diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/include/asm/page_32.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/page_32.h')
| -rw-r--r-- | kernel/arch/powerpc/include/asm/page_32.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/page_32.h b/kernel/arch/powerpc/include/asm/page_32.h new file mode 100644 index 000000000..68d73b2a7 --- /dev/null +++ b/kernel/arch/powerpc/include/asm/page_32.h @@ -0,0 +1,51 @@ +#ifndef _ASM_POWERPC_PAGE_32_H +#define _ASM_POWERPC_PAGE_32_H + +#if defined(CONFIG_PHYSICAL_ALIGN) && (CONFIG_PHYSICAL_START != 0) +#if (CONFIG_PHYSICAL_START % CONFIG_PHYSICAL_ALIGN) != 0 +#error "CONFIG_PHYSICAL_START must be a multiple of CONFIG_PHYSICAL_ALIGN" +#endif +#endif + +#define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32 + +#ifdef CONFIG_NOT_COHERENT_CACHE +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES +#endif + +#ifdef CONFIG_PTE_64BIT +#define PTE_FLAGS_OFFSET 4 /* offset of PTE flags, in bytes */ +#else +#define PTE_FLAGS_OFFSET 0 +#endif + +#ifdef CONFIG_PPC_256K_PAGES +#define PTE_SHIFT (PAGE_SHIFT - PTE_T_LOG2 - 2) /* 1/4 of a page */ +#else +#define PTE_SHIFT (PAGE_SHIFT - PTE_T_LOG2) /* full page */ +#endif + +#ifndef __ASSEMBLY__ +/* + * The basic type of a PTE - 64 bits for those CPUs with > 32 bit + * physical addressing. + */ +#ifdef CONFIG_PTE_64BIT +typedef unsigned long long pte_basic_t; +#else +typedef unsigned long pte_basic_t; +#endif + +struct page; +extern void clear_pages(void *page, int order); +static inline void clear_page(void *page) { clear_pages(page, 0); } +extern void copy_page(void *to, void *from); + +#include <asm-generic/getorder.h> + +#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1) +#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1) + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_POWERPC_PAGE_32_H */ |