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There's a single call to local_flush_tlb_page_psize() in the code patching code. That call is never executed on 32-bit Book3S, because it's guarded by mm_patch_enabled() which is essentially a radix_enabled() check, which is always false on 32s. However depending on how the optimiser sees things it may still trip over the BUILD_BUG() in the 32s stub of local_flush_tlb_page_psize(). To avoid that, implement it in terms of flush_range() so that if it ever becomes called it should function, even if not optimally. Note that flush_range() deals with page aligning the address and so on, and that 32s doesn't support huge pages so there should be no issue with non-standard page sizes needing to be flushed. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231023092319.1507325-1-mpe@ellerman.id.au |
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| 64 | ||
| pgalloc.h | ||
| pgtable.h | ||
| tlbflush.h | ||