diff options
Diffstat (limited to 'kernel/trace/msm_rtb.c')
| -rw-r--r-- | kernel/trace/msm_rtb.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/trace/msm_rtb.c b/kernel/trace/msm_rtb.c index ba609d5eb07f..80058b544cb5 100644 --- a/kernel/trace/msm_rtb.c +++ b/kernel/trace/msm_rtb.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved. + * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -27,6 +27,7 @@ #include <linux/io.h> #include <asm-generic/sizes.h> #include <linux/msm_rtb.h> +#include <asm/timex.h> #define SENTINEL_BYTE_1 0xFF #define SENTINEL_BYTE_2 0xAA @@ -41,8 +42,9 @@ * 4) 4 bytes index * 4) 8 bytes extra data from the caller * 5) 8 bytes of timestamp + * 6) 8 bytes of cyclecount * - * Total = 32 bytes. + * Total = 40 bytes. */ struct msm_rtb_layout { unsigned char sentinel[3]; @@ -51,6 +53,7 @@ struct msm_rtb_layout { uint64_t caller; uint64_t data; uint64_t timestamp; + uint64_t cycle_count; } __attribute__ ((__packed__)); @@ -132,6 +135,11 @@ static void msm_rtb_write_timestamp(struct msm_rtb_layout *start) start->timestamp = sched_clock(); } +static void msm_rtb_write_cyclecount(struct msm_rtb_layout *start) +{ + start->cycle_count = get_cycles(); +} + static void uncached_logk_pc_idx(enum logk_event_type log_type, uint64_t caller, uint64_t data, int idx) { @@ -145,6 +153,7 @@ static void uncached_logk_pc_idx(enum logk_event_type log_type, uint64_t caller, msm_rtb_write_idx(idx, start); msm_rtb_write_data(data, start); msm_rtb_write_timestamp(start); + msm_rtb_write_cyclecount(start); mb(); return; |