diff options
| author | Petri Savolainen <petri.savolainen@nokia.com> | 2020-07-06 16:02:43 +0300 |
|---|---|---|
| committer | Petri Savolainen <petri.savolainen@nokia.com> | 2020-07-10 11:28:59 +0300 |
| commit | 0fdfb1bec47adb77d29aaf2a21e45d199fd9b459 (patch) | |
| tree | 834c3b867f4b30e4ffa9efc159c415ac751bc63c /platform/linux-generic/arch/aarch64 | |
| parent | b41e5ca8f52ae63d636d7a4068ed154736a40d3c (diff) | |
linux-gen: sysinfo: update ARM ISA version number detection
Current Arm C Language Extensions (ACLE) documentation defines
that from v8.1 onwards __ARM_ARCH value includes the minor version
number. This applies to more recent compilers. Older compilers
set __ARM_ARCH value to 8 also when building for v8.1.
Signed-off-by: Petri Savolainen <petri.savolainen@nokia.com>
Reviewed-and-tested-by: Jerin Jacob <jerinj@marvell.com>
Diffstat (limited to 'platform/linux-generic/arch/aarch64')
| -rw-r--r-- | platform/linux-generic/arch/aarch64/odp_sysinfo_parse.c | 52 |
1 files changed, 33 insertions, 19 deletions
diff --git a/platform/linux-generic/arch/aarch64/odp_sysinfo_parse.c b/platform/linux-generic/arch/aarch64/odp_sysinfo_parse.c index ae8a34381..56f33cdce 100644 --- a/platform/linux-generic/arch/aarch64/odp_sysinfo_parse.c +++ b/platform/linux-generic/arch/aarch64/odp_sysinfo_parse.c @@ -255,25 +255,6 @@ void sys_info_print_arch(void) printf("%s\n", ndef); #endif -#if defined(__ARM_ARCH) && __ARM_ARCH >= 8 - /* Actually, this checks for new NEON instructions in - * v8.1, but is currently the only way to distinguish - * v8.0 and >=v8.1. */ - printf(" ARMv8 ISA version "); -#ifdef __ARM_FEATURE_QRDMX - printf("v8.1 or higher\n"); -#else - printf("v8.0\n"); -#endif -#endif - -#ifdef __ARM_FEATURE_QRDMX - /* Actually, this checks for new NEON instructions in - * v8.1, but is currently the only way to distinguish - * v8.0 and >=v8.1. */ - printf(" ARMv8.1 instructions\n"); -#endif - printf(" __ARM_NEON "); #ifdef __ARM_NEON printf("%i\n", __ARM_NEON); @@ -288,6 +269,13 @@ void sys_info_print_arch(void) printf("%s\n", ndef); #endif + printf(" __ARM_FEATURE_QRDMX "); +#ifdef __ARM_FEATURE_QRDMX + printf("%i\n", __ARM_FEATURE_QRDMX); +#else + printf("%s\n", ndef); +#endif + printf(" __ARM_FEATURE_CRYPTO "); #ifdef __ARM_FEATURE_CRYPTO printf("%i\n", __ARM_FEATURE_CRYPTO); @@ -302,6 +290,32 @@ void sys_info_print_arch(void) printf("%s\n", ndef); #endif + printf(" ARM ISA version: "); +#if defined(__ARM_ARCH) + if (__ARM_ARCH < 8) { + printf("v%i\n", __ARM_ARCH); + } else if (__ARM_ARCH == 8) { + /* Actually, this checks for new NEON instructions in + * v8.1, but is currently the only way to distinguish + * v8.0 and >=v8.1. */ + #ifdef __ARM_FEATURE_QRDMX + printf("v8.1 or higher\n"); + #else + printf("v8.0\n"); + #endif + } else { + /* ACLE 2018 defines that from v8.1 onwards the value includes + * the minor version number: __ARM_ARCH = X * 100 + Y + * E.g. for Armv8.1 __ARM_ARCH = 801 */ + int major = __ARM_ARCH / 100; + int minor = __ARM_ARCH - (major * 100); + + printf("v%i.%i\n", major, minor); + } +#else + printf("%s\n", ndef); +#endif + printf("\n"); } |