[PATCH RFC 12/13] dmaengine: sdxi: Add Kconfig and Makefile

Nathan Lynch via B4 Relay
2025-09-05T18:48:51Z

From: Nathan Lynch <nathan.lynch@amd.com>

Add SDXI Kconfig that includes debug and unit test options in addition
to the usual tristate. SDXI_DEBUG seems necessary because
DMADEVICES_DEBUG makes dmatest too verbose.

One goal is to keep the bus-agnostic portions of the driver buildable
without PCI(_MSI), in case non-PCI SDXI implementations come along
later.

Co-developed-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Nathan Lynch <nathan.lynch@amd.com>
---
drivers/dma/Kconfig | 2 ++
drivers/dma/Makefile | 1 +
drivers/dma/sdxi/Kconfig | 23 +++++++++++++++++++++++
drivers/dma/sdxi/Makefile | 17 +++++++++++++++++
4 files changed, 43 insertions(+)

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 05c7c7d9e5a4e52a8ad7ada8c8b9b1a6f9d875f6..cccf00b73e025944681b03cffe441c372526d3f3 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -774,6 +774,8 @@ source "drivers/dma/fsl-dpaa2-qdma/Kconfig"

source "drivers/dma/lgm/Kconfig"

+source "drivers/dma/sdxi/Kconfig"
+
source "drivers/dma/stm32/Kconfig"

# clients
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index a54d7688392b1a0e956fa5d23633507f52f017d9..ae4154595e1a6250b441a90078e9df3607d3d1dd 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -85,6 +85,7 @@ obj-$(CONFIG_XGENE_DMA) += xgene-dma.o
obj-$(CONFIG_ST_FDMA) += st_fdma.o
obj-$(CONFIG_FSL_DPAA2_QDMA) += fsl-dpaa2-qdma/
obj-$(CONFIG_INTEL_LDMA) += lgm/
+obj-$(CONFIG_SDXI) += sdxi/

obj-y += amd/
obj-y += mediatek/
diff --git a/drivers/dma/sdxi/Kconfig b/drivers/dma/sdxi/Kconfig
new file mode 100644
index 0000000000000000000000000000000000000000..c9757cffb5f64fbc175ded8d0c9d751f0a22b6df
--- /dev/null
+++ b/drivers/dma/sdxi/Kconfig
@@ -0,0 +1,23 @@
+config SDXI
+ tristate "SDXI support"
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+ select PACKING
+ help
+ Enable support for Smart Data Accelerator Interface (SDXI)
+ Platform Data Mover devices. SDXI is a vendor-neutral
+ standard for a memory-to-memory data mover and acceleration
+ interface.
+
+config SDXI_DEBUG
+ bool "SDXI driver debug"
+ default DMADEVICES_DEBUG
+ depends on SDXI != n
+ help
+ Enable debug output from the SDXI driver. This is an option
+ for use by developers and most users should say N here.
+
+config SDXI_KUNIT_TEST
+ tristate "SDXI unit tests" if !KUNIT_ALL_TESTS
+ depends on SDXI && KUNIT
+ default KUNIT_ALL_TESTS
diff --git a/drivers/dma/sdxi/Makefile b/drivers/dma/sdxi/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..c67e475689b45d6260fe970fb4afcc25f8f9ebc1
--- /dev/null
+++ b/drivers/dma/sdxi/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+
+ccflags-$(CONFIG_SDXI_DEBUG) += -DDEBUG
+
+obj-$(CONFIG_SDXI) += sdxi.o
+
+sdxi-objs += \
+ context.o \
+ descriptor.o \
+ device.o \
+ dma.o \
+ enqueue.o \
+ error.o
+
+sdxi-$(CONFIG_PCI_MSI) += pci.o
+
+obj-$(CONFIG_SDXI_KUNIT_TEST) += descriptor_kunit.o

--
2.39.5