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Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support. |
Date: |
Thu, 22 Dec 2011 12:30:56 +0000 |
On 22 December 2011 07:03, Evgeny Voevodin <address@hidden> wrote:
> Second GIC (external) is represented as "exynos4210.gic" with splitted
> mapping for CPU (0x10480000) and Distributer (0x10490000) (we used
> arm_gic.c availability to split CPU and Distributer memories).
>
> The reason for creation of this device with it's own read/write functions
> is:
>
> CPU and Distributer registers which are banked per SMP Core in internal GIC
> are not banked in external GIC and their offsets could not be used as is
> with arm_gic.c.
> External GIC registers in comparison to Internal GIC registers are moved
> from base by offset n * 0x8000 for each SMP Core, where n is SMP Core index.
Right, so just map each of the memory regions arm_gic exposes for
core 0, core 1, ... to these addresses, and don't map the memory
region corresponding to "CPU interface for this core" at all.
-- PMM
- [Qemu-devel] [PATCH v4 02/11] ARM: exynos4210: UART support, (continued)
- [Qemu-devel] [PATCH v4 02/11] ARM: exynos4210: UART support, Evgeny Voevodin, 2011/12/19
- [Qemu-devel] [PATCH v4 08/11] hw/exynos4210.c: Boot secondary CPU., Evgeny Voevodin, 2011/12/19
- [Qemu-devel] [PATCH v4 06/11] hw/arm_boot.c: Extend secondary CPU bootloader., Evgeny Voevodin, 2011/12/19
- [Qemu-devel] [PATCH v4 05/11] ARM: exynos4210: PWM support., Evgeny Voevodin, 2011/12/19
- [Qemu-devel] [PATCH v4 10/11] hw/exynos4210.c: Add LAN support for SMDKC210., Evgeny Voevodin, 2011/12/19
- [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Evgeny Voevodin, 2011/12/19
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Peter Maydell, 2011/12/21
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Evgeny Voevodin, 2011/12/21
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Peter Maydell, 2011/12/21
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Evgeny Voevodin, 2011/12/22
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support.,
Peter Maydell <=
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Evgeny Voevodin, 2011/12/22
- Re: [Qemu-devel] [PATCH v4 04/11] ARM: exynos4210: IRQ subsystem support., Peter Maydell, 2011/12/22
[Qemu-devel] [PATCH v4 09/11] hw/lan9118: Add basic 16-bit mode support., Evgeny Voevodin, 2011/12/19
[Qemu-devel] [PATCH v4 07/11] ARM: exynos4210: MCT support., Evgeny Voevodin, 2011/12/19
[Qemu-devel] [PATCH v4 11/11] Exynos4210: added display controller implementation, Evgeny Voevodin, 2011/12/19