Messages in this thread Patch in this message | | | From | Eric Lin <> | Subject | [PATCH 3/3] riscv/mm: Add pkmap in print_vm_layout() | Date | Tue, 31 Mar 2020 17:32:41 +0800 |
| |
When enabling CONFIG_HIGHMEM, lowmem will before pkmap region and the memory layout will be like as below:
Virtual kernel memory layout: lowmem : 0xc0000000 - 0xf5400000 ( 852 MB) pkmap : 0xf5600000 - 0xf5800000 ( 2 MB) fixmap : 0xf5800000 - 0xf5c00000 (4096 kB) pci io : 0xf5c00000 - 0xf6c00000 ( 16 MB) vmemmap : 0xf6c00000 - 0xf7bfffff ( 15 MB) vmalloc : 0xf7c00000 - 0xffc00000 ( 128 MB)
Signed-off-by: Eric Lin <tesheng@andestech.com> Cc: Alan Kao <alankao@andestech.com> --- arch/riscv/mm/init.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 59afb479176a..b32d558e3f99 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -80,6 +80,12 @@ static inline void print_mlm(char *name, unsigned long b, unsigned long t) static void print_vm_layout(void) { pr_notice("Virtual kernel memory layout:\n"); +#ifdef CONFIG_HIGHMEM + print_mlm("lowmem", (unsigned long)PAGE_OFFSET, + (unsigned long)high_memory); + print_mlm("pkmap", (unsigned long)PKMAP_BASE, + (unsigned long)FIXADDR_START); +#endif print_mlk("fixmap", (unsigned long)FIXADDR_START, (unsigned long)FIXADDR_TOP); print_mlm("pci io", (unsigned long)PCI_IO_START, @@ -88,8 +94,10 @@ static void print_vm_layout(void) (unsigned long)VMEMMAP_END); print_mlm("vmalloc", (unsigned long)VMALLOC_START, (unsigned long)VMALLOC_END); +#ifndef CONFIG_HIGHMEM print_mlm("lowmem", (unsigned long)PAGE_OFFSET, (unsigned long)high_memory); +#endif } #else static void print_vm_layout(void) { } -- 2.17.0
| |