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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/sysdev/xics | |
| 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/sysdev/xics')
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-native.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index 1459f4e8b698..37bfbc54aacb 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -164,7 +164,7 @@ void icp_native_cause_ipi_rm(int cpu) * Just like the cause_ipi functions, it is required to * include a full barrier before causing the IPI. */ - xics_phys = paca[cpu].kvm_hstate.xics_phys; + xics_phys = paca_ptrs[cpu]->kvm_hstate.xics_phys; mb(); __raw_rm_writeb(IPI_PRIORITY, xics_phys + XICS_MFRR); } |