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1#ifndef _POWERPC_PROM_H
2#define _POWERPC_PROM_H
3#ifdef __KERNEL__
4
5/*
6 * Definitions for talking to the Open Firmware PROM on
7 * Power Macintosh computers.
8 *
9 * Copyright (C) 1996-2005 Paul Mackerras.
10 *
11 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18#include <linux/types.h>
19#include <asm/irq.h>
20#include <linux/atomic.h>
21
22/* These includes should be removed once implicit includes are cleaned up. */
23#include <linux/of.h>
24#include <linux/of_fdt.h>
25#include <linux/of_address.h>
26#include <linux/of_irq.h>
27#include <linux/platform_device.h>
28
29#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
30#define OF_DT_END_NODE 0x2 /* End node */
31#define OF_DT_PROP 0x3 /* Property: name off, size,
32 * content */
33#define OF_DT_NOP 0x4 /* nop */
34#define OF_DT_END 0x9
35
36#define OF_DT_VERSION 0x10
37
38/*
39 * This is what gets passed to the kernel by prom_init or kexec
40 *
41 * The dt struct contains the device tree structure, full pathes and
42 * property contents. The dt strings contain a separate block with just
43 * the strings for the property names, and is fully page aligned and
44 * self contained in a page, so that it can be kept around by the kernel,
45 * each property name appears only once in this page (cheap compression)
46 *
47 * the mem_rsvmap contains a map of reserved ranges of physical memory,
48 * passing it here instead of in the device-tree itself greatly simplifies
49 * the job of everybody. It's just a list of u64 pairs (base/size) that
50 * ends when size is 0
51 */
52struct boot_param_header {
53 __be32 magic; /* magic word OF_DT_HEADER */
54 __be32 totalsize; /* total size of DT block */
55 __be32 off_dt_struct; /* offset to structure */
56 __be32 off_dt_strings; /* offset to strings */
57 __be32 off_mem_rsvmap; /* offset to memory reserve map */
58 __be32 version; /* format version */
59 __be32 last_comp_version; /* last compatible version */
60 /* version 2 fields below */
61 __be32 boot_cpuid_phys; /* Physical CPU id we're booting on */
62 /* version 3 fields below */
63 __be32 dt_strings_size; /* size of the DT strings block */
64 /* version 17 fields below */
65 __be32 dt_struct_size; /* size of the DT structure block */
66};
67
68/*
69 * OF address retreival & translation
70 */
71
72/* Parse the ibm,dma-window property of an OF node into the busno, phys and
73 * size parameters.
74 */
75void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
76 unsigned long *busno, unsigned long *phys,
77 unsigned long *size);
78
79extern void of_instantiate_rtc(void);
80
81extern int of_get_ibm_chip_id(struct device_node *np);
82
83/* The of_drconf_cell struct defines the layout of the LMB array
84 * specified in the device tree property
85 * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory
86 */
87struct of_drconf_cell {
88 u64 base_addr;
89 u32 drc_index;
90 u32 reserved;
91 u32 aa_index;
92 u32 flags;
93};
94
95#define DRCONF_MEM_ASSIGNED 0x00000008
96#define DRCONF_MEM_AI_INVALID 0x00000040
97#define DRCONF_MEM_RESERVED 0x00000080
98
99/*
100 * There are two methods for telling firmware what our capabilities are.
101 * Newer machines have an "ibm,client-architecture-support" method on the
102 * root node. For older machines, we have to call the "process-elf-header"
103 * method in the /packages/elf-loader node, passing it a fake 32-bit
104 * ELF header containing a couple of PT_NOTE sections that contain
105 * structures that contain various information.
