Re: [PATCH] iommu/tegra-smmu: Fix mc errors on tegra124-nyan

03.03.2021 12:47, Dmitry Osipenko пишет: > 03.03.2021 02:08, Nicolin Chen пишет: >> On Sat, Feb 27, 2021 at 12:59:17PM +0300, Dmitry Osipenko wrote: >>> 25.02.2021 09:27, Nicolin Chen пишет: >>> ... > The partially revert should be okay, but it's not clear to me what makes > difference for

Re: [PATCH] iommu/tegra-smmu: Fix mc errors on tegra124-nyan

28.03.2021 18:25, Dmitry Osipenko пишет: > 03.03.2021 12:47, Dmitry Osipenko пишет: >> 03.03.2021 02:08, Nicolin Chen пишет: >>> On Sat, Feb 27, 2021 at 12:59:17PM +0300, Dmitry Osipenko wrote: 25.02.2021 09:27, Nicolin Chen пишет: ... >> The partially revert should be okay, but it's

[PATCH v1 2/2] iommu/tegra-smmu: Revert workaround that was needed for Nyan Big Chromebook

The previous commit fixes problem where display client was attaching too early to IOMMU during kernel boot in a multi-platform kernel configuration which enables CONFIG_ARM_DMA_USE_IOMMU=y. The workaround that helped to defer the IOMMU attachment for Nyan Big Chromebook isn't needed anymore,

[PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients

All consumer-grade Android and Chromebook devices show a splash screen on boot and then display is left enabled when kernel is booted. This behaviour is unacceptable in a case of implicit IOMMU domains to which devices are attached during kernel boot since devices, like display controller, may

Re: [PATCH 00/30] DMA: Mundane typo fixes

On 07:29 Mon 29 Mar 2021, Christoph Hellwig wrote: I really don't think these typo patchbomb are that useful. I'm all for fixing typos when working with a subsystem, but I'm not sure these patchbombs help anything. I am sure you are holding the wrong end of the wand and grossly failing to

Re: [PATCH 00/30] DMA: Mundane typo fixes

I really don't think these typo patchbomb are that useful. I'm all for fixing typos when working with a subsystem, but I'm not sure these patchbombs help anything. On Mon, Mar 29, 2021 at 05:22:56AM +0530, Bhaskar Chowdhury wrote: > This patch series fixes some trivial and rudimentary spellings

[PATCH 12/30] of-dma.c: Fixed a typo

s/propety/properly/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/of-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c index ec00b20ae8e4..e028acff7fe8 100644 --- a/drivers/dma/of-dma.c +++ b/drivers/dma/of-dma.c @@ -337,7

[PATCH 13/30] s3c24xx-dma.c: Fix a typo

s/transfered/transferred/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/s3c24xx-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c index 8e14c72d03f0..c98ae73cdcc3 100644 --- a/drivers/dma/s3c24xx-dma.c +++

[PATCH 05/30] bcm2835-dma.c: Fix a typo

s/missmatch/mismatch/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/bcm2835-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 630dfbb01a40..e6baf17b0434 100644 --- a/drivers/dma/bcm2835-dma.c +++

[PATCH 30/30] xilinx_dma.c: Fix a typo

s/interace/interface/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/xilinx/xilinx_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index 3aded7861fef..63d2f447ad79 100644 ---

[PATCH 21/30] owl-dma.c: Fix a typo

s/Eventhough/"Even though"/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/owl-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/owl-dma.c b/drivers/dma/owl-dma.c index 1f0bbaed4643..3c7283afa443 100644 --- a/drivers/dma/owl-dma.c +++

[PATCH 22/30] at_hdmac_regs.h: Couple of typo fixes

s/availlable/available/ s/signle/single/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/at_hdmac_regs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h index 4d1ebc040031..46ecc40edaa8 100644 ---

[PATCH 23/30] dma-jz4780.c: Fix a typo

s/proceeed/proceed/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/dma-jz4780.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index ebee94dbd630..451bc754b609 100644 --- a/drivers/dma/dma-jz4780.c +++

[PATCH 14/30] Revert "s3c24xx-dma.c: Fix a typo"

s/transferred/transfered/ This reverts commit a2ddb8aea8106bd5552f8516ad7a8a26b9282a8f. --- drivers/dma/s3c24xx-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c index c98ae73cdcc3..8e14c72d03f0 100644 ---

[PATCH 27/30] dpaa2-qdma.c: Fix a typo

s/contoller/controller/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/sh/shdmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c index 5aafe548ca5f..7b51b15b45b1 100644 --- a/drivers/dma/sh/shdmac.c +++

[PATCH 25/30] ste_dma40.c: Few spello fixes

s/ealier/earlier/ s/orignal/original/ s/manouver/maneuver/ s/transfer/transfer/ s/succees/success/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/ste_dma40.c | 10 +- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index

[PATCH 28/30] usb-dmac.c: Fix a typo

s/descritpor/descriptor/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/sh/usb-dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c index 8f7ceb698226..7092a657932b 100644 --- a/drivers/dma/sh/usb-dmac.c +++

[PATCH 11/30] nbpfaxi.c: Fixed a typo

s/superflous/superfluous/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/nbpfaxi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c index 9c52c57919c6..9eacaa20ddb3 100644 --- a/drivers/dma/nbpfaxi.c +++ b/drivers/dma/nbpfaxi.c

[PATCH 15/30] s3c24xx-dma.c: Few typos fixed

s/transfered/transferred/ s/desintation/destination/ ...two different places. Signed-off-by: Bhaskar Chowdhury --- drivers/dma/s3c24xx-dma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c index

[PATCH 29/30] edma.c: Fix a typo

s/transfering/transferring/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/ti/edma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index 35d81bd857f1..5ad771e34457 100644 --- a/drivers/dma/ti/edma.c +++

[PATCH 24/30] Kconfig: Change Synopsys to Synopsis

s/Synopsys/Synopsis/ .two different places. ..and for some unknown reason it introduce a empty line deleted and added back. Signed-off-by: Bhaskar Chowdhury --- drivers/dma/Kconfig | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma/Kconfig

[PATCH 17/30] ste_dma40_ll.h: Fix a typo

s/directy/directly/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/ste_dma40_ll.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h index c504e855eb02..2e30e9a94a1e 100644 --- a/drivers/dma/ste_dma40_ll.h +++

[PATCH 26/30] dw-axi-dmac-platform.c: Few typos fixed

s/configurarion/configuration/ s/inerrupts/interrupts/ s/chanels/channels/ two different places. s/Synopsys/Synopsis/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git

[PATCH 07/30] iop-adma.c: Few typos fixed

s/asynchrounous/asynchronous/ s/depedency/dependency/ s/capabilites/capabilities/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/iop-adma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index

[PATCH 03/30] amba-pl08x.c: Fixed couple of typos

s/busses/buses/ s/accound/account/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/amba-pl08x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index a24882ba3764..d15182634789 100644 --- a/drivers/dma/amba-pl08x.c

[PATCH 08/30] mv_xor.c: Fix a typo

s/capabilites/capabilities/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/mv_xor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index 23b232b57518..a43388b6a30d 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@

[PATCH 06/30] idma64.c: Fix couple of typos

s/transfered/transferred/ ...two different places Signed-off-by: Bhaskar Chowdhury --- drivers/dma/idma64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index f4c07ad3be15..3d0d48b12e28 100644 --- a/drivers/dma/idma64.c +++

[PATCH 04/30] bcm-sba-raid.c: Few typos fixed

s/Maibox/Mailbox/ s/alloced/allocated/ s/atleast/"at least"/ s/parallely/parallel/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/bcm-sba-raid.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c index

[PATCH 09/30] mv_xor.h: Fixed a typo

s/writen/written/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/mv_xor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index d86086b05b0e..c87cefd38a07 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -99,7

[PATCH 10/30] mv_xor_v2.c: Fix a typo

s/assosiated/associated/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/mv_xor_v2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c index 9b0d463f89bb..8a45861299a0 100644 --- a/drivers/dma/mv_xor_v2.c +++

[PATCH 16/30] st_fdma.h: Fix couple of typos

s/transfert/transfer/ ...two different places. Signed-off-by: Bhaskar Chowdhury --- drivers/dma/st_fdma.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/st_fdma.h b/drivers/dma/st_fdma.h index fa15b97a3bab..702b21021124 100644 --- a/drivers/dma/st_fdma.h

[PATCH 19/30] xgene-dma.c: Few spello fixes

s/definations/definitions/ two different places. s/Configue/Configure/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/xgene-dma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/xgene-dma.c b/drivers/dma/xgene-dma.c index 3589b4ef50b8..9b0010b6e033

[PATCH 18/30] tegra20-apb-dma.c: Fixed a typo

s/programing/programming/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/tegra20-apb-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 71827d9b0aa1..e64789432587 100644 ---

[PATCH 20/30] at_hdmac.c: Quite a few spello fixes

s/tranfers/transfers/ s/maxium/maximum/ s/previouly/previously/ s/broked/broken/ s/embedds/embeds/ three different places. Signed-off-by: Bhaskar Chowdhury --- drivers/dma/at_hdmac.c | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/dma/at_hdmac.c

[PATCH 00/30] DMA: Mundane typo fixes

This patch series fixes some trivial and rudimentary spellings in the COMMENT sections. Bhaskar Chowdhury (30): acpi-dma.c: Fix couple of typos altera-msgdma.c: Couple of typos fixed amba-pl08x.c: Fixed couple of typos bcm-sba-raid.c: Few typos fixed bcm2835-dma.c: Fix a typo

[PATCH 01/30] acpi-dma.c: Fix couple of typos

s/exctract/extract/ s/avaiable/available/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/acpi-dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c index 235f1396f968..4b1d5183bf64 100644 --- a/drivers/dma/acpi-dma.c

[PATCH 02/30] altera-msgdma.c: Couple of typos fixed

s/assosiated/associated/ s/oder/order/ Signed-off-by: Bhaskar Chowdhury --- drivers/dma/altera-msgdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c index 9a841ce5f0c5..c3483bf2aaa7 100644 ---

Re: [PATCH v2 2/3] dt-bindings: iommu: add DART iommu bindings

On Sun, Mar 28, 2021, at 10:16, Arnd Bergmann wrote: > On Sun, Mar 28, 2021 at 9:40 AM Sven Peter wrote: > > I noticed only one detail here: > > > + - |+ > > +dart2a: dart2a@82f0 { > > + compatible = "apple,t8103-dart"; > > + reg = <0x82f0 0x4000>; > > +

[PATCH v2 0/3] Apple M1 DART IOMMU driver

Hi, Here's v2 of my Apple M1 DART IOMMU driver series as a follow up to the original version [1]. Short summary: this series adds support for the iommu found in Apple's new M1 SoC which is required to use DMA on most peripherals. So far this code has been tested with dwc3 in host and device mode

[PATCH v2 1/3] iommu: io-pgtable: add DART pagetable format

Apple's DART iommu uses a pagetable format that shares some similarities with the ones already implemented by io-pgtable.c. Add a new format variant to support the required differences so that we don't have to duplicate the pagetable handling code. Signed-off-by: Sven Peter ---

[PATCH v2 2/3] dt-bindings: iommu: add DART iommu bindings

DART (Device Address Resolution Table) is the iommu found on Apple ARM SoCs such as the M1. Signed-off-by: Sven Peter --- .../devicetree/bindings/iommu/apple,dart.yaml | 81 +++ MAINTAINERS | 6 ++ 2 files changed, 87 insertions(+) create mode

[PATCH v2 3/3] iommu: dart: Add DART iommu driver

Apple's new SoCs use iommus for almost all peripherals. These Device Address Resolution Tables must be setup before these peripherals can act as DMA masters. Signed-off-by: Sven Peter --- MAINTAINERS | 1 + drivers/iommu/Kconfig| 14 + drivers/iommu/Makefile

Re: [PATCH v2 2/3] dt-bindings: iommu: add DART iommu bindings

On Sun, Mar 28, 2021 at 9:40 AM Sven Peter wrote: I noticed only one detail here: > + - |+ > +dart2a: dart2a@82f0 { > + compatible = "apple,t8103-dart"; > + reg = <0x82f0 0x4000>; > + interrupts = <1 781 4>; > + #iommu-cells = <1>; > +}; The name of the