[PATCH] powerpc/32: Display modules range in virtual memory layout

From: Christophe Leroy
Date: Fri Jun 11 2021 - 15:09:00 EST


book3s/32 and 8xx don't use vmalloc for modules.

Print the modules area at startup as part of the virtual memory layout:

[ 0.000000] Kernel virtual memory layout:
[ 0.000000] * 0xffafc000..0xffffc000 : fixmap
[ 0.000000] * 0xc9000000..0xffafc000 : vmalloc & ioremap
[ 0.000000] * 0xb0000000..0xc0000000 : modules
[ 0.000000] Memory: 118480K/131072K available (7152K kernel code, 2320K rwdata, 1328K rodata, 368K init, 854K bss, 12592K reserved, 0K cma-reserved)

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/mm/mem.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 77fce7aa7dc5..c3b4fdda7069 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -302,6 +302,10 @@ void __init mem_init(void)
ioremap_bot, IOREMAP_TOP);
pr_info(" * 0x%08lx..0x%08lx : vmalloc & ioremap\n",
VMALLOC_START, VMALLOC_END);
+#ifdef MODULES_VADDR
+ pr_info(" * 0x%08lx..0x%08lx : modules\n",
+ MODULES_VADDR, MODULES_END);
+#endif
#endif /* CONFIG_PPC32 */
}

--
2.25.0