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It's possible to implement the kernel entirely in registers, since all offsets are known throughout the algorithm's lifetime
This commit is contained in:
Jens Steube
GitHub
parent
91a67f2c8a
commit
b7aabe4cb4
@ -17,20 +17,18 @@
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#define COMPARE_S M2S(INCLUDE_PATH/inc_comp_single.cl)
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#define COMPARE_M M2S(INCLUDE_PATH/inc_comp_multi.cl)
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#define SHA512_DIGEST_LENGTH 64
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typedef struct shiro1_sha512_tmp
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{
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u64 dgst[8];
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u64 out[8]; // Final output hash
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u32 dgst[16];
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} shiro1_sha512_tmp_t;
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KERNEL_FQ void m12150_init (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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KERNEL_FQ KERNEL_FA void m12150_init (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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{
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const u32 gid = get_global_id (0);
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if (gid >= GID_CNT) return;
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sha512_ctx_t ctx;
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sha512_init (&ctx);
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@ -41,75 +39,125 @@ KERNEL_FQ void m12150_init (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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sha512_final (&ctx);
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for (int i = 0; i < 8; i++) {
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tmps[gid].dgst[i] = ctx.h[i];
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tmps[gid].out[i] = ctx.h[i];
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}
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tmps[gid].dgst[ 0] = h32_from_64_S (ctx.h[0]);
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tmps[gid].dgst[ 1] = l32_from_64_S (ctx.h[0]);
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tmps[gid].dgst[ 2] = h32_from_64_S (ctx.h[1]);
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tmps[gid].dgst[ 3] = l32_from_64_S (ctx.h[1]);
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tmps[gid].dgst[ 4] = h32_from_64_S (ctx.h[2]);
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tmps[gid].dgst[ 5] = l32_from_64_S (ctx.h[2]);
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tmps[gid].dgst[ 6] = h32_from_64_S (ctx.h[3]);
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tmps[gid].dgst[ 7] = l32_from_64_S (ctx.h[3]);
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tmps[gid].dgst[ 8] = h32_from_64_S (ctx.h[4]);
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tmps[gid].dgst[ 9] = l32_from_64_S (ctx.h[4]);
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tmps[gid].dgst[10] = h32_from_64_S (ctx.h[5]);
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tmps[gid].dgst[11] = l32_from_64_S (ctx.h[5]);
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tmps[gid].dgst[12] = h32_from_64_S (ctx.h[6]);
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tmps[gid].dgst[13] = l32_from_64_S (ctx.h[6]);
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tmps[gid].dgst[14] = h32_from_64_S (ctx.h[7]);
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tmps[gid].dgst[15] = l32_from_64_S (ctx.h[7]);
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}
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KERNEL_FQ void m12150_loop(KERN_ATTR_TMPS (shiro1_sha512_tmp_t)) {
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KERNEL_FQ KERNEL_FA void m12150_loop(KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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{
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const u32 gid = get_global_id(0);
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if (gid >= GID_CNT) return;
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sha512_ctx_t sha512_ctx;
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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u32 w4[4];
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u32 w5[4];
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u32 w6[4];
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u32 w7[4];
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// Temporary buffer to hold the digest in u32 format
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u32 digest_u32[16];
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w0[0] = tmps[gid].dgst[ 0];
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w0[1] = tmps[gid].dgst[ 1];
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w0[2] = tmps[gid].dgst[ 2];
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w0[3] = tmps[gid].dgst[ 3];
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w1[0] = tmps[gid].dgst[ 4];
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w1[1] = tmps[gid].dgst[ 5];
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w1[2] = tmps[gid].dgst[ 6];
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w1[3] = tmps[gid].dgst[ 7];
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w2[0] = tmps[gid].dgst[ 8];
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w2[1] = tmps[gid].dgst[ 9];
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w2[2] = tmps[gid].dgst[10];
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w2[3] = tmps[gid].dgst[11];
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w3[0] = tmps[gid].dgst[12];
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w3[1] = tmps[gid].dgst[13];
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w3[2] = tmps[gid].dgst[14];
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w3[3] = tmps[gid].dgst[15];
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w4[0] = 0x80000000;
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w4[1] = 0;
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w4[2] = 0;
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w4[3] = 0;
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w5[0] = 0;
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w5[1] = 0;
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w5[2] = 0;
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w5[3] = 0;
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w6[0] = 0;
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w6[1] = 0;
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w6[2] = 0;
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w6[3] = 0;
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w7[0] = 0;
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w7[1] = 0;
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w7[2] = 0;
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w7[3] = 64 * 8;
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// Convert u64 digest to u32 format manually
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digest_u32[0] = h32_from_64_S(tmps[gid].dgst[0]);
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digest_u32[1] = l32_from_64_S(tmps[gid].dgst[0]);
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digest_u32[2] = h32_from_64_S(tmps[gid].dgst[1]);
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digest_u32[3] = l32_from_64_S(tmps[gid].dgst[1]);
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digest_u32[4] = h32_from_64_S(tmps[gid].dgst[2]);
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digest_u32[5] = l32_from_64_S(tmps[gid].dgst[2]);
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digest_u32[6] = h32_from_64_S(tmps[gid].dgst[3]);
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digest_u32[7] = l32_from_64_S(tmps[gid].dgst[3]);
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digest_u32[8] = h32_from_64_S(tmps[gid].dgst[4]);
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digest_u32[9] = l32_from_64_S(tmps[gid].dgst[4]);
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digest_u32[10] = h32_from_64_S(tmps[gid].dgst[5]);
