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MIPS: traps: tidy up ebase calculation

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Rather than #ifdef on CONFIG_KVM_GUEST & redefine the guest kseg0 base
locally, make use of the CAC_BASE macro which has the correct value in
both cases.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11183/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2015-09-22 10:15:22 -07:00 committed by Ralf Baechle
parent ee42a3344c
commit a13c996249
1 changed files with 3 additions and 6 deletions
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9
arch/mips/kernel/traps.c
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@ -37,6 +37,7 @@
#include <linux/irq.h>
#include <linux/perf_event.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <asm/branch.h>
#include <asm/break.h>
@ -2204,12 +2205,8 @@ void __init trap_init(void)
ebase = (unsigned long)
__alloc_bootmem(size, 1 << fls(size), 0);
} else {
#ifdef CONFIG_KVM_GUEST
#define KVM_GUEST_KSEG0 0x40000000
ebase = KVM_GUEST_KSEG0;
#else
ebase = CKSEG0;
#endif
ebase = CAC_BASE;
if (cpu_has_mips_r2_r6)
ebase += (read_c0_ebase() & 0x3ffff000);
}