linux-kernel - [tip: timers/core] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Fri, 27 Oct 2023 18:23:11 -0000
From:   "tip-bot2 for Sunil V L" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Sunil V L <sunilvl@...tanamicro.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        Samuel Holland <samuel.holland@...ive.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: timers/core] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     d7f546c751e8c873302331af6a203ee61f894e9d
Gitweb:        https://git.kernel.org/tip/d7f546c751e8c873302331af6a203ee61f894e9d
Author:        Sunil V L <sunilvl@...tanamicro.com>
AuthorDate:    Wed, 27 Sep 2023 22:30:15 +05:30
Committer:     Daniel Lezcano <daniel.lezcano@...aro.org>
CommitterDate: Wed, 11 Oct 2023 12:06:41 +02:00

clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu

The timer capability to wakeup the cpu irrespective of its idle state is
provided by the flag in RHCT. Update the timer code to set this flag.

Signed-off-by: Sunil V L <sunilvl@...tanamicro.com>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
Reviewed-by: Andrew Jones <ajones@...tanamicro.com>
Reviewed-by: Samuel Holland <samuel.holland@...ive.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Link: https://lore.kernel.org/r/20230927170015.295232-5-sunilvl@ventanamicro.com
---
 drivers/clocksource/timer-riscv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index da3071b..5019865 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -212,6 +212,10 @@ TIMER_OF_DECLARE(riscv_timer, "riscv", riscv_timer_init_dt);
 #ifdef CONFIG_ACPI
 static int __init riscv_timer_acpi_init(struct acpi_table_header *table)
 {
+	struct acpi_table_rhct *rhct = (struct acpi_table_rhct *)table;
+
+	riscv_timer_cannot_wake_cpu = rhct->flags & ACPI_RHCT_TIMER_CANNOT_WAKEUP_CPU;
+
 	return riscv_timer_init_common();
 }