ARM: 6481/1: Use shared GIC entry macros on OMAP
Common GIC entry macro for omap Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -105,6 +105,35 @@ omap_irq_base: .word 0
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9999:
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.endm
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#ifdef CONFIG_SMP
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/* We assume that irqstat (the raw value of the IRQ acknowledge
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* register) is preserved from the macro above.
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* If there is an IPI, we immediately signal end of interrupt
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* on the controller, since this requires the original irqstat
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* value which we won't easily be able to recreate later.
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*/
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.macro test_for_ipi, irqnr, irqstat, base, tmp
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bic \irqnr, \irqstat, #0x1c00
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cmp \irqnr, #16
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it cc
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strcc \irqstat, [\base, #GIC_CPU_EOI]
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it cs
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cmpcs \irqnr, \irqnr
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.endm
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/* As above, this assumes that irqstat and base are preserved */
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.macro test_for_ltirq, irqnr, irqstat, base, tmp
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bic \irqnr, \irqstat, #0x1c00
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mov \tmp, #0
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cmp \irqnr, #29
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itt eq
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moveq \tmp, #1
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streq \irqstat, [\base, #GIC_CPU_EOI]
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cmp \tmp, #0
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.endm
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#endif /* CONFIG_SMP */
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#else /* MULTI_OMAP2 */
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@ -141,74 +170,15 @@ omap_irq_base: .word 0
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#ifdef CONFIG_ARCH_OMAP4
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#include <asm/hardware/entry-macro-gic.S>
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.macro get_irqnr_preamble, base, tmp
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ldr \base, =OMAP4_IRQ_BASE
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.endm
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/*
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* The interrupt numbering scheme is defined in the
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* interrupt controller spec. To wit:
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*
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* Interrupts 0-15 are IPI
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* 16-28 are reserved
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* 29-31 are local. We allow 30 to be used for the watchdog.
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* 32-1020 are global
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* 1021-1022 are reserved
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* 1023 is "spurious" (no interrupt)
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*
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* For now, we ignore all local interrupts so only return an
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* interrupt if it's between 30 and 1020. The test_for_ipi
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* routine below will pick up on IPIs.
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* A simple read from the controller will tell us the number
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* of the highest priority enabled interrupt.
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* We then just need to check whether it is in the
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* valid range for an IRQ (30-1020 inclusive).
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*/
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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ldr \irqstat, [\base, #GIC_CPU_INTACK]
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ldr \tmp, =1021
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bic \irqnr, \irqstat, #0x1c00
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cmp \irqnr, #29
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cmpcc \irqnr, \irqnr
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cmpne \irqnr, \tmp
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cmpcs \irqnr, \irqnr
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.endm
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#endif
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#endif /* MULTI_OMAP2 */
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#ifdef CONFIG_SMP
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/* We assume that irqstat (the raw value of the IRQ acknowledge
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* register) is preserved from the macro above.
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* If there is an IPI, we immediately signal end of interrupt
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* on the controller, since this requires the original irqstat
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* value which we won't easily be able to recreate later.
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*/
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.macro test_for_ipi, irqnr, irqstat, base, tmp
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bic \irqnr, \irqstat, #0x1c00
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cmp \irqnr, #16
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it cc
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strcc \irqstat, [\base, #GIC_CPU_EOI]
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it cs
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cmpcs \irqnr, \irqnr
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.endm
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/* As above, this assumes that irqstat and base are preserved */
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.macro test_for_ltirq, irqnr, irqstat, base, tmp
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bic \irqnr, \irqstat, #0x1c00
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mov \tmp, #0
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cmp \irqnr, #29
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itt eq
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moveq \tmp, #1
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streq \irqstat, [\base, #GIC_CPU_EOI]
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cmp \tmp, #0
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.endm
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#endif /* CONFIG_SMP */
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.macro irq_prio_table
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.endm
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