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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-07-28 11:59:34 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-20 10:25:06 +1000
commit57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea (patch)
tree4268a98ad222dbcf790749aed52417eb0a3a2a35 /arch/powerpc/include/asm/page.h
parent0257c99cdfaca53a881339e1cbca638c61569b05 (diff)
powerpc: Add memory management headers for new 64-bit BookE
This adds the PTE and pgtable format definitions, along with changes to the kernel memory map and other definitions related to implementing support for 64-bit Book3E. This also shields some asm-offset bits that are currently only relevant on 32-bit We also move the definition of the "linux" page size constants to the common mmu.h file and add a few sizes that are relevant to embedded processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/page.h')
-rw-r--r--arch/powerpc/include/asm/page.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 4940662ee87..ff24254990e 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -139,7 +139,11 @@ extern phys_addr_t kernstart_addr;
* Don't compare things with KERNELBASE or PAGE_OFFSET to test for
* "kernelness", use is_kernel_addr() - it should do what you want.
*/
+#ifdef CONFIG_PPC_BOOK3E_64
+#define is_kernel_addr(x) ((x) >= 0x8000000000000000ul)
+#else
#define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
+#endif
#ifndef __ASSEMBLY__