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 /* 30 * OF address retreival & translation 31 */ 32 33 /* Parse the ibm,dma-window property of an OF node into the busno, phys and 34 * size parameters. 35 */ 36 void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window, 37 unsigned long *busno, unsigned long *phys, 38 unsigned long *size); 39 40 extern void kdump_move_device_tree(void); 41 42 extern void of_instantiate_rtc(void); 43 44 extern int of_get_ibm_chip_id(struct device_node *np); 45 46 /* The of_drconf_cell struct defines the layout of the LMB array 47 * specified in the device tree property 48 * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory 49 */ 50 struct of_drconf_cell { 51 u64 base_addr; 52 u32 drc_index; 53 u32 reserved; 54 u32 aa_index; 55 u32 flags; 56 }; 57 58 #define DRCONF_MEM_ASSIGNED 0x00000008 59 #define DRCONF_MEM_AI_INVALID 0x00000040 60 #define DRCONF_MEM_RESERVED 0x00000080 61 62 /* 63 * There are two methods for telling firmware what our capabilities are. 64 * Newer machines have an "ibm,client-architecture-support" method on the 65 * root node. For older machines, we have to call the "process-elf-header" 66 * method in the /packages/elf-loader node, passing it a fake 32-bit 67 * ELF header containing a couple of PT_NOTE sections that contain 68 * structures that contain various information. 69 */ 70 71 /* New method - extensible architecture description vector. */ 72 73 /* Option vector bits - generic bits in byte 1 */ 74 #define OV_IGNORE 0x80 /* ignore this vector */ 75 #define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/ 76 77 /* Option vector 1: processor architectures supported */ 78 #define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */ 79 #define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */ 80 #define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */ 81 #define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */ 82 #define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */ 83 #define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */ 84 #define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */ 85 #define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */ 86 87 /* Option vector 2: Open Firmware options supported */ 88 #define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */ 89 90 /* Option vector 3: processor options supported */ 91 #define OV3_FP 0x80 /* floating point */ 92 #define OV3_VMX 0x40 /* VMX/Altivec */ 93 #define OV3_DFP 0x20 /* decimal FP */ 94 95 /* Option vector 4: IBM PAPR implementation */ 96 #define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */ 97 98 /* Option vector 5: PAPR/OF options supported 99 * These bits are also used in firmware_has_feature() to validate 100 * the capabilities reported for vector 5 in the device tree so we 101 * encode the vector index in the define and use the OV5_FEAT() 102 * and OV5_INDX() macros to extract the desired information. 103 */ 104 #define OV5_FEAT(x) ((x) & 0xff) 105 #define OV5_INDX(x) ((x) >> 8) 106 #define OV5_LPAR 0x0280 /* logical partitioning supported */ 107 #define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */ 108 /* ibm,dynamic-reconfiguration-memory property supported */ 109 #define OV5_DRCONF_MEMORY 0x0220 110 #define OV5_LARGE_PAGES 0x0210 /* large pages supported */ 111 #define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */ 112 #define OV5_MSI 0x0201 /* PCIe/MSI support */ 113 #define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */ 114 #define OV5_XCMO 0x0440 /* Page Coalescing */ 115 #define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */ 116 #define OV5_PRRN 0x0540 /* Platform Resource Reassignment */ 117 #define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */ 118 #define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */ 119 #define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */ 120 #define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */ 121 122 /* Option Vector 6: IBM PAPR hints */ 123 #define OV6_LINUX 0x02 /* Linux is our OS */ 124 125 /* 126 * The architecture vector has an array of PVR mask/value pairs, 127 * followed by # option vectors - 1, followed by the option vectors. 128 */ 129 extern unsigned char ibm_architecture_vec[]; 130 131 #endif /* __KERNEL__ */ 132 #endif /* _POWERPC_PROM_H */ 133