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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-05 09:45:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-05 09:45:46 -0700 |
commit | 9e85ae6af6e907975f68d82ff127073ec024cb05 (patch) | |
tree | 3d3349b03da858e53ef8f8dce467e4a691eabf88 /arch/s390/kernel/debug.c | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha (diff) | |
parent | s390/mm: avoid empty zero pages for KVM guests to avoid postcopy hangs (diff) | |
download | linux-dev-9e85ae6af6e907975f68d82ff127073ec024cb05.tar.xz linux-dev-9e85ae6af6e907975f68d82ff127073ec024cb05.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
"The first part of the s390 updates for 4.14:
- Add machine type 0x3906 for IBM z14
- Add IBM z14 TLB flushing improvements for KVM guests
- Exploit the TOD clock epoch extension to provide a continuous TOD
clock afer 2042/09/17
- Add NIAI spinlock hints for IBM z14
- Rework the vmcp driver and use CMA for the respone buffer of z/VM
CP commands
- Drop some s390 specific asm headers and use the generic version
- Add block discard for DASD-FBA devices under z/VM
- Add average request times to DASD statistics
- A few of those constify patches which seem to be in vogue right now
- Cleanup and bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (50 commits)
s390/mm: avoid empty zero pages for KVM guests to avoid postcopy hangs
s390/dasd: Add discard support for FBA devices
s390/zcrypt: make CPRBX const
s390/uaccess: avoid mvcos jump label
s390/mm: use generic mm_hooks
s390/facilities: fix typo
s390/vmcp: simplify vmcp_response_free()
s390/topology: Remove the unused parent_node() macro
s390/dasd: Change unsigned long long to unsigned long
s390/smp: convert cpuhp_setup_state() return code to zero on success
s390: fix 'novx' early parameter handling
s390/dasd: add average request times to dasd statistics
s390/scm: use common completion path
s390/pci: log changes to uid checking
s390/vmcp: simplify vmcp_ioctl()
s390/vmcp: return -ENOTTY for unknown ioctl commands
s390/vmcp: split vmcp header file and move to uapi
s390/vmcp: make use of contiguous memory allocator
s390/cpcmd,vmcp: avoid GFP_DMA allocations
s390/vmcp: fix uaccess check and avoid undefined behavior
...
Diffstat (limited to 'arch/s390/kernel/debug.c')
-rw-r--r-- | arch/s390/kernel/debug.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index 86b3e74f569e..1d9e83c401fc 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -866,7 +866,8 @@ static inline void debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level, int exception) { - active->id.stck = get_tod_clock_fast() - sched_clock_base_cc; + active->id.stck = get_tod_clock_fast() - + *(unsigned long long *) &tod_clock_base[1]; active->id.fields.cpuid = smp_processor_id(); active->caller = __builtin_return_address(0); active->id.fields.exception = exception; @@ -1455,15 +1456,15 @@ int debug_dflt_header_fn(debug_info_t * id, struct debug_view *view, int area, debug_entry_t * entry, char *out_buf) { - unsigned long sec, usec; + unsigned long base, sec, usec; char *except_str; unsigned long caller; int rc = 0; unsigned int level; level = entry->id.fields.level; - sec = (entry->id.stck >> 12) + (sched_clock_base_cc >> 12); - sec = sec - (TOD_UNIX_EPOCH >> 12); + base = (*(unsigned long *) &tod_clock_base[0]) >> 4; + sec = (entry->id.stck >> 12) + base - (TOD_UNIX_EPOCH >> 12); usec = do_div(sec, USEC_PER_SEC); if (entry->id.fields.exception) |