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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-13 18:08:12 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-30 15:34:23 +0300 |
| commit | d2e60075a3d4422dc54b919f3b125d8066b839d4 (patch) | |
| tree | 0a053b218a2b6645da86b32e75947899158d3c33 /arch/powerpc/platforms/powernv/smp.c | |
| parent | 8e0b634b132752ec3eba50afb952502b1a87d6ba (diff) | |
| download | linux-d2e60075a3d4422dc54b919f3b125d8066b839d4.tar.xz | |
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/platforms/powernv/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 9664c8461f03..19af6de6b6f0 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -80,7 +80,7 @@ static int pnv_smp_kick_cpu(int nr) * If we already started or OPAL is not supported, we just * kick the CPU via the PACA */ - if (paca[nr].cpu_start || !firmware_has_feature(FW_FEATURE_OPAL)) + if (paca_ptrs[nr]->cpu_start || !firmware_has_feature(FW_FEATURE_OPAL)) goto kick; /* |