acp: add native Zephyr drivers for AMD ACP 7.X by sneha-voona · Pull Request #10777 · thesofproject/sof

sneha-voona · 2026-05-14T11:03:11Z

This PR adds native Zephyr support for AMD Audio Co-Processor (ACP) version 7.X for handling Sound Wire IO.

Add ACP_7_X platform support to xtensa-build-zephyr.py build script. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

Add the Xtensa HiFi5 defconfig for the AMD ACP 7.X audio DSP. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

Add the SoundWire topology M4 source file for AMD ACP 7.X (sof-acp_7_x_sdw.m4). The topology defines the SoundWire pipeline for native Zephyr, covering playback and capture paths for the SoundWire SW0 instance on ACP 7.X hardware. Signed-off-by: Sneha Voona <[email protected]>

Add the rimage toml configuration file for AMD ACP 7.X to enable signing and packaging of the sof-acp_7_x.ri firmware binary. The file specifies the adsp name and memory layout required by rimage to produce a correctly formatted image for the ACP 7.X audio DSP. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

Add CMakeLists.txt files to integrate the ACP 7.X platform and driver sources into the SOF CMake build system. This covers the platform-level build (platform.c, lib/clk.c) and the driver-level build (ipc.c) under src/drivers/amd/acp_7_x/, enabling the ACP_7_X platform to be compiled when CONFIG_ACP_7_X is selected. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

sofci · 2026-05-14T11:04:12Z

Can one of the admins verify this patch?

reply test this please to run this test once

sneha-voona · 2026-05-14T11:05:20Z

Dependency: This PR depends on zephyrproject-rtos/zephyr#108859 for native Zephyr ACP 7.X driver enablement.

lgirdwood · 2026-05-15T14:39:05Z

will run the CI

lgirdwood · 2026-05-15T14:39:12Z

test this please

Add ACP_7_X platform support for native Zephyr drivers. Changes include: - Add platform-specific files for ACP_7_X native Zephyr support - Add ACP_7_X in zephyr/CMakeLists.txt with platform sources, include directories and PLATFORM variable - Add app/boards/acp_7_x_adsp.conf with ACP_7_X Kconfig options for native Zephyr drivers (DMA, DAI, interrupts) Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

Add ACP_7_X SDW DMA channel support in zephyr/lib/dma.c for native Zephyr DMA operations. Update dai.c to set dai_index from dd->dai->index for AMD SDW DAI, add ACP_7_X SDW instance handling with per-instance pin index array, and free DAI-specific data on DMA release for AMD. Signed-off-by: Sneha Voona <[email protected]>

On AMD platforms, the scale_vol function pointer is not reset after volume reaches its maximum value (32). This causes decreasing volume after reaching max to have no effect, because is_passthrough remains set and scale_vol is never updated to the gain function. Fix by resetting is_passthrough to false and re-selecting scale_vol via set_volume_process() on every SOF_CTRL_CMD_VOLUME command under CONFIG_AMD, ensuring correct volume scaling in both directions. Changes: - src/arch/xtensa/configs/acp_7_x_defconfig: enable CONFIG_COMP_VOLUME for ACP_7_X platform - src/audio/volume/volume_ipc3.c: reset is_passthrough and call set_volume_process() after volume changes so scale_vol is re-selected correctly after max volume is reached - tools/topology/topology1/sof-acp_7_x_sdw_volume_comp.m4: add ACP_7_X SDW topology with volume pipelines for HS playback/capture, Speaker playback and DMIC capture paths Signed-off-by: Sneha Voona <[email protected]>

Changes include: - Add sample topology sof-acp_7_x_sdw_24bit.m4 for ACP_7_X SDW 24-bit pipelines supporting playback and capture paths - Select PCM conversion functions for S24_4LE<->S32_LE as per AMD hardware requirements under CONFIG_AMD, preserving existing behaviour for all other platforms Signed-off-by: Sneha Voona <[email protected]>

