From: Marek Vasut <marex@denx.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Daniel Thompson <daniel.thompson@linaro.org>,
Harro Haan <hrhaan@gmail.com>,
linaro-kernel@lists.linaro.org,
Russell King <linux@arm.linux.org.uk>,
patches@linaro.org, kgdb-bugreport@lists.sourceforge.net,
Linus Walleij <linus.walleij@linaro.org>,
Nicolas Pitre <nico@linaro.org>,
linux-kernel@vger.kernel.org, Colin Cross <ccross@android.com>,
Anton Vorontsov <anton.vorontsov@linaro.org>,
Ben Dooks <ben.dooks@codethink.co.uk>,
John Stultz <john.stultz@linaro.org>,
Fabio Estevam <festevam@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
kernel-team@android.com, Frederic Weisbecker <fweisbec@gmail.com>,
Dave Martin <Dave.Martin@arm.com>, Detlev Zundel <dzu@denx.de>
Subject: Re: [PATCH v8 0/4] arm: KGDB NMI/FIQ support
Date: Tue, 15 Jul 2014 20:45:06 +0200 [thread overview]
Message-ID: <201407152045.06517.marex@denx.de> (raw)
In-Reply-To: <53C4F745.3070701@linaro.org>
On Tuesday, July 15, 2014 at 11:41:25 AM, Daniel Thompson wrote:
> On 14/07/14 14:51, Harro Haan wrote:
> > On 10 July 2014 10:03, Daniel Thompson <daniel.thompson@linaro.org> wrote:
> >> This patchset makes it possible to use kgdb's NMI infrastructure on ARM
> >> platforms.
> >>
> >> The patches have been previously circulated as part of a large patchset
> >> mixing together ARM architecture code and driver changes
> >> (http://thread.gmane.org/gmane.linux.ports.arm.kernel/333901 ). This
> >> patchset is dramatically cut down to include only the arch/arm code. The
> >> driver code (irqchip and tty/serial) will follow when/if the arch code
> >> is accepted.
> >>
> >> The first two patches modify the FIQ infrastructure to allow interrupt
> >> controller drivers to register callbacks (the fiq_chip structure) to
> >> manage FIQ routings and to ACK and EOI the FIQ. This makes it possible
> >> to use FIQ in multi-platform kernels and with recent ARM interrupt
> >> controllers.
> >
> > Daniel,
> >
> > Thanks for the patches. I have tested the fiq and irq-gic patches on
> > an i.MX6 (SabreSD board) for a different purpose:
> > A FIQ timer interrupt at 1 kHz. The TWD watchdog block is used in
> > timer mode for this (interrupt ID 30). The GIC affinity is set to CPU
> > core 0 only for this interrupt ID.
> >
> > I was surprised by the following behavior:
> > $ cat /proc/interrupts
> >
> > CPU0 CPU1 CPU2 CPU3
> >
> > 29: 5459 3381 3175 3029 GIC 29 twd
> > 30: 11 0 0 0 GIC 30 fake-fiq
> >
> > Once every few seconds is interrupt ID 30 handled by the regular GIC
> > handler instead of the FIQ exception path (which causes for example a
> > bit more latencies). The other thousands of FIQ's are handled by the
> > FIQ exception path. The problem is also confirmed by the following
> > stackframe of the Lauterbach tooling:
> > fake_fiq_handler(irq = 30, ...)
> > handle_percpu_devid_irq(irq = 30, ...)
> > generic_handle_irq(irq = 30)
> > handle_IRQ(irq = 30, ...)
> > gic_handle_irq
> > __irq_svc
> > -->exception
> >
> > Notes:
> >
> > - The problem will occur more often by executing the following command:
> > $ while true; do hackbench 20; done &
> >
> > - Reading the GIC_CPU_INTACK register returns the interrupt ID of the
> > highest priority pending interrupt.
> > - The GIC_CPU_INTACK register (used by fiq_ack) will return spurious
> > interrupt ID 0x3FF when read in fake_fiq_handler, because
> > GIC_CPU_INTACK is already read by gic_handle_irq.
> > - The FIQ exception will not occur anymore after gic_handle_irq
> > read/acknowledges the FIQ by reading the GIC_CPU_INTACK register
> >
> > From the behavior above I conclude that the GIC_CPU_INTACK register is
> > first updated before the FIQ exception is generated, so there is a
> > small period of time that gic_handle_irq can read/acknowledge the FIQ.
>
> Makes sense.
>
> Avoiding this problem on GICv2 is easy (thanks to the aliased intack
> register) but on iMX.6 we have only a GICv1.
Yep.
