Re: [PATCH v3 02/09] iommu/ipmmu-vmsa: Add optional root device feature

Hi Geert, On Wed, Mar 8, 2017 at 10:47 PM, Geert Uytterhoeven wrote: > Hi Magnus, > > On Wed, Mar 8, 2017 at 12:01 PM, Magnus Damm wrote: >> From: Magnus Damm >> >> Add root device handling to the IPMMU driver by allowing certain >> DT compat strings to enable

[PATCH v3 0/3] iommu/ipmmu-vmsa: r8a7796 support V3

Changes since V1: - Patch 1/3 updated with more Acked-by tags - Patch 2/3 updated with high I/O register range support Patch 1/3 is ready for upstream merge and includes the following tags: Signed-off-by: Magnus Damm Acked-by: Laurent Pinchart Acked-by: Rob Herring Acked-by: Simon Horman

[PATCH v3 1/3] iommu/ipmmu-vmsa: Add r8a7796 DT binding

From: Magnus Damm Update the IPMMU DT binding documentation to include the r8a7796 compat string for R-Car M3-W. Signed-off-by: Magnus Damm Acked-by: Laurent Pinchart Acked-by: Rob Herring Acked-by: Simon Horman Acked-by: Geert Uytterhoeven --- Changes since V2: - None Changes since

[PATCH v3 2/3] iommu/ipmmu-vmsa: Increase maximum micro-TLBS to 48

From: Magnus Damm Bump up the maximum numbers of micro-TLBS to 48. Each IPMMU device instance get micro-TLB assignment via the "iommus" property in DT. Older SoCs tend to use a maximum number of 32 micro-TLBs per IPMMU instance however newer SoCs such as r8a7796 make use of up to 48

[PATCH v3 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code

From: Magnus Damm Support the r8a7796 IPMMU by sharing feature flags between r8a7795 and r8a7796. Also update IOMMU_OF_DECLARE to hook up the updated compat string. Signed-off-by: Magnus Damm --- Changes since V2: - Updated to include white list suppport Changes since V1: - None

[PATCH 2/3] dmaengine: rcar-dmac: Slow mode prototype

From: Magnus Damm This experimental slow mode support code simply extends the MID/RID value to allow encoding a 4-bit value in bit 8-11 to specify the SLM bit value. With this value set the channel associated with the device will be processed slower by the hardware. The idea is that the slow

[PATCH 1/3] dmaengine: rcar-dmac: Priority handling prototype

From: Magnus Damm The priority handling uses MID/RID values to determine if channels below to RX or TX sides. The case of RX is unchanged and as low channel number as possible is used to ensure high priority. New with this code is that TX is allocated with highest channel number first to force

[PATCH 3/3] arm64: dts: r8a7795: Use slow mode for TX on SCIF2/DEBUG1

From: Magnus Damm Experimental code to enable slow mode on r8a7795 for SCIF2 TX. Not-Yet-Signed-off-by: Magnus Damm --- arch/arm64/boot/dts/renesas/r8a7795.dtsi |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 0001/arch/arm64/boot/dts/renesas/r8a7795.dtsi +++ work/arch/arm64

[PATCH 0/3] dmaengine: rcar-dmac: Priority and slow mode prototypes

patch These patches probably need a bit more effort to be beaten into shape for upstream merge. So simply treat these as experimental test code. Not-Yet-Signed-off-by: Magnus Damm --- Developed on top of renesas-drivers-2017-02-21-v4.10 arch/arm64/boot/dts/renesas/r8a7795.dtsi |2 drivers

[PATCH v7 05/07] iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA ops

From: Magnus Damm Introduce an alternative set of iommu_ops suitable for 64-bit ARM as well as 32-bit ARM when CONFIG_IOMMU_DMA=y. Also adjust the Kconfig to depend on ARM or IOMMU_DMA. Initialize the device from ->xlate() when CONFIG_IOMMU_DMA=y. Signed-off-by: Magnus Damm --- Changes si

[PATCH v7 02/07] iommu/ipmmu-vmsa: Rework interrupt code and use bitmap for context

From: Magnus Damm Introduce a bitmap for context handing and convert the interrupt routine to handle all registered contexts. At this point the number of contexts are still limited. Also remove the use of the ARM specific mapping variable from ipmmu_irq() to allow compile on ARM64. Signed-off

[PATCH v7 00/07] iommu/ipmmu-vmsa: IPMMU multi-arch update V7

ial series - Updated bitmap code locking and also used lighter bitop functions - Updated the Kconfig bits to apply on top of ARCH_RENESAS Signed-off-by: Magnus Damm --- Built on top v4.11-rc1: drivers/iommu/Kconfig |2 drivers/iommu/ipmmu-vmsa.c |

