2793 

  2794 	/**

  2795 	Indicate whether the data paging media driver supports access by physical address.

  2796 

  2797 	@return 1 if it does, 0 if it does not and KErrNotSupported if data paging is not enabled.

  2798 	*/

  2799 	EVMHalGetPhysicalAccessSupported,

  2800 

  2801 	/**

  2802 	Indicate whether the data paging media driver currently uses physical access for writing out

  2803 	dirty data pages to swap.

  2804 

  2805 	@return 1 if it does, 0 if it does not and KErrNotSupported if data paging is not enabled.

  2806 	*/

  2807 	EVMHalGetUsePhysicalAccess,

  2808 

  2809 	/**

  2810 	Set whether physical access is used for writing out dirty data pages to swap.

  2811 

  2812 	The first argument (a1) should contain zero or one to indicate whether to disable or enable

  2813 	physical access respectively.

  2814 	

  2815 	@return KErrNone if successful, KErrNotSupported if data paging is not enabled.

  2816 	*/

  2817 	EVMHalSetUsePhysicalAccess,

  2818 

  2819 	/**

  2820 	Get the data paging media driver's preferred write size.

  2821 

  2822 	@return Log2 of the preferred write size in pages, or KErrNotSupported if data paging is not

  2823 	enabled.

  2824 	*/

  2825 	EVMHalGetPreferredDataWriteSize,

  2826 

  2827 	/**

  2828 	Get the number of pages that the pager attempts to write at a time when paging out dirty pages

  2829 	to swap.

  2830 

  2831 	@return Log2 of the current write size in pages, or KErrNotSupported if data paging is not

  2832 	enabled.

  2833 	*/

  2834 	EVMHalGetDataWriteSize,

  2835 

  2836 	/**

  2837 	Set the number of pages that the pager attempts to write at a time when paging out dirty pages

  2838 	to swap.

  2839 	

  2840 	The first argument (a1) should contain log2 of the write size in pages.

  2841 

  2842 	@return KErrArgument if the value is out of range, or KErrNotSupported if data paging is not

  2843 	enabled.

  2844 	*/

  2845 	EVMHalSetDataWriteSize,