> > I can reduce the number of occurrences (not prevent it) by adding the
> > following hack to irq-gic.c
> > @@ -297,10 +309,12 @@ static asmlinkage void __exception_irq_entry
> > gic_handle_irq(struct pt_regs *regs
> >
> > u32 irqstat, irqnr;
> > struct gic_chip_data *gic = &gic_data[0];
> > void __iomem *cpu_base = gic_data_cpu_base(gic);
> >
> > do {
> >
> > + while(readl_relaxed(gic_data_dist_base(gic) + GIC_DIST_PENDING_SET)
> > & (1 << 30))
> > + printk(KERN_ERR "TEMP: gic_handle_irq: wait for FIQ exception\n");
> >
> > irqstat = readl_relaxed(cpu_base + GIC_CPU_INTACK);
> > irqnr = irqstat & ~0x1c00;
>
> I've made a more complete attempt to fix this. Could you test the
> following? (and be prepared to fuzz the line numbers)
There's also another workaround, look at [1], but it's really a perverse hack
thus far (blush). What I did there is I got hinted that an L1 page table can
have this NS bit set. If this bit is set for a mapping, all accesses to memory
area via that mapping will be non-secure. And then, in turn, by doing a non-
secure read of the INTACK register, it will not ever happen that the FIQ number
will pop up in the INTACK. I only do a non-secure read of the INTACK register,
all other registers of the GICv1 are read via regular secure-mode accesses.
[1] http://git.denx.de/?p=linux-denx/linux-denx-
marex.git;a=shortlog;h=refs/heads/topic/socfpga/fiq-2014-07-10_01
next prev parent reply other threads:[~2014-07-15 18:45 UTC|newest]
Thread overview: 194+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1403174303-25456-1-git-send-email-daniel.thompson@linaro.org>
2014-06-24 15:18 ` [PATCH v6 0/4] arm: KGDB NMI/FIQ support Daniel Thompson
2014-06-24 15:18 ` [PATCH v6 1/4] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-06-24 15:44 ` Nicolas Pitre
2014-06-24 15:58 ` Daniel Thompson
2014-06-24 15:18 ` [PATCH v6 2/4] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-06-24 15:46 ` Nicolas Pitre
2014-06-24 15:18 ` [PATCH v6 3/4] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-06-24 15:53 ` Nicolas Pitre
2014-06-24 15:18 ` [PATCH v6 4/4] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-06-24 16:08 ` Russell King - ARM Linux
2014-06-26 9:54 ` Daniel Thompson
2014-06-30 13:54 ` Daniel Thompson
2014-06-24 16:22 ` Nicolas Pitre
2014-06-26 12:48 ` Daniel Thompson
2014-06-30 8:53 ` [PATCH v7 0/4] arm: KGDB NMI/FIQ support Daniel Thompson
2014-06-30 8:53 ` [PATCH v7 1/4] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-06-30 8:53 ` [PATCH v7 2/4] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-06-30 8:53 ` [PATCH v7 3/4] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-06-30 8:53 ` [PATCH v7 4/4] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-07-10 8:03 ` [PATCH v8 0/4] arm: KGDB NMI/FIQ support Daniel Thompson
2014-07-10 8:03 ` [PATCH v8 1/4] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-07-10 8:03 ` [PATCH v8 2/4] arm: fiq: Allow ACK and EOI to be passed to the intc Daniel Thompson
2014-07-10 8:03 ` [PATCH v8 3/4] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-07-10 8:03 ` [PATCH v8 4/4] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-08-13 21:45 ` Russell King - ARM Linux
2014-08-14 10:48 ` Daniel Thompson
2014-08-14 11:15 ` [RFC PATCH 0/3] arm: FIQ IPI support Daniel Thompson
2014-08-14 11:15 ` [RFC PATCH 1/3] arm: smp: Introduce a special IPI signalled using FIQ Daniel Thompson
2014-08-14 11:15 ` [RFC PATCH 2/3] arm: kgdb: Add support for IPI FIQ roundup Daniel Thompson
2014-08-14 11:15 ` [RFC PATCH 3/3] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-08-14 12:36 ` [PATCH v8 4/4] ARM: Add KGDB/KDB FIQ debugger generic code Russell King - ARM Linux
2014-08-14 15:02 ` Daniel Thompson
2014-07-14 13:51 ` [PATCH v8 0/4] arm: KGDB NMI/FIQ support Harro Haan
2014-07-15 9:41 ` Daniel Thompson
2014-07-15 13:04 ` Harro Haan
2014-07-15 14:52 ` Daniel Thompson
2014-07-15 15:59 ` Harro Haan
2014-07-15 17:08 ` Daniel Thompson
2014-07-16 17:15 ` Harro Haan
2014-07-17 9:01 ` Daniel Thompson
2014-07-15 18:45 ` Marek Vasut [this message]
2014-07-16 12:54 ` Daniel Thompson
2014-07-16 17:21 ` Harro Haan
2014-07-17 9:20 ` Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 00/16] " Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 01/16] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 02/16] arm: fiq: Allow ACK and EOI to be passed to the intc Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 03/16] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 04/16] arm: smp: Introduce a special IPI signalled using FIQ Daniel Thompson
2014-08-18 13:40 ` [PATCH v9 05/16] arm: KGDB/KDB FIQ support Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 00/19] arm: KGDB NMI/FIQ support Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 01/19] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 02/19] arm: fiq: Allow ACK and EOI to be passed to the intc Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 03/19] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-08-19 17:37 ` Russell King - ARM Linux
