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82d8f4c22f
POWER9 introduces SLBIA IH=3, which invalidates all SLB entries and associated lookaside information that have a class value of 1, which Linux assigns to user addresses. This matches what switch_slb wants, and allows a simple fast implementation that avoids the slb_cache complexity. As a side-effect, the POWER5 < DD2.1 SLB invalidation workaround is also avoided on POWER9. Process context switching rate is improved about 2.2% for a small process that hits the slb cache which is the best case for the current code. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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| .. | ||
| ansidecl.h | ||
| dis-asm.h | ||
| Makefile | ||
| nonstdio.c | ||
| nonstdio.h | ||
| ppc-dis.c | ||
| ppc-opc.c | ||
| ppc.h | ||
| spr_access.S | ||
| spu-dis.c | ||
| spu-insns.h | ||
| spu-opc.c | ||
| spu.h | ||
| xmon.c | ||