• Mohammed Shafi Shajakhan's avatar
    ath10k: dump Copy Engine registers during firmware crash · c75c398b
    Mohammed Shafi Shajakhan authored
    Dump Copy Engine source and destination ring addresses.
    This is useful information to debug firmware crashes, assertes or hangs over long run
    assessing the Copy Engine Register status. This also enables dumping CE
    register status in debugfs Crash Dump file.
    
    Screenshot:
    
    ath10k_pci 0000:02:00.0: simulating hard firmware crash
    ath10k_pci 0000:02:00.0: firmware crashed! (uuid 84901ff5-d33c-456e-93ee-0165dea643cf)
    ath10k_pci 0000:02:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
    ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 1 testmode 1
    ath10k_pci 0000:02:00.0: firmware ver 10.2.4.70.59-2 api 5 features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 4159f498
    ath10k_pci 0000:02:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
    ath10k_pci 0000:02:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal otp max-sta 128 raw 0 hwcrypto 1
    ath10k_pci 0000:02:00.0: firmware register dump:
    ath10k_pci 0000:02:00.0: [00]: 0x4100016C 0x00000000 0x009A0F2A 0x00000000
    ath10k_pci 0000:02:00.0: [04]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [08]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [12]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [16]: 0x00000000 0x00000000 0x00000000 0x009A0F2A
    ath10k_pci 0000:02:00.0: [20]: 0x00000000 0x00401930 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [24]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [28]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [32]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [36]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [40]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [44]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [48]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [52]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: [56]: 0x00000000 0x00000000 0x00000000 0x00000000
    ath10k_pci 0000:02:00.0: Copy Engine register dump:
    ath10k_pci 0000:02:00.0: [00]: 0x00057400   7   7   3   3
    ath10k_pci 0000:02:00.0: [01]: 0x00057800  18  18  85  86
    ath10k_pci 0000:02:00.0: [02]: 0x00057c00  49  49  48  49
    ath10k_pci 0000:02:00.0: [03]: 0x00058000  16  16  17  16
    ath10k_pci 0000:02:00.0: [04]: 0x00058400   4   4  44   4
    ath10k_pci 0000:02:00.0: [05]: 0x00058800  12  12  11  12
    ath10k_pci 0000:02:00.0: [06]: 0x00058c00   3   3   3   3
    ath10k_pci 0000:02:00.0: [07]: 0x00059000   0   0   0   0
    ieee80211 phy0: Hardware restart was requested
    ath10k_pci 0000:02:00.0: device successfully recovered
    Signed-off-by: default avatarMohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
    [kvalo@qca.qualcomm.com: simplify the implementation]
    Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
    c75c398b
debug.c 62.8 KB