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Shanker Donthineni ebe2f87180 irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry 
The ACPI specification says OS shouldn't attempt to use GICC configuration
parameters if the flag ACPI_MADT_ENABLED is cleared. The ARM64-SMP code
skips the disabled GICC entries but not causing any issue. However the
current GICv3 driver probe bails out causing kernel panic() instead of
skipping the disabled GICC interfaces. This issue happens on systems
where redistributor regions are not in the always-on power domain and
one of GICC interface marked with ACPI_MADT_ENABLED=0.

This patch does the two things to fix the panic.
  - Don't return an error in gic_acpi_match_gicc() for disabled GICC entry.
  - No need to keep GICR region information for disabled GICC entry.

Observed kernel crash on QDF2400 platform GICC entry is disabled.
Kernel crash traces:
  Kernel panic - not syncing: No interrupt controller found.
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.5 #26
  [<ffff000008087770>] dump_backtrace+0x0/0x218
  [<ffff0000080879dc>] show_stack+0x14/0x20
  [<ffff00000883b078>] dump_stack+0x98/0xb8
  [<ffff0000080c5c14>] panic+0x118/0x26c
  [<ffff000008b62348>] init_IRQ+0x24/0x2c
  [<ffff000008b609fc>] start_kernel+0x230/0x394
  [<ffff000008b601e4>] __primary_switched+0x64/0x6c
  ---[ end Kernel panic - not syncing: No interrupt controller found.

Disabled GICC subtable example:
                   Subtable Type : 0B [Generic Interrupt Controller]
                          Length : 50
                        Reserved : 0000
            CPU Interface Number : 0000003D
                   Processor UID : 0000003D
           Flags (decoded below) : 00000000
               Processor Enabled : 0
 Performance Interrupt Trig Mode : 0
 Virtual GIC Interrupt Trig Mode : 0
        Parking Protocol Version : 00000000
           Performance Interrupt : 00000017
                  Parked Address : 0000000000000000
                    Base Address : 0000000000000000
        Virtual GIC Base Address : 0000000000000000
     Hypervisor GIC Base Address : 0000000000000000
           Virtual GIC Interrupt : 00000019
      Redistributor Base Address : 0000FFFF88F40000
                       ARM MPIDR : 000000000000000D
                Efficiency Class : 00
                        Reserved : 000000
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
 		2018-01-04 11:14:10 +00:00
..
Kconfig irqchip/irq-goldfish-pic: Add Goldfish PIC driver 2018-01-04 11:14:04 +00:00
Makefile irqchip/irq-goldfish-pic: Add Goldfish PIC driver 2018-01-04 11:14:04 +00:00
alphascale_asm9260-icoll.h irqchip/mxs: Add Alphascale ASM9260 support 2015-10-14 09:37:47 +02:00
exynos-combiner.c irqchip/exynos-combiner: Fix usage of __raw IO 2016-06-23 18:26:42 +00:00
irq-alpine-msi.c irqchip/irq-alpine-msi: Don't use <asm-generic/msi.h> 2016-05-11 10:12:25 +01:00
irq-armada-370-xp.c irqchip updates for 4.14 2017-08-31 20:12:51 +02:00
irq-aspeed-i2c-ic.c irqchip/aspeed-i2c-ic: Fix return value check in aspeed_i2c_ic_of_init() 2017-10-19 11:22:43 +01:00
irq-aspeed-vic.c irqchip/aspeed-vic: Add AST2500 compatible string 2017-06-22 14:13:39 +01:00
irq-ath79-cpu.c irqchip/ath79-cpu: Move the CPU IRQ driver from arch/mips/ath79/ 2016-02-17 13:47:19 +00:00
irq-ath79-misc.c irqchip/ath79-misc: Move the MISC driver from arch/mips/ath79/ 2016-02-17 13:44:31 +00:00
irq-atmel-aic-common.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic-common.h irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-atmel-aic5.c irqchip/atmel-aic: Remove root argument from ->fixup() prototype 2017-07-04 11:10:37 +01:00