[PATCH v7 01/07] iommu/ipmmu-vmsa: Remove platform data handling

From: Magnus Damm The IPMMU driver is using DT these days, and platform data is no longer used by the driver. Remove unused code. Signed-off-by: Magnus Damm Reviewed-by: Laurent Pinchart Reviewed-by: Joerg Roedel --- Changes since V6: - None drivers/iommu/ipmmu-vmsa.c |5 - 1

[PATCH v7 03/07] iommu/ipmmu-vmsa: Break out utlb parsing code

From: Magnus Damm Break out the utlb parsing code and dev_data allocation into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm Reviewed-by: Joerg Roedel --- Changes since V6: - None drivers/iommu/ipmmu-vmsa.c | 58

[PATCH v7 07/07] iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency

From: Magnus Damm Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get rid of the dependency. Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using: # CONFIG_ARM_LPAE is not set Signed-off-by: Magnus Damm

[PATCH v7 06/07] iommu/ipmmu-vmsa: ARM and ARM64 archdata access

From: Magnus Damm Not all architectures have an iommu member in their archdata, so use #ifdefs support build with COMPILE_TEST on any architecture. Signed-off-by: Magnus Damm Reviewed-by: Joerg Roedel --- Changes since V6: - Updated patch to handle newly introduced functions in: [PATCH

[PATCH v7 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

From: Magnus Damm Break out the domain allocation code into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm Reviewed-by: Joerg Roedel --- Changes since V6: - None drivers/iommu/ipmmu-vmsa.c | 13 + 1 file changed, 9 insertions

[PATCH 0/3] iommu/ipmmu-vmsa: Initial r8a7796 support

) Micro-TLB assignment DT binding extension and change number 3 above are part of this patch series. Other changes will be part of DT integration code that will be submitted separately. Signed-off-by: Magnus Damm --- Developed on top of next-20160602 and: [PATCH v3 00/06] iommu/ipmmu-vmsa

[PATCH 1/3] iommu/ipmmu-vmsa: Add r8a7796 DT binding

From: Magnus Damm Update the IPMMU DT binding documentation to include the r8a7796 compat string for R-Car M3-W. Signed-off-by: Magnus Damm --- Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt |1 + 1 file changed, 1 insertion(+) --- 0001/Documentation/devicetree/bindings

[PATCH 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code

From: Magnus Damm Support the r8a7796 IPMMU by sharing feature flags between r8a7795 and r8a7796. Also update IOMMU_OF_DECLARE to hook up the updated compat string. Signed-off-by: Magnus Damm --- drivers/iommu/ipmmu-vmsa.c |9 +++-- 1 file changed, 7 insertions(+), 2 deletions

[PATCH 2/3] iommu/ipmmu-vmsa: Increase maximum micro-TLBS to 48

From: Magnus Damm Bump up the maximum numbers of micro-TLBS to 48. Each IPMMU device instance get micro-TLB assignment via the "iommus" property in DT. Older SoCs tend to use a maximum number of 32 micro-TLBd per IPMMU instance however newer SoCs such as r8a7796 make use of up to 48

[PATCH v4 01/07] iommu/ipmmu-vmsa: Remove platform data handling

From: Magnus Damm The IPMMU driver is using DT these days, and platform data is no longer used by the driver. Remove unused code. Signed-off-by: Magnus Damm Reviewed-by: Laurent Pinchart --- Changes since V3: - None Changes since V2: - None Changes since V1: - Added Reviewed-by from

[PATCH v4 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

From: Magnus Damm Break out the domain allocation code into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm --- Changes since V3: - None Changes since V2: - Included this new patch as-is from the following series: [PATCH 00/04] iommu/ipmmu

[PATCH v4 02/07] iommu/ipmmu-vmsa: Rework interrupt code and use bitmap for context

From: Magnus Damm Introduce a bitmap for context handing and convert the interrupt routine to handle all registered contexts. At this point the number of contexts are still limited. Also remove the use of the ARM specific mapping variable from ipmmu_irq() to allow compile on ARM64. Signed-off

[PATCH v4 06/07] iommu/ipmmu-vmsa: ARM and ARM64 archdata access

From: Magnus Damm Not all architectures have an iommu member in their archdata, so use #ifdefs support build wit COMPILE_TEST on any architecture. Signed-off-by: Magnus Damm --- Changes since V3: - New patch drivers/iommu/ipmmu-vmsa.c | 37 +++-- 1 file

[PATCH v4 07/07] iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency

From: Magnus Damm Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get rid of the dependency. Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using: # CONFIG_ARM_LPAE is not set Signed-off-by: Magnus Damm

[PATCH v4 05/07] iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA ops

From: Magnus Damm Introduce an alternative set of iommu_ops suitable for 64-bit ARM as well as 32-bit ARM when CONFIG_IOMMU_DMA=y. Signed-off-by: Magnus Damm --- Changes since V3: - Removed group parameter from ipmmu_init_platform_device() Changes since V2: - Included this new patch from

