From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [PATCH/RFC,4/6] mm: Add NO_DMA dummies for DMA pool API From: Robin Murphy Message-Id: <61f0970a-c0aa-9b6f-74c7-d63be1e477ac@arm.com> Date: Tue, 6 Feb 2018 12:47:56 +0000 To: Geert Uytterhoeven , Christoph Hellwig , Marek Szyprowski , Arnd Bergmann , Mark Brown , Richard Weinberger Cc: Felipe Balbi , Greg Kroah-Hartman , "James E . J . Bottomley" , "Martin K . Petersen" , iommu@lists.linux-foundation.org, linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org List-ID: SGkgR2VlcnQsCgpPbiAwNi8wMi8xOCAxMDoxNCwgR2VlcnQgVXl0dGVyaG9ldmVuIHdyb3RlOgo+ IEFkZCBkdW1taWVzIGZvciBkbWF7LG19X3Bvb2xfe2NyZWF0ZSxkZXN0cm95LGFsbG9jLGZyZWV9 KCksIHRvIGFsbG93Cj4gY29tcGlsZS10ZXN0aW5nIGlmIE5PX0RNQT15Lgo+IAo+IFRoaXMgcHJl dmVudHMgdGhlIGZvbGxvd2luZyBmcm9tIHNob3dpbmcgdXAgbGF0ZXI6Cj4gCj4gICAgICBFUlJP UjogImRtYV9wb29sX2Rlc3Ryb3kiIFtkcml2ZXJzL3VzYi9tdHUzL210dTMua29dIHVuZGVmaW5l ZCEKPiAgICAgIEVSUk9SOiAiZG1hX3Bvb2xfZnJlZSIgW2RyaXZlcnMvdXNiL210dTMvbXR1My5r b10gdW5kZWZpbmVkIQo+ICAgICAgRVJST1I6ICJkbWFfcG9vbF9hbGxvYyIgW2RyaXZlcnMvdXNi L210dTMvbXR1My5rb10gdW5kZWZpbmVkIQo+ICAgICAgRVJST1I6ICJkbWFfcG9vbF9jcmVhdGUi IFtkcml2ZXJzL3VzYi9tdHUzL210dTMua29dIHVuZGVmaW5lZCEKPiAgICAgIEVSUk9SOiAiZG1h X3Bvb2xfZGVzdHJveSIgW2RyaXZlcnMvc2NzaS9oaXNpX3Nhcy9oaXNpX3Nhc19tYWluLmtvXSB1 bmRlZmluZWQhCj4gICAgICBFUlJPUjogImRtYV9wb29sX2ZyZWUiIFtkcml2ZXJzL3Njc2kvaGlz aV9zYXMvaGlzaV9zYXNfbWFpbi5rb10gdW5kZWZpbmVkIQo+ICAgICAgRVJST1I6ICJkbWFfcG9v bF9hbGxvYyIgW2RyaXZlcnMvc2NzaS9oaXNpX3Nhcy9oaXNpX3Nhc19tYWluLmtvXSB1bmRlZmlu ZWQhCj4gICAgICBFUlJPUjogImRtYV9wb29sX2NyZWF0ZSIgW2RyaXZlcnMvc2NzaS9oaXNpX3Nh cy9oaXNpX3Nhc19tYWluLmtvXSB1bmRlZmluZWQhCj4gICAgICBFUlJPUjogImRtYV9wb29sX2Fs bG9jIiBbZHJpdmVycy9tYWlsYm94L2JjbS1wZGMtbWFpbGJveC5rb10gdW5kZWZpbmVkIQo+ICAg ICAgRVJST1I6ICJkbWFfcG9vbF9mcmVlIiBbZHJpdmVycy9tYWlsYm94L2JjbS1wZGMtbWFpbGJv eC5rb10gdW5kZWZpbmVkIQo+ICAgICAgRVJST1I6ICJkbWFfcG9vbF9jcmVhdGUiIFtkcml2ZXJz L21haWxib3gvYmNtLXBkYy1tYWlsYm94LmtvXSB1bmRlZmluZWQhCj4gICAgICBFUlJPUjogImRt YV9wb29sX2Rlc3Ryb3kiIFtkcml2ZXJzL21haWxib3gvYmNtLXBkYy1tYWlsYm94LmtvXSB1bmRl ZmluZWQhCj4gCj4gU2lnbmVkLW9mZi1ieTogR2VlcnQgVXl0dGVyaG9ldmVuIDxnZWVydEBsaW51 eC1tNjhrLm9yZz4KPiAtLS0KPiAgIGluY2x1ZGUvbGludXgvZG1hcG9vbC5oIHwgMjEgKysrKysr KysrKysrKysrKysrKy0tCj4gICAxIGZpbGUgY2hhbmdlZCwgMTkgaW5zZXJ0aW9ucygrKSwgMiBk ZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvaW5jbHVkZS9saW51eC9kbWFwb29sLmggYi9p bmNsdWRlL2xpbnV4L2RtYXBvb2wuaAo+IGluZGV4IDUzYmE3Mzc1MDVkZjMxYzcuLmFkZWI1ZTU2 YzNhZDczYTggMTAwNjQ0Cj4gLS0tIGEvaW5jbHVkZS9saW51eC9kbWFwb29sLmgKPiArKysgYi9p bmNsdWRlL2xpbnV4L2RtYXBvb2wuaAo+IEBAIC0xNiw2ICsxNiw3IEBACj4gICAKPiAgIHN0cnVj dCBkZXZpY2U7Cj4gICAKPiArI2lmZGVmIENPTkZJR19IQVNfRE1BCj4gICBzdHJ1Y3QgZG1hX3Bv b2wgKmRtYV9wb29sX2NyZWF0ZShjb25zdCBjaGFyICpuYW1lLCBzdHJ1Y3QgZGV2aWNlICpkZXYs Cj4gICAJCQlzaXplX3Qgc2l6ZSwgc2l6ZV90IGFsaWduLCBzaXplX3QgYWxsb2NhdGlvbik7Cj4g ICAKPiBAQCAtMjMsNiArMjQsMTcgQEAgdm9pZCBkbWFfcG9vbF9kZXN0cm95KHN0cnVjdCBkbWFf cG9vbCAqcG9vbCk7Cj4gICAKPiAgIHZvaWQgKmRtYV9wb29sX2FsbG9jKHN0cnVjdCBkbWFfcG9v bCAqcG9vbCwgZ2ZwX3QgbWVtX2ZsYWdzLAo+ICAgCQkgICAgIGRtYV9hZGRyX3QgKmhhbmRsZSk7 Cj4gK3ZvaWQgZG1hX3Bvb2xfZnJlZShzdHJ1Y3QgZG1hX3Bvb2wgKnBvb2wsIHZvaWQgKnZhZGRy LCBkbWFfYWRkcl90IGFkZHIpOwo+ICsjZWxzZSAvKiAhQ09ORklHX0hBU19ETUEgKi8KPiArc3Rh dGljIGlubGluZSBzdHJ1Y3QgZG1hX3Bvb2wgKmRtYV9wb29sX2NyZWF0ZShjb25zdCBjaGFyICpu YW1lLAo+ICsJc3RydWN0IGRldmljZSAqZGV2LCBzaXplX3Qgc2l6ZSwgc2l6ZV90IGFsaWduLCBz aXplX3QgYWxsb2NhdGlvbikKPiAreyByZXR1cm4gTlVMTDsgfQo+ICtzdGF0aWMgaW5saW5lIHZv aWQgZG1hX3Bvb2xfZGVzdHJveShzdHJ1Y3QgZG1hX3Bvb2wgKnBvb2wpIHsgfQo+ICtzdGF0aWMg aW5saW5lIHZvaWQgKmRtYV9wb29sX2FsbG9jKHN0cnVjdCBkbWFfcG9vbCAqcG9vbCwgZ2ZwX3Qg bWVtX2ZsYWdzLAo+ICsJCQkJICAgZG1hX2FkZHJfdCAqaGFuZGxlKSB7IHJldHVybiBOVUxMOyB9 Cj4gK3N0YXRpYyBpbmxpbmUgdm9pZCBkbWFfcG9vbF9mcmVlKHN0cnVjdCBkbWFfcG9vbCAqcG9v bCwgdm9pZCAqdmFkZHIsCj4gKwkJCQkgZG1hX2FkZHJfdCBhZGRyKSB7IH0KPiArI2VuZGlmIC8q ICFDT05GSUdfSEFTX0RNQSAqLwo+ICAgCj4gICBzdGF0aWMgaW5saW5lIHZvaWQgKmRtYV9wb29s X3phbGxvYyhzdHJ1Y3QgZG1hX3Bvb2wgKnBvb2wsIGdmcF90IG1lbV9mbGFncywKPiAgIAkJCQkg