diff options
Diffstat (limited to 'debian/gator-module-dkms/usr/src/gator-module-5.13.0/gator_marshaling.c')
| -rw-r--r-- | debian/gator-module-dkms/usr/src/gator-module-5.13.0/gator_marshaling.c | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/debian/gator-module-dkms/usr/src/gator-module-5.13.0/gator_marshaling.c b/debian/gator-module-dkms/usr/src/gator-module-5.13.0/gator_marshaling.c new file mode 100644 index 0000000..b2efdd2 --- /dev/null +++ b/debian/gator-module-dkms/usr/src/gator-module-5.13.0/gator_marshaling.c @@ -0,0 +1,338 @@ +/** + * Copyright (C) ARM Limited 2012. 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 as + * published by the Free Software Foundation. + * + */ + +static void marshal_summary(long long timestamp, long long uptime) +{ + int cpu = 0; + gator_buffer_write_packed_int64(cpu, SUMMARY_BUF, timestamp); + gator_buffer_write_packed_int64(cpu, SUMMARY_BUF, uptime); + buffer_check(cpu, SUMMARY_BUF); +} + +static bool marshal_cookie_header(const char *text) +{ + int cpu = smp_processor_id(); + return buffer_check_space(cpu, NAME_BUF, strlen(text) + 3 * MAXSIZE_PACK32); +} + +static void marshal_cookie(int cookie, const char *text) +{ + int cpu = smp_processor_id(); + // buffer_check_space already called by marshal_cookie_header + gator_buffer_write_packed_int(cpu, NAME_BUF, MESSAGE_COOKIE); + gator_buffer_write_packed_int(cpu, NAME_BUF, cookie); + gator_buffer_write_string(cpu, NAME_BUF, text); + buffer_check(cpu, NAME_BUF); +} + +static void marshal_thread_name(int pid, char *name) +{ + unsigned long flags, cpu; + local_irq_save(flags); + cpu = smp_processor_id(); + if (buffer_check_space(cpu, NAME_BUF, TASK_COMM_LEN + 3 * MAXSIZE_PACK32 + MAXSIZE_PACK64)) { + gator_buffer_write_packed_int(cpu, NAME_BUF, MESSAGE_THREAD_NAME); + gator_buffer_write_packed_int64(cpu, NAME_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, NAME_BUF, pid); + gator_buffer_write_string(cpu, NAME_BUF, name); + } + buffer_check(cpu, NAME_BUF); + local_irq_restore(flags); +} + +static bool marshal_backtrace_header(int exec_cookie, int tgid, int pid, int inKernel) +{ + int cpu = smp_processor_id(); + if (buffer_check_space(cpu, BACKTRACE_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32 + gator_backtrace_depth * 2 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int64(cpu, BACKTRACE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, exec_cookie); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, tgid); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, pid); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, inKernel); + return true; + } + + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, BACKTRACE_BUF); + + return false; +} + +static void marshal_backtrace(unsigned long address, int cookie) +{ + int cpu = smp_processor_id(); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, cookie); + gator_buffer_write_packed_int64(cpu, BACKTRACE_BUF, address); +} + +static void marshal_backtrace_footer(void) +{ + int cpu = smp_processor_id(); + gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, MESSAGE_END_BACKTRACE); + + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, BACKTRACE_BUF); +} + +static bool marshal_event_header(void) +{ + unsigned long flags, cpu = smp_processor_id(); + bool retval = false; + + local_irq_save(flags); + if (buffer_check_space(cpu, BLOCK_COUNTER_BUF, MAXSIZE_PACK32 + MAXSIZE_PACK64)) { + gator_buffer_write_packed_int(cpu, BLOCK_COUNTER_BUF, 0); // key of zero indicates a timestamp + gator_buffer_write_packed_int64(cpu, BLOCK_COUNTER_BUF, gator_get_time()); + retval = true; + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, BLOCK_COUNTER_BUF); + local_irq_restore(flags); + + return retval; +} + +static void marshal_event(int len, int *buffer) +{ + unsigned long i, flags, cpu = smp_processor_id(); + + if (len <= 0) + return; + + // length must be even since all data is a (key, value) pair + if (len & 0x1) { + pr_err("gator: invalid counter data detected and discarded"); + return; + } + + // events must be written in key,value pairs + local_irq_save(flags); + for (i = 0; i < len; i += 2) { + if (!buffer_check_space(cpu, BLOCK_COUNTER_BUF, 2 * MAXSIZE_PACK32)) { + break; + } + gator_buffer_write_packed_int(cpu, BLOCK_COUNTER_BUF, buffer[i]); + gator_buffer_write_packed_int(cpu, BLOCK_COUNTER_BUF, buffer[i + 1]); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, BLOCK_COUNTER_BUF); + local_irq_restore(flags); +} + +static void marshal_event64(int len, long long *buffer64) +{ + unsigned long i, flags, cpu = smp_processor_id(); + + if (len <= 0) + return; + + // length must be even since all data is a (key, value) pair + if (len & 0x1) { + pr_err("gator: invalid counter data detected and discarded"); + return; + } + + // events must be written in key,value pairs + local_irq_save(flags); + for (i = 0; i < len; i += 2) { + if (!buffer_check_space(cpu, BLOCK_COUNTER_BUF, 2 * MAXSIZE_PACK64)) { + break; + } + gator_buffer_write_packed_int64(cpu, BLOCK_COUNTER_BUF, buffer64[i]); + gator_buffer_write_packed_int64(cpu, BLOCK_COUNTER_BUF, buffer64[i + 1]); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, BLOCK_COUNTER_BUF); + local_irq_restore(flags); +} + +#if GATOR_CPU_FREQ_SUPPORT +static void marshal_event_single(int core, int key, int value) +{ + unsigned long flags, cpu; + + local_irq_save(flags); + cpu = smp_processor_id(); + if (buffer_check_space(cpu, COUNTER_BUF, MAXSIZE_PACK64 + 3 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int64(cpu, COUNTER_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, COUNTER_BUF, core); + gator_buffer_write_packed_int(cpu, COUNTER_BUF, key); + gator_buffer_write_packed_int(cpu, COUNTER_BUF, value); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, COUNTER_BUF); + local_irq_restore(flags); +} +#endif + +static void marshal_sched_gpu_start(int unit, int core, int tgid, int pid) +{ + unsigned long cpu = smp_processor_id(), flags; + + if (!per_cpu(gator_buffer, cpu)[GPU_TRACE_BUF]) + return; + + local_irq_save(flags); + if (buffer_check_space(cpu, GPU_TRACE_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, MESSAGE_GPU_START); + gator_buffer_write_packed_int64(cpu, GPU_TRACE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, unit); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, core); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, tgid); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, pid); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, GPU_TRACE_BUF); + local_irq_restore(flags); +} + +static void marshal_sched_gpu_stop(int unit, int core) +{ + unsigned long cpu = smp_processor_id(), flags; + + if (!per_cpu(gator_buffer, cpu)[GPU_TRACE_BUF]) + return; + + local_irq_save(flags); + if (buffer_check_space(cpu, GPU_TRACE_BUF, MAXSIZE_PACK64 + 3 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, MESSAGE_GPU_STOP); + gator_buffer_write_packed_int64(cpu, GPU_TRACE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, unit); + gator_buffer_write_packed_int(cpu, GPU_TRACE_BUF, core); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, GPU_TRACE_BUF); + local_irq_restore(flags); +} + +static void marshal_sched_trace_switch(int tgid, int pid, int cookie, int state) +{ + unsigned long cpu = smp_processor_id(), flags; + + if (!per_cpu(gator_buffer, cpu)[SCHED_TRACE_BUF]) + return; + + local_irq_save(flags); + if (buffer_check_space(cpu, SCHED_TRACE_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, MESSAGE_SCHED_SWITCH); + gator_buffer_write_packed_int64(cpu, SCHED_TRACE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, tgid); + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, pid); + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, cookie); + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, state); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, SCHED_TRACE_BUF); + local_irq_restore(flags); +} + +static void marshal_sched_trace_exit(int tgid, int pid) +{ + unsigned long cpu = smp_processor_id(), flags; + + if (!per_cpu(gator_buffer, cpu)[SCHED_TRACE_BUF]) + return; + + local_irq_save(flags); + if (buffer_check_space(cpu, SCHED_TRACE_BUF, MAXSIZE_PACK64 + 2 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, MESSAGE_SCHED_EXIT); + gator_buffer_write_packed_int64(cpu, SCHED_TRACE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, pid); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, SCHED_TRACE_BUF); + local_irq_restore(flags); +} + +#if GATOR_CPU_FREQ_SUPPORT +static void marshal_idle(int core, int state) +{ + unsigned long flags, cpu; + + local_irq_save(flags); + cpu = smp_processor_id(); + if (buffer_check_space(cpu, IDLE_BUF, MAXSIZE_PACK64 + 2 * MAXSIZE_PACK32)) { + gator_buffer_write_packed_int(cpu, IDLE_BUF, state); + gator_buffer_write_packed_int64(cpu, IDLE_BUF, gator_get_time()); + gator_buffer_write_packed_int(cpu, IDLE_BUF, core); + } + // Check and commit; commit is set to occur once buffer is 3/4 full + buffer_check(cpu, IDLE_BUF); + local_irq_restore(flags); +} +#endif + +static void marshal_frame(int cpu, int buftype) +{ + int frame; + + if (!per_cpu(gator_buffer, cpu)[buftype]) { + return; + } + + switch (buftype) { + case SUMMARY_BUF: + frame = FRAME_SUMMARY; + break; + case BACKTRACE_BUF: + frame = FRAME_BACKTRACE; + break; + case NAME_BUF: + frame = FRAME_NAME; + break; + case COUNTER_BUF: + frame = FRAME_COUNTER; + break; + case BLOCK_COUNTER_BUF: + frame = FRAME_BLOCK_COUNTER; + break; + case ANNOTATE_BUF: + frame = FRAME_ANNOTATE; + break; + case SCHED_TRACE_BUF: + frame = FRAME_SCHED_TRACE; + break; + case GPU_TRACE_BUF: + frame = FRAME_GPU_TRACE; + break; + case IDLE_BUF: + frame = FRAME_IDLE; + break; + default: + frame = -1; + break; + } + + // add response type + if (gator_response_type > 0) { + gator_buffer_write_packed_int(cpu, buftype, gator_response_type); + } + + // leave space for 4-byte unpacked length + per_cpu(gator_buffer_write, cpu)[buftype] = (per_cpu(gator_buffer_write, cpu)[buftype] + 4) & gator_buffer_mask[buftype]; + + // add frame type and core number + gator_buffer_write_packed_int(cpu, buftype, frame); + gator_buffer_write_packed_int(cpu, buftype, cpu); +} + +#if defined(__arm__) || defined(__aarch64__) +static void marshal_core_name(const char *name) +{ + int cpu = smp_processor_id(); + unsigned long flags; + local_irq_save(flags); + if (buffer_check_space(cpu, NAME_BUF, MAXSIZE_PACK32 + MAXSIZE_CORE_NAME)) { + gator_buffer_write_packed_int(cpu, NAME_BUF, HRTIMER_CORE_NAME); + gator_buffer_write_string(cpu, NAME_BUF, name); + } + buffer_check(cpu, NAME_BUF); + local_irq_restore(flags); +} +#endif |