Re: [PATCH] iommu/arm-smmu-v3: suppress MSI allocation failure message

2018-01-17 Thread Joerg Roedel
On Wed, Jan 17, 2018 at 07:08:39PM +, Marc Zyngier wrote: > On 17/01/18 18:54, Robin Murphy wrote: > Indeed. How about checking dev->msi_domain first, which should tell you > whether it is even possible to allocate MSIs, and fallback to wired IRQs > instead. That way, we keep the warning on ge

Re: [PATCH] iommu/arm-smmu-v3: suppress MSI allocation failure message

2018-01-17 Thread Marc Zyngier
On 17/01/18 18:54, Robin Murphy wrote: > [ +Marc just in case ] > > On 17/01/18 18:39, Nate Watterson wrote: >> From: Sinan Kaya >> >> Even though QDF2400 supports MSI interrupts with SMMUv3, it is not enabled >> in ACPI FW to preserve compatibility with older kernel versions. Code is >> emitting

Re: [PATCH] iommu/arm-smmu-v3: suppress MSI allocation failure message

2018-01-17 Thread Robin Murphy
[ +Marc just in case ] On 17/01/18 18:39, Nate Watterson wrote: From: Sinan Kaya Even though QDF2400 supports MSI interrupts with SMMUv3, it is not enabled in ACPI FW to preserve compatibility with older kernel versions. Code is emitting warning message during boot. This is causing some test

[PATCH] iommu/arm-smmu-v3: suppress MSI allocation failure message

2018-01-17 Thread Nate Watterson
From: Sinan Kaya Even though QDF2400 supports MSI interrupts with SMMUv3, it is not enabled in ACPI FW to preserve compatibility with older kernel versions. Code is emitting warning message during boot. This is causing some test tools to record a false warning and is causing support issues. Bet