diff options
Diffstat (limited to 'arch/powerpc/include/asm/systemcfg.h')
| -rw-r--r-- | arch/powerpc/include/asm/systemcfg.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/systemcfg.h b/arch/powerpc/include/asm/systemcfg.h new file mode 100644 index 000000000000..2f9b1d6a5c98 --- /dev/null +++ b/arch/powerpc/include/asm/systemcfg.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _SYSTEMCFG_H +#define _SYSTEMCFG_H + +/* + * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM + * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>, + * IBM Corp. + */ + +#ifdef CONFIG_PPC64 + +/* + * If the major version changes we are incompatible. + * Minor version changes are a hint. + */ +#define SYSTEMCFG_MAJOR 1 +#define SYSTEMCFG_MINOR 1 + +#include <linux/types.h> + +struct systemcfg { + __u8 eye_catcher[16]; /* Eyecatcher: SYSTEMCFG:PPC64 0x00 */ + struct { /* Systemcfg version numbers */ + __u32 major; /* Major number 0x10 */ + __u32 minor; /* Minor number 0x14 */ + } version; + + /* Note about the platform flags: it now only contains the lpar + * bit. The actual platform number is dead and buried + */ + __u32 platform; /* Platform flags 0x18 */ + __u32 processor; /* Processor type 0x1C */ + __u64 processorCount; /* # of physical processors 0x20 */ + __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */ + __u64 tb_orig_stamp; /* (NU) Timebase at boot 0x30 */ + __u64 tb_ticks_per_sec; /* Timebase tics / sec 0x38 */ + __u64 tb_to_xs; /* (NU) Inverse of TB to 2^20 0x40 */ + __u64 stamp_xsec; /* (NU) 0x48 */ + __u64 tb_update_count; /* (NU) Timebase atomicity ctr 0x50 */ + __u32 tz_minuteswest; /* (NU) Min. west of Greenwich 0x58 */ + __u32 tz_dsttime; /* (NU) Type of dst correction 0x5C */ + __u32 dcache_size; /* L1 d-cache size 0x60 */ + __u32 dcache_line_size; /* L1 d-cache line size 0x64 */ + __u32 icache_size; /* L1 i-cache size 0x68 */ + __u32 icache_line_size; /* L1 i-cache line size 0x6C */ +}; + +extern struct systemcfg *systemcfg; + +#endif /* CONFIG_PPC64 */ +#endif /* _SYSTEMCFG_H */ |