[PATCH] iommu: rockchip: Drop verbose prints in the interrupt handler

Printing verbosely via WARN macros and friends in interrupt handlers is strongly discouraged. Drop them and use proper ratelimited prints. Signed-off-by: Ezequiel Garcia --- drivers/iommu/rockchip-iommu.c | 10 ++ 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iomm

Re: [PATCH] of/platform: Initialise AMBA default DMA masks

On Thu, Aug 30, 2018 at 10:45:11AM +0200, Linus Walleij wrote: > On Thu, Aug 30, 2018 at 10:40 AM Russell King - ARM Linux > wrote: > > > Well, as I've no idea what the issue is here, I can't do anything or > > make any suggestions. I wasn't copied on the initial part of the > > thread. > > Sor

[PATCH v16 5/5] iommu/arm-smmu: Add support for qcom,smmu-v2 variant

qcom,smmu-v2 is an arm,smmu-v2 implementation with specific clock and power requirements. On msm8996, multiple cores, viz. mdss, video, etc. use this smmu. On sdm845, this smmu is used with gpu. Add bindings for the same. Signed-off-by: Vivek Gautam Reviewed-by: Rob Herring Reviewed-by: Tomasz F

[PATCH v16 3/5] iommu/arm-smmu: Add the device_link between masters and smmu

From: Sricharan R Finally add the device link between the master device and smmu, so that the smmu gets runtime enabled/disabled only when the master needs it. This is done from add_device callback which gets called once when the master is added to the smmu. Signed-off-by: Sricharan R Signed-of

[PATCH v16 4/5] dt-bindings: arm-smmu: Add bindings for qcom,smmu-v2

Add bindings doc for Qcom's smmu-v2 implementation. Signed-off-by: Vivek Gautam Reviewed-by: Tomasz Figa Tested-by: Srinivas Kandagatla --- .../devicetree/bindings/iommu/arm,smmu.txt | 39 ++ 1 file changed, 39 insertions(+) diff --git a/Documentation/devicetree/bi

[PATCH v16 2/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device

From: Sricharan R The smmu device probe/remove and add/remove master device callbacks gets called when the smmu is not linked to its master, that is without the context of the master device. So calling runtime apis in those places separately. Global locks are also initialized before enabling runt

[PATCH v16 0/5] iommu/arm-smmu: Add runtime pm/sleep support

This series provides the support for turning on the arm-smmu's clocks/power domains using runtime pm. This is done using device links between smmu and client devices. The device link framework keeps the two devices in correct order for power-cycling across runtime PM or across system-wide PM. With

[PATCH v16 1/5] iommu/arm-smmu: Add pm_runtime/sleep ops

From: Sricharan R The smmu needs to be functional only when the respective master's using it are active. The device_link feature helps to track such functional dependencies, so that the iommu gets powered when the master device enables itself using pm_runtime. So by adapting the smmu driver for r

Re: [Patch v15 2/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device

On Thu, Aug 30, 2018 at 3:04 PM Tomasz Figa wrote: > > On Thu, Aug 30, 2018 at 6:22 PM Vivek Gautam > wrote: > > > > On Mon, Aug 27, 2018 at 4:27 PM Vivek Gautam > > wrote: > > > > > > From: Sricharan R > > > > > > The smmu device probe/remove and add/remove master device callbacks > > > gets c

Re: [PATCH v4 2/2] iommu/arm-smmu-v3: avoid redundant CMD_SYNCs if possible

On 19/08/2018 08:51, Zhen Lei wrote: More than two CMD_SYNCs maybe adjacent in the command queue, and the first one has done what others want to do. Drop the redundant CMD_SYNCs can improve IO performance especially under the pressure scene. I did the statistics in my test environment, the numbe

Re: various dma_mask fixups

On Wed, Aug 29, 2018 at 03:38:21PM -0700, Guenter Roeck wrote: > On Wed, Aug 29, 2018 at 08:23:58AM +0200, Christoph Hellwig wrote: > > Fix warnings and regressions from requiring a dma mask. > > With this series applied, I see the following in my sh4 boot tests. > > sb 1-1: new full-speed USB de

Re: [Patch v15 2/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device

On Thu, Aug 30, 2018 at 6:22 PM Vivek Gautam wrote: > > On Mon, Aug 27, 2018 at 4:27 PM Vivek Gautam > wrote: > > > > From: Sricharan R > > > > The smmu device probe/remove and add/remove master device callbacks > > gets called when the smmu is not linked to its master, that is without > > the c

Re: [Patch v15 2/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device

On Mon, Aug 27, 2018 at 4:27 PM Vivek Gautam wrote: > > From: Sricharan R > > The smmu device probe/remove and add/remove master device callbacks > gets called when the smmu is not linked to its master, that is without > the context of the master device. So calling runtime apis in those places >

Re: [PATCH] of/platform: Initialise AMBA default DMA masks

On Thu, Aug 30, 2018 at 10:40 AM Russell King - ARM Linux wrote: > Well, as I've no idea what the issue is here, I can't do anything or > make any suggestions. I wasn't copied on the initial part of the > thread. Sorry about that, it was because the original patch only hit in drivers/of/*. I w

Re: [PATCH] of/platform: Initialise AMBA default DMA masks

On Wed, Aug 29, 2018 at 07:55:21AM +0200, Christoph Hellwig wrote: > On Tue, Aug 28, 2018 at 03:14:14PM +0100, Russell King - ARM Linux wrote: > > But yes, the fundamental fact is that AMBA devices don't have any > > care about the differences between coherent and streaming DMA. The > > distinctio

Re: [PATCH] dma-mapping: fix return type of dma_set_max_seg_size()

On Wed, Aug 29, 2018 at 11:30 PM Niklas Söderlund wrote: > The function dma_set_max_seg_size() can return either 0 on success or > -EIO on error. Change its return type from unsigned int to int to > capture this. > > Signed-off-by: Niklas Söderlund Reviewed-by: Geert Uytterhoeven Gr{oetje,eeti