[RESEND] ASoC: SOF: Intel: hda-dsp: Skip IMR boot on ACE platforms in case of S3 suspend

[RESEND] ASoC: SOF: Intel: hda-dsp: Skip IMR boot on ACE platforms in case of S3 suspend

[Peter Ujfalusi]

SoCs with ACE architecture are tailored to use s2idle instead deep (S3)
suspend state and the IMR content is lost when the system is forced to
enter even to S3.
When waking up from S3 state the IMR boot will fail as the content is lost.
Set the skip_imr_boot flag to make sure that we don't try IMR in this case.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
Hi Mark,

Can you pick this for 6.9, it was originally sent on 13.02.2024:
https://lore.kernel.org/linux-sound/20240213110701.12818-1-peter.ujfalusi@linux.intel.com/

Thanks,
Peter

 sound/soc/sof/intel/hda-dsp.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 31ffa1a8f2ac..ef5c915db8ff 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -681,17 +681,27 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
 	const struct sof_intel_dsp_desc *chip = hda->desc;
 	struct hdac_bus *bus = sof_to_bus(sdev);
+	bool imr_lost = false;
 	int ret, j;
 
 	/*
-	 * The memory used for IMR boot loses its content in deeper than S3 state
-	 * We must not try IMR boot on next power up (as it will fail).
-	 *
+	 * The memory used for IMR boot loses its content in deeper than S3
+	 * state on CAVS platforms.
+	 * On ACE platforms due to the system architecture the IMR content is
+	 * lost at S3 state already, they are tailored for s2idle use.
+	 * We must not try IMR boot on next power up in these cases as it will
+	 * fail.
+	 */
+	if (sdev->system_suspend_target > SOF_SUSPEND_S3 ||
+	    (chip->hw_ip_version >= SOF_INTEL_ACE_1_0 &&
+	     sdev->system_suspend_target == SOF_SUSPEND_S3))
+		imr_lost = true;
+
+	/*
 	 * In case of firmware crash or boot failure set the skip_imr_boot to true
 	 * as well in order to try to re-load the firmware to do a 'cold' boot.
 	 */
-	if (sdev->system_suspend_target > SOF_SUSPEND_S3 ||
-	    sdev->fw_state == SOF_FW_CRASHED ||
+	if (imr_lost || sdev->fw_state == SOF_FW_CRASHED ||
 	    sdev->fw_state == SOF_FW_BOOT_FAILED)
 		hda->skip_imr_boot = true;
 
-- 
2.44.0

Re: [RESEND] ASoC: SOF: Intel: hda-dsp: Skip IMR boot on ACE platforms in case of S3 suspend

[Mark Brown]

On Fri, 22 Mar 2024 13:25:04 +0200, Peter Ujfalusi wrote:
> SoCs with ACE architecture are tailored to use s2idle instead deep (S3)
> suspend state and the IMR content is lost when the system is forced to
> enter even to S3.
> When waking up from S3 state the IMR boot will fail as the content is lost.
> Set the skip_imr_boot flag to make sure that we don't try IMR in this case.
> 
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: SOF: Intel: hda-dsp: Skip IMR boot on ACE platforms in case of S3 suspend
      commit: c61115b37ff964d63191dbf4a058f481daabdf57

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark