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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-09 21:38:16 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-09 21:38:16 (GMT) |
| commit | c61c48dfe00907007df3b87e4ed271a5c143bdda (patch) | |
| tree | 6d26bd3a8b4aa3cf35cad35fa27d1e0afe715db3 /arch/xtensa/kernel/vectors.S | |
| parent | e30f4192456971623b40c97a027346b69457ef69 (diff) | |
| parent | b341d84c8ac5ecbf7aa0b3ccd0745d87e881953c (diff) | |
| download | linux-fsl-qoriq-c61c48dfe00907007df3b87e4ed271a5c143bdda.tar.xz | |
Merge tag 'xtensa-next-20130508' of git://github.com/czankel/xtensa-linux
Pull xtensa updates from Chris Zankel:
"Support for the latest MMU architecture that allows for a larger
accessible memory region, and various bug-fixes"
* tag 'xtensa-next-20130508' of git://github.com/czankel/xtensa-linux:
xtensa: Switch to asm-generic/linkage.h
xtensa: fix redboot load address
xtensa: ISS: fix timer_lock usage in rs_open
xtensa: disable IRQs while IRQ handler is running
xtensa: enable lockdep support
xtensa: fix arch_irqs_disabled_flags implementation
xtensa: add irq flags trace support
xtensa: provide custom CALLER_ADDR* implementations
xtensa: add stacktrace support
xtensa: clean up stpill_registers
xtensa: don't use a7 in simcalls
xtensa: don't attempt to use unconfigured timers
xtensa: provide default platform_pcibios_init implementation
xtensa: remove KCORE_ELF again
xtensa: document MMUv3 setup sequence
xtensa: add MMU v3 support
xtensa: fix ibreakenable register update
xtensa: fix oprofile building as module
Diffstat (limited to 'arch/xtensa/kernel/vectors.S')
| -rw-r--r-- | arch/xtensa/kernel/vectors.S | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/xtensa/kernel/vectors.S b/arch/xtensa/kernel/vectors.S index 82109b42..f9e1753 100644 --- a/arch/xtensa/kernel/vectors.S +++ b/arch/xtensa/kernel/vectors.S @@ -50,6 +50,7 @@ #include <asm/processor.h> #include <asm/page.h> #include <asm/thread_info.h> +#include <asm/vectors.h> #define WINDOW_VECTORS_SIZE 0x180 @@ -220,7 +221,7 @@ ENTRY(_DoubleExceptionVector) xsr a0, depc # get DEPC, save a0 - movi a3, XCHAL_WINDOW_VECTORS_VADDR + movi a3, WINDOW_VECTORS_VADDR _bltu a0, a3, .Lfixup addi a3, a3, WINDOW_VECTORS_SIZE _bgeu a0, a3, .Lfixup @@ -385,9 +386,12 @@ ENDPROC(_DebugInterruptVector) .if XCHAL_EXCM_LEVEL >= \level .section .Level\level\()InterruptVector.text, "ax" ENTRY(_Level\level\()InterruptVector) - wsr a0, epc1 + wsr a0, excsave2 rsr a0, epc\level - xsr a0, epc1 + wsr a0, epc1 + movi a0, EXCCAUSE_LEVEL1_INTERRUPT + wsr a0, exccause + rsr a0, eps\level # branch to user or kernel vector j _SimulateUserKernelVectorException .endif @@ -439,10 +443,8 @@ ENDPROC(_WindowOverflow4) */ .align 4 _SimulateUserKernelVectorException: - wsr a0, excsave2 - movi a0, 4 # LEVEL1_INTERRUPT cause - wsr a0, exccause - rsr a0, ps + addi a0, a0, (1 << PS_EXCM_BIT) + wsr a0, ps bbsi.l a0, PS_UM_BIT, 1f # branch if user mode rsr a0, excsave2 # restore a0 j _KernelExceptionVector # simulate kernel vector exception |