From a13e68883fb94f2f4a06dfc3438a9a3b67ce8c54 Mon Sep 17 00:00:00 2001
From: Markinus <gitorious@markinus.de>
Date: Thu, 14 Oct 2010 19:46:12 +0200
Subject: [PATCH] htcleo: enable shadow writes for kgsl and writecombine
 Credits to darkstone

---
 drivers/video/msm/gpu/kgsl/kgsl.c          | 3 ++-
 drivers/video/msm/gpu/kgsl/kgsl_drawctxt.c | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/video/msm/gpu/kgsl/kgsl.c b/drivers/video/msm/gpu/kgsl/kgsl.c
index 40bd0786..7d36973e 100644
--- a/drivers/video/msm/gpu/kgsl/kgsl.c
+++ b/drivers/video/msm/gpu/kgsl/kgsl.c
@@ -17,6 +17,7 @@
 */
 #include <linux/miscdevice.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h> 
 #include <linux/fb.h>
 #include <linux/file.h>
 #include <linux/fs.h>
@@ -713,7 +714,7 @@ static int kgsl_ioctl_sharedmem_from_vmalloc(struct kgsl_file_private *private,
 		 * overwrite this memory */
 		dmac_flush_range(vmalloc_area, vmalloc_area + len);
 		KGSL_MEM_INFO("Caching for memory allocation turned off\n");
-		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	} else {
 		KGSL_MEM_INFO("Caching for memory allocation turned on\n");
 	}
diff --git a/drivers/video/msm/gpu/kgsl/kgsl_drawctxt.c b/drivers/video/msm/gpu/kgsl/kgsl_drawctxt.c
index 4489dd4e..dde17133 100644
--- a/drivers/video/msm/gpu/kgsl/kgsl_drawctxt.c
+++ b/drivers/video/msm/gpu/kgsl/kgsl_drawctxt.c
@@ -28,7 +28,7 @@
 #include "kgsl_pm4types.h"
 #include "kgsl_cmdstream.h"
 
-#define DISABLE_SHADOW_WRITES
+//#define DISABLE_SHADOW_WRITES
 /*
 *
 *  Memory Map for Register, Constant & Instruction Shadow, and Command Buffers