[PATCH 01/27] kernel: Standardize vdso_datapage
STALE2870d
From: vincenzo.frascino@arm.com (Vincenzo Frascino)
Date: 2018-11-09 12:37:04
Also in:
linux-arch
Subsystem:
generic vdso library, the rest · Maintainers:
Andy Lutomirski, Thomas Gleixner, Vincenzo Frascino, Linus Torvalds
Revision v1 of 7 in this series.
Revisions (7)
In an effort to unify the common code for managing the vdso library in between all the architectures that support it, this patch tries to provide a common format for the vdso datapage. As a result of this, this patch moves vdso_datapage.h from arm64 private includes to general includes (include/vdso) and to avoid possible conflicts replaces the header guard. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- include/vdso/datapage.h | 48 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 include/vdso/datapage.h
diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
new file mode 100644
index 000000000000..a02ca170d56e
--- /dev/null
+++ b/include/vdso/datapage.h@@ -0,0 +1,48 @@ +/* + * Copyright (C) 2012 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __VDSO_DATAPAGE_H +#define __VDSO_DATAPAGE_H + +#ifdef __KERNEL__ + +#ifndef __ASSEMBLY__ + +#include <linux/types.h> + +struct vdso_data { + __u64 cs_cycle_last; /* Timebase at clocksource init */ + __u64 raw_time_sec; /* Raw time */ + __u64 raw_time_nsec; + __u64 xtime_clock_sec; /* Kernel time */ + __u64 xtime_clock_nsec; + __u64 xtime_coarse_sec; /* Coarse time */ + __u64 xtime_coarse_nsec; + __u64 wtm_clock_sec; /* Wall to monotonic time */ + __u64 wtm_clock_nsec; + __u32 tb_seq_count; /* Timebase sequence counter */ + __u32 cs_mono_mult; /* NTP-adjusted clocksource multiplier */ + __u32 cs_shift; /* Clocksource shift (mono = raw) */ + __u32 cs_raw_mult; /* Raw clocksource multiplier */ + __u32 tz_minuteswest; /* Whacky timezone stuff */ + __u32 tz_dsttime; + __u32 use_syscall; +}; + +#endif /* !__ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#endif /* __VDSO_DATAPAGE_H */
--
2.19.1