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Mali: bifrost: log: Add pid and task_comm of contexts in the info read from node "gpu_memory"

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The output of "cat /sys/kernel/debug/mali0/gpu_memory" would look like:
<dev>                <pages>
mali0                  13312
  <kctx>                  <comm>               <pid>         <pages>
  kctx-0x0000000000000000 system_server        609              1653
  kctx-0x0000000000000000 droid.launcher3      1042             1636
  kctx-0x0000000000000000 ndroid.systemui      802              5859
  kctx-0x0000000000000000 ndroid.settings      915              1566
  kctx-0x0000000000000000 surfaceflinger       310              2590

Signed-off-by: Zhen Chen <chenzhen@rock-chips.com>
Change-Id: Ifc8e4a49cc00aff54feacc1fbcdacf3af255e0a1
This commit is contained in:
Zhen Chen
2023-10-26 16:30:31 +08:00
committed by Tao Huang
parent 61578b7113
commit 8a98ecb28e
1 changed files with 13 additions and 1 deletions
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drivers/gpu/arm/bifrost/mali_kbase_gpu_memory_debugfs.c
+13 -1
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@@ -48,18 +48,30 @@ static int kbasep_gpu_memory_seq_show(struct seq_file *sfile, void *data)
kbdev = list_entry(entry, struct kbase_device, entry);
/* output the total memory usage and cap for this device */
seq_printf(sfile, "<dev> <pages>\n");
seq_printf(sfile, "%-16s %10u\n",
kbdev->devname,
atomic_read(&(kbdev->memdev.used_pages)));
mutex_lock(&kbdev->kctx_list_lock);
seq_printf(sfile, " <kctx> <comm> <pid> <pages>\n");
list_for_each_entry(kctx, &kbdev->kctx_list, kctx_list_link) {
struct pid *pid_struct;
struct task_struct *task;
rcu_read_lock();
pid_struct = find_get_pid(kctx->tgid);
task = pid_task(pid_struct, PIDTYPE_PID);
/* output the memory usage and cap for each kctx
* opened on this device
*/
seq_printf(sfile, " %s-0x%pK %10u\n",
seq_printf(sfile, " %s-0x%pK %-20s %-10d %10u\n",
"kctx",
kctx,
task ? task->comm : "[null comm]",
kctx->tgid,
atomic_read(&(kctx->used_pages)));
put_pid(pid_struct);
rcu_read_unlock();
}
mutex_unlock(&kbdev->kctx_list_lock);
}