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Old 03-17-2010, 08:37 AM
Stefan Bader
 
Default enable MMIOTRACE for graphics debugging

It seems at least worth trying as everything that helps to debug is good as long
as it does not impact normal usage.

Andy Whitcroft wrote:
> Enable MMIOTRACE to allow us to trace low level card operations. This is
> commonly used to debug graphics issues particularly under Nouveau.
> According to the documentation it is a near zero impact when disabled.
>
> Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
> ---
> debian.master/config/config.common.ubuntu | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu
> index 0bca70a..989c14c 100644
> --- a/debian.master/config/config.common.ubuntu
> +++ b/debian.master/config/config.common.ubuntu
> @@ -2236,7 +2236,8 @@ CONFIG_MMC_TIFM_SD=m
> # CONFIG_MMC_UNSAFE_RESUME is not set
> CONFIG_MMC_VIA_SDMMC=m
> CONFIG_MMC_WBSD=m
> -# CONFIG_MMIOTRACE is not set
> +CONFIG_MMIOTRACE=y
> +# CONFIG_MMIOTRACE_TEST is not set
> CONFIG_MMU=y
> CONFIG_MMU_NOTIFIER=y
> CONFIG_MM_OWNER=y


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Old 03-17-2010, 09:00 AM
Colin Ian King
 
Default enable MMIOTRACE for graphics debugging

The benefit as a debugging tool makes this a very good option to turn
on. It appears to add minimal overhead when not being used in debug
mode, so I'm for this.

On Wed, 2010-03-17 at 09:26 +0000, Andy Whitcroft wrote:
> Enable MMIOTRACE to allow us to trace low level card operations. This is
> commonly used to debug graphics issues particularly under Nouveau.
> According to the documentation it is a near zero impact when disabled.
>
> Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>

> ---
> debian.master/config/config.common.ubuntu | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu
> index 0bca70a..989c14c 100644
> --- a/debian.master/config/config.common.ubuntu
> +++ b/debian.master/config/config.common.ubuntu
> @@ -2236,7 +2236,8 @@ CONFIG_MMC_TIFM_SD=m
> # CONFIG_MMC_UNSAFE_RESUME is not set
> CONFIG_MMC_VIA_SDMMC=m
> CONFIG_MMC_WBSD=m
> -# CONFIG_MMIOTRACE is not set
> +CONFIG_MMIOTRACE=y
> +# CONFIG_MMIOTRACE_TEST is not set
> CONFIG_MMU=y
> CONFIG_MMU_NOTIFIER=y
> CONFIG_MM_OWNER=y
> --
> 1.7.0
>
>



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