From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kishon Vijay Abraham I Subject: Re: [PATCH 02/10] PCI: designware-ep: Add the doorbell mode of MSI-X in EP mode Date: Fri, 16 Aug 2019 16:19:37 +0530 Message-ID: <02cf2f3d-336c-85bb-1fb5-a141c5a9cf79@ti.com> References: <20190815083716.4715-1-xiaowei.bao@nxp.com> <20190815083716.4715-2-xiaowei.bao@nxp.com> <20190815115340.GG43882@e119886-lin.cambridge.arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="gbk" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Xiaowei Bao , Andrew Murray Cc: "mark.rutland@arm.com" , "devicetree@vger.kernel.org" , "lorenzo.pieralisi@arm.com" , "arnd@arndb.de" , "gregkh@linuxfoundation.org" , "jingoohan1@gmail.com" , "Z.q. Hou" , "linuxppc-dev@lists.ozlabs.org" , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Leo Li , "M.h. Lian" , "robh+dt@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "gustavo.pimentel@synopsys.com" , "bhelgaas@google.com" , "shawnguo@kernel.org" Mingkai Hu List-Id: devicetree@vger.kernel.org SGksCgpPbiAxNi8wOC8xOSA4OjI4IEFNLCBYaWFvd2VpIEJhbyB3cm90ZToKPiAKPiAKPj4gLS0t LS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPj4gRnJvbTogQW5kcmV3IE11cnJheSA8YW5kcmV3Lm11 cnJheUBhcm0uY29tPgo+PiBTZW50OiAyMDE5xOo41MIxNcjVIDE5OjU0Cj4+IFRvOiBYaWFvd2Vp IEJhbyA8eGlhb3dlaS5iYW9AbnhwLmNvbT4KPj4gQ2M6IGppbmdvb2hhbjFAZ21haWwuY29tOyBn dXN0YXZvLnBpbWVudGVsQHN5bm9wc3lzLmNvbTsKPj4gYmhlbGdhYXNAZ29vZ2xlLmNvbTsgcm9i aCtkdEBrZXJuZWwub3JnOyBtYXJrLnJ1dGxhbmRAYXJtLmNvbTsKPj4gc2hhd25ndW9Aa2VybmVs Lm9yZzsgTGVvIExpIDxsZW95YW5nLmxpQG54cC5jb20+OyBraXNob25AdGkuY29tOwo+PiBsb3Jl bnpvLnBpZXJhbGlzaUBhcm0uY29tOyBhcm5kQGFybmRiLmRlOyBncmVna2hAbGludXhmb3VuZGF0 aW9uLm9yZzsKPj4gTS5oLiBMaWFuIDxtaW5naHVhbi5saWFuQG54cC5jb20+OyBNaW5na2FpIEh1 IDxtaW5na2FpLmh1QG54cC5jb20+Owo+PiBSb3kgWmFuZyA8cm95LnphbmdAbnhwLmNvbT47IGxp bnV4LXBjaUB2Z2VyLmtlcm5lbC5vcmc7Cj4+IGRldmljZXRyZWVAdmdlci5rZXJuZWwub3JnOyBs