From: Julien Thierry <julien.thierry@arm.com> To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, daniel.thompson@linaro.org, joel@joelfernandes.org, marc.zyngier@arm.com, christoffer.dall@arm.com, james.morse@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, mark.rutland@arm.com, Julien Thierry <julien.thierry@arm.com> Subject: [PATCH v7 17/25] arm64: gic-v3: Implement arch support for priority masking Date: Wed, 12 Dec 2018 16:47:17 +0000 [thread overview] Message-ID: <1544633245-6036-18-git-send-email-julien.thierry@arm.com> (raw) In-Reply-To: <1544633245-6036-1-git-send-email-julien.thierry@arm.com> Implement architecture specific primitive allowing the GICv3 driver to use priorities to mask interrupts. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Suggested-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm64/include/asm/arch_gicv3.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h index b5f8142..14b41dd 100644 --- a/arch/arm64/include/asm/arch_gicv3.h +++ b/arch/arm64/include/asm/arch_gicv3.h @@ -22,6 +22,7 @@ #ifndef __ASSEMBLY__ +#include <linux/irqchip/arm-gic-common.h> #include <linux/stringify.h> #include <asm/barrier.h> #include <asm/cacheflush.h> @@ -162,14 +163,13 @@ static inline bool gic_prio_masking_enabled(void) static inline void gic_pmr_mask_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + BUILD_BUG_ON(GICD_INT_DEF_PRI <= GIC_PRIO_IRQOFF); + gic_write_pmr(GIC_PRIO_IRQOFF); } static inline void gic_arch_enable_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + asm volatile ("msr daifclr, #2" : : : "memory"); } #endif /* __ASSEMBLY__ */ -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Julien Thierry <julien.thierry@arm.com> To: linux-arm-kernel@lists.infradead.org Cc: mark.rutland@arm.com, daniel.thompson@linaro.org, Julien Thierry <julien.thierry@arm.com>, marc.zyngier@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, christoffer.dall@arm.com, james.morse@arm.com, joel@joelfernandes.org Subject: [PATCH v7 17/25] arm64: gic-v3: Implement arch support for priority masking Date: Wed, 12 Dec 2018 16:47:17 +0000 [thread overview] Message-ID: <1544633245-6036-18-git-send-email-julien.thierry@arm.com> (raw) In-Reply-To: <1544633245-6036-1-git-send-email-julien.thierry@arm.com> Implement architecture specific primitive allowing the GICv3 driver to use priorities to mask interrupts. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Suggested-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm64/include/asm/arch_gicv3.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h index b5f8142..14b41dd 100644 --- a/arch/arm64/include/asm/arch_gicv3.h +++ b/arch/arm64/include/asm/arch_gicv3.h @@ -22,6 +22,7 @@ #ifndef __ASSEMBLY__ +#include <linux/irqchip/arm-gic-common.h> #include <linux/stringify.h> #include <asm/barrier.h> #include <asm/cacheflush.h> @@ -162,14 +163,13 @@ static inline bool gic_prio_masking_enabled(void) static inline void gic_pmr_mask_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + BUILD_BUG_ON(GICD_INT_DEF_PRI <= GIC_PRIO_IRQOFF); + gic_write_pmr(GIC_PRIO_IRQOFF); } static inline void gic_arch_enable_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + asm volatile ("msr daifclr, #2" : : : "memory"); } #endif /* __ASSEMBLY__ */ -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2018-12-12 16:49 UTC|newest] Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-12 16:47 [PATCH v7 00/25] arm64: provide pseudo NMI with GICv3 Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 01/25] arm64: Fix HCR.TGE status for NMI contexts Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 21:39 ` Sasha Levin 2018-12-12 21:39 ` Sasha Levin 2018-12-17 8:49 ` Julien Thierry 2018-12-17 8:49 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 02/25] arm64: Remove unused daif related functions/macros Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 03/25] arm64: cpufeature: Set SYSREG_GIC_CPUIF as a boot system feature Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 04/25] arm64: cpufeature: Add cpufeature for IRQ priority masking Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 05/25] arm/arm64: gic-v3: Add PMR and RPR accessors Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 06/25] irqchip/gic-v3: Switch to PMR masking before calling IRQ handler Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 07/25] arm64: ptrace: Provide definitions for PMR values Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 08/25] arm64: Make PMR part of task context Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 09/25] arm64: Unmask PMR before going idle Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 10/25] arm64: kvm: Unmask PMR before entering guest Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 11/25] arm64: irqflags: Use ICC_PMR_EL1 for interrupt masking Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 17:27 ` Ard Biesheuvel 2018-12-12 17:27 ` Ard Biesheuvel 2018-12-12 17:59 ` Julien Thierry 2018-12-12 17:59 ` Julien Thierry 2018-12-12 18:10 ` Ard Biesheuvel 2018-12-12 18:10 ` Ard Biesheuvel 2018-12-13 8:54 ` Julien Thierry 2018-12-13 8:54 ` Julien Thierry 2018-12-13 11:35 ` Ard Biesheuvel 2018-12-13 11:35 ` Ard Biesheuvel 2018-12-13 12:02 ` Julien Thierry 2018-12-13 12:02 ` Julien Thierry 2018-12-13 15:03 ` Julien Thierry 2018-12-13 15:03 ` Julien Thierry 2018-12-14 15:23 ` Julien Thierry 2018-12-14 15:23 ` Julien Thierry 2018-12-14 15:49 ` Ard Biesheuvel 2018-12-14 15:49 ` Ard Biesheuvel 2018-12-14 16:40 ` Julien Thierry 2018-12-14 16:40 ` Julien Thierry 2018-12-19 17:01 ` Julien Thierry 2018-12-19 17:01 ` Julien Thierry 2018-12-20 17:53 ` Ard Biesheuvel 2018-12-20 17:53 ` Ard Biesheuvel 2018-12-21 10:25 ` Julien Thierry 2018-12-21 10:25 ` Julien Thierry 2018-12-16 14:47 ` Jian-Lin Chen 2018-12-16 14:47 ` Jian-Lin Chen 2018-12-17 9:26 ` Julien Thierry 2018-12-17 9:26 ` Julien Thierry 2018-12-18 8:36 ` Jian-Lin Chen 2018-12-18 8:36 ` Jian-Lin Chen 2018-12-12 16:47 ` [PATCH v7 12/25] arm64: daifflags: Include PMR in daifflags restore operations Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 13/25] arm64: alternative: Allow alternative status checking per cpufeature Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 14/25] arm64: alternative: Apply alternatives early in boot process Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 15/25] irqchip/gic-v3: Factor group0 detection into functions Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 16/25] arm64: Switch to PMR masking when starting CPUs Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` Julien Thierry [this message] 2018-12-12 16:47 ` [PATCH v7 17/25] arm64: gic-v3: Implement arch support for priority masking Julien Thierry 2018-12-12 16:47 ` [PATCH v7 18/25] irqchip/gic-v3: Detect if GIC can support pseudo-NMIs Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 19/25] irqchip/gic-v3: Handle pseudo-NMIs Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 20/25] irqchip/gic: Add functions to access irq priorities Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 21/25] irqchip/gic-v3: Allow interrupts to be set as pseudo-NMI Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 22/25] arm64: Handle serror in NMI context Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 23/25] arm64: Skip preemption when exiting an NMI Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 24/25] arm64: Skip irqflags tracing for NMI in IRQs disabled context Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:47 ` [PATCH v7 25/25] arm64: Enable the support of pseudo-NMIs Julien Thierry 2018-12-12 16:47 ` Julien Thierry 2018-12-12 16:52 ` [PATCH v7 00/25] arm64: provide pseudo NMI with GICv3 Julien Thierry 2018-12-12 16:52 ` Julien Thierry
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