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Message-ID: <4FECB95D.7010200@zytor.com>
Date: Thu, 28 Jun 2012 13:06:53 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Alessandro Rubini <rubini@...dd.com>
CC: linux-kernel@...r.kernel.org,
Giancarlo Asnaghi <giancarlo.asnaghi@...com>,
Alan Cox <alan@...ux.intel.com>,
Russell King <linux@....linux.org.uk>, x86@...nel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Arnd Bergmann <arnd@...db.de>,
linux-arm-kernel@...ts.infradead.org, linux-serial@...r.kernel.org,
linux-arch@...r.kernel.org
Subject: Re: [PATCH V2 5/6] x86: add CONFIG_ARM_AMBA, selected by STA2X11
On 05/28/2012 09:37 AM, Alessandro Rubini wrote:
> The sta2x11 I/O Hub is a bridge from PCIe to AMBA. It reuses a number
> of amba drivers and needs to activate core bus support.
>
> Signed-off-by: Alessandro Rubini <rubini@...dd.com>
> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@...com>
> ---
> arch/x86/Kconfig | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 91dea918..112718f 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -500,6 +500,7 @@ config STA2X11
> select SWIOTLB
> select MFD_STA2X11
> select ARCH_REQUIRE_GPIOLIB
> + select ARM_AMBA
> default n
> ---help---
> This adds support for boards based on the STA2X11 IO-Hub,
> @@ -2173,6 +2174,9 @@ config GEOS
>
> endif # X86_32
>
> +config ARM_AMBA
> + bool
> +
> config AMD_NB
> def_bool y
> depends on CPU_SUP_AMD && PCI
Nacked-by: H. Peter Anvin <hpa@...or.com>
This brings in tons of code into the x86 all{yes,mod}config builds, and
as perhaps one could expect some of it doesn't compile. For example:
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c: In function
‘dmac_alloc_resources’:
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:2056:2: warning:
passing argument 3 of ‘dma_alloc_attrs’ from incompatible
pointer type [enabled by default]
In file included from
/home/hpa/kernel/tip.x86-platform/include/linux/dma-mapping.h:73:0,
from
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:22:
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/dma-mapping.h:130:1:
note: expected ‘dma_addr_t *’ but argument is of typ
e ‘u32 *’
CC sound/pci/au88x0/au8830.o
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:73:0: warning:
"DS" redefined [enabled by default]
In file included from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace.h:5:0,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/vm86.h:130,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/processor.h:10,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/thread_info.h:22,
from
/home/hpa/kernel/tip.x86-platform/include/linux/thread_info.h:54,
from
/home/hpa/kernel/tip.x86-platform/include/linux/preempt.h:9,
from
/home/hpa/kernel/tip.x86-platform/include/linux/spinlock.h:50,
from
/home/hpa/kernel/tip.x86-platform/include/linux/vmalloc.h:4,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/io.h:195,
from
/home/hpa/kernel/tip.x86-platform/include/linux/io.h:22,
from
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:15:
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace-abi.h:13:0: note:
this is the location of the previous definition
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:89:0: warning:
"ES" redefined [enabled by default]
In file included from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace.h:5:0,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/vm86.h:130,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/processor.h:10,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/thread_info.h:22,
from
/home/hpa/kernel/tip.x86-platform/include/linux/thread_info.h:54,
from
/home/hpa/kernel/tip.x86-platform/include/linux/preempt.h:9,
from
/home/hpa/kernel/tip.x86-platform/include/linux/spinlock.h:50,
from
/home/hpa/kernel/tip.x86-platform/include/linux/vmalloc.h:4,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/io.h:195,
from
/home/hpa/kernel/tip.x86-platform/include/linux/io.h:22,
from
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:15:
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace-abi.h:14:0: note:
this is the location of the previous definition
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:100:0: warning:
"CS" redefined [enabled by default]
In file included from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace.h:5:0,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/vm86.h:130,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/processor.h:10,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/thread_info.h:22,
from
/home/hpa/kernel/tip.x86-platform/include/linux/thread_info.h:54,
from
/home/hpa/kernel/tip.x86-platform/include/linux/preempt.h:9,
from
/home/hpa/kernel/tip.x86-platform/include/linux/spinlock.h:50,
from
/home/hpa/kernel/tip.x86-platform/include/linux/vmalloc.h:4,
from
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/io.h:195,
from
/home/hpa/kernel/tip.x86-platform/include/linux/io.h:22,
from
/home/hpa/kernel/tip.x86-platform/drivers/dma/pl330.c:15:
/home/hpa/kernel/tip.x86-platform/arch/x86/include/asm/ptrace-abi.h:19:0: note:
this is the location of the previous definition
CC drivers/dma/pch_dma.o
CC drivers/dma/amba-pl08x.o
/home/hpa/kernel/tip.x86-platform/drivers/dma/amba-pl08x.c:86:32: fatal
error: asm/hardware/pl080.h: No such file or directory
compilation terminated.
make[4]: *** [drivers/dma/amba-pl08x.o] Error 1
make[3]: *** [drivers/dma] Error 2
make[2]: *** [drivers] Error 2
make[2]: *** Waiting for unfinished jobs....
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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