------------------------------------ +// kernel_convert_block_q4_0 +// Convert the block_q4_0 format to 2 separate arrays (AOS -> SOA). +// This kernel does not deshuffle the bits. +//------------------------------------------------------------------------------ +kernel void kernel_convert_block_q4_0( + global struct block_q4_0 * src0, + global uchar * dst_q, + global half * dst_d +) { + global struct block_q4_0 * b = (global struct block_q4_0 *) src0 + get_global_id(0); + global uchar * q = (global uchar *) dst_q + QK4_0/2*get_global_id(0); + global half * d = (global half *) dst_d + get_global_id(0); + + *d = b->d; + + for (int i = 0; i < QK4_0/2; ++i) { + q[i] = b->qs[i]; + } +} + +kernel void kernel_restore_block_q4_0( + global uchar * src_q, + global half * src_d, + global struct block_q4_0 * dst +) { + global struct block_q4_0 * b = (global struct block_q4_0 *) dst + get_global_id(0); + global uchar * q = (global uchar *) src_q + QK4_0/2*get_global_id(0); + global half * d = (global half *) src_d + get_global_id(0); + + b->d = *d; + for (int i = 0; i < QK4_0/2; ++i) { + b->qs[i] = q[i]; + } +} + +//------------------------------------------------------------------------------ +// kernel_convert_block_q4_0_noshuffle +// Flatten q4_0 weights and unshuffle the bits +//------------------------------------------------------------------------------ + +kernel void kernel_convert_block_q4_0_noshuffle( + global struct block_q4_0 * src0, + global uchar * dst_q, + global half * dst_d +) { + global struct block_q4_0 * b = (global struct block_q4_0 *) src0 + get_global_id(0); + global uchar * q = (global uchar *) dst_q + QK4_0/2*get_global_id(0); + global half * d = (global half *) dst_d + get_global_id(0); + + *d = b->d; + for (int i = 0; i < QK4_0/4; ++i) { + uchar x0 = b->qs[2*i + 0]; + uchar x1 = b->qs[2*i + 1]; + + q[i + 0 ] = convert_uchar(x0 & 0x0F) | convert_uchar((x1 & 0x0F) << 4); + q[i + QK4_0/4] = convert_uchar((x0 & 0xF0) >> 4) | convert_uchar(x1 & 0xF0); + +#ifdef ADRENO_GPU + // Workaround for adreno - must have the following printf statement for + // the kernel to work properly. Otherwise it produces incorrect result. + // convert_uchar above also seems necessary. + // Compare against a large number so that it does not print anything. + // get_sub_group_local_id() also works. + if (get_global_id(0) == 65536*4096) { + printf("%04x - %02x\n", *(global ushort*)d, ((x0 & 0xF0) >> 4) | (x1 & 0xF0)); + } +#endif + } +} + +kernel void kernel_restore_block_q4_0_noshuffle( + global uchar * src_q, + global half * src_d, + global struct block_q4_0 * dst, + uchar mask_0F, + uchar mask_F0 +) { + global struct block_q4_0 * b = (global struct block_q4_0 *) dst + get_global_id(0); + global uchar * q = (global uchar *) src_q + QK4_0/2*get_global_id(0); + global half * d = (global half *) src_d + get_global_id(0); + + b->d = *d; + for (int i = 0; i < QK4_0/4; ++i) { + uchar x0 = q[i + 0 ] ; + uchar x1 = q[i + QK4_0/4]; + + b->qs[2*i + 0] = convert_uchar((x0 & mask_0F) | ((x1 & mask_0F) << 4)); + b->qs[2*i + 1] = convert_uchar(((x0 & mask_F0) >> 4) | (x1 & mask_F0)); + } +} + +//------------------------------------------------------------------------------ +// block_mxfp4 +//------------------------------------------------------------------------------ +#define QK_MXFP4 32 +struct block_mxfp4 { + uchar e; // E8M0 + uchar qs[QK_MXFP4 / 2]; +}; + +//------------------------------------------------------------------------------ +// kernel_convert_block_mxfp4 +// Convert the block_mxfp4 format to 2 separate arrays (AOS -> SOA). +// This kernel does not deshuffle the bits. +//------------------------------------------------------------------------------ +kernel void kernel_convert_block_mxfp4( + global struct block_mxfp4 * src0, + global uchar * dst_q, + global uchar * dst_e +) { + global struct block_mxfp4 * b = (global struct block_mxfp4 *) src0 + get_global_id(0); + global uchar * q = (global uchar *) dst_q + QK_MXFP4 / 2 * get_global_id(0); + global uchar * e = (global uchar *) dst_e + get_global_id(0); + + *e = b->e; + + for (int i = 0; i < QK_MXFP4 / 2; ++i) { + q[i] = b->qs[i]; + } +} + +kernel void kernel_convert_block_mxfp4_trans( + global struct block_mxfp4 * src0, + __global uint4 * dst_q, + __global uchar * dst_e, + uint ne00, + uint ne01 +) { + int i00 = get_global_id(1); + uint i01 = get_global_id(0); + uint i02 = get_global_id(2); + + uint ne00_blk = ne00 / QK_MXFP4; + uint src_blk_offset = i00 + i01 * ne00_blk + i02 * ne00_blk * ne01; + uint dst_blk_offset = i01 + i00 * ne01 + i02 * ne00_blk * ne01; + + global struct block_mxfp4 * b = src0 + src_blk_offset; + + dst_q[dst_blk_offset] = ((global uint4 *)(&(b->qs[0])))[0]; + dst_e[dst_blk_offset] = b->e; +} + +kernel