Re: [Linux-nvdimm] [PATCH 05/21] nfit-test: manufactured NFITs for interface development
From: Linda Knippers
Date: Fri Apr 24 2015 - 17:47:59 EST
On 4/17/2015 9:35 PM, Dan Williams wrote:
> diff --git a/drivers/block/nd/Kconfig b/drivers/block/nd/Kconfig
> index 5fa74f124b3e..0106b3807202 100644
> --- a/drivers/block/nd/Kconfig
> +++ b/drivers/block/nd/Kconfig
> @@ -41,4 +41,24 @@ config NFIT_ACPI
> register the platform-global NFIT blob with the core. Also
> enables the core to craft ACPI._DSM messages for platform/dimm
> +config NFIT_TEST
> + tristate "NFIT TEST: Manufactured NFIT for interface testing"
> + depends on DMA_CMA
> + depends on ND_CORE=m
> + depends on m
> + help
> + For development purposes register a manufactured
> + NFIT table to verify the resulting device model topology.
> + Note, this module arranges for ioremap_cache() to be
> + overridden locally to allow simulation of system-memory as an
> + io-memory-resource.
> + Note, this test expects to be able to find at least
> + 256MB of CMA space (CONFIG_CMA_SIZE_MBYTES) or it will fail to
It seems to actually be wanting >= 584MB.
> + load. Kconfig does not allow for numerical value
> + dependencies, so we can only warn at runtime.
> + Say N unless you are doing development of the 'nd' subsystem.
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