arch/powerpc/include/asm/prom.h - kernel/msm-4.19 - Gitiles

 #include <linux/of.h>	/* linux/of.h gets to determine #include ordering */
 #ifndef _POWERPC_PROM_H
 #define _POWERPC_PROM_H
 #ifdef __KERNEL__

 /*
  * Definitions for talking to the Open Firmware PROM on
  * Power Macintosh computers.
  *
  * Copyright (C) 1996-2005 Paul Mackerras.
  *
  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  *
  * 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.
  */
 #include <linux/types.h>
 #include <asm/irq.h>
 #include <linux/atomic.h>

 #define HAVE_ARCH_DEVTREE_FIXUPS

 /*
  * OF address retreival & translation
  */

 /* Translate a DMA address from device space to CPU space */
 extern u64 of_translate_dma_address(struct device_node *dev,
 				    const __be32 *in_addr);

 #ifdef CONFIG_PCI
 extern unsigned long pci_address_to_pio(phys_addr_t address);
 #define pci_address_to_pio pci_address_to_pio
 #endif	/* CONFIG_PCI */

 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
 void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size);

 extern void kdump_move_device_tree(void);

 /* CPU OF node matching */
 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);

 /* cache lookup */
 struct device_node *of_find_next_cache_node(struct device_node *np);

 #ifdef CONFIG_NUMA
 extern int of_node_to_nid(struct device_node *device);
 #else
 static inline int of_node_to_nid(struct device_node *device) { return 0; }
 #endif
 #define of_node_to_nid of_node_to_nid

 extern void of_instantiate_rtc(void);

 /* The of_drconf_cell struct defines the layout of the LMB array
  * specified in the device tree property
  * ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory
  */
 struct of_drconf_cell {
 	u64	base_addr;
 	u32	drc_index;
 	u32	reserved;
 	u32	aa_index;
 	u32	flags;
 };

 #define DRCONF_MEM_ASSIGNED	0x00000008
 #define DRCONF_MEM_AI_INVALID	0x00000040
 #define DRCONF_MEM_RESERVED	0x00000080

 /*
  * There are two methods for telling firmware what our capabilities are.
  * Newer machines have an "ibm,client-architecture-support" method on the
  * root node.  For older machines, we have to call the "process-elf-header"
  * method in the /packages/elf-loader node, passing it a fake 32-bit
  * ELF header containing a couple of PT_NOTE sections that contain
  * structures that contain various information.
  */

 /* New method - extensible architecture description vector. */

 /* Option vector bits - generic bits in byte 1 */
 #define OV_IGNORE		0x80	/* ignore this vector */
 #define OV_CESSATION_POLICY	0x40	/* halt if unsupported option present*/

 /* Option vector 1: processor architectures supported */
 #define OV1_PPC_2_00		0x80	/* set if we support PowerPC 2.00 */
 #define OV1_PPC_2_01		0x40	/* set if we support PowerPC 2.01 */
 #define OV1_PPC_2_02		0x20	/* set if we support PowerPC 2.02 */
 #define OV1_PPC_2_03		0x10	/* set if we support PowerPC 2.03 */
 #define OV1_PPC_2_04		0x08	/* set if we support PowerPC 2.04 */
 #define OV1_PPC_2_05		0x04	/* set if we support PowerPC 2.05 */
 #define OV1_PPC_2_06		0x02	/* set if we support PowerPC 2.06 */
 #define OV1_PPC_2_07		0x01	/* set if we support PowerPC 2.07 */

 /* Option vector 2: Open Firmware options supported */
 #define OV2_REAL_MODE		0x20	/* set if we want OF in real mode */

 /* Option vector 3: processor options supported */
 #define OV3_FP			0x80	/* floating point */
 #define OV3_VMX			0x40	/* VMX/Altivec */
 #define OV3_DFP			0x20	/* decimal FP */

