From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Message-ID: <1492044780.7236.87.camel@kernel.crashing.org> Subject: Re: [PATCH v3 00/32] PCI: fix config and I/O Address space memory mappings From: Benjamin Herrenschmidt To: Russell King - ARM Linux Date: Thu, 13 Apr 2017 10:53:00 +1000 In-Reply-To: <20170412224555.GB17774@n2100.armlinux.org.uk> References: <20170411122923.6285-1-lorenzo.pieralisi@arm.com> <1491917906.7236.7.camel@kernel.crashing.org> <20170411140857.GA6821@red-moon> <1491952371.7236.22.camel@kernel.crashing.org> <20170412113124.GZ17774@n2100.armlinux.org.uk> <1492005119.7236.62.camel@kernel.crashing.org> <20170412141654.GA17774@n2100.armlinux.org.uk> <20170412144109.GB6842@red-moon> <1492036240.7236.80.camel@kernel.crashing.org> <20170412224555.GB17774@n2100.armlinux.org.uk> Mime-Version: 1.0 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jonas Bonn , Rich Felker , linux-pci@vger.kernel.org, Will Deacon , David Howells , Max Filippov , Paul Mackerras , Huacai Chen , Guan Xuetao , Thomas Gleixner , Hans-Christian Egtvedt , linux-arch@vger.kernel.org, Jesper Nilsson , Lorenzo Pieralisi , Yoshinori Sato , Michael Ellerman , Helge Deller , "James E.J. Bottomley" , Ingo Molnar , Geert Uytterhoeven , Catalin Marinas , Matt Turner , Haavard Skinnemoen , Fenghua Yu , James Hogan , Chris Metcalf , Arnd Bergmann , Heiko Carstens , Stefan Kristiansson , Mikael Starvik , Ivan Kokshaysky , Bjorn Helgaas , Stafford Horne , linux-arm-kernel@lists.infradead.org, Richard Henderson , Chris Zankel , Michal Simek , Tony Luck , Vineet Gupta , linux-kernel@vger.kernel.org, Ralf Baechle , Richard Kuo , Niklas Cassel , "Luis R. Rodriguez" , Martin Schwidefsky , Ley Foon Tan , "David S. Miller" Content-Type: text/plain; charset="utf-8" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+bjorn=helgaas.com@lists.infradead.org List-ID: T24gV2VkLCAyMDE3LTA0LTEyIGF0IDIzOjQ1ICswMTAwLCBSdXNzZWxsIEtpbmcgLSBBUk0gTGlu dXggd3JvdGU6Cj4gT24gVGh1LCBBcHIgMTMsIDIwMTcgYXQgMDg6MzA6NDBBTSArMTAwMCwgQmVu amFtaW4gSGVycmVuc2NobWlkdCB3cm90ZToKPiA+IE15IHBvaW50IHdpdGggbm9wb3N0KCkgaXMg