From: Sunil V L <sunilvl@ventanamicro.com>
To: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-acpi@vger.kernel.org
Cc: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Jones <ajones@ventanamicro.com>,
Conor Dooley <conor.dooley@microchip.com>,
Anup Patel <apatel@ventanamicro.com>,
Ard Biesheuvel <ardb@kernel.org>,
Alexandre Ghiti <alexghiti@rivosinc.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Atish Kumar Patra <atishp@rivosinc.com>,
Sunil V L <sunilvl@ventanamicro.com>
Subject: [PATCH v2 -next 4/4] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu
Date: Wed, 27 Sep 2023 22:30:15 +0530 [thread overview]
Message-ID: <20230927170015.295232-5-sunilvl@ventanamicro.com> (raw)
In-Reply-To: <20230927170015.295232-1-sunilvl@ventanamicro.com>
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@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 9c8f3e2decc2..06f5bad3c3e0 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -225,6 +225,10 @@ 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();
}
--
2.39.2
next prev parent reply other threads:[~2023-09-27 17:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-27 17:00 [PATCH v2 -next 0/4] RISC-V: ACPI improvements Sunil V L
2023-09-27 17:00 ` [PATCH v2 -next 1/4] RISC-V: ACPI: Enhance acpi_os_ioremap with MMIO remapping Sunil V L
2023-10-02 15:53 ` Conor Dooley
2023-10-03 18:53 ` Alexandre Ghiti
2023-10-04 10:33 ` Sunil V L
2023-09-27 17:00 ` [PATCH v2 -next 2/4] RISC-V: ACPI: RHCT: Add function to get CBO block sizes Sunil V L
2023-09-27 17:00 ` [PATCH v2 -next 3/4] RISC-V: cacheflush: Initialize CBO variables on ACPI systems Sunil V L
2023-10-02 15:50 ` Conor Dooley
2023-10-03 19:50 ` Samuel Holland
2023-10-04 4:22 ` Sunil V L
2023-10-04 8:33 ` Andrew Jones
2023-10-04 10:13 ` Sunil V L
2023-09-27 17:00 ` Sunil V L [this message]
2023-09-27 20:15 ` [PATCH v2 -next 4/4] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu Samuel Holland
2023-10-02 15:46 ` Conor Dooley
2023-10-04 8:38 ` Andrew Jones
2023-10-11 9:14 ` Daniel Lezcano
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