diff options
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/compat_ioctl.c | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/head.S | 27 | ||||
| -rw-r--r-- | arch/s390/kernel/head64.S | 25 | ||||
| -rw-r--r-- | arch/s390/kernel/traps.c | 5 |
4 files changed, 45 insertions, 18 deletions
diff --git a/arch/s390/kernel/compat_ioctl.c b/arch/s390/kernel/compat_ioctl.c index 03d03c6d3cb..24a1e9f069a 100644 --- a/arch/s390/kernel/compat_ioctl.c +++ b/arch/s390/kernel/compat_ioctl.c @@ -42,7 +42,6 @@ struct ioctl_trans ioctl_start[] = { #include "../../../fs/compat_ioctl.c" /* s390 only ioctls */ -#if defined(CONFIG_DASD) || defined(CONFIG_DASD_MODULE) COMPATIBLE_IOCTL(DASDAPIVER) COMPATIBLE_IOCTL(BIODASDDISABLE) COMPATIBLE_IOCTL(BIODASDENABLE) @@ -59,16 +58,11 @@ COMPATIBLE_IOCTL(BIODASDPRRD) COMPATIBLE_IOCTL(BIODASDPSRD) COMPATIBLE_IOCTL(BIODASDGATTR) COMPATIBLE_IOCTL(BIODASDSATTR) -#if defined(CONFIG_DASD_CMB) || defined(CONFIG_DASD_CMB_MODULE) COMPATIBLE_IOCTL(BIODASDCMFENABLE) COMPATIBLE_IOCTL(BIODASDCMFDISABLE) COMPATIBLE_IOCTL(BIODASDREADALLCMB) -#endif -#endif -#if defined(CONFIG_S390_TAPE) || defined(CONFIG_S390_TAPE_MODULE) COMPATIBLE_IOCTL(TAPE390_DISPLAY) -#endif /* s390 doesn't need handlers here */ COMPATIBLE_IOCTL(TIOCGSERIAL) diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index b804c55bd91..fc8bf5e285f 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -345,10 +345,25 @@ iplstart: bno .Lnoreset la %r2,.Lreset lhi %r3,26 - .long 0x83230008 + diag %r2,%r3,8 + mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw +.Lwaitrdrirq: + lpsw .Lrdrwaitpsw +.Lrdrint: + c %r1,0xb8 # compare subchannel number + bne .Lwaitrdrirq + la %r5,.Lirb + tsch 0(%r5) .Lnoreset: + b .Lnoload + + .align 8 +.Lrdrnewpsw: + .long 0x00080000,0x80000000+.Lrdrint +.Lrdrwaitpsw: + .long 0x020a0000,0x80000000+.Lrdrint #endif - + # # everything loaded, go for it # @@ -517,10 +532,10 @@ startup:basr %r13,0 # get base l %r2, .Lrcp2-.LPG1(%r13) # try with Read SCP b .Lservicecall-.LPG1(%r13) .Lprocsccb: - lh %r1,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 - chi %r1,0x00 - jne .Lscnd - l %r1,.Lscpincr2-PARMAREA(%r4) # otherwise use this one + lhi %r1,0 + icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 + jnz .Lscnd + l %r1,.Lscpincr2-PARMAREA+4(%r4) # otherwise use this one .Lscnd: xr %r3,%r3 # same logic ic %r3,.Lscpa1-PARMAREA(%r4) diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 8366793bc37..f525c0c2125 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -344,10 +344,25 @@ iplstart: bno .Lnoreset la %r2,.Lreset lhi %r3,26 - .long 0x83230008 + diag %r2,%r3,8 + mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw +.Lwaitrdrirq: + lpsw .Lrdrwaitpsw +.Lrdrint: + c %r1,0xb8 # compare subchannel number + bne .Lwaitrdrirq + la %r5,.Lirb + tsch 0(%r5) .Lnoreset: + b .Lnoload + + .align 8 +.Lrdrnewpsw: + .long 0x00080000,0x80000000+.Lrdrint +.Lrdrwaitpsw: + .long 0x020a0000,0x80000000+.Lrdrint #endif - + # # everything loaded, go for it # @@ -518,9 +533,9 @@ startup:basr %r13,0 # get base l %r2,.Lrcp2-.LPG1(%r13) # try with Read SCP b .Lservicecall-.LPG1(%r13) .Lprocsccb: - lh %r1,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 - chi %r1,0x00 - jne .Lscnd + lghi %r1,0 + icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 + jnz .Lscnd lg %r1,.Lscpincr2-PARMAREA(%r4) # otherwise use this one .Lscnd: xr %r3,%r3 # same logic diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 8b90e9528b9..ca34b6f34b3 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -668,7 +668,10 @@ asmlinkage void space_switch_exception(struct pt_regs * regs, long int_code) asmlinkage void kernel_stack_overflow(struct pt_regs * regs) { - die("Kernel stack overflow", regs, 0); + bust_spinlocks(1); + printk("Kernel stack overflow.\n"); + show_regs(regs); + bust_spinlocks(0); panic("Corrupt kernel stack, can't continue."); } |