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Sat, 17 Sep 2022 10:08:03 +0100 Date: Sat, 17 Sep 2022 10:05:59 +0100 Message-ID: <87r10al6a0.wl-maz@kernel.org> From: Marc Zyngier To: Lorenzo Pieralisi Cc: Marek =?UTF-8?B?QmVow7pu?= , Lorenzo Pieralisi , Bjorn Helgaas , Krzysztof =?UTF-8?B?V2lsY3p5xYRza2k=?= , pali@kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tglx@linutronix.de Subject: Re: [PATCH 03/11] PCI: aardvark: Add support for DLLSC and hotplug interrupt In-Reply-To: References: <20220818135140.5996-1-kabel@kernel.org> <20220818135140.5996-4-kabel@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.176.101.241 X-SA-Exim-Rcpt-To: lpieralisi@kernel.org, kabel@kernel.org, lorenzo.pieralisi@arm.com, helgaas@kernel.org, kw@linux.com, pali@kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tglx@linutronix.de X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220917_020810_248860_E01A4A32 X-CRM114-Status: GOOD ( 33.99 ) 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-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgTG9yZW56bywKCk9uIEZyaSwgMDkgU2VwIDIwMjIgMTU6NTc6MTEgKzAxMDAsCkxvcmVuem8g UGllcmFsaXNpIDxscGllcmFsaXNpQGtlcm5lbC5vcmc+IHdyb3RlOgo+IAo+IFsrTWFyYywgVGhv bWFzIC0gSSBjYW4ndCBtZXJnZSB0aGlzIGNvZGUgd2l0aG91dCB0aGVtIHJldmlld2luZyBpdCwK PiBJIGFtIG5vdCBzdXJlIGF0IGFsbCB5b3UgY2FuIG1peCB0aGUgdGltZXIvSVJRIGNvZGUgdGhl IHdheSB5b3UgZG9dCj4gCj4gT24gVGh1LCBBdWcgMTgsIDIwMjIgYXQgMDM6NTE6MzJQTSArMDIw MCwgTWFyZWsgQmVow7puIHdyb3RlOgo+ID4gRnJvbTogUGFsaSBSb2jDoXIgPHBhbGlAa2VybmVs Lm9yZz4KPiA+IAo+ID4gQWRkIHN1cHBvcnQgZm9yIERhdGEgTGluayBMYXllciBTdGF0ZSBDaGFu Z2UgaW4gdGhlIGVtdWxhdGVkIHNsb3QKPiA+IHJlZ2lzdGVycyBhbmQgaG90cGx1ZyBpbnRlcnJ1 cHQgdmlhIHRoZSBlbXVsYXRlZCByb290IGJyaWRnZS4KPiA+IAo+ID4gVGhpcyBpcyBtYWlubHkg dXNlZnVsIGZvciB3aGVuIGFuIGVycm9yIGNhdXNlcyBsaW5rIGRvd24gZXZlbnQuIFdpdGgKPiA+ IHRoaXMgY2hhbmdlLCBkcml2ZXJzIGNhbiB0cnkgcmVjb3ZlcnkuCj4gPiAKPiA+IExpbmsgZG93 biBzdGF0ZSBjaGFuZ2UgY2FuIGJlIGltcGxlbWVudGVkIGJlY2F1c2UgQWFyZHZhcmsgc3VwcG9y dHMgTGluawo+ID4gRG93biBldmVudCBpbnRlcnJ1cHQuIFVzZSBpdCBmb3Igc2lnbmFsaW5nIHRo YXQgRGF0YSBMaW5rIExheWVyIExpbmsgaXMKPiA+IG5vdCBhY3RpdmUgYW55bW9yZSB2aWEgSG90 LVBsdWcgSW50ZXJydXB0IG9uIGVtdWxhdGVkIHJvb3QgYnJpZGdlLgo+ID4gCj4gPiBMaW5rIHVw IGludGVycnVwdCBpcyBub3QgYXZhaWxhYmxlIG9uIEFhcmR2YXJrLCBidXQgd2UgY2hlY2sgZm9y IHdoZXRoZXIKPiA+IGxpbmsgaXMgdXAgaW4gdGhlIGFkdmtfcGNpZV9saW5rX3VwKCkgZnVuY3Rp b24uIEJ5IHRyaWdnZXJpbmcgSG90LVBsdWcKPiA+IEludGVycnVwdCBmcm9tIHRoaXMgZnVuY3Rp b24gd2UgYWNoaWV2ZSBMaW5rIHVwIGV2ZW50LCBzbyBsb25nIGFzIHRoZQo+ID4gZnVuY3Rpb24g aXMgY2FsbGVkICh3aGljaCBpdCBpcyBhZnRlciBwcm9iZSBhbmQgd2hlbiByZXNjYW5uaW5nKS4K