From: "Luck, Tony" <tony.luck@intel.com>
To: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Borislav Petkov <bp@alien8.de>, James Morse <james.morse@arm.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
Robert Richter <rric@kernel.org>,
"Lai Yi" <yi1.lai@linux.intel.com>, <linux-edac@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/7] EDAC/Intel: Make memory controller instances into a flexible array
Date: Tue, 19 Aug 2025 16:33:47 -0700 [thread overview]
Message-ID: <aKUJ261tPZf8gfgr@agluck-desk3> (raw)
In-Reply-To: <20250731145534.2759334-1-qiuxu.zhuo@intel.com>
On Thu, Jul 31, 2025 at 10:55:27PM +0800, Qiuxu Zhuo wrote:
> Problem
> =======
> The current array of memory controller instances for Intel server EDAC
> driver is sized using the macro NUM_IMC. Each time EDAC support is added
> for a new CPU, NUM_IMC needs to be updated to ensure it is greater than
> or equal to the number of memory controllers for the new CPU. This approach
> is inconvenient and also results in memory waste for older CPUs with fewer
> memory controllers.
>
> Solution
> ========
> Make the array of memory controller instances a flexible array and
> determine its size from configuration data or at runtime.
>
> Patches
> =======
> Patch 1~3: Refactor code to be independent of *NUM*_IMC macros.
> Patch 4: Make the array of memory controller instances a flexible array.
> Patch 5~7: Clean up and remove unused *NUM*_IMC macros.
>
> Testing
> =======
> Pass basic testing on Cascade Lake, {Sapphire, Granite} Rapids server CPUs.
> - Load and unload the {skx,i10nm_}edac driver.
> - Receive events for memory correctable errors.
> - Decode memory errors.
>
> This patch series is on top of v6.16.
Applied to edac-drivers branch of RAS tree.
Thanks
-Tony
prev parent reply other threads:[~2025-08-19 23:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-31 14:55 [PATCH 0/7] EDAC/Intel: Make memory controller instances into a flexible array Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 1/7] EDAC/{skx_common,skx}: Use configuration data, not global macros Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 2/7] EDAC/skx_common: Move mc_mapping to be a field inside struct skx_imc Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 3/7] EDAC/skx_common: Swap memory controller index mapping Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 4/7] EDAC/skx_common: Make skx_dev->imc[] a flexible array Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 5/7] EDAC/skx_common: Remove redundant upper bound check for res->imc Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 6/7] EDAC/i10nm: Reallocate skx_dev list if preconfigured cnt != runtime cnt Qiuxu Zhuo
2025-07-31 14:55 ` [PATCH 7/7] EDAC/skx_common: Remove unused *NUM*_IMC macros Qiuxu Zhuo
2025-08-19 23:33 ` Luck, Tony [this message]
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