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| author | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-23 03:59:17 +0100 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-23 03:59:17 +0100 |
| commit | 8eace9fb39605f0e201223fd34306ba3b53969b7 (patch) | |
| tree | b2ad7df8e721af50d2026874b22b885d29c1d8e4 /arch/riscv/mm | |
| parent | Merge branch 'next/nommu' into for-next (diff) | |
| parent | RISC-V: Add address map dumper (diff) | |
| download | linux-8eace9fb39605f0e201223fd34306ba3b53969b7.tar.xz linux-8eace9fb39605f0e201223fd34306ba3b53969b7.zip | |
Merge branch 'next/misc2' into for-next
Diffstat (limited to 'arch/riscv/mm')
| -rw-r--r-- | arch/riscv/mm/init.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index b2fe9d1be833..69f6678db7f3 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -46,6 +46,37 @@ static void setup_zero_page(void) memset((void *)empty_zero_page, 0, PAGE_SIZE); } +#ifdef CONFIG_DEBUG_VM +static inline void print_mlk(char *name, unsigned long b, unsigned long t) +{ + pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld kB)\n", name, b, t, + (((t) - (b)) >> 10)); +} + +static inline void print_mlm(char *name, unsigned long b, unsigned long t) +{ + pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld MB)\n", name, b, t, + (((t) - (b)) >> 20)); +} + +static void print_vm_layout(void) +{ + pr_notice("Virtual kernel memory layout:\n"); + print_mlk("fixmap", (unsigned long)FIXADDR_START, + (unsigned long)FIXADDR_TOP); + print_mlm("pci io", (unsigned long)PCI_IO_START, + (unsigned long)PCI_IO_END); + print_mlm("vmemmap", (unsigned long)VMEMMAP_START, + (unsigned long)VMEMMAP_END); + print_mlm("vmalloc", (unsigned long)VMALLOC_START, + (unsigned long)VMALLOC_END); + print_mlm("lowmem", (unsigned long)PAGE_OFFSET, + (unsigned long)high_memory); +} +#else +static void print_vm_layout(void) { } +#endif /* CONFIG_DEBUG_VM */ + void __init mem_init(void) { #ifdef CONFIG_FLATMEM @@ -56,6 +87,7 @@ void __init mem_init(void) memblock_free_all(); mem_init_print_info(NULL); + print_vm_layout(); } #ifdef CONFIG_BLK_DEV_INITRD |