1fa624cc2SJanosch Frank /* SPDX-License-Identifier: GPL-2.0-only */ 243868475SJanosch Frank /* 343868475SJanosch Frank * Tests vector instruction support 443868475SJanosch Frank * 543868475SJanosch Frank * Copyright 2018 IBM Corp. 643868475SJanosch Frank * 743868475SJanosch Frank * Authors: 843868475SJanosch Frank * Janosch Frank <frankja@de.ibm.com> 943868475SJanosch Frank */ 1043868475SJanosch Frank #include <libcflat.h> 1143868475SJanosch Frank #include <asm/page.h> 1243868475SJanosch Frank #include <asm/facility.h> 1343868475SJanosch Frank #include <asm/interrupt.h> 1443868475SJanosch Frank #include <asm-generic/barrier.h> 1543868475SJanosch Frank 1643868475SJanosch Frank static uint8_t pagebuf[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); 1743868475SJanosch Frank 1843868475SJanosch Frank /* Fills all vector registers with data from addr */ 1943868475SJanosch Frank static inline void vlm_all(unsigned long *addr) 2043868475SJanosch Frank { 2143868475SJanosch Frank asm volatile(" .machine z13\n" 2243868475SJanosch Frank " vlm 0, 15, %[a]\n" 2343868475SJanosch Frank : : [a] "Q" (*addr) 2443868475SJanosch Frank : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", 2543868475SJanosch Frank "v9", "v10", "v11", "v12", "v13", "v14", "v15"); 2643868475SJanosch Frank asm volatile(" .machine z13\n" 2743868475SJanosch Frank " vlm 16, 31, %[a]\n" 2843868475SJanosch Frank : : [a] "Q" (*(addr+256/8)) 2943868475SJanosch Frank : "v16", "v17", "v18", "v19", "v20", "v21", "v22", 3043868475SJanosch Frank "v23", "v24", "v25", "v26", "v27", "v28", "v29", 3143868475SJanosch Frank "v30", "v31"); 3243868475SJanosch Frank } 3343868475SJanosch Frank 3443868475SJanosch Frank static void test_add(void) 3543868475SJanosch Frank { 3643868475SJanosch Frank static struct prm { 3743868475SJanosch Frank __uint128_t a,b,c; 3843868475SJanosch Frank } prm __attribute__((aligned(16))); 3943868475SJanosch Frank 4043868475SJanosch Frank prm.a = prm.b = prm.c = 21; 4143868475SJanosch Frank 4243868475SJanosch Frank asm volatile(" .machine z13\n" 4343868475SJanosch Frank " vl 0, %[v1]\n" 4443868475SJanosch Frank " vl 1, %[v2]\n" 4543868475SJanosch Frank " va 2, 0, 1, 4\n" 4643868475SJanosch Frank " vst 2, %[v3]\n" 4743868475SJanosch Frank : [v3] "=Q" (prm.c) 4843868475SJanosch Frank : [v1] "Q" (prm.a), [v2] "Q" (prm.b) 4943868475SJanosch Frank : "v0", "v1", "v2", "memory"); 50a299895bSThomas Huth report(prm.c == 42, "adding 21"); 5143868475SJanosch Frank } 5243868475SJanosch Frank 5343868475SJanosch Frank /* z14 vector extension test */ 5443868475SJanosch Frank static void test_ext1_nand(void) 5543868475SJanosch Frank { 567231778dSJanosch Frank bool has_vext = test_facility(135); 5743868475SJanosch Frank static struct prm { 5843868475SJanosch Frank __uint128_t a,b,c; 5943868475SJanosch Frank } prm __attribute__((aligned(16))); 6043868475SJanosch Frank 6190016cc5SThomas Huth if (!has_vext) { 6290016cc5SThomas Huth report_skip("Vector extensions 1 is not available"); 6343868475SJanosch Frank return; 6490016cc5SThomas Huth } 6543868475SJanosch