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[76.210.143.223]) by smtp.gmail.com with ESMTPSA id 206sm23381385pfv.108.2021.06.30.19.52.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Jun 2021 19:52:51 -0700 (PDT) Date: Wed, 30 Jun 2021 19:52:51 -0700 (PDT) X-Google-Original-Date: Wed, 30 Jun 2021 19:52:49 PDT (-0700) Subject: Re: [PATCH 2/3] riscv: Remove non-standard linux,elfcorehdr handling In-Reply-To: CC: mick@ics.forth.gr, geert@linux-m68k.org, Paul Walmsley , aou@eecs.berkeley.edu, frowand.list@gmail.com, catalin.marinas@arm.com, will@kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org From: Palmer Dabbelt To: robh+dt@kernel.org Message-ID: Mime-Version: 1.0 (MHng) Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 16 Jun 2021 07:47:46 PDT (-0700), robh+dt@kernel.org wrote: > On Wed, Jun 16, 2021 at 4:43 AM Nick Kossifidis wrote: >> >> Στις 2021-06-16 10:56, Geert Uytterhoeven έγραψε: >> > >> > I can't comment on the duplication on arm64, but to me, /chosen >> > sounds like the natural place for both "linux,elfcorehdr" and >> > "linux,usable-memory-range". First rule of DT is "DT describes >> > hardware, not software policy", with /chosen describing some software >> > configuration. >> > >> >> We already have "linux,usable-memory" on /memory node: >> https://elixir.bootlin.com/linux/v5.13-rc6/source/drivers/of/fdt.c#L1011 >> and it makes perfect sense to be there since it overrides /memory's reg >> property. >> >> Why define another binding for the same thing on /chosen ? > > Go look at the thread adding "linux,usable-memory-range". There were > only 35 versions of it[1]. I wasn't happy with a 2nd way either, but > as I've mentioned before we don't always have /memory node. I don't really understand what's going on here, but IIUC what I merged in 5.13 doesn't match the behavior that other architectures have. In that case I'm happy moving RISC-V over to the more standard way of doing things and just calling what we have in 5.13 a screwup. Sorry for the confusion. 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[76.210.143.223]) by smtp.gmail.com with ESMTPSA id 206sm23381385pfv.108.2021.06.30.19.52.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Jun 2021 19:52:51 -0700 (PDT) Date: Wed, 30 Jun 2021 19:52:51 -0700 (PDT) X-Google-Original-Date: Wed, 30 Jun 2021 19:52:49 PDT (-0700) Subject: Re: [PATCH 2/3] riscv: Remove non-standard linux,elfcorehdr handling In-Reply-To: CC: mick@ics.forth.gr, geert@linux-m68k.org, Paul Walmsley , aou@eecs.berkeley.edu, frowand.list@gmail.com, catalin.marinas@arm.com, will@kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org From: Palmer Dabbelt To: robh+dt@kernel.org Message-ID: Mime-Version: 1.0 (MHng) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210630_195254_716572_18AF40B4 X-CRM114-Status: GOOD ( 19.22 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; 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[76.210.143.223]) by smtp.gmail.com with ESMTPSA id 206sm23381385pfv.108.2021.06.30.19.52.