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| author | Prem Mallappa <prem.mallappa@gmail.com> | 2013-08-30 15:35:10 +0530 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-09-05 20:53:37 +0200 |
| commit | 273463b78237b53936a61046bfb4c8e55150ca24 (patch) | |
| tree | d76ddceaeb9f2377dc504e451aed34e31c5463fb /arch | |
| parent | 8533966a6dba09d65a6764accdf44f3e96cddbfb (diff) | |
| download | linux-273463b78237b53936a61046bfb4c8e55150ca24.tar.gz linux-273463b78237b53936a61046bfb4c8e55150ca24.tar.bz2 linux-273463b78237b53936a61046bfb4c8e55150ca24.zip | |
MIPS: kdump: Skip walking indirection page for crashkernels
KDUMP: skip indirection page, as crashkernel has already copied to destination
[ralf@linux-mips.org: cosmetic changes.]
Signed-off-by: Prem Mallappa <pmallappa@caviumnetworks.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/5786/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/relocate_kernel.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S index 43d2d78d3287..74bab9ddd0e1 100644 --- a/arch/mips/kernel/relocate_kernel.S +++ b/arch/mips/kernel/relocate_kernel.S @@ -26,6 +26,12 @@ process_entry: PTR_L s2, (s0) PTR_ADD s0, s0, SZREG + /* + * In case of a kdump/crash kernel, the indirection page is not + * populated as the kernel is directly copied to a reserved location + */ + beqz s2, done + /* destination page */ and s3, s2, 0x1 beq s3, zero, 1f |