diff options
| author | Tiejun Chen <tiejun.chen@windriver.com> | 2013-10-23 11:31:22 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-03-20 01:57:10 +0100 |
| commit | 19007b340d4ee2957938b29d63c2077ce1368ec8 (patch) | |
| tree | 1e047daaeada9a48d193c94c855c185e794b08da /arch | |
| parent | powerpc/book3e: initialize crit/mc/dbg kernel stack pointers (diff) | |
| download | linux-19007b340d4ee2957938b29d63c2077ce1368ec8.tar.xz linux-19007b340d4ee2957938b29d63c2077ce1368ec8.zip | |
powerpc/book3e: store crit/mc/dbg exception thread info
We need to store thread info to these exception thread info like something
we already did for PPC32.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64e.S | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 063b65dd4f27..6772512bd0bd 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -36,6 +36,19 @@ */ #define SPECIAL_EXC_FRAME_SIZE INT_FRAME_SIZE +/* Now we only store something to exception thread info */ +#define EXC_LEVEL_EXCEPTION_PROLOG(type) \ + ld r14,PACAKSAVE(r13); \ + CURRENT_THREAD_INFO(r14, r14); \ + CURRENT_THREAD_INFO(r15, r1); \ + ld r10,TI_FLAGS(r14); \ + std r10,TI_FLAGS(r15); \ + ld r10,TI_PREEMPT(r14); \ + std r10,TI_PREEMPT(r15); \ + ld r10,TI_TASK(r14); \ + std r10,TI_TASK(r15); + + /* Exception prolog code for all exceptions */ #define EXCEPTION_PROLOG(n, intnum, type, addition) \ mtspr SPRN_SPRG_##type##_SCRATCH,r13; /* get spare registers */ \ @@ -69,19 +82,22 @@ #define CRIT_SET_KSTACK \ ld r1,PACA_CRIT_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(CRIT); #define SPRN_CRIT_SRR0 SPRN_CSRR0 #define SPRN_CRIT_SRR1 SPRN_CSRR1 #define DBG_SET_KSTACK \ ld r1,PACA_DBG_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(DBG); #define SPRN_DBG_SRR0 SPRN_DSRR0 #define SPRN_DBG_SRR1 SPRN_DSRR1 #define MC_SET_KSTACK \ ld r1,PACA_MC_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(MC); #define SPRN_MC_SRR0 SPRN_MCSRR0 #define SPRN_MC_SRR1 SPRN_MCSRR1 |