/* * Copyright 2015, Michael Neuling, IBM Corp. * Licensed under GPLv2. * * Original: Michael Neuling 3/4/2014 * Modified: Rashmica Gupta 8/12/2015 * * Check if any of the Transaction Memory SPRs get corrupted. * - TFIAR - stores address of location of transaction failure * - TFHAR - stores address of software failure handler (if transaction * fails) * - TEXASR - lots of info about the transacion(s) * * (1) create more threads than cpus * (2) in each thread: * (a) set TFIAR and TFHAR a unique value * (b) loop for awhile, continually checking to see if * either register has been corrupted. * * (3) Loop: * (a) begin transaction * (b) abort transaction * (c) check TEXASR to see if FS has been corrupted * */ #define _GNU_SOURCE #include #include #include #include #include #include "utils.h" #include "tm.h" int num_loops = 10000; int passed = 1; void tfiar_tfhar(void *in) { int i, cpu; unsigned long tfhar, tfhar_rd, tfiar, tfiar_rd; cpu_set_t cpuset; CPU_ZERO(&cpuset); cpu = (unsigned long)in >> 1; CPU_SET(cpu, &cpuset); sched_setaffinity(0, sizeof(cpuset), &cpuset); /* TFIAR: Last bit has to be high so userspace can read register */ tfiar = ((unsigned long)in) + 1; tfiar += 2; mtspr(SPRN_TFIAR, tfiar); /* TFHAR: Last two bits are reserved */ tfhar = ((unsigned long)in); tfhar &= ~0x3UL; tfhar += 4; mtspr(SPRN_TFHAR, tfhar); for (i = 0; i < num_loops; i++) { tfhar_rd = mfspr(SPRN_TFHAR); tfiar_rd = mfspr(SPRN_TFIAR); if ( (tfhar != tfhar_rd) || (tfiar != tfiar_rd) ) { passed = 0; return; } } return; } void texasr(void *in) { unsigned long i; uint64_t result = 0; for (i = 0; i < num_loops; i++) { asm __volatile__( "tbegin.;" "beq 3f ;" "tabort. 0 ;" "tend.;" /* Abort handler */ "3: ;" ::: "memory"); /* Check the TEXASR */ result = mfspr(SPRN_TEXASR); if ((result & TEXASR_FS) == 0) { passed = 0; return; } } return; } int test_tmspr() { pthread_t thread; int thread_num; unsigned long i; SKIP_IF(!have_htm()); /* To cause some context switching */ thread_num = 10 * sysconf(_SC_NPROCESSORS_ONLN); /* Test TFIAR and TFHAR */ for (i = 0 ; i < thread_num ; i += 2){ if (pthread_create(&thread, NULL, (void*)tfiar_tfhar, (void *)i)) return EXIT_FAILURE; } if (pthread_join(thread, NULL) != 0) return EXIT_FAILURE; /* Test TEXASR */ for (i = 0 ; i < thread_num ; i++){ if (pthread_create(&thread, NULL, (void*)texasr, (void *)i)) return EXIT_FAILURE; } if (pthread_join(thread, NULL) != 0) return EXIT_FAILURE; if (passed) return 0; else return 1; } int main(int argc, char *argv[]) { if (argc > 1) { if (strcmp(argv[1], "-h") == 0) { printf("Syntax:\t []\n"); return 0; } else { num_loops = atoi(argv[1]); } } return test_harness(test_tmspr, "tm_tmspr"); } ef='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&id=11e3b725cfc282efe9d4a354153e99d86a16af08'>root/sound/pci/ctxfi/ctresource.h
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-01-17 13:46:29 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-23 22:41:33 +0800
commit11e3b725cfc282efe9d4a354153e99d86a16af08 (patch)
tree8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6 /sound/pci/ctxfi/ctresource.h
parentd6040764adcb5cb6de1489422411d701c158bb69 (diff)
crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
Update the ARMv8 Crypto Extensions and the plain NEON AES implementations in CBC and CTR modes to return the next IV back to the skcipher API client. This is necessary for chaining to work correctly. Note that for CTR, this is only done if the request is a round multiple of the block size, since otherwise, chaining is impossible anyway. Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'sound/pci/ctxfi/ctresource.h')