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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2017-02-17 08:12:30 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-02-23 10:06:38 +0100 |
| commit | 606aa4aa0b2c6d7c4f5d2e459922675ea1d7e459 (patch) | |
| tree | f048dd4cc3020c95af5f90cd27761e9b5636d815 /arch/s390 | |
| parent | bc49a7831b1137ce1c2dda1c57e3631655f5d2ae (diff) | |
| download | linux-606aa4aa0b2c6d7c4f5d2e459922675ea1d7e459.tar.gz linux-606aa4aa0b2c6d7c4f5d2e459922675ea1d7e459.tar.xz | |
s390: rename CIF_ASCE to CIF_ASCE_PRIMARY
This is just a preparation patch in order to keep the "restore address
space after syscall" patch small.
Rename CIF_ASCE to CIF_ASCE_PRIMARY to be unique and specific when
introducing a second CIF_ASCE_SECONDARY CIF flag.
Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/mmu_context.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/processor.h | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/entry.S | 22 |
3 files changed, 15 insertions, 15 deletions
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 67f7a991c929..9b828c073176 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -63,7 +63,7 @@ static inline void set_user_asce(struct mm_struct *mm) S390_lowcore.user_asce = mm->context.asce; if (current->thread.mm_segment.ar4) __ctl_load(S390_lowcore.user_asce, 7, 7); - set_cpu_flag(CIF_ASCE); + set_cpu_flag(CIF_ASCE_PRIMARY); } static inline void clear_user_asce(void) @@ -81,7 +81,7 @@ static inline void load_kernel_asce(void) __ctl_store(asce, 1, 1); if (asce != S390_lowcore.kernel_asce) __ctl_load(S390_lowcore.kernel_asce, 1, 1); - set_cpu_flag(CIF_ASCE); + set_cpu_flag(CIF_ASCE_PRIMARY); } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index dacba341e475..3c8fae02ac2d 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -14,14 +14,14 @@ #include <linux/const.h> #define CIF_MCCK_PENDING 0 /* machine check handling is pending */ -#define CIF_ASCE 1 /* user asce needs fixup / uaccess */ +#define CIF_ASCE_PRIMARY 1 /* primary asce needs fixup / uaccess */ #define CIF_NOHZ_DELAY 2 /* delay HZ disable for a tick */ #define CIF_FPU 3 /* restore FPU registers */ #define CIF_IGNORE_IRQ 4 /* ignore interrupt (for udelay) */ #define CIF_ENABLED_WAIT 5 /* in enabled wait state */ #define _CIF_MCCK_PENDING _BITUL(CIF_MCCK_PENDING) -#define _CIF_ASCE _BITUL(CIF_ASCE) +#define _CIF_ASCE_PRIMARY _BITUL(CIF_ASCE_PRIMARY) #define _CIF_NOHZ_DELAY _BITUL(CIF_NOHZ_DELAY) #define _CIF_FPU _BITUL(CIF_FPU) #define _CIF_IGNORE_IRQ _BITUL(CIF_IGNORE_IRQ) diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index db469fa11462..ae7d1a230abf 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -50,7 +50,7 @@ _TIF_WORK = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \ _TIF_UPROBE) _TIF_TRACE = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \ _TIF_SYSCALL_TRACEPOINT) -_CIF_WORK = (_CIF_MCCK_PENDING | _CIF_ASCE | _CIF_FPU) +_CIF_WORK = (_CIF_MCCK_PENDING | _CIF_ASCE_PRIMARY | _CIF_FPU) _PIF_WORK = (_PIF_PER_TRAP) #define BASED(name) name-cleanup_critical(%r13) @@ -339,8 +339,8 @@ ENTRY(system_call) jo .Lsysc_notify_resume TSTMSK __LC_CPU_FLAGS,_CIF_FPU jo .Lsysc_vxrs - TSTMSK __LC_CPU_FLAGS,_CIF_ASCE - jo .Lsysc_uaccess + TSTMSK __LC_CPU_FLAGS,_CIF_ASCE_PRIMARY + jo .Lsysc_asce_primary j .Lsysc_return # beware of critical section cleanup # @@ -358,10 +358,10 @@ ENTRY(system_call) jg s390_handle_mcck # TIF bit will be cleared by handler # -# _CIF_ASCE is set, load user space asce +# _CIF_ASCE_PRIMARY is set, load user space asce # -.Lsysc_uaccess: - ni __LC_CPU_FLAGS+7,255-_CIF_ASCE +.Lsysc_asce_primary: + ni __LC_CPU_FLAGS+7,255-_CIF_ASCE_PRIMARY lctlg %c1,%c1,__LC_USER_ASCE # load primary asce j .Lsysc_return @@ -661,8 +661,8 @@ ENTRY(io_int_handler) jo .Lio_notify_resume TSTMSK __LC_CPU_FLAGS,_CIF_FPU jo .Lio_vxrs - TSTMSK __LC_CPU_FLAGS,_CIF_ASCE - jo .Lio_uaccess + TSTMSK __LC_CPU_FLAGS,_CIF_ASCE_PRIMARY + jo .Lio_asce_primary j .Lio_return # beware of critical section cleanup # @@ -675,10 +675,10 @@ ENTRY(io_int_handler) j .Lio_return # -# _CIF_ASCE is set, load user space asce +# _CIF_ASCE_PRIMARY is set, load user space asce # -.Lio_uaccess: - ni __LC_CPU_FLAGS+7,255-_CIF_ASCE +.Lio_asce_primary: + ni __LC_CPU_FLAGS+7,255-_CIF_ASCE_PRIMARY lctlg %c1,%c1,__LC_USER_ASCE # load primary asce j .Lio_return |