106 */
107
108/* New method - extensible architecture description vector. */
109
110/* Option vector bits - generic bits in byte 1 */
111#define OV_IGNORE 0x80 /* ignore this vector */
112#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/
113
114/* Option vector 1: processor architectures supported */
115#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
116#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
117#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
118#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
119#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
120#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
121#define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
122#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */
123
124/* Option vector 2: Open Firmware options supported */
125#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */
126
127/* Option vector 3: processor options supported */
128#define OV3_FP 0x80 /* floating point */
129#define OV3_VMX 0x40 /* VMX/Altivec */
130#define OV3_DFP 0x20 /* decimal FP */
131
132/* Option vector 4: IBM PAPR implementation */
133#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */
134
135/* Option vector 5: PAPR/OF options supported
136 * These bits are also used in firmware_has_feature() to validate
137 * the capabilities reported for vector 5 in the device tree so we
138 * encode the vector index in the define and use the OV5_FEAT()
139 * and OV5_INDX() macros to extract the desired information.
140 */
141#define OV5_FEAT(x) ((x) & 0xff)
142#define OV5_INDX(x) ((x) >> 8)
143#define OV5_LPAR 0x0280 /* logical partitioning supported */
144#define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
145/* ibm,dynamic-reconfiguration-memory property supported */
146#define OV5_DRCONF_MEMORY 0x0220
147#define OV5_LARGE_PAGES 0x0210 /* large pages supported */
148#define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
149#define OV5_MSI 0x0201 /* PCIe/MSI support */
150#define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
151#define OV5_XCMO 0x0440 /* Page Coalescing */
152#define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
153#define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
154#define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */
155#define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */
156#define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */
157#define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */
158
159/* Option Vector 6: IBM PAPR hints */
160#define OV6_LINUX 0x02 /* Linux is our OS */
161
162/*
163 * The architecture vector has an array of PVR mask/value pairs,
164 * followed by # option vectors - 1, followed by the option vectors.
165 */
166extern unsigned char ibm_architecture_vec[];
167
168#endif /* __KERNEL__ */
169#endif /* _POWERPC_PROM_H */
1#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
2#ifndef _POWERPC_PROM_H
3#define _POWERPC_PROM_H
4#ifdef __KERNEL__
5
6/*
7 * Definitions for talking to the Open Firmware PROM on
8 * Power Macintosh computers.
9 *
10 * Copyright (C) 1996-2005 Paul Mackerras.
11 *
12 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version
17 * 2 of the License, or (at your option) any later version.
18 */
19#include <linux/types.h>
20#include <asm/irq.h>
21#include <linux/atomic.h>
22
23#define HAVE_ARCH_DEVTREE_FIXUPS
24
25/*
26 * OF address retreival & translation
27 */
28
29/* Translate a DMA address from device space to CPU space */
30extern u64 of_translate_dma_address(struct device_node *dev,
31 const __be32 *in_addr);
32
33#ifdef CONFIG_PCI
34extern unsigned long pci_address_to_pio(phys_addr_t address);
35#define pci_address_to_pio pci_address_to_pio
36#endif /* CONFIG_PCI */
37
38/* Parse the ibm,dma-window property of an OF node into the busno, phys and
39 * size parameters.
40 */
41void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
42 unsigned long *busno, unsigned long *phys, unsigned long *size);
43
44extern void kdump_move_device_tree(void);
45
46/* CPU OF node matching */
47struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
48
49/* cache lookup */
50struct device_node *of_find_next_cache_node(struct device_node *np);
51
52#ifdef CONFIG_NUMA
53extern int of_node_to_nid(struct device_node *device);
54#else
55static inline int of_node_to_nid(struct device_node *device) { return 0; }
56#endif
57#define of_node_to_nid of_node_to_nid
58
59extern void of_instantiate_rtc(void);
60
61/* These includes are put at the bottom because they may contain things
62 * that are overridden by this file. Ideally they shouldn't be included
63 * by this file, but there are a bunch of .c files that currently depend
64 * on it. Eventually they will be cleaned up. */
65#include <linux/of_fdt.h>
66#include <linux/of_address.h>
67#include <linux/of_irq.h>
68#include <linux/platform_device.h>
69
70#endif /* __KERNEL__ */
71#endif /* _POWERPC_PROM_H */