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| author | Qinglin Pan <panqinglin2020@iscas.ac.cn> | 2022-01-27 10:48:42 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-02-14 16:32:42 -0800 |
| commit | 677b9eb8810edc6c616a699018a83e24ed0cccab (patch) | |
| tree | 4cddd519676e2bd7fef6f3de13646663b44692d9 /arch/riscv/include | |
| parent | d10efa21a9374829a662ec1377237e85f430c024 (diff) | |
| download | lwn-677b9eb8810edc6c616a699018a83e24ed0cccab.tar.gz lwn-677b9eb8810edc6c616a699018a83e24ed0cccab.zip | |
riscv: mm: Prepare pt_ops helper functions for sv57
This patch prepare some pt_ops helper functions which will be used in
creating sv57 mappings during boot time.
Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/fixmap.h | 1 | ||||
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h index 58a718573ad6..3cfece8b6568 100644 --- a/arch/riscv/include/asm/fixmap.h +++ b/arch/riscv/include/asm/fixmap.h @@ -25,6 +25,7 @@ enum fixed_addresses { FIX_PTE, FIX_PMD, FIX_PUD, + FIX_P4D, FIX_TEXT_POKE1, FIX_TEXT_POKE0, FIX_EARLYCON_MEM_BASE, diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 58fece3133e9..351cabcd528e 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -133,6 +133,8 @@ struct pt_alloc_ops { phys_addr_t (*alloc_pmd)(uintptr_t va); pud_t *(*get_pud_virt)(phys_addr_t pa); phys_addr_t (*alloc_pud)(uintptr_t va); + p4d_t *(*get_p4d_virt)(phys_addr_t pa); + phys_addr_t (*alloc_p4d)(uintptr_t va); #endif }; |