[v8,25/26] arm64: kernel: Respect the hierarchical CPU topology in DT for PSCI

Message ID 20180620172226.15012-26-ulf.hansson@linaro.org
State New
Headers show
Series
  • PM / Domains: Support hierarchical CPU arrangement (PSCI/ARM)
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Commit Message

Ulf Hansson June 20, 2018, 5:22 p.m.
To let the PSCI driver to parse the CPU topology in DT, as to create CPU PM
domains in case the hierarchical layout is used, let's call
psci_dt_topology_init() from the existing topology_init() subsys_initcall.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Lina Iyer <ilina@codeaurora.org>
Co-developed-by: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

---
 arch/arm64/kernel/setup.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.17.1

Patch

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 30ad2f085d1f..574a5045f2f0 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -331,6 +331,9 @@  static int __init topology_init(void)
 {
 	int i;
 
+	if (acpi_disabled)
+		psci_dt_topology_init();
+
 	for_each_online_node(i)
 		register_one_node(i);