aW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnOwo+PiBsaW51eC1hcm0ta2VybmVsQGxpc3RzLmlu ZnJhZGVhZC5vcmc7IGxpbnV4cHBjLWRldkBsaXN0cy5vemxhYnMub3JnCj4+IFN1YmplY3Q6IFJl OiBbUEFUQ0ggMDIvMTBdIFBDSTogZGVzaWdud2FyZS1lcDogQWRkIHRoZSBkb29yYmVsbCBtb2Rl IG9mCj4+IE1TSS1YIGluIEVQIG1vZGUKPj4KPj4gT24gVGh1LCBBdWcgMTUsIDIwMTkgYXQgMDQ6 Mzc6MDhQTSArMDgwMCwgWGlhb3dlaSBCYW8gd3JvdGU6Cj4+PiBBZGQgdGhlIGRvb3JiZWxsIG1v ZGUgb2YgTVNJLVggaW4gRVAgbW9kZS4KPj4+Cj4+PiBTaWduZWQtb2ZmLWJ5OiBYaWFvd2VpIEJh byA8eGlhb3dlaS5iYW9AbnhwLmNvbT4KPj4+IC0tLQo+Pj4gIGRyaXZlcnMvcGNpL2NvbnRyb2xs ZXIvZHdjL3BjaWUtZGVzaWdud2FyZS1lcC5jIHwgMTQgKysrKysrKysrKysrKysKPj4+ICBkcml2 ZXJzL3BjaS9jb250cm9sbGVyL2R3Yy9wY2llLWRlc2lnbndhcmUuaCAgICB8IDE0ICsrKysrKysr KysrKysrCj4+PiAgMiBmaWxlcyBjaGFuZ2VkLCAyOCBpbnNlcnRpb25zKCspCj4+Pgo+Pj4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvcGNpL2NvbnRyb2xsZXIvZHdjL3BjaWUtZGVzaWdud2FyZS1lcC5j Cj4+PiBiL2RyaXZlcnMvcGNpL2NvbnRyb2xsZXIvZHdjL3BjaWUtZGVzaWdud2FyZS1lcC5jCj4+ PiBpbmRleCA3NWUyOTU1Li5lM2E3Y2RmIDEwMDY0NAo+Pj4gLS0tIGEvZHJpdmVycy9wY2kvY29u dHJvbGxlci9kd2MvcGNpZS1kZXNpZ253YXJlLWVwLmMKPj4+ICsrKyBiL2RyaXZlcnMvcGNpL2Nv bnRyb2xsZXIvZHdjL3BjaWUtZGVzaWdud2FyZS1lcC5jCj4+PiBAQCAtNDU0LDYgKzQ1NCwyMCBA QCBpbnQgZHdfcGNpZV9lcF9yYWlzZV9tc2lfaXJxKHN0cnVjdCBkd19wY2llX2VwCj4+ICplcCwg dTggZnVuY19ubywKPj4+ICAJcmV0dXJuIDA7Cj4+PiAgfQo+Pj4KPj4+ICtpbnQgZHdfcGNpZV9l cF9yYWlzZV9tc2l4X2lycV9kb29yYmVsbChzdHJ1Y3QgZHdfcGNpZV9lcCAqZXAsIHU4Cj4+IGZ1 bmNfbm8sCj4+PiArCQkJCSAgICAgICB1MTYgaW50ZXJydXB0X251bSkKPj4+ICt7Cj4+PiArCXN0 cnVjdCBkd19wY2llICpwY2kgPSB0b19kd19wY2llX2Zyb21fZXAoZXApOwo+Pj4gKwl1MzIgbXNn X2RhdGE7Cj4+PiArCj4+PiArCW1zZ19kYXRhID0gKGZ1bmNfbm8gPDwgUENJRV9NU0lYX0RPT1JC RUxMX1BGX1NISUZUKSB8Cj4+PiArCQkgICAoaW50ZXJydXB0X251bSAtIDEpOwo+Pj4gKwo+Pj4g Kwlkd19wY2llX3dyaXRlbF9kYmkocGNpLCBQQ0lFX01TSVhfRE9PUkJFTEwsIG1zZ19kYXRhKTsK Pj4+ICsKPj4+ICsJcmV0dXJuIDA7Cj4+PiArfQo+Pj4gKwo+Pj4gIGludCBkd19wY2llX2VwX3Jh aXNlX21zaXhfaXJxKHN0cnVjdCBkd19wY2llX2VwICplcCwgdTggZnVuY19ubywKPj4+ICAJCQkg ICAgICB1MTYgaW50ZXJydXB0X251bSkKPj4KPj4gSGF2ZSBJIHVuZGVyc3Rvb2QgY29ycmVjdGx5 IHRoYXQgdGhlIGhhcmR3YXJlIHByb3ZpZGVzIGFuIGFsdGVybmF0aXZlCj4+IG1lY2hhbmlzbSB0 aGF0IGFsbG93cyBmb3IgcmFpc2luZyBNU0ktWCBpbnRlcnJ1cHRzIHdpdGhvdXQgdGhlIGJvdGhl ciBvZgo+PiByZWFkaW5nIHRoZSBjYXBhYmlsaXRpZXMgcmVnaXN0ZXJzPwo+IFllcywgdGhlIGhh cmR3YXJlIHByb3ZpZGUgdHdvIHdheSB0byBNU0ktWCwgcGxlYXNlIGNoZWNrIHRoZSBwYWdlIDQ5 MiBvZiAKPiBEV0NfcGNpZV9kbV9yZWdpc3RlcnNfNC4zMCBNZW51Lgo+IE1TSVhfRE9PUkJFTExf T0ZGIG9uIHBhZ2UgNDkyIDB4OTQ4IERlc2NyaXB0aW9uOiBNU0ktWCBEb29yYmVsbCBSZWdpc3Rl ci4uLi4+Cj4+Cj4+IElmIHNvIGlzIHRoZXJlIGFueSBnb29kIHJlYXNvbiB0byBrZWVwIGR3X3Bj aWVfZXBfcmFpc2VfbXNpeF9pcnE/IChBbmQgdGh1cwo+PiB1c2UgaXQgaW4gZHdfcGxhdF9wY2ll X2VwX3JhaXNlX2lycSBhbHNvKT8KPiBJIGFtIG5vdCBzdXJlLCBidXQgSSB0aGluayB0aGUgZHdf cGNpZV9lcF9yYWlzZV9tc2l4X2lycSBmdW5jdGlvbiBpcyBub3QgY29ycmVjdCwgCj4gYmVjYXVz ZSBJIHRoaW5rIHdlIGNhbid0IGdldCB0aGUgTVNJWCB0YWJsZSBmcm9tIHRoZSBhZGRyZXNzIGVw LT5waHlzX2Jhc2UgKyB0YmxfYWRkciwgCj4gYnV0IEkgYWxzbyBkb24ndCBrbm93IHdoZXJlIEkg Y2FuIGdldCB0aGUgY29ycmVjdCBNU0lYIHRhYmxlLgoKU29tZXRpbWUgYmFjayB3aGVuIEkgdHJp ZWQgcmFpc2luZyBNU0ktWCBmcm9tIEVQLCBpdCB3YXMgZmFpbGluZy4gSXQncyBxdWl0ZQpwb3Nz aWJsZSBkd19wY2llX2VwX3JhaXNlX21zaXhfaXJxIGZ1bmN0aW9uIGlzIG5vdCBjb3JyZWN0LgoK TVNJLVggdGFibGUgY2FuIGJlIG9idGFpbmVkIGZyb20gdGhlIGluYm91bmQgQVRVIGNvcnJlc3Bv bmRpbmcgdG8gdGhlIE1TSVggYmFyLgpJTU8gTVNJLVggc3VwcG9ydCBpbiBFUCBtb2RlIG5lZWRz IHJld29yay4gRm9yIGluc3RhbmNlIHNldF9tc2l4IHNob3VsZCBhbHNvCnRha2UgQkFSIG51bWJl ciBhcyBpbnB1dCB0byBiZSBjb25maWd1cmVkIGluIHRoZSBNU0ktWCBjYXBhYmlsaXR5LiBUaGUg ZnVuY3Rpb24KZHJpdmVyIChwY2ktZXBmLXRlc3QuYykgc2hvdWxkIGFsbG9jYXRlIG1lbW9yeSB0 YWtpbmcgaW50byBhY2NvdW50IHRoZSBNU0ktWCB0YWJsZS4KClRoYW5rcwpLaXNob24KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJu ZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK