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authorGabe Black <gabeblack@google.com>2013-02-22 16:38:53 -0800
committerRonald G. Minnich <rminnich@gmail.com>2013-03-14 04:53:33 +0100
commit5c0b7abe786d7b4370ed1dd7ef323a3091d9620c (patch)
treecbd054ae9d0b25a024bead99d1c61bf287563b0e /payloads/libpayload/include/libpayload.h
parent6a0b3611c5b057907aabe2a1c05302440da9bc19 (diff)
downloadcoreboot-5c0b7abe786d7b4370ed1dd7ef323a3091d9620c.tar.xz
libpayload: Generalize and redistribute timekeeping code
The timekeeping code in libpayload was dependent on rdtsc, and when it was split up by arch, that code was duplicated even though it was mostly the same. This change factors out actually reading the count from the timer and the speed of the timer and puts the definitions of ndelay, udelay, mdelay and delay into generic code. Then, in x86, the timer_hz and timer_get_raw_value functions which used to be in depthcharge were moved over to libpayload's arch/x86/timer.c. In ARM where there isn't a single, canonical timer, those functions are omitted with the intention that they'll be implemented by a specific timer driver chosen elsewhere. Change-Id: I9c919bed712ace941f417c1d58679d667b2d8269 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/2717 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads/libpayload/include/libpayload.h')
-rw-r--r--payloads/libpayload/include/libpayload.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h
index eaa0d0deeb..f23fb8763b 100644
--- a/payloads/libpayload/include/libpayload.h
+++ b/payloads/libpayload/include/libpayload.h
@@ -407,8 +407,12 @@ int get_multiboot_info(struct sysinfo_t *info);
int lib_get_sysinfo(void);
-/* Timer functions - defined by each architecture. */
+/* Timer functions. */
+/* Defined by each architecture. */
unsigned int get_cpu_speed(void);
+uint64_t timer_hz(void);
+uint64_t timer_raw_value(void);
+/* Generic. */
void ndelay(unsigned int n);
void udelay(unsigned int n);
void mdelay(unsigned int n);