Frank 6643868475SJanosch Frank memset(&prm, 0xff, sizeof(prm)); 6743868475SJanosch Frank 6843868475SJanosch Frank asm volatile(" .machine z13\n" 6943868475SJanosch Frank " vl 0, %[v1]\n" 7043868475SJanosch Frank " vl 1, %[v2]\n" 7143868475SJanosch Frank " .byte 0xe7, 0x20, 0x10, 0x00, 0x00, 0x6e\n" /* vnn */ 7243868475SJanosch Frank " vst 2, %[v3]\n" 7343868475SJanosch Frank : [v3] "=Q" (prm.c) 7443868475SJanosch Frank : [v1] "Q" (prm.a), [v2] "Q" (prm.b) 7543868475SJanosch Frank : "v0", "v1", "v2", "memory"); 76a299895bSThomas Huth report(!prm.c, "nand ff"); 7743868475SJanosch Frank } 7843868475SJanosch Frank 7943868475SJanosch Frank /* z14 bcd extension test */ 8043868475SJanosch Frank static void test_bcd_add(void) 8143868475SJanosch Frank { 827231778dSJanosch Frank bool has_bcd = test_facility(134); 8343868475SJanosch Frank static struct prm { 8443868475SJanosch Frank __uint128_t a,b,c; 8543868475SJanosch Frank } prm __attribute__((aligned(16))); 8643868475SJanosch Frank 8790016cc5SThomas Huth if (!has_bcd) { 8890016cc5SThomas Huth report_skip("Vector BCD extensions is not available"); 8943868475SJanosch Frank return; 9090016cc5SThomas Huth } 9143868475SJanosch Frank 9243868475SJanosch Frank prm.c = 0; 9343868475SJanosch Frank prm.a = prm.b = 0b001000011100; 9443868475SJanosch Frank 9543868475SJanosch Frank asm volatile(" .machine z13\n" 9643868475SJanosch Frank " vl 0, %[v1]\n" 9743868475SJanosch Frank " vl 1, %[v2]\n" 9843868475SJanosch Frank " .byte 0xe6, 0x20, 0x10, 0x01, 0x00, 0x71\n" /* vap */ 9943868475SJanosch Frank " vst 2, %[v3]\n" 10043868475SJanosch Frank : [v3] "=Q" (prm.c) 10143868475SJanosch Frank : [v1] "Q" (prm.a), [v2] "Q" (prm.b) 10243868475SJanosch Frank : "v0", "v1", "v2", "memory"); 103a299895bSThomas Huth report(prm.c == 0x42c, "bcd add 21"); 10443868475SJanosch Frank } 10543868475SJanosch Frank 10643868475SJanosch Frank static void init(void) 10743868475SJanosch Frank { 10843868475SJanosch Frank /* Enable vector instructions */ 109*1b2c0437SClaudio Imbrenda ctl_set_bit(0, CTL0_VECTOR); 11043868475SJanosch Frank 11143868475SJanosch Frank /* Preset vector registers to 0xff */ 11243868475SJanosch Frank memset(pagebuf, 0xff, PAGE_SIZE); 11343868475SJanosch Frank vlm_all((u64*)pagebuf); 11443868475SJanosch Frank } 11543868475SJanosch Frank 11643868475SJanosch Frank int main(void) 11743868475SJanosch Frank { 11843868475SJanosch Frank bool has_vregs = test_facility(129); 11943868475SJanosch Frank 12043868475SJanosch Frank report_prefix_push("vector"); 12190016cc5SThomas Huth if (!has_vregs) { 12290016cc5SThomas Huth report_skip("Basic vector facility is not available"); 12343868475SJanosch Frank goto done; 12490016cc5SThomas Huth } 12543868475SJanosch Frank 12643868475SJanosch Frank init(); 12743868475SJanosch Frank test_add(); 12843868475SJanosch Frank test_ext1_nand(); 12943868475SJanosch Frank test_bcd_add(); 13043868475SJanosch Frank 13143868475SJanosch Frank done: 13243868475SJanosch Frank report_prefix_pop(); 13343868475SJanosch Frank return report_summary(); 13443868475SJanosch Frank } 135