linux-kernel - [PATCH v10 25/27] arm64: kernel: Respect the hierarchical CPU topology in DT for PSCI

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Date:   Thu, 29 Nov 2018 18:46:58 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-pm@...r.kernel.org
Cc:     "Raju P . L . S . S . S . N" <rplsssn@...eaurora.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Kevin Hilman <khilman@...nel.org>,
        Lina Iyer <ilina@...eaurora.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Subject: [PATCH v10 25/27] arm64: kernel: Respect the hierarchical CPU topology in DT for PSCI

To let the PSCI driver parse for the hierarchical CPU topology in DT and
thus potentially initiate the corresponding PM domain data structures,
let's call psci_dt_topology_init() from the existing topology_init()
subsys_initcall.

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

Changes in v10:
	- None.

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

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index f4fc1e0544b7..4d59a72f8b0b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -364,6 +364,9 @@ static int __init topology_init(void)
 {
 	int i;
 
+	if (acpi_disabled)
+		psci_dt_topology_init();
+
 	for_each_online_node(i)
 		register_one_node(i);
 
-- 
2.17.1