2014-08-19 18:12 ` Daniel Thompson
2014-08-28 15:01 ` Russell King - ARM Linux
2014-08-28 15:43 ` Paul E. McKenney
2014-08-28 15:54 ` Daniel Thompson
2014-08-28 16:15 ` Paul E. McKenney
2014-09-02 11:03 ` Daniel Thompson
2014-09-02 11:36 ` Russell King - ARM Linux
2014-09-02 11:49 ` Daniel Thompson
2014-09-02 14:23 ` Paul E. McKenney
2014-09-02 16:42 ` Russell King - ARM Linux
2014-09-03 10:21 ` Daniel Thompson
2014-09-03 19:34 ` Russell King - ARM Linux
2014-09-04 9:09 ` Daniel Thompson
2014-09-04 9:45 ` Russell King - ARM Linux
2014-09-04 10:04 ` Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 04/19] arm: smp: Introduce a special IPI signalled using FIQ Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 05/19] arm: KGDB/KDB FIQ support Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 06/19] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 07/19] irqchip: gic: Add support for FIQ management Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 08/19] irqchip: gic: Remove spin locks from eoi_irq Daniel Thompson
2014-08-19 16:45 ` [PATCH v10 09/19] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 10/19] irqchip: gic: Group 0 workaround Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 11/19] irqchip: vic: Add support for FIQ management Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 12/19] serial: kgdb_nmi: No CON_ENABLED by default Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 13/19] serial: amba-pl011: Use container_of() to get uart_amba_port Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 14/19] serial: amba-pl011: Move pl011_hwinit() Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 15/19] serial: amba-pl011: Pass FIQ information to KGDB Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 16/19] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 17/19] serial: asc: Adopt readl_/writel_relaxed() Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 18/19] serial: imx: clean up imx_poll_get_char() Daniel Thompson
2014-08-19 16:46 ` [PATCH v10 19/19] serial: imx: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 00/19] arm: KGDB NMI/FIQ support Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 01/19] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-09-02 18:51 ` Russell King - ARM Linux
2014-09-03 0:03 ` Thomas Gleixner
2014-09-03 8:27 ` Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 02/19] arm: fiq: Allow ACK and EOI to be passed to the intc Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 03/19] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 04/19] arm: smp: Introduce a special IPI signalled using FIQ Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 05/19] arm: KGDB/KDB FIQ support Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 06/19] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-09-02 19:33 ` Russell King - ARM Linux
2014-09-02 21:36 ` Catalin Marinas
2014-09-03 9:44 ` Daniel Thompson
2014-09-03 9:28 ` Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 07/19] irqchip: gic: Add support for FIQ management Daniel Thompson
2014-09-02 19:36 ` Russell King - ARM Linux
2014-09-02 13:00 ` [PATCH v11 08/19] irqchip: gic: Remove spin locks from eoi_irq Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 09/19] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 10/19] irqchip: gic: Group 0 workaround Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 11/19] irqchip: vic: Add support for FIQ management Daniel Thompson
2014-09-02 19:40 ` Russell King - ARM Linux
2014-09-02 13:00 ` [PATCH v11 12/19] serial: kgdb_nmi: No CON_ENABLED by default Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 13/19] serial: amba-pl011: Use container_of() to get uart_amba_port Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 14/19] serial: amba-pl011: Move pl011_hwinit() Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 15/19] serial: amba-pl011: Pass FIQ information to KGDB Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 16/19] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 17/19] serial: asc: Adopt readl_/writel_relaxed() Daniel Thompson
2014-09-02 13:42 ` [STLinux Kernel] " Peter Griffin
2014-09-02 13:55 ` Maxime Coquelin
2014-09-02 13:00 ` [PATCH v11 18/19] serial: imx: clean up imx_poll_get_char() Daniel Thompson
2014-09-02 13:00 ` [PATCH v11 19/19] serial: imx: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-09-02 23:02 ` [PATCH v11 00/19] arm: KGDB NMI/FIQ support Thomas Gleixner
2014-09-03 9:02 ` Daniel Thompson
2014-09-03 10:06 ` Thomas Gleixner
2014-09-03 10:30 ` Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 0/6] arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 1/6] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-04 18:57 ` Nicolas Pitre
2014-09-05 9:03 ` Daniel Thompson
