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authorTobias Waldekranz <tobias@waldekranz.com>2022-01-12 12:24:59 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2022-01-31 03:45:24 +0100
commitf529edd1b69ddf832c3257dcd34e15100038d6b7 (patch)
treeaf99e3fa538fc4ff70bbdc1f3ef930395b86d44b /arch/powerpc/platforms/85xx
parentpowerpc: add link stack flush mitigation status in debugfs. (diff)
downloadlinux-f529edd1b69ddf832c3257dcd34e15100038d6b7.tar.xz
linux-f529edd1b69ddf832c3257dcd34e15100038d6b7.zip
powerpc/e500/qemu-e500: allow core to idle without waiting
This means an idle guest won't needlessly consume an entire core on the host, waiting for work to show up. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Signed-off-by: Joachim Wiberg <troglobit@gmail.com> Acked-by: Scott Wood <oss@buserror.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220112112459.1033754-1-troglobit@gmail.com
Diffstat (limited to 'arch/powerpc/platforms/85xx')
-rw-r--r--arch/powerpc/platforms/85xx/qemu_e500.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c
index a4127b0b161f..4c4d577effd9 100644
--- a/arch/powerpc/platforms/85xx/qemu_e500.c
+++ b/arch/powerpc/platforms/85xx/qemu_e500.c
@@ -67,4 +67,9 @@ define_machine(qemu_e500) {
.get_irq = mpic_get_coreint_irq,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
+#ifdef CONFIG_PPC64
+ .power_save = book3e_idle,
+#else
+ .power_save = e500_idle,
+#endif
};