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yaml --- r: 227147 b: refs/heads/master c: 45bbaae h: refs/heads/master i: 227145: 0a9c6ff 227143: 4d1a744 v: v3
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Paul Mundt
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Nov 18, 2010
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| --- | ||
| refs/heads/master: 6d9598e24d50a8c72f48a3864327484a30aaee44 | ||
| refs/heads/master: 45bbaae0dcddc275594e23f108cb68869eae7433 |
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trunk/arch/arm/mach-shmobile/include/mach/entry-macro-gic.S
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| /* | ||
| * Copyright (C) 2010 Renesas Solutions Corp. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; version 2 of the License. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
| #include <mach/hardware.h> | ||
| #include <asm/hardware/gic.h> | ||
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| .macro disable_fiq | ||
| .endm | ||
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| .macro get_irqnr_preamble, base, tmp | ||
| ldr \base, =(0xf0000100) | ||
| .endm | ||
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| .macro arch_ret_to_user, tmp1, tmp2 | ||
| .endm | ||
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| /* | ||
| * 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). | ||
| */ | ||
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| .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
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| ldr \irqstat, [\base, #GIC_CPU_INTACK] | ||
| /* bits 12-10 = src CPU, 9-0 = int # */ | ||
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| ldr \tmp, =1021 | ||
| bic \irqnr, \irqstat, #0x1c00 | ||
| cmp \irqnr, #29 | ||
| cmpcc \irqnr, \irqnr | ||
| cmpne \irqnr, \tmp | ||
| cmpcs \irqnr, \irqnr | ||
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| .endm | ||
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| /* | ||
| * 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. | ||
| */ | ||
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| .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 | ||
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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 | ||
| bic \irqnr, \irqstat, #0x1c00 | ||
| mov \tmp, #0 | ||
| cmp \irqnr, #29 | ||
| moveq \tmp, #1 | ||
| streq \irqstat, [\base, #GIC_CPU_EOI] | ||
| cmp \tmp, #0 | ||
| .endm |
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39
trunk/arch/arm/mach-shmobile/include/mach/entry-macro-intc.S
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| /* | ||
| * Copyright (C) 2008 Renesas Solutions Corp. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; version 2 of the License. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
| #include <mach/hardware.h> | ||
| #include <mach/irqs.h> | ||
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| .macro disable_fiq | ||
| .endm | ||
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| .macro get_irqnr_preamble, base, tmp | ||
| ldr \base, =INTFLGA | ||
| .endm | ||
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| .macro arch_ret_to_user, tmp1, tmp2 | ||
| .endm | ||
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| .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
| ldr \irqnr, [\base] | ||
| cmp \irqnr, #0 | ||
| beq 1000f | ||
| /* intevt to irq number */ | ||
| lsr \irqnr, \irqnr, #0x5 | ||
| subs \irqnr, \irqnr, #16 | ||
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| 1000: | ||
| .endm |
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