From e911ee2e349fd1462749547447cae95250560b3d Mon Sep 17 00:00:00 2001
From: ZhuangXiaoLiang <zhuangxl@rock-chips.com>
Date: Mon, 6 Nov 2017 21:20:41 +0800
Subject: [PATCH] RK3368 GPU: Update to Rogue 5.13.

Add gpu performance interface for cts.

Change-Id: I6d0259e97b4fe140eb1e63196e1008adf4a33c66
Signed-off-by: ZhuangXiaoLiang <zhuangxl@rock-chips.com>
---
 drivers/staging/imgtec/pvr_drm.c              | 28 +++++++++++++++++++
 drivers/staging/imgtec/pvrversion.h           |  4 ++-
 .../staging/imgtec/rogue/pvr_dvfs_device.c    |  3 ++
 .../staging/imgtec/rogue/pvr_dvfs_device.h    |  2 ++
 4 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/imgtec/pvr_drm.c b/drivers/staging/imgtec/pvr_drm.c
index 72e5b4f5d59f..24def946a82f 100644
--- a/drivers/staging/imgtec/pvr_drm.c
+++ b/drivers/staging/imgtec/pvr_drm.c
@@ -214,6 +214,33 @@ static long pvr_compat_ioctl(struct file *file, unsigned int cmd,
 }
 #endif /* defined(CONFIG_COMPAT) */
 
+int g_gpu_performance = -1;
+static ssize_t  PVRSRV_Perf_Write(struct file *pfile, const char __user *ubuf,
+				size_t count, loff_t *ploff)
+{
+	char kbuf[10];
+	long enable = -1;
+
+	if (count > sizeof(kbuf))
+		count = sizeof(kbuf);
+
+	if (copy_from_user(kbuf, ubuf, count)) {
+		DRM_ERROR("%s: copy_to_user failed!\n", __func__);
+		return -EFAULT;
+	}
+
+	kbuf[count - 1] = '\0';
+	if (kstrtol(kbuf, 10, &enable) != 0) {
+		DRM_ERROR("%s: kstrtol failed!\n", __func__);
+		return -EFAULT;
+	}
+
+	if (g_gpu_performance != enable)
+		g_gpu_performance = enable;
+
+	return count;
+}
+
 static const struct file_operations pvr_drm_fops = {
 	.owner			= THIS_MODULE,
 	.open			= drm_open,
@@ -231,6 +258,7 @@ static const struct file_operations pvr_drm_fops = {
 	.mmap			= PVRSRV_MMap,
 	.poll			= drm_poll,
 	.read			= drm_read,
+	.write			= PVRSRV_Perf_Write,
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0))
 	.fasync			= drm_fasync,
 #endif
diff --git a/drivers/staging/imgtec/pvrversion.h b/drivers/staging/imgtec/pvrversion.h
index fc1391c4f055..8312a2d18313 100644
--- a/drivers/staging/imgtec/pvrversion.h
+++ b/drivers/staging/imgtec/pvrversion.h
@@ -128,6 +128,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  * N 5.12
  *		1. Fix PVRSRVDevicePreClockSpeedChange failed.
  *		2. Apply PP_fix_KM patch from IMG.
+ * N 5.13
+ *		Add gpu performance interface for cts.
  */
 
 #define PVR_STR(X) #X
@@ -155,5 +157,5 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define PVRVERSION_UNPACK_MIN(VERSION) (((VERSION) >> 0) & 0xFFFF)
 
 //chenli:define rockchip version
-#define RKVERSION                   "Rogue N 5.12"
+#define RKVERSION                   "Rogue N 5.13"
 #endif /* _PVRVERSION_H_ */
diff --git a/drivers/staging/imgtec/rogue/pvr_dvfs_device.c b/drivers/staging/imgtec/rogue/pvr_dvfs_device.c
index 59c8f4a839db..94804a43dba3 100644
--- a/drivers/staging/imgtec/rogue/pvr_dvfs_device.c
+++ b/drivers/staging/imgtec/rogue/pvr_dvfs_device.c
@@ -100,6 +100,9 @@ static IMG_INT32 devfreq_target(struct device *dev, long unsigned *requested_fre
 		return 0;
 	}
 
+	if (g_gpu_performance == 1)
+		*requested_freq = psDVFSDevice->psDevFreq->max_freq;
+
 	rcu_read_lock();
 	opp = devfreq_recommended_opp(dev, requested_freq, flags);
 	if (IS_ERR(opp)) {
diff --git a/drivers/staging/imgtec/rogue/pvr_dvfs_device.h b/drivers/staging/imgtec/rogue/pvr_dvfs_device.h
index 010caa0c2080..d7385f49fefd 100644
--- a/drivers/staging/imgtec/rogue/pvr_dvfs_device.h
+++ b/drivers/staging/imgtec/rogue/pvr_dvfs_device.h
@@ -48,6 +48,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "pvrsrv_error.h"
 #include "img_types.h"
 
+extern int g_gpu_performance;
+
 PVRSRV_ERROR InitDVFS(PVRSRV_DEVICE_NODE *psDeviceNode);
 
 void DeinitDVFS(PVRSRV_DEVICE_NODE *psDeviceNode);