xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/64s: Allocate LPPACAs individually

Browse Source 
We no longer allocate lppacas in an array, so this patch removes the
1kB static alignment for the structure, and enforces the PAPR
alignment requirements at allocation time. We can not reduce the 1kB
allocation size however, due to existing KVM hypervisors.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin
2018-02-14 01:08:13 +10:00
committed by Michael Ellerman
parent d2e60075a3
commit 499dcd4137
6 changed files with 63 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/mm/numa.c
View File

@@ -1110,7 +1110,7 @@ static void setup_cpu_associativity_change_counters(void)
for_each_possible_cpu(cpu) {
int i;
u8 *counts = vphn_cpu_change_counts[cpu];
volatile u8 *hypervisor_counts = lppaca[cpu].vphn_assoc_counts;
volatile u8 *hypervisor_counts = lppaca_of(cpu).vphn_assoc_counts;
for (i = 0; i < distance_ref_points_depth; i++)
counts[i] = hypervisor_counts[i];
@@ -1136,7 +1136,7 @@ static int update_cpu_associativity_changes_mask(void)
for_each_possible_cpu(cpu) {
int i, changed = 0;
u8 *counts = vphn_cpu_change_counts[cpu];
volatile u8 *hypervisor_counts = lppaca[cpu].vphn_assoc_counts;
volatile u8 *hypervisor_counts = lppaca_of(cpu).vphn_assoc_counts;
for (i = 0; i < distance_ref_points_depth; i++) {
if (hypervisor_counts[i] != counts[i]) {