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authorNicholas Piggin <npiggin@gmail.com>2018-02-14 01:08:12 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-03-30 23:34:23 +1100
commitd2e60075a3d4422dc54b919f3b125d8066b839d4 (patch)
tree0a053b218a2b6645da86b32e75947899158d3c33 /arch/powerpc/sysdev
parent8e0b634b132752ec3eba50afb952502b1a87d6ba (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/sysdev')
-rw-r--r--arch/powerpc/sysdev/xics/icp-native.c2
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);
}