Frederic Barrat cca19f0b68 powerpc/64s/radix: Fix missing global invalidations when removing copro ... With the optimizations for TLB invalidation from commit 0cef77c779 ("powerpc/64s/radix: flush remote CPUs out of single-threaded mm_cpumask"), the scope of a TLBI (global vs. local) can now be influenced by the value of the 'copros' counter of the memory context. When calling mm_context_remove_copro(), the 'copros' counter is decremented first before flushing. It may have the unintended side effect of sending local TLBIs when we explicitly need global invalidations in this case. Thus breaking any nMMU user in a bad and unpredictable way. Fix it by flushing first, before updating the 'copros' counter, so that invalidations will be global. Fixes: 0cef77c779 ("powerpc/64s/radix: flush remote CPUs out of single-threaded mm_cpumask") Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2018-08-01 23:23:41 +10:00
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asm	powerpc/64s/radix: Fix missing global invalidations when removing copro	2018-08-01 23:23:41 +10:00
uapi/asm	powerpc: Wire up io_pgetevents	2018-06-23 21:43:21 +10:00