From: Harro Haan <hrhaan@gmail.com>
To: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>,
linaro-kernel@lists.linaro.org,
Catalin Marinas <catalin.marinas@arm.com>,
patches@linaro.org, kgdb-bugreport@lists.sourceforge.net,
Linus Walleij <linus.walleij@linaro.org>,
Nicolas Pitre <nico@linaro.org>,
linux-kernel@vger.kernel.org,
Frederic Weisbecker <fweisbec@gmail.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>,
Colin Cross <ccross@android.com>,
kernel-team@android.com, Dave Martin <Dave.Martin@arm.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v8 0/4] arm: KGDB NMI/FIQ support
Date: Tue, 15 Jul 2014 17:59:31 +0200 [thread overview]
Message-ID: <CAB5oZtDy=TDz12_6ua_M3g=bQ+zB6cJTH3bUT9oA8snLDRBMTw@mail.gmail.com> (raw)
In-Reply-To: <53C54042.2030507@linaro.org>
On 15 July 2014 16:52, Daniel Thompson <daniel.thompson@linaro.org> wrote:
> On 15/07/14 14:04, Harro Haan wrote:
>>> Makes sense.
>>>
>>> Avoiding this problem on GICv2 is easy (thanks to the aliased intack
>>> register) but on iMX.6 we have only a GICv1.
>>>
>>>
>>>> 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)
>>
>> Thanks Daniel, I have tested it, see the comments below.
>>
>>>
>>> diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
>>> index 73ae896..309bf2c 100644
>>> --- a/drivers/irqchip/irq-gic.c
>>> +++ b/drivers/irqchip/irq-gic.c
>>> @@ -303,6 +303,28 @@ static int gic_set_wake(struct irq_data *d,
>>> unsigned int on)
>>> #define gic_set_wake NULL
>>> #endif
>>>
>>> +/* Check for group 0 interrupt spuriously acked as a normal IRQ. This
>>> + * workaround will only work for level triggered interrupts (and in
>>> + * its current form is actively harmful on systems that don't support
>>> + * FIQ).
>>> + */
>>> +static u32 gic_handle_spurious_group_0(struct gic_chip_data *gic, u32
>>> irqstat)
>>> +{
>>> + u32 irqnr = irqstat & GICC_IAR_INT_ID_MASK;
>>> +
>>> + if (!gic_data_fiq_enable(gic) || irqnr >= 1021)
>>> + return irqnr;
>>> +
>>> + if (readl_relaxed(gic_data_dist_base(gic) + GIC_DIST_IGROUP +
>>> + (irqnr / 32 * 4)) &
>>> + BIT(irqnr % 32))
>>> + return irqnr;
>>> +
>>> + /* this interrupt was spurious (needs to be handled as FIQ) */
>>> + writel_relaxed(irqstat, gic_data_cpu_base(gic) + GIC_CPU_EOI);
>>
>> This will NOT work, because of the note I mentioned above:
>> "The FIQ exception will not occur anymore after gic_handle_irq
>> read/acknowledges the FIQ by reading the GIC_CPU_INTACK register"
>> So with this code you will say End Of Interrupt at the GIC level,
>> without actually handling the interrupt, so you are missing an
>> interrupt.
>> I did the following test to confirm the missing interrupt:
>> I have changed the periodic timer interrupt by an one-shot timer
>> interrupt. The one-shot timer interrupt is programmed by the FIQ
>> handler for the next FIQ interrupt. As expected: When the problem
>> occurs, no more FIQ interrupts are generated.
>
> Can you confirm whether your timer interrupts are configured level or
> edge triggered? Or whether EOIing the GIC causes them to be cleared by
> some other means.
>From page 48 of DDI0407I_cortex_a9_mpcore_r4p1_trm.pdf:
Watchdog timers, PPI(3)
Each Cortex-A9 processor has its own watchdog timers that can generate
interrupts, using ID30.
>From page 56:
PPI[0], [2],and[3]:b11
interrupt is rising-edge sensitive.
>
> A level triggered interrupt that hasn't been serviced should return the
> pending state (shouldn't it?).
>
>
>>> + return 1023;
>>> +}
>>> +
>>> static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
>>> {
>>> u32 irqstat, irqnr;
>>> @@ -310,8 +332,10 @@ static void __exception_irq_entry
>>> gic_handle_irq(struct pt_regs *regs)
>>> void __iomem *cpu_base = gic_data_cpu_base(gic);
>>>
>>> do {
>>> + local_fiq_disable();
>>
>> It is a bit weird to disable the "Non-Maskable Interrupt" at every
>> interrupt, because of a problem that occurs once every few thousand
>> interrupts
>
> Given that simply reading from GIC_CPU_INTACK has significantly
> interferes with FIQ reception means that I'm not too worried about this.
