git: 719908c81300 - main - arm64: Merge common page table creation code
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Date: Fri, 10 May 2024 09:30:12 UTC
The branch main has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=719908c8130012234898c3602eb0c0db9af0a620 commit 719908c8130012234898c3602eb0c0db9af0a620 Author: Andrew Turner <andrew@FreeBSD.org> AuthorDate: 2024-04-25 13:06:23 +0000 Commit: Andrew Turner <andrew@FreeBSD.org> CommitDate: 2024-05-10 09:29:24 +0000 arm64: Merge common page table creation code Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D45061 --- sys/arm64/arm64/locore.S | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/sys/arm64/arm64/locore.S b/sys/arm64/arm64/locore.S index 94a50b735bc6..67bdece402c2 100644 --- a/sys/arm64/arm64/locore.S +++ b/sys/arm64/arm64/locore.S @@ -520,17 +520,27 @@ common: * when the page size is larger than 4k, L2 blocks are too large to * map the kernel with such an alignment. */ +#define PTE_SHIFT L3_SHIFT +#define BUILD_PTE_FUNC build_l3_page_pagetable +#else +#define PTE_SHIFT L2_SHIFT +#define BUILD_PTE_FUNC build_l2_block_pagetable +#endif - /* Get the number of l3 pages to allocate, rounded down */ - lsr x10, x8, #(L3_SHIFT) + /* Get the number of blocks/pages to allocate, rounded down */ + lsr x10, x8, #(PTE_SHIFT) - /* Create the kernel space L2 table */ + /* Create the kernel space PTE table */ mov x6, x26 mov x7, #(ATTR_S1_IDX(VM_MEMATTR_WRITE_BACK)) mov x8, #(KERNBASE) mov x9, x28 - bl build_l3_page_pagetable + bl BUILD_PTE_FUNC + +#undef PTE_SHIFT +#undef BUILD_PTE_FUNC +#if PAGE_SIZE != PAGE_SIZE_4K /* Move to the l2 table */ ldr x9, =(PAGE_SIZE * L3_PAGE_COUNT) add x26, x26, x9 @@ -539,16 +549,6 @@ common: mov x9, x6 mov x6, x26 bl link_l2_pagetable -#else - /* Get the number of l2 pages to allocate, rounded down */ - lsr x10, x8, #(L2_SHIFT) - - /* Create the kernel space L2 table */ - mov x6, x26 - mov x7, #(ATTR_S1_IDX(VM_MEMATTR_WRITE_BACK)) - mov x8, #(KERNBASE) - mov x9, x28 - bl build_l2_block_pagetable #endif /* Move to the l1 table */