As per AMD internal hardware design requirement, the ACP DSP scheduler tick must run at 500 microseconds (2kHz) instead of the default 1ms (1kHz). Guard the 500us value with CONFIG_AMD so non-AMD platforms retain the existing 1ms default period unchanged. Signed-off-by: Sneha Voona <[email protected]>

kv2019i

Some comments inline. A few questions about modifications of common code. I also wonder why you still need so many xtensa headers. I guess your platform code may have some dependencies, but other vendors have been able to drop these headers from SOF once drivers moved to Zephyr side.

kv2019i · 2026-05-18T12:40:52Z

 		volume_set_ramp_channel_counter(cd, cd->channels);

 		volume_ramp_check(mod);
+#if defined(CONFIG_AMD)


This looks a bit odd? Why would this be HW/AMD specific functionality?

kv2019i · 2026-05-18T12:47:56Z

@@ -0,0 +1,757 @@
+/*


I'm a bit surprised to see so many platform headers here. If you look at targets that have moved to native drivers (IMX, Intel platforms), we no longer need core-isa.h and friends to be submitted to SOF side.

Not a blocker, but these shouldn't be needed anymore.

kv2019i · 2026-05-18T12:52:30Z

 	}

+#if defined(CONFIG_AMD)
+	/* Free allocated DAI-specific data structures */


This is looks a bit odd in common code, but I see matching code in ipc_dai_data_config(). Maybe add a comment that this is freeing the object allocated in ipc_dai_data_config().

kv2019i · 2026-05-18T12:55:21Z

+	int ret;
+
+	/* to view system memory */
+	platform_interrupt_init();


Interrupt handling should be on Zephyr side now, should no longer be needed on SOF side.

kv2019i · 2026-05-18T13:12:03Z

+#if defined(CONFIG_SOC_ACP_7_X)
+	{ SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S32_LE, just_copy },
+	{ SOF_IPC_FRAME_S32_LE, SOF_IPC_FRAME_S24_4LE, pcm_convert_s32_to_s24_be },
+#else


Can you @singalsu check this? This is first time we have HW dependencies the the PCM converter list.

It would prefer if we could keep same interpretations of the sample formats. This patch suggest your hardware natively 24bit encoding where the audio samples are stored in the 3 most significant bytes. The format we use for this is SOF_IPC_FRAME_S24_4LE_MSB.

So in theory, you'd set the correct format in either DSP topology, or some of the HW specific code. E.g. for Intel, we overrode the sample format in sof/src/ipc/ipc3/dai.c:ipc_dai_data_config().

Then we could keep the converter table vendor neutral.

Copilot

Pull request overview

This PR introduces a new AMD ACP 7.x platform target to the SOF Zephyr build, adding platform/driver code, build-system wiring, rimage memory layout, and initial SoundWire topologies for rt721-based systems.

Changes:

Adds a new ACP_7_X platform option (Kconfig, defconfig, rimage config) and wires it into both SOF and Zephyr CMake builds.
Introduces ACP 7.x platform implementation (platform init/clocking headers) and an ACP 7.x-specific IPC driver for Zephyr builds.
Adds new topology m4 templates and registers an ACP 7.x SoundWire topology in the topology build.

