[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-powerpc / tce.h

/*
 * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
 * Rewrite, cleanup:
 * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#ifndef _ASM_POWERPC_TCE_H
#define _ASM_POWERPC_TCE_H
#ifdef __KERNEL__

#include <asm/iommu.h>

/*
 * Tces come in two formats, one for the virtual bus and a different
 * format for PCI
 */
#define TCE_VB  0
#define TCE_PCI 1

/* TCE page size is 4096 bytes (1 << 12) */

#define TCE_SHIFT	12
#define TCE_PAGE_SIZE	(1 << TCE_SHIFT)

#define TCE_ENTRY_SIZE		8		/* each TCE is 64 bits */

#define TCE_RPN_MASK		0xfffffffffful  /* 40-bit RPN (4K pages) */
#define TCE_RPN_SHIFT		12
#define TCE_VALID		0x800		/* TCE valid */
#define TCE_ALLIO		0x400		/* TCE valid for all lpars */
#define TCE_PCI_WRITE		0x2		/* write from PCI allowed */
#define TCE_PCI_READ		0x1		/* read from PCI allowed */
#define TCE_VB_WRITE		0x1		/* write from VB allowed */

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_TCE_H */
Commit	Line	Data
c707ffcf OJ	1	/*
	2	* Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
	3	* Rewrite, cleanup:
91f14480	4	* Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
c707ffcf OJ	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
	20
8882a4da DG	21	#ifndef _ASM_POWERPC_TCE_H
8882a4da DG	22	#define _ASM_POWERPC_TCE_H
88ced031	23	#ifdef __KERNEL__
c707ffcf	24
5d2efba6 LV	25	#include <asm/iommu.h>
5d2efba6 LV	26
c707ffcf OJ	27	/*
	28	* Tces come in two formats, one for the virtual bus and a different
	29	* format for PCI
	30	*/
	31	#define TCE_VB 0
	32	#define TCE_PCI 1
	33
d0035c62 OJ	34	/* TCE page size is 4096 bytes (1 << 12) */
	35
	36	#define TCE_SHIFT 12
	37	#define TCE_PAGE_SIZE (1 << TCE_SHIFT)
d0035c62	38
bc97ce95 OJ	39	#define TCE_ENTRY_SIZE 8 /* each TCE is 64 bits */
	40
	41	#define TCE_RPN_MASK 0xfffffffffful /* 40-bit RPN (4K pages) */
	42	#define TCE_RPN_SHIFT 12
	43	#define TCE_VALID 0x800 /* TCE valid */
	44	#define TCE_ALLIO 0x400 /* TCE valid for all lpars */
	45	#define TCE_PCI_WRITE 0x2 /* write from PCI allowed */
	46	#define TCE_PCI_READ 0x1 /* read from PCI allowed */
	47	#define TCE_VB_WRITE 0x1 /* write from VB allowed */
c707ffcf	48
88ced031	49	#endif /* __KERNEL__ */
8882a4da	50	#endif /* _ASM_POWERPC_TCE_H */