From d63627fb846b6621be87348b1653a5f37070e12f Mon Sep 17 00:00:00 2001 From: Raul E Rangel Date: Mon, 20 Aug 2018 12:47:19 -0600 Subject: libpayload/libc/time: Add an arch_ndelay() Replace _delay with an arch_ndelay(). This way each arch can setup their own delay mechanism. BUG=b:109749762 TEST=Verified delay's still work on grunt. Change-Id: I552eb30984f9c21e92dffc9d7b36873e9e2e4ac5 Signed-off-by: Raul E Rangel Reviewed-on: https://review.coreboot.org/28243 Reviewed-by: Martin Roth Reviewed-by: Richard Spiegel Tested-by: build bot (Jenkins) --- payloads/libpayload/include/libpayload.h | 45 +++++++++++++++++++++++++++++--- payloads/libpayload/include/stddef.h | 3 +++ 2 files changed, 44 insertions(+), 4 deletions(-) (limited to 'payloads/libpayload/include') diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index 359bd0e4ce..c2510b7373 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -464,11 +464,48 @@ unsigned int get_cpu_speed(void); uint64_t timer_hz(void); uint64_t timer_raw_value(void); uint64_t timer_us(uint64_t base); +void arch_ndelay(uint64_t n); /* Generic. */ -void ndelay(unsigned int n); -void udelay(unsigned int n); -void mdelay(unsigned int n); -void delay(unsigned int n); + +/** + * Delay for a specified number of nanoseconds. + * + * @param ns Number of nanoseconds to delay for. + */ +static inline void ndelay(unsigned int ns) +{ + arch_ndelay((uint64_t)ns); +} + +/** + * Delay for a specified number of microseconds. + * + * @param us Number of microseconds to delay for. + */ +static inline void udelay(unsigned int us) +{ + arch_ndelay((uint64_t)us * NSECS_PER_USEC); +} + +/** + * Delay for a specified number of milliseconds. + * + * @param ms Number of milliseconds to delay for. + */ +static inline void mdelay(unsigned int ms) +{ + arch_ndelay((uint64_t)ms * NSECS_PER_MSEC); +} + +/** + * Delay for a specified number of seconds. + * + * @param s Number of seconds to delay for. + */ +static inline void delay(unsigned int s) +{ + arch_ndelay((uint64_t)s * NSECS_PER_SEC); +} /** * @defgroup readline Readline functions diff --git a/payloads/libpayload/include/stddef.h b/payloads/libpayload/include/stddef.h index 4e41eedfe8..725ff0bcb5 100644 --- a/payloads/libpayload/include/stddef.h +++ b/payloads/libpayload/include/stddef.h @@ -29,6 +29,9 @@ typedef __SIZE_TYPE__ ssize_t; #define MHz (1000*KHz) #define GHz (1000*MHz) +#define NSECS_PER_SEC 1000000000 #define USECS_PER_SEC 1000000 #define MSECS_PER_SEC 1000 +#define NSECS_PER_MSEC (NSECS_PER_SEC / MSECS_PER_SEC) +#define NSECS_PER_USEC (NSECS_PER_SEC / USECS_PER_SEC) #define USECS_PER_MSEC (USECS_PER_SEC / MSECS_PER_SEC) -- cgit v1.2.3