From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Fri, 23 Sep 2011 17:51:24 +0100 Subject: [RFC PATCH 06/14] ARM: exynos4: convert to CONFIG_MULTI_IRQ_HANDLER In-Reply-To: <1316796692-15964-1-git-send-email-marc.zyngier@arm.com> References: <1316796692-15964-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1316796692-15964-7-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Convert the Exynos4 platforms to be using the gic_handle_irq_offset() function as their primary interrupt handler. Cc: Ben Dooks Cc: Kukjin Kim Signed-off-by: Marc Zyngier --- arch/arm/Kconfig | 1 + arch/arm/mach-exynos4/include/mach/entry-macro.S | 62 ---------------------- arch/arm/mach-exynos4/mach-armlex4210.c | 2 + arch/arm/mach-exynos4/mach-nuri.c | 2 + arch/arm/mach-exynos4/mach-origen.c | 2 + arch/arm/mach-exynos4/mach-smdk4212.c | 2 + arch/arm/mach-exynos4/mach-smdkv310.c | 2 + arch/arm/mach-exynos4/mach-universal_c210.c | 2 + 8 files changed, 13 insertions(+), 62 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index d3e246c..e32a4d3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -787,6 +787,7 @@ config ARCH_EXYNOS4 select HAVE_S3C_RTC if RTC_CLASS select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG + select MULTI_IRQ_HANDLER help Samsung EXYNOS4 series based systems diff --git a/arch/arm/mach-exynos4/include/mach/entry-macro.S b/arch/arm/mach-exynos4/include/mach/entry-macro.S index 807d05d..efe9a00 100644 --- a/arch/arm/mach-exynos4/include/mach/entry-macro.S +++ b/arch/arm/mach-exynos4/include/mach/entry-macro.S @@ -9,71 +9,9 @@ * warranty of any kind, whether express or implied. */ -#include -#include -#include - .macro disable_fiq .endm - .macro get_irqnr_preamble, base, tmp - ldr \base, =gic_cpu_base_addr - ldr \base, [\base] - mrc p15, 0, \tmp, c0, c0, 5 - and \tmp, \tmp, #3 - cmp \tmp, #1 - addeq \base, \base, #EXYNOS4_GIC_BANK_OFFSET - .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 - - ldr \irqstat, [\base, #GIC_CPU_INTACK] /* bits 12-10 = src CPU, 9-0 = int # */ - - ldr \tmp, =1021 - - bic \irqnr, \irqstat, #0x1c00 - - cmp \irqnr, #15 - cmpcc \irqnr, \irqnr - cmpne \irqnr, \tmp - cmpcs \irqnr, \irqnr - addne \irqnr, \irqnr, #32 - - .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 - diff --git a/arch/arm/mach-exynos4/mach-armlex4210.c b/arch/arm/mach-exynos4/mach-armlex4210.c index 8c82c6b..969e04c 100644 --- a/arch/arm/mach-exynos4/mach-armlex4210.c +++ b/arch/arm/mach-exynos4/mach-armlex4210.c @@ -15,6 +15,7 @@ #include #include +#include #include #include @@ -213,6 +214,7 @@ MACHINE_START(ARMLEX4210, "ARMLEX4210") .soc = &exynos4_soc_desc, .init_irq = exynos4_init_irq, .map_io = armlex4210_map_io, + .handle_irq = gic_handle_irq_offset, .init_machine = armlex4210_machine_init, .timer = &exynos4_timer, MACHINE_END diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c index 5780ee3..5e133ae 100644 --- a/arch/arm/mach-exynos4/mach-nuri.c +++ b/arch/arm/mach-exynos4/mach-nuri.c @@ -28,6 +28,7 @@ #include