[PATCH v4 03/07] iommu/ipmmu-vmsa: Break out utlb parsing code

From: Magnus Damm Break out the utlb parsing code and dev_data allocation into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm --- Changes since V3: - Initialize "mmu" to NULL, check before accessing - Removed group para

[PATCH v4 00/07] iommu/ipmmu-vmsa: IPMMU multi-arch update V4

to include patch 3 of the V1 of this series Changes since V1: - Got rid of patch 2 and 3 from initial series - Updated bitmap code locking and also used lighter bitop functions - Updated the Kconfig bits to apply on top of ARCH_RENESAS Signed-off-by: Magnus Damm --- drivers/iommu/Kconfig

Re: [PATCH 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code

Hi Laurent, On Wed, Jun 8, 2016 at 9:18 AM, Laurent Pinchart wrote: > Hi Magnus, > > Thank you for the patch. > > On Tuesday 07 Jun 2016 12:39:45 Magnus Damm wrote: >> From: Magnus Damm >> >> Support the r8a7796 IPMMU by sharing feature flags between &g

Re: [PATCH 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code

Hi Geert, On Wed, Jun 8, 2016 at 4:04 PM, Geert Uytterhoeven wrote: > Hi Laurent, > > On Wed, Jun 8, 2016 at 2:18 AM, Laurent Pinchart > wrote: >>> --- 0031/drivers/iommu/ipmmu-vmsa.c >>> +++ work/drivers/iommu/ipmmu-vmsa.c 2016-06-06 11:19:40.210607110 +0900 >>> @@ -1074,7 +1074,7 @@ static c

Re: [PATCH 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code

Hi Laurent, On Wed, Jun 8, 2016 at 5:48 PM, Laurent Pinchart wrote: > Hi Geert, > > On Wednesday 08 Jun 2016 09:04:17 Geert Uytterhoeven wrote: >> On Wed, Jun 8, 2016 at 2:18 AM, Laurent Pinchart wrote: >> >> --- 0031/drivers/iommu/ipmmu-vmsa.c >> >> +++ work/drivers/iommu/ipmmu-vmsa.c 2016-06-

[PATCH v2 01/11] iommu/ipmmu-vmsa: Introduce features, break out alias

From: Magnus Damm Introduce struct ipmmu_features to track various hardware and software implementation changes inside the driver for different kinds of IPMMU hardware. Add use_ns_alias_offset as a first example of a feature to control if the secure register bank offset should be used or not

[PATCH v2 00/11] iommu/ipmmu-vmsa: r8a7795 support V2

4-bit ARM. Compared to V1 the patches have been reordered and multi context and iommu group code has been reworked. Now devices are grouped together based on the IPMMU they are connected to. For detail please see the change log in each individual patch. Signed-off-by: Magnus Damm --- Deve

[PATCH v2 04/11] iommu/ipmmu-vmsa: Reuse iommu groups

From: Magnus Damm Extend the IPMMU driver to group devices together based on the IPMMU device they are connected to. The slave devices are kept on a list which is used to determine if existing groups (and contexts) exist. With this patch the two SYS-DMAC devices using IPMMU-DS0 on r8a7795 will

[PATCH v2 05/11] iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE()

From: Magnus Damm Hook up IOMMU_OF_DECLARE() support in case CONFIG_IOMMU_DMA is enabled. The only current supported case for 32-bit ARM is disabled, however for 64-bit ARM this is required. Signed-off-by: Magnus Damm --- Changes since V1: - Reworked slightly to fit updated patch order and

[PATCH v2 02/11] iommu/ipmmu-vmsa: Add optional root device feature

From: Magnus Damm Add root device handling to the IPMMU driver by allowing certain DT compat strings to enable has_cache_leaf_nodes that in turn will support both root devices with interrupts and leaf devices that face the actual IPMMU consumer devices. Signed-off-by: Magnus Damm --- Changes

[PATCH v2 09/11] iommu/ipmmu-vmsa: Make IMBUSCTR setup optional

From: Magnus Damm Introduce a feature to allow opt-out of setting up IMBUSCR. The default case is unchanged. Signed-off-by: Magnus Damm --- Changes since V1: - Updated the commit message - Reworked patch to coexist with the multi context feature drivers/iommu/ipmmu-vmsa.c | 10

[PATCH v2 03/11] iommu/ipmmu-vmsa: Enable multi context support

From: Magnus Damm Add support for up to 8 contexts. Each context is mapped to one domain. One domain is associated with each device, however one or more uTLBs for a single device are kept in the same domain. Signed-off-by: Magnus Damm --- Changes since V1: - Support up to 8 contexts instead

