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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/include/asm/sections.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/powerpc/include/asm/sections.h')
-rw-r--r-- | kernel/arch/powerpc/include/asm/sections.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/sections.h b/kernel/arch/powerpc/include/asm/sections.h new file mode 100644 index 000000000..a5e930aca --- /dev/null +++ b/kernel/arch/powerpc/include/asm/sections.h @@ -0,0 +1,69 @@ +#ifndef _ASM_POWERPC_SECTIONS_H +#define _ASM_POWERPC_SECTIONS_H +#ifdef __KERNEL__ + +#include <linux/elf.h> +#include <linux/uaccess.h> +#include <asm-generic/sections.h> + +#ifdef __powerpc64__ + +extern char __start_interrupts[]; +extern char __end_interrupts[]; + +extern char __prom_init_toc_start[]; +extern char __prom_init_toc_end[]; + +static inline int in_kernel_text(unsigned long addr) +{ + if (addr >= (unsigned long)_stext && addr < (unsigned long)__init_end) + return 1; + + return 0; +} + +static inline int overlaps_interrupt_vector_text(unsigned long start, + unsigned long end) +{ + unsigned long real_start, real_end; + real_start = __start_interrupts - _stext; + real_end = __end_interrupts - _stext; + + return start < (unsigned long)__va(real_end) && + (unsigned long)__va(real_start) < end; +} + +static inline int overlaps_kernel_text(unsigned long start, unsigned long end) +{ + return start < (unsigned long)__init_end && + (unsigned long)_stext < end; +} + +static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end) +{ +#ifdef CONFIG_KVM_GUEST + extern char kvm_tmp[]; + return start < (unsigned long)kvm_tmp && + (unsigned long)&kvm_tmp[1024 * 1024] < end; +#else + return 0; +#endif +} + +#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#undef dereference_function_descriptor +static inline void *dereference_function_descriptor(void *ptr) +{ + struct ppc64_opd_entry *desc = ptr; + void *p; + + if (!probe_kernel_address(&desc->funcaddr, p)) + ptr = p; + return ptr; +} +#endif + +#endif + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_SECTIONS_H */ |