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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 09:45:50 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 09:45:50 -0700 |
commit | ad0bf4eb91c2f9b93479b679e5472094ddb76da8 (patch) | |
tree | 4025ab22e3ea949259a5078d06cf7a75afbb8ed3 /arch/s390/include/asm/processor.h | |
parent | Merge tag 'arc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc (diff) | |
parent | s390/mm: cleanup init_new_context() callback (diff) | |
download | linux-dev-ad0bf4eb91c2f9b93479b679e5472094ddb76da8.tar.xz linux-dev-ad0bf4eb91c2f9b93479b679e5472094ddb76da8.zip |
Merge tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Update maintainers. Niklas Schnelle takes over zpci and Vineeth
Vijayan common io code.
- Extend cpuinfo to include topology information.
- Add new extended counters for IBM z15 and sampling buffer allocation
rework in perf code.
- Add control over zeroing out memory during system restart.
- CCA protected key block version 2 support and other
fixes/improvements in crypto code.
- Convert to new fallthrough; annotations.
- Replace zero-length arrays with flexible-arrays.
- QDIO debugfs and other small improvements.
- Drop 2-level paging support optimization for compat tasks. Varios mm
cleanups.
- Remove broken and unused hibernate / power management support.
- Remove fake numa support which does not bring any benefits.
- Exclude offline CPUs from CPU topology masks to be more consistent
with other architectures.
- Prevent last branching instruction address leaking to userspace.
- Other small various fixes and improvements all over the code.
* tag 's390-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (57 commits)
s390/mm: cleanup init_new_context() callback
s390/mm: cleanup virtual memory constants usage
s390/mm: remove page table downgrade support
s390/qdio: set qdio_irq->cdev at allocation time
s390/qdio: remove unused function declarations
s390/ccwgroup: remove pm support
s390/ap: remove power management code from ap bus and drivers
s390/zcrypt: use kvmalloc instead of kmalloc for 256k alloc
s390/mm: cleanup arch_get_unmapped_area() and friends
s390/ism: remove pm support
s390/cio: use fallthrough;
s390/vfio: use fallthrough;
s390/zcrypt: use fallthrough;
s390: use fallthrough;
s390/cpum_sf: Fix wrong page count in error message
s390/diag: fix display of diagnose call statistics
s390/ap: Remove ap device suspend and resume callbacks
s390/pci: Improve handling of unset UID
s390/pci: Fix zpci_alloc_domain() over allocation
s390/qdio: pass ISC as parameter to chsc_sadc()
...
Diffstat (limited to 'arch/s390/include/asm/processor.h')
-rw-r--r-- | arch/s390/include/asm/processor.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index aadb3d0e2adc..555d148ccf32 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -92,15 +92,15 @@ extern void __bpon(void); */ #define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_31BIT) ? \ - (1UL << 31) : -PAGE_SIZE) + _REGION3_SIZE : TASK_SIZE_MAX) #define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \ - (1UL << 30) : (1UL << 41)) + (_REGION3_SIZE >> 1) : (_REGION2_SIZE >> 1)) #define TASK_SIZE TASK_SIZE_OF(current) #define TASK_SIZE_MAX (-PAGE_SIZE) #define STACK_TOP (test_thread_flag(TIF_31BIT) ? \ - (1UL << 31) : (1UL << 42)) -#define STACK_TOP_MAX (1UL << 42) + _REGION3_SIZE : _REGION2_SIZE) +#define STACK_TOP_MAX _REGION2_SIZE #define HAVE_ARCH_PICK_MMAP_LAYOUT @@ -161,6 +161,7 @@ typedef struct thread_struct thread_struct; #define INIT_THREAD { \ .ksp = sizeof(init_stack) + (unsigned long) &init_stack, \ .fpu.regs = (void *) init_task.thread.fpu.fprs, \ + .last_break = 1, \ } /* @@ -177,7 +178,6 @@ typedef struct thread_struct thread_struct; regs->psw.mask = PSW_USER_BITS | PSW_MASK_BA; \ regs->psw.addr = new_psw; \ regs->gprs[15] = new_stackp; \ - crst_table_downgrade(current->mm); \ execve_tail(); \ } while (0) |