Add support for SOF_IPC_FW_READY message initiated by host #7463
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LaurentiuM1234
requested review from
kv2019i,
lyakh,
iuliana-prodan,
dbaluta,
abonislawski,
lgirdwood,
plbossart,
mmaka1 and
lbetlej
as code owners
paulstelian97
approved these changes
Apr 19, 2023
kv2019i
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Apr 19, 2023
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I couldn't first make my mind whether this is an ABI change or not, but given this uses existing ABI definitions and is limited to one platform, my end conclusion is that this is not ABI change. Thanks for the good inline documentation, that helped in review.
iuliana-prodan
approved these changes
Apr 20, 2023
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SOFCI TEST |
dbaluta
reviewed
Apr 24, 2023
Due to the fact that on i.MX93 the host will initialize the SOF_IPC_FW_READY sequence there's no need to call platform_boot_complete() at the end of start_complete(). This will be handled in the IPC3 handler. This commit makes sure that aforementioned scenario won't happen for i.MX93 while keeping the flow constant for the other platforms. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
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Fixed problems pointed out by @dbaluta. Please let me know if there's anything else you'd like me to address. Otherwise, IMO this is ready for merge. |
In the case of i.MX93 Linux will send an IPC_FW_READY message to SOF and will expect to receive the following information in the hostbox: 1) reply structure 2) sof_ipc_fw_ready structure 3) sof_ipc_fw_ready structure This flow is required because the FW (due to Jailhouse's design) will be up before the platform driver from Linux so the SOF_IPC_FW_READY sequence can't be initiated by SOF. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
paulstelian97
approved these changes
Apr 28, 2023
dbaluta
approved these changes
Apr 28, 2023
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thanks @LaurentiuM1234! will merge this once CI is ready. |
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In the case of i.MX93 Linux will send an IPC_FW_READY message to SOF and will expect to receive the following information in the hostbox:
1) reply structure
2) sof_ipc_fw_ready structure
3) sof_ipc_window structure
This flow is required because Jailhouse is currently controlled from user space. This means that SOF will be up before the platform driver from Linux so the IPC_FW_READY sequence can't be initiated by SOF.
Please see #7192 for PR dependency graph.