[PATCH v2 10/11] iommu/ipmmu-vmsa: Allow two bit SL0

From: Magnus Damm Introduce support for two bit SL0 bitfield in IMTTBCR by using a separate feature flag. Signed-off-by: Magnus Damm --- Changes since V1: - None drivers/iommu/ipmmu-vmsa.c | 15 ++- 1 file changed, 14 insertions(+), 1 deletion(-) --- 0025/drivers/iommu

[PATCH v2 06/11] iommu/ipmmu-vmsa: Teach xlate() to skip disabled iommus

From: Magnus Damm The ->xlate() call gets invoked even though the iommu device has status = "disabled" in DT, so make sure we skip over disabled devices. In my mind it would make sense to have this at some shared level, but I guess some users may want to configure the iommu reg

[PATCH v2 11/11] iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code

From: Magnus Damm Tie in r8a7795 features and update the IOMMU_OF_DECLARE compat string to hook up the updated compat string. TODO: - Go over init order once more - Consider counting number of IPMMU devices from ->xlate() - Experiment with delaying call to bus_set_iommu() Signed-off

[PATCH v2 07/11] iommu/ipmmu-vmsa: IPMMU device is 64-bit bus master

From: Magnus Damm The r8a7795 IPMMU supports 64-bit bus mastering. Both the coherent DMA mask and the streaming DMA mask are set to unlock the 64-bit address space for coherent allocations and streaming operations. Signed-off-by: Magnus Damm --- Changes since V1: - Updated the commit

[PATCH v2 08/11] iommu/ipmmu-vmsa: Write IMCTR twice

From: Magnus Damm Write IMCTR both in the root device and the leaf node. Signed-off-by: Magnus Damm --- Changes since V1: - None drivers/iommu/ipmmu-vmsa.c | 17 ++--- 1 file changed, 14 insertions(+), 3 deletions(-) --- 0021/drivers/iommu/ipmmu-vmsa.c +++ work/drivers

[PATCH v4 02/06] devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings

From: Magnus Damm Add documentation for new separate CMT0 and CMT1 DT compatible strings for R-Car Gen2. These compat strings allow us to enable CMT1-specific features in the driver. The old compat strings will be deprecated in the not so distant future. Signed-off-by: Magnus Damm Acked-by

[PATCH v4 06/06] devicetree: bindings: Remove deprecated properties

From: Magnus Damm The deprecated DT properties are part of the GIT history, no need to keep them around any longer. Signed-off-by: Magnus Damm Acked-by: Rob Herring Acked-by: Geert Uytterhoeven --- Changes since V3: - None Changes since V2: - Added Acked-by from Rob - Fixed properties

[PATCH v4 05/06] devicetree: bindings: Remove unused 32-bit CMT bindings

From: Magnus Damm Remove the 32-bit CMT compat strings to reduce maintenance burden. It should be fine to break DT compatibility because the 32-bit 32-bit CMT DT binding was never part of any upstream DTS file. Signed-off-by: Magnus Damm Acked-by: Rob Herring Acked-by: Geert Uytterhoeven

[PATCH v4 03/06] devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings

From: Magnus Damm Update SoC-specific bindings for r8a73a4 and R-Car Gen2 CMT0 and CMT1. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven Acked-by: Laurent Pinchart Acked-by: Rob Herring --- Changes since V3: - Fix trailing whitespace damage Changes since V2: - Added Acked-by

[PATCH v4 00/06] clocksource: sh_cmt: DT binding rework V4

format based on feedback. This new order makes the CMT match the majority of the other on-chip devices, so "renesas,rcar-gen2-cmt0" is now used over earlier version "renesas,cmt0-rcar-gen2". The acks have been kept as-is. Many thanks to Geert, Laurent and Rob for their feedback!

[PATCH v4 01/06] devicetree: bindings: Remove sh7372 CMT binding

From: Magnus Damm Remove the sh7372 CMT compat string to reduce maintenance burden. It should be fine to break DT compatibility because: 1) The sh7372 SoC support has been removed from upstream 2) The sh7372 CMT DT binding was never part of upstream DTS 3) The CMT driver never matches on the

[PATCH v4 04/06] devicetree: bindings: Deprecate property, update example

From: Magnus Damm Deprecate "renesas,channels-mask" and update the r8a7790 CMT example. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven Acked-by: Laurent Pinchart Acked-by: Rob Herring --- Changes since V3: - Update example to use new compat string format for fallba

Re: [PATCH v4 05/06] devicetree: bindings: Remove unused 32-bit CMT bindings

Hi Sergei, On Tue, Mar 15, 2016 at 2:21 AM, Sergei Shtylyov wrote: > Hello. > > On 03/14/2016 05:24 PM, Magnus Damm wrote: > >> From: Magnus Damm >> >> Remove the 32-bit CMT compat strings to reduce maintenance burden. >> >> It should be fine to break

Re: [PATCH 04/06] iommu/ipmmu-vmsa: Rework interrupt code and use bitmap for context

Hi Laurent, On Tue, Dec 29, 2015 at 9:14 AM, Laurent Pinchart wrote: > Hi Magnus, > > Thank you for the patch. Thanks for your feedback! > On Tuesday 15 December 2015 21:02:49 Magnus Damm wrote: >> From: Magnus Damm >> >> Introduce a bitmap for context handin

[PATCH 01/10] iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE()

From: Magnus Damm Hook up IOMMU_OF_DECLARE() support in case CONFIG_IOMMU_DMA is enabled. The only current supported case for 32-bit ARM is disabled, however for 64-bit ARM this is required. Signed-off-by: Magnus Damm --- drivers/iommu/ipmmu-vmsa.c | 31 +++ 1

[PATCH v2 00/02] irqchip: renesas-irqc: r8a7795 and generic chip update V2

. Also the DT documentation is extended with r8a7795 support. Signed-off-by: Magnus Damm --- Written against v4.3-rc3, thanks to Geert and Tglx for their help! Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt |1 drivers/irqchip/Kconfig

[PATCH v2 01/02] irqchip: renesas-irqc: Add r8a7795 INTC-EX DT documentation

From: Magnus Damm For some reason the name of the external interrupt controller has changed name with r8a7795, so use "intc-ex" instead of "irqc" as r8a7795 compat string to follow the friendly documentation. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven --

[PATCH v2 02/02] irqchip: renesas-irqc: Move over to nested generic chip

From: Magnus Damm Convert the IRQC driver to rely on GENERIC_IRQ_CHIP and set IRQ_GC_INIT_NESTED_LOCK to enable nested locking. Signed-off-by: Magnus Damm --- Changes since V1: - rebased on top of v4.3-rc3 - folded in the IRQ_GC_INIT_NESTED_LOCK bits drivers/irqchip/Kconfig

Re: [PATCH 00/03] irqchip: renesas-irqc: r8a7795 and generic chip update

Hi Thomas, On Tue, Sep 22, 2015 at 7:56 PM, Thomas Gleixner wrote: > On Thu, 17 Sep 2015, Geert Uytterhoeven wrote: >> On Thu, Sep 17, 2015 at 9:57 AM, Simon Horman wrote: >> > On Thu, Sep 17, 2015 at 04:12:30PM +0900, Magnus Damm wrote: >> >> irqchip: renesas-

[PATCH 00/03] irqchip: renesas-irqc: r8a7795 and generic chip update

chip support including nested locking. Also the DT documentation is extended with r8a7795 support. Signed-off-by: Magnus Damm --- Written against renesas-drivers-2015-09-08-v4.2 Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt |1 drivers/irqchip/Kconfig

[PATCH 01/03] irqchip: renesas-irqc: Add r8a7795 IRQC DT documentation

From: Magnus Damm Add r8a7795 to the IRQC DT binding document. Signed-off-by: Magnus Damm --- Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt |1 + 1 file changed, 1 insertion(+) --- 0001/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt

[PATCH 02/03] irqchip: renesas-irqc: Move over to generic chip

From: Magnus Damm Convert the IRQC driver to rely on GENERIC_IRQ_CHIP. Signed-off-by: Magnus Damm --- drivers/irqchip/Kconfig|1 drivers/irqchip/irq-renesas-irqc.c | 79 +--- 2 files changed, 31 insertions(+), 49 deletions(-) --- 0001

[PATCH 03/03] irqchip: renesas-irqc: Enable nested lock

From: Magnus Damm Update the IRQC driver to pass the IRQ_GC_INIT_NESTED_LOCK flag to enable nested locking using the generic irq chip implementation. Signed-off-by: Magnus Damm --- drivers/irqchip/irq-renesas-irqc.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 0005/drivers

[PATCH v2 00/11] clocksource: sh_cmt: DT binding rework V2

atch 1-2 and adds patches 9, 10, 11. Patch 9 and 10 cleans up r8a7740 and sh73a0 bindings. Patch 11 removes deprecated properties as proposed by Laurent. Many thanks to Geert and Laurent for feedback! Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven (For patch 1-8) Tested-by: Geert Uytterh

[PATCH v2 01/11] devicetree: bindings: Remove sh7372 CMT binding

From: Magnus Damm Remove the sh7372 CMT compat string to reduce maintenance burden. It should be fine to break DT compatibility because: 1) The sh7372 SoC support has been removed from upstream 2) The sh7372 CMT DT binding was never part of upstream DTS 3) The CMT driver never matches on the

[PATCH v2 02/11] clocksource: sh_cmt: Use 0x3f mask for SH_CMT_48BIT case

From: Magnus Damm Always use 0x3f as channel mask for the SH_CMT_48BIT type of devices. Once this patch is applied the "renesas,channels-mask" property will be ignored by the driver for older devices matching SH_CMT_48BIT. In the future when all CMT types store channel mask in the driv

[PATCH v2 03/11] devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings

From: Magnus Damm Add documentation for new separate CMT0 and CMT1 DT compatible strings for R-Car Gen2. These compat strings allow us to enable CMT1-specific features in the driver. The old compat strings will be deprecated in the not so distant future. Signed-off-by: Magnus Damm Acked-by

[PATCH v2 04/11] clocksource: sh_cmt: Support separate R-Car Gen2 CMT0/1

From: Magnus Damm Add support for the new R-Car Gen2 CMT0 and CMT1 bindings. Support for the old DT binding is still kept around, however devices using such binding will be treated as a low-feature CMT0 device. If users want to make use of CMT1-specific features then they need to update their

[PATCH v2 06/11] ARM: shmobile: Update CMT compat string users in DTS

From: Magnus Damm Use recently updated r8a73a4 and R-Car Gen2 CMT0 and CMT1 compat strings. With this change in place we can keep device-specific configuration in the driver and the driver can be able to support CMT1 specific features. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven

[PATCH v2 05/11] devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings

From: Magnus Damm Update SoC-specific bindings for r8a73a4 and R-Car Gen2 CMT0 and CMT1. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Acked-by: Laurent Pinchart --- Changes since V1: - Added Acked-by and Tested-by from Geert - Added Acked-by from

[PATCH v2 10/11] clocksource: sh_cmt: Remove unused 32-bit CMT bindings

From: Magnus Damm Remove the 32-bit CMT compat strings to reduce maintenance burden. It should be fine to break DT compatibility because the 32-bit 32-bit CMT DT binding was never part of any upstream DTS file. Signed-off-by: Magnus Damm --- Changes since V1: - New patch drivers

[PATCH v2 07/11] devicetree: bindings: Deprecate property, update example

From: Magnus Damm Deprecate "renesas,channels-mask" and update the r8a7790 CMT example. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Acked-by: Laurent Pinchart --- Changes since V1: - Added Acked-by and Tested-by from Geert - Added Ack

[PATCH v2 11/11] devicetree: bindings: Remove deprecated properties

From: Magnus Damm The deprecated DT properies are part of the GIT history, no need to keep them around any longer. Signed-off-by: Magnus Damm --- Changes since V1: - New patch Documentation/devicetree/bindings/timer/renesas,cmt.txt |4 1 file changed, 4 deletions(-) --- 0011

[PATCH v2 09/11] devicetree: bindings: Remove unused 32-bit CMT bindings

From: Magnus Damm Remove the 32-bit CMT compat strings to reduce maintenance burden. It should be fine to break DT compatibility because the 32-bit 32-bit CMT DT binding was never part of any upstream DTS file. Signed-off-by: Magnus Damm --- Changes since V1: - New patch Documentation

[PATCH v2 08/11] ARM: shmobile: Remove CMT renesas,channels-mask from DTS

From: Magnus Damm Update the DTS to remove the now deprecated "renesas,channels-mask" property. The channel information is now kept in the device driver and can easily be determined based on the compat string. Signed-off-by: Magnus Damm Acked-by: Geert Uytterhoeven Tested

Re: [PATCH v2 11/11] devicetree: bindings: Remove deprecated properties

Hi Geert, On Thu, Sep 17, 2015 at 7:04 PM, Geert Uytterhoeven wrote: > On Thu, Sep 17, 2015 at 11:55 AM, Magnus Damm wrote: >> From: Magnus Damm >> >> The deprecated DT properies are part of the GIT history, > > properties Oops! >> no need to keep them around

Re: [PATCH v2 09/11] devicetree: bindings: Remove unused 32-bit CMT bindings

Hi Sergei, On Thu, Sep 17, 2015 at 9:14 PM, Sergei Shtylyov wrote: > Hello. > > On 9/17/2015 12:54 PM, Magnus Damm wrote: > >> From: Magnus Damm >> >> Remove the 32-bit CMT compat strings to reduce maintenance burden. >> >> It should be fine to break

Re: Possible regression due to "tick: broadcast: Prevent livelock from event handler"

Hi Wolfram, Thanks for investigating this. On Sat, Jul 4, 2015 at 12:09 AM, Wolfram Sang wrote: > >> Ok. So it's unrelated to deep idle states. Any chance of poking with >> JTAG at the frozen box? If not, are there GPIOs which you could use to >> monitor certain state? > > No JTAGger here at the

Re: Possible regression due to "tick: broadcast: Prevent livelock from event handler"

Hi Geert, On Sat, Jul 4, 2015 at 2:02 AM, Geert Uytterhoeven wrote: > Hi Wolfram, > > On Fri, Jul 3, 2015 at 4:37 PM, Wolfram Sang wrote: >>> So this is a single core machine and uses the em_sti timer w/o the >>> broadcast nonsense. In Simons case it looks like em_sti is used as >>> broadcast de

[PATCH] iommu/ipmmu-vmsa: Fix pgsize_bitmap semicolon typo

From: Magnus Damm Fix comman-instead-of-semicolon typo error present in the latest version of the IPMMU driver. Will in the future be rolled into next driver update. Signed-off-by: Magnus Damm --- Applies on top of renesas-drivers-2017-04-18-v4.11-rc7 or -next plus: [PATCH v7 00/07] iommu

Re: [PATCH v8 06/08] iommu/ipmmu-vmsa: Use fwspec iommu_priv on ARM64

Hi Robin, On Wed, May 17, 2017 at 11:29 PM, Robin Murphy wrote: > Hi Magnus, > > On 17/05/17 11:07, Magnus Damm wrote: >> From: Magnus Damm >> >> Convert from archdata to iommu_priv via iommu_fwspec on ARM64 but >> let 32-bit ARM keep on using archdata for no

[PATCH v2 00/05] iommu/ipmmu-vmsa: 32-bit ARM update V2

ted-by: Robin Murphy (Patch 2 and 4) Signed-off-by: Robin Murphy (Patch 3 and 5) Signed-off-by: Magnus Damm --- Changes since V1: - Minor changes to patch 1 and 2 - thanks Robin and Geert! - Added patch 5 to include further clean ups Developed on top of v4.13-rc1 drivers/iommu/ipmmu-vms

[PATCH v2 01/05] iommu/ipmmu-vmsa: Use iommu_device_register()/unregister()

From: Magnus Damm Extend the driver to make use of iommu_device_register()/unregister() functions together with iommu_device_set_ops() and iommu_set_fwnode(). These used to be part of the earlier posted 64-bit ARM (r8a7795) series but it turns out that these days they are required on 32-bit ARM

[PATCH v2 02/05] iommu/ipmmu-vmsa: Consistent ->of_xlate() handling

From: Magnus Damm The 32-bit ARM code gets updated to make use of ->of_xlate() and the code is shared between 64-bit and 32-bit ARM. The of_device_is_available() check gets dropped since it is included in of_iommu_xlate(). Suggested-by: Robin Murphy Signed-off-by: Magnus Damm --- Chan

[PATCH v2 05/05] iommu/ipmmu-vmsa: Clean up device tracking

Signed-off-by: Magnus Damm --- Change since V1: - New patch drivers/iommu/ipmmu-vmsa.c | 12 1 file changed, 12 deletions(-) --- 0008/drivers/iommu/ipmmu-vmsa.c +++ work/drivers/iommu/ipmmu-vmsa.c 2017-07-17 21:35:26.690607110 +0900 @@ -37,7 +37,6 @@ struct ipmmu_vmsa_device

[PATCH v2 04/05] iommu/ipmmu-vmsa: Replace local utlb code with fwspec ids

From: Magnus Damm Now when both 32-bit and 64-bit code inside the driver is using fwspec it is possible to replace the utlb handling with fwspec ids that get populated from ->of_xlate(). Suggested-by: Robin Murphy Signed-off-by: Magnus Damm --- Changes since V1: - Rebased to apply on

[PATCH v2 03/05] iommu/ipmmu-vmsa: Use fwspec on both 32 and 64-bit ARM

-by: Magnus Damm --- Changes since V1: - Rebased to apply on top of earlier changes in series drivers/iommu/ipmmu-vmsa.c | 21 +++-- 1 file changed, 3 insertions(+), 18 deletions(-) --- 0004/drivers/iommu/ipmmu-vmsa.c +++ work/drivers/iommu/ipmmu-vmsa.c 2017-07-17 21:04

[PATCH] iommu/ipmmu-vmsa: Use iommu_device_sysfs_add()/remove()

From: Magnus Damm Extend the driver to make use of iommu_device_sysfs_add()/remove() functions to hook up initial sysfs support. Suggested-by: Joerg Roedel Signed-off-by: Magnus Damm --- Applies on top of next-20170817 drivers/iommu/ipmmu-vmsa.c |6 ++ 1 file changed, 6 insertions

[PATCH v8 00/08] iommu/ipmmu-vmsa: IPMMU multi-arch update V8

ial series - Updated bitmap code locking and also used lighter bitop functions - Updated the Kconfig bits to apply on top of ARCH_RENESAS Signed-off-by: Magnus Damm --- Developed on top of a95cfad (v4.12-rc1 + fixes): Compile tested on 32-bit and 64-bit ARM Run time tested on 64-bit ARM r8a7

