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MIPS: DEC: Do not set up the FPU interrupt if no FPU

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Following the arrangement for processors that wire FPU exceptions to the
FPE CPU exception handle the case where no FPU is in use -- which for
DECstation systems will only ever happen when the "nofpu" kernel option
has been used -- do not register the FPU interrupt in such a case
either.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9714/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Maciej W. Rozycki 2015-04-03 23:32:22 +01:00 committed by Ralf Baechle
parent f02cf4691e
commit 5ffd7c8b13
1 changed files with 1 additions and 1 deletions
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2
arch/mips/dec/setup.c
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@ -758,7 +758,7 @@ void __init arch_init_irq(void)
dec_interrupt[DEC_IRQ_HALT] = -1; dec_interrupt[DEC_IRQ_HALT] = -1;
/* Register board interrupts: FPU and cascade. */ /* Register board interrupts: FPU and cascade. */
if (dec_interrupt[DEC_IRQ_FPU] >= 0) { if (dec_interrupt[DEC_IRQ_FPU] >= 0 && cpu_has_fpu) {
struct irq_desc *desc_fpu; struct irq_desc *desc_fpu;
int irq_fpu; int irq_fpu;