diff options
author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-14 01:08:12 +1000 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-30 23:34:23 +1100 |
commit | d2e60075a3d4422dc54b919f3b125d8066b839d4 (patch) | |
tree | 0a053b218a2b6645da86b32e75947899158d3c33 /arch/powerpc/kernel/crash.c | |
parent | 8e0b634b132752ec3eba50afb952502b1a87d6ba (diff) |
powerpc/64: Use array of paca pointers and allocate pacas individually
Change the paca array into an array of pointers to pacas. Allocate
pacas individually.
This allows flexibility in where the PACAs are allocated. Future work
will allocate them node-local. Platforms that don't have address limits
on PACAs would be able to defer PACA allocations until later in boot
rather than allocate all possible ones up-front then freeing unused.
This is slightly more overhead (one additional indirection) for cross
CPU paca references, but those aren't too common.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/crash.c')
-rw-r--r-- | arch/powerpc/kernel/crash.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index 00b215125d3e..17c8b99680f2 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -238,7 +238,7 @@ static void __maybe_unused crash_kexec_wait_realmode(int cpu) if (i == cpu) continue; - while (paca[i].kexec_state < KEXEC_STATE_REAL_MODE) { + while (paca_ptrs[i]->kexec_state < KEXEC_STATE_REAL_MODE) { barrier(); if (!cpu_possible(i) || !cpu_online(i) || (msecs <= 0)) break; |