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 2c95146d7a1a64bf76367edacf12d1b5c2c3705d..4a0b9e81fc3d16d471d2436dfa507d201fc1719e 100644 (file)
--- 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 b4801092cf55f4b3b78490b479e8965814d8c2ab..c4e2a264a4155e2c24c3a513544cb1600d4441a1 100644 (file)
--- 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 = {