Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755876Ab0KLITN (ORCPT ); Fri, 12 Nov 2010 03:19:13 -0500 Received: from mail-pv0-f174.google.com ([74.125.83.174]:36154 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755459Ab0KLITJ (ORCPT ); Fri, 12 Nov 2010 03:19:09 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:date:message-id:in-reply-to:references:subject; b=CxnHE6T/B9W4ln4vi3XCjyWxwvfyaOH80SLNGjT/eVSq7mCyvwSAGY0rwP/v8gZ530 5kDitD5rU5JfskqOiM2hwFA6CN0BFHf1MiMZqugWqKzl75GjflDMxFHbCkV0JpF8v5O0 lsGsEDnfHipu7Ni8MId04VUJv/f2Ezay8zEHw= From: Magnus Damm To: linux@arm.linux.org.uk Cc: kgene.kim@samsung.com, kmpark@infradead.org, konkers@android.com, tony@atomide.com, adharmap@codeaurora.org, avorontsov@mvista.com, linux-kernel@vger.kernel.org, srinidhikasagar@gmail.com, dwalker@codeaurora.org, santosh.shilimkar@ti.com, ccross@android.com, olof@lixom.net, Magnus Damm , linux-arm-kernel@lists.infradead.org Date: Fri, 12 Nov 2010 17:22:01 +0900 Message-Id: <20101112082201.27221.40594.sendpatchset@t400s> In-Reply-To: <20101112082059.27221.52879.sendpatchset@t400s> References: <20101112082059.27221.52879.sendpatchset@t400s> Subject: [PATCH 06/07] ARM: Use shared GIC entry macros on Vexpress Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2661 Lines: 83 From: Magnus Damm Use the GIC demux code in asm/hardware/entry-macro-gic.S on the Versatile Express subarchitecture. Signed-off-by: Magnus Damm --- arch/arm/mach-vexpress/include/mach/entry-macro.S | 57 --------------------- 1 file changed, 1 insertion(+), 56 deletions(-) --- 0001/arch/arm/mach-vexpress/include/mach/entry-macro.S +++ work/arch/arm/mach-vexpress/include/mach/entry-macro.S 2010-11-12 16:03:56.000000000 +0900 @@ -1,4 +1,4 @@ -#include +#include .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 - -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/