void kernel_restore_block_mxfp4( + global uchar * src_q, + global half * src_e, + global struct block_mxfp4 * dst +) { + global struct block_mxfp4 * b = (global struct block_mxfp4 *) dst + get_global_id(0); + global uchar * q = (global uchar *) src_q + QK_MXFP4 / 2 * get_global_id(0); + global uchar * e = (global uchar *) src_e + get_global_id(0); + + b->e = *e; + for (int i = 0; i < QK_MXFP4 / 2; ++i) { + b->qs[i] = q[i]; + } +} + +kernel void kernel_restore_block_mxfp4_trans( + __global uint4 * src_q, + __global uchar * src_e, + global struct block_mxfp4 * dst, + uint ne00, + uint ne01 +) { + int i00 = get_global_id(1); + uint i01 = get_global_id(0); + uint i02 = get_global_id(2); + + uint ne00_blk = ne00 / QK_MXFP4; + uint src_blk_offset = i01 + i00 * ne01 + i02 * ne00_blk * ne01; + uint dst_blk_offset = i00 + i01 * ne00_blk + i02 * ne00_blk * ne01; + + global struct block_mxfp4 * b = dst + dst_blk_offset; + + ((global uint4 *)(&(b->qs[0])))[0] = src_q[src_blk_offset]; + b->e = src_e[src_blk_offset]; +} + +//------------------------------------------------------------------------------ +// block_q8_0 +//------------------------------------------------------------------------------ +typedef struct { + half d; // delta + char qs[QK8_0]; // quants +} block_q8_0; + +kernel void kernel_convert_block_q8_0( + global block_q8_0 * src0, + global uchar * dst_q, + global half * dst_d +) { + global block_q8_0 * b = (global block_q8_0 *) src0 + get_global_id(0); + global uchar * q = (global uchar *) dst_q + QK8_0*get_global_id(0); + global half * d = (global half *) dst_d + get_global_id(0); + + *d = b->d; + + for (int i = 0; i < QK8_0; ++i) { + q[i] = b->qs[i]; + } +} + +kernel void kernel_restore_block_q8_0( + global uchar * src_q, + global half * src_d, + global block_q8_0 * dst +) { + global block_q8_0 * b = (global block_q8_0 *) dst + get_global_id(0); + global uchar * q = (global uchar *) src_q + QK8_0*get_global_id(0); + global half * d = (global half *) src_d + get_global_id(0); + + b->d = *d; + for (int i = 0; i < QK8_0; ++i) { + b->qs[i] = q[i]; + } +} + +kernel void kernel_restore_block_q8_0_trans( + global uchar * src_q, + global half * src_d, + global block_q8_0 * dst, + uint ne00, + uint ne01 +){ + uint num_blk_per_row = ne00 / QK8_0; + + global block_q8_0 * b = (global block_q8_0 *) dst + get_global_id(0) * num_blk_per_row; + global uchar * q = (global uchar *) src_q + get_global_id(0) * 4; // 4 8-bit packed + global half * d = (global half *) src_d + get_global_id(0); + + for (uint blk = 0; blk < num_blk_per_row; blk++) { + b->d = *d; + + for (uint i = 0; i < QK8_0; i+=4) { + b->qs[i] = q[0]; + b->qs[i+1] = q[1]; + b->qs[i+2] = q[2]; + b->qs[i+3] = q[3]; + + q += 4 * ne01; // M stride + } + + d += ne01; + + b++; + } +} + +//------------------------------------------------------------------------------ +// kernel_convert_block_q6_K +// Convert the block_q6_K format to 3 separate arrays (AOS -> SOA). +// This kernel does not deshuffle the bits. +// Each thread processes a super block. +//------------------------------------------------------------------------------ +kernel void kernel_convert_block_q6_K( + global struct block_q6_K * src0, + global uchar * dst_ql, + global uchar * dst_qh, + global char * dst_s, + global half * dst_d +) { + global struct block_q6_K * b = (global struct block_q6_K *) src0 + get_global_id(0); + global uchar * ql = (global uchar *) dst_ql + QK_K/2*get_global_id(0); + global uchar * qh = (global uchar *) dst_qh + QK_K/4*get_global_id(0); + global char * s = (global char *) dst_s + QK_K/16*get_global_id(0); + global half * d = (global half *) dst_d + get_global_id(0); + + *d = b->d; + + for (int i = 0; i < QK_K/2; ++i) { + ql[i] = b->ql[i]; + } + for (int i = 0; i < QK_K/4; ++i) { + qh[i] = b->qh[i]; + } + for (int i = 0; i < QK_K/16; ++i) { + s[i] = b->scales[i]; + } +} + +// Restore block_q6_K from flattened arrays. +// Each thread processes a super block. +kernel void kernel_restore_block_q6_K( + global uchar * dst_ql, + global uchar * dst_qh, + global char * dst_s, + global half * dst_d, + global struct block_q6_K * dst +) { + global struct block_q6_K * b = (global struct block_q6_K *) dst + get_global_id(0); + global uchar * ql = (global uchar *) dst_ql + QK_K/2*get_global_id(0); + global uchar * qh = (global uchar *) dst_qh + QK_K/4*get_global_id(0); + global char * s = (global char *) dst_s + QK_K/16*get_global_id(0); + global half * d = (global half *) dst_d + get_global_id(0); + + b->d = *d; + + for (int i = 0; i < QK_K/2; ++i) { + b->ql[i] = ql[i]; + } + for (int i = 0; i < QK_K/4; ++i) { + b->qh[i] = qh[i]; + } + for (int i = 0; i < QK_K/16; ++i) { + b->scales[i] = s[i]; + } +} |
