From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] Revert "drm/vgem: fix cache synchronization on arm/arm64" Date: Fri, 2 Aug 2019 11:21:34 +0200 Message-ID: <20190802092134.GL7444@phenom.ffwll.local> References: <20190801124458.24949-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20190801124458.24949-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Chris Wilson Cc: Rob Clark , Daniel Vetter , intel-gfx@lists.freedesktop.org, Sean Paul , dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBBdWcgMDEsIDIwMTkgYXQgMDE6NDQ6NThQTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IGNvbW1pdCA3ZTllNWVhZDU1YmUgKCJkcm0vdmdlbTogZml4IGNhY2hlIHN5bmNocm9u aXphdGlvbiBvbiBhcm0vYXJtNjQiKQo+IGJyb2tlIGFsbCBvZiB0aGUgIWxsYyBpOTE1LXZnZW0g Y29oZXJlbmN5IHRlc3RzIGluIENJLCBhbmQgbGVmdCB0aGUgSFcKPiB2ZXJ5LCB2ZXJ5IHVuaGFw cHkgKHdoaWNoIGlzIGV2ZW4gbW9yZSBzY2FyeSkuCj4gCj4gRml4ZXM6IDdlOWU1ZWFkNTViZSAo ImRybS92Z2VtOiBmaXggY2FjaGUgc3luY2hyb25pemF0aW9uIG9uIGFybS9hcm02NCIpCj4gU2ln bmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6 IERhbmllbCBWZXR0ZXIgPGRhbmllbC52ZXR0ZXJAZmZ3bGwuY2g+Cj4gQ2M6IFJvYiBDbGFyayA8 cm9iZGNsYXJrQGNocm9taXVtLm9yZz4KPiBDYzogU2VhbiBQYXVsIDxzZWFucGF1bEBjaHJvbWl1 bS5vcmc+CgpBY2tlZC1ieTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4K Ck5vdCB0aGF0IHRoaXMgY291bnRzIGEgaG9sZSBsb3QgdW5mb3J0dW5hdGVseSA6LS8KClRyb3Vi bGUgaGVyZSBpcyB0aGF0IHg4NiBhc3N1bWVzIHRoYXQgZXZlcnl0aGluZyBpcyBjb2hlcmVudCAo aXQncyBub3QpCmFuZCBkbWEtYXBpIGFzc3VtZXMgdGhhdCBjb2hlcmVudG5lc3MgaXMgYSBwcm9w ZXJ0eSBvZiB0aGUgZGV2aWNlIGFuZApvcGFxdWUgdG8gdGhlIGRldmljZSBkcml2ZXIgKGl0J3Mg bm90KS4gU28gbWF5YmUgd2Ugc2hvdWxkIGRvIGEgbWl4IG9mIHYxCmFuZCB2MiBvZiBSb2IncyBw YXRjaGVzLCBpLmUuIG5vdCBpbmZsaWN0IHRoZSBjYWNoZSBmbHVzaGluZyBpbnRvCmRybV9jbGZs dXNoLmMgKHRvIGF2b2lkIHRoZSBwb2ludGxlc3Mgc3RydWN0IGRldmljZSBub25zZW5zZSksIGJ1 dCB0aGVuCmFsc28gZG8gdGhpcyBpbiB2Z2VtIGhlcmUgb25seSB3aXRoICNpZmRlZiBBUk02NCBh bmQgbGVhdmUgdGhlIGNsZmx1c2ggZm9yCmV2ZXJ5dGhpbmcgZWxzZS4KLURhbmllbAoKPiAtLS0K PiAgZHJpdmVycy9ncHUvZHJtL3ZnZW0vdmdlbV9kcnYuYyB8IDEzMCArKysrKysrKysrKystLS0t LS0tLS0tLS0tLS0tLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgNDcgaW5zZXJ0aW9ucygrKSwgODMg ZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS92Z2VtL3ZnZW1f ZHJ2LmMgYi9kcml2ZXJzL2dwdS9kcm0vdmdlbS92Z2VtX2Rydi5jCj4gaW5kZXggYjk4Njg5ZmIw ZDVkLi41YmQ2MGRlZDNkODEgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL3ZnZW0vdmdl bV9kcnYuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS92Z2VtL3ZnZW1fZHJ2LmMKPiBAQCAtNTQs MTYgKzU0LDEwIEBAIHN0YXRpYyBzdHJ1Y3QgdmdlbV9kZXZpY2Ugewo+ICAJc3RydWN0IHBsYXRm b3JtX2RldmljZSAqcGxhdGZvcm07Cj4gIH0gKnZnZW1fZGV2aWNlOwo+ICAKPiAtc3RhdGljIHZv aWQgc3luY19hbmRfdW5waW4oc3RydWN0IGRybV92Z2VtX2dlbV9vYmplY3QgKmJvKTsKPiAtc3Rh dGljIHN0cnVjdCBwYWdlICoqcGluX2FuZF9zeW5jKHN0cnVjdCBkcm1fdmdlbV9nZW1fb2JqZWN0 ICpibyk7Cj4gLQo+ICBzdGF0aWMgdm9pZCB2Z2VtX2dlbV9mcmVlX29iamVjdChzdHJ1Y3QgZHJt X2dlbV9vYmplY3QgKm9iaikKPiAgewo+ICAJc3RydWN0IGRybV92Z2VtX2dlbV9vYmplY3QgKnZn ZW1fb2JqID0gdG9fdmdlbV9ibyhvYmopOwo+ICAKPiAtCWlmICghb2JqLT5pbXBvcnRfYXR0YWNo KQo+IC0JCXN5bmNfYW5kX3VucGluKHZnZW1fb2JqKTsKPiAtCj4gIAlrdmZyZWUodmdlbV9vYmot PnBhZ2VzKTsKPiAgCW11dGV4X2Rlc3Ryb3koJnZnZW1fb2JqLT5wYWdlc19sb2NrKTsKPiAgCj4g QEAgLTkxLDE1ICs4NSw0MCBAQCBzdGF0aWMgdm1fZmF1bHRfdCB2Z2VtX2dlbV9mYXVsdChzdHJ1 Y3Qgdm1fZmF1bHQgKnZtZikKPiAgCQlyZXR1cm4gVk1fRkFVