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| author |   Alexandre Ghiti <alex@ghiti.fr> | 2021-07-23 15:01:27 +0200 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2021-08-11 22:41:34 -0700 |
| commit | 977765ce319b98939205cf07aa1d76150713c69b (patch) | |
| tree | d7236c7a09402079493d3c6d857f38651ac99e73 /arch/riscv | |
| parent | riscv: Use __maybe_unused instead of #ifdefs around variable declarations (diff) | |
| download | linux-dev-977765ce319b98939205cf07aa1d76150713c69b.tar.xz linux-dev-977765ce319b98939205cf07aa1d76150713c69b.zip | |
riscv: Simplify BUILTIN_DTB device tree mapping handling
__PAGETABLE_PMD_FOLDED defines a 2-level page table that is only used in
32-bit kernel, so there is no need to check for CONFIG_64BIT in #ifndef
__PAGETABLE_PMD_FOLDED and vice-versa.
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/mm/init.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index a456b5a68d99..a93822df9d81 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -607,18 +607,14 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) pa + PMD_SIZE, PMD_SIZE, PAGE_KERNEL); dtb_early_va = (void *)DTB_EARLY_BASE_VA + (dtb_pa & (PMD_SIZE - 1)); #else /* CONFIG_BUILTIN_DTB */ -#ifdef CONFIG_64BIT /* * __va can't be used since it would return a linear mapping address * whereas dtb_early_va will be used before setup_vm_final installs * the linear mapping. */ dtb_early_va = kernel_mapping_pa_to_va(XIP_FIXUP(dtb_pa)); -#else - dtb_early_va = __va(dtb_pa); -#endif /* CONFIG_64BIT */ #endif /* CONFIG_BUILTIN_DTB */ -#else +#else /* __PAGETABLE_PMD_FOLDED */ #ifndef CONFIG_BUILTIN_DTB /* Create two consecutive PGD mappings for FDT early scan */ pa = dtb_pa & ~(PGDIR_SIZE - 1); @@ -628,13 +624,9 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) pa + PGDIR_SIZE, PGDIR_SIZE, PAGE_KERNEL); dtb_early_va = (void *)DTB_EARLY_BASE_VA + (dtb_pa & (PGDIR_SIZE - 1)); #else /* CONFIG_BUILTIN_DTB */ -#ifdef CONFIG_64BIT - dtb_early_va = kernel_mapping_pa_to_va(XIP_FIXUP(dtb_pa)); -#else dtb_early_va = __va(dtb_pa); -#endif /* CONFIG_64BIT */ #endif /* CONFIG_BUILTIN_DTB */ -#endif +#endif /* __PAGETABLE_PMD_FOLDED */ dtb_early_pa = dtb_pa; /* |