* [PATCH] powerpc/32: Display modules range in virtual memory layout
@ 2021-06-11 19:08 Christophe Leroy
2021-06-18 3:51 ` Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Christophe Leroy @ 2021-06-11 19:08 UTC (permalink / raw)
To: Benjamin Herrenschmidt, Paul Mackerras, Michael Ellerman
Cc: linux-kernel, linuxppc-dev
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@csgroup.eu>
---
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powerpc/32: Display modules range in virtual memory layout
2021-06-11 19:08 [PATCH] powerpc/32: Display modules range in virtual memory layout Christophe Leroy
@ 2021-06-18 3:51 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2021-06-18 3:51 UTC (permalink / raw)
To: Paul Mackerras, Michael Ellerman, Benjamin Herrenschmidt,
Christophe Leroy
Cc: linuxppc-dev, linux-kernel
On Fri, 11 Jun 2021 19:08:54 +0000 (UTC), Christophe Leroy wrote:
> 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)
Applied to powerpc/next.
[1/1] powerpc/32: Display modules range in virtual memory layout
https://git.kernel.org/powerpc/c/baf24d23be7d2357a2aa9c5ffb6a2d680ac2a68c
cheers
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