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authorLinus Torvalds <torvalds@linux-foundation.org>2025-06-05 08:49:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-06-05 08:49:30 -0700
commitbfdf35c5dc6267f70f76abddfacface4dd3b9ac0 (patch)
tree475482fdc7bb8ede32a216d6c0a34310436f9baa /drivers/dma/idxd/sysfs.c
parentd12ed2b7e1fe5c9e4a372a95fb7635a7f81eff6a (diff)
parent3c018bf5a0ee3abe8d579d6a0dda616c3858d7b2 (diff)
downloadlwn-bfdf35c5dc6267f70f76abddfacface4dd3b9ac0.tar.gz
lwn-bfdf35c5dc6267f70f76abddfacface4dd3b9ac0.zip
Merge tag 'dmaengine-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul: "A fairly small update for the dmaengine subsystem. This has a new ARM dmaengine driver and couple of new device support and few driver changes: New support: - Renesas RZ/V2H(P) dma support for r9a09g057 - Arm DMA-350 driver - Tegra Tegra264 ADMA support Updates: - AMD ptdma driver code removal and optimizations - Freescale edma error interrupt handler support" * tag 'dmaengine-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (27 commits) dmaengine: idxd: Remove unused pointer and macro arm64: dts: renesas: r9a09g057: Add DMAC nodes dmaengine: sh: rz-dmac: Add RZ/V2H(P) support dmaengine: sh: rz-dmac: Allow for multiple DMACs irqchip/renesas-rzv2h: Add rzv2h_icu_register_dma_req() dt-bindings: dma: rz-dmac: Document RZ/V2H(P) family of SoCs dt-bindings: dma: rz-dmac: Restrict properties for RZ/A1H dmaengine: idxd: Narrow the restriction on BATCH to ver. 1 only dmaengine: ti: Add NULL check in udma_probe() fsldma: Set correct dma_mask based on hw capability dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using dmaengine: xilinx_dma: Set dma_device directions dmaengine: tegra210-adma: Add Tegra264 support dt-bindings: Document Tegra264 ADMA support dmaengine: dw-edma: Add HDMA NATIVE map check dmaegnine: fsl-edma: add edma error interrupt handler dt-bindings: dma: fsl-edma: increase maxItems of interrupts and interrupt-names dmaengine: ARM_DMA350 should depend on ARM/ARM64 dt-bindings: dma: qcom,bam: Document dma-coherent property dmaengine: Add Arm DMA-350 driver ...
Diffstat (limited to 'drivers/dma/idxd/sysfs.c')
-rw-r--r--drivers/dma/idxd/sysfs.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index 6af493f6ba77..9f0701021af0 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -1208,9 +1208,11 @@ static ssize_t op_cap_show_common(struct device *dev, char *buf, unsigned long *
/* On systems where direct user submissions are not safe, we need to clear out
* the BATCH capability from the capability mask in sysfs since we cannot support
- * that command on such systems.
+ * that command on such systems. Narrow the restriction of operations with the
+ * BATCH opcode to only DSA version 1 devices.
*/
- if (i == DSA_OPCODE_BATCH/64 && !confdev_to_idxd(dev)->user_submission_safe)
+ if (i == DSA_OPCODE_BATCH/64 && !confdev_to_idxd(dev)->user_submission_safe &&
+ confdev_to_idxd(dev)->hw.version == DEVICE_VERSION_1)
clear_bit(DSA_OPCODE_BATCH % 64, &val);
pos += sysfs_emit_at(buf, pos, "%*pb", 64, &val);