ICAgZG1hX2FkZHJfdCAqaGFuZGxlKQo+IEBAIC0zMCwxNCArNDIsMTkgQEAgc3RhdGljIGlubGlu ZSB2b2lkICpkbWFfcG9vbF96YWxsb2Moc3RydWN0IGRtYV9wb29sICpwb29sLCBnZnBfdCBtZW1f ZmxhZ3MsCj4gICAJcmV0dXJuIGRtYV9wb29sX2FsbG9jKHBvb2wsIG1lbV9mbGFncyB8IF9fR0ZQ X1pFUk8sIGhhbmRsZSk7Cj4gICB9Cj4gICAKPiAtdm9pZCBkbWFfcG9vbF9mcmVlKHN0cnVjdCBk bWFfcG9vbCAqcG9vbCwgdm9pZCAqdmFkZHIsIGRtYV9hZGRyX3QgYWRkcik7Cj4gLQo+ICAgLyoK PiAgICAqIE1hbmFnZWQgRE1BIHBvb2wKPiAgICAqLwo+ICsjaWZkZWYgQ09ORklHX0hBU19ETUEK PiAgIHN0cnVjdCBkbWFfcG9vbCAqZG1hbV9wb29sX2NyZWF0ZShjb25zdCBjaGFyICpuYW1lLCBz dHJ1Y3QgZGV2aWNlICpkZXYsCj4gICAJCQkJICBzaXplX3Qgc2l6ZSwgc2l6ZV90IGFsaWduLCBz aXplX3QgYWxsb2NhdGlvbik7Cj4gICB2b2lkIGRtYW1fcG9vbF9kZXN0cm95KHN0cnVjdCBkbWFf cG9vbCAqcG9vbCk7Cj4gKyNlbHNlIC8qICFDT05GSUdfSEFTX0RNQSAqLwo+ICtzdGF0aWMgaW5s aW5lIHN0cnVjdCBkbWFfcG9vbCAqZG1hbV9wb29sX2NyZWF0ZShjb25zdCBjaGFyICpuYW1lLAo+ ICsJc3RydWN0IGRldmljZSAqZGV2LCBzaXplX3Qgc2l6ZSwgc2l6ZV90IGFsaWduLCBzaXplX3Qg YWxsb2NhdGlvbikKPiAreyByZXR1cm4gTlVMTDsgfQo+ICtzdGF0aWMgaW5saW5lIHZvaWQgZG1h bV9wb29sX2Rlc3Ryb3koc3RydWN0IGRtYV9wb29sICpwb29sKSB7IH0KPiArI2VuZGlmIC8qICFD T05GSUdfSEFTX0RNQSAqLwoKTml0OiBJdCBtaWdodCBiZSB0aWRpZXIgdG8gYWRkICphbGwqIHRo ZSBzdHVicyBkb3duIGhlcmUgc28gdGhhdCB0aGVyZSAKb25seSBuZWVkIGJlIGEgc2luZ2xlICNp ZmRlZiwgdGhlbiBtb3ZlIHRoZSBkbWFfcG9vbF96YWxsb2MgZGVmaW5pdGlvbiAKb3V0c2lkZSBh dCB0aGUgZW5kICh3aGVyZSB3ZSBtaWdodCBldmVudHVhbGx5IGdldCByaWQgb2YgaXQgYW55d2F5 KS4KCk90aGVyIHRoYW4gdGhhdCwgdGhvdWdoLCBJIHRoaW5rIEkgYWdyZWUgd2l0aCB0aGUgc2Vy aWVzIGluIGdlbmVyYWwgLSAKbW9yZSBDT01QSUxFX1RFU1QgaXMgYWx3YXlzIGdvb2QgZnJvbSB0 aGUgcG9pbnQgb2YgdmlldyBvZiB3ZWVkaW5nIG91dCAKZHJpdmVycyB1c2luZyBhcmNoaXRlY3R1 cmUtc3BlY2lmaWMgRE1BIEFQSSBpbnRlcm5hbHMgd2hpY2ggYXJlbid0IHBhcnQgCm9mIHRoZSBw cm9wZXIgZ2VuZXJpYyBpbnRlcmZhY2UuCgpSb2Jpbi4KCj4gICAKPiAgICNlbmRpZgo+ICAgCj4K LS0tClRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNj cmliZSBsaW51eC11c2IiIGluCnRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdl ci5rZXJuZWwub3JnCk1vcmUgbWFqb3Jkb21vIGluZm8gYXQgIGh0dHA6Ly92Z2VyLmtlcm5lbC5v cmcvbWFqb3Jkb21vLWluZm8uaHRtbAo=