arch/powerpc/include/asm/prom.h - kernel/bruno - Git at Google

 #ifndef _POWERPC_PROM_H
 #define _POWERPC_PROM_H
 #ifdef __KERNEL__

 /*
  * Definitions for talking to the Open Firmware PROM on
  * Power Macintosh computers.
  *
  * Copyright (C) 1996-2005 Paul Mackerras.
  *
  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  *
  * 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.
  */
 #include <linux/types.h>
 #include <asm/irq.h>
 #include <linux/atomic.h>

 /* These includes should be removed once implicit includes are cleaned up. */
 #include <linux/of.h>
 #include <linux/of_fdt.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>

 #define OF_DT_BEGIN_NODE	0x1		/* Start of node, full name */
 #define OF_DT_END_NODE		0x2		/* End node */
 #define OF_DT_PROP		0x3		/* Property: name off, size,
 						 * content */
 #define OF_DT_NOP		0x4		/* nop */
 #define OF_DT_END		0x9

 #define OF_DT_VERSION		0x10

 /*
  * This is what gets passed to the kernel by prom_init or kexec
  *
  * The dt struct contains the device tree structure, full pathes and
  * property contents. The dt strings contain a separate block with just
  * the strings for the property names, and is fully page aligned and
  * self contained in a page, so that it can be kept around by the kernel,
  * each property name appears only once in this page (cheap compression)
  *
  * the mem_rsvmap contains a map of reserved ranges of physical memory,
  * passing it here instead of in the device-tree itself greatly simplifies
  * the job of everybody. It's just a list of u64 pairs (base/size) that
  * ends when size is 0
  */
 struct boot_param_header {
 	__be32	magic;			/* magic word OF_DT_HEADER */
 	__be32	totalsize;		/* total size of DT block */
 	__be32	off_dt_struct;		/* offset to structure */
 	__be32	off_dt_strings;		/* offset to strings */
 	__be32	off_mem_rsvmap;		/* offset to memory reserve map */
 	__be32	version;		/* format version */
 	__be32	last_comp_version;	/* last compatible version */
 	/* version 2 fields below */
 	__be32	boot_cpuid_phys;	/* Physical CPU id we're booting on */
 	/* version 3 fields below */
 	__be32	dt_strings_size;	/* size of the DT strings block */
 	/* version 17 fields below */
 	__be32	dt_struct_size;		/* size of the DT structure block */
 };

 /*
  * OF address retreival & translation
  */

 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
 void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
 			 unsigned long *busno, unsigned long *phys,
 			 unsigned long *size);

 extern void of_instantiate_rtc(void);

 extern int of_get_ibm_chip_id(struct device_node *np);

 /* The of_drconf_cell struct defines the layout of the LMB array
  * specified in the device tree property
  * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory
  */
 struct of_drconf_cell {
 	u64	base_addr;
 	u32	drc_index;
 	u32	reserved;
 	u32	aa_index;
 	u32	flags;
 };

 #define DRCONF_MEM_ASSIGNED	0x00000008
 #define DRCONF_MEM_AI_INVALID	0x00000040
 #define DRCONF_MEM_RESERVED	0x00000080

 /*
  * There are two methods for telling firmware what our capabilities are.
  * Newer machines have an "ibm,client-architecture-support" method on the
  * root node.  For older machines, we have to call the "process-elf-header"
  * method in the /packages/elf-loader node, passing it a fake 32-bit
  * ELF header containing a couple of PT_NOTE sections that contain
  * structures that contain various information.
  */

 /* New method - extensible architecture description vector. */

 /* Option vector bits - generic bits in byte 1 */
 #define OV_IGNORE		0x80	/* ignore this vector */
 #define OV_CESSATION_POLICY	0x40	/* halt if unsupported option present*/

 /* Option vector 1: processor architectures supported */
 #define OV1_PPC_2_00		0x80	/* set if we support PowerPC 2.00 */
 #define OV1_PPC_2_01		0x40	/* set if we support PowerPC 2.01 */
 #define OV1_PPC_2_02		0x20	/* set if we support PowerPC 2.02 */
 #define OV1_PPC_2_03		0x10	/* set if we support PowerPC 2.03 */
 #define OV1_PPC_2_04		0x08	/* set if we support PowerPC 2.04 */
 #define OV1_PPC_2_05		0x04	/* set if we support PowerPC 2.05 */
 #define OV1_PPC_2_06		0x02	/* set if we support PowerPC 2.06 */
 #define OV1_PPC_2_07		0x01	/* set if we support PowerPC 2.07 */

