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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-09 16:32:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-09 16:32:13 -0800 |
| commit | 3510ca19a82ba4c6a17af79c1f0448622a406efa (patch) | |
| tree | 79b9e734100e40f379e9b4c3c50d261c3cdc2fa8 /arch/xtensa/kernel/entry.S | |
| parent | e4da7e9a54649d6877ac23828ff93ce7191eae2c (diff) | |
| parent | afaa7c542cc9c4d8a99ba252a8ea5e8bc7c897e2 (diff) | |
| download | op-kernel-dev-3510ca19a82ba4c6a17af79c1f0448622a406efa.zip op-kernel-dev-3510ca19a82ba4c6a17af79c1f0448622a406efa.tar.gz | |
Merge tag 'xtensa-20151108' of git://github.com/czankel/xtensa-linux
Pull xtensa updates from Chris Zankel:
- fix remaining issues with noMMU cores
- fix build for cores w/o cache or zero overhead loop options
- fix boot of secondary cores in SMP configuration
- add support for DMA to high memory pages
- add dma_to_phys and phys_to_dma functions.
* tag 'xtensa-20151108' of git://github.com/czankel/xtensa-linux:
xtensa: implement dma_to_phys and phys_to_dma
xtensa: support DMA to high memory
Revert "xtensa: cache inquiry and unaligned cache handling functions"
xtensa: drop unused sections and remapped reset handlers
xtensa: fix secondary core boot in SMP
xtensa: add FORCE_MAX_ZONEORDER to Kconfig
xtensa: nommu: provide defconfig for de212 on kc705
xtensa: nommu: xtfpga: add kc705 DTS
xtensa: add de212 core variant
xtensa: nommu: select HAVE_FUTEX_CMPXCHG
xtensa: nommu: fix default memory start address
xtensa: nommu: provide correct KIO addresses
xtensa: nommu: fix USER_RING definition
xtensa: xtfpga: fix integer overflow in TASK_SIZE
xtensa: fix build for configs without cache options
xtensa: fixes for configs without loop option
Diffstat (limited to 'arch/xtensa/kernel/entry.S')
| -rw-r--r-- | arch/xtensa/kernel/entry.S | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index 5041303..db5c176 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -367,8 +367,10 @@ common_exception: s32i a2, a1, PT_SYSCALL movi a2, 0 s32i a3, a1, PT_EXCVADDR +#if XCHAL_HAVE_LOOPS xsr a2, lcount s32i a2, a1, PT_LCOUNT +#endif /* It is now save to restore the EXC_TABLE_FIXUP variable. */ @@ -429,11 +431,12 @@ common_exception: rsync # PS.WOE => rsync => overflow /* Save lbeg, lend */ - +#if XCHAL_HAVE_LOOPS rsr a4, lbeg rsr a3, lend s32i a4, a1, PT_LBEG s32i a3, a1, PT_LEND +#endif /* Save SCOMPARE1 */ @@ -724,13 +727,14 @@ common_exception_exit: wsr a3, sar /* Restore LBEG, LEND, LCOUNT */ - +#if XCHAL_HAVE_LOOPS l32i a2, a1, PT_LBEG l32i a3, a1, PT_LEND wsr a2, lbeg l32i a2, a1, PT_LCOUNT wsr a3, lend wsr a2, lcount +#endif /* We control single stepping through the ICOUNTLEVEL register. */ |