dGhhdCBpdCdzIG5ldmVyIG9rIHRvIHNpbGVudGx5IGRvd25ncmFkZSBpdC4KPiA+IENvZGUgd3Jp dHRlbiB3aXRoIHRoZSBhc3N1bXB0aW9uIHRoYXQgdGhlcmUgaXMgbm8gcG9zdGluZyB3aWxsIGJl Cj4gPiAqaW5jb3JyZWN0KiBpZiBwb3N0aW5nIGhhcHBlbnMuIFdlIGRvIGxpdmUgd2l0aCB0aGF0 ICJidWciIHRvZGF5IGluZGVlZAo+ID4gYnV0IG9uY2Ugd2UgaGF2ZSB0aGF0IGFjY2Vzc29ycyB3 ZSBtaWdodCBzdGFydCBncm93aW5nIG1vcmUgY29kZSB0aGF0Cj4gPiByZWxpZXMgb24gdGhlIHNw ZWNpZmljIGF0dHJpYnV0ZSB0aGF0IHRoaW5ncyBhcmVuJ3QgcG9zdGVkIGFuZCB3aWxsIGJlCj4g PiB3cm9uZyBvbiBhbGwgdGhlIGFyY2hzIHByb3ZpZGluZyB0aGUgZGVmYXVsdCBpbXBsZW1lbnRh dGlvbi4KPiA+IAo+ID4gVGhpcyBpcyB3aHkgSSBpbnNpc3QgdGhhdCBwZ3Byb3Rfbm9wb3N0KCkg aWYgaXQgZXhpc3RzIGdsb2JhbGx5LCBzaG91bGQKPiA+IHJldHVybiBOVUxMIHdoZW4gdGhlIHNl bWFudGljIGNhbm5vdCBiZSBwcm92aWRlZC4KPiAKPiBOb3cgeW91J3JlIG5vdCB0YWxraW5nIHNl bnNlLsKgwqBwZ3Byb3Rfbm9wb3N0KCkgZG9lcyBfbm90XyByZXR1cm4gYSBwb2ludGVyLgo+IFlv dSdyZSB0YWxraW5nIGhlcmUgYXMgaWYgeW91J3JlIHN0aWxsIHRhbGtpbmcgYWJvdXQgaW9yZW1h cF9ub3Bvc3QoKS4KPiBTbywgSSB0aGluayB5b3UncmUgY29uZnVzZWQuCgpOYWgsIGp1c3QgInR5 cG8iLCBJIG1lYW50IGlvcmVtYXBfbm9wb3N0LgoKPiA+ID4gPiBKdXN0IGxpa2UgdGhlIHByb3Bv c2VkIGlvcmVtYXBfbm9wb3N0KCksIHBncHJvdF9ub25wb3N0ZWQoKSBpcyBnaXZlbiBhCj4gPiA+ ID4gZGVmYXVsdCBpbXBsZW1lbnRhdGlvbiB0aGF0IHVzZXMgcGdwcm90X25vbmNhY2hlZCgpLsKg IE1heWJlIHdlIHNob3VsZAo+ID4gPiA+IGFsc28gbWFrZSBwY2lfcmVtYXBfaW9zcGFjZSgpIGZh aWwgaWYgcGdwcm90X25vbnBvc3RlZCgpIGlzIG5vdCBkZWZpbmVkCj4gPiA+ID4gYnkgdGhlIGFy Y2hpdGVjdHVyZT8KPiA+IAo+ID4gT3Igd2UgKmRvY3VtZW50KiB0aGF0IG1tYXAgb2YgSU8gc3Bh Y2UgY2FuIHJlc3VsdCBpbiBzb21ldGhpbmcgdGhhdCBpcwo+ID4gcGFydGlhbGx5IG5vbi1wb3N0 ZWQuCj4gCj4gT2gsIHNvIHdlIF9jYW5fIHByb3ZpZGUgYW4gaW50ZXJmYWNlIHRoYXQgaGFzIHdl YWtlciBzZW1hbnRpY3MgdGhhbiBpdAo+IHNob3VsZCBwcm92aWRlZCB3ZSBkb2N1bWVudCBpdC4K PiAKPiBJdCdzIGluc2FuZSB0byBoYXZlIGRpZmZlcmVudCBiZWhhdmlvdXJzIGZyb20gdGhlc2Ug dHdvIGludGVyZmFjZXMsIHlldAo+IHlvdSBzZWVtIHRvIGhhdmUgc2FpZCBleGFjdGx5IHRoYXQg aW4geW91ciByZXBseS4KPgo+IEl0J3MgYWN0dWFsbHkgd29yc2UgdGhhbiB0aGF0IC0gd2hhdCB5 b3UndmUganVzdCBzYWlkIGlzIHRoYXQgaXQncyBva2F5Cj4gZm9yIHVzZXJzcGFjZSB0byBtYXAg SU8gc3BhY2Ugd2l0aCB3ZWFrZXIgc2VtYW50aWNzIHRoYW4gdGhlIFBDSQo+IHNwZWNpZmljYXRp b24gc3RhdGVzLCBidXQgaXQncyBub3Qgb2theSBmb3Iga2VybmVsIHNwYWNlIHRvIGRvIHRoYXQu