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On cheetahplus chips we take the ctx_alloc_lock in order to modify the TLB lookup parameters for the indexed TLBs, which are stored in the context register. This is called with interrupts disabled, however ctx_alloc_lock is an IRQ safe lock, therefore we must take acquire/release it properly with spin_{lock,unlock}_irq(). Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net> |
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.. | ||
extable.c | ||
fault_32.c | ||
fault_64.c | ||
gup.c | ||
highmem.c | ||
hugetlbpage.c | ||
hypersparc.S | ||
init_32.c | ||
init_64.c | ||
init_64.h | ||
io-unit.c | ||
iommu.c | ||
leon_mm.c | ||
Makefile | ||
mm_32.h | ||
srmmu_access.S | ||
srmmu.c | ||
swift.S | ||
tlb.c | ||
tsb.c | ||
tsunami.S | ||
ultra.S | ||
viking.S |