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From f0a49bccbdd910c48aab59e07aed98093f4a0fea Mon Sep 17 00:00:00 2001
From: Madhurkiran Harikrishnan <madhurki@xilinx.com>
Date: Wed, 25 Jan 2017 02:59:40 -0800
Subject: [PATCH 1/2] mali_memory_os_alloc.c: Align with dma_attrs changes from
 4.8 Kernel

From 4.8 Kernel the DMA attributes is no longer a pointer but an unsigned long.

Signed-off-by: Madhurkiran Harikrishnan <madhurki@xilinx.com>
Upstream Status: Pending
---
 .../devicedrv/mali/linux/mali_memory_os_alloc.c    | 25 +++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/driver/src/devicedrv/mali/linux/mali_memory_os_alloc.c b/driver/src/devicedrv/mali/linux/mali_memory_os_alloc.c
index 7f229eb..08fa2fb 100755
--- linux/mali_memory_os_alloc.c
+++ b/linux/mali_memory_os_alloc.c
@@ -26,9 +26,11 @@
 #define MALI_OS_MEMORY_KERNEL_BUFFER_SIZE_IN_PAGES (MALI_OS_MEMORY_KERNEL_BUFFER_SIZE_IN_MB * 256)
 #define MALI_OS_MEMORY_POOL_TRIM_JIFFIES (10 * CONFIG_HZ) /* Default to 10s */
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
 /* Write combine dma_attrs */
 static DEFINE_DMA_ATTRS(dma_attrs_wc);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+static unsigned long dma_attrs_wc;
 #endif
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 0, 0)
@@ -511,10 +513,14 @@ _mali_osk_errcode_t mali_mem_os_get_table_page(mali_dma_addr *phys, mali_io_addr
 	spin_unlock(&mali_mem_page_table_page_pool.lock);
 
 	if (_MALI_OSK_ERR_OK != ret) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
 		*mapping = dma_alloc_attrs(&mali_platform_device->dev,
 					   _MALI_OSK_MALI_PAGE_SIZE, &tmp_phys,
 					   GFP_KERNEL, &dma_attrs_wc);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+		*mapping = dma_alloc_attrs(&mali_platform_device->dev,
+					   _MALI_OSK_MALI_PAGE_SIZE, &tmp_phys,
+					   GFP_KERNEL, dma_attrs_wc);
 #else
 		*mapping = dma_alloc_writecombine(&mali_platform_device->dev,
 						  _MALI_OSK_MALI_PAGE_SIZE, &tmp_phys, GFP_KERNEL);
@@ -550,10 +556,14 @@ void mali_mem_os_release_table_page(mali_dma_addr phys, void *virt)
 	} else {
 		spin_unlock(&mali_mem_page_table_page_pool.lock);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
 		dma_free_attrs(&mali_platform_device->dev,
 			       _MALI_OSK_MALI_PAGE_SIZE, virt, phys,
 			       &dma_attrs_wc);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+		dma_free_attrs(&mali_platform_device->dev,
+				_MALI_OSK_MALI_PAGE_SIZE, virt, phys,
+				dma_attrs_wc);
 #else
 		dma_free_writecombine(&mali_platform_device->dev,
 				      _MALI_OSK_MALI_PAGE_SIZE, virt, phys);
@@ -606,9 +616,12 @@ static void mali_mem_os_page_table_pool_free(size_t nr_to_free)
 
 	/* After releasing the spinlock: free the pages we removed from the pool. */
 	for (i = 0; i < nr_to_free; i++) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
 		dma_free_attrs(&mali_platform_device->dev, _MALI_OSK_MALI_PAGE_SIZE,
 			       virt_arr[i], (dma_addr_t)phys_arr[i], &dma_attrs_wc);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+		dma_free_attrs(&mali_platform_device->dev, _MALI_OSK_MALI_PAGE_SIZE,
+				virt_arr[i], (dma_addr_t)phys_arr[i], dma_attrs_wc);
 #else
 		dma_free_writecombine(&mali_platform_device->dev,
 				      _MALI_OSK_MALI_PAGE_SIZE,
@@ -757,8 +770,10 @@ _mali_osk_errcode_t mali_mem_os_init(void)
 		return _MALI_OSK_ERR_NOMEM;
 	}
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0))
 	dma_set_attr(DMA_ATTR_WRITE_COMBINE, &dma_attrs_wc);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+	dma_attrs_wc |= DMA_ATTR_WRITE_COMBINE;
 #endif
 
 	register_shrinker(&mali_mem_os_allocator.shrinker);
-- 
2.7.4