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/*
****************************************************************************
* Copyright 2011 Broadcom Corporation. All rights reserved.
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available at
* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a
* license other than the GPL, without Broadcom's express prior written
* consent.
****************************************************************************
*/
#ifndef __VC_SM_KNL_H__INCLUDED__
#define __VC_SM_KNL_H__INCLUDED__
#if !defined(__KERNEL__)
#error "This interface is for kernel use only..."
#endif
/* Type of memory to be locked (ie mapped) */
enum vc_sm_lock_cache_mode {
VC_SM_LOCK_CACHED,
VC_SM_LOCK_NON_CACHED,
};
/* Allocate a shared memory handle and block. */
int vc_sm_alloc(struct vc_sm_alloc_t *alloc, int *handle);
/* Free a previously allocated shared memory handle and block. */
int vc_sm_free(int handle);
/* Lock a memory handle for use by kernel. */
int vc_sm_lock(int handle, enum vc_sm_lock_cache_mode mode,
unsigned long *data);
/* Unlock a memory handle in use by kernel. */
int vc_sm_unlock(int handle, int flush, int no_vc_unlock);
/* Get an internal resource handle mapped from the external one. */
int vc_sm_int_handle(int handle);
/* Map a shared memory region for use by kernel. */
int vc_sm_map(int handle, unsigned int sm_addr,
enum vc_sm_lock_cache_mode mode, unsigned long *data);
/* Import a block of memory into the GPU space. */
int vc_sm_import_dmabuf(struct dma_buf *dmabuf, int *handle);
#endif /* __VC_SM_KNL_H__INCLUDED__ */
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