From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH] mmc: core: Lower max_seg_size if too high for DMA Date: Tue, 11 Dec 2018 15:49:20 +0200 Message-ID: References: <20181031155738.18367-1-tony@atomide.com> <20181129191332.GY53235@atomide.com> <20181211131336.GD9507@n2100.armlinux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20181211131336.GD9507@n2100.armlinux.org.uk> 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: Russell King - ARM Linux , Ulf Hansson Cc: Tony Lindgren , linux-omap , "linux-mmc@vger.kernel.org" , Linux ARM , Kishon List-Id: linux-mmc@vger.kernel.org UnVzc2VsbCwKCk9uIDExLzEyLzIwMTggMTUuMTMsIFJ1c3NlbGwgS2luZyAtIEFSTSBMaW51eCB3 cm90ZToKPiAKPiBXZSdyZSBuZWFyaW5nIHRoZSBtZXJnZSB3aW5kb3csIGFuZCB0aGlzIGlzIGEg cmVncmVzc2lvbiB0aGF0IGlzIHlldAo+IHRvIGJlIHNvbHZlZC4gIEl0IGNhdXNlcyBhIGtlcm5l bCB3YXJuaW5nIHdpdGggYmFja3RyYWNlLCBzbyBpdCdzCj4gdmVyeSBhbm5veWluZy4KPiAKPiBU aGUgZXJyb3IgaXM6Cj4gCj4gb21hcC1kbWEtZW5naW5lIDRhMDU2MDAwLmRtYS1jb250cm9sbGVy OiBETUEtQVBJOiBtYXBwaW5nIHNnIHNlZ21lbnQgbG9uZ2VyIHRoYW4gZGV2aWNlIGNsYWltcyB0 byBzdXBwb3J0IFtsZW49Njk2MzJdIFttYXg9NjU1MzZdCj4gCj4gd2hpY2ggaW5kaWNhdGVzIHRo YXQgd2UgaGF2ZSBhIFNHIHNlZ21lbnQgbGVuZ3RoIHRoYXQgZXhjZWVkcyB0aHRlCj4gcHVibGlz aGVkIG1heGltdW0gc2VnbWVudCBzaXplIGZvciBhIGRldmljZSAtIGluIHRoaXMgY2FzZSB0aGUK PiBETUEgZW5naW5lIGRldmljZS4gIFRoZSBtYXhpbXVtIHNlZ21lbnQgc2l6ZSBmb3IgdGhlIERN QSBlbmdpbmUgY29tZXMKPiBmcm9tIHRoZSBkZWZhdWx0IHBlci1kZXZpY2Ugc2V0dGluZywgaW4g bGludXgvZG1hLW1hcHBpbmcuaCwgd2hpY2ggaXMKPiA2NEsuCj4gCj4gSG93ZXZlciwgb21hcF9o c21tYyBzZXRzOgo+IAo+ICAgICAgICAgbW1jLT5tYXhfYmxrX3NpemUgPSA1MTI7ICAgICAgIC8q IEJsb2NrIExlbmd0aCBhdCBtYXggY2FuIGJlIDEwMjQgKi8KPiAgICAgICAgIG1tYy0+bWF4X2Js a19jb3VudCA9IDB4RkZGRjsgICAgLyogTm8uIG9mIEJsb2NrcyBpcyAxNiBiaXRzICovCj4gICAg ICAgICBtbWMtPm1heF9yZXFfc2l6ZSA9IG1tYy0+bWF4X2Jsa19zaXplICogbW1jLT5tYXhfYmxr X2NvdW50Owo+ICAgICAgICAgbW1jLT5tYXhfc2VnX3NpemUgPSBtbWMtPm1heF9yZXFfc2l6ZTsK PiAKPiB3aGljaCBlbmRzIHVwIHRlbGxpbmcgdGhlIGJsb2NrIGxheWVyIHRoYXQgd2Ugc3VwcG9y dCBhIG1heGltdW0gc2VnbWVudAo+IHNpemUgb2YgNjU1MzUqNTEyLCBzbyBvZiBjb3Vyc2UgaXQg X3dpbGxfIHBhc3MgU0cgbGlzdHMgd2hlcmUgYSBzZWdtZW50Cj4gaXMgbG9uZ2VyIHRoYW4gNjRL Lgo+IAo+IFRoZSBwcm9ibGVtIGhlcmUgaXMgdGhhdCB0aGUgSFNNTUMgZHJpdmVyIGRvZXNuJ3Qg dGFrZSBhY2NvdW50IG9mIHRoZQo+IERNQSBlbmdpbmUgZGV2aWNlJ3MgY2FwYWJpbGl0aWVzLgo+ IAo+IFdlIGhhdmUgc29tZXRoaW5nIG9mIGFuIG9kZCBzaXR1YXRpb24gaW4gdGhhdCB0aGUgb21h cC1kbWEgZGV2aWNlJ3MKPiBtYXhpbXVtIFNHIHNpemUgZGVwZW5kcyBvbiB0aGUgImFkZHJlc3Mg d2lkdGgiIC0gaXQncyA2NEsgdHJhbnNmZXJzCj4gb2Ygd2hhdGV2ZXIgdW5pdCAiYWRkcmVzcyB3 aWR0aCIgaXMsIHNvIHRoZSBjdXJyZW50IGltcGxlbWVudGF0aW9uIG9mCj4gcGVyLWRldmljZSBw YXJhbWV0ZXJzIGRvZXNuJ3QgZXhhY3RseSB3b3JrLiAgVGhhdCBtZWFucyB0aGUgZGVmYXVsdAo+ IDY0SyBsaW1pdCBhdCB0aGUgZGV2aWNlLWxldmVsIGlzIHJlYXNvbmFibGUuCj4gCj4gVGhlIG9u bHkgdGhpbmcgSSBjYW4gdGhpbmsgb2YgZG9pbmcgaXMgYWRkaW5nIGludG8gb21hcF9oc21tYzoK PiAKPiAJbW1jLT5tYXhfc2VnX3NpemUgPSBtaW4obW1jLT5tYXhfcmVxX3NpemUsCj4gCQkJCW1p bihkbWFfZ2V0X21heF9zZWdfc2l6ZShob3N0LT5yeF9jaGFuLT5kZXZpY2UtPmRldiksCj4gCQkJ CSAgICBkbWFfZ2V0X21heF9zZWdfc2l6ZShob3N0LT50eF9jaGFuLT5kZXZpY2UtPmRldikpKTsK PiAKPiB0byBsaW1pdCB0aGUgbWF4aW11bSBzZWdtZW50IHNpemUgdG8gdGhhdCBvZiB0aGUgZGV2 aWNlIF9hbmRfIGRtYQo+IGVuZ2luZSdzIGNhcGFiaWxpdGllcy4KCk1ha2Ugc2Vuc2UuCgo+IERv aW5nIHRoaXMgc29sdmVzIHRoZSBwcm9ibGVtIGZvciBtZS4KPiAKCi0gUMOpdGVyCgpUZXhhcyBJ bnN0cnVtZW50cyBGaW5sYW5kIE95LCBQb3Jra2FsYW5rYXR1IDIyLCAwMDE4MCBIZWxzaW5raS4K WS10dW5udXMvQnVzaW5lc3MgSUQ6IDA2MTU1MjEtNC4gS290aXBhaWtrYS9Eb21pY2lsZTogSGVs c2lua2kKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFybS1rZXJuZWwK