basefw: Add handling of IPC4_DMA_CONTROL messages #9156

tmleman · 2024-05-22T16:03:51Z

This pull request introduces a handling of IPC4_DMA_CONTROL messages for the SSP DAI driver.

Below is a summary of the commits included in this pull request:

64ce0b9 Exposes the function to retrieve Zephyr DAI device structures, allowing other parts of the SOF codebase to access Zephyr native DAI drivers.
3801123: Implements handling for the IPC4_DMA_CONTROL message within the base firmware.

TODO before merge:

src/lib/dai.c

src/audio/base_fw.c

src/audio/base_fw_intel.c

lyakh

Thanks for addressing the comments! Formally the PR looks good to me now, although I still don't know why exactly this is needed - "improving the flexibility" doesn't tell me much, sorry :-) Would be nice to know what specific use-cases this is addressing.

tmleman · 2024-06-05T11:28:28Z

I still don't know why exactly this is needed - "improving the flexibility" doesn't tell me much

The implementation of the IPC4_DMA_CONTROL message handling is a requirement for SOF to align with the IPC4 interface specifications, which are part of the convergence effort with Windows audio infrastructure. This specific IPC message allows for dynamic configuration of DMA gateways, which is essential for use-cases where audio streams need to be routed between various components in a flexible manner, adapting to changes in audio topologies at runtime.

For instance, this capability is crucial for scenarios where audio endpoints can be added or removed dynamically, or where stream parameters may change on-the-fly without restarting the system or audio pipeline. It enables SOF to handle complex audio routing scenarios that are common in modern Windows-based systems, ensuring compatibility and feature parity with the Windows audio stack.

@lyakh Please also take a look at the changes on the Zephyr side that are required for this PR.

lgirdwood · 2024-06-25T14:53:59Z

@tmleman any update on ETA ? Do you have the Zephyr update now merged ?

src/audio/base_fw_intel.c

lgirdwood · 2024-07-04T14:06:51Z

@tmleman I guess we are blocked until after Zephyr merge Window ?

tmleman · 2024-07-08T10:46:06Z

I guess we are blocked until after Zephyr merge Window ?

@lgirdwood Yes, this change is blocked until the release of Zephyr LTS.

lgirdwood · 2024-07-09T14:54:00Z

I guess we are blocked until after Zephyr merge Window ?

@lgirdwood Yes, this change is blocked until the release of Zephyr LTS.

ok, tagged for v2.11 to remind everyone.

iganakov

Please use IPC4 error codes

src/audio/base_fw.c

src/audio/base_fw_intel.c

iganakov · 2024-08-01T13:41:00Z

src/audio/base_fw.c

+	}
+
+	dma_control = (struct ipc4_dma_control *)data;
+	if (dma_control->config_length > 0) {


From my perspective this check is wrong and should be removed or modified to
if (!dma_control->config_length).
config_length cannot be zero if DMA Control IPC has config data and contains the size of such data in number of dw. At least it is true for DMIC and UAOL.

@tmleman can you comment, is the config_length used or not?

And from my perspective, it was correct (however, I focused only on SSP during the implementation). I looked at how it looks in the reference fw and changed the logic in the IF. Now the error is returned when config_length is greater than the actual data size. The condition you proposed will not work for SSP because in all cases I was able to check, this parameter is equal to zero, which is consistent with the description in the documentation.

src/audio/base_fw.c

tmleman · 2024-08-06T07:02:20Z

Rebase

lgirdwood

LGTM, but lets get alignment with @iganakov

kv2019i

Looks good to me. If you can conclude the one discussion with @iganakov w.r.t. dma_control->config_length, this is good to go.

kv2019i · 2024-08-06T14:41:34Z

src/audio/base_fw.c

+	}
+
+	dma_control = (struct ipc4_dma_control *)data;
+	if (dma_control->config_length > 0) {


@tmleman can you comment, is the config_length used or not?

