Ian Munsie b0345bbc6d powerpc/msi: Improve IRQ bitmap allocator ... Currently msi_bitmap_alloc_hwirqs() will round up any IRQ allocation requests to the nearest power of 2. eg. ask for 5 IRQs and you'll get 8. This wastes a lot of IRQs which can be a scarce resource. For cxl we may require multiple IRQs for every context that is attached to the accelerator. There may be 1000s of contexts attached, hence we can easily run out of IRQs, especially if we are needlessly wasting them. This changes the msi_bitmap_alloc_hwirqs() to allocate only the required number of IRQs, hence avoiding this wastage. It keeps the natural alignment requirement though. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2014-10-08 20:15:42 +11:00
..
ge	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
qe_lib	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
xics	powerpc/powernv: Don't call generic code on offline cpus	2014-09-25 23:14:50 +10:00
6xx-suspend.S
axonram.c	powerpc: make of_device_ids const	2014-09-25 23:14:46 +10:00
cpm1.c	powerpc: Mark low level irq handlers NO_THREAD	2013-06-20 16:55:08 +10:00
cpm2.c
cpm2_pic.c	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
cpm2_pic.h
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
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
fsl_85xx_cache_sram.c
fsl_85xx_l2ctlr.c	powerpc: make of_device_ids const	2014-09-25 23:14:46 +10:00
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
fsl_mpic_timer_wakeup.c	powerpc/fsl: add MPIC timer wakeup support	2013-07-01 18:38:42 -05:00
fsl_msi.c	Revert "powerpc/fsl_msi: spread msi ints across different MSIRs"	2014-09-19 15:20:42 -05:00
fsl_msi.h	Revert "powerpc/fsl_msi: spread msi ints across different MSIRs"	2014-09-19 15:20:42 -05:00
fsl_pci.c	powerpc: fsl_pci: Add forced PCI Agent enumeration	2014-09-03 18:51:23 -05:00
fsl_pci.h	fsl/pci: The new pci suspend/resume implementation	2014-03-19 22:37:44 -05:00
fsl_pmc.c	powerpc: add explicit OF includes	2013-10-09 20:04:11 -05:00
fsl_rio.c	powerpc/fsl-rio: Fix fsl_rio_setup error paths and use-after-unmap	2014-05-09 15:49:05 -05:00
fsl_rio.h
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: remove 'fixed-link' parsing code	2014-05-22 15:16:44 -04:00
fsl_soc.h	powerpc/mpc512x: remove unnecessary #if	2013-10-30 22:56:10 +01:00
grackle.c
i8259.c	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
indirect_pci.c	powerpc/sysdev: Fix a pci section mismatch for Book E	2014-01-07 19:23:31 -06:00
ipic.c
ipic.h
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
micropatch.c	powerpc/8xx: Remove empty asm/mpc8xx.h	2014-06-25 18:49:40 -05:00
mmio_nvram.c
mpc5xxx_clocks.c
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: Make a bunch of things static	2014-09-25 23:14:41 +10:00
mpic.h
mpic_msgr.c	powerpc/mpic_msgr: Use kcalloc and correct the argument to sizeof	2014-07-29 19:26:31 -05:00
mpic_msi.c	of/irq: Replace of_irq with of_phandle_args	2013-10-24 11:42:51 +01:00
mpic_pasemi_msi.c
mpic_timer.c	powerpc/mpic_timer: fix convert ticks to time subtraction overflow	2014-01-09 17:52:14 -06:00
mpic_u3msi.c
msi_bitmap.c	powerpc/msi: Improve IRQ bitmap allocator	2014-10-08 20:15:42 +11:00
mv64x60.h
mv64x60_dev.c	powerpc: make of_device_ids const	2014-09-25 23:14:46 +10:00
mv64x60_pci.c
mv64x60_pic.c
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: make of_device_ids const	2014-09-25 23:14:46 +10:00
ppc4xx_cpm.c
ppc4xx_gpio.c
ppc4xx_hsta_msi.c	powerpc: Added PCI MSI support using the HSTA module	2014-05-01 08:26:30 +10:00
ppc4xx_msi.c
ppc4xx_ocm.c	powerpc/44x: Fix ocm_block allocation	2013-12-10 11:25:04 +11:00
ppc4xx_pci.c	powerpc: Added PCI MSI support using the HSTA module	2014-05-01 08:26:30 +10:00
ppc4xx_pci.h
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
simple_gpio.h
tsi108_dev.c
tsi108_pci.c
udbg_memcons.c	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
uic.c
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