 /* Option vector 4: IBM PAPR implementation */
 #define OV4_MIN_ENT_CAP		0x01	/* minimum VP entitled capacity */

 /* Option vector 5: PAPR/OF options supported
  * These bits are also used in firmware_has_feature() to validate
  * the capabilities reported for vector 5 in the device tree so we
  * encode the vector index in the define and use the OV5_FEAT()
  * and OV5_INDX() macros to extract the desired information.
  */
 #define OV5_FEAT(x)	((x) & 0xff)
 #define OV5_INDX(x)	((x) >> 8)
 #define OV5_LPAR		0x0280	/* logical partitioning supported */
 #define OV5_SPLPAR		0x0240	/* shared-processor LPAR supported */
 /* ibm,dynamic-reconfiguration-memory property supported */
 #define OV5_DRCONF_MEMORY	0x0220
 #define OV5_LARGE_PAGES		0x0210	/* large pages supported */
 #define OV5_DONATE_DEDICATE_CPU	0x0202	/* donate dedicated CPU support */
 #define OV5_MSI			0x0201	/* PCIe/MSI support */
 #define OV5_CMO			0x0480	/* Cooperative Memory Overcommitment */
 #define OV5_XCMO		0x0440	/* Page Coalescing */
 #define OV5_TYPE1_AFFINITY	0x0580	/* Type 1 NUMA affinity */
 #define OV5_PRRN		0x0540	/* Platform Resource Reassignment */
 #define OV5_PFO_HW_RNG		0x0E80	/* PFO Random Number Generator */
 #define OV5_PFO_HW_842		0x0E40	/* PFO Compression Accelerator */
 #define OV5_PFO_HW_ENCR		0x0E20	/* PFO Encryption Accelerator */
 #define OV5_SUB_PROCESSORS	0x0F01	/* 1,2,or 4 Sub-Processors supported */

 /* Option Vector 6: IBM PAPR hints */
 #define OV6_LINUX		0x02	/* Linux is our OS */

 /*
  * The architecture vector has an array of PVR mask/value pairs,
  * followed by # option vectors - 1, followed by the option vectors.
  */
 extern unsigned char ibm_architecture_vec[];

 /* These includes are put at the bottom because they may contain things
  * that are overridden by this file.  Ideally they shouldn't be included
  * by this file, but there are a bunch of .c files that currently depend
  * on it.  Eventually they will be cleaned up. */
 #include <linux/of_fdt.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>

 #endif /* __KERNEL__ */
 #endif /* _POWERPC_PROM_H */
	#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
	#ifndef _POWERPC_PROM_H
	#define _POWERPC_PROM_H
	#ifdef __KERNEL__

	/*
	* Definitions for talking to the Open Firmware PROM on
	* Power Macintosh computers.
	*
	* Copyright (C) 1996-2005 Paul Mackerras.
	*
	* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
	*
	* 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.
	*/
	#include <linux/types.h>
	#include <asm/irq.h>
	#include <linux/atomic.h>

	#define HAVE_ARCH_DEVTREE_FIXUPS

	/*
	* OF address retreival & translation
	*/

	/* Translate a DMA address from device space to CPU space */
	extern u64 of_translate_dma_address(struct device_node *dev,
	const __be32 *in_addr);

	#ifdef CONFIG_PCI
	extern unsigned long pci_address_to_pio(phys_addr_t address);
	#define pci_address_to_pio pci_address_to_pio
	#endif /* CONFIG_PCI */

	/* Parse the ibm,dma-window property of an OF node into the busno, phys and
	* size parameters.
	*/
	void of_parse_dma_window(struct device_node dn, const void dma_window_prop,
	unsigned long busno, unsigned long phys, unsigned long *size);

	extern void kdump_move_device_tree(void);

	/* CPU OF node matching */
	struct device_node of_get_cpu_node(int cpu, unsigned int thread);

	/* cache lookup */
	struct device_node of_find_next_cache_node(struct device_node np);

	#ifdef CONFIG_NUMA
	extern int of_node_to_nid(struct device_node *device);
	#else
	static inline int of_node_to_nid(struct device_node *device) { return 0; }
	#endif
	#define of_node_to_nid of_node_to_nid

	extern void of_instantiate_rtc(void);

	/* The of_drconf_cell struct defines the layout of the LMB array
	* specified in the device tree property
	* ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory
	*/
	struct of_drconf_cell {
	u64 base_addr;
	u32 drc_index;
	u32 reserved;
	u32 aa_index;
	u32 flags;
	};

	#define DRCONF_MEM_ASSIGNED 0x00000008
	#define DRCONF_MEM_AI_INVALID 0x00000040
	#define DRCONF_MEM_RESERVED 0x00000080

	/*
	* There are two methods for telling firmware what our capabilities are.
	* Newer machines have an "ibm,client-architecture-support" method on the
	* root node. For older machines, we have to call the "process-elf-header"
	* method in the /packages/elf-loader node, passing it a fake 32-bit
	* ELF header containing a couple of PT_NOTE sections that contain
	* structures that contain various information.
	*/

	/* New method - extensible architecture description vector. */

	/* Option vector bits - generic bits in byte 1 */
	#define OV_IGNORE 0x80 /* ignore this vector */
	#define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/

	/* Option vector 1: processor architectures supported */
	#define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
	#define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
	#define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
	#define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
	#define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
	#define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
	#define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
	#define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */

	/* Option vector 2: Open Firmware options supported */
	#define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */

	/* Option vector 3: processor options supported */
	#define OV3_FP 0x80 /* floating point */
	#define OV3_VMX 0x40 /* VMX/Altivec */
	#define OV3_DFP 0x20 /* decimal FP */

	/* Option vector 4: IBM PAPR implementation */
	#define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */

	/* Option vector 5: PAPR/OF options supported
	* These bits are also used in firmware_has_feature() to validate
	* the capabilities reported for vector 5 in the device tree so we
	* encode the vector index in the define and use the OV5_FEAT()
	* and OV5_INDX() macros to extract the desired information.
	*/
	#define OV5_FEAT(x) ((x) & 0xff)
	#define OV5_INDX(x) ((x) >> 8)
	#define OV5_LPAR 0x0280 /* logical partitioning supported */
	#define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
	/* ibm,dynamic-reconfiguration-memory property supported */
	#define OV5_DRCONF_MEMORY 0x0220
	#define OV5_LARGE_PAGES 0x0210 /* large pages supported */
	#define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
	#define OV5_MSI 0x0201 /* PCIe/MSI support */
	#define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
	#define OV5_XCMO 0x0440 /* Page Coalescing */
	#define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
	#define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
	#define OV5_PFO_HW_RNG 0x0E80 /* PFO Random Number Generator */
	#define OV5_PFO_HW_842 0x0E40 /* PFO Compression Accelerator */
	#define OV5_PFO_HW_ENCR 0x0E20 /* PFO Encryption Accelerator */
	#define OV5_SUB_PROCESSORS 0x0F01 /* 1,2,or 4 Sub-Processors supported */

	/* Option Vector 6: IBM PAPR hints */
	#define OV6_LINUX 0x02 /* Linux is our OS */

	/*
	* The architecture vector has an array of PVR mask/value pairs,
	* followed by # option vectors - 1, followed by the option vectors.
	*/
	extern unsigned char ibm_architecture_vec[];

	/* These includes are put at the bottom because they may contain things
	* that are overridden by this file. Ideally they shouldn't be included
	* by this file, but there are a bunch of .c files that currently depend
	* on it. Eventually they will be cleaned up. */
	#include <linux/of_fdt.h>
	#include <linux/of_address.h>
	#include <linux/of_irq.h>
	#include <linux/platform_device.h>

	#endif /* __KERNEL__ */
	#endif /* _POWERPC_PROM_H */