diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/x86/include/asm/page_64.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/x86/include/asm/page_64.h')
-rw-r--r-- | kernel/arch/x86/include/asm/page_64.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/arch/x86/include/asm/page_64.h b/kernel/arch/x86/include/asm/page_64.h new file mode 100644 index 000000000..b3bebf9e5 --- /dev/null +++ b/kernel/arch/x86/include/asm/page_64.h @@ -0,0 +1,46 @@ +#ifndef _ASM_X86_PAGE_64_H +#define _ASM_X86_PAGE_64_H + +#include <asm/page_64_types.h> + +#ifndef __ASSEMBLY__ + +/* duplicated to the one in bootmem.h */ +extern unsigned long max_pfn; +extern unsigned long phys_base; + +static inline unsigned long __phys_addr_nodebug(unsigned long x) +{ + unsigned long y = x - __START_KERNEL_map; + + /* use the carry flag to determine if x was < __START_KERNEL_map */ + x = y + ((x > y) ? phys_base : (__START_KERNEL_map - PAGE_OFFSET)); + + return x; +} + +#ifdef CONFIG_DEBUG_VIRTUAL +extern unsigned long __phys_addr(unsigned long); +extern unsigned long __phys_addr_symbol(unsigned long); +#else +#define __phys_addr(x) __phys_addr_nodebug(x) +#define __phys_addr_symbol(x) \ + ((unsigned long)(x) - __START_KERNEL_map + phys_base) +#endif + +#define __phys_reloc_hide(x) (x) + +#ifdef CONFIG_FLATMEM +#define pfn_valid(pfn) ((pfn) < max_pfn) +#endif + +void clear_page(void *page); +void copy_page(void *to, void *from); + +#endif /* !__ASSEMBLY__ */ + +#ifdef CONFIG_X86_VSYSCALL_EMULATION +# define __HAVE_ARCH_GATE_AREA 1 +#endif + +#endif /* _ASM_X86_PAGE_64_H */ |