[PATCH 3/3] riscv/mm: Add pkmap in print_vm_layout()

[Eric Lin]

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@xxxxxxxxxxxxx>
Cc: Alan Kao <alankao@xxxxxxxxxxxxx>
---
 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