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Commit 0a744a4c authored by Shiraz Hashim's avatar Shiraz Hashim
Browse files

arm: dma-mapping: page align size before flush tlb 



start and end must be page aligned while calling
flush_tlb_kernel_range else the last page may get
missed while invalidation.

Change-Id: Ibaab202c47a475623e197a13191b2fed638ce20b
Signed-off-by: default avatarShiraz Hashim <shashim@codeaurora.org>
parent 133406eb

arch/arm/mm/dma-mapping.c

+1 −0
Original line number Diff line number Diff line
@@ -808,6 +808,7 @@ static void arm_dma_unremap(struct device *dev, void *remapped_addr, 
	unsigned int flags = VM_ARM_DMA_CONSISTENT | VM_USERMAP;

	struct vm_struct *area;



	size = PAGE_ALIGN(size);

	remapped_addr = (void *)((unsigned long)remapped_addr & PAGE_MASK);



	area = find_vm_area(remapped_addr);

arch/arm64/mm/dma-mapping.c

+1 −0
Original line number Diff line number Diff line
@@ -448,6 +448,7 @@ static void arm64_dma_unremap(struct device *dev, void *remapped_addr, 
{

	struct vm_struct *area;



	size = PAGE_ALIGN(size);

	remapped_addr = (void *)((unsigned long)remapped_addr & PAGE_MASK);



	area = find_vm_area(remapped_addr);