diff options
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/entry-macro.S | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/arm/mach-tegra/include/mach/entry-macro.S b/arch/arm/mach-tegra/include/mach/entry-macro.S deleted file mode 100644 index 2ba9e5c9d2f..00000000000 --- a/arch/arm/mach-tegra/include/mach/entry-macro.S +++ /dev/null @@ -1,118 +0,0 @@ -/* arch/arm/mach-tegra/include/mach/entry-macro.S - * - * Copyright (C) 2009 Palm, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - * - */ -#include <mach/iomap.h> -#include <mach/io.h> - -#if defined(CONFIG_ARM_GIC) - -#include <asm/hardware/gic.h> - - /* Uses the GIC interrupt controller built into the cpu */ -#define ICTRL_BASE (IO_CPU_VIRT + 0x100) - - .macro disable_fiq - .endm - - .macro get_irqnr_preamble, base, tmp - movw \base, #(ICTRL_BASE & 0x0000ffff) - movt \base, #((ICTRL_BASE & 0xffff0000) >> 16) - .endm - - .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 - - /* bits 12-10 = src CPU, 9-0 = int # */ - ldr \irqstat, [\base, #GIC_CPU_INTACK] - - 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 - -#else - /* legacy interrupt controller for AP16 */ - .macro disable_fiq - .endm - - .macro get_irqnr_preamble, base, tmp - @ enable imprecise aborts - cpsie a - @ EVP base at 0xf010f000 - mov \base, #0xf0000000 - orr \base, #0x00100000 - orr \base, #0x0000f000 - .endm - - .macro arch_ret_to_user, tmp1, tmp2 - .endm - - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \irqnr, [\base, #0x20] @ EVT_IRQ_STS - cmp \irqnr, #0x80 - .endm -#endif |