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Wysocki" , Len Brown , Daniel Lezcano , Thomas Gleixner , Andrew Jones , Conor Dooley , Anup Patel , Ard Biesheuvel , Alexandre Ghiti , Andy Shevchenko , Atish Kumar Patra , Sunil V L Subject: [PATCH v2 -next 4/4] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu Date: Wed, 27 Sep 2023 22:30:15 +0530 Message-Id: <20230927170015.295232-5-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230927170015.295232-1-sunilvl@ventanamicro.com> References: <20230927170015.295232-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Wed, 27 Sep 2023 10:01:12 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1778212318342025248 X-GMAIL-MSGID: 1778212318342025248 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 Reviewed-by: Samuel Holland Reviewed-by: Conor Dooley Reviewed-by: Andrew Jones --- 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(); }