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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/include/sys/mm.h $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2011
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#ifndef __SYS_MM_H
#define __SYS_MM_H
#include <stdint.h>
#include <limits.h>
#include <sys/msg.h>
#ifdef __cplusplus
extern "C"
{
#endif
/**
* Page removal operations
*/
enum PAGE_REMOVAL_OPS
{
RELEASE,
FLUSH,
};
/**
* Page permission types mapped to the same bits in the Shadow PTE
*/
enum PAGE_PERMISSIONS
{
READ_ONLY = 0x00000001,
WRITABLE = 0x000000002,
EXECUTABLE = 0x00000004,
WRITE_TRACKED = 0x00000008,
ALLOCATE_FROM_ZERO = 0x00000010,
NO_ALLOCATE_FROM_ZERO = 0x00000020,
NO_ACCESS = 0x00000040,
};
/** @fn mm_alloc_block()
* @brief System call to allocate virtual memory block in the base segment
*
* @param[in] mq - Message queue to be associated with the block
* @param[in] va - Base virtual address of the block to be allocated
* @param[in] size - Requested virtual memory size of the block
*
* @return int - 0 for successful block allocation, non-zero otherwise
*/
int mm_alloc_block(msg_q_t mq,void* va,uint64_t size);
/** @fn mm_remove_pages()
* @brief System call to remove pages by a specified operation
*
* @param[in] i_op - Page removal operation to perform
* @param[in] i_vaddr - Virtual address associated to page(s)
* @param[in] size - Size of memory to perform page removal on
*
* @return int - 0 for successful page removal, non-zero otherwise
*/
int mm_remove_pages(PAGE_REMOVAL_OPS i_op, void* i_vaddr, uint64_t i_size);
/** @fn mm_set_permission()
* @brief System call to set the page permissions
*
* @param[in] va - virtual address of the pages(s) to update permission
* @param[in] size - requested size of memory in bytes
* if size = 0 then only a single page will be updated.
* @param[in] access_type - Type of permission to be given to the page(s)
*
* @return int - 0 for successful update of permission, non-zero otherwise
*/
int mm_set_permission(void* va, uint64_t size, uint64_t access_type);
#ifdef __cplusplus
}
#endif
/** @fs mm_icache_invalidate()
* @brief Invalidate the ICACHE for the given memory
*
* @param[in] i_addr - Destination address
* @param[in] i_cpu_word_count - number of CPU_WORDs (uint64_t)
*/
void mm_icache_invalidate(void * i_addr, size_t i_cpu_word_count);
#endif
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