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2012-11-29Documentation: Fixes a word in Documentation/arm64/memory.txtTekkaman Ninja
Fixes a term in Documentation/arm64/memory.txt The modification is based on Catalin Marinas <catalin.marinas@arm.com>'s suggestion: "memory" in "ffffffc000000000 ffffffffffffffff 256GB memory" should be treated as "kernel logical memory map". Signed-off-by: Fu Wei <tekkamanninja@gmail.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-23arm64: Move PCI_IOBASE closer to MODULES_VADDRCatalin Marinas
This is to reuse the same pmd table that is sparsely populated with the modules space. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-09-17arm64: MMU definitionsCatalin Marinas
The virtual memory layout is described in Documentation/arm64/memory.txt. This patch adds the MMU definitions for the 4KB and 64KB translation table configurations. The SECTION_SIZE is 2MB with 4KB page and 512MB with 64KB page configuration. PHYS_OFFSET is calculated at run-time and stored in a variable (no run-time code patching at this stage). On the current implementation, both user and kernel address spaces are 512G (39-bit) each with a maximum of 256G for the RAM linear mapping. Linux uses 3 levels of translation tables with the 4K page configuration and 2 levels with the 64K configuration. Extending the memory space beyond 39-bit with the 4K pages or 42-bit with 64K pages requires an additional level of translation tables. The SPARSEMEM configuration is global to all AArch64 platforms and allows for 1GB sections with SPARSEMEM_VMEMMAP enabled by default. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-17arm64: Kernel booting and initialisationCatalin Marinas
The patch adds the kernel booting and the initial setup code. Documentation/arm64/booting.txt describes the booting protocol on the AArch64 Linux kernel. This is subject to change following the work on boot standardisation, ACPI. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>