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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series aim to share the pgtable manipulation code to head.S and trans_pgd_idmap_page(). The core of the idea is by redefinition the CONFIG_PGTABLE_LEVEL, two sets of pgtable manipulation code are generated, one as now is for swapper_pg_dir, the other one is for idmap. And a dedicated create_idmap() API is introduced. The series can be grouped into two [1~5/10] achieves porting trans_pgd_idmap_page() and introduce create_idmap() API [6-10/10] replace head.S pgtable manipulation asm with calling to __create_pgd_mapping() This series can success booting with the following configuration on Cavium ThunderX 88XX cpu : PAGE_SIZE VA PA PGTABLE_LEVEL 4K 48 48 4 4K 39 48 3 16K 48 48 4 16K 47 48 3 64K 52 52 3 64K 42 52 2 History RFC: https://lore.kernel.org/linux-arm-kernel/20210410095654.24102-1-kernelfans@gmail.com/ Cc: Catalin Marinas Cc: Will Deacon Cc: Marc Zyngier Cc: Kristina Martsenko Cc: James Morse Cc: Steven Price Cc: Jonathan Cameron Cc: Pavel Tatashin Cc: Anshuman Khandual Cc: Atish Patra Cc: Mike Rapoport Cc: Logan Gunthorpe Cc: Mark Brown To: linux-arm-kernel@lists.infradead.org Pingfan Liu (10): arm64/mm: split out __create_pgd_mapping() routines arm64/mm: change __create_pgd_mapping() to accept nr_entries param and introduce create_idmap() arm64/mm: change __create_pgd_mapping() to accept extra parameter for allocator arm64/mm: enable __create_pgd_mapping() to run across different pgtable arm64/mm: port trans_pgd_idmap_page() onto create_idmap() arm64/mm: introduce pgtable allocator for idmap_pg_dir and init_pg_dir arm64/pgtable-prot.h: reorganize to cope with asm arm64/mmu_include.c: disable WARN_ON() and BUG_ON() when booting. arm64/mm: make __create_pgd_mapping() coped with pgtable's paddr arm64/head: convert idmap_pg_dir and init_pg_dir to __create_pgd_mapping() arch/arm64/Kconfig | 4 + arch/arm64/include/asm/pgalloc.h | 29 +++ arch/arm64/include/asm/pgtable-prot.h | 34 ++- arch/arm64/kernel/head.S | 196 ++++---------- arch/arm64/mm/Makefile | 2 + arch/arm64/mm/idmap_mmu.c | 39 +++ arch/arm64/mm/mmu.c | 362 ++++++-------------------- arch/arm64/mm/mmu_include.c | 320 +++++++++++++++++++++++ arch/arm64/mm/trans_pgd.c | 62 +++-- 9 files changed, 579 insertions(+), 469 deletions(-) create mode 100644 arch/arm64/mm/idmap_mmu.c create mode 100644 arch/arm64/mm/mmu_include.c -- 2.29.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel