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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0131d8973c
This patch changes u32 to __be32 for all "ranges", "prop" and "addr" and such. Those variables are pointing to the device tree which contains integers in big endian format. Most functions are doing it right because of_read_number() is doing the right thing for them. of_bus_isa_get_flags(), of_bus_pci_get_flags() and of_bus_isa_map() were accessing the data directly and were doing it wrong. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
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#ifndef _POWERPC_PROM_H
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#define _POWERPC_PROM_H
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#ifdef __KERNEL__
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/*
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* Definitions for talking to the Open Firmware PROM on
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* Power Macintosh computers.
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*
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* Copyright (C) 1996-2005 Paul Mackerras.
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*
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* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/types.h>
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#include <asm/irq.h>
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#include <asm/atomic.h>
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#define HAVE_ARCH_DEVTREE_FIXUPS
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#ifdef CONFIG_PPC32
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/*
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* PCI <-> OF matching functions
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* (XXX should these be here?)
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*/
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struct pci_bus;
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struct pci_dev;
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extern int pci_device_from_OF_node(struct device_node *node,
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u8* bus, u8* devfn);
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extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
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extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
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extern void pci_create_OF_bus_map(void);
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#endif
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/*
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* OF address retreival & translation
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*/
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/* Translate a DMA address from device space to CPU space */
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extern u64 of_translate_dma_address(struct device_node *dev,
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const __be32 *in_addr);
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#ifdef CONFIG_PCI
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extern unsigned long pci_address_to_pio(phys_addr_t address);
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#define pci_address_to_pio pci_address_to_pio
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#endif /* CONFIG_PCI */
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/* Parse the ibm,dma-window property of an OF node into the busno, phys and
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* size parameters.
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*/
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void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
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unsigned long *busno, unsigned long *phys, unsigned long *size);
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extern void kdump_move_device_tree(void);
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/* CPU OF node matching */
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struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
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/* cache lookup */
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struct device_node *of_find_next_cache_node(struct device_node *np);
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#ifdef CONFIG_NUMA
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extern int of_node_to_nid(struct device_node *device);
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#else
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static inline int of_node_to_nid(struct device_node *device) { return 0; }
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#endif
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#define of_node_to_nid of_node_to_nid
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/**
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* of_irq_map_pci - Resolve the interrupt for a PCI device
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* @pdev: the device whose interrupt is to be resolved
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* @out_irq: structure of_irq filled by this function
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*
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* This function resolves the PCI interrupt for a given PCI device. If a
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* device-node exists for a given pci_dev, it will use normal OF tree
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* walking. If not, it will implement standard swizzling and walk up the
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* PCI tree until an device-node is found, at which point it will finish
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* resolving using the OF tree walking.
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*/
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struct pci_dev;
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struct of_irq;
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extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
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extern void of_instantiate_rtc(void);
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/* These includes are put at the bottom because they may contain things
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* that are overridden by this file. Ideally they shouldn't be included
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* by this file, but there are a bunch of .c files that currently depend
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* on it. Eventually they will be cleaned up. */
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#include <linux/of_fdt.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/platform_device.h>
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#endif /* __KERNEL__ */
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#endif /* _POWERPC_PROM_H */
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