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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-07-06 15:39:02 -0700
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-08-05 12:56:08 +1000
commitcd3db0c4ca3d237e7ad20f7107216e575705d2b0 (patch)
tree03be7c14bd68a568a6e2f6df2db9fbbdf11c1483 /arch/powerpc/include/asm/mmu.h
parente63075a3c9377536d085bc013cd3fe6323162449 (diff)
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memblock: Remove rmo_size, burry it in arch/powerpc where it belongs
The RMA (RMO is a misnomer) is a concept specific to ppc64 (in fact server ppc64 though I hijack it on embedded ppc64 for similar purposes) and represents the area of memory that can be accessed in real mode (aka with MMU off), or on embedded, from the exception vectors (which is bolted in the TLB) which pretty much boils down to the same thing. We take that out of the generic MEMBLOCK data structure and move it into arch/powerpc where it belongs, renaming it to "RMA" while at it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
-rw-r--r--arch/powerpc/include/asm/mmu.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 7ebf42e..bb40a06 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -2,6 +2,8 @@
#define _ASM_POWERPC_MMU_H_
#ifdef __KERNEL__
+#include <linux/types.h>
+
#include <asm/asm-compat.h>
#include <asm/feature-fixups.h>
@@ -82,6 +84,16 @@ extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup;
extern void early_init_mmu(void);
extern void early_init_mmu_secondary(void);
+extern void setup_initial_memory_limit(phys_addr_t first_memblock_base,
+ phys_addr_t first_memblock_size);
+
+#ifdef CONFIG_PPC64
+/* This is our real memory area size on ppc64 server, on embedded, we
+ * make it match the size our of bolted TLB area
+ */
+extern u64 ppc64_rma_size;
+#endif /* CONFIG_PPC64 */
+
#endif /* !__ASSEMBLY__ */
/* The kernel use the constants below to index in the page sizes array.
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