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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6c87b2202f
For epapr-style boot, we may be little-endian. This change implements the proper conversion for fdt*_to_cpu and cpu_to_fdt*. We also need the full cpu_to_* and *_to_cpu macros for this. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
#ifndef _PPC_BOOT_OF_H_
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#define _PPC_BOOT_OF_H_
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#include "swab.h"
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typedef void *phandle;
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typedef u32 ihandle;
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void of_init(void *promptr);
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int of_call_prom(const char *service, int nargs, int nret, ...);
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unsigned int of_claim(unsigned long virt, unsigned long size,
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unsigned long align);
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void *of_vmlinux_alloc(unsigned long size);
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void of_exit(void);
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void *of_finddevice(const char *name);
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int of_getprop(const void *phandle, const char *name, void *buf,
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const int buflen);
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int of_setprop(const void *phandle, const char *name, const void *buf,
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const int buflen);
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/* Console functions */
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void of_console_init(void);
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typedef u32 __be32;
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#ifdef __LITTLE_ENDIAN__
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#define cpu_to_be16(x) swab16(x)
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#define be16_to_cpu(x) swab16(x)
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#define cpu_to_be32(x) swab32(x)
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#define be32_to_cpu(x) swab32(x)
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#define cpu_to_be64(x) swab64(x)
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#define be64_to_cpu(x) swab64(x)
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#else
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#define cpu_to_be16(x) (x)
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#define be16_to_cpu(x) (x)
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#define cpu_to_be32(x) (x)
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#define be32_to_cpu(x) (x)
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#define cpu_to_be64(x) (x)
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#define be64_to_cpu(x) (x)
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#endif
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#define PROM_ERROR (-1u)
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#endif /* _PPC_BOOT_OF_H_ */
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