2751 

  2752 	/**

  2753 	Indicate whether the data paging media driver supports access by physical address.

  2754 

  2755 	@return 1 if it does, 0 if it does not and KErrNotSupported if data paging is not enabled.

  2756 	*/

  2757 	EVMHalGetPhysicalAccessSupported,

  2758 

  2759 	/**

  2760 	Indicate whether the data paging media driver currently uses physical access for writing out

  2761 	dirty data pages to swap.

  2762 

  2763 	@return 1 if it does, 0 if it does not and KErrNotSupported if data paging is not enabled.

  2764 	*/

  2765 	EVMHalGetUsePhysicalAccess,

  2766 

  2767 	/**

  2768 	Set whether physical access is used for writing out dirty data pages to swap.

  2769 

  2770 	The first argument (a1) should contain zero or one to indicate whether to disable or enable

  2771 	physical access respectively.

  2772 	

  2773 	@return KErrNone if successful, KErrNotSupported if data paging is not enabled.

  2774 	*/

  2775 	EVMHalSetUsePhysicalAccess,

  2776 

  2777 	/**

  2778 	Get the data paging media driver's preferred write size.

  2779 

  2780 	@return Log2 of the preferred write size in pages, or KErrNotSupported if data paging is not

  2781 	enabled.

  2782 	*/

  2783 	EVMHalGetPreferredDataWriteSize,

  2784 

  2785 	/**

  2786 	Get the number of pages that the pager attempts to write at a time when paging out dirty pages

  2787 	to swap.

  2788 

  2789 	@return Log2 of the current write size in pages, or KErrNotSupported if data paging is not

  2790 	enabled.

  2791 	*/

  2792 	EVMHalGetDataWriteSize,

  2793 

  2794 	/**

  2795 	Set the number of pages that the pager attempts to write at a time when paging out dirty pages

  2796 	to swap.

  2797 	

  2798 	The first argument (a1) should contain log2 of the write size in pages.

  2799 

  2800 	@return KErrArgument if the value is out of range, or KErrNotSupported if data paging is not

  2801 	enabled.

  2802 	*/

  2803 	EVMHalSetDataWriteSize,