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Jun 2021 19:52:51 -0700 (PDT) Date: Wed, 30 Jun 2021 19:52:51 -0700 (PDT) X-Google-Original-Date: Wed, 30 Jun 2021 19:52:49 PDT (-0700) Subject: Re: [PATCH 2/3] riscv: Remove non-standard linux,elfcorehdr handling In-Reply-To: CC: mick@ics.forth.gr, geert@linux-m68k.org, Paul Walmsley , aou@eecs.berkeley.edu, frowand.list@gmail.com, catalin.marinas@arm.com, will@kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org From: Palmer Dabbelt To: robh+dt@kernel.org Message-ID: Mime-Version: 1.0 (MHng) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210630_195254_716385_C8831BB4 X-CRM114-Status: GOOD ( 20.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gV2VkLCAxNiBKdW4gMjAyMSAwNzo0Nzo0NiBQRFQgKC0wNzAwKSwgcm9iaCtkdEBrZXJuZWwu b3JnIHdyb3RlOgo+IE9uIFdlZCwgSnVuIDE2LCAyMDIxIGF0IDQ6NDMgQU0gTmljayBLb3NzaWZp ZGlzIDxtaWNrQGljcy5mb3J0aC5ncj4gd3JvdGU6Cj4+Cj4+IM6jz4TOuc+CIDIwMjEtMDYtMTYg MTA6NTYsIEdlZXJ0IFV5dHRlcmhvZXZlbiDOrc6zz4HOsc+IzrU6Cj4+ID4KPj4gPiBJIGNhbid0 IGNvbW1lbnQgb24gdGhlIGR1cGxpY2F0aW9uIG9uIGFybTY0LCBidXQgdG8gbWUsIC9jaG9zZW4K Pj4gPiBzb3VuZHMgbGlrZSB0aGUgbmF0dXJhbCBwbGFjZSBmb3IgYm90aCAibGludXgsZWxmY29y ZWhkciIgYW5kCj4+ID4gImxpbnV4LHVzYWJsZS1tZW1vcnktcmFuZ2UiLiAgRmlyc3QgcnVsZSBv ZiBEVCBpcyAiRFQgZGVzY3JpYmVzCj4+ID4gaGFyZHdhcmUsIG5vdCBzb2Z0d2FyZSBwb2xpY3ki LCB3aXRoIC9jaG9zZW4gZGVzY3JpYmluZyBzb21lIHNvZnR3YXJlCj4+ID4gY29uZmlndXJhdGlv bi4KPj4gPgo+Pgo+PiBXZSBhbHJlYWR5IGhhdmUgImxpbnV4LHVzYWJsZS1tZW1vcnkiIG9uIC9t ZW1vcnkgbm9kZToKPj4gaHR0cHM6Ly9lbGl4aXIuYm9vdGxpbi5jb20vbGludXgvdjUuMTMtcmM2 L3NvdXJjZS9kcml2ZXJzL29mL2ZkdC5jI0wxMDExCj4+IGFuZCBpdCBtYWtlcyBwZXJmZWN0IHNl bnNlIHRvIGJlIHRoZXJlIHNpbmNlIGl0IG92ZXJyaWRlcyAvbWVtb3J5J3MgcmVnCj4+IHByb3Bl cnR5Lgo+Pgo+PiBXaHkgZGVmaW5lIGFub3RoZXIgYmluZGluZyBmb3IgdGhlIHNhbWUgdGhpbmcg b24gL2Nob3NlbiA/Cj4KPiBHbyBsb29rIGF0IHRoZSB0aHJlYWQgYWRkaW5nICJsaW51eCx1c2Fi bGUtbWVtb3J5LXJhbmdlIi4gVGhlcmUgd2VyZQo+IG9ubHkgMzUgdmVyc2lvbnMgb2YgaXRbMV0u IEkgd2Fzbid0IGhhcHB5IHdpdGggYSAybmQgd2F5IGVpdGhlciwgYnV0Cj4gYXMgSSd2ZSBtZW50 aW9uZWQgYmVmb3JlIHdlIGRvbid0IGFsd2F5cyBoYXZlIC9tZW1vcnkgbm9kZS4KCkkgZG9uJ3Qg cmVhbGx5IHVuZGVyc3RhbmQgd2hhdCdzIGdvaW5nIG9uIGhlcmUsIGJ1dCBJSVVDIHdoYXQgSSBt ZXJnZWQgCmluIDUuMTMgZG9lc24ndCBtYXRjaCB0aGUgYmVoYXZpb3IgdGhhdCBvdGhlciBhcmNo aXRlY3R1cmVzIGhhdmUuICBJbiAKdGhhdCBjYXNlIEknbSBoYXBweSBtb3ZpbmcgUklTQy1WIG92 ZXIgdG8gdGhlIG1vcmUgc3RhbmRhcmQgd2F5IG9mIGRvaW5nIAp0aGluZ3MgYW5kIGp1c3QgY2Fs bGluZyB3aGF0IHdlIGhhdmUgaW4gNS4xMyBhIHNjcmV3dXAuCgpTb3JyeSBmb3IgdGhlIGNvbmZ1 c2lvbi4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFybS1rZXJuZWwK