leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
b033185419
linux/arch/powerpc/platforms/powernv
History
Wei Yang b033185419 powerpc/powernv: don't enable SRIOV when VF BAR has non 64bit-prefetchable BAR 
On PHB3, we enable SRIOV devices by mapping IOV BAR with M64 BARs. If a
SRIOV device's IOV BAR is not 64bit-prefetchable, this is not assigned from
64bit prefetchable window, which means M64 BAR can't work on it.

The reason is PCI bridges support only 2 memory windows and the kernel code
programs bridges in the way that one window is 32bit-nonprefetchable and
the other one is 64bit-prefetchable. So if devices' IOV BAR is 64bit and
non-prefetchable, it will be mapped into 32bit space and therefore M64
cannot be used for it.

This patch makes this explicit and truncate IOV resource in this case to
save MMIO space.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-02-10 12:04:54 +11:00
..
eeh-powernv.c powerpc/powernv: Simplify definitions of EEH debugfs handlers 2016-02-10 12:04:46 +11:00
idle.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
Kconfig powerpc/powernv: Add opal-prd channel 2015-06-05 08:32:21 +10:00
Makefile powerpc/powernv: Remove support for p5ioc2 2016-02-08 22:03:37 +11:00
npu-dma.c powerpc/powernv: Add support for Nvlink NPUs 2015-12-17 22:41:00 +11:00
opal-async.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-dump.c powernv/opal-dump: Convert to irq domain 2015-05-22 15:14:38 +10:00
opal-elog.c powerpc/powernv: Fix opal-elog interrupt handler 2015-07-06 20:24:36 +10:00
opal-flash.c powerpc/powernv: Add interfaces for flash device access 2015-04-11 20:49:21 +10:00
opal-hmi.c powerpc/powernv: Invoke opal_cec_reboot2() on unrecoverable HMI. 2015-08-06 15:10:19 +10:00
opal-irqchip.c powerpc/opal-irqchip: Fix deadlock introduced by "Fix double endian conversion" 2015-12-18 22:24:15 +11:00
opal-kmsg.c powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages 2016-01-13 12:35:17 +11:00
opal-lpc.c powerpc/powernv: Properly fix LPC debugfs endianness 2014-10-31 17:09:04 +11:00
opal-memory-errors.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-msglog.c powerpc/powernv: new function to access OPAL msglog 2016-02-09 20:27:04 +11:00
opal-nvram.c powerpc/powernv: Add pstore support on powernv 2015-03-23 14:06:10 +11:00
opal-power.c powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform 2015-07-16 13:34:36 +10:00
opal-prd.c powerpc/powernv: Drop owner assignment from platform_driver 2015-11-24 14:21:28 +11:00
opal-rtc.c powerpc/powernv: Only delay opal_rtc_read() retry when necessary 2015-12-27 19:12:40 +11:00
opal-sensor.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-sysparam.c powerpc/powernv: convert OPAL codes returned by sysparam calls 2015-06-04 22:27:56 +10:00
opal-tracepoints.c powerpc: Replace __get_cpu_var uses 2014-11-03 12:12:32 +11:00
opal-wrappers.S powerpc/powernv: Add a kmsg_dumper that flushes console output on panic 2015-12-27 19:12:40 +11:00
opal-xscom.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
opal.c powerpc/powernv: new function to access OPAL msglog 2016-02-09 20:27:04 +11:00
pci-ioda.c powerpc/powernv: don't enable SRIOV when VF BAR has non 64bit-prefetchable BAR 2016-02-10 12:04:54 +11:00
pci.c powerpc/powernv: Remove support for p5ioc2 2016-02-08 22:03:37 +11:00
pci.h powerpc/powernv: Remove support for p5ioc2 2016-02-08 22:03:37 +11:00
powernv.h powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
setup.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
smp.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
subcore-asm.S powerpc/powernv: Add support for POWER8 split core on powernv 2014-05-28 13:35:37 +10:00
subcore.c powerpc: Add an inline function to update POWER8 HID0 2015-08-14 15:58:28 +10:00
subcore.h powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00