ARM: 6480/1: Use shared GIC entry macros on Vexpress

Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the Versatile Express subarchitecture.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 56 deletions

diff --git a/arch/arm/mach-vexpress/include/mach/entry-macro.S b/arch/arm/mach-vexpress/include/mach/entry-macro.S
index 20e9fb514f0a..19d5ac8ba071 100644
--- a/arch/arm/mach-vexpress/include/mach/entry-macro.S
+++ b/arch/arm/mach-vexpress/include/mach/entry-macro.S
@@ -1,4 +1,4 @@
-#include <asm/hardware/gic.h>
+#include <asm/hardware/entry-macro-gic.S>
 
         .macro  disable_fiq
         .endm
@@ -10,58 +10,3 @@
 
         .macro  arch_ret_to_user, tmp1, tmp2
         .endm
-
-        /*
-         * The interrupt numbering scheme is defined in the
-         * interrupt controller spec.  To wit:
-         *
-         * Interrupts 0-15 are IPI
-         * 16-28 are reserved
-         * 29-31 are local.  We allow 30 to be used for the watchdog.
-         * 32-1020 are global
-         * 1021-1022 are reserved
-         * 1023 is "spurious" (no interrupt)
-         *
-         * For now, we ignore all local interrupts so only return an interrupt if it's
-         * between 30 and 1020.  The test_for_ipi routine below will pick up on IPIs.
-         *
-         * A simple read from the controller will tell us the number of the highest
-         * priority enabled interrupt.  We then just need to check whether it is in the
-         * valid range for an IRQ (30-1020 inclusive).
-         */
-
-        .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-        ldr     \irqstat, [\base, #GIC_CPU_INTACK] /* bits 12-10 = src CPU, 9-0 = int # */
-        ldr     \tmp, =1021
-        bic     \irqnr, \irqstat, #0x1c00
-        cmp     \irqnr, #29
-        cmpcc   \irqnr, \irqnr
-        cmpne   \irqnr, \tmp
-        cmpcs   \irqnr, \irqnr
-        .endm
-
-        /* We assume that irqstat (the raw value of the IRQ acknowledge
-         * register) is preserved from the macro above.
-         * If there is an IPI, we immediately signal end of interrupt on the
-         * controller, since this requires the original irqstat value which
-         * we won't easily be able to recreate later.
-         */
-
-        .macro test_for_ipi, irqnr, irqstat, base, tmp
-        bic     \irqnr, \irqstat, #0x1c00
-        cmp     \irqnr, #16
-        strcc   \irqstat, [\base, #GIC_CPU_EOI]
-        cmpcs   \irqnr, \irqnr
-        .endm
-
-        /* As above, this assumes that irqstat and base are preserved.. */
-
-        .macro test_for_ltirq, irqnr, irqstat, base, tmp
-        bic     \irqnr, \irqstat, #0x1c00
-        mov     \tmp, #0
-        cmp     \irqnr, #29
-        moveq   \tmp, #1
-        streq   \irqstat, [\base, #GIC_CPU_EOI]
-        cmp     \tmp, #0
-        .endm
-