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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:50 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:43 +0100
commitb50511e41aa51a89b4176784a670582424bc7db6 (patch)
tree0ad1553c7f2431878310e590187ee59ccb4d8cab /arch/s390/kernel/vtime.c
parentb6ef5bb3d93efb95ba855a628740375c2280a59e (diff)
downloadop-kernel-dev-b50511e41aa51a89b4176784a670582424bc7db6.zip
op-kernel-dev-b50511e41aa51a89b4176784a670582424bc7db6.tar.gz
[S390] cleanup psw related bits and pieces
Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros. Change psw_kernel_bits / psw_user_bits to contain only the bits that are always set in the respective mode. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vtime.c')
-rw-r--r--arch/s390/kernel/vtime.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 2d6228f..4f3de98 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -170,7 +170,8 @@ void __kprobes vtime_stop_cpu(void)
psw_t psw;
/* Wait for external, I/O or machine check interrupt. */
- psw.mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_IO | PSW_MASK_EXT;
+ psw.mask = psw_kernel_bits | PSW_MASK_WAIT |
+ PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
idle->nohz_delay = 0;
@@ -183,7 +184,8 @@ void __kprobes vtime_stop_cpu(void)
* set_cpu_timer(VTIMER_MAX_SLICE);
* idle->idle_enter = get_clock();
* __load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
- * PSW_MASK_IO | PSW_MASK_EXT);
+ * PSW_MASK_DAT | PSW_MASK_IO |
+ * PSW_MASK_EXT | PSW_MASK_MCHECK);
* The difference is that the inline assembly makes sure that
* the last three instruction are stpt, stck and lpsw in that
* order. This is done to increase the precision.
@@ -216,7 +218,8 @@ void __kprobes vtime_stop_cpu(void)
* vq->idle = get_cpu_timer();
* idle->idle_enter = get_clock();
* __load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
- * PSW_MASK_IO | PSW_MASK_EXT);
+ * PSW_MASK_DAT | PSW_MASK_IO |
+ * PSW_MASK_EXT | PSW_MASK_MCHECK);
* The difference is that the inline assembly makes sure that
* the last three instruction are stpt, stck and lpsw in that
* order. This is done to increase the precision.
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