irq-bcm2835.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-bcm2836.c irqchip/irq-bcm2836: Add support for DT interrupt polarity 2018-01-04 11:12:39 +00:00
irq-bcm6345-l1.c irqchip/bcm-6345-l1: Report that effective affinity is a single target 2017-08-18 10:54:41 +02:00
irq-bcm7038-l1.c irqchip/bcm-7038-l1: Report that effective affinity is a single target 2017-08-18 10:54:42 +02:00
irq-bcm7120-l2.c irqchip/irq-bcm7120-l2: Use correct I/O accessors for irq_fwd_mask 2017-08-31 15:32:18 +01:00
irq-brcmstb-l2.c irqchip/brcmstb-l2: Add support for the BCM7271 L2 controller 2017-10-19 10:56:36 +01:00
irq-clps711x.c irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip 2016-07-06 17:38:15 +02:00
irq-crossbar.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-digicolor.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-dw-apb-ictl.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-eznps.c irqchip/eznps: Drop pointless static qualifier in nps400_of_init() 2016-10-19 14:24:36 +02:00
irq-ftintc010.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-gic-common.c irqchip/gic: Make quirks matching conditional on init return value 2017-10-19 11:22:38 +01:00
irq-gic-common.h irqchip/gic: Make quirks matching conditional on init return value 2017-10-19 11:22:38 +01:00
irq-gic-pm.c irqchip/gic-pm: Update driver to use of_pm_clk_add_clk 2016-09-12 19:46:28 +01:00
irq-gic-realview.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-gic-v2m.c irqchip/MSI: Use irq_domain_update_bus_token instead of an open coded access 2017-06-22 18:29:17 +02:00
irq-gic-v3-its-pci-msi.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-gic-v3-its-platform-msi.c irqchip/gic-v3-its-platform-msi: Fix msi-parent parsing loop 2017-08-10 16:26:54 +01:00
irq-gic-v3-its.c genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
irq-gic-v3.c irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry 2018-01-04 11:14:10 +00:00
irq-gic-v4.c irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails 2017-11-10 09:50:36 +00:00
irq-gic.c First batch of KVM changes for 4.15 2017-11-16 13:00:24 -08:00
irq-goldfish-pic.c irqchip/irq-goldfish-pic: Add Goldfish PIC driver 2018-01-04 11:14:04 +00:00
irq-hip04.c irqchip/hip04: Report that effective affinity is a single target 2017-08-18 10:54:42 +02:00
irq-i8259.c irqchip/i8259: Constify irq_domain_ops 2017-06-22 14:12:49 +01:00
irq-imgpdc.c irqchip/imgpdc: Use resource_size function on resource object 2017-11-23 20:09:12 +01:00
irq-imx-gpcv2.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ingenic.c irqchip: Prepare for local stub header removal 2015-07-11 23:14:23 +02:00
irq-jcore-aic.c irqchip/jcore: Fix lost per-cpu interrupts 2016-10-14 14:26:55 +02:00
irq-keystone.c irqchip/keystone: Fix "scheduling while atomic" on rt 2016-12-31 18:41:45 +00:00
irq-lpc32xx.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ls-scfg-msi.c irqchip/ls-scfg-msi: Add LS1012a MSI support 2017-10-11 13:48:19 -05:00
irq-mbigen.c irqchip/irq-mbigen: Constify irq_domain_ops 2017-06-22 14:13:00 +01:00
irq-meson-gpio.c irqchip/meson-gpio: add support for Meson8 SoCs 2017-11-02 15:55:45 +00:00
irq-metag-ext.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-metag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-mips-cpu.c MIPS: Unify checks for sibling CPUs 2017-08-30 00:57:27 +02:00
irq-mips-gic.c irqchip: mips-gic: Print warning if inherited GIC base is used 2017-11-09 11:35:28 +00:00
irq-mmp.c irqchip/mmp: Make mmp_intc_conf const 2017-08-31 15:31:43 +01:00
irq-mtk-cirq.c irqchip: Add Mediatek mtk-cirq driver 2017-04-07 10:52:22 +01:00
