msm: kgsl: Increase worker thread priority

kerneltoast · milouk · commit 735b3e0e440d · 2018-12-26T19:56:48.000+02:00
Currently, the kgsl worker thread is erroneosly ranked right below
Android's audio threads in terms of priority.

The kgsl worker thread is in the critical path for rendering frames to the
display, so increase its priority to match the priority of MDSS' kthread (mdss_fb0).

Signed-off-by: Sultan Alsawaf &lt;sultan@kerneltoast.com&gt;
Signed-off-by: Michael &lt;loukerismichalis@gmail.com&gt;
diff --git a/drivers/gpu/msm/kgsl.c b/drivers/gpu/msm/kgsl.c
@@ -4872,7 +4872,7 @@ static void kgsl_core_exit(void)
 static int __init kgsl_core_init(void)
 {
 	int result = 0;
-	struct sched_param param = { .sched_priority = 6 };
+	struct sched_param param = { .sched_priority = 16 };
 
 	/* alloc major and minor device numbers */
 	result = alloc_chrdev_region(&kgsl_driver.major, 0, KGSL_DEVICE_MAX,

Original file line number	Diff line number	Diff line change
`@@ -4872,7 +4872,7 @@ static void kgsl_core_exit(void)`
`4872`	`4872`	`static int __init kgsl_core_init(void)`
`4873`	`4873`	`{`
`4874`	`4874`	`int result = 0;`
`4875`		`- struct sched_param param = { .sched_priority = 6 };`
	`4875`	`+ struct sched_param param = { .sched_priority = 16 };`
`4876`	`4876`
`4877`	`4877`	`/* alloc major and minor device numbers */`
`4878`	`4878`	`result = alloc_chrdev_region(&kgsl_driver.major, 0, KGSL_DEVICE_MAX,`