 /* Option vector 2: Open Firmware options supported */
 #define OV2_REAL_MODE		0x20	/* set if we want OF in real mode */

 /* Option vector 3: processor options supported */
 #define OV3_FP			0x80	/* floating point */
 #define OV3_VMX			0x40	/* VMX/Altivec */
 #define OV3_DFP			0x20	/* decimal FP */

 /* Option vector 4: IBM PAPR implementation */
 #define OV4_MIN_ENT_CAP		0x01	/* minimum VP entitled capacity */

 /* Option vector 5: PAPR/OF options supported
  * These bits are also used in firmware_has_feature() to validate
  * the capabilities reported for vector 5 in the device tree so we
  * encode the vector index in the define and use the OV5_FEAT()
  * and OV5_INDX() macros to extract the desired information.
  */
 #define OV5_FEAT(x)	((x) & 0xff)
 #define OV5_INDX(x)	((x) >> 8)
 #define OV5_LPAR		0x0280	/* logical partitioning supported */
 #define OV5_SPLPAR		0x0240	/* shared-processor LPAR supported */
 /* ibm,dynamic-reconfiguration-memory property supported */
 #define OV5_DRCONF_MEMORY	0x0220
 #define OV5_LARGE_PAGES		0x0210	/* large pages supported */
 #define OV5_DONATE_DEDICATE_CPU	0x0202	/* donate dedicated CPU support */
 #define OV5_MSI			0x0201	/* PCIe/MSI support */
 #define OV5_CMO			0x0480	/* Cooperative Memory Overcommitment */
 #define OV5_XCMO		0x0440	/* Page Coalescing */
 #define OV5_TYPE1_AFFINITY	0x0580	/* Type 1 NUMA affinity */
 #define OV5_PRRN		0x0540	/* Platform Resource Reassignment */
 #define OV5_PFO_HW_RNG		0x0E80	/* PFO Random Number Generator */
 #define OV5_PFO_HW_842		0x0E40	/* PFO Compression Accelerator */
 #define OV5_PFO_HW_ENCR		0x0E20	/* PFO Encryption Accelerator */
 #define OV5_SUB_PROCESSORS	0x0F01	/* 1,2,or 4 Sub-Processors supported */

 /* Option Vector 6: IBM PAPR hints */
 #define OV6_LINUX		0x02	/* Linux is our OS */

 /*
  * The architecture vector has an array of PVR mask/value pairs,
  * followed by # option vectors - 1, followed by the option vectors.
  */
 extern unsigned char ibm_architecture_vec[];

 #endif /* __KERNEL__ */
 #endif /* _POWERPC_PROM_H */
	#ifndef _POWERPC_PROM_H
	#define _POWERPC_PROM_H
	#ifdef __KERNEL__

	/*
	* Definitions for talking to the Open Firmware PROM on
	* Power Macintosh computers.
	*
	* Copyright (C) 1996-2005 Paul Mackerras.
	*
	* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
	*
	* 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.
	*/
	#include <linux/types.h>
	#include <asm/irq.h>
	#include <linux/atomic.h>

	/* These includes should be removed once implicit includes are cleaned up. */
	#include <linux/of.h>
	#include <linux/of_fdt.h>
	#include <linux/of_address.h>
	#include <linux/of_irq.h>
	#include <linux/platform_device.h>

	#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
	#define OF_DT_END_NODE 0x2 /* End node */
	#define OF_DT_PROP 0x3 /* Property: name off, size,
	* content */
	#define OF_DT_NOP 0x4 /* nop */
	#define OF_DT_END 0x9

	#define OF_DT_VERSION 0x10

	/*
	* This is what gets passed to the kernel by prom_init or kexec
	*
	* The dt struct contains the device tree structure, full pathes and
	* property contents. The dt strings contain a separate block with just
	* the strings for the property names, and is fully page aligned and
	* self contained in a page, so that it can be kept around by the kernel,
	* each property name appears only once in this page (cheap compression)
	*
	* the mem_rsvmap contains a map of reserved ranges of physical memory,
	* passing it here instead of in the device-tree itself greatly simplifies
	* the job of everybody. It's just a list of u64 pairs (base/size) that
	* ends when size is 0
	*/
	struct boot_param_header {
	__be32 magic; /* magic word OF_DT_HEADER */
	__be32 totalsize; /* total size of DT block */
	__be32 off_dt_struct; /* offset to structure */
	__be32 off_dt_strings; /* offset to strings */
	__be32 off_mem_rsvmap; /* offset to memory reserve map */
	__be32 version; /* format version */
	__be32 last_comp_version; /* last compatible version */
	/* version 2 fields below */
	__be32 boot_cpuid_phys; /* Physical CPU id we're booting on */
	/* version 3 fields below */
	__be32 dt_strings_size; /* size of the DT strings block */
	/* version 17 fields below */
	__be32 dt_struct_size; /* size of the DT structure block */
	};

	/*
	* OF address retreival & translation
	*/

	/* Parse the ibm,dma-window property of an OF node into the busno, phys and
	* size parameters.
	*/
	void of_parse_dma_window(struct device_node dn, const __be32 dma_window,
	unsigned long busno, unsigned long phys,
	unsigned long *size);

	extern void of_instantiate_rtc(void);

	extern int of_get_ibm_chip_id(struct device_node *np);

	/* The of_drconf_cell struct defines the layout of the LMB array
	* specified in the device tree property
	* ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory
	*/
	struct of_drconf_cell {
	u64 base_addr;
	u32 drc_index;
	u32 reserved;
	u32 aa_index;
	u32 flags;
	};

	#define DRCONF_MEM_ASSIGNED 0x00000008
	#define DRCONF_MEM_AI_INVALID 0x00000040
	#define DRCONF_MEM_RESERVED 0x00000080

	/*
	* There are two methods for telling firmware what our capabilities are.
	* Newer machines have an "ibm,client-architecture-support" method on the
	* root node. For older machines, we have to call the "process-elf-header"
	* method in the /packages/elf-loader node, passing it a fake 32-bit
	* ELF header containing a couple of PT_NOTE sections that contain
	* structures that contain various information.
	*/

	/* New method - extensible architecture description vector. */

	/* Option vector bits - generic bits in byte 1 */
	#define OV_IGNORE 0x80 /* ignore this vector */
	#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/

	/* Option vector 1: processor architectures supported */
	#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
	#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
	#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
	#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
	#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
	#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
	#define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
	#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */

	/* Option vector 2: Open Firmware options supported */
	#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */

	/* Option vector 3: processor options supported */
	#define OV3_FP 0x80 /* floating point */
	#define OV3_VMX 0x40 /* VMX/Altivec */
	#define OV3_DFP 0x20 /* decimal FP */

	/* Option vector 4: IBM PAPR implementation */
	#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */

	/* Option vector 5: PAPR/OF options supported
	* These bits are also used in firmware_has_feature() to validate
	* the capabilities reported for vector 5 in the device tree so we
	* encode the vector index in the define and use the OV5_FEAT()
	* and OV5_INDX() macros to extract the desired information.
	*/
	#define OV5_FEAT(x) ((x) & 0xff)
	#define OV5_INDX(x) ((x) >> 8)
	#define OV5_LPAR 0x0280 /* logical partitioning supported */
	#define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
	/* ibm,dynamic-reconfiguration-memory property supported */
	#define OV5_DRCONF_MEMORY 0x0220
	#define OV5_LARGE_PAGES 0x0210 /* large pages supported */
	#define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
	#define OV5_MSI 0x0201 /* PCIe/MSI support */
	#define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
	#define OV5_XCMO 0x0440 /* Page Coalescing */
	#define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
	#define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
	#define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */
	#define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */
	#define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */
	#define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */

	/* Option Vector 6: IBM PAPR hints */
	#define OV6_LINUX 0x02 /* Linux is our OS */

	/*
	* The architecture vector has an array of PVR mask/value pairs,
	* followed by # option vectors - 1, followed by the option vectors.
	*/
	extern unsigned char ibm_architecture_vec[];

	#endif /* __KERNEL__ */
	#endif /* _POWERPC_PROM_H */