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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-12 06:55:47 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-12 06:55:47 +0200
commite86908614f2c7fec401827e5cefd7a6ea9407f85 (patch)
treefcb5d9e52422b37bdaf0e647126ebdfc1680f162 /include/asm-ppc/page.h
parentMerge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/... (diff)
parent[POWERPC] Add memchr() to the bootwrapper (diff)
downloadlinux-e86908614f2c7fec401827e5cefd7a6ea9407f85.tar.xz
linux-e86908614f2c7fec401827e5cefd7a6ea9407f85.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
Diffstat (limited to 'include/asm-ppc/page.h')
-rw-r--r--include/asm-ppc/page.h44
1 files changed, 2 insertions, 42 deletions
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index fe95c8258cf9..ad4c5a1bc9d6 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -97,62 +97,22 @@ extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
extern void copy_user_page(void *to, void *from, unsigned long vaddr,
struct page *pg);
-#ifndef CONFIG_APUS
#define PPC_MEMSTART 0
-#define PPC_PGSTART 0
#define PPC_MEMOFFSET PAGE_OFFSET
-#else
-extern unsigned long ppc_memstart;
-extern unsigned long ppc_pgstart;
-extern unsigned long ppc_memoffset;
-#define PPC_MEMSTART ppc_memstart
-#define PPC_PGSTART ppc_pgstart
-#define PPC_MEMOFFSET ppc_memoffset
-#endif
-#if defined(CONFIG_APUS) && !defined(MODULE)
-/* map phys->virtual and virtual->phys for RAM pages */
-static inline unsigned long ___pa(unsigned long v)
-{
- unsigned long p;
- asm volatile ("1: addis %0, %1, %2;"
- ".section \".vtop_fixup\",\"aw\";"
- ".align 1;"
- ".long 1b;"
- ".previous;"
- : "=r" (p)
- : "b" (v), "K" (((-PAGE_OFFSET) >> 16) & 0xffff));
-
- return p;
-}
-static inline void* ___va(unsigned long p)
-{
- unsigned long v;
- asm volatile ("1: addis %0, %1, %2;"
- ".section \".ptov_fixup\",\"aw\";"
- ".align 1;"
- ".long 1b;"
- ".previous;"
- : "=r" (v)
- : "b" (p), "K" (((PAGE_OFFSET) >> 16) & 0xffff));
-
- return (void*) v;
-}
-#else
#define ___pa(vaddr) ((vaddr)-PPC_MEMOFFSET)
#define ___va(paddr) ((paddr)+PPC_MEMOFFSET)
-#endif
extern int page_is_ram(unsigned long pfn);
#define __pa(x) ___pa((unsigned long)(x))
#define __va(x) ((void *)(___va((unsigned long)(x))))
-#define ARCH_PFN_OFFSET (PPC_PGSTART)
+#define ARCH_PFN_OFFSET 0
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT)
-#define pfn_valid(pfn) (((pfn) - PPC_PGSTART) < max_mapnr)
+#define pfn_valid(pfn) ((pfn) < max_mapnr)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
/* Pure 2^n version of get_order */