diff options
| author | Golan Ben Ami <golan.ben.ami@intel.com> | 2017-09-12 12:32:25 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2017-10-06 13:59:44 +0300 |
| commit | 1efc3843a4ee1331bc20df685a79b47fa0f547d2 (patch) | |
| tree | 7f5748e04d93ed56a88d37cb57dd572b1bdf04eb /drivers/net/wireless/intel/iwlwifi/fw/dbg.h | |
| parent | baf41bc35f2bdb953da532645fd82009c2d12acf (diff) | |
| download | linux-1efc3843a4ee1331bc20df685a79b47fa0f547d2.tar.bz2 | |
iwlwifi: stop dbgc recording before stopping DMA
Today we stop the device and the DMA without stopping the dbgc
recording before. This causes host crashes when the DMA
rate is high.
Stop dbgc recording when clearing the fw debug configuration
to fix this.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/dbg.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/dbg.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h index 0f810ea89d31..9c889a32fe24 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h @@ -68,6 +68,8 @@ #include <linux/workqueue.h> #include <net/cfg80211.h> #include "runtime.h" +#include "iwl-prph.h" +#include "iwl-io.h" #include "file.h" #include "error-dump.h" @@ -194,8 +196,21 @@ _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt, iwl_fw_dbg_get_trigger((fwrt)->fw,\ (trig))) +static inline void iwl_fw_dbg_stop_recording(struct iwl_fw_runtime *fwrt) +{ + if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) { + iwl_set_bits_prph(fwrt->trans, MON_BUFF_SAMPLE_CTL, 0x100); + } else { + iwl_write_prph(fwrt->trans, DBGC_IN_SAMPLE, 0); + udelay(100); + iwl_write_prph(fwrt->trans, DBGC_OUT_CTRL, 0); + } +} + static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt) { + iwl_fw_dbg_stop_recording(fwrt); + fwrt->dump.conf = FW_DBG_INVALID; } |