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Commit 9de4633a authored by Naman Padhiar's avatar Naman Padhiar
Browse files

icnss2: Add support for host triggered recovery 



Send force FW crash message to FW via smp2p to trigger
SSR. This will be used by host to recover FW bad state.

Change-Id: If840a94c9102acb775fc67e6fd2098e9ae3b8a33
Signed-off-by: default avatarNaman Padhiar <npadhiar@codeaurora.org>
parent ba87aa9b

drivers/soc/qcom/icnss2/main.c

+27 −0
Original line number Diff line number Diff line
@@ -1834,6 +1834,30 @@ static int icnss_enable_recovery(struct icnss_priv *priv) 
	return 0;

}



static int icnss_trigger_ssr_smp2p(struct icnss_priv *priv)

{

	unsigned int value = 0;

	int ret;



	if (IS_ERR(priv->smp2p_info.smem_state))

		return -EINVAL;



	value |= priv->smp2p_info.seq++;

	value <<= ICNSS_SMEM_SEQ_NO_POS;

	value |= ICNSS_TRIGGER_SSR;

	ret = qcom_smem_state_update_bits(

			priv->smp2p_info.smem_state,

			ICNSS_SMEM_VALUE_MASK,

			value);

	if (ret)

		icnss_pr_dbg("Error in SMP2P sent ret: %d\n", ret);



	icnss_pr_dbg("Initiate Root PD restart. SMP2P sent value: 0x%X\n",

		     value);

	set_bit(ICNSS_HOST_TRIGGERED_PDR, &priv->state);

	return ret;

}



static int icnss_tcdev_get_max_state(struct thermal_cooling_device *tcdev,

					unsigned long *thermal_state)

{
@@ -2681,6 +2705,9 @@ int icnss_trigger_recovery(struct device *dev) 
		goto out;

	}



	if (priv->device_id == WCN6750_DEVICE_ID)

		return icnss_trigger_ssr_smp2p(priv);



	if (!test_bit(ICNSS_PDR_REGISTERED, &priv->state)) {

		icnss_pr_err("PD restart not enabled to trigger recovery: state: 0x%lx\n",

			     priv->state);

drivers/soc/qcom/icnss2/main.h

+3 −1
Original line number Diff line number Diff line
@@ -172,10 +172,12 @@ struct icnss_fw_mem { 
	unsigned long attrs;

};



enum icnss_power_save_mode {

enum icnss_smp2p_msg_id {

	ICNSS_POWER_SAVE_ENTER = 1,

	ICNSS_POWER_SAVE_EXIT,

	ICNSS_TRIGGER_SSR,

};



struct icnss_stats {

	struct {

		uint32_t posted;