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Viewing changes to arch/arm/common/mmu/wb.h

  • Committer: Bazaar Package Importer
  • Author(s): Yu Guanghui
  • Date: 2006-08-09 16:30:44 UTC
  • Revision ID: james.westby@ubuntu.com-20060809163044-6efqjm0t2stau23w
Tags: upstream-1.2.0rc8
Import upstream version 1.2.0rc8

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arch/arm/common/mmu/wb.h
 
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#ifndef _MMU_WB_H_
 
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#define _MMU_WB_H_
 
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typedef struct wb_entry_s
 
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{
 
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        ARMword pa;             //phy_addr
 
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        ARMbyte *data;          //data
 
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        int nb;                 //number byte to write
 
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} wb_entry_t;
 
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typedef struct wb_s
 
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{
 
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        int num;                //number of wb_entry
 
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        int nb;                 //number of byte of each entry
 
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        int first;              //
 
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        int last;               //
 
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        int used;               //
 
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        wb_entry_t *entrys;
 
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} wb_t;
 
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typedef struct wb_desc_s
 
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{
 
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        int num;
 
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        int nb;
 
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} wb_desc_t;
 
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/* wb_init
 
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 * @wb_t        :wb_t to init
 
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 * @num         :num of entrys
 
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 * @nw          :num of word of each entry
 
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 *
 
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 * $    -1:error
 
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 *               0:ok
 
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 * */
 
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int mmu_wb_init (wb_t * wb_t, int num, int nb);
 
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/* wb_exit
 
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 * @wb_t :wb_t to exit
 
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 * */
 
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void mmu_wb_exit (wb_t * wb);
 
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/* wb_write_bytes :put bytess in Write Buffer
 
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 * @state:      ARMul_State
 
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 * @wb_t:       write buffer
 
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 * @pa:         physical address
 
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 * @data:       data ptr
 
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 * @n           number of byte to write
 
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 *
 
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 * Note: write buffer merge is not implemented, can be done late
 
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 * */
 
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void
 
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mmu_wb_write_bytess (ARMul_State * state, wb_t * wb_t, ARMword pa,
 
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                     ARMbyte * data, int n);
 
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/* wb_drain_all
 
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 * @wb_t wb_t to drain
 
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 * */
 
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void mmu_wb_drain_all (ARMul_State * state, wb_t * wb_t);
 
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#endif /*_MMU_WB_H_*/