diff options
| author |   Nicholas Piggin <npiggin@gmail.com> | 2022-09-26 13:40:56 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-09-28 19:22:12 +1000 |
| commit | 8e93fb33c84f68db20c0bc2821334a4c54c3e251 (patch) | |
| tree | 4059b8f1c36243441e504873b443362531e6a5f7 /arch/powerpc/kernel/head_64.S | |
| parent | powerpc/64: switch asm helpers from GOT to TOC relative addressing (diff) | |
| download | linux-dev-8e93fb33c84f68db20c0bc2821334a4c54c3e251.tar.xz linux-dev-8e93fb33c84f68db20c0bc2821334a4c54c3e251.zip | |
powerpc/64: provide a helper macro to load r2 with the kernel TOC
A later change stops the kernel using r2 and loads it with a poison
value. Provide a PACATOC loading abstraction which can hide this
detail.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926034057.2360083-5-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/head_64.S')
| -rw-r--r-- | arch/powerpc/kernel/head_64.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index c79da95dfd2e..c63e0c086f03 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -841,7 +841,7 @@ __secondary_start: * before going into C code. */ start_secondary_prolog: - ld r2,PACATOC(r13) + LOAD_PACA_TOC() li r3,0 std r3,0(r1) /* Zero the stack frame pointer */ bl start_secondary @@ -981,7 +981,7 @@ start_here_common: std r1,PACAKSAVE(r13) /* Load the TOC (virtual address) */ - ld r2,PACATOC(r13) + LOAD_PACA_TOC() /* Mark interrupts soft and hard disabled (they might be enabled * in the PACA when doing hotplug) |