RE: [PATCH 2/7] iommu: add api to get iommu_domain of a device

2013-10-06 Thread Bhushan Bharat-R65777
> -Original Message- > From: Alex Williamson [mailto:alex.william...@redhat.com] > Sent: Friday, October 04, 2013 11:42 PM > To: Bhushan Bharat-R65777 > Cc: j...@8bytes.org; b...@kernel.crashing.org; ga...@kernel.crashing.org; > linux- > ker...@vger.kernel.org; linuxppc-dev@lists.ozlabs.

[PATCH] powerpc, perf: Configure BHRB filter before enabling PMU interrupts

2013-10-06 Thread Anshuman Khandual
Right now the `config_bhrb` PMU specific call happens after write_mmcr0 which actually enables the PMU for event counting and interrupt. So there is a small window of time where the PMU and BHRB runs without the required HW branch filter (if any) enabled in BHRB. This can cause some of the branch s

Re: [PATCH v4 net-next] fix unsafe set_memory_rw from softirq

2013-10-06 Thread Eric Dumazet
On Fri, 2013-10-04 at 00:14 -0700, Alexei Starovoitov wrote: > on x86 system with net.core.bpf_jit_enable = 1 > cannot reuse jited filter memory, since it's readonly, > so use original bpf insns memory to hold work_struct > > defer kfree of sk_filter until jit completed freeing > > tested on x86

Re: [PATCH RFC v4 2/5] dma: mpc512x: add support for peripheral transfers

2013-10-06 Thread Gerhard Sittig
On Thu, Oct 03, 2013 at 18:06 +0400, Alexander Popov wrote: > > Introduce support for slave s/g transfer preparation and the associated > device control callback in the MPC512x DMA controller driver, which adds > support for data transfers between memory and peripheral I/O to the > previously supp

Re: [PATCH RFC v2 0/5] MPC512x DMA slave s/g support, OF DMA lookup

2013-10-06 Thread Gerhard Sittig
On Thu, Oct 03, 2013 at 18:00 +0400, Alexander Popov wrote: > > v2013/7/14 Gerhard Sittig : > > this series > > - introduces slave s/g support (that's support for DMA transfers which > > involve peripherals in contrast to mem-to-mem transfers) > > - adds device tree based lookup support for DMA

Re: [PATCH RFC 00/77] Re-design MSI/MSI-X interrupts enablement pattern

2013-10-06 Thread Alexander Gordeev
On Sun, Oct 06, 2013 at 05:19:46PM +1100, Benjamin Herrenschmidt wrote: > On Sun, 2013-10-06 at 08:02 +0200, Alexander Gordeev wrote: > > In fact, in the current design to address the quota race decently the > > drivers would have to protect the *loop* to prevent the quota change > > between a pci_