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* Merge tag 'dmaengine-6.7-rc1' of ↵Linus Torvalds2023-11-041-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: - Big pile of __counted_by attribute annotations to several structures for bounds checking of flexible arrays at run-time - Another big pile platform remove callback returning void changes - Device tree device_get_match_data() usage and dropping of_match_device() calls - Minor driver updates to pxa, idxd fsl, hisi etc drivers * tag 'dmaengine-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (106 commits) dmaengine: stm32-mdma: correct desc prep when channel running dmaengine: dw-axi-dmac: Add support DMAX_NUM_CHANNELS > 16 dmaengine: xilinx: xilinx_dma: Fix kernel doc about xilinx_dma_remove() dmaengine: mmp_tdma: drop unused variable 'of_id' MAINTAINERS: Add entries for NXP(Freescale) eDMA drivers dmaengine: xilinx: xdma: Support cyclic transfers dmaengine: xilinx: xdma: Prepare the introduction of cyclic transfers dmaengine: Drop unnecessary of_match_device() calls dmaengine: Use device_get_match_data() dmaengine: pxa_dma: Annotate struct pxad_desc_sw with __counted_by dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() dmaengine: xilinx: xdma: Use resource_size() in xdma_probe() dmaengine: fsl-dpaa2-qdma: Remove redundant initialization owner in dpaa2_qdma_driver dmaengine: Remove unused declaration dma_chan_cleanup() dmaengine: mmp: fix Wvoid-pointer-to-enum-cast warning dmaengine: qcom: fix Wvoid-pointer-to-enum-cast warning dmaengine: fsl-edma: Remove redundant dev_err() for platform_get_irq() dmaengine: ep93xx_dma: Annotate struct ep93xx_dma_engine with __counted_by dmaengine: idxd: add wq driver name support for accel-config user tool dmaengine: fsl-edma: Annotate struct struct fsl_edma_engine with __counted_by ...
| * dmaengine: fsl-edma: Annotate struct struct fsl_edma_engine with __counted_byKees Cook2023-10-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct struct fsl_edma_engine. Cc: Vinod Koul <vkoul@kernel.org> Cc: dmaengine@vger.kernel.org Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1] Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20231003232704.work.596-kees@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | dmaengine: fsl-dma: fix DMA error when enabling sg if 'DONE' bit is setFrank Li2023-09-281-1/+13
|/ | | | | | | | | | | In eDMAv3, clearing 'DONE' bit (bit 30) of CHn_CSR is required when enabling scatter-gather (SG). eDMAv4 does not require this change. Cc: stable@vger.kernel.org Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support") Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230921144652.3259813-1-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: integrate v3 supportFrank Li2023-08-221-1/+72
| | | | | | | | | | | | | | Significant alterations have been made to the EDMA v3's register layout. Now, each channel possesses a separate address space, encapsulating all channel-related controls and statuses, including IRQs. There are changes in bit position definitions as well. However, the fundamental control flow remains analogous to the previous versions. EDMA v3 was utilized in imx8qm, imx93, and will be in forthcoming chips. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-13-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: move tcd into struct fsl_dma_chanFrank Li2023-08-221-1/+21
| | | | | | | | | | | | | | | | | | Relocates the tcd into the fsl_dma_chan structure. This adjustment reduces the need to reference back to fsl_edma_engine, paving the way for EDMA V3 support. Unified the edma_writel and edma_writew functions for accessing TCD (Transfer Control Descriptor) registers. A new macro is added that can automatically detect whether a 32-bit or 16-bit access should be used based on the structure field definition. This provide better support 64-bit TCD with future v5 version. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202305271951.gmRobs3a-lkp@intel.com/ Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-11-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: refactor chan_name setup and safetyFrank Li2023-08-221-1/+1
| | | | | | | | | | | | Relocated the setup of chan_name from setup_irq() to fsl_chan init. This change anticipates its future use in various locations. For increased safety, sprintf has been replaced with snprintf. In addition, The size of the fsl_chan->name[] array was expanded from 16 to 32. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-10-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: simply ATTR_DSIZE and ATTR_SSIZE by using ffs()Frank Li2023-08-221-10/+0
| | | | | | | | | | Removes all ATTR_DSIZE_*BIT(BYTE) and ATTR_SSIZE_*BIT(BYTE) definitions in edma. Uses ffs() instead, as it gives identical results. This simplifies the code and avoids adding more similar definitions in future V3 version. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-7-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: move common IRQ handler to common.cFrank Li2023-08-221-0/+7
| | | | | | | | | | Move the common part of IRQ handler from fsl-edma-main.c and mcf-edma-main.c to fsl-edma-common.c. This eliminates redundant code, as the both files contains mostly identical code. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-6-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: Remove enum edma_versionFrank Li2023-08-221-7/+3
| | | | | | | | | | | | | The enum edma_version, which defines v1, v2, and v3, is a software concept used to distinguish IP differences. However, it is not aligned with the chip reference manual. According to the 7ulp reference manual, it should be edma2. In the future, there will be edma3, edma4, and edma5, which could cause confusion. To avoid this confusion, remove the edma_version and instead use drvdata->flags to distinguish the IP difference. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-5-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: transition from bool fields to bitmask flags in drvdataFrank Li2023-08-221-2/+3
| | | | | | | | | | | Replace individual bool fields with bitmask flags within drvdata. This will facilitate future extensions, making it easier to add more flags to accommodate new versions of the edma IP. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20230821161617.2142561-4-Frank.Li@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: support edma memcpyJoy Zou2021-10-281-0/+4
| | | | | | | | | | Add memcpy in edma. The edma has the capability to transfer data by software trigger so that it could be used for memory copy. Enable MEMCPY for edma driver and it could be test directly by dmatest. Signed-off-by: Joy Zou <joy.zou@nxp.com> Link: https://lore.kernel.org/r/20211026090025.2777292-1-joy.zou@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma-common: correct DSIZE_32BYTERobin Gong2020-07-061-1/+1
| | | | | | | | | | | | Correct EDMA_TCD_ATTR_DSIZE_32BYTE define since it's broken by the below: '0x0005 --> BIT(3) | BIT(0))' Fixes: 4d6d3a90e4ac ("dmaengine: fsl-edma: fix macros") Signed-off-by: Robin Gong <yibin.gong@nxp.com> Tested-by: Angelo Dureghello <angelo@sysam.it> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1593449998-32091-1-git-send-email-yibin.gong@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platformPeng Ma2019-12-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Our platforms(such as LS1021A, LS1012A, LS1043A, LS1046A, LS1028A) with below registers(CHCFG0 - CHCFG15) of eDMA as follows: *-----------------------------------------------------------* | Offset | OTHERS | LS1028A | |--------------|--------------------|-----------------------| | 0x0 | CHCFG0 | CHCFG3 | |--------------|--------------------|-----------------------| | 0x1 | CHCFG1 | CHCFG2 | |--------------|--------------------|-----------------------| | 0x2 | CHCFG2 | CHCFG1 | |--------------|--------------------|-----------------------| | 0x3 | CHCFG3 | CHCFG0 | |--------------|--------------------|-----------------------| | ... | ...... | ...... | |--------------|--------------------|-----------------------| | 0xC | CHCFG12 | CHCFG15 | |--------------|--------------------|-----------------------| | 0xD | CHCFG13 | CHCFG14 | |--------------|--------------------|-----------------------| | 0xE | CHCFG14 | CHCFG13 | |--------------|--------------------|-----------------------| | 0xF | CHCFG15 | CHCFG12 | *-----------------------------------------------------------* This patch is to improve edma driver to fit LS1028A platform. Signed-off-by: Peng Ma <peng.ma@nxp.com> Reviewed-by: Robin Gong <yibin.gong@nxp.com> Link: https://lore.kernel.org/r/20191212033714.4090-1-peng.ma@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: add i.mx7ulp edma2 version supportRobin Gong2019-08-081-0/+4
| | | | | | | | | | | | | | Add edma2 for i.mx7ulp by version v3, since v2 has already been used by mcf-edma. The big changes based on v1 are belows: 1. only one dmamux. 2. another clock dma_clk except dmamux clk. 3. 16 independent interrupts instead of only one interrupt for all channels. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Link: https://lore.kernel.org/r/1563952834-7731-1-git-send-email-yibin.gong@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: Revert "dmaengine: fsl-edma: add i.mx7ulp edma2 version support"Vinod Koul2019-07-081-4/+0
| | | | | | | | | This reverts commit 7144afd025b2 ("dmaengine: fsl-edma: add i.mx7ulp edma2 version support") as this fails to build with module option due to usage of of_irq_count() which is not an exported symbol as kernel drivers are *not* expected to use it (rightly so). Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: add i.mx7ulp edma2 version supportRobin Gong2019-07-031-0/+4
| | | | | | | | | | | | | | Add edma2 for i.mx7ulp by version v3, since v2 has already been used by mcf-edma. The big changes based on v1 are belows: 1. only one dmamux. 2. another clock dma_clk except dmamux clk. 3. 16 independent interrupts instead of only one interrupt for all channels. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Tested-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: add drvdata for fsl-edmaRobin Gong2019-07-031-1/+9
| | | | | | | | | | There are some differences between vf610 and next i.mx7ulp. Put such differences into static driver data for distinguishing easily at driver level. Change mcf-edma accordingly. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Tested-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: Fix typo in Vybrid nameKrzysztof Kozlowski2019-05-041-1/+1
| | | | | | | Fix typo in comment for Vybrid SoC family. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: dma map slave device addressLaurentiu Tudor2019-02-041-0/+4
| | | | | | | | | | | This mapping needs to be created in order for slave dma transfers to work on systems with SMMU. The implementation mostly mimics the one in pl330 dma driver, authored by Robin Murphy. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Suggested-by: Robin Murphy <robin.murphy@arm.com> Tested-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: remove dma_slave_config direction usageVinod Koul2018-10-091-9/+3
| | | | | | | | | | dma_slave_config direction was marked as deprecated quite some time back, remove the usage from this driver so that the field can be removed Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: fix macrosAngelo Dureghello2018-09-111-28/+22
| | | | | | | | | This patch fixes macros to use BIT() and GENMASK(), removing also some unneeded. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: add edma version and configurable registersAngelo Dureghello2018-09-111-29/+33
| | | | | | | | | | This patch adds configurable registers (using __iomem addresses) to allow the use of fsl-edma-common code with slightly different edma module versions, as Vybrid (v1) and ColdFire (v2) are. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
* dmaengine: fsl-edma: extract common fsl-edma code (no changes in behavior ↵Angelo Dureghello2018-09-111-0/+241
intended) This patch adds a new fsl-edma-common module to allow new mcf-edma module code to use most of the fsl-edma code. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
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