irq-mtk-sysirq.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-mvebu-gicp.c irqchip/irq-mvebu-gicp: Add missing spin_lock init 2017-11-01 00:35:18 +01:00
irq-mvebu-gicp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-mvebu-icu.c irqchip/irq-mvebu-icu: Add new driver for Marvell ICU 2017-06-23 09:14:57 +01:00
irq-mvebu-odmi.c irqchip/gic: Return IRQ_SET_MASK_OK_DONE in the set_affinity method 2016-02-19 15:42:29 +00:00
irq-mvebu-pic.c irqchip/mvebu-pic: New driver for Marvell Armada 7K/8K PIC 2016-08-22 22:58:27 +00:00
irq-mxs.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-nvic.c irqchip: Convert all alloc/xlate users from of_node to fwnode 2015-10-13 19:01:23 +02:00
irq-omap-intc.c irqchip/irq-omap-intc: Do not statically initialize variables 2017-10-16 21:05:14 +02:00
irq-ompic.c irqchip/ompic: fix return value check in ompic_of_init() 2018-01-04 11:13:22 +00:00
irq-or1k-pic.c irqchip/or1k-pic: Fix interrupt acknowledgement 2017-06-30 15:33:11 +01:00
irq-orion.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
irq-partition-percpu.c irqchip: Add per-cpu interrupt partitioning library 2016-05-02 13:42:51 +02:00
irq-pic32-evic.c irqchip/irq-pic32-evic: Fix bug with external interrupts. 2016-06-02 18:03:50 +01:00
irq-renesas-h8s.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-renesas-h8300h.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-renesas-intc-irqpin.c kernel/irq: Extend lockdep class for request mutex 2017-12-28 12:26:35 +01:00
irq-renesas-irqc.c irqchip/renesas-irqc: Move over to nested generic chip 2015-09-29 20:41:00 +02:00
irq-s3c24xx.c irqchip/s3c24xx: pr_err() strings should end with newlines 2017-11-13 14:35:08 +00:00
irq-sa11x0.c ARM: kill off set_irq_flags usage 2015-07-28 13:58:13 +02:00
irq-sirfsoc.c irqchip/sirfsoc: Fix sparse warnings on __iomem 2016-06-13 00:48:31 +00:00
irq-sni-exiu.c irqchip/exiu: Fix return value check in exiu_init() 2017-11-14 11:27:22 +01:00
irq-st.c irqchip/st: Mark st_irq_syscfg_resume() __maybe_unused 2016-12-19 10:55:43 +01:00
irq-stm32-exti.c irqchip/stm32: Move the wakeup on interrupt mask 2017-11-07 11:44:43 +00:00
irq-sun4i.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-sunxi-nmi.c irqchip/sunxi-nmi: Support sun6i-a31-r-intc compatible 2017-06-22 14:08:17 +01:00
irq-tango.c irqchip/tango: Use irq_gc_mask_disable_and_ack_set 2017-10-13 16:31:05 +01:00
irq-tb10x.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
irq-tegra.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-ts4800.c irqchip/ts4800: Make ts4800_ic_ops static const 2016-02-18 02:09:18 +00:00
irq-uniphier-aidet.c irqchip: Add UniPhier AIDET irqchip driver 2017-08-23 10:08:44 +01:00
irq-versatile-fpga.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq-vf610-mscm-ir.c irqchip: Convert all alloc/xlate users from of_node to fwnode 2015-10-13 19:01:23 +02:00
irq-vic.c irqchip/vic: Improve function-level documentation 2016-10-05 11:53:35 +02:00
irq-vt8500.c irqchip: Kill off set_irq_flags usage 2015-09-16 16:53:38 +02:00
irq-xilinx-intc.c irqchip: Convert to using %pOF instead of full_name 2017-08-23 10:09:28 +01:00
irq-xtensa-mx.c irqchip/xtensa-mx: Report that effective affinity is a single target 2017-08-18 10:54:43 +02:00
irq-xtensa-pic.c xtensa: don't use linux IRQ #0 2017-06-05 16:53:10 -07:00
irq-zevio.c irqchip/zevio: Use irq_data_get_chip_type() helper 2015-12-30 18:29:02 +01:00
irqchip.c irqchip / GIC: Convert the GIC driver to ACPI probing 2015-10-01 02:18:38 +02:00
qcom-irq-combiner.c irqchip/qcom: Fix u32 comparison with value less than zero 2017-11-23 20:03:58 +01:00
spear-shirq.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00