C++ (Cpp) _mali_ukk_mem_mmap Examples

Example #1

File: mali_kernel_linux.c Project: skelton/Ainol_fire_kernel

/** @note munmap handler is done by vma close handler */
static int mali_mmap(struct file * filp, struct vm_area_struct * vma)
{
	struct mali_session_data * session_data;
	_mali_uk_mem_mmap_s args = {0, };

    session_data = (struct mali_session_data *)filp->private_data;
	if (NULL == session_data)
	{
		MALI_PRINT_ERROR(("mmap called without any session data available\n"));
		return -EFAULT;
	}

	MALI_DEBUG_PRINT(4, ("MMap() handler: start=0x%08X, phys=0x%08X, size=0x%08X\n", (unsigned int)vma->vm_start, (unsigned int)(vma->vm_pgoff << PAGE_SHIFT), (unsigned int)(vma->vm_end - vma->vm_start)) );

	/* Re-pack the arguments that mmap() packed for us */
	args.ctx = session_data;
	args.phys_addr = vma->vm_pgoff << PAGE_SHIFT;
	args.size = vma->vm_end - vma->vm_start;
	args.ukk_private = vma;

	/* Call the common mmap handler */
	MALI_CHECK(_MALI_OSK_ERR_OK ==_mali_ukk_mem_mmap( &args ), -EFAULT);

    return 0;
}

Example #2

File: mali_kernel_linux.c Project: tvall43/Samsung_SM-V700_Kernel

/** @note munmap handler is done by vma close handler */
static int mali_mmap(struct file * filp, struct vm_area_struct * vma)
{
	struct mali_session_data * session_data;
	_mali_uk_mem_mmap_s args = {0, };

    session_data = (struct mali_session_data *)filp->private_data;
	if (NULL == session_data)
	{
		MALI_PRINT_ERROR(("mmap called without any session data available\n"));
		return -EFAULT;
	}

	MALI_DEBUG_PRINT(4, ("MMap() handler: start=0x%08X, phys=0x%08X, size=0x%08X vma->flags 0x%08x\n", (unsigned int)vma->vm_start, (unsigned int)(vma->vm_pgoff << PAGE_SHIFT), (unsigned int)(vma->vm_end - vma->vm_start), vma->vm_flags));

	/* Re-pack the arguments that mmap() packed for us */
	args.ctx = session_data;
	args.phys_addr = vma->vm_pgoff << PAGE_SHIFT;
	args.size = vma->vm_end - vma->vm_start;
	args.ukk_private = vma;

	if ( VM_SHARED== (VM_SHARED  & vma->vm_flags))
	{
		args.cache_settings = MALI_CACHE_STANDARD ;
		MALI_DEBUG_PRINT(3,("Allocate - Standard - Size: %d kb\n", args.size/1024));
	}
	else
	{
		args.cache_settings = MALI_CACHE_GP_READ_ALLOCATE;
		MALI_DEBUG_PRINT(3,("Allocate - GP Cached - Size: %d kb\n", args.size/1024));
	}
	/* Setting it equal to VM_SHARED and not Private, which would have made the later io_remap fail for MALI_CACHE_GP_READ_ALLOCATE */
	vma->vm_flags = 0x000000fb;

	/* Call the common mmap handler */
	MALI_CHECK(_MALI_OSK_ERR_OK ==_mali_ukk_mem_mmap( &args ), -EFAULT);

    return 0;
}