CgpUaGF0IGlzIG5vdCB3aGF0IEknbSBzYXlpbmcuIFdoYXQgSSdtIHNheWluZyBpcyB0aGF0IGl0 J3Mgbm90IG9rIHRvCnByb3ZpZGUgYSBnZW5lcmljIG1hcHBpbmcgYXR0cmlidXRlIHRoYXQgc2ls ZW50bHkgaGFwcGVucyB0byBiZSB3ZWFrZXIKdGhhbiBkb2N1bWVudGVkIG9uIHNvbWUgYXJjaGl0 ZWN0dXJlcy4KClRoZSBQQ0kgcGFydCBpcyBvcnRob2dvbmFsLiBIb3cgZG8geW91IGhhbmRsZSBQ Q0kgaW4gYWJzZW5jZSBvZiB0aGF0CmF0dHJpYnV0ZSBpcyBhIHNlcGFyYXRlIHByb2JsZW0gKHdo aWNoIGlzIHByb2JhYmx5IGEgbWF0dGVyIG9mIGp1c3QKZG9jdW1lbnRpbmcgdGhpbmdzKS4KCkJU Vy4gSXMgY29uZmlnIHNwYWNlIGFsc28gbm9uLXBvc3RlZCBvbiBJbnRlbCB3aXRoIG1tY29uZmln ID8gSSBkaWRuJ3QKdGhpbmsgdGhleSBjb3VsZCBkbyBub24gcG9zdGVkIE1NSU8gc3RvcmVzLCBi dXQgbWF5YmUgSSdtIHdyb25nLgoKPiBFc3BlY2lhbGx5IGFzIHVzZXJzcGFjZSBjYW4ndCBrbm93 IHdoYXQgc2VtYW50aWNzIGl0cyBnb2luZyB0byBlbmQgdXAKPiB3aXRoLCB0aGlzIHNlZW1zIHRv IGJlIGEgdmVyeSBzdHJhbmdlIHN0YW5jZSB0byB0YWtlLgoKVGhhdCdzIHdoeSB3ZSBkb2N1bWVu dCB0aGF0IHRoZSB1c2Vyc3BhY2UgaW50ZXJmYWNlIGZvciAqUENJKiBpcwpyZWxheGVkLgoKPiBJ J2Qgc2F5IHRoYXQgaWYgd2UgY2FuJ3Qgb2ZmZXIgdGhlIG5vLXBvc3RpbmcgYmVoYXZpb3VyIHRo YXQgUENJCj4gc3BlY2lmaWVzLCB0aGVuIHdlIHNob3VsZG4ndCBiZSBleHBvc2luZyBJTyBtYXBw aW5ncyB0byB1c2Vyc3BhY2UuCgpJIHN0cm9uZ2x5IGRpc2FncmVlLiBXZSd2ZSBiZWVuIGRvaW5n IGl0IGZvciBkZWNhZGVzIGFuZCBpdCB3b3JrcwpmaW5lIGluIHByZXR0eSBtdWNoIGFsbCBjYXNl cy4KCk5vdGUgYWxzbyB0aGF0IHNvbWUgcGxhdGZvcm1zIChpbmNsdWRpbmcgc29tZSBwb3dlcnBj IGFmYWlrKSBkbyBwcm92aWRlCnRoZSBub24tcG9zdGVkIGJlaGF2aW91ciwgc2ltcGx5IG5vdCBh cyBhIG1hcHBpbmcgYXR0cmlidXRlLiBJbnRlcm5hbApmYWJyaWNzIGFyZW4ndCBuZWNlc3Nhcmls eSBkb2luZyBwb3N0ZWQgd3JpdGVzIGFuZCBzb21lIGJyaWRnZXMgd2lsbApob2xkIHRoZSByZXNw b25zZSBmb3Igbm9uLXBvc3RlZCByZXF1ZXN0cy4KCkFueXdheSwgSSBkb24ndCBvYmplY3QgdG8g dHJ5aW5nIHRvIGltcHJvdmUgY29tcGxpYW5jZSB3aXRoIHRoZSBzcGVjCm9uIGFyY2ggdGhhdCBo YXZlIHN1Y2ggYSBtYXBwaW5nIGF0dHJpYnV0ZS4gQnV0IEkgZG8gb2JqZWN0IHRvIGhhdmluZwph IGdlbmVyaWMgbWFwcGluZyBhdHRyaWJ1dGUgKHRoYXQgaXNuJ3QgZnVuZGFtZW50YWxseSBhIFBD SSB0aGluZykgdGhhdApzaWxlbnRseSBkb3duZ3JhZGVzIHRvIHNvbWV0aGluZyB3ZWFrZXIuCgpC ZW4uCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlu dXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRl YWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgt YXJtLWtlcm5lbAo=