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From: Borislav Petkov <bp@alien8.de>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Michal Simek <michal.simek@xilinx.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Tony Luck <tony.luck@intel.com>,
	James Morse <james.morse@arm.com>,
	Robert Richter <rric@kernel.org>,
	Serge Semin <fancer.lancer@gmail.com>,
	Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
	Michail Ivanov <Michail.Ivanov@baikalelectronics.ru>,
	Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
	Punnaiah Choudary Kalluri  <punnaiah.choudary.kalluri@xilinx.com>,
	Manish Narani <manish.narani@xilinx.com>,
	Dinh Nguyen <dinguyen@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND v3 14/17] EDAC/synopsys: Detach Zynq DDRC controller support
Date: Fri, 30 Sep 2022 16:42:31 +0200	[thread overview]
Message-ID: <YzcAV2I/rhILfhwR@zn.tnic> (raw)
In-Reply-To: <20220929232712.12202-15-Sergey.Semin@baikalelectronics.ru>

On Fri, Sep 30, 2022 at 02:27:09AM +0300, Serge Semin wrote:
> It was a bad idea in the first place to combine two absolutely different
> controllers support in a single driver [1]. It caused having an additional
> level of abstraction, which obviously have needlessly overcomplicated the
> driver and as such caused many problems in the new main controller
> features support implementation. The solution looks even more unreasonable
> now seeing the justification of having both controllers support in a
> single driver hasn't been implemented by the original code author [2].

Yeah, no, you need to give more concrete details here.

Why exactly is this a problem?

Are you saying that if synopsys puts out 10 incompatible memory
controllers, we should have 10 separate EDAC drivers?

Hell no.

synopsys_edac.c is not a huge file and the probe logic which matches
which synps_platform_data to load is pretty straight-forward to me.

But maybe I'm missing something so please explain in detail what the
actual problems with this are?

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Michal Simek <michal.simek@xilinx.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Tony Luck <tony.luck@intel.com>,
	James Morse <james.morse@arm.com>,
	Robert Richter <rric@kernel.org>,
	Serge Semin <fancer.lancer@gmail.com>,
	Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
	Michail Ivanov <Michail.Ivanov@baikalelectronics.ru>,
	Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
	Punnaiah Choudary Kalluri <punnaiah.choudary.kalluri@xilinx.com>,
	Manish Narani <manish.narani@xilinx.com>,
	Dinh Nguyen <dinguyen@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND v3 14/17] EDAC/synopsys: Detach Zynq DDRC controller support
Date: Fri, 30 Sep 2022 16:42:31 +0200	[thread overview]
Message-ID: <YzcAV2I/rhILfhwR@zn.tnic> (raw)
In-Reply-To: <20220929232712.12202-15-Sergey.Semin@baikalelectronics.ru>

On Fri, Sep 30, 2022 at 02:27:09AM +0300, Serge Semin wrote:
> It was a bad idea in the first place to combine two absolutely different
> controllers support in a single driver [1]. It caused having an additional
> level of abstraction, which obviously have needlessly overcomplicated the
> driver and as such caused many problems in the new main controller
> features support implementation. The solution looks even more unreasonable
> now seeing the justification of having both controllers support in a
> single driver hasn't been implemented by the original code author [2].

Yeah, no, you need to give more concrete details here.

Why exactly is this a problem?

Are you saying that if synopsys puts out 10 incompatible memory
controllers, we should have 10 separate EDAC drivers?

Hell no.

synopsys_edac.c is not a huge file and the probe logic which matches
which synps_platform_data to load is pretty straight-forward to me.

But maybe I'm missing something so please explain in detail what the
actual problems with this are?

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-09-30 14:42 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-29 23:26 [PATCH RESEND v3 00/17] EDAC/mc/synopsys: Various fixes and cleanups Serge Semin
2022-09-29 23:26 ` Serge Semin
2022-09-29 23:26 ` [PATCH RESEND v3 01/17] EDAC/synopsys: Fix native uMCTL2 IRQs handling procedure Serge Semin
2022-09-29 23:26   ` Serge Semin
2022-10-31 17:24   ` Borislav Petkov
2022-10-31 17:24     ` Borislav Petkov
2023-09-01 11:24     ` Serge Semin
2023-09-01 11:24       ` Serge Semin
2022-09-29 23:26 ` [PATCH RESEND v3 02/17] EDAC/synopsys: Fix generic device type detection procedure Serge Semin
2022-09-29 23:26   ` Serge Semin
2022-09-29 23:26 ` [PATCH RESEND v3 03/17] EDAC/synopsys: Fix mci->scrub_cap field setting Serge Semin
2022-09-29 23:26   ` Serge Semin
2022-09-29 23:26 ` [PATCH RESEND v3 04/17] EDAC/synopsys: Drop erroneous ADDRMAP4.addrmap_col_b10 parse Serge Semin
2022-09-29 23:26   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 05/17] EDAC/synopsys: Fix reading errors count before ECC status Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 06/17] EDAC/synopsys: Use platform device devm ioremap method Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 07/17] EDAC/synopsys: Drop internal CE and UE counters Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 08/17] EDAC/synopsys: Drop local to_mci macro implementation Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 09/17] EDAC/synopsys: Drop struct ecc_error_info.blknr field Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 10/17] EDAC/synopsys: Shorten out struct ecc_error_info.bankgrpnr field name Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 11/17] EDAC/synopsys: Drop redundant info from error message Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 12/17] EDAC/mc: Init DIMM labels in MC registration method Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 13/17] EDAC/mc: Add MC unique index allocation procedure Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-10-12 17:29   ` Borislav Petkov
2022-10-12 17:29     ` Borislav Petkov
2022-10-12 20:01     ` Serge Semin
2022-10-12 20:01       ` Serge Semin
2022-10-12 20:33       ` Borislav Petkov
2022-10-12 20:33         ` Borislav Petkov
2022-10-12 20:44         ` Tony Luck
2022-10-12 20:44           ` Tony Luck
2022-10-12 21:31           ` Serge Semin
2022-10-12 21:31             ` Serge Semin
2022-10-12 22:30         ` Serge Semin
2022-10-12 22:30           ` Serge Semin
2022-10-13  9:38           ` Borislav Petkov
2022-10-13  9:38             ` Borislav Petkov
2022-09-29 23:27 ` [PATCH RESEND v3 14/17] EDAC/synopsys: Detach Zynq DDRC controller support Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-30 14:42   ` Borislav Petkov [this message]
2022-09-30 14:42     ` Borislav Petkov
2022-10-06 12:17     ` Serge Semin
2022-10-06 12:17       ` Serge Semin
2022-10-06 13:25       ` Borislav Petkov
2022-10-06 13:25         ` Borislav Petkov
2022-10-08  0:42         ` Serge Semin
2022-10-08  0:42           ` Serge Semin
2022-10-12 17:28           ` Borislav Petkov
2022-10-12 17:28             ` Borislav Petkov
2022-10-12 19:27             ` Serge Semin
2022-10-12 19:27               ` Serge Semin
2022-10-12 19:44               ` Borislav Petkov
2022-10-12 19:44                 ` Borislav Petkov
2022-10-12 20:55                 ` Serge Semin
2022-10-12 20:55                   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 15/17] EDAC/synopsys: Drop unused platform-specific setup API Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 16/17] EDAC/synopsys: Unify the driver entities naming Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-29 23:27 ` [PATCH RESEND v3 17/17] EDAC/synopsys: Convert to using BIT/GENMASK/FIELD_x macros Serge Semin
2022-09-29 23:27   ` Serge Semin
2022-09-30 14:29 ` [PATCH RESEND v3 00/17] EDAC/mc/synopsys: Various fixes and cleanups Borislav Petkov
2022-09-30 14:29   ` Borislav Petkov
2022-10-06  7:13   ` Michal Simek
2022-10-06  7:13     ` Michal Simek
2023-08-18 23:06 ` Serge Semin
2023-08-18 23:06   ` Serge Semin

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