From: Catalin Marinas Date: Tue, 23 Oct 2012 13:51:16 +0000 (+0100) Subject: arm64: Move PCI_IOBASE closer to MODULES_VADDR X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e3978cde;p=deliverable%2Flinux.git arm64: Move PCI_IOBASE closer to MODULES_VADDR This is to reuse the same pmd table that is sparsely populated with the modules space. Signed-off-by: Catalin Marinas --- diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index dbbdcbba75a3..4110cca96bd6 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -27,17 +27,17 @@ Start End Size Use ----------------------------------------------------------------------- 0000000000000000 0000007fffffffff 512GB user -ffffff8000000000 ffffffbbfffcffff ~240GB vmalloc +ffffff8000000000 ffffffbbfffeffff ~240GB vmalloc -ffffffbbfffd0000 ffffffbcfffdffff 64KB [guard page] +ffffffbbffff0000 ffffffbbffffffff 64KB [guard page] -ffffffbbfffe0000 ffffffbcfffeffff 64KB PCI I/O space +ffffffbc00000000 ffffffbdffffffff 8GB vmemmap -ffffffbbffff0000 ffffffbcffffffff 64KB [guard page] +ffffffbe00000000 ffffffbffbbfffff ~8GB [guard, future vmmemap] -ffffffbc00000000 ffffffbdffffffff 8GB vmemmap +ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O space -ffffffbe00000000 ffffffbffbffffff ~8GB [guard, future vmmemap] +ffffffbbffff0000 ffffffbcffffffff ~2MB [guard] ffffffbffc000000 ffffffbfffffffff 64MB modules diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index d10778fe91e5..54f6116697f7 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -114,7 +114,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) * I/O port access primitives. */ #define IO_SPACE_LIMIT 0xffff -#define PCI_IOBASE ((void __iomem *)0xffffffbbfffe0000UL) +#define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_2M)) static inline u8 inb(unsigned long addr) {