From e29178eda1ed5fe3b3796af12ce0b8d0a0337992 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Fri, 2 Sep 2022 13:57:47 +0200 Subject: [PATCH] time: Import time_after64() and friends from Linux When using us times it makes sense to use 64bit variables for storage. The currently implemented time_after() and friends functions only handle 32bit variables. This patch now includes the 64bit variants as well from Linux. This will be used by the upcoming generic cyclic function infrastructure. These macros were copied from include/linux/jiffies.h of Linux 5.18. Signed-off-by: Stefan Roese Reviewed-by: Simon Glass --- include/time.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/time.h b/include/time.h index 9deb2cf61c..3b2ba09124 100644 --- a/include/time.h +++ b/include/time.h @@ -83,6 +83,25 @@ uint64_t usec_to_tick(unsigned long usec); (time_after_eq(a,b) && \ time_before(a,c)) +/* Same as above, but does so with platform independent 64bit types. + * These must be used when utilizing jiffies_64 (i.e. return value of + * get_jiffies_64() */ +#define time_after64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)((b) - (a)) < 0)) +#define time_before64(a,b) time_after64(b,a) + +#define time_after_eq64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)((a) - (b)) >= 0)) +#define time_before_eq64(a,b) time_after_eq64(b,a) + +#define time_in_range64(a, b, c) \ + (time_after_eq64(a, b) && \ + time_before_eq64(a, c)) + /** * usec2ticks() - Convert microseconds to internal ticks *