PiA+IEFsdGhvdWdoIGl0IGlzIG5vdCBpZGVhbCwgaXQgaXMgYmV0dGVyIHRoYW4gbm90aGluZy4K PiAKPiBTbyBiZWZvcmUgZXZlbiBjb21pbmcgdG8gdGhlIGNvZGUgcmV2aWV3OiB0aGlzIHBhdGNo IGRvZXMgdHdvIHRoaW5ncy4KPiAKPiAxKSBJdCBhZGRzIHN1cHBvcnQgZm9yIGhhbmRsaW5nIHRo ZSBMaW5rIGRvd24gc3RhdGUKPiAyKSBJdCBhZGRzIHNvbWUgY29kZSB0byBlbXVsYXRlIGEgTGlu ay11cCBldmVudAo+IAo+IE5vdywgZm9yICgyKS4gSUlVQyB5b3UgYXJlIGFkZGluZyBjb2RlIHRv IG1ha2Ugc3VyZSB0aGF0IGFuIEhQCj4gZXZlbnQgaXMgdHJpZ2dlcmVkIGlmIGFkdmtfcGNpZV9s aW5rX3VwKCkgaXMgY2FsbGVkIGFuZCBpdAo+IGRldGVjdHMgYSBMaW5rLWRvd24tPkxpbmstdXAg dHJhbnNpdGlvbiwgdGhhdCBoYXMgdG8gYmUgbm90aWZpZWQKPiB0aHJvdWdoIGFuIEhQIGV2ZW50 Lgo+IAo+IElmIHRoYXQncyBjb3JyZWN0LCB5b3UgaGF2ZSB0byBleHBsYWluIHRvIG1lIHBsZWFz ZSB3aGF0IHRoaXMgaXMKPiBhY3R1YWxseSBhY2hpZXZpbmcgYW5kIGEgc3BlY2lmaWMgc2NlbmFy aW8gd2hlcmUgd2Ugd2FudCB0aGlzIHRvIGJlCj4gaW1wbGVtZW50ZWQsIGluIGZpbmUgZGV0YWls czsgdGhlbiB3ZSBhZGQgaXQgdG8gdGhlIGNvbW1pdCBsb2cuCj4gCj4gVGhhdCBhc2lkZSwgdGhl IGludGVyYWN0aW9uIG9mIHRoZSB0aW1lciBhbmQgdGhlIElSUSBkb21haW4gY29kZQo+IG11c3Qg YmUgcmV2aWV3ZWQgYnkgTWFyYyBhbmQgVGhvbWFzIHRvIG1ha2Ugc3VyZSB0aGlzIGlzIG5vdAo+ IGEgZ3Jvc3MgdmlvbGF0aW9uIG9mIHRoZSByZXNwZWN0aXZlIHN1YnN5c3RlbXMgdXNhZ2UuCgpJ IGRvbid0IHNlZSBhbnl0aGluZyBiZWluZyBhICJncm9zcyB2aW9sYXRpb24iIGhlcmUsIGF0IGxl YXN0IGZyb20gYW4KaW50ZXJydXB0IHN1YnN5c3RlbSBwZXJzcGVjdGl2ZS4gSW4gYSB3YXksIHRo aXMgaXMgc3ludGhlc2lzaW5nIGFuCmludGVycnVwdCBvbiB0aGUgYmFjayBvZiBzb21lIG90aGVy IGV2ZW50LCBhbmQgYXMgbG9uZyBhcyB0aGUgY29udGV4dAppcyBzb21laG93IGFwcHJvcHJpYXRl IChzb21ldGhpbmcgdGhhdCBsb29rcyBsaWtlIGFuIGludGVycnVwdCB3aGVuCnByZXRlbmRpbmcg dGhlcmUgaXMgb25lKSwgdGhpcyBzaG91bGQgYmUgT0suIE90aGVyIHN1YnN5c3RlbXMgc3VjaCBh cwppMmMgR1BJTyBleHBhbmRlcnMgZG8gc2ltaWxhciB0aGluZ3MuCgpUaGUgb25lIHRoaW5nIEkn bSBkdWJpb3VzIGFib3V0IGlzIHRoZSBmcmVxdWVuY3kgb2YgdGhlIHRpbWVyLiBBc2tpbmcKZm9y IGEgcG9sbCBvZiB0aGUgbGluayBldmVyeSBqaWZmeSBpcyBib3VuZCB0byBiZSBleHBlbnNpdmUs IGFuZCBpdAp3b3VsZCBiZSBnb29kIHRvIHJlbGF4IHRoaXMgYXMgbXVjaCBhcyBwb3NzaWJsZSwg c3BlY2lhbGx5IG9uIGxvdy1lbmQKSFcgc3VjaCBhcyB0aGlzLCB3aGVyZSBldmVyeSBjeWNsZSBj b3VudHMuIEl0IGlzIGFsd2F5cyBnb2luZyB0byBiZSBhCiJiZXN0IGVmZm9ydCIgdGhpbmcsIGFu ZCB0aGUgY29tbWl0IG1lc3NhZ2UgZG9lc24ndCBzYXkgd2hhdCdzIHRoZQphY3R1YWwgZ3JhY2Ug cGVyaW9kIHRvIGhhbmRsZSB0aGlzICh0aGUgc3BlYyBwcm9iYWJseSBoYXMgb25lKS4KCkkgZ3Vl c3MgdGhpcyBwYXRjaCBjb3VsZCBkbyB3aXRoIGJlaW5nIHNwbGl0IGJldHdlZW4gaGFuZGxpbmcg bGluawpkb3duIGFuZCBsaW5rIHVwIGV2ZW50cywgYnV0IHRoYXQncyBmb3IgeW91IHRvIGRlY2lk ZS4KClRoYW5rcywKCglNLgoKLS0gCldpdGhvdXQgZGV2aWF0aW9uIGZyb20gdGhlIG5vcm0sIHBy b2dyZXNzIGlzIG5vdCBwb3NzaWJsZS4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1r ZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWls bWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK