From: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>
per_perc_atmid is currently a two-byte field that combines two
fields, the PER code and the PER Addressing-and-Translation-Mode
Identification (ATMID)
Let's make them accessible indepently and also rename per_cause to
per_code.
Signed-off-by: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>
Acked-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
arch/s390/include/asm/lowcore.h | 6 ++++--
arch/s390/kernel/asm-offsets.c | 5 +++--
arch/s390/kernel/entry.S | 4 ++--
arch/s390/kernel/entry64.S | 4 ++--
4 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index edfa89b..e88cb8c 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -56,7 +56,8 @@ struct _lowcore {
__u16 pgm_code; /* 0x008e */
__u32 trans_exc_code; /* 0x0090 */
__u16 mon_class_num; /* 0x0094 */
- __u16 per_perc_atmid; /* 0x0096 */
+ __u8 per_code; /* 0x0096 */
+ __u8 per_atmid; /* 0x0097 */
__u32 per_address; /* 0x0098 */
__u32 monitor_code; /* 0x009c */
__u8 exc_access_id; /* 0x00a0 */
@@ -196,7 +197,8 @@ struct _lowcore {
__u16 pgm_code; /* 0x008e */
__u32 data_exc_code; /* 0x0090 */
__u16 mon_class_num; /* 0x0094 */
- __u16 per_perc_atmid; /* 0x0096 */
+ __u8 per_code; /* 0x0096 */
+ __u8 per_atmid; /* 0x0097 */
__u64 per_address; /* 0x0098 */
__u8 exc_access_id; /* 0x00a0 */
__u8 per_access_id; /* 0x00a1 */
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 6a6b93a..32a284d 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -89,9 +89,10 @@ int main(void)
DEFINE(__LC_PGM_ILC, offsetof(struct _lowcore, pgm_ilc));
DEFINE(__LC_PGM_INT_CODE, offsetof(struct _lowcore, pgm_code));
DEFINE(__LC_TRANS_EXC_CODE, offsetof(struct _lowcore, trans_exc_code));
- DEFINE(__LC_PER_CAUSE, offsetof(struct _lowcore, per_perc_atmid));
+ DEFINE(__LC_PER_CODE, offsetof(struct _lowcore, per_code));
+ DEFINE(__LC_PER_ATMID, offsetof(struct _lowcore, per_atmid));
DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
- DEFINE(__LC_PER_PAID, offsetof(struct _lowcore, per_access_id));
+ DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
DEFINE(__LC_AR_MODE_ID, offsetof(struct _lowcore, ar_mode_id));
DEFINE(__LC_SUBCHANNEL_ID, offsetof(struct _lowcore, subchannel_id));
DEFINE(__LC_SUBCHANNEL_NR, offsetof(struct _lowcore, subchannel_nr));
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 526d373..3432098 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -381,8 +381,8 @@ ENTRY(pgm_check_handler)
jz pgm_kprobe
oi __TI_flags+3(%r12),_TIF_PER_TRAP
mvc __THREAD_per_address(4,%r1),__LC_PER_ADDRESS
- mvc __THREAD_per_cause(2,%r1),__LC_PER_CAUSE
- mvc __THREAD_per_paid(1,%r1),__LC_PER_PAID
+ mvc __THREAD_per_cause(2,%r1),__LC_PER_CODE
+ mvc __THREAD_per_paid(1,%r1),__LC_PER_ACCESS_ID
0: REENABLE_IRQS
xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
l %r1,BASED(.Ljump_table)
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index e09dbe5..5880b21 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -413,8 +413,8 @@ ENTRY(pgm_check_handler)
jz pgm_kprobe
oi __TI_flags+7(%r12),_TIF_PER_TRAP
mvc __THREAD_per_address(8,%r14),__LC_PER_ADDRESS
- mvc __THREAD_per_cause(2,%r14),__LC_PER_CAUSE
- mvc __THREAD_per_paid(1,%r14),__LC_PER_PAID
+ mvc __THREAD_per_cause(2,%r14),__LC_PER_CODE
+ mvc __THREAD_per_paid(1,%r14),__LC_PER_ACCESS_ID
0: REENABLE_IRQS
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
larl %r1,pgm_check_table
--
1.8.4.2
--
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