misc: tegra-profiler: add task comm events

Add task COMM events:
- Add support for quadd_event_comm() callback.
- Send task COMM events to userspace.

Bug 2514095
Jira DTSP-2432

Change-Id: Id5b92f544497b69098e3b16bf82baf0f6abb77e1
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2027490
(cherry picked from commit a0c0d3bf9eeabbdad2a43b768235e1cc846b04ef)
Reviewed-on: https://git-master.nvidia.com/r/2093405
GVS: Gerrit_Virtual_Submit
Reviewed-by: Roman Rybalko <rrybalko@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 106 insertions, 83 deletions

diff --git a/include/linux/tegra_profiler.h b/include/linux/tegra_profiler.h
index c55f25b57..edca37b25 100644
--- a/include/linux/tegra_profiler.h
+++ b/include/linux/tegra_profiler.h
@@ -31,6 +31,7 @@ extern void __quadd_task_sched_out(struct task_struct *prev,
 extern void __quadd_event_mmap(struct vm_area_struct *vma);
 extern void __quadd_event_fork(struct task_struct *task);
 extern void __quadd_event_exit(struct task_struct *task);
+extern void __quadd_event_comm(struct task_struct *task, bool exec);
 
 static inline void quadd_task_sched_in(struct task_struct *prev,
                                        struct task_struct *task)
@@ -59,6 +60,11 @@ static inline void quadd_event_exit(struct task_struct *task)
         __quadd_event_exit(task);
 }
 
+static inline void quadd_event_comm(struct task_struct *task, bool exec)
+{
+        __quadd_event_comm(task, exec);
+}
+
 #else   /* CONFIG_TEGRA_PROFILER */
 
 static inline void quadd_task_sched_in(struct task_struct *prev,
@@ -83,6 +89,10 @@ static inline void quadd_event_exit(struct task_struct *task)
 {
 }
 
+static inline void quadd_event_comm(struct task_struct *task, bool exec)
+{
+}
+
 #endif  /* CONFIG_TEGRA_PROFILER */
 
 #endif  /* __TEGRA_PROFILER_H */
diff --git a/include/uapi/linux/tegra_profiler.h b/include/uapi/linux/tegra_profiler.h
index 0e0c36f15..b05e46724 100644
--- a/include/uapi/linux/tegra_profiler.h
+++ b/include/uapi/linux/tegra_profiler.h
@@ -20,71 +20,72 @@
 #include <linux/ioctl.h>
 #include <linux/types.h>
 
