5a79859ae0
Remove the 31 bit support in order to reduce maintenance cost and
effectively remove dead code. Since a couple of years there is no
distribution left that comes with a 31 bit kernel.
The 31 bit kernel also has been broken since more than a year before
anybody noticed. In addition I added a removal warning to the kernel
shown at ipl for 5 minutes: a960062e58 ("s390: add 31 bit warning
message") which let everybody know about the plan to remove 31 bit
code. We didn't get any response.
Given that the last 31 bit only machine was introduced in 1999 let's
remove the code.
Anybody with 31 bit user space code can still use the compat mode.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
#ifndef __S390_VDSO_H__
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#define __S390_VDSO_H__
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/* Default link addresses for the vDSOs */
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#define VDSO32_LBASE 0
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#define VDSO64_LBASE 0
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#define VDSO_VERSION_STRING LINUX_2.6.29
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#ifndef __ASSEMBLY__
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/*
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* Note about the vdso_data and vdso_per_cpu_data structures:
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*
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* NEVER USE THEM IN USERSPACE CODE DIRECTLY. The layout of the
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* structure is supposed to be known only to the function in the vdso
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* itself and may change without notice.
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*/
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struct vdso_data {
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__u64 tb_update_count; /* Timebase atomicity ctr 0x00 */
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__u64 xtime_tod_stamp; /* TOD clock for xtime 0x08 */
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__u64 xtime_clock_sec; /* Kernel time 0x10 */
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__u64 xtime_clock_nsec; /* 0x18 */
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__u64 xtime_coarse_sec; /* Coarse kernel time 0x20 */
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__u64 xtime_coarse_nsec; /* 0x28 */
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__u64 wtom_clock_sec; /* Wall to monotonic clock 0x30 */
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__u64 wtom_clock_nsec; /* 0x38 */
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__u64 wtom_coarse_sec; /* Coarse wall to monotonic 0x40 */
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__u64 wtom_coarse_nsec; /* 0x48 */
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__u32 tz_minuteswest; /* Minutes west of Greenwich 0x50 */
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__u32 tz_dsttime; /* Type of dst correction 0x54 */
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__u32 ectg_available; /* ECTG instruction present 0x58 */
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__u32 tk_mult; /* Mult. used for xtime_nsec 0x5c */
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__u32 tk_shift; /* Shift used for xtime_nsec 0x60 */
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};
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struct vdso_per_cpu_data {
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__u64 ectg_timer_base;
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__u64 ectg_user_time;
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};
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extern struct vdso_data *vdso_data;
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int vdso_alloc_per_cpu(struct _lowcore *lowcore);
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void vdso_free_per_cpu(struct _lowcore *lowcore);
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#endif /* __ASSEMBLY__ */
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#endif /* __S390_VDSO_H__ */
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