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

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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__