linux-kernel - Re: [PATCH v2 1/7] EDAC/amd64: Support more than two controllers for chip selects handling

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Message-ID: <af8c4e5e-d1c1-b733-9303-014314aec9d5@amd.com>
Date:   Wed, 10 Jul 2019 16:54:44 +0000
From:   "Phillips, Kim" <kim.phillips@....com>
To:     "Ghannam, Yazen" <Yazen.Ghannam@....com>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bp@...en8.de" <bp@...en8.de>
Subject: Re: [PATCH v2 1/7] EDAC/amd64: Support more than two controllers for
 chip selects handling

On 7/9/19 4:56 PM, Ghannam, Yazen wrote:
> From: Yazen Ghannam <yazen.ghannam@....com>
> 
> The struct chip_select array that's used for saving chip select bases
> and masks is fixed at length of two. There should be one struct
> chip_select for each controller, so this array should be increased to
> support systems that may have more than two controllers.
> 
> Increase the size of the struct chip_select array to eight, which is the
> largest number of controllers per die currently supported on AMD
> systems.
> 
> Fix number of DIMMs and Chip Select bases/masks on Family17h, because AMD
> Family 17h systems support 2 DIMMs, 4 CS bases, and 2 CS masks per
> channel.
> 
> Also, carve out the Family 17h+ reading of the bases/masks into a
> separate function. This effectively reverts the original bases/masks
> reading code to before Family 17h support was added.
> 
> This is a second version of a commit that was reverted.
> 
> Fixes: 07ed82ef93d6 ("EDAC, amd64: Add Fam17h debug output")
> Fixes: 8de9930a4618 ("Revert "EDAC/amd64: Support more than two controllers for chip select handling"")
> Signed-off-by: Yazen Ghannam <yazen.ghannam@....com>
> ---

For this and the rest of the series:

Tested-by: Kim Phillips <kim.phillips@....com>

Thanks,

Kim