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 */ 30 extern u64 of_translate_dma_address(struct device_node *dev, 31 const __be32 *in_addr); 32 33 #ifdef CONFIG_PCI 34 extern 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 */ 41 void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window, 42 unsigned long *busno, unsigned long *phys, 43 unsigned long *size); 44 45 extern void kdump_move_device_tree(void); 46 47 /* cache lookup */ 48 struct device_node *of_find_next_cache_node(struct device_node *np); 49 50 #ifdef CONFIG_NUMA 51 extern int of_node_to_nid(struct device_node *device); 52 #else 53 static inline int of_node_to_nid(struct device_node *device) { return 0; } 54 #endif 55 #define of_node_to_nid of_node_to_nid 56 57 extern void of_instantiate_rtc(void); 58 59 extern int of_get_ibm_chip_id(struct device_node *np); 60 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 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 */ 112 113 /* 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 */ 123 /* ibm,dynamic-reconfiguration-memory property supported */ 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_PRRN 0x0540 /* Platform Resource Reassignment */ 132 #define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */ 133 #define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */ 134 #define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */ 135 #define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */ 136 137 /* Option Vector 6: IBM PAPR hints */ 138 #define OV6_LINUX 0x02 /* Linux is our OS */ 139 140 /* 141 * The architecture vector has an array of PVR mask/value pairs, 142 * followed by # option vectors - 1, followed by the option vectors. 143 */ 144 extern unsigned char ibm_architecture_vec[]; 145 146 /* These includes are put at the bottom because they may contain things 147 * that are overridden by this file. Ideally they shouldn't be included 148 * by this file, but there are a bunch of .c files that currently depend 149 * on it. Eventually they will be cleaned up. */ 150 #include <linux/of_fdt.h> 151 #include <linux/of_address.h> 152 #include <linux/of_irq.h> 153 #include <linux/platform_device.h> 154 155 #endif /* __KERNEL__ */ 156 #endif /* _POWERPC_PROM_H */ 157