Release 4.14 arch/powerpc/include/asm/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 */
#define OV1_PPC_3_00 0x80
/* set if we support PowerPC 3.00 */
/* 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_HP_EVT 0x0604
/* Hot Plug Event support */
#define OV5_RESIZE_HPT 0x0601
/* Hash Page Table resizing */
#define OV5_PFO_HW_RNG 0x1180
/* PFO Random Number Generator */
#define OV5_PFO_HW_842 0x1140
/* PFO Compression Accelerator */
#define OV5_PFO_HW_ENCR 0x1120
/* PFO Encryption Accelerator */
#define OV5_SUB_PROCESSORS 0x1501
/* 1,2,or 4 Sub-Processors supported */
#define OV5_XIVE_SUPPORT 0x17C0
/* XIVE Exploitation Support Mask */
#define OV5_XIVE_LEGACY 0x1700
/* XIVE legacy mode Only */
#define OV5_XIVE_EXPLOIT 0x1740
/* XIVE exploitation mode Only */
#define OV5_XIVE_EITHER 0x1780
/* XIVE legacy or exploitation mode */
/* MMU Base Architecture */
#define OV5_MMU_SUPPORT 0x18C0
/* MMU Mode Support Mask */
#define OV5_MMU_HASH 0x1800
/* Hash MMU Only */
#define OV5_MMU_RADIX 0x1840
/* Radix MMU Only */
#define OV5_MMU_EITHER 0x1880
/* Hash or Radix Supported */
#define OV5_MMU_DYNAMIC 0x18C0
/* Hash or Radix Can Switch Later */
#define OV5_NMMU 0x1820
/* Nest MMU Available */
/* Hash Table Extensions */
#define OV5_HASH_SEG_TBL 0x1980
/* In Memory Segment Tables Available */
#define OV5_HASH_GTSE 0x1940
/* Guest Translation Shoot Down Avail */
/* Radix Table Extensions */
#define OV5_RADIX_GTSE 0x1A40
/* Guest Translation Shoot Down Avail */
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02
/* Linux is our OS */
#endif /* __KERNEL__ */
#endif /* _POWERPC_PROM_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Nathan Fontenot | 197 | 43.30% | 3 | 13.04% |
| Rob Herring | 93 | 20.44% | 2 | 8.70% |
| Paul Mackerras | 46 | 10.11% | 3 | 13.04% |
| Suraj Jitindar Singh | 34 | 7.47% | 1 | 4.35% |
| Jeremy Kerr | 28 | 6.15% | 2 | 8.70% |
| Cédric Le Goater | 17 | 3.74% | 1 | 4.35% |
| Benjamin Herrenschmidt | 11 | 2.42% | 2 | 8.70% |
| David Gibson | 5 | 1.10% | 1 | 4.35% |
| Michael Roth | 5 | 1.10% | 1 | 4.35% |
| Jesse Larrew | 5 | 1.10% | 1 | 4.35% |
| Grant C. Likely | 5 | 1.10% | 1 | 4.35% |
| Andrew Morton | 3 | 0.66% | 1 | 4.35% |
| Anton Blanchard | 2 | 0.44% | 1 | 4.35% |
| Michael Ellerman | 2 | 0.44% | 1 | 4.35% |
| Stephen Rothwell | 1 | 0.22% | 1 | 4.35% |
| Arun Sharma | 1 | 0.22% | 1 | 4.35% |
| Total | 455 | 100.00% | 23 | 100.00% |
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