From: Jiyu Yang <Jiyu.Yang@amlogic.com>
Date: Thu, 4 Jan 2018 06:32:28 +0000 (+0800)
Subject: PD#133451 add l2_max_reads for custom
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8247b6ea2a68a5e93ad3ccbf90d94aac01f028ef;p=GitHub%2FLineageOS%2FG12%2Fandroid_hardware_amlogic_kernel-modules_mali-driver.git

PD#133451 add l2_max_reads for custom

/sys/class/mpgpu/l2_max_reads
AX_READ Register bit assignments
Bits Name Function
[31:5] - Reserved, read as zero
[4:0] Max_Reads Limit the number of outstanding read transactions to this amount

Change-Id: Idae8fa0a8e85f90749a62f6972b5bbe176008cd2
---

diff --git a/mali/linux/mali_kernel_linux.c b/mali/linux/mali_kernel_linux.c
index 2c95146..4a0b9e8 100644
--- a/mali/linux/mali_kernel_linux.c
+++ b/mali/linux/mali_kernel_linux.c
@@ -112,7 +112,7 @@ module_param(mali_max_job_runtime, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP |
 MODULE_PARM_DESC(mali_max_job_runtime, "Maximum allowed job runtime in msecs.\nJobs will be killed after this no matter what");
 
 extern int mali_l2_max_reads;
-module_param(mali_l2_max_reads, int, S_IRUSR | S_IRGRP | S_IROTH);
+module_param(mali_l2_max_reads, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH); /* rw-rw-r-- */
 MODULE_PARM_DESC(mali_l2_max_reads, "Maximum reads for Mali L2 cache");
 
 extern unsigned int mali_dedicated_mem_start;
diff --git a/utgard/platform/meson_bu/mpgpu.c b/utgard/platform/meson_bu/mpgpu.c
index b480109..c4e2a26 100644
--- a/utgard/platform/meson_bu/mpgpu.c
+++ b/utgard/platform/meson_bu/mpgpu.c
@@ -32,6 +32,8 @@
 //#include "mali_pp_scheduler.h"
 #include "meson_main.h"
 
+extern int mali_l2_max_reads;
+
 #if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
 static ssize_t domain_stat_read(struct class *class,
 		struct class_attribute *attr, char *buf)
@@ -313,6 +315,29 @@ static ssize_t current_pp_write(struct class *class,
 	return count;
 }
 
+static ssize_t l2_max_reads_read(struct class *class,
+		struct class_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", mali_l2_max_reads);
+}
+
+static ssize_t l2_max_reads_write(struct class *class,
+		struct class_attribute *attr, const char *buf, size_t count)
+{
+	int ret;
+	unsigned int val;
+
+	ret = kstrtouint(buf, 10, &val);
+	if (0 != ret)
+	{
+		return -EINVAL;
+	}
+	mali_l2_max_reads  = val;
+
+	return 0;
+}
+
+
 static struct class_attribute mali_class_attrs[] = {
 	__ATTR(domain_stat,	0644, domain_stat_read, NULL),
 	__ATTR(mpgpucmd,	0644, NULL,		mpgpu_write),
@@ -323,6 +348,7 @@ static struct class_attribute mali_class_attrs[] = {
 	__ATTR(max_pp,		0644, max_pp_read,	max_pp_write),
 	__ATTR(cur_freq,	0644, freq_read,	freq_write),
 	__ATTR(cur_pp,		0644, current_pp_read,	current_pp_write),
+	__ATTR(l2_max_reads,	0644, l2_max_reads_read,l2_max_reads_write),
 };
 
 static struct class mpgpu_class = {