-#define QUADD_SAMPLES_VERSION   46
-#define QUADD_IO_VERSION        26
-
-#define QUADD_IO_VERSION_DYNAMIC_RB             5
-#define QUADD_IO_VERSION_RB_MAX_FILL_COUNT      6
-#define QUADD_IO_VERSION_MOD_STATE_STATUS_FIELD 7
-#define QUADD_IO_VERSION_BT_KERNEL_CTX          8
-#define QUADD_IO_VERSION_GET_MMAP               9
-#define QUADD_IO_VERSION_BT_UNWIND_TABLES       10
-#define QUADD_IO_VERSION_UNWIND_MIXED           11
-#define QUADD_IO_VERSION_EXTABLES_MMAP          12
-#define QUADD_IO_VERSION_ARCH_TIMER_OPT         13
-#define QUADD_IO_VERSION_DATA_MMAP              14
-#define QUADD_IO_VERSION_BT_LOWER_BOUND         15
-#define QUADD_IO_VERSION_STACK_OFFSET           16
-#define QUADD_IO_VERSION_SECTIONS_INFO          17
-#define QUADD_IO_VERSION_UNW_METHODS_OPT        18
-#define QUADD_IO_VERSION_PER_CPU_SETUP          19
-#define QUADD_IO_VERSION_TRACE_ALL_TASKS        20
-#define QUADD_IO_VERSION_CB_POWER_OF_2          21
-#define QUADD_IO_VERSION_RAW_EVENTS             22
-#define QUADD_IO_VERSION_SAMPLING_MODE          23
-#define QUADD_IO_VERSION_FORCE_ARCH_TIMER       24
-#define QUADD_IO_VERSION_SAMPLE_ALL_TASKS       25
-#define QUADD_IO_VERSION_EXTABLES_PID           26
-
-#define QUADD_SAMPLE_VERSION_THUMB_MODE_FLAG            17
-#define QUADD_SAMPLE_VERSION_GROUP_SAMPLES              18
-#define QUADD_SAMPLE_VERSION_THREAD_STATE_FLD           19
-#define QUADD_SAMPLE_VERSION_BT_UNWIND_TABLES           22
-#define QUADD_SAMPLE_VERSION_SUPPORT_IP64               23
-#define QUADD_SAMPLE_VERSION_SPECIAL_MMAP               24
-#define QUADD_SAMPLE_VERSION_UNWIND_MIXED               25
-#define QUADD_SAMPLE_VERSION_UNW_ENTRY_TYPE             26
-#define QUADD_SAMPLE_VERSION_USE_ARCH_TIMER             27
-#define QUADD_SAMPLE_VERSION_SCHED_SAMPLES              28
-#define QUADD_SAMPLE_VERSION_HDR_UNW_METHOD             29
-#define QUADD_SAMPLE_VERSION_HDR_ARCH_TIMER             30
-#define QUADD_SAMPLE_VERSION_STACK_OFFSET               31
-#define QUADD_SAMPLE_VERSION_SCHED_TASK_STATE           32
-#define QUADD_SAMPLE_VERSION_URCS                       33
-#define QUADD_SAMPLE_VERSION_HOTPLUG                    34
-#define QUADD_SAMPLE_VERSION_PER_CPU_SETUP              35
-#define QUADD_SAMPLE_VERSION_REPORT_TGID                36
-#define QUADD_SAMPLE_VERSION_MMAP_TS                    37
-#define QUADD_SAMPLE_VERSION_RAW_EVENTS                 38
-#define QUADD_SAMPLE_VERSION_OVERHEAD_INFO              39
-#define QUADD_SAMPLE_VERSION_REPORT_VPID                40
-#define QUADD_SAMPLE_VERSION_SCHED_REPORT_VPID          41
-#define QUADD_SAMPLE_VERSION_SAMPLING_MODE              42
-#define QUADD_SAMPLE_VERSION_SAMPLE_ALL_TASKS           43
-#define QUADD_SAMPLE_VERSION_KTHREAD_TSK_FLAG           44
-#define QUADD_SAMPLE_VERSION_MMAP_CPUID                 45
-#define QUADD_SAMPLE_VERSION_PCLK_SEND_CHANGES          46
-
-#define QUADD_MMAP_HEADER_VERSION       1
-
-#define QUADD_MAX_COUNTERS      32
-#define QUADD_MAX_PROCESS       64
-
-#define QUADD_DEVICE_NAME       "quadd"
-#define QUADD_AUTH_DEVICE_NAME  "quadd_auth"
-
-#define QUADD_MOD_DEVICE_NAME           "quadd_mod"
-#define QUADD_MOD_AUTH_DEVICE_NAME      "quadd_mod_auth"
+#define QUADD_SAMPLES_VERSION   47
+#define QUADD_IO_VERSION        26
+
+#define QUADD_IO_VERSION_DYNAMIC_RB             5
+#define QUADD_IO_VERSION_RB_MAX_FILL_COUNT      6
+#define QUADD_IO_VERSION_MOD_STATE_STATUS_FIELD 7
+#define QUADD_IO_VERSION_BT_KERNEL_CTX          8
+#define QUADD_IO_VERSION_GET_MMAP               9
+#define QUADD_IO_VERSION_BT_UNWIND_TABLES       10
+#define QUADD_IO_VERSION_UNWIND_MIXED           11
+#define QUADD_IO_VERSION_EXTABLES_MMAP          12
+#define QUADD_IO_VERSION_ARCH_TIMER_OPT         13
+#define QUADD_IO_VERSION_DATA_MMAP              14
+#define QUADD_IO_VERSION_BT_LOWER_BOUND         15
+#define QUADD_IO_VERSION_STACK_OFFSET           16
+#define QUADD_IO_VERSION_SECTIONS_INFO          17
+#define QUADD_IO_VERSION_UNW_METHODS_OPT        18
+#define QUADD_IO_VERSION_PER_CPU_SETUP          19
+#define QUADD_IO_VERSION_TRACE_ALL_TASKS        20
+#define QUADD_IO_VERSION_CB_POWER_OF_2          21
+#define QUADD_IO_VERSION_RAW_EVENTS             22
+#define QUADD_IO_VERSION_SAMPLING_MODE          23
+#define QUADD_IO_VERSION_FORCE_ARCH_TIMER       24
+#define QUADD_IO_VERSION_SAMPLE_ALL_TASKS       25
+#define QUADD_IO_VERSION_EXTABLES_PID           26
+
+#define QUADD_SAMPLE_VERSION_THUMB_MODE_FLAG    17
+#define QUADD_SAMPLE_VERSION_GROUP_SAMPLES      18
+#define QUADD_SAMPLE_VERSION_THREAD_STATE_FLD   19
+#define QUADD_SAMPLE_VERSION_BT_UNWIND_TABLES   22
+#define QUADD_SAMPLE_VERSION_SUPPORT_IP64       23
+#define QUADD_SAMPLE_VERSION_SPECIAL_MMAP       24
+#define QUADD_SAMPLE_VERSION_UNWIND_MIXED       25
+#define QUADD_SAMPLE_VERSION_UNW_ENTRY_TYPE     26
+#define QUADD_SAMPLE_VERSION_USE_ARCH_TIMER     27
+#define QUADD_SAMPLE_VERSION_SCHED_SAMPLES      28
+#define QUADD_SAMPLE_VERSION_HDR_UNW_METHOD     29
+#define QUADD_SAMPLE_VERSION_HDR_ARCH_TIMER     30
+#define QUADD_SAMPLE_VERSION_STACK_OFFSET       31
+#define QUADD_SAMPLE_VERSION_SCHED_TASK_STATE   32
+#define QUADD_SAMPLE_VERSION_URCS               33
+#define QUADD_SAMPLE_VERSION_HOTPLUG            34
+#define QUADD_SAMPLE_VERSION_PER_CPU_SETUP      35
+#define QUADD_SAMPLE_VERSION_REPORT_TGID        36
+#define QUADD_SAMPLE_VERSION_MMAP_TS            37
+#define QUADD_SAMPLE_VERSION_RAW_EVENTS         38
+#define QUADD_SAMPLE_VERSION_OVERHEAD_INFO      39
+#define QUADD_SAMPLE_VERSION_REPORT_VPID        40
+#define QUADD_SAMPLE_VERSION_SCHED_REPORT_VPID  41
+#define QUADD_SAMPLE_VERSION_SAMPLING_MODE      42
+#define QUADD_SAMPLE_VERSION_SAMPLE_ALL_TASKS   43
+#define QUADD_SAMPLE_VERSION_KTHREAD_TSK_FLAG   44
+#define QUADD_SAMPLE_VERSION_MMAP_CPUID         45
+#define QUADD_SAMPLE_VERSION_PCLK_SEND_CHANGES  46
+#define QUADD_SAMPLE_VERSION_COMM_SAMPLES       47
+
+#define QUADD_MMAP_HEADER_VERSION       1
+
+#define QUADD_MAX_COUNTERS      32
+#define QUADD_MAX_PROCESS       64
+
+#define QUADD_DEVICE_NAME               "quadd"
+#define QUADD_AUTH_DEVICE_NAME          "quadd_auth"
+
+#define QUADD_MOD_DEVICE_NAME           "quadd_mod"
+#define QUADD_MOD_AUTH_DEVICE_NAME      "quadd_mod_auth"
 
