diff options
| author | Sravan Kumar Kairam <sgoud@codeaurora.org> | 2017-07-13 17:31:07 +0530 |
|---|---|---|
| committer | Sravan Kumar Kairam <sgoud@codeaurora.org> | 2017-09-04 14:52:29 +0530 |
| commit | 17f17db02ef981be377af2f54d65cdf2ba8b2a4d (patch) | |
| tree | a59a055b012f4779c30ac3f22276c0a14b59f7c0 | |
| parent | 9985e8fad980cecb3a66484d0ec27e04a87e07ba (diff) | |
qcacld-3.0: Shutdown IPA WDI pipes on PDR event
Shutdown the IPA WDI pipes on PDR event from ICNSS driver to
prevent the possibility of IPA diver invalid access of CE ring
registers.
Change-Id: I19da0c015ba229512f71d7016236b106d9d8ee43
CRs-Fixed: 2072920
| -rw-r--r-- | core/hdd/inc/wlan_hdd_main.h | 7 | ||||
| -rw-r--r-- | core/hdd/src/wlan_hdd_driver_ops.c | 1 | ||||
| -rw-r--r-- | core/hdd/src/wlan_hdd_main.c | 9 |
3 files changed, 17 insertions, 0 deletions
diff --git a/core/hdd/inc/wlan_hdd_main.h b/core/hdd/inc/wlan_hdd_main.h index 467855a812d2..d0b5bb0eedb3 100644 --- a/core/hdd/inc/wlan_hdd_main.h +++ b/core/hdd/inc/wlan_hdd_main.h @@ -2728,4 +2728,11 @@ static inline void hdd_update_hlp_info(struct net_device *dev, tCsrRoamInfo *roam_info) {} #endif + +/** + * hdd_pld_ipa_uc_shutdown_pipes() - Disconnect IPA WDI pipes during PDR + * + * Return: None + */ +void hdd_pld_ipa_uc_shutdown_pipes(void); #endif /* end #if !defined(WLAN_HDD_MAIN_H) */ diff --git a/core/hdd/src/wlan_hdd_driver_ops.c b/core/hdd/src/wlan_hdd_driver_ops.c index bf3e0c330cfa..b1f5435889ae 100644 --- a/core/hdd/src/wlan_hdd_driver_ops.c +++ b/core/hdd/src/wlan_hdd_driver_ops.c @@ -1252,6 +1252,7 @@ static void wlan_hdd_pld_uevent(struct device *dev, switch (uevent->uevent) { case PLD_RECOVERY: cds_set_recovery_in_progress(true); + hdd_pld_ipa_uc_shutdown_pipes(); break; case PLD_FW_DOWN: cds_set_fw_state(CDS_FW_STATE_DOWN); diff --git a/core/hdd/src/wlan_hdd_main.c b/core/hdd/src/wlan_hdd_main.c index 88ed006012e4..3f7e42124e37 100644 --- a/core/hdd/src/wlan_hdd_main.c +++ b/core/hdd/src/wlan_hdd_main.c @@ -12059,6 +12059,15 @@ int hdd_set_limit_off_chan_for_tos(hdd_adapter_t *adapter, enum tos tos, return ret; } +void hdd_pld_ipa_uc_shutdown_pipes(void) +{ + hdd_context_t *hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD); + if (!hdd_ctx) + return; + + hdd_ipa_uc_force_pipe_shutdown(hdd_ctx); +} + /* Register the module init/exit functions */ module_init(hdd_module_init); module_exit(hdd_module_exit); |