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3 Commits

Author SHA1 Message Date
Russell King
2841029393 ARM: make virt_to_idmap() return unsigned long 
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>
 2016-02-08 15:47:28 +00:00
Vitaly Andrianov
df9de3c429 ARM: 8400/1: use virt_to_idmap to get phys_reset address 
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>
 2015-07-17 15:08:17 +01:00
Russell King
045ab94e10 ARM: move reboot code to arch/arm/kernel/reboot.c 
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>
 2015-04-02 09:50:45 +01:00