add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/powerpc/include/asm/book3s/pgtable.h
..
..
@@ -26,5 +26,16 @@
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 				     unsigned long size, pgprot_t vma_prot);
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 #define __HAVE_PHYS_MEM_ACCESS_PROT
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+/*
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+ * This gets called at the end of handling a page fault, when
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+ * the kernel has put a new PTE into the page table for the process.
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+ * We use it to ensure coherency between the i-cache and d-cache
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+ * for the page which has just been mapped in.
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+ * On machines which use an MMU hash table, we use this to put a
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+ * corresponding HPTE into the hash table ahead of time, instead of
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+ * waiting for the inevitable extra hash-table miss exception.
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+ */
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+void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep);
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+
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 #endif /* __ASSEMBLY__ */
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 #endif