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Message-ID: <CAH9JG2VC9EPnhij=VOrVOmhMHdJ_AfruT62weHALOE5e=ViFUw@mail.gmail.com>
Date:	Thu, 11 Apr 2013 09:17:43 +0900
From:	Kyungmin Park <kmpark@...radead.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Kukjin Kim <kgene.kim@...sung.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/30] ARM: exynos: prepare for sparse IRQ

On Thu, Apr 11, 2013 at 9:04 AM, Arnd Bergmann <arnd@...db.de> wrote:
> When we enable CONFIG_SPARSE_IRQ, we have to set the value of NR_IRQS in
> the machine_desc for legacy IRQ domains, and any file referring to the
> number of interrupts or a specific number must include the mach/irqs.h
> header file explicitly.

It's really wanted feature.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
> ---
>  arch/arm/mach-exynos/dev-uart.c          | 1 +
>  arch/arm/mach-exynos/include/mach/irqs.h | 5 ++++-
>  arch/arm/mach-exynos/mach-armlex4210.c   | 2 ++
>  arch/arm/mach-exynos/mach-exynos4-dt.c   | 3 +++
>  arch/arm/mach-exynos/mach-exynos5-dt.c   | 2 ++
>  arch/arm/mach-exynos/mach-nuri.c         | 2 ++
>  arch/arm/mach-exynos/mach-origen.c       | 2 ++
>  arch/arm/mach-exynos/mach-smdk4x12.c     | 2 ++
>  arch/arm/mach-exynos/mach-smdkv310.c     | 3 +++
>  arch/arm/plat-samsung/irq-vic-timer.c    | 1 +
>  arch/arm/plat-samsung/pm.c               | 1 +
>  arch/arm/plat-samsung/s5p-irq.c          | 1 +
>  12 files changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-exynos/dev-uart.c b/arch/arm/mach-exynos/dev-uart.c
> index 7c42f4b..c48aff0 100644
> --- a/arch/arm/mach-exynos/dev-uart.c
> +++ b/arch/arm/mach-exynos/dev-uart.c
> @@ -20,6 +20,7 @@
>  #include <asm/mach/irq.h>
>  #include <mach/hardware.h>
>  #include <mach/map.h>
> +#include <mach/irqs.h>
>
>  #include <plat/devs.h>
>
> diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
> index 35fe6d5..c72f59d 100644
> --- a/arch/arm/mach-exynos/include/mach/irqs.h
> +++ b/arch/arm/mach-exynos/include/mach/irqs.h
> @@ -467,7 +467,10 @@
>  #define IRQ_TIMER_BASE                 (IRQ_GPIO_END + 64)
>
>  /* Set the default NR_IRQS */
> +#define EXYNOS_NR_IRQS                 (IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
>
> -#define NR_IRQS                                (IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
> +#ifndef CONFIG_SPARSE_IRQ
> +#define NR_IRQS                                EXYNOS_NR_IRQS
> +#endif
>
>  #endif /* __ASM_ARCH_IRQS_H */
> diff --git a/arch/arm/mach-exynos/mach-armlex4210.c b/arch/arm/mach-exynos/mach-armlex4210.c
> index 2c23b65..a503e02 100644
> --- a/arch/arm/mach-exynos/mach-armlex4210.c
> +++ b/arch/arm/mach-exynos/mach-armlex4210.c
> @@ -25,6 +25,7 @@
>  #include <plat/regs-srom.h>
>  #include <plat/sdhci.h>
>
> +#include <mach/irqs.h>
>  #include <mach/map.h>
>
>  #include "common.h"
> @@ -196,6 +197,7 @@ static void __init armlex4210_machine_init(void)
>  MACHINE_START(ARMLEX4210, "ARMLEX4210")
>         /* Maintainer: Alim Akhtar <alim.akhtar@...sung.com> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = armlex4210_map_io,
> diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
> index b9ed834..5f23682 100644
> --- a/arch/arm/mach-exynos/mach-exynos4-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
> @@ -20,6 +20,8 @@
>
>  #include <asm/mach/arch.h>
>  #include <plat/mfc.h>
> +#include <mach/irqs.h>
> +
>
>  #include "common.h"
>
> @@ -54,6 +56,7 @@ static void __init exynos4_reserve(void)
>  }
>  DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
>         /* Maintainer: Thomas Abraham <thomas.abraham@...aro.org> */
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = exynos4_dt_map_io,
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 753b94f..8b7456a 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -16,6 +16,7 @@
>  #include <linux/clocksource.h>
>
>  #include <asm/mach/arch.h>
> +#include <mach/irqs.h>
>  #include <mach/regs-pmu.h>
>
>  #include <plat/cpu.h>
> @@ -76,6 +77,7 @@ static void __init exynos5_reserve(void)
>
>  DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
>         /* Maintainer: Kukjin Kim <kgene.kim@...sung.com> */
