Re: [PATCH] Revert "ARM: dma-mapping: Set proper DMA ops in arm_iommu_detach_device()"

_iommu_detach_device(), the given device later ignored by >>> arch_setup_dma_ops() and stays with non-IOMMU dma_ops. >>> >>> Reported-by: Tobias Jakobi >>> Fixes: 1874619a7df4 "ARM: dma-mapping: Set proper DMA ops in >>> arm_iommu_detach_device()"

Re: [PATCH v4 0/2] Exynos IOMMU: proper runtime PM support (use device dependencies)

Hello again, Tobias Jakobi wrote: > Hello Marek, > > I have applied the new version onto 4.8.0 but I'm seeing this Oops on > shutdown/reboot. However it only shows up with my non-debug config. sorry for the false alarm. That Oops on reboot was due to some other patch I had applied.

Re: [PATCH v4 0/2] Exynos IOMMU: proper runtime PM support (use device dependencies)

Hello Marek, I have applied the new version onto 4.8.0 but I'm seeing this Oops on shutdown/reboot. However it only shows up with my non-debug config. > [ 897.046373] Internal error: Oops: 8005 [#1] PREEMPT SMP ARM > [ 897.046652] Modules linked in: bridge stp llc bnep btrfs xor xor_neon

Re: [PATCH v3 0/2] Exynos IOMMU: proper runtime PM support (use device dependencies)

Hello Marek, I did some tests with the new version today. Sadly the reboot/shutdown issues are still present. Here's what appears on the UART last: > [ 399.538147] sd 0:0:0:0: [sda] Synchronizing SCSI cache > [ 404.970649] smsc95xx 1-2.1.1:1.0 eth0: Failed to read reg index > 0x0114: -110

Re: [PATCH v2 00/10] Exynos IOMMU: proper runtime PM support (use device dependencies)

Hello Marek, Marek Szyprowski wrote: > Hi Tobias, > > > On 2016-07-15 15:21, Tobias Jakobi wrote: >> Tobias Jakobi wrote: >>> Hello Marek, >>> >>> I've tested the patchset on 4.7-rc7 and noticed that it breaks reboot on >>> my ODROID

Re: [PATCH v2 00/10] Exynos IOMMU: proper runtime PM support (use device dependencies)

Tobias Jakobi wrote: > Hello Marek, > > I've tested the patchset on 4.7-rc7 and noticed that it breaks reboot on > my ODROID-X2. > > Going to check where exactly things break. Sadly it's the last patch where everything comes together: "iommu/exynos: Add proper runtime pm

Re: [PATCH v2 00/10] Exynos IOMMU: proper runtime PM support (use device dependencies)

Hello Marek, I've tested the patchset on 4.7-rc7 and noticed that it breaks reboot on my ODROID-X2. Going to check where exactly things break. With best wishes, Tobias Marek Szyprowski wrote: > Hello, > > This patch series finally implements proper runtime PM support in Exynos > IOMMU

Re: [PATCH v4 00/18] Exynos SYSMMU (IOMMU) integration with DT and DMA-mapping subsystem

Hello, just some warnings I encountered when compiling this today: drivers/iommu/exynos-iommu.c: In function ‘exynos_iommu_of_setup’: drivers/iommu/exynos-iommu.c:1177:2: warning: passing argument 2 of ‘of_iommu_set_ops’ discards ‘const’ qualifier from pointer target type [enabled by default]