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243e25112d
linux/arch/powerpc/sysdev
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Benjamin Herrenschmidt 243e25112d powerpc/xive: Native exploitation of the XIVE interrupt controller 
The XIVE interrupt controller is the new interrupt controller
found in POWER9. It supports advanced virtualization capabilities
among other things.

Currently we use a set of firmware calls that simulate the old
"XICS" interrupt controller but this is fairly inefficient.

This adds the framework for using XIVE along with a native
backend which OPAL for configuration. Later, a backend allowing
the use in a KVM or PowerVM guest will also be provided.

This disables some fast path for interrupts in KVM when XIVE is
enabled as these rely on the firmware emulation code which is no
longer available when the XIVE is used natively by Linux.

A latter patch will make KVM also directly exploit the XIVE, thus
recovering the lost performance (and more).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[mpe: Fixup pr_xxx("XIVE:"...), don't split pr_xxx() strings,
 tweak Kconfig so XIVE_NATIVE selects XIVE and depends on POWERNV,
 fix build errors when SMP=n, fold in fixes from Ben:
   Don't call cpu_online() on an invalid CPU number
   Fix irq target selection returning out of bounds cpu#
   Extra sanity checks on cpu numbers
 ]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-10 21:41:34 +10:00
..
ge powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
xics powerpc/xics: Work around limitations of OPAL XICS priority handling 2017-03-06 21:42:41 +11:00
xive powerpc/xive: Native exploitation of the XIVE interrupt controller 2017-04-10 21:41:34 +10:00
6xx-suspend.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
axonram.c axonram: Fix gendisk handling 2017-03-08 10:55:40 -07:00
cpm1.c soc/fsl/qe: fix Oops on CPM1 (and likely CPM2) 2016-09-25 02:38:52 -05:00
cpm2_pic.c powerpc/cpm2: Use irq_set_handler_locked() 2015-09-16 15:43:10 +02:00
cpm2_pic.h
cpm2.c soc/fsl/qe: fix Oops on CPM1 (and likely CPM2) 2016-09-25 02:38:52 -05:00
cpm_common.c soc/fsl/qe: fix Oops on CPM1 (and likely CPM2) 2016-09-25 02:38:52 -05:00
dart_iommu.c dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dart.h
dcr-low.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
dcr.c powerpc: Use bool function return values of true/false not 1/0 2015-03-31 14:19:47 +11:00
ehv_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_85xx_cache_ctlr.h powerpc/85xx: Fix sram_offset parameter type 2012-07-26 13:24:32 -05:00
fsl_85xx_cache_sram.c powerpc/85xx: Fix compiler error with THIS_MODULE and related 2012-03-16 14:50:25 -05:00
fsl_85xx_l2ctlr.c powerpc/85xx: Don't report SRAM to L2 cache fallback as error 2016-07-08 19:55:34 -05:00
fsl_gtm.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_lbc.c powerpc/fsl-lbc: use DEFINE_SPINLOCK() 2016-12-09 23:08:40 -06:00
fsl_mpic_err.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_mpic_timer_wakeup.c powerpc/fsl: add MPIC timer wakeup support 2013-07-01 18:38:42 -05:00
fsl_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_msi.h powerpc/85xx: workaround for chips with MSI hardware errata 2015-03-23 19:51:18 -05:00
fsl_pci.c powerpc/fsl_pci: Size upper inbound window based on RAM size 2016-09-25 02:38:54 -05:00
fsl_pci.h EDAC, mpc85xx: Make mpc85xx-pci-edac a platform device 2015-12-11 16:56:16 +01:00
fsl_pmc.c powerpc/fsl_pmc: use builtin_platform_driver 2016-12-04 19:51:44 -06:00
fsl_rcpm.c powerpc/rcpm: Fix build break when SMP=n 2016-03-16 15:22:32 +11:00
fsl_rio.c powerpc: Add support for relative exception tables 2016-11-14 11:11:51 +11:00
fsl_rio.h rapidio: add global inbound port write interfaces 2016-03-22 15:36:02 -07:00
fsl_rmu.c rapidio: add global inbound port write interfaces 2016-03-22 15:36:02 -07:00
fsl_soc.c powerpc/fsl_soc: improve and simplify get_baudrate 2016-11-23 01:23:37 -06:00
fsl_soc.h powerpc: Convert fsl_rstcr_restart to a reset handler 2016-09-25 02:38:50 -05:00
grackle.c powerpc: rename ppc_pci_*_flags to pci_*_flags 2011-07-12 09:28:04 -05:00
i8259.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
indirect_pci.c powerpc/fsl_pci: Fix pci stack build bug with FRAME_WARN 2015-01-29 19:56:15 -06:00
ipic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ipic.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
Kconfig powerpc/xive: Native exploitation of the XIVE interrupt controller 2017-04-10 21:41:34 +10:00
Makefile powerpc/xive: Native exploitation of the XIVE interrupt controller 2017-04-10 21:41:34 +10:00
micropatch.c powerpc/8xx: Remove empty asm/mpc8xx.h 2014-06-25 18:49:40 -05:00
mmio_nvram.c powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
mpc5xxx_clocks.c powerpc/mpc5xxx: Use of_get_next_parent to simplify code 2015-10-15 20:32:01 +11:00
mpc8xx_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpc8xx_pic.h
mpic_msgr.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic_msi.c irqdomain: Use irq_domain_get_of_node() instead of direct field access 2015-10-13 19:01:23 +02:00
mpic_timer.c powerpc/mpic_timer: fix convert ticks to time subtraction overflow 2014-01-09 17:52:14 -06:00
mpic_u3msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic.c powerpc/mpic: use of_property_read_bool 2016-09-25 02:38:51 -05:00
mpic.h powerpc/pasemi: Only the build the pasemi MSI code for PASEMI=y 2015-05-11 19:55:25 +10:00
msi_bitmap.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
mv64x60_dev.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
mv64x60_pci.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
mv64x60_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mv64x60_udbg.c dt/bindings: Remove device_type "serial" from marvell,mv64360-mpsc 2014-01-16 16:31:31 +00:00
mv64x60.h
of_rtc.c powerpc: add explicit OF includes 2013-10-09 20:04:11 -05:00
pmi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_cpm.c powerpc/4xx/cpm: delete unneeded test before of_node_put 2014-11-10 09:59:34 +11:00
ppc4xx_gpio.c powerpc: ppc4xx: drop unused variable 2016-03-31 09:14:22 +02:00
ppc4xx_hsta_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_ocm.c powerpc/44x: Fix ocm_block allocation 2013-12-10 11:25:04 +11:00
ppc4xx_pci.c powerpc: Remove superfluous bootmem includes 2014-11-10 09:59:26 +11:00
ppc4xx_pci.h powerpc/476fpe: Add 476fpe SoC code 2011-12-09 07:51:02 -05:00
ppc4xx_soc.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
rtc_cmos_setup.c PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. 2013-07-15 11:25:01 +09:30
scom.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
simple_gpio.c powerpc: simple-gpio: use gpiochip data pointer 2016-03-30 10:53:23 +02:00
simple_gpio.h
tsi108_dev.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
tsi108_pci.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
udbg_memcons.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
uic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
xilinx_intc.c powerpc/virtex: Use generic xilinx irqchip driver 2016-11-29 09:14:50 +00:00
xilinx_pci.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00