diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2022-09-26 15:56:18 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-09-28 19:22:13 +1000 |
| commit | b830c8754e046f96e84da9d3b3e028c4ceef2b18 (patch) | |
| tree | 99a663084d640cf5ddbfaa76f29e2056f88954b4 /arch/powerpc/kernel/setup_64.c | |
| parent | 2f5182cffa43f31c241131a2c10a4ecd8e90fb3e (diff) | |
powerpc/64: avoid using r13 in relocate
relocate() uses r13 in early boot before it is used for the paca. Use
a different register for this so r13 is kept unchanged until it is
set to the paca pointer.
Avoid r14 as well while we're here, there's no reason not to use the
volatile registers which is a bit less surprising, and r14 could be used
as another fixed reg one day.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926055620.2676869-4-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
0 files changed, 0 insertions, 0 deletions