Reviewed changes

Copilot reviewed 35 out of 35 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
zephyr/lib/dma.c	Extends Zephyr DMA table for ACP 7.x and uses DT-provided SDW DMA channel count.
zephyr/CMakeLists.txt	Adds Zephyr build sources/includes for the new `CONFIG_SOC_ACP_7_X` platform.
tools/topology/topology1/sof-acp_7_x_sdw.m4	New ACP 7.x SoundWire topology (rt721) pipelines.
tools/topology/topology1/sof-acp_7_x_sdw_volume_comp.m4	Variant topology adding volume components.
tools/topology/topology1/sof-acp_7_x_sdw_24bit.m4	Variant topology targeting 24-bit formats.
tools/topology/topology1/CMakeLists.txt	Registers ACP 7.x SDW topology for build generation.
tools/rimage/config/acp_7_x.toml	Adds rimage memory zones for ACP 7.x.
src/platform/Kconfig	Adds `ACP_7_X` platform selection and signing schema default.
src/platform/amd/CMakeLists.txt	Adds ACP 7.x platform subdirectory and gates common platform subdir inclusion.
src/platform/amd/acp_7_x/CMakeLists.txt	Adds ACP 7.x platform sources to the SOF build.
src/platform/amd/acp_7_x/platform.c	New ACP 7.x platform init/boot-complete implementation for Zephyr timer domain path.
src/platform/amd/acp_7_x/lib/CMakeLists.txt	Adds ACP 7.x platform library sources.
src/platform/amd/acp_7_x/lib/clk.c	New ACP 7.x clock management implementation.
src/platform/amd/acp_7_x/include/platform/platform.h	ACP 7.x platform definitions and panic/IRQ constants.
src/platform/amd/acp_7_x/include/platform/platform_misc.h	ACP 7.x register defs and DMA-related structs used by AMD native drivers.
src/platform/amd/acp_7_x/include/platform/lib/memory.h	ACP 7.x memory map and heap/mailbox layout.
src/platform/amd/acp_7_x/include/platform/fw_scratch_mem.h	ACP scratch memory layout used for mailbox/flags.
src/platform/amd/acp_7_x/include/arch/xtensa/tie/xt_datacache.h	Xtensa TIE header added for this core configuration.
src/platform/amd/acp_7_x/include/arch/xtensa/config/tie.h	Xtensa core configuration header for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/tie-asm.h	Xtensa assembler configuration header for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/system.h	Xtensa system configuration header for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/specreg.h	Xtensa special register definitions for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/defs.h	Xtensa base compatibility header for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/core-matmap.h	Xtensa memory attribute mapping header for ACP 7.x target.
src/platform/amd/acp_7_x/include/arch/xtensa/config/core-isa.h	Xtensa core ISA configuration for ACP 7.x target.
src/ipc/ipc3/dai.c	Adds ACP 7.x SoundWire bookkeeping and frees AMD DAI per-device data on release.
src/include/sof/schedule/ll_schedule_domain.h	Changes LL timer period for AMD builds.
src/drivers/amd/CMakeLists.txt	Adds ACP 7.x driver subdir and gates common driver subdir inclusion.
src/drivers/amd/acp_7_x/CMakeLists.txt	Adds ACP 7.x driver sources.
src/drivers/amd/acp_7_x/ipc.c	New ACP 7.x IPC/IRQ handling implementation.
src/audio/volume/volume_ipc3.c	AMD-specific behavior updating volume processing function after config changes.
src/audio/pcm_converter/pcm_converter_generic.c	Adds ACP 7.x-specific S24/S32 conversion mapping.
src/arch/xtensa/configs/acp_7_x_defconfig	Adds SOF defconfig for ACP 7.x builds.
scripts/xtensa-build-zephyr.py	Adds build-script platform config for `acp_7_x` and marks it unsupported in sof_ri_info.
app/boards/acp_7_x_adsp.conf	Adds Zephyr board config enabling ACP 7.x native drivers (INTC/DMA/DAI SDW).

+	"acp_7_x" : PlatformConfig(
+		"amd", "acp_7_x_adsp/acp_7_x",
+		f"RI-2022.9{xtensa_tools_version_postfix}",
+		"ACP73x_HiFi5_NNE_PROD",


+	schedule_task_init_edf(&ipc->ipc_task, SOF_UUID(ipc_task_amd_uuid),
+			       &ipc_task_ops, ipc, 0, 0);
+	interrupt_disable(IRQ_EXT_IPC_LEVEL_3, 0);
+	interrupt_unregister(IRQ_EXT_IPC_LEVEL_3, ipc);
+	interrupt_register(IRQ_EXT_IPC_LEVEL_3, amd_irq_handler, ipc);
+	/* Enabling software interuppts */
+	interrupt_enable(IRQ_EXT_IPC_LEVEL_3, ipc);


+							SCRATCH_REG_OFFSET);
+
+SOF_DEFINE_REG_UUID(ipc_task_amd);
+extern volatile acp_scratch_mem_config_t *pscratch_mem_cfg;


 #include <stdint.h>

+#if defined(CONFIG_AMD)
+#define LL_TIMER_PERIOD_US	500ULL /* 500us period for AMD ACP platforms */


