diff options
| author | Nathan Whitehorn <nwhitehorn@FreeBSD.org> | 2010-12-11 20:29:52 +0000 |
|---|---|---|
| committer | Nathan Whitehorn <nwhitehorn@FreeBSD.org> | 2010-12-11 20:29:52 +0000 |
| commit | 41f15bbbd9ec98c3ef48bc964be8e9f3a43ca0be (patch) | |
| tree | 095418384e3df2434e9ec8cccfd22fd67dcc2140 /sys | |
| parent | 0f30ed5bc6f4eb73fdcd6e7b0f8295461a5c8c02 (diff) | |
| download | src-41f15bbbd9ec98c3ef48bc964be8e9f3a43ca0be.tar.gz src-41f15bbbd9ec98c3ef48bc964be8e9f3a43ca0be.zip | |
Add some isync()s related to the 64-bit MMU scratch page to avoid race
conditions on its invalidation.
Notes
Notes:
svn path=/head/; revision=216383
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/powerpc/aim/mmu_oea64.c | 1 | ||||
| -rw-r--r-- | sys/powerpc/aim/moea64_native.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sys/powerpc/aim/mmu_oea64.c b/sys/powerpc/aim/mmu_oea64.c index cd791f851018..f7026d11f7a8 100644 --- a/sys/powerpc/aim/mmu_oea64.c +++ b/sys/powerpc/aim/mmu_oea64.c @@ -1114,6 +1114,7 @@ void moea64_set_scratchpage_pa(mmu_t mmup, int which, vm_offset_t pa) { MOEA64_PTE_CHANGE(mmup, moea64_scratchpage_pte[which], &moea64_scratchpage_pvo[which]->pvo_pte.lpte, moea64_scratchpage_pvo[which]->pvo_vpn); + isync(); } void diff --git a/sys/powerpc/aim/moea64_native.c b/sys/powerpc/aim/moea64_native.c index a386b93b208e..18698366938c 100644 --- a/sys/powerpc/aim/moea64_native.c +++ b/sys/powerpc/aim/moea64_native.c @@ -292,6 +292,9 @@ moea64_pte_unset_native(mmu_t mmu, uintptr_t pt_cookie, struct lpte *pvo_pt, pvo_pt->pte_hi &= ~LPTE_VALID; + /* Finish all pending operations */ + isync(); + /* * Force the reg & chg bits back into the PTEs. */ |