UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

powerpc/ptdump: drop dummy KERN_VIRT_START on PPC32 

PPC32 doesn't have KERN_VIRT_START. Make PAGE_OFFSET the
default starting address for the dump, and drop the dummy
definition of KERN_VIRT_START. Only use KERN_VIRT_START for
non radix PPC64.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/334632b1df4775b0ccf3bdc8d6b201d14e3daedd.1565786091.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy 2019-08-14 12:36:11 +00:00 committed by Michael Ellerman
parent e033829d2a
commit 8224235272
1 changed files with 8 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
arch/powerpc/mm/ptdump/ptdump.c
View File

@ -26,10 +26,6 @@
#include "ptdump.h"
#ifdef CONFIG_PPC32
#define KERN_VIRT_START 0
#endif
/*
* To visualise what is happening,
*
@ -362,12 +358,13 @@ static int ptdump_show(struct seq_file *m, void *v)
struct pg_state st = {
.seq = m,
.marker = address_markers,
.start_address = PAGE_OFFSET,
};
if (radix_enabled())
st.start_address = PAGE_OFFSET;
else
#ifdef CONFIG_PPC64
if (!radix_enabled())
st.start_address = KERN_VIRT_START;
#endif
/* Traverse kernel page tables */
walk_pagetables(&st);
@ -405,12 +402,13 @@ void ptdump_check_wx(void)
.seq = NULL,
.marker = address_markers,
.check_wx = true,
.start_address = PAGE_OFFSET,
};
if (radix_enabled())
st.start_address = PAGE_OFFSET;
else
#ifdef CONFIG_PPC64
if (!radix_enabled())
st.start_address = KERN_VIRT_START;
#endif
walk_pagetables(&st);