From ec0a2ed6d8a5e555edef907895c041e285fdb495 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 19 Oct 2015 08:35:30 +0300 Subject: These changes are a raw update to a vanilla kernel 4.1.10, with the recently announced rt patch patch-4.1.10-rt10.patch. No further changes needed. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: I9a0cf084498133b10771e744b6da4b29dff706ba Signed-off-by: José Pekkarinen --- kernel/arch/arm64/include/asm/memory.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'kernel/arch/arm64/include/asm/memory.h') diff --git a/kernel/arch/arm64/include/asm/memory.h b/kernel/arch/arm64/include/asm/memory.h index f800d45ea..44a59c20e 100644 --- a/kernel/arch/arm64/include/asm/memory.h +++ b/kernel/arch/arm64/include/asm/memory.h @@ -113,6 +113,14 @@ extern phys_addr_t memstart_addr; /* PHYS_OFFSET - the physical address of the start of memory. */ #define PHYS_OFFSET ({ memstart_addr; }) +/* + * The maximum physical address that the linear direct mapping + * of system RAM can cover. (PAGE_OFFSET can be interpreted as + * a 2's complement signed quantity and negated to derive the + * maximum size of the linear mapping.) + */ +#define MAX_MEMBLOCK_ADDR ({ memstart_addr - PAGE_OFFSET - 1; }) + /* * PFNs are used to describe any physical page; this means * PFN 0 == physical address 0. -- cgit 1.2.3-korg