3 files changed, 1 insertions, 60 deletions

diff --git a/mali_pixel/memory_group_manager.c b/mali_pixel/memory_group_manager.c
index 81abfb4..03c6f74 100644
--- a/mali_pixel/memory_group_manager.c
+++ b/mali_pixel/memory_group_manager.c
@@ -533,14 +533,6 @@ static vm_fault_t mgm_vmf_insert_pfn_prot(
 	return fault;
 }
 
-void pixel_mgm_slc_update_signal(struct memory_group_manager_device* mgm_dev, u64 signal)
-{
-	struct mgm_groups *const data = mgm_dev->data;
-
-	slc_update_signal(&data->slc_data, signal);
-}
-EXPORT_SYMBOL_GPL(pixel_mgm_slc_update_signal);
-
 void pixel_mgm_slc_inc_refcount(struct memory_group_manager_device* mgm_dev)
 {
 	struct mgm_groups *const data = mgm_dev->data;
diff --git a/mali_pixel/pixel_slc.c b/mali_pixel/pixel_slc.c
index f06d495..78f1b74 100644
--- a/mali_pixel/pixel_slc.c
+++ b/mali_pixel/pixel_slc.c
@@ -6,13 +6,11 @@
  */
 
 #include <linux/atomic.h>
-#include <linux/io.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/dev_printk.h>
 /* Pixel integration includes */
-#include <soc/google/acpm_ipc_ctrl.h>
 #include "pixel_slc.h"
 
 
@@ -40,7 +38,6 @@
 #define PBHA_BIT_MASK (0xf)
 
 #define PARTITION_DISABLE_HYSTERESIS (msecs_to_jiffies(100))
-#define PARTITION_ENABLE_THRESHOLD   (7)
 
 
 /**
@@ -56,7 +53,7 @@ static bool partition_required(struct slc_partition *pt)
 {
 	lockdep_assert_held(&pt->lock);
 
-	return atomic_read(&pt->refcount) && (pt->signal >= PARTITION_ENABLE_THRESHOLD);
+	return atomic_read(&pt->refcount);
 }
 
 /**
@@ -228,29 +225,6 @@ void slc_dec_refcount(struct slc_data *data)
 	}
 }
 
-void slc_update_signal(struct slc_data *data, u64 signal)
-{
-	struct slc_partition *pt = &data->partition;
-	unsigned long flags;
-
-	spin_lock_irqsave(&pt->lock, flags);
-
-	/* Use ACPM signal when available */
-	if (data->signal)
-		pt->signal = ioread64((u64 __iomem*)data->signal);
-	else
-		pt->signal = signal;
-
-	if (partition_required(pt))
-		/* Enable the partition immediately if it's required */
-		enable_partition(data, pt);
-	else
-		/* Lazily disable the partition if it's no longer required */
-		queue_disable_worker(data);
-
-	spin_unlock_irqrestore(&pt->lock, flags);
-}
-
 /**
  * init_partition - Register and initialize a partition with the SLC driver.
  *
@@ -290,7 +264,6 @@ static int init_partition(struct slc_data *data, struct slc_partition *pt, u32 i
 		.pbha = pbha,
 		.enabled = false,
 		.refcount = ATOMIC_INIT(0),
-		.signal = 0,
 	};
 	spin_lock_init(&pt->lock);
 
@@ -343,22 +316,6 @@ int slc_init_data(struct slc_data *data, struct device* dev)
 		goto err_exit;
 	}
 
-	if (IS_ENABLED(PIXEL_GPU_SLC_ACPM_SIGNAL)) {
-		u32 size;
-
-		/* Obtain a handle to the ACPM provided GPU partition signal */
-		if ((ret = acpm_ipc_get_buffer("GPU_SIGNAL", &data->signal, &size))) {
-			dev_err(data->dev, "failed to retrieve SLC GPU signal: %d", ret);
-			goto err_exit;
-		}
-
-		/* Validate the signal buffer size */
-		if (size != sizeof(u64)) {
-			dev_err(data->dev, "SLC GPU signal size incorrect: %d", size);
-			goto err_exit;
-		}
-	}
-
 	if ((ret = init_partition(data, &data->partition, 0)))
 		goto pt_init_err_exit;
 
diff --git a/mali_pixel/pixel_slc.h b/mali_pixel/pixel_slc.h
index 1ac3da4..bcaf1ff 100644
--- a/mali_pixel/pixel_slc.h
+++ b/mali_pixel/pixel_slc.h
@@ -51,9 +51,6 @@ struct slc_partition {
 
 	/** @lock: Lock protecting enable/disable ops on this partition */
 	spinlock_t lock;
-
-	/** @signal: Partition enable/disable signal from SLC governor */
-	u64 signal;
 };
 
 /**
@@ -71,9 +68,6 @@ struct slc_data {
 
 	/** @disable_work: Work item used to queue lazy SLC partition disable ops. */
 	struct delayed_work disable_work;
-
-	/** @signal: Partition enable/disable signal from SLC governor. */
-	char __iomem *signal;
 };
 
 int slc_init_data(struct slc_data *data, struct device* dev);
@@ -88,6 +82,4 @@ void slc_inc_refcount(struct slc_data *data);
 
 void slc_dec_refcount(struct slc_data *data);
 
-void slc_update_signal(struct slc_data *data, u64 signal);
-
 #endif /* _PIXEL_SLC_H_ */