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ARM: GIC: private a standard get_irqnr_preamble assembler macro

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Provide a standard get_irqnr_preamble assembler macro for platforms
to use, which retrieves the base address of the GIC CPU interface
from gic_cpu_base_addr.  Allow platforms to override this by defining
HAVE_GET_IRQNR_PREAMBLE.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2010-12-05 08:51:38 +00:00
parent bef8f9ee32
commit 7627dc802a
7 changed files with 10 additions and 16 deletions
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7
arch/arm/include/asm/hardware/entry-macro-gic.S
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@@ -10,6 +10,13 @@
#include <asm/hardware/gic.h>
#ifndef HAVE_GET_IRQNR_PREAMBLE
.macro get_irqnr_preamble, base, tmp
ldr \base, =gic_cpu_base_addr
ldr \base, [\base]
.endm
#endif
/*
* The interrupt numbering scheme is defined in the
* interrupt controller spec. To wit: