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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-12-20 04:54:54 -0500 |
| commit | 93b8eef1c098efbea2f1fc0be7e3c681f259a7e7 (patch) | |
| tree | 462cc8c2bc07bbc825dab2a200891a28d8643329 /arch/cris/include/arch-v32/arch/page.h | |
| parent | Input: libps2 - handle 0xfc responses from devices (diff) | |
| parent | Linux 2.6.28-rc9 (diff) | |
| download | linux-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.tar.xz linux-dev-93b8eef1c098efbea2f1fc0be7e3c681f259a7e7.zip | |
Merge commit 'v2.6.28-rc9' into next
Diffstat (limited to 'arch/cris/include/arch-v32/arch/page.h')
| -rw-r--r-- | arch/cris/include/arch-v32/arch/page.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v32/arch/page.h b/arch/cris/include/arch-v32/arch/page.h new file mode 100644 index 000000000000..20f1b4806bfe --- /dev/null +++ b/arch/cris/include/arch-v32/arch/page.h @@ -0,0 +1,27 @@ +#ifndef _ASM_CRIS_ARCH_PAGE_H +#define _ASM_CRIS_ARCH_PAGE_H + + +#ifdef __KERNEL__ + +#define PAGE_OFFSET KSEG_C /* kseg_c is mapped to physical ram. */ + +/* + * Macros to convert between physical and virtual addresses. By stripping a + * selected bit it's possible to convert between KSEG_x and 0x40000000 where the + * DRAM really resides. DRAM is virtually at 0xc. + */ +#ifndef CONFIG_ETRAX_VCS_SIM +#define __pa(x) ((unsigned long)(x) & 0x7fffffff) +#define __va(x) ((void *)((unsigned long)(x) | 0x80000000)) +#else +#define __pa(x) ((unsigned long)(x) & 0x3fffffff) +#define __va(x) ((void *)((unsigned long)(x) | 0xc0000000)) +#endif + +#define VM_STACK_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ + VM_MAYREAD | VM_MAYWRITE) + +#endif /* __KERNEL__ */ + +#endif /* _ASM_CRIS_ARCH_PAGE_H */ |