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Revert "convert SLB miss handlers to C" and subsequent commits

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This reverts commits:
  5e46e29e6a ("powerpc/64s/hash: convert SLB miss handlers to C")
  8fed04d0f6 ("powerpc/64s/hash: remove user SLB data from the paca")
  655deecf67 ("powerpc/64s/hash: SLB allocation status bitmaps")
  2e1626744e ("powerpc/64s/hash: provide arch_setup_exec hooks for hash slice setup")
  89ca4e126a ("powerpc/64s/hash: Add a SLB preload cache")

This series had a few bugs, and the fixes are not all trivial. So
revert most of it for now.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman
2018-10-02 23:56:39 +10:00
parent 0823c68b05
commit 54be0b9c7c
19 changed files with 774 additions and 465 deletions
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arch/powerpc/include/asm/processor.h
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@@ -273,7 +273,6 @@ struct thread_struct {
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
struct arch_hw_breakpoint hw_brk; /* info on the hardware breakpoint */
unsigned long trap_nr; /* last trap # on this thread */
u8 load_slb; /* Ages out SLB preload cache entries */
u8 load_fp;
#ifdef CONFIG_ALTIVEC
u8 load_vec;