[PATCH v8 03/08] iommu/ipmmu-vmsa: Break out utlb parsing code

From: Magnus Damm Break out the utlb parsing code and dev_data allocation into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm Reviewed-by: Joerg Roedel --- Changes since V7: - Free archdata and utlbs in case of error drivers/iommu/ipmmu

[PATCH v8 04/08] iommu/ipmmu-vmsa: Break out domain allocation code

From: Magnus Damm Break out the domain allocation code into a separate function. This is preparation for future code sharing. Signed-off-by: Magnus Damm Reviewed-by: Joerg Roedel Reviewed-by: Geert Uytterhoeven --- Changes since V7: - Added Reviewed-by from Geert - Thanks! drivers

[PATCH v8 02/08] iommu/ipmmu-vmsa: Rework interrupt code and use bitmap for context

From: Magnus Damm Introduce a bitmap for context handing and convert the interrupt routine to handle all registered contexts. At this point the number of contexts are still limited. Also remove the use of the ARM specific mapping variable from ipmmu_irq() to allow compile on ARM64. Signed-off

[PATCH v8 01/08] iommu/ipmmu-vmsa: Remove platform data handling

From: Magnus Damm The IPMMU driver is using DT these days, and platform data is no longer used by the driver. Remove unused code. Signed-off-by: Magnus Damm Reviewed-by: Laurent Pinchart Reviewed-by: Joerg Roedel Reviewed-by: Geert Uytterhoeven --- Changes since V7: - Added Reviewed-by

[PATCH v8 05/08] iommu/ipmmu-vmsa: Add new IOMMU_DOMAIN_DMA ops

From: Magnus Damm Introduce an alternative set of iommu_ops suitable for 64-bit ARM as well as 32-bit ARM when CONFIG_IOMMU_DMA=y. Also adjust the Kconfig to depend on ARM or IOMMU_DMA. Initialize the device from ->xlate() when CONFIG_IOMMU_DMA=y. Signed-off-by: Magnus Damm --- Changes si

[PATCH v8 06/08] iommu/ipmmu-vmsa: Use fwspec iommu_priv on ARM64

From: Magnus Damm Convert from archdata to iommu_priv via iommu_fwspec on ARM64 but let 32-bit ARM keep on using archdata for now. Once the 32-bit ARM code and the IPMMU driver is able to move over to CONFIG_IOMMU_DMA=y then coverting to fwspec via ->of_xlate() will be easy. For now fwspec

[PATCH v8 07/08] iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency

From: Magnus Damm Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get rid of the dependency. Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using: # CONFIG_ARM_LPAE is not set Signed-off-by: Magnus Damm

[PATCH v8 08/08] iommu/ipmmu-vmsa: Fix pgsize_bitmap semicolon typo

From: Magnus Damm Fix comma-instead-of-semicolon typo error present in the latest version of the IPMMU driver. Signed-off-by: Magnus Damm --- Earlier posted as: [PATCH] iommu/ipmmu-vmsa: Fix pgsize_bitmap semicolon typo drivers/iommu/ipmmu-vmsa.c |2 +- 1 file changed, 1 insertion

[PATCH] via-rhine: add support for changing MTU

From: Magnus Damm Allow adjusting the MTU for via-rhine devices in case of no TX alignment buffer is used. Lightly tested on ALIX2D13 hardware by making use of VXLAN with MTU set to 1500 on top of via-rhine devices with 1550 MTU. Without this patch the VXLAN MTU is limited to less than 1500

Re: [PATCH] via-rhine: add support for changing MTU

On Wed, Jun 14, 2017 at 6:33 AM, David Miller wrote: > From: Magnus Damm > Date: Wed, 14 Jun 2017 02:18:27 +0900 > >> From: Magnus Damm >> >> Allow adjusting the MTU for via-rhine devices in case of no TX alignment >> buffer is used. >> >> Lightly

[PATCH] net: update undefined ->ndo_change_mtu() comment

From: Magnus Damm Update ->ndo_change_mtu() callback comment to remove text about returning error in case of undefined callback. This change makes the comment match the existing code behavior. Signed-off-by: Magnus Damm --- Applies on top of next-20170613 include/linux/netdevice.h |

[PATCH 00/04] iommu/ipmmu-vmsa: 32-bit ARM update

h 3) Signed-off-by: Magnus Damm --- Developed on renesas-drivers-2017-06-13-v4.12-rc5 and rebased to next-20170614 drivers/iommu/ipmmu-vmsa.c | 186 +++- 1 file changed, 49 insertions(+), 137 deletions(-)

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