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charset="utf-8" When the rva23u64 base behavior is advertised ensure all its mandated extensions are also advertised. The prctl calls are necessary to ensure PMLEN=3D0 and PMLEN=3D7 are supported, as that's also mandated by the profiles spec for rva23u64. Signed-off-by: Andrew Jones --- .../testing/selftests/riscv/hwprobe/hwprobe.c | 112 +++++++++++++++++- 1 file changed, 111 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/riscv/hwprobe/hwprobe.c b/tools/testin= g/selftests/riscv/hwprobe/hwprobe.c index 54c435af9923..780658867313 100644 --- a/tools/testing/selftests/riscv/hwprobe/hwprobe.c +++ b/tools/testing/selftests/riscv/hwprobe/hwprobe.c @@ -1,7 +1,115 @@ // SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include + #include "hwprobe.h" #include "kselftest.h" =20 +#define RVA23U64_HWCAP ( \ + (1 << ('I' - 'A')) | \ + (1 << ('M' - 'A')) | \ + (1 << ('A' - 'A')) | \ + (1 << ('F' - 'A')) | \ + (1 << ('D' - 'A')) | \ + (1 << ('C' - 'A')) | \ + (1 << ('B' - 'A')) | \ + (1 << ('V' - 'A')) \ +) + +#define RVA23U64_EXT0 ( \ + RISCV_HWPROBE_IMA_FD | \ + RISCV_HWPROBE_IMA_C | \ + RISCV_HWPROBE_IMA_V | \ + RISCV_HWPROBE_EXT_ZBA | \ + RISCV_HWPROBE_EXT_ZBB | \ + RISCV_HWPROBE_EXT_ZBS | \ + RISCV_HWPROBE_EXT_ZICBOZ | \ + RISCV_HWPROBE_EXT_ZKT | \ + RISCV_HWPROBE_EXT_ZVBB | \ + RISCV_HWPROBE_EXT_ZVKT | \ + RISCV_HWPROBE_EXT_ZFHMIN | \ + RISCV_HWPROBE_EXT_ZIHINTNTL | \ + RISCV_HWPROBE_EXT_ZVFHMIN | \ + RISCV_HWPROBE_EXT_ZFA | \ + RISCV_HWPROBE_EXT_ZICNTR | \ + RISCV_HWPROBE_EXT_ZICOND | \ + RISCV_HWPROBE_EXT_ZIHINTPAUSE | \ + RISCV_HWPROBE_EXT_ZIHPM | \ + RISCV_HWPROBE_EXT_ZIMOP | \ + RISCV_HWPROBE_EXT_ZCB | \ + RISCV_HWPROBE_EXT_ZCMOP | \ + RISCV_HWPROBE_EXT_ZAWRS | \ + RISCV_HWPROBE_EXT_SUPM | \ + RISCV_HWPROBE_EXT_ZICBOM | \ + RISCV_HWPROBE_EXT_ZICBOP | \ + RISCV_HWPROBE_EXT_ZICCLSM \ +) + +#define RVA23U64_EXT1 ( \ + RISCV_HWPROBE_EXT_ZICCAMOA | \ + RISCV_HWPROBE_EXT_ZICCIF | \ + RISCV_HWPROBE_EXT_ZICCRSE | \ + RISCV_HWPROBE_EXT_ZA64RS \ +) + +static void check_rva23u64(unsigned long *cpus, size_t cpusetsize) +{ + struct riscv_hwprobe pairs[] =3D { + { .key =3D RISCV_HWPROBE_KEY_BASE_BEHAVIOR, }, + { .key =3D RISCV_HWPROBE_KEY_IMA_EXT_0, }, + { .key =3D RISCV_HWPROBE_KEY_IMA_EXT_1, }, + { .key =3D RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE, }, + { .key =3D RISCV_HWPROBE_KEY_ZICBOM_BLOCK_SIZE, }, + { .key =3D RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE, }, + }; + long ret, pmlen0, pmlen7; + unsigned long hwcap; + + ret =3D riscv_hwprobe(pairs, ARRAY_SIZE(pairs), cpusetsize, cpus, 0); + assert(ret =3D=3D 0); + assert(pairs[0].key =3D=3D RISCV_HWPROBE_KEY_BASE_BEHAVIOR); + assert(pairs[1].key =3D=3D RISCV_HWPROBE_KEY_IMA_EXT_0); + assert(pairs[3].key =3D=3D RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE); + assert(pairs[4].key =3D=3D RISCV_HWPROBE_KEY_ZICBOM_BLOCK_SIZE); + assert(pairs[5].key =3D=3D RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE); + + if (!(pairs[0].value & RISCV_HWPROBE_BASE_BEHAVIOR_RVA23U64)) { + ksft_test_result_skip("rva23u64 check, no RVA23U64 base behavior\n"); + return; + } + + assert(pairs[2].key =3D=3D RISCV_HWPROBE_KEY_IMA_EXT_1); + assert(pairs[0].value & RISCV_HWPROBE_BASE_BEHAVIOR_IMA); + + if (prctl(PR_SET_TAGGED_ADDR_CTRL, 0 << PR_PMLEN_SHIFT, 0, 0, 0)) { + ksft_test_result_skip("rva23u64 check, failed PR_SET_TAGGED_ADDR_CTRL\n"= ); + return; + } + ret =3D prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0); + if (ret < 0) { + ksft_test_result_skip("rva23u64 check, failed PR_GET_TAGGED_ADDR_CTRL\n"= ); + return; + } + pmlen0 =3D (ret & PR_PMLEN_MASK) >> PR_PMLEN_SHIFT; + + ret =3D prctl(PR_SET_TAGGED_ADDR_CTRL, 7 << PR_PMLEN_SHIFT, 0, 0, 0); + assert(ret =3D=3D 0); + ret =3D prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0); + assert(ret >=3D 0); + pmlen7 =3D (ret & PR_PMLEN_MASK) >> PR_PMLEN_SHIFT; + + hwcap =3D getauxval(AT_HWCAP); + + ksft_test_result((pairs[1].value & RVA23U64_EXT0) =3D=3D RVA23U64_EXT0 && + (pairs[2].value & RVA23U64_EXT1) =3D=3D RVA23U64_EXT1 && + pairs[3].value =3D=3D 64 && pairs[4].value =3D=3D 64 && pairs[5].value= =3D=3D 64 && + pmlen0 =3D=3D 0 && pmlen7 =3D=3D 7 && + (hwcap & RVA23U64_HWCAP) =3D=3D RVA23U64_HWCAP, + "rva23u64 is consistent\n"); +} + int main(int argc, char **argv) { struct riscv_hwprobe pairs[8]; @@ -9,7 +117,7 @@ int main(int argc, char **argv) long out; =20 ksft_print_header(); - ksft_set_plan(5); + ksft_set_plan(6); =20 /* Fake the CPU_SET ops. */ cpus =3D -1; @@ -62,5 +170,7 @@ int main(int argc, char **argv) pairs[1].key =3D=3D 1 && pairs[1].value !=3D 0xAAAA, "Unknown key overwritten with -1 and doesn't block other elements\n"); =20 + check_rva23u64(&cpus, 1); + ksft_finished(); } --=20 2.43.0