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[122.58.182.39]) by smtp.gmail.com with ESMTPSA id a5sm22401360pfk.172.2019.11.04.22.57.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 04 Nov 2019 22:57:59 -0800 (PST) Subject: Re: [PATCH RESEND v2 0/2] Convert Atari Falcon IDE driver to platform device To: John Paul Adrian Glaubitz , Geert Uytterhoeven References: <1569470064-3977-1-git-send-email-schmitzmic@gmail.com> <7bd80760-0d46-3b3d-16e7-41cbc9169822@kernel.dk> <6a5e4644-ba7a-079d-d49d-73509bc1cf65@gmail.com> <317f3b1e-20a8-65eb-3a26-3bb79dc22786@physik.fu-berlin.de> Cc: Linux/m68k , linux-ide@vger.kernel.org, Bartlomiej Zolnierkiewicz From: Michael Schmitz Message-ID: <6fb6c69f-ef48-1b35-bbb2-011c12bb02b6@gmail.com> Date: Tue, 5 Nov 2019 19:57:54 +1300 User-Agent: Mozilla/5.0 (X11; Linux ppc; rv:45.0) Gecko/20100101 Icedove/45.4.0 MIME-Version: 1.0 In-Reply-To: <317f3b1e-20a8-65eb-3a26-3bb79dc22786@physik.fu-berlin.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-m68k-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org Adrian, Am 05.11.2019 um 10:42 schrieb John Paul Adrian Glaubitz: > On 11/4/19 10:21 PM, Michael Schmitz wrote: >> fine - that'll be the time when I gladly hand over testing of 030 m68k stuff (at least on Atari) to someone else. >> >> Any takers? > > I'm not sure I understand the reasoning. Does the pata_falcon driver not > work on a real Atari? I honestly don't know. I never tried that. With only 14 MB of RAM, keeping code size to the absolute minimum is quite important to me. Aside from the lack of interrupt support for the Falcon IDE adapter in pata_falcon: I recall some criticism regarding the size of libata a few years back, combined with suggestion to allow libata to be built in a more modular fashion so features not requried to support what is essentially a dumb PIO mode IDE interface could be excluded. Not sure what became of that. I'd have to test both the impact of missing IDE interrupt support, and that of code size when using either the old IDE code or libata at some stage. Having a stable SCSI driver for the Falcon is one of the prerequisites to that. We've just had a lot of fun with some of the m68k SCSI drivers breaking in the 5.x kernel series, so I'd rather leave IDE alone for now, or someone else step in and sort that particular mess out. Cheers, Michael > > Adrian >