+#if defined(CONFIG_SOC_ACP_7_X)
+	{ SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S32_LE, just_copy },
+	{ SOF_IPC_FRAME_S32_LE, SOF_IPC_FRAME_S24_4LE, pcm_convert_s32_to_s24_be },
+#else
 	{ SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S32_LE, pcm_convert_s24_to_s32 },
 	{ SOF_IPC_FRAME_S32_LE, SOF_IPC_FRAME_S24_4LE, pcm_convert_s32_to_s24 },
+#endif


+#include <zephyr/drivers/dma.h>
+
+#define PU_REGISTER_BASE               (0x9FD00000 - 0x01240000)
+#define PU_SCRATCH_REG_BASE            (0x9FF00000 - 0x01250000)
+#define ACP_FUTURE_REG_ACLK_0          0x12418E0 /* don't use - reserved for driver gsync */


+#Required Topology for rt721 with ACP DMIC Card for ACP_7_X
+#
+# PCM      Description             DAI LINK      DAI BE
+#  0       HS Playback             0             SDW0-PIN0-PLAYBACK-SimpleJack       AUDIO_TX
+#  1       HS Capture              1             SDW0-PIN11-CAPTURE-SimpleJack        AUDIO_RX
+#  2       Speaker playback        2             SDW0-PIN4-PLAYBACK-SmartAmp         BT_TX
+#  4       SDW DMIC                4             SDW0-PIN15-CAPTURE-SmartMic          HS_RX
+


+#Required Topology for rt721 with ACP DMIC Card for ACP_7_X
+#
+# PCM      Description             DAI LINK      DAI BE
+#  0       HS Playback             0             SDW0-PIN0-PLAYBACK-SimpleJack       AUDIO_TX
+#  1       HS Capture              1             SDW0-PIN11-CAPTURE-SimpleJack        AUDIO_RX
+#  2       Speaker playback        2             SDW0-PIN4-PLAYBACK-SmartAmp         BT_TX
+#  4       SDW DMIC                4             SDW0-PIN15-CAPTURE-SmartMic          HS_RX
+


+#Required Topology for rt721 with ACP DMIC Card for ACP_7_X
+#
+# PCM      Description             DAI LINK      DAI BE
+#  0       HS Playback             0             SDW0-PIN0-PLAYBACK-SimpleJack       AUDIO_TX
+#  1       HS Capture              1             SDW0-PIN11-CAPTURE-SimpleJack        AUDIO_RX
+#  2       Speaker playback        2             SDW0-PIN4-PLAYBACK-SmartAmp         BT_TX
+#  4       SDW DMIC                4             SDW0-PIN15-CAPTURE-SmartMic          HS_RX
+


lgirdwood · 2026-05-18T13:36:12Z

@sneha-voona I've added copilot for review as this is standard now, pls do respond and resolve any copilot comments.

sneha-voona and others added 5 commits May 14, 2026 16:12

scripts: add support for ACP_7_X platform

4044122

Add ACP_7_X platform support to xtensa-build-zephyr.py build script. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

src: arch: xtensa: configs: add ACP_7_X defconfig

df18acd

Add the Xtensa HiFi5 defconfig for the AMD ACP 7.X audio DSP. Signed-off-by: Sneha Voona <[email protected]> Co-authored-by: DineshKumar Kalva <[email protected]>

sneha-voona requested review from abonislawski, bhiregoudar, dbaluta, iuliana-prodan, kv2019i, lbetlej, lgirdwood, lyakh, mmaka1, plbossart, ranj063 and sunilkumardommati as code owners May 14, 2026 11:03

sneha-voona and others added 5 commits May 18, 2026 15:50

sneha-voona force-pushed the acp_7_x_upstream branch from aab5985 to 3cb685a Compare May 18, 2026 10:22

kv2019i reviewed May 18, 2026

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lgirdwood requested a review from Copilot May 18, 2026 13:16

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acp: add native Zephyr drivers for AMD ACP 7.X #10777

acp: add native Zephyr drivers for AMD ACP 7.X #10777
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