Nathan Whitehorn 83c01b8cf6 Close a race involving the OEA64 scratchpage. When the scratch page's ... physical address is changed, there is a brief window during which its PTE is invalid. Since moea64_set_scratchpage_pa() does not and cannot hold the page table lock, it was possible for another CPU to insert a new PTE into the scratch page's PTEG slot during this interval, corrupting both mappings. Solve this by creating a new flag, LPTE_LOCKED, such that moea64_pte_insert will avoid claiming locked PTEG slots even if they are invalid. This change also incorporates some additional paranoia added to solve things I thought might be this bug. Reported by: linimon		2010-02-24 00:54:37 +00:00
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aim	Close a race involving the OEA64 scratchpage. When the scratch page's	2010-02-24 00:54:37 +00:00
booke	Merge r198724 to Book-E. casuword() non-atomically read the current value	2010-02-20 16:13:43 +00:00
compile
conf	Adjust style (following the already existing rules) for the newly	2010-02-15 23:44:48 +00:00
cpufreq	Add cpufreq support on the PowerPC G5, along with a skeleton SMU driver	2009-06-23 04:28:32 +00:00
fpu	Include <sys/types.h> before <sys/systm.h> to get typedefs required	2008-04-09 08:50:37 +00:00
include	Close a race involving the OEA64 scratchpage. When the scratch page's	2010-02-24 00:54:37 +00:00
mpc85xx	Make PCI Express host controllers functional, by:	2010-02-01 17:51:01 +00:00
ofw	Update d_mmap() to accept vm_ooffset_t and vm_memattr_t.	2009-12-29 21:51:28 +00:00
powermac	Provide a new useless feature: an led(4) interface for the system's sleep	2010-02-22 18:49:43 +00:00
powerpc	Turn on experimental support for DEEPNAP on the 970MP.	2010-02-20 16:14:19 +00:00
psim	Unbreak build.	2009-12-06 17:26:43 +00:00