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9d24c888 | 1 | #include <linux/of.h> /* linux/of.h gets to determine #include ordering */ |
9b6b563c PM |
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> | |
99ddef9b | 20 | #include <asm/irq.h> |
60063497 | 21 | #include <linux/atomic.h> |
9b6b563c | 22 | |
9b6b563c PM |
23 | #define HAVE_ARCH_DEVTREE_FIXUPS |
24 | ||
d1405b86 | 25 | /* |
d2dd482b BH |
26 | * OF address retreival & translation |
27 | */ | |
28 | ||
837c54db BH |
29 | /* Translate a DMA address from device space to CPU space */ |
30 | extern u64 of_translate_dma_address(struct device_node *dev, | |
0131d897 | 31 | const __be32 *in_addr); |
837c54db | 32 | |
1f5bef30 GL |
33 | #ifdef CONFIG_PCI |
34 | extern unsigned long pci_address_to_pio(phys_addr_t address); | |
22ae782f | 35 | #define pci_address_to_pio pci_address_to_pio |
1f5bef30 GL |
36 | #endif /* CONFIG_PCI */ |
37 | ||
d4ad66fa JK |
38 | /* Parse the ibm,dma-window property of an OF node into the busno, phys and |
39 | * size parameters. | |
40 | */ | |
a7f67bdf | 41 | void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, |
d4ad66fa JK |
42 | unsigned long *busno, unsigned long *phys, unsigned long *size); |
43 | ||
b68239ee ME |
44 | extern void kdump_move_device_tree(void); |
45 | ||
acf7d768 BH |
46 | /* CPU OF node matching */ |
47 | struct device_node *of_get_cpu_node(int cpu, unsigned int *thread); | |
48 | ||
e523f723 NL |
49 | /* cache lookup */ |
50 | struct device_node *of_find_next_cache_node(struct device_node *np); | |
51 | ||
559e2b7e GL |
52 | #ifdef CONFIG_NUMA |
53 | extern int of_node_to_nid(struct device_node *device); | |
54 | #else | |
55 | static 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 | ||
129ac799 GL |
59 | extern void of_instantiate_rtc(void); |
60 | ||
f5949720 NF |
61 | /* The of_drconf_cell struct defines the layout of the LMB array |
62 | * specified in the device tree property | |
63 | * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory | |
64 | */ | |
65 | struct of_drconf_cell { | |
66 | u64 base_addr; | |
67 | u32 drc_index; | |
68 | u32 reserved; | |
69 | u32 aa_index; | |
70 | u32 flags; | |
71 | }; | |
72 | ||
73 | #define DRCONF_MEM_ASSIGNED 0x00000008 | |
74 | #define DRCONF_MEM_AI_INVALID 0x00000040 | |
75 | #define DRCONF_MEM_RESERVED 0x00000080 | |
76 | ||
530b5e14 NF |
77 | /* |
78 | * There are two methods for telling firmware what our capabilities are. | |
79 | * Newer machines have an "ibm,client-architecture-support" method on the | |
80 | * root node. For older machines, we have to call the "process-elf-header" | |
81 | * method in the /packages/elf-loader node, passing it a fake 32-bit | |
82 | * ELF header containing a couple of PT_NOTE sections that contain | |
83 | * structures that contain various information. | |
84 | */ | |
85 | ||
86 | /* New method - extensible architecture description vector. */ | |
87 | ||
88 | /* Option vector bits - generic bits in byte 1 */ | |
89 | #define OV_IGNORE 0x80 /* ignore this vector */ | |
90 | #define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/ | |
91 | ||
92 | /* Option vector 1: processor architectures supported */ | |
93 | #define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */ | |
94 | #define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */ | |
95 | #define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */ | |
96 | #define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */ | |
97 | #define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */ | |
98 | #define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */ | |
99 | #define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */ | |
100 | #define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */ | |
101 | ||
102 | /* Option vector 2: Open Firmware options supported */ | |
103 | #define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */ | |
104 | ||
105 | /* Option vector 3: processor options supported */ | |
106 | #define OV3_FP 0x80 /* floating point */ | |
107 | #define OV3_VMX 0x40 /* VMX/Altivec */ | |
108 | #define OV3_DFP 0x20 /* decimal FP */ | |
109 | ||
110 | /* Option vector 4: IBM PAPR implementation */ | |
111 | #define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */ | |
112 | ||
f0ff7eb4 NF |
113 | /* Option vector 5: PAPR/OF options supported |
114 | * These bits are also used in firmware_has_feature() to validate | |
115 | * the capabilities reported for vector 5 in the device tree so we | |
116 | * encode the vector index in the define and use the OV5_FEAT() | |
117 | * and OV5_INDX() macros to extract the desired information. | |
118 | */ | |
119 | #define OV5_FEAT(x) ((x) & 0xff) | |
120 | #define OV5_INDX(x) ((x) >> 8) | |
121 | #define OV5_LPAR 0x0280 /* logical partitioning supported */ | |
122 | #define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */ | |
530b5e14 | 123 | /* ibm,dynamic-reconfiguration-memory property supported */ |
f0ff7eb4 NF |
124 | #define OV5_DRCONF_MEMORY 0x0220 |
125 | #define OV5_LARGE_PAGES 0x0210 /* large pages supported */ | |
126 | #define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */ | |
127 | #define OV5_MSI 0x0201 /* PCIe/MSI support */ | |
128 | #define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */ | |
129 | #define OV5_XCMO 0x0440 /* Page Coalescing */ | |
130 | #define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */ | |
131 | #define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */ | |
132 | #define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */ | |
133 | #define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */ | |
134 | #define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */ | |
530b5e14 NF |
135 | |
136 | /* Option Vector 6: IBM PAPR hints */ | |
137 | #define OV6_LINUX 0x02 /* Linux is our OS */ | |
138 | ||
139 | /* | |
140 | * The architecture vector has an array of PVR mask/value pairs, | |
141 | * followed by # option vectors - 1, followed by the option vectors. | |
142 | */ | |
143 | extern unsigned char ibm_architecture_vec[]; | |
144 | ||
22ae782f GL |
145 | /* These includes are put at the bottom because they may contain things |
146 | * that are overridden by this file. Ideally they shouldn't be included | |
147 | * by this file, but there are a bunch of .c files that currently depend | |
148 | * on it. Eventually they will be cleaned up. */ | |
149 | #include <linux/of_fdt.h> | |
150 | #include <linux/of_address.h> | |
151 | #include <linux/of_irq.h> | |
152 | #include <linux/platform_device.h> | |
153 | ||
9b6b563c PM |
154 | #endif /* __KERNEL__ */ |
155 | #endif /* _POWERPC_PROM_H */ |