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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-11-16 17:10:27 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-11-16 17:10:27 +0100 |
| commit | 50d25bdc64318a8a367c4433fa1e030c38331f05 (patch) | |
| tree | eb191d2950ae55da3855254c04db65d62757f4d5 /arch/xtensa/kernel | |
| parent | Merge tag 'for-linus-20181115' of git://git.kernel.dk/linux-block (diff) | |
| parent | xtensa: fix boot parameters address translation (diff) | |
| download | linux-50d25bdc64318a8a367c4433fa1e030c38331f05.tar.xz linux-50d25bdc64318a8a367c4433fa1e030c38331f05.zip | |
Merge tag 'xtensa-20181115' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa fixes from Max Filippov:
- fix stack alignment for bFLT binaries.
- fix physical-to-virtual address translation for boot parameters in
MMUv3 256+256 and 512+512 virtual memory layouts.
* tag 'xtensa-20181115' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: fix boot parameters address translation
xtensa: make sure bFLT stack is 16 byte aligned
Diffstat (limited to 'arch/xtensa/kernel')
| -rw-r--r-- | arch/xtensa/kernel/head.S | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S index 2f76118ecf62..9053a5622d2c 100644 --- a/arch/xtensa/kernel/head.S +++ b/arch/xtensa/kernel/head.S @@ -88,9 +88,12 @@ _SetupMMU: initialize_mmu #if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY rsr a2, excsave1 - movi a3, 0x08000000 + movi a3, XCHAL_KSEG_PADDR + bltu a2, a3, 1f + sub a2, a2, a3 + movi a3, XCHAL_KSEG_SIZE bgeu a2, a3, 1f - movi a3, 0xd0000000 + movi a3, XCHAL_KSEG_CACHED_VADDR add a2, a2, a3 wsr a2, excsave1 1: |