mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 07:26:48 +07:00
9031fefde6
This patch adds VDSO support for 64-bit applications. The VDSO code is currently used for sys_rt_sigreturn() and optimised gettimeofday() (using the user-accessible generic counter). Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
|
|
* 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 __ASM_VDSO_DATAPAGE_H
|
|
#define __ASM_VDSO_DATAPAGE_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct vdso_data {
|
|
__u64 cs_cycle_last; /* Timebase at clocksource init */
|
|
__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_mult; /* Clocksource multiplier */
|
|
__u32 cs_shift; /* Clocksource shift */
|
|
__u32 tz_minuteswest; /* Whacky timezone stuff */
|
|
__u32 tz_dsttime;
|
|
__u32 use_syscall;
|
|
};
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ASM_VDSO_DATAPAGE_H */
|