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ARC: Introduce is_isa_X() functions

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Introduce is_isa_arcv2() and is_isa_arcompact() functions.

These functions only check configuration options and return
compile-time constant so they can be used instead of #ifdef's to
to write cleaner code.

Now we can write:
-------------->8---------------
if (is_isa_arcv2())
	ioc_configure();
-------------->8---------------
instead of:
-------------->8---------------
ifdef CONFIG_ISA_ARCV2
	ioc_configure();
endif
-------------->8---------------

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Eugeniy Paltsev 2018-03-21 15:58:49 +03:00 committed by Alexey Brodkin
parent 5d7a24d646
commit 5e0c68edad
1 changed files with 11 additions and 0 deletions
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11
arch/arc/include/asm/arcregs.h
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@ -8,6 +8,7 @@
#define _ASM_ARC_ARCREGS_H
#include <asm/cache.h>
#include <config.h>
/*
* ARC architecture has additional address space - auxiliary registers.
@ -88,6 +89,16 @@
/* ARCNUM [15:8] - field to identify each core in a multi-core system */
#define CPU_ID_GET() ((read_aux_reg(ARC_AUX_IDENTITY) & 0xFF00) >> 8)
static const inline int is_isa_arcv2(void)
{
return IS_ENABLED(CONFIG_ISA_ARCV2);
}
static const inline int is_isa_arcompact(void)
{
return IS_ENABLED(CONFIG_ISA_ARCOMPACT);
}
#endif /* __ASSEMBLY__ */
#endif /* _ASM_ARC_ARCREGS_H */