misc: tegra-profiler: add user_mode flag

Tegra Profiler: add user_mode flag into mmap sample

Bug 1447904

Change-Id: Ieba1025abac78b2682c0445e608fd0137dbe2379
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: http://git-master/r/365901
(cherry picked from commit bbbdb78281524c75706d6b4162182a514355a1a0)
Reviewed-on: http://git-master/r/368217
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Tested-by: Maxim Morin <mmorin@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

6 files changed, 32 insertions, 18 deletions

diff --git a/drivers/misc/tegra-profiler/comm.c b/drivers/misc/tegra-profiler/comm.c
index ed2540c21166..98f17a228305 100644
--- a/drivers/misc/tegra-profiler/comm.c
+++ b/drivers/misc/tegra-profiler/comm.c
@@ -290,8 +290,10 @@ static ssize_t read_sample(char __user *buffer, size_t max_length)
 		break;
 
 	case QUADD_RECORD_TYPE_MMAP:
+		length_extra = sizeof(u64);
+
 		if (record.mmap.filename_length > 0) {
-			length_extra = record.mmap.filename_length;
+			length_extra += record.mmap.filename_length;
 		} else {
 			pr_err("Error: filename is empty\n");
 			goto out;
diff --git a/drivers/misc/tegra-profiler/hrt.c b/drivers/misc/tegra-profiler/hrt.c
index 638d08d4fab1..c6e7bc477b91 100644
--- a/drivers/misc/tegra-profiler/hrt.c
+++ b/drivers/misc/tegra-profiler/hrt.c
@@ -465,13 +465,16 @@ void __quadd_task_sched_out(struct task_struct *prev,
 
 void __quadd_event_mmap(struct vm_area_struct *vma)
 {
+	struct quadd_parameters *param;
+
 	if (likely(!hrt.active))
 		return;
 
 	if (!is_profile_process(current))
 		return;
 
-	quadd_process_mmap(vma);
+	param = &hrt.quadd_ctx->param;
+	quadd_process_mmap(vma, param->pids[0]);
 }
 EXPORT_SYMBOL(__quadd_event_mmap);
 
diff --git a/drivers/misc/tegra-profiler/mmap.c b/drivers/misc/tegra-profiler/mmap.c
index 81abf36c7145..cb513bfa7a80 100644
--- a/drivers/misc/tegra-profiler/mmap.c
+++ b/drivers/misc/tegra-profiler/mmap.c
@@ -30,10 +30,11 @@
 
 static void
 put_mmap_sample(struct quadd_mmap_data *s, char *filename,
-		size_t length)
+		size_t length, unsigned long pgoff)
 {
 	struct quadd_record_data r;
-	struct quadd_iovec vec;
+	struct quadd_iovec vec[2];
+	u64 pgoff_val = pgoff << PAGE_SHIFT;
 
 	r.magic = QUADD_RECORD_MAGIC;
 	r.record_type = QUADD_RECORD_TYPE_MMAP;
@@ -41,16 +42,19 @@ put_mmap_sample(struct quadd_mmap_data *s, char *filename,
 	memcpy(&r.mmap, s, sizeof(*s));
 	r.mmap.filename_length = length;
 
-	vec.base = filename;
-	vec.len = length;
+	vec[0].base = &pgoff_val;
+	vec[0].len = sizeof(pgoff_val);
 
-	pr_debug("MMAP: pid: %u, file_name: '%s', addr: %#llx - %#llx, len: %llx, pgoff: %#x\n",
-		s->pid, filename, s->addr, s->addr + s->len, s->len, s->pgoff);
+	vec[1].base = filename;
+	vec[1].len = length;
 
-	quadd_put_sample(&r, &vec, 1);
+	pr_debug("MMAP: pid: %u, file_name: '%s', addr: %#llx - %#llx, len: %llx, pgoff: %#lx\n",
+		 s->pid, filename, s->addr, s->addr + s->len, s->len, pgoff);
+
+	quadd_put_sample(&r, vec, ARRAY_SIZE(vec));
 }
 
-void quadd_process_mmap(struct vm_area_struct *vma)
+void quadd_process_mmap(struct vm_area_struct *vma, pid_t pid)
 {
 	struct file *vm_file;
 	struct path *path;
@@ -81,14 +85,16 @@ void quadd_process_mmap(struct vm_area_struct *vma)
 	if (strstr(file_name, " (deleted)"))
 		goto out;
 
+	sample.pid = pid;
+	sample.user_mode = 1;
+
 	sample.addr = vma->vm_start;
 	sample.len = vma->vm_end - vma->vm_start;
-	sample.pgoff = vma->vm_pgoff;
 
 	length = strlen(file_name) + 1;
 	length_aligned = ALIGN(length, sizeof(u64));
 
-	put_mmap_sample(&sample, file_name, length_aligned);
+	put_mmap_sample(&sample, file_name, length_aligned, vma->vm_pgoff);
 
 out:
 	kfree(tmp_buf);
@@ -147,11 +153,13 @@ int quadd_get_current_mmap(pid_t pid)
 		length_aligned = ALIGN(length, sizeof(u64));
 
 		sample.pid = pid;
+		sample.user_mode = 1;
+
 		sample.addr = vma->vm_start;
 		sample.len = vma->vm_end - vma->vm_start;
-		sample.pgoff = vma->vm_pgoff;
 
-		put_mmap_sample(&sample, file_name, length_aligned);
+		put_mmap_sample(&sample, file_name, length_aligned,
+				vma->vm_pgoff);
 	}
 	kfree(tmp_buf);
 
diff --git a/drivers/misc/tegra-profiler/mmap.h b/drivers/misc/tegra-profiler/mmap.h
index 51c150058f0e..4928f939f16c 100644
--- a/drivers/misc/tegra-profiler/mmap.h
+++ b/drivers/misc/tegra-profiler/mmap.h
@@ -19,7 +19,7 @@
 
 #include <linux/types.h>
 
-void quadd_process_mmap(struct vm_area_struct *vma);
+void quadd_process_mmap(struct vm_area_struct *vma, pid_t pid);
 int quadd_get_current_mmap(pid_t pid);
 
 #endif  /* __QUADD_MMAP_H */
diff --git a/drivers/misc/tegra-profiler/version.h b/drivers/misc/tegra-profiler/version.h
index d4a6b60f8ceb..46643a29ccc1 100644
--- a/drivers/misc/tegra-profiler/version.h
+++ b/drivers/misc/tegra-profiler/version.h
@@ -18,7 +18,7 @@
 #ifndef __QUADD_VERSION_H
 #define __QUADD_VERSION_H
 
-#define QUADD_MODULE_VERSION		"1.46"
+#define QUADD_MODULE_VERSION		"1.48"
 #define QUADD_MODULE_BRANCH		"Dev"
 
 #endif	/* __QUADD_VERSION_H */
diff --git a/include/linux/tegra_profiler.h b/include/linux/tegra_profiler.h
index fd9a2b63946e..15205e777550 100644
--- a/include/linux/tegra_profiler.h
+++ b/include/linux/tegra_profiler.h
@@ -19,7 +19,7 @@
 
 #include <linux/ioctl.h>
 
-#define QUADD_SAMPLES_VERSION	19
+#define QUADD_SAMPLES_VERSION	20
 #define QUADD_IO_VERSION	9
 
 #define QUADD_IO_VERSION_DYNAMIC_RB		5
@@ -151,10 +151,11 @@ struct quadd_sample_data {
 
 struct quadd_mmap_data {
 	u32 pid;
+
 	u64 addr;
 	u64 len;
-	u32 pgoff;
 
+	u8 user_mode:1;
 	u16 filename_length;
 };