From: daniel.thompson@linaro.org (Daniel Thompson)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 0/4] arm: KGDB NMI/FIQ support
Date: Tue, 15 Jul 2014 10:41:25 +0100 [thread overview]
Message-ID: <53C4F745.3070701@linaro.org> (raw)
In-Reply-To: <CAB5oZtCk5NwBJF+dBESKGhYabti=EWWtF2jJYK7HdyNHM46nTw@mail.gmail.com>
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.
> 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)
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);
+ 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();
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);
next prev parent reply other threads:[~2014-07-15 9:41 UTC|newest]
Thread overview: 262+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 15:58 [RFC 0/8] kgdb: NMI/FIQ support for ARM Daniel Thompson
2014-05-14 15:58 ` [RFC 1/8] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-05-14 15:58 ` [RFC 2/8] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-05-14 15:58 ` [RFC 3/8] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-05-14 15:58 ` [RFC 4/8] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-05-14 15:58 ` [RFC 5/8] serial: amba-pl011: Pass on FIQ information to KGDB Daniel Thompson
2014-05-14 15:58 ` [RFC 6/8] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-05-14 15:58 ` [RFC 7/8] ARM: VIC: Add vic_set_fiq function to select if an interrupt should generate an IRQ or FIQ Daniel Thompson
2014-05-14 15:58 ` [RFC 8/8] arm: fiq: Hack FIQ routing backdoors into GIC and VIC Daniel Thompson
2014-05-23 13:57 ` [RFC v2 00/10] kgdb: NMI/FIQ support for ARM Daniel Thompson
2014-05-23 13:57 ` [RFC v2 01/10] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-05-23 14:59 ` Srinivas Kandagatla
2014-05-23 15:00 ` Russell King - ARM Linux
2014-05-28 15:47 ` Daniel Thompson
2014-05-23 13:57 ` [RFC v2 02/10] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-05-23 13:57 ` [RFC v2 03/10] irqchip: gic: Introduce shadow irqs for FIQ Daniel Thompson
2014-05-23 13:57 ` [RFC v2 04/10] ARM: vexpress: Extend UART with FIQ support Daniel Thompson
2014-05-23 15:04 ` Russell King - ARM Linux
2014-05-29 10:31 ` Daniel Thompson
2014-05-29 13:44 ` Rob Herring
2014-06-03 12:41 ` Daniel Thompson
2014-05-23 13:57 ` [RFC v2 05/10] ARM: STi: STiH41x: " Daniel Thompson
2014-05-23 13:57 ` [RFC v2 06/10] irqchip: vic: Introduce shadow irqs for FIQ Daniel Thompson
2014-05-23 13:57 ` [RFC v2 07/10] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-05-23 13:57 ` [RFC v2 08/10] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-05-23 13:57 ` [RFC v2 09/10] serial: amba-pl011: Pass on FIQ information to KGDB Daniel Thompson
2014-05-23 13:57 ` [RFC v2 10/10] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-05-23 14:50 ` Srinivas Kandagatla
2014-06-05 9:53 ` [RFC v3 0/9] kgdb: NMI/FIQ support for ARM Daniel Thompson
2014-06-05 9:53 ` [RFC v3 1/9] arm: fiq: arbitrary mappings from IRQ to FIQ virqs Daniel Thompson
2014-06-05 11:51 ` Russell King - ARM Linux
2014-06-05 13:08 ` Daniel Thompson
2014-06-12 8:37 ` Linus Walleij
2014-06-12 9:54 ` Daniel Thompson
2014-06-13 14:29 ` Rob Herring
2014-06-18 11:24 ` Daniel Thompson
2014-06-05 9:53 ` [RFC v3 2/9] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-06-05 9:53 ` [RFC v3 3/9] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-06-05 19:50 ` Nicolas Pitre
2014-06-05 9:53 ` [RFC v3 4/9] irqchip: gic: Introduce shadow irqs for FIQ Daniel Thompson
2014-06-06 7:46 ` Peter De Schrijver
2014-06-06 9:23 ` Daniel Thompson
2014-06-05 9:53 ` [RFC v3 5/9] irqchip: vic: " Daniel Thompson
2014-06-05 9:53 ` [RFC v3 6/9] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-06-05 9:53 ` [RFC v3 7/9] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-06-05 9:53 ` [RFC v3 8/9] serial: amba-pl011: Pass on FIQ information to KGDB Daniel Thompson
2014-06-05 9:53 ` [RFC v3 9/9] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 00/13] kgdb: NMI/FIQ support for ARM Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 01/13] arm: fiq: Add callbacks to manage FIQ routings Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 02/13] arm: fiq: Allow EOI to be communicated to the intc Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 03/13] irqchip: gic: Provide support for interrupt grouping Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 04/13] irqchip: gic: Add support for FIQ management Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 05/13] irqchip: gic: Remove spin locks from eoi_irq Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 06/13] irqchip: vic: Add support for FIQ management Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 07/13] ARM: Move some macros from entry-armv to entry-header Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 08/13] ARM: Add KGDB/KDB FIQ debugger generic code Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 09/13] serial: amba-pl011: Pass FIQ information to KGDB Daniel Thompson
2014-06-20 0:36 ` Greg Kroah-Hartman
2014-06-19 10:38 ` [PATCH v4 10/13] serial: asc: Add support for KGDB's FIQ/NMI mode Daniel Thompson
2014-06-20 0:36 ` Greg Kroah-Hartman
2014-06-19 10:38 ` [PATCH v4 11/13] serial: asc: Adopt readl_/writel_relaxed() Daniel Thompson
2014-06-19 11:29 ` Srinivas Kandagatla
2014-06-19 11:46 ` Daniel Thompson
2014-06-19 11:58 ` Maxime Coquelin
2014-06-19 12:01 ` Srinivas Kandagatla
2014-06-19 13:12 ` Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 12/13] serial: imx: clean up imx_poll_get_char() Daniel Thompson
2014-06-19 10:38 ` [PATCH v4 13/13] serial: imx: Add support for KGDB's FIQ/NMI mode Daniel Thompson
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 [this message]
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
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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