src/audio/base_fw_intel.c

src/audio/base_fw.c

This patch exposes the function to retrieve a pointer to the Zephyr device structure for a DAI of a given type and index. Previously, the function `dai_get_zephyr_device` was static and only usable within `dai.c`. By introducing `dai_get_device`, other parts of the SOF codebase can now access the Zephyr DAI device pointers, facilitating integration with Zephyr native DAI drivers. Signed-off-by: Tomasz Leman <[email protected]>

This patch introduces handling for the IPC4_DMA_CONTROL message type in the base firmware. The implementation includes a new function `basefw_vendor_dma_control` to process the DMA Control configuration for any DAI type. The `basefw_dma_control` function has been added to handle the IPC4_DMA_CONTROL message. It ensures the message is atomic and contains all necessary information before casting the data buffer to the `ipc4_dma_control` structure and processing it. The function also calls `basefw_vendor_dma_control` to apply the DMA Control configuration to the hardware. The `basefw_set_large_config` function in `src/audio/base_fw.c` has been updated to call `basefw_dma_control` when an IPC4_DMA_CONTROL message is received. If the `dai_config_update` operation is not implemented by the DAI driver, the function will return `-ENOSYS`. This change allows the base firmware to initialize or modify DMA gateway configurations dynamically, improving the flexibility of DMA management in response to IPC messages. Signed-off-by: Tomasz Leman <[email protected]>

iganakov

Looks good to me

kv2019i · 2024-09-05T11:27:28Z

Ready to go, but we need a clean pass of mandatory tests.

kv2019i · 2024-09-05T11:27:41Z

SOFCI TEST

tmleman requested review from RanderWang, marcinszkudlinski, pblaszko, lgirdwood, plbossart, mmaka1, lbetlej, dbaluta and kv2019i as code owners May 22, 2024 16:03

tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from cc6a12c to 0124d88 Compare May 23, 2024 08:47

lyakh reviewed May 23, 2024

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch 2 times, most recently from 8b66f23 to d03015e Compare May 24, 2024 10:30

tmleman changed the title ~~basefw: Add handling of IPC4_DMA_CONTROL messages~~ [DNM] basefw: Add handling of IPC4_DMA_CONTROL messages May 24, 2024

tmleman requested a review from lyakh May 24, 2024 11:15

lyakh reviewed May 27, 2024

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lgirdwood approved these changes May 29, 2024

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abonislawski mentioned this pull request Jun 14, 2024

[DNM] dai: add support for Intel UAOL DAI #9227

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from d03015e to 5c45e51 Compare June 17, 2024 11:03

tmleman mentioned this pull request Jun 18, 2024

intel_adsp: ssp: Add DMA Control Configuration API to Intel SSP DAI Driver zephyrproject-rtos/zephyr#73158

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lgirdwood added this to the v2.11 milestone Jun 25, 2024

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from 5c45e51 to 913972e Compare July 8, 2024 11:34

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iganakov mentioned this pull request Jul 23, 2024

Add copier gain feature #9323

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from 913972e to 3801123 Compare July 29, 2024 13:40

tmleman changed the title ~~[DNM] basefw: Add handling of IPC4_DMA_CONTROL messages~~ basefw: Add handling of IPC4_DMA_CONTROL messages Jul 29, 2024

tmleman requested a review from iganakov July 29, 2024 13:45

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from 3801123 to 1d8d32f Compare August 6, 2024 07:01

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch 4 times, most recently from 0673918 to 8359eb5 Compare August 7, 2024 14:23

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tmleman force-pushed the topic/upstream/pr/basefw/dma_constrol branch from 8359eb5 to 3fa5277 Compare August 9, 2024 15:57

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tmleman added 2 commits August 9, 2024 19:10

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kv2019i merged commit f9575cd into thesofproject:main Sep 6, 2024
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basefw: Add handling of IPC4_DMA_CONTROL messages #9156

basefw: Add handling of IPC4_DMA_CONTROL messages #9156

tmleman commented May 22, 2024 •

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basefw: Add handling of IPC4_DMA_CONTROL messages #9156

basefw: Add handling of IPC4_DMA_CONTROL messages #9156

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