>
> Note also that leaving the FIQ unmasked increases worst case latency
> here because once we get a group 0 interrupt back from intack then
> spurious entry to the FIQ handler (which would see an ACK of 1023) just
> wastes cycles.
>
>
>>> irqstat = readl_relaxed(cpu_base + GIC_CPU_INTACK);
>>> - irqnr = irqstat & GICC_IAR_INT_ID_MASK;
>>> + irqnr = gic_handle_spurious_group_0(gic, irqstat);
>>> + local_fiq_enable();
>>>
>>> if (likely(irqnr > 15 && irqnr < 1021)) {
>>> irqnr = irq_find_mapping(gic->domain, irqnr);
>>
>>
>> The following type of changes could fix the problem for me:
>>
>> @@ -290,19 +290,66 @@ static int gic_set_wake(struct irq_data *d,
>> unsigned int on)
>>
>> #else
>> #define gic_set_wake NULL
>> #endif
>>
>> +extern void (*fiq_handler)(void);
>> +
>> +/* Check for group 0 interrupt spuriously acked as a normal IRQ. This
>> + * workaround will only work for level triggered interrupts (and in
>> + * its current form is actively harmful on systems that don't support
>> + * FIQ).
>> + */
>> +static u32 gic_handle_spurious_group_0(struct gic_chip_data *gic, u32 irqstat)
>> +{
>> + u32 irqnr = irqstat & ~0x1c00;
>> +
>> + if (!gic_data_fiq_enable(gic) || irqnr >= 1021)
>> + return irqnr;
>> +
>> + if (readl_relaxed(gic_data_dist_base(gic) + GIC_DIST_IGROUP +
>> + (irqnr / 32 * 4)) & BIT(irqnr % 32))
>> + return irqnr;
>> +
>> + /*
>> + * The FIQ should be disabled before the next FIQ interrupt occurs,
>> + * so this only works when the next FIQ interrupt is not "too fast"
>> + * after the previous one.
>> + */
>> + local_fiq_disable();
>> +
>> + /*
>> + * Notes:
>> + * - The FIQ exception will not occur anymore for this current
>> + * interrupt, because gic_handle_irq has already read/acknowledged
>> + * the GIC_CPU_INTACK register. So handle the FIQ here.
>> + * - The fiq_handler below should not call ack_fiq and eoi_fiq,
>> + * because rereading the GIC_CPU_INTACK register returns spurious
>> + * interrupt ID 0x3FF. So probably you will have to add sometime like
>> + * the following to fiq_handler:
>> + * u32 cpsr, irqstat;
>> + * __asm__("mrs %0, cpsr" : "=r" (cpsr));
>> + * if ((cpsr & MODE_MASK) == FIQ_MODE)
>> + * irqstat = ack_fiq();
>> + */
>> + (*fiq_handler)();
>
> Any portable approach would have to switch to FIQ mode to run the
> handler in order to provide the proper register banks for FIQ handlers
> written in assembler.
>
> If we can't get level triggering to work then we have to:
>
> 1. Write code to jump correctly into FIQ mode.
>
> 2. Modify the gic's ack_fiq() callback to automatically avoid reading
> intack when the workaround is deployed.
>
> The above is why I wanted to see if we can make do with level triggering
> (and automatic re-triggering for interrupts such as SGIs that are
> cleared by EOI).
But the re-triggering introduces extra latencies and a lot of use
cases of FIQ's try to avoid that.
next prev parent reply other threads:[~2014-07-15 15:59 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 [this message]
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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAB5oZtDy=TDz12_6ua_M3g=bQ+zB6cJTH3bUT9oA8snLDRBMTw@mail.gmail.com' \
--to=hrhaan@gmail.com \
--cc=Dave.Martin@arm.com \
--cc=anton.vorontsov@linaro.org \
--cc=ben.dooks@codethink.co.uk \
--cc=catalin.marinas@arm.com \
--cc=ccross@android.com \
--cc=daniel.thompson@linaro.org \
--cc=festevam@gmail.com \
--cc=fweisbec@gmail.com \
--cc=john.stultz@linaro.org \
--cc=kernel-team@android.com \
--cc=kgdb-bugreport@lists.sourceforge.net \
--cc=linaro-kernel@lists.linaro.org \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=nico@linaro.org \
--cc=patches@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).