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authorLinus Torvalds <[email protected]>2022-03-25 10:01:34 -0700
committerLinus Torvalds <[email protected]>2022-03-25 10:01:34 -0700
commitd710d370c4911e83da5d2bc43d4a2c3b56bd27e7 (patch)
tree9e7a702654feb88e2555c1bf41f71ef4a58b25aa /arch/s390/include/asm/timex.h
parent744465da705f7d8cd893e97738a47b91f3321ce2 (diff)
parentc65f677b62d6180cc174e06f953f7fe860adf6d1 (diff)
Merge tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik: - Raise minimum supported machine generation to z10, which comes with various cleanups and code simplifications (usercopy/spectre mitigation/etc). - Rework extables and get rid of anonymous out-of-line fixups. - Page table helpers cleanup. Add set_pXd()/set_pte() helper functions. Covert pte_val()/pXd_val() macros to functions. - Optimize kretprobe handling by avoiding extra kprobe on __kretprobe_trampoline. - Add support for CEX8 crypto cards. - Allow to trigger AP bus rescan via writing to /sys/bus/ap/scans. - Add CONFIG_EXPOLINE_EXTERN option to build the kernel without COMDAT group sections which simplifies kpatch support. - Always use the packed stack layout and extend kernel unwinder tests. - Add sanity checks for ftrace code patching. - Add s390dbf debug log for the vfio_ap device driver. - Various virtual vs physical address confusion fixes. - Various small fixes and improvements all over the code. * tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (69 commits) s390/test_unwind: add kretprobe tests s390/kprobes: Avoid additional kprobe in kretprobe handling s390: convert ".insn" encoding to instruction names s390: assume stckf is always present s390/nospec: move to single register thunks s390: raise minimum supported machine generation to z10 s390/uaccess: Add copy_from/to_user_key functions s390/nospec: align and size extern thunks s390/nospec: add an option to use thunk-extern s390/nospec: generate single register thunks if possible s390/pci: make zpci_set_irq()/zpci_clear_irq() static s390: remove unused expoline to BC instructions s390/irq: use assignment instead of cast s390/traps: get rid of magic cast for per code s390/traps: get rid of magic cast for program interruption code s390/signal: fix typo in comments s390/asm-offsets: remove unused defines s390/test_unwind: avoid build warning with W=1 s390: remove .fixup section s390/bpf: encode register within extable entry ...
Diffstat (limited to 'arch/s390/include/asm/timex.h')
-rw-r--r--arch/s390/include/asm/timex.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 50d9b04ecbd1..2cfce42aa7fc 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -148,7 +148,7 @@ struct ptff_qui {
asm volatile( \
" lgr 0,%[reg0]\n" \
" lgr 1,%[reg1]\n" \
- " .insn e,0x0104\n" \
+ " ptff\n" \
" ipm %[rc]\n" \
" srl %[rc],28\n" \
: [rc] "=&d" (rc), "+m" (*(struct addrtype *)reg1) \
@@ -187,14 +187,10 @@ static inline unsigned long get_tod_clock(void)
static inline unsigned long get_tod_clock_fast(void)
{
-#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
unsigned long clk;
asm volatile("stckf %0" : "=Q" (clk) : : "cc");
return clk;
-#else
- return get_tod_clock();
-#endif
}
static inline cycles_t get_cycles(void)