diff mbox series

[2/3] Revert "arm64: smp: avoid NMI IPIs with broken MediaTek FW"

Message ID 20231006151547.2.I2c5fa192e767eb3ee233bc28eb60e2f8656c29a6@changeid
State New
Headers
Series [1/3] arm64: Disable GiC priorities on Mediatek devices w/ firmware issues |

Commit Message

Doug Anderson Oct. 6, 2023, 10:15 p.m. UTC 
  This reverts commit a07a594152173a3dd3bdd12fc7d73dbba54cdbca.

This is no longer needed after the patch ("arm64: Disable GiC
priorities on Mediatek devices w/ firmware issues").

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 arch/arm64/kernel/smp.c      | 5 +----
 drivers/irqchip/irq-gic-v3.c | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

Comments

Mark Rutland Oct. 18, 2023, 11:03 a.m. UTC | #1 
On Fri, Oct 06, 2023 at 03:15:52PM -0700, Douglas Anderson wrote:
> This reverts commit a07a594152173a3dd3bdd12fc7d73dbba54cdbca.
> 
> This is no longer needed after the patch ("arm64: Disable GiC
> priorities on Mediatek devices w/ firmware issues").

That first patch has a typo in the title: s/GiC/GIC/

This patch makes sense to me, so:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
> 
>  arch/arm64/kernel/smp.c      | 5 +----
>  drivers/irqchip/irq-gic-v3.c | 2 +-
>  2 files changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
> index 16ead57a583d..f36a97a54d2b 100644
> --- a/arch/arm64/kernel/smp.c
> +++ b/arch/arm64/kernel/smp.c
> @@ -964,10 +964,7 @@ static void smp_cross_call(const struct cpumask *target, unsigned int ipinr)
>  
>  static bool ipi_should_be_nmi(enum ipi_msg_type ipi)
>  {
> -	DECLARE_STATIC_KEY_FALSE(supports_pseudo_nmis);
> -
> -	if (!system_uses_irq_prio_masking() ||
> -	    !static_branch_likely(&supports_pseudo_nmis))
> +	if (!system_uses_irq_prio_masking())
>  		return false;
>  
>  	switch (ipi) {
> diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
> index 737da1b9aabf..787ccc880b22 100644
> --- a/drivers/irqchip/irq-gic-v3.c
> +++ b/drivers/irqchip/irq-gic-v3.c
> @@ -106,7 +106,7 @@ static DEFINE_STATIC_KEY_TRUE(supports_deactivate_key);
>   * - Figure 4-7 Secure read of the priority field for a Non-secure Group 1
>   *   interrupt.
>   */
> -DEFINE_STATIC_KEY_FALSE(supports_pseudo_nmis);
> +static DEFINE_STATIC_KEY_FALSE(supports_pseudo_nmis);
>  
>  DEFINE_STATIC_KEY_FALSE(gic_nonsecure_priorities);
>  EXPORT_SYMBOL(gic_nonsecure_priorities);
> -- 
> 2.42.0.609.gbb76f46606-goog
>
diff mbox series

Patch

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 16ead57a583d..f36a97a54d2b 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -964,10 +964,7 @@  static void smp_cross_call(const struct cpumask *target, unsigned int ipinr)
 
 static bool ipi_should_be_nmi(enum ipi_msg_type ipi)
 {
-	DECLARE_STATIC_KEY_FALSE(supports_pseudo_nmis);
-
-	if (!system_uses_irq_prio_masking() ||
-	    !static_branch_likely(&supports_pseudo_nmis))
+	if (!system_uses_irq_prio_masking())
 		return false;
 
 	switch (ipi) {
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 737da1b9aabf..787ccc880b22 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -106,7 +106,7 @@  static DEFINE_STATIC_KEY_TRUE(supports_deactivate_key);
  * - Figure 4-7 Secure read of the priority field for a Non-secure Group 1
  *   interrupt.
  */
-DEFINE_STATIC_KEY_FALSE(supports_pseudo_nmis);
+static DEFINE_STATIC_KEY_FALSE(supports_pseudo_nmis);
 
 DEFINE_STATIC_KEY_FALSE(gic_nonsecure_priorities);
 EXPORT_SYMBOL(gic_nonsecure_priorities);