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Bogdan Purcareata 56302c53d3 powerpc/mpic: Remove WHOAMI readback after EOI 
After previous discussions regarding the subject [1][2], there's no clear
explanation or reason why the call was needed in the first place. The sensible
argument is some sort of synchronization between the CPU and the MPIC, which
hasn't been pointed out precisely and is no longer required (at least on BookE
platforms).

The benefit of this change is saving a MMIO trap per interrupt when running in a
KVM guest.

[1] https://patchwork.ozlabs.org/patch/429098/
[2] https://patchwork.ozlabs.org/patch/433557/

Signed-off-by: Bogdan Purcareata <bogdan.purcareata@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
 		2015-03-31 22:23:20 -05:00
..
ge powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
qe_lib powerpc: don't export static symbol 2015-03-31 22:23:18 -05:00
xics powerpc: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:36 -08:00
6xx-suspend.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
Kconfig powerpc: Added PCI MSI support using the HSTA module 2014-05-01 08:26:30 +10:00
Makefile powerpc: Added PCI MSI support using the HSTA module 2014-05-01 08:26:30 +10:00
axonram.c Merge branch 'for-3.20/core' into for-3.20/drivers 2015-01-13 21:58:45 -07:00
cpm1.c powerpc: Mark low level irq handlers NO_THREAD 2013-06-20 16:55:08 +10:00
cpm2.c powerpc/fsl-cpm: Configure clock correctly for SCC 2010-04-19 23:13:03 -05:00
cpm2_pic.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
cpm2_pic.h powerpc/cpm2: Checkpatch cleanup 2010-03-04 10:43:58 -06:00
cpm_common.c powerpc: add explicit OF includes 2013-10-09 20:04:11 -05:00
dart.h
…
dart_iommu.c powerpc/kmemleak: Do not scan the DART table 2014-06-24 14:29:46 +10:00
dcr-low.S powerpc/4xx: Extended DCR support v2 2008-12-21 14:21:15 +11:00
dcr.c powerpc: Export dcr_ind_lock to fix build error 2014-09-25 23:14:45 +10:00
ehv_pic.c powerpc:eVh_pic: Kill irq_desc abuse 2014-03-04 17:37:51 +01:00
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: sysdev: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
fsl_gtm.c Merge remote-tracking branch 'grant/devicetree/next' into for-next 2013-11-07 10:34:46 -06:00
fsl_lbc.c powerpc/85xx: handle the eLBC error interrupt if it exists in dts 2014-01-10 17:19:27 -06:00
fsl_mpic_err.c powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
fsl_mpic_timer_wakeup.c powerpc/fsl: add MPIC timer wakeup support 2013-07-01 18:38:42 -05:00
fsl_msi.c powerpc/85xx: workaround for chips with MSI hardware errata 2015-03-23 19:51:18 -05:00
fsl_msi.h powerpc/85xx: workaround for chips with MSI hardware errata 2015-03-23 19:51:18 -05:00
fsl_pci.c powerpc updates for 3.20 2015-02-11 18:15:38 -08:00
fsl_pci.h fsl/pci: The new pci suspend/resume implementation 2014-03-19 22:37:44 -05:00
fsl_pmc.c powerpc: sysdev: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
fsl_rio.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
fsl_rio.h powerpc/fsl-rio: add support for mapping inbound windows 2014-11-12 23:56:16 -06:00
fsl_rmu.c powerpc/rmu: Fix the error memory free parameters 2014-05-22 18:08:13 -05:00
fsl_soc.c powerpc/fsl: fsl_soc: delete unneeded test before of_node_put 2014-11-10 09:59:34 +11:00
fsl_soc.h powerpc/mpc512x: remove unnecessary #if 2013-10-30 22:56:10 +01:00
grackle.c powerpc: rename ppc_pci_*_flags to pci_*_flags 2011-07-12 09:28:04 -05:00
i8259.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
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 superfluous bootmem includes 2014-11-10 09:59:26 +11:00
ipic.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
micropatch.c powerpc/8xx: Remove empty asm/mpc8xx.h 2014-06-25 18:49:40 -05:00
mmio_nvram.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
mpc5xxx_clocks.c powerpc/mpc5xxx: delete unneeded test before of_node_put 2014-11-10 09:59:34 +11:00
mpc8xx_pic.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
mpc8xx_pic.h
…
mpic.c powerpc/mpic: Remove WHOAMI readback after EOI 2015-03-31 22:23:20 -05:00
mpic.h powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
mpic_msgr.c powerpc: sysdev: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
mpic_msi.c of/irq: Replace of_irq with of_phandle_args 2013-10-24 11:42:51 +01:00
mpic_pasemi_msi.c powerpc updates for 3.19 2014-12-11 17:48:14 -08:00
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 updates for 3.19 2014-12-11 17:48:14 -08:00
msi_bitmap.c powerpc/msi: Use WARN_ON() in msi bitmap selftests 2014-10-15 13:09:33 +11:00
mv64x60.h
…
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 irq_domain: Replace irq_alloc_host() with revmap-specific initializers 2012-02-16 06:11:22 -07:00
mv64x60_udbg.c dt/bindings: Remove device_type "serial" from marvell,mv64360-mpsc 2014-01-16 16:31:31 +00:00
of_rtc.c powerpc: add explicit OF includes 2013-10-09 20:04:11 -05:00
pmi.c powerpc: sysdev: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
ppc4xx_cpm.c powerpc/4xx/cpm: delete unneeded test before of_node_put 2014-11-10 09:59:34 +11:00
ppc4xx_gpio.c of/gpio: add default of_xlate function if device has a node pointer 2010-07-05 16:14:30 -06:00
ppc4xx_hsta_msi.c powerpc/4xx: Fix return value check in hsta_msi_probe() 2014-12-29 15:45:43 +11:00
ppc4xx_msi.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
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: add explicit OF includes 2013-10-09 20:04:11 -05:00
rtc_cmos_setup.c PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. 2013-07-15 11:25:01 +09:30
scom.c powerpc/scom: Improve debugfs interface 2013-11-06 14:13:50 +11:00
simple_gpio.c powerpc: remove non-required uses of include <linux/module.h> 2011-10-31 19:30:44 -04:00
simple_gpio.h powerpc: Implement GPIO driver for simple memory-mapped banks 2008-12-30 11:13:45 -06:00
tsi108_dev.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
tsi108_pci.c irq_domain: Add support for base irq and hwirq in legacy mappings 2012-02-16 06:11:23 -07:00
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 superfluous bootmem includes 2014-11-10 09:59:26 +11:00
xilinx_intc.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
xilinx_pci.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00