2014-09-05 18:04 ` Nicolas Pitre
2014-09-08 13:22 ` Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 2/6] arm: smp: Introduce a non-maskable IPI Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 3/6] arm64: Introduce dummy version of asm/fiq.h Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 4/6] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 5/6] irqchip: gic: Group 0 workaround Daniel Thompson
2014-09-04 16:03 ` [PATCH v1 6/6] arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 0/5] " Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 1/5] ARM: remove unused do_unexp_fiq() function Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 2/5] ARM: add basic support for on-demand backtrace of other CPUs Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 3/5] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 4/5] arm64: Introduce dummy version of asm/fiq.h Daniel Thompson
2014-09-05 16:50 ` Catalin Marinas
2014-09-08 11:03 ` Daniel Thompson
2014-09-05 15:33 ` [PATCH v2 5/5] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 0/5] arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 1/5] ARM: remove unused do_unexp_fiq() function Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 2/5] ARM: add basic support for on-demand backtrace of other CPUs Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 3/5] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-08 15:49 ` Nicolas Pitre
2014-09-08 15:57 ` Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 4/5] arm64: Introduce dummy version of asm/fiq.h Daniel Thompson
2014-09-08 15:28 ` [PATCH v3 5/5] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-08 16:23 ` Russell King - ARM Linux
2014-09-09 8:24 ` Daniel Thompson
2014-09-14 11:53 ` Daniel Thompson
2014-09-08 16:24 ` [PATCH v3 0/5] arm: Implement arch_trigger_all_cpu_backtrace Russell King - ARM Linux
2014-09-09 8:26 ` Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 0/6] " Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 1/6] ARM: remove unused do_unexp_fiq() function Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 2/6] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 3/6] arm64: Introduce dummy version of asm/fiq.h Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 4/6] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 5/6] ARM: add basic support for on-demand backtrace of other CPUs Daniel Thompson
2014-09-09 14:15 ` [PATCH v4 6/6] arm: smp: Handle ipi_cpu_backtrace() using FIQ (if available) Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 0/6] arm: Implement arch_trigger_all_cpu_backtrace Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 1/6] ARM: remove unused do_unexp_fiq() function Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 2/6] arm: fiq: Replace default FIQ handler Daniel Thompson
2014-09-12 17:03 ` Russell King - ARM Linux
2014-09-12 17:07 ` Russell King - ARM Linux
2014-09-13 12:01 ` Daniel Thompson
2014-09-12 17:08 ` Russell King - ARM Linux
2014-09-12 17:14 ` Russell King - ARM Linux
2014-09-12 17:19 ` Russell King - ARM Linux
2014-09-12 17:23 ` Russell King - ARM Linux
2014-09-14 6:36 ` Daniel Thompson
2014-09-14 8:45 ` Russell King - ARM Linux
2014-09-14 11:27 ` Daniel Thompson
2014-09-13 12:03 ` Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 3/6] arm64: Introduce dummy version of asm/fiq.h Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 4/6] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 5/6] ARM: add basic support for on-demand backtrace of other CPUs Daniel Thompson
2014-09-11 11:31 ` [PATCH 3.17-rc4 v5 6/6] arm: smp: Handle ipi_cpu_backtrace() using FIQ (if available) Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 06/16] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 07/16] irqchip: gic: Add support for FIQ management Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 08/16] irqchip: gic: Remove spin locks from eoi_irq Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 09/16] irqchip: gic: Add support for IPI FIQ Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 10/16] irqchip: gic: Group 0 workaround Daniel Thompson
2014-08-18 14:12 ` [PATCH v9 11/16] irqchip: vic: Add support for FIQ management Daniel Thompson
2014-08-18 14:28 ` [PATCH v9 12/16] serial: amba-pl011: Pass FIQ information to KGDB Daniel Thompson
2014-08-18 18:30 ` Peter Hurley
2014-08-19 9:08 ` Daniel Thompson
2014-08-19 11:58 ` Peter Hurley
2014-08-19 12:51 ` Daniel Thompson
2014-08-18 14:28 ` [PATCH v9 13/16] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-08-18 14:28 ` [PATCH v9 14/16] serial: asc: Adopt readl_/writel_relaxed() Daniel Thompson
2014-08-18 14:28 ` [PATCH v9 15/16] serial: imx: clean up imx_poll_get_char() Daniel Thompson
2014-08-18 14:28 ` [PATCH v9 16/16] serial: imx: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-08-18 17:32 ` Dirk Behme
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