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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 11:08:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 11:08:24 -0700
commitc1101cbc7db316dcdc94d344727fd372622d0ce7 (patch)
treef1d8946a404bbf7508408a8a76f9c1b7fe672498 /arch/s390/kernel/entry64.S
parent1873e50028ce87dd9014049c86d71a898fa02166 (diff)
parent5ea34a01423a27d4526f3551e8542f2f991bd4a0 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky: "This is the bulk of the s390 patches for the 3.11 merge window. Notable enhancements are: the block timeout patches for dasd from Hannes, and more work on the PCI support front. In addition some cleanup and the usual bug fixing." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set s390/dasd: Add 'timeout' attribute block: check for timeout function in blk_rq_timed_out() block/dasd: detailed I/O errors s390/dasd: Reduce amount of messages for specific errors s390/dasd: Implement block timeout handling s390/dasd: process all requests in the device tasklet s390/dasd: make number of retries configurable s390/dasd: Clarify comment s390/hwsampler: Updated misleading member names in hws_data_entry s390/appldata_net_sum: do not use static data s390/appldata_mem: do not use static data s390/vmwatchdog: do not use static data s390/airq: simplify adapter interrupt code s390/pci: remove per device debug attribute s390/dma: remove gratuitous brackets s390/facility: decompose test_facility() s390/sclp: remove duplicated include from sclp_ctl.c s390/irq: store interrupt information in pt_regs s390/drivers: Cocci spatch "ptr_ret.spatch" ...
Diffstat (limited to 'arch/s390/kernel/entry64.S')
-rw-r--r--arch/s390/kernel/entry64.S16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 4c17eece707..bc5864c5148 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -460,10 +460,18 @@ io_skip:
stmg %r0,%r7,__PT_R0(%r11)
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
stmg %r8,%r9,__PT_PSW(%r11)
+ mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID
TRACE_IRQS_OFF
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+io_loop:
lgr %r2,%r11 # pass pointer to pt_regs
brasl %r14,do_IRQ
+ tm __LC_MACHINE_FLAGS+6,0x10 # MACHINE_FLAG_LPAR
+ jz io_return
+ tpi 0
+ jz io_return
+ mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID
+ j io_loop
io_return:
LOCKDEP_SYS_EXIT
TRACE_IRQS_ON
@@ -605,13 +613,13 @@ ext_skip:
stmg %r0,%r7,__PT_R0(%r11)
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
stmg %r8,%r9,__PT_PSW(%r11)
+ lghi %r1,__LC_EXT_PARAMS2
+ mvc __PT_INT_CODE(4,%r11),__LC_EXT_CPU_ADDR
+ mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS
+ mvc __PT_INT_PARM_LONG(8,%r11),0(%r1)
TRACE_IRQS_OFF
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
- lghi %r1,4096
lgr %r2,%r11 # pass pointer to pt_regs
- llgf %r3,__LC_EXT_CPU_ADDR # get cpu address + interruption code
- llgf %r4,__LC_EXT_PARAMS # get external parameter
- lg %r5,__LC_EXT_PARAMS2-4096(%r1) # get 64 bit external parameter
brasl %r14,do_extint
j io_return