 #define QUADD_IOCTL     100
 
@@ -345,6 +346,17 @@ enum {
         QM_DEBUG_SAMPLE_TYPE_SOURCE_STOP,
 };
 
+#define QUADD_COMM_FLAG_EXEC    (1U << 0)
+
+struct quadd_comm_data {
+        __u32 pid;
+        __u32 tgid;
+        __u64 time;
+
+        __u16 length;
+        __u32 flags;
+};
+
 struct quadd_debug_data {
         __u8 type;
 
@@ -414,6 +426,7 @@ struct quadd_record_data {
                 struct quadd_power_rate_data    power_rate;
                 struct quadd_hotplug_data       hotplug;
                 struct quadd_sched_data         sched;
+                struct quadd_comm_data          comm;
                 struct quadd_additional_sample  additional_sample;
         };
 } __aligned(4);
@@ -457,34 +470,34 @@ struct quadd_event {
 };
 
 struct quadd_parameters {
-        __u32 freq;
-        __u32 ma_freq;
-        __u32 power_rate_freq;
+        __u32 freq;
+        __u32 ma_freq;
+        __u32 power_rate_freq;
 
-        __u64   backtrace:1,
-                use_freq:1,
-                system_wide:1,
-                debug_samples:1,
-                trace_all_tasks:1;
+        __u64   backtrace:1,
+                use_freq:1,
+                system_wide:1,
+                debug_samples:1,
+                trace_all_tasks:1;
 
-        __u32 pids[QUADD_MAX_PROCESS];
-        __u32 nr_pids;
+        __u32 pids[QUADD_MAX_PROCESS];
+        __u32 nr_pids;
 
-        __u8 package_name[QUADD_MAX_PACKAGE_NAME];
+        __u8 package_name[QUADD_MAX_PACKAGE_NAME];
 
-        struct quadd_event events[QUADD_MAX_COUNTERS];
-        __u32 nr_events;
+        struct quadd_event events[QUADD_MAX_COUNTERS];
+        __u32 nr_events;
 
-        __u32 reserved[16];     /* reserved fields for future extensions */
+        __u32 reserved[16];     /* reserved fields for future extensions */
 };
 
 struct quadd_pmu_setup_for_cpu {
-        __u32 cpuid;
+        __u32 cpuid;
 
-        struct quadd_event events[QUADD_MAX_COUNTERS];
-        __u32 nr_events;
+        struct quadd_event events[QUADD_MAX_COUNTERS];
+        __u32 nr_events;
 
-        __u32 reserved[16];
+        __u32 reserved[16];
 };
 
 struct quadd_events_cap {