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Make virt_to_idmap() return an unsigned long rather than phys_addr_t.
Returning phys_addr_t here makes no sense, because the definition of
virt_to_idmap() is that it shall return a physical address which maps
identically with the virtual address. Since virtual addresses are
limited to 32-bit, identity mapped physical addresses are as well.
Almost all users already had an implicit narrowing cast to unsigned long
so let's make this official and part of this interface.
Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch is to get correct physical address of the reset function for
PAE systems, which use aliased physical memory for booting.
See the "ARM: mm: Introduce virt_to_idmap() with an arch hook" for details.
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Move shutdown and reboot related code to a separate file, out of
process.c. This helps to avoid polluting process.c with non-process
related code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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