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digest_u32[11] = l32_from_64_S(tmps[gid].dgst[5]);
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digest_u32[12] = h32_from_64_S(tmps[gid].dgst[6]);
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digest_u32[13] = l32_from_64_S(tmps[gid].dgst[6]);
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digest_u32[14] = h32_from_64_S(tmps[gid].dgst[7]);
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digest_u32[15] = l32_from_64_S(tmps[gid].dgst[7]);
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for (u32 i = 0; i < LOOP_CNT; i++)
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{
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u64 dgst[8];
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for (u32 i = 0; i < LOOP_CNT; i++) {
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sha512_init (&sha512_ctx);
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sha512_update (&sha512_ctx, digest_u32, SHA512_DIGEST_LENGTH);
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sha512_final (&sha512_ctx);
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dgst[0] = SHA512M_A;
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dgst[1] = SHA512M_B;
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dgst[2] = SHA512M_C;
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dgst[3] = SHA512M_D;
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dgst[4] = SHA512M_E;
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dgst[5] = SHA512M_F;
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dgst[6] = SHA512M_G;
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dgst[7] = SHA512M_H;
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for (int j = 0; j < 8; j++) {
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tmps[gid].dgst[j] = sha512_ctx.h[j];
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}
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sha512_transform (w0, w1, w2, w3, w4, w5, w6, w7, dgst);
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// Update the digest_u32 array for the next iteration
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digest_u32[0] = h32_from_64_S(tmps[gid].dgst[0]);
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digest_u32[1] = l32_from_64_S(tmps[gid].dgst[0]);
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digest_u32[2] = h32_from_64_S(tmps[gid].dgst[1]);
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digest_u32[3] = l32_from_64_S(tmps[gid].dgst[1]);
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digest_u32[4] = h32_from_64_S(tmps[gid].dgst[2]);
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digest_u32[5] = l32_from_64_S(tmps[gid].dgst[2]);
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digest_u32[6] = h32_from_64_S(tmps[gid].dgst[3]);
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digest_u32[7] = l32_from_64_S(tmps[gid].dgst[3]);
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digest_u32[8] = h32_from_64_S(tmps[gid].dgst[4]);
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digest_u32[9] = l32_from_64_S(tmps[gid].dgst[4]);
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digest_u32[10] = h32_from_64_S(tmps[gid].dgst[5]);
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digest_u32[11] = l32_from_64_S(tmps[gid].dgst[5]);
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digest_u32[12] = h32_from_64_S(tmps[gid].dgst[6]);
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digest_u32[13] = l32_from_64_S(tmps[gid].dgst[6]);
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digest_u32[14] = h32_from_64_S(tmps[gid].dgst[7]);
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digest_u32[15] = l32_from_64_S(tmps[gid].dgst[7]);
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w0[0] = h32_from_64_S (dgst[0]);
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w0[1] = l32_from_64_S (dgst[0]);
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w0[2] = h32_from_64_S (dgst[1]);
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w0[3] = l32_from_64_S (dgst[1]);
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w1[0] = h32_from_64_S (dgst[2]);
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w1[1] = l32_from_64_S (dgst[2]);
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w1[2] = h32_from_64_S (dgst[3]);
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w1[3] = l32_from_64_S (dgst[3]);
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w2[0] = h32_from_64_S (dgst[4]);
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w2[1] = l32_from_64_S (dgst[4]);
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w2[2] = h32_from_64_S (dgst[5]);
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w2[3] = l32_from_64_S (dgst[5]);
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w3[0] = h32_from_64_S (dgst[6]);
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w3[1] = l32_from_64_S (dgst[6]);
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w3[2] = h32_from_64_S (dgst[7]);
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w3[3] = l32_from_64_S (dgst[7]);
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}
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// Store the final digest in the tmps buffer
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for (int i = 0; i < 8; i++) {
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tmps[gid].out[i] = sha512_ctx.h[i];
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}
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tmps[gid].dgst[ 0] = w0[0];
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tmps[gid].dgst[ 1] = w0[1];
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tmps[gid].dgst[ 2] = w0[2];
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tmps[gid].dgst[ 3] = w0[3];
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tmps[gid].dgst[ 4] = w1[0];
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tmps[gid].dgst[ 5] = w1[1];
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tmps[gid].dgst[ 6] = w1[2];
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tmps[gid].dgst[ 7] = w1[3];
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tmps[gid].dgst[ 8] = w2[0];
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tmps[gid].dgst[ 9] = w2[1];
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tmps[gid].dgst[10] = w2[2];
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tmps[gid].dgst[11] = w2[3];
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tmps[gid].dgst[12] = w3[0];
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tmps[gid].dgst[13] = w3[1];
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tmps[gid].dgst[14] = w3[2];
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tmps[gid].dgst[15] = w3[3];
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}
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KERNEL_FQ void m12150_comp (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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KERNEL_FQ KERNEL_FA void m12150_comp (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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{
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const u64 gid = get_global_id (0);
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@ -117,13 +165,10 @@ KERNEL_FQ void m12150_comp (KERN_ATTR_TMPS (shiro1_sha512_tmp_t))
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const u64 lid = get_local_id (0);
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const u64 a = tmps[gid].out[0];
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const u64 b = tmps[gid].out[1];
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const u32 r0 = l32_from_64_S (a);
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const u32 r1 = h32_from_64_S (a);
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const u32 r2 = l32_from_64_S (b);
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const u32 r3 = h32_from_64_S (b);
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const u32 r0 = tmps[gid].dgst[1];
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const u32 r1 = tmps[gid].dgst[0];
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const u32 r2 = tmps[gid].dgst[3];
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const u32 r3 = tmps[gid].dgst[2];
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#define il_pos 0
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