evie/android_kernel_oneplus_msm8998
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Merge "icnss: Collect ramdump from MSA memory space"

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Linux Build Service Account 2016-11-16 18:17:03 -08:00 • committed by Gerrit - the friendly Code Review server
commit 4e2587d3f5
1 changed files with 31 additions and 4 deletions
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35
drivers/soc/qcom/icnss.c
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@ -45,6 +45,7 @@
#include <soc/qcom/service-locator.h>
#include <soc/qcom/service-notifier.h>
#include <soc/qcom/socinfo.h>
#include <soc/qcom/ramdump.h>
#include "wlan_firmware_service_v01.h"
@ -463,6 +464,7 @@ static struct icnss_priv {
struct qpnp_vadc_chip *vadc_dev;
uint64_t vph_pwr;
atomic_t pm_count;
struct ramdump_device *msa0_dump_dev;
} *penv;
static void icnss_hw_write_reg(void *base, u32 offset, u32 val)
@ -2657,8 +2659,6 @@ static int icnss_driver_event_pd_service_down(struct icnss_priv *priv,
out:
ret = icnss_hw_power_off(priv);
icnss_remove_msa_permissions(priv);
kfree(data);
return ret;
@ -2763,6 +2763,16 @@ static int icnss_qmi_wlfw_clnt_svc_event_notify(struct notifier_block *this,
return ret;
}
static int icnss_msa0_ramdump(struct icnss_priv *priv)
{
struct ramdump_segment segment;
memset(&segment, 0, sizeof(segment));
segment.v_address = priv->msa_va;
segment.size = priv->msa_mem_size;
return do_ramdump(priv->msa0_dump_dev, &segment, 1);
}
static struct notifier_block wlfw_clnt_nb = {
.notifier_call = icnss_qmi_wlfw_clnt_svc_event_notify,
};
@ -2778,9 +2788,19 @@ static int icnss_modem_notifier_nb(struct notifier_block *nb,
icnss_pr_dbg("Modem-Notify: event %lu\n", code);
if (code == SUBSYS_AFTER_SHUTDOWN) {
icnss_remove_msa_permissions(priv);
icnss_pr_info("Collecting msa0 segment dump\n");
icnss_msa0_ramdump(priv);
return NOTIFY_OK;
}
if (code != SUBSYS_BEFORE_SHUTDOWN)
return NOTIFY_OK;
if (test_bit(ICNSS_PDR_ENABLED, &priv->state))
return NOTIFY_OK;
icnss_pr_info("Modem went down, state: %lx\n", priv->state);
event_data = kzalloc(sizeof(*data), GFP_KERNEL);
@ -2936,8 +2956,6 @@ static int icnss_get_service_location_notify(struct notifier_block *nb,
set_bit(ICNSS_PDR_ENABLED, &priv->state);
icnss_modem_ssr_unregister_notifier(priv);
icnss_pr_dbg("PD restart enabled, state: 0x%lx\n", priv->state);
return NOTIFY_OK;
@ -3000,6 +3018,11 @@ static int icnss_enable_recovery(struct icnss_priv *priv)
goto enable_pdr;
}
priv->msa0_dump_dev = create_ramdump_device("wcss_msa0",
&priv->pdev->dev);
if (!priv->msa0_dump_dev)
return -ENOMEM;
icnss_modem_ssr_register_notifier(priv);
if (test_bit(SSR_ONLY, &quirks)) {
icnss_pr_dbg("PDR disabled through module parameter\n");
@ -4511,6 +4534,8 @@ static int icnss_remove(struct platform_device *pdev)
icnss_modem_ssr_unregister_notifier(penv);
destroy_ramdump_device(penv->msa0_dump_dev);
icnss_pdr_unregister_notifier(penv);
qmi_svc_event_notifier_unregister(WLFW_SERVICE_ID_V01,
@ -4522,6 +4547,8 @@ static int icnss_remove(struct platform_device *pdev)
icnss_hw_power_off(penv);
icnss_remove_msa_permissions(penv);
dev_set_drvdata(&pdev->dev, NULL);
return 0;