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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 09:00:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 09:00:40 -0700
commit1d767cae4dbd4116fc3b2cc3251a20760f98339f (patch)
tree79a1a48a67a9b4296ce062d61ee863fe7a46c77f /arch/sh/kernel/cpu/sh5
parent6101167727932a929e37fb8a6eeb68bdbf54d58e (diff)
parent5f19f14fed7786652b9617c633db101d26a42251 (diff)
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Pull SuperH updates from Paul Mundt: - New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A) - New boards: RSK2+SH7264, RSK2+SH7269 - Unbreaking kgdb for SMP - Consolidation of _32/_64 page fault handling. - watchdog and legacy DMA chainsawing, part 1 - Conversion to evt2irq() hwirq lookup, to support relocation of vectored IRQs for irqdomains. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (98 commits) sh: intc: Kill off special reservation interface. sh: Enable PIO API for hp6xx and se770x. sh: Kill off machvec IRQ hinting. sh: dma: More legacy cpu dma chainsawing. sh: Kill off MAX_DMA_ADDRESS leftovers. sh: Tidy up some of the cpu legacy dma header mess. sh: Move sh4a dma header from cpu-sh4 to cpu-sh4a. sh64: Fix up vmalloc fault range check. Revert "sh: Ensure fixmap and store queue space can co-exist." serial: sh-sci: Fix for port types without BRI interrupts. sh: legacy PCI evt2irq migration. sh: cpu dma evt2irq migration. sh: sh7763rdp evt2irq migration. sh: sdk7780 evt2irq migration. sh: migor evt2irq migration. sh: landisk evt2irq migration. sh: kfr2r09 evt2irq migration. sh: ecovec24 evt2irq migration. sh: ap325rxa evt2irq migration. sh: urquell evt2irq migration. ...
Diffstat (limited to 'arch/sh/kernel/cpu/sh5')
-rw-r--r--arch/sh/kernel/cpu/sh5/entry.S22
-rw-r--r--arch/sh/kernel/cpu/sh5/fpu.c3
2 files changed, 10 insertions, 15 deletions
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 6b80295dd7a..ff1f0e6e9be 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -335,7 +335,7 @@ tlb_miss:
/* If the fast path handler fixed the fault, just drop through quickly
to the restore code right away to return to the excepting context.
*/
- beqi/u r2, 0, tr1
+ bnei/u r2, 0, tr1
fast_tlb_miss_restore:
ld.q SP, SAVED_TR0, r2
@@ -1079,9 +1079,8 @@ restore_all:
*
* Kernel TLB fault handlers will get a slightly different interface.
* (r2) struct pt_regs *, original register's frame pointer
- * (r3) writeaccess, whether it's a store fault as opposed to load fault
- * (r4) execaccess, whether it's a ITLB fault as opposed to DTLB fault
- * (r5) Effective Address of fault
+ * (r3) page fault error code (see asm/thread_info.h)
+ * (r4) Effective Address of fault
* (LINK) return address
* (SP) = r2
*
@@ -1092,26 +1091,25 @@ restore_all:
tlb_miss_load:
or SP, ZERO, r2
or ZERO, ZERO, r3 /* Read */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
+ getcon TEA, r4
pta call_do_page_fault, tr0
beq ZERO, ZERO, tr0
tlb_miss_store:
or SP, ZERO, r2
- movi 1, r3 /* Write */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
+ movi FAULT_CODE_WRITE, r3 /* Write */
+ getcon TEA, r4
pta call_do_page_fault, tr0
beq ZERO, ZERO, tr0
itlb_miss_or_IRQ:
pta its_IRQ, tr0
beqi/u r4, EVENT_INTERRUPT, tr0
+
+ /* ITLB miss */
or SP, ZERO, r2
- or ZERO, ZERO, r3 /* Read */
- movi 1, r4 /* Text */
- getcon TEA, r5
+ movi FAULT_CODE_ITLB, r3
+ getcon TEA, r4
/* Fall through */
call_do_page_fault:
diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c
index 4b3bb35e99f..9f8713aa718 100644
--- a/arch/sh/kernel/cpu/sh5/fpu.c
+++ b/arch/sh/kernel/cpu/sh5/fpu.c
@@ -107,8 +107,5 @@ asmlinkage void do_fpu_error(unsigned long ex, struct pt_regs *regs)
regs->pc += 4;
- tsk->thread.trap_no = 11;
- tsk->thread.error_code = 0;
-
force_sig(SIGFPE, tsk);
}