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .init_irq       = exynos5_init_irq,
>         .smp            = smp_ops(exynos_smp_ops),
>         .map_io         = exynos5_dt_map_io,
> diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
> index 0c10852..fbae331 100644
> --- a/arch/arm/mach-exynos/mach-nuri.c
> +++ b/arch/arm/mach-exynos/mach-nuri.c
> @@ -53,6 +53,7 @@
>  #include <plat/fimc-core.h>
>  #include <plat/camport.h>
>
> +#include <mach/irqs.h>
>  #include <mach/map.h>
>
>  #include "common.h"
> @@ -1376,6 +1377,7 @@ static void __init nuri_machine_init(void)
>  MACHINE_START(NURI, "NURI")
>         /* Maintainer: Kyungmin Park <kyungmin.park@...sung.com> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = nuri_map_io,
> diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
> index f662345..a3ee06a 100644
> --- a/arch/arm/mach-exynos/mach-origen.c
> +++ b/arch/arm/mach-exynos/mach-origen.c
> @@ -46,6 +46,7 @@
>  #include <plat/hdmi.h>
>
>  #include <mach/map.h>
> +#include <mach/irqs.h>
>
>  #include <drm/exynos_drm.h>
>  #include "common.h"
> @@ -811,6 +812,7 @@ static void __init origen_machine_init(void)
>  MACHINE_START(ORIGEN, "ORIGEN")
>         /* Maintainer: JeongHyeon Kim <jhkim@...ignal.co.kr> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = origen_map_io,
> diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c b/arch/arm/mach-exynos/mach-smdk4x12.c
> index 184faa3..3ebd5e4 100644
> --- a/arch/arm/mach-exynos/mach-smdk4x12.c
> +++ b/arch/arm/mach-exynos/mach-smdk4x12.c
> @@ -39,6 +39,7 @@
>  #include <plat/regs-serial.h>
>  #include <plat/sdhci.h>
>
> +#include <mach/irqs.h>
>  #include <mach/map.h>
>
>  #include <drm/exynos_drm.h>
> @@ -384,6 +385,7 @@ MACHINE_START(SMDK4412, "SMDK4412")
>         /* Maintainer: Kukjin Kim <kgene.kim@...sung.com> */
>         /* Maintainer: Changhwan Youn <chaos.youn@...sung.com> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = smdk4x12_map_io,
> diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
> index ee815a7..5527a28 100644
> --- a/arch/arm/mach-exynos/mach-smdkv310.c
> +++ b/arch/arm/mach-exynos/mach-smdkv310.c
> @@ -43,6 +43,7 @@
>  #include <plat/clock.h>
>  #include <plat/hdmi.h>
>
> +#include <mach/irqs.h>
>  #include <mach/map.h>
>
>  #include <drm/exynos_drm.h>
> @@ -420,6 +421,7 @@ MACHINE_START(SMDKV310, "SMDKV310")
>         /* Maintainer: Kukjin Kim <kgene.kim@...sung.com> */
>         /* Maintainer: Changhwan Youn <chaos.youn@...sung.com> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = smdkv310_map_io,
> @@ -432,6 +434,7 @@ MACHINE_END
>  MACHINE_START(SMDKC210, "SMDKC210")
>         /* Maintainer: Kukjin Kim <kgene.kim@...sung.com> */
>         .atag_offset    = 0x100,
> +       .nr_irqs        = EXYNOS_NR_IRQS,
>         .smp            = smp_ops(exynos_smp_ops),
>         .init_irq       = exynos4_init_irq,
>         .map_io         = smdkv310_map_io,
> diff --git a/arch/arm/plat-samsung/irq-vic-timer.c b/arch/arm/plat-samsung/irq-vic-timer.c
> index 5d205e7..0fceb42 100644
> --- a/arch/arm/plat-samsung/irq-vic-timer.c
> +++ b/arch/arm/plat-samsung/irq-vic-timer.c
> @@ -20,6 +20,7 @@
>  #include <linux/io.h>
>
>  #include <mach/map.h>
> +#include <mach/irqs.h>
>  #include <plat/cpu.h>
>  #include <plat/irq-vic-timer.h>
>  #include <plat/regs-timer.h>
> diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
> index 002b147..53210ec 100644
> --- a/arch/arm/plat-samsung/pm.c
> +++ b/arch/arm/plat-samsung/pm.c
> @@ -27,6 +27,7 @@
>  #include <plat/regs-serial.h>
>  #include <mach/regs-clock.h>
>  #include <mach/regs-irq.h>
> +#include <mach/irqs.h>
>  #include <asm/irq.h>
>
>  #include <plat/pm.h>
> diff --git a/arch/arm/plat-samsung/s5p-irq.c b/arch/arm/plat-samsung/s5p-irq.c
> index 103e371..ff1a760 100644
> --- a/arch/arm/plat-samsung/s5p-irq.c
> +++ b/arch/arm/plat-samsung/s5p-irq.c
> @@ -15,6 +15,7 @@
>  #include <linux/io.h>
>  #include <linux/irqchip/arm-vic.h>
>
> +#include <mach/irqs.h>
>  #include <mach/map.h>
>  #include <plat/regs-timer.h>
>  #include <plat/cpu.h>
> --
> 1.8.1.2
>
>
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