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ARM: virt: use PSR_N_BIT for detecting boot CPU mode mismatch 

During boot, we detect whether or not all CPUs are brought up in the
same mode and signal this to the kernel using the N bit in the SPSR.

This patch tidies up the checking code to use the PSR_N_BIT macro,
rather than hardcoding the bit field and commenting it as such.

Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Will Deacon 2012-12-02 17:44:36 +00:00
parent 8e9c24a2b2
commit 4e3c194480
1 changed files with 2 additions and 2 deletions
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4
arch/arm/include/asm/virt.h
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@ -24,9 +24,9 @@
/*
* Flag indicating that the kernel was not entered in the same mode on every
* CPU. The zImage loader stashes this value in an SPSR, so we need an
* architecturally defined flag bit here (the N flag, as it happens)
* architecturally defined flag bit here.
*/
#define BOOT_CPU_MODE_MISMATCH (1<<31)
#define BOOT_CPU_MODE_MISMATCH PSR_N_BIT
#ifndef __ASSEMBLY__