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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
181 lines
7.0 KiB
C
181 lines
7.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _POWERPC_PROM_H
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#define _POWERPC_PROM_H
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#ifdef __KERNEL__
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/*
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* Definitions for talking to the Open Firmware PROM on
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* Power Macintosh computers.
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*
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* Copyright (C) 1996-2005 Paul Mackerras.
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*
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* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
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*/
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#include <linux/types.h>
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#include <asm/irq.h>
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#include <linux/atomic.h>
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/* These includes should be removed once implicit includes are cleaned up. */
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#include <linux/of.h>
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#include <linux/of_fdt.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/platform_device.h>
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#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
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#define OF_DT_END_NODE 0x2 /* End node */
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#define OF_DT_PROP 0x3 /* Property: name off, size,
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* content */
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#define OF_DT_NOP 0x4 /* nop */
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#define OF_DT_END 0x9
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#define OF_DT_VERSION 0x10
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/*
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* This is what gets passed to the kernel by prom_init or kexec
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*
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* The dt struct contains the device tree structure, full pathes and
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* property contents. The dt strings contain a separate block with just
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* the strings for the property names, and is fully page aligned and
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* self contained in a page, so that it can be kept around by the kernel,
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* each property name appears only once in this page (cheap compression)
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*
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* the mem_rsvmap contains a map of reserved ranges of physical memory,
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* passing it here instead of in the device-tree itself greatly simplifies
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* the job of everybody. It's just a list of u64 pairs (base/size) that
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* ends when size is 0
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*/
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struct boot_param_header {
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__be32 magic; /* magic word OF_DT_HEADER */
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__be32 totalsize; /* total size of DT block */
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__be32 off_dt_struct; /* offset to structure */
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__be32 off_dt_strings; /* offset to strings */
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__be32 off_mem_rsvmap; /* offset to memory reserve map */
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__be32 version; /* format version */
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__be32 last_comp_version; /* last compatible version */
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/* version 2 fields below */
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__be32 boot_cpuid_phys; /* Physical CPU id we're booting on */
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/* version 3 fields below */
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__be32 dt_strings_size; /* size of the DT strings block */
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/* version 17 fields below */
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__be32 dt_struct_size; /* size of the DT structure block */
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};
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/*
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* OF address retreival & translation
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*/
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/* Parse the ibm,dma-window property of an OF node into the busno, phys and
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* size parameters.
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*/
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void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
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unsigned long *busno, unsigned long *phys,
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unsigned long *size);
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extern void of_instantiate_rtc(void);
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extern int of_get_ibm_chip_id(struct device_node *np);
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struct of_drc_info {
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char *drc_type;
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char *drc_name_prefix;
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u32 drc_index_start;
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u32 drc_name_suffix_start;
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u32 num_sequential_elems;
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u32 sequential_inc;
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u32 drc_power_domain;
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u32 last_drc_index;
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};
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extern int of_read_drc_info_cell(struct property **prop,
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const __be32 **curval, struct of_drc_info *data);
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/*
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* There are two methods for telling firmware what our capabilities are.
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* Newer machines have an "ibm,client-architecture-support" method on the
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* root node. For older machines, we have to call the "process-elf-header"
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* method in the /packages/elf-loader node, passing it a fake 32-bit
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* ELF header containing a couple of PT_NOTE sections that contain
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* structures that contain various information.
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*/
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/* New method - extensible architecture description vector. */
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/* Option vector bits - generic bits in byte 1 */
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#define OV_IGNORE 0x80 /* ignore this vector */
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#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/
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/* Option vector 1: processor architectures supported */
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#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
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#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
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#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
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#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
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#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
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#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
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#define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
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#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */
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#define OV1_PPC_3_00 0x80 /* set if we support PowerPC 3.00 */
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/* Option vector 2: Open Firmware options supported */
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#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */
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/* Option vector 3: processor options supported */
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#define OV3_FP 0x80 /* floating point */
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#define OV3_VMX 0x40 /* VMX/Altivec */
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#define OV3_DFP 0x20 /* decimal FP */
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/* Option vector 4: IBM PAPR implementation */
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#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */
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/* Option vector 5: PAPR/OF options supported
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* These bits are also used in firmware_has_feature() to validate
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* the capabilities reported for vector 5 in the device tree so we
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* encode the vector index in the define and use the OV5_FEAT()
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* and OV5_INDX() macros to extract the desired information.
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*/
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#define OV5_FEAT(x) ((x) & 0xff)
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#define OV5_INDX(x) ((x) >> 8)
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#define OV5_LPAR 0x0280 /* logical partitioning supported */
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#define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
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/* ibm,dynamic-reconfiguration-memory property supported */
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#define OV5_DRCONF_MEMORY 0x0220
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#define OV5_LARGE_PAGES 0x0210 /* large pages supported */
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#define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
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#define OV5_MSI 0x0201 /* PCIe/MSI support */
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#define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
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#define OV5_XCMO 0x0440 /* Page Coalescing */
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#define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
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#define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
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#define OV5_HP_EVT 0x0604 /* Hot Plug Event support */
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#define OV5_RESIZE_HPT 0x0601 /* Hash Page Table resizing */
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#define OV5_PFO_HW_RNG 0x1180 /* PFO Random Number Generator */
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#define OV5_PFO_HW_842 0x1140 /* PFO Compression Accelerator */
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#define OV5_PFO_HW_ENCR 0x1120 /* PFO Encryption Accelerator */
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#define OV5_SUB_PROCESSORS 0x1501 /* 1,2,or 4 Sub-Processors supported */
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#define OV5_DRMEM_V2 0x1680 /* ibm,dynamic-reconfiguration-v2 */
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#define OV5_XIVE_SUPPORT 0x17C0 /* XIVE Exploitation Support Mask */
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#define OV5_XIVE_LEGACY 0x1700 /* XIVE legacy mode Only */
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#define OV5_XIVE_EXPLOIT 0x1740 /* XIVE exploitation mode Only */
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#define OV5_XIVE_EITHER 0x1780 /* XIVE legacy or exploitation mode */
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/* MMU Base Architecture */
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#define OV5_MMU_SUPPORT 0x18C0 /* MMU Mode Support Mask */
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#define OV5_MMU_HASH 0x1800 /* Hash MMU Only */
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#define OV5_MMU_RADIX 0x1840 /* Radix MMU Only */
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#define OV5_MMU_EITHER 0x1880 /* Hash or Radix Supported */
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#define OV5_MMU_DYNAMIC 0x18C0 /* Hash or Radix Can Switch Later */
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#define OV5_NMMU 0x1820 /* Nest MMU Available */
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/* Hash Table Extensions */
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#define OV5_HASH_SEG_TBL 0x1980 /* In Memory Segment Tables Available */
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#define OV5_HASH_GTSE 0x1940 /* Guest Translation Shoot Down Avail */
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/* Radix Table Extensions */
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#define OV5_RADIX_GTSE 0x1A40 /* Guest Translation Shoot Down Avail */
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#define OV5_DRC_INFO 0x1640 /* Redef Prop Structures: drc-info */
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/* Option Vector 6: IBM PAPR hints */
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#define OV6_LINUX 0x02 /* Linux is our OS */
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#endif /* __KERNEL__ */
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#endif /* _POWERPC_PROM_H */
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