On 5/2/22 7:26 AM, Duncan Bellamy wrote:
musl lacks __ppc_get_timebase() but has __builtin_ppc_get_timebase() the __ppc_get_timebase_freq() is taken from: https://git.alpinelinux.org/aports/commit/?id=06b03f70fb94972286c0c9f6278df89e53903833 Signed-off-by: Duncan Bellamy <d...@denkimushi.com> --- lib/eal/ppc/include/rte_cycles.h | 6 ++++++ lib/eal/ppc/rte_cycles.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/lib/eal/ppc/include/rte_cycles.h b/lib/eal/ppc/include/rte_cycles.h index 5585f9273c..98ffbd2592 100644 --- a/lib/eal/ppc/include/rte_cycles.h +++ b/lib/eal/ppc/include/rte_cycles.h @@ -10,7 +10,9 @@ extern "C" { #endif +#if defined(__GLIBC__) #include <sys/platform/ppc.h> +#endif #include "generic/rte_cycles.h" @@ -26,7 +28,11 @@ extern "C" { static inline uint64_t rte_rdtsc(void) { +#if defined(__GLIBC__) return __ppc_get_timebase(); +#else + return __builtin_ppc_get_timebase(); +#endif } static inline uint64_t diff --git a/lib/eal/ppc/rte_cycles.c b/lib/eal/ppc/rte_cycles.c index 3180adb0ff..154eba722c 100644 --- a/lib/eal/ppc/rte_cycles.c +++ b/lib/eal/ppc/rte_cycles.c @@ -2,12 +2,44 @@ * Copyright (C) IBM Corporation 2019. */ +#if defined(__GLIBC__) #include <sys/platform/ppc.h> +#else +#include <string.h> +#include <stdio.h> +#endif #include "eal_private.h" uint64_t get_tsc_freq_arch(void) { +#if defined(__GLIBC__) return __ppc_get_timebase_freq(); +#else + static uint64_t base; + if (!base) { + FILE *f = fopen("/proc/cpuinfo", "rb");
Code is valid but Linux specific. Access to /proc/cpuinfo needs to live in lib/eal/linux/eal_timer.c, surrounded by '#ifndef RTE_ARCH_PPC_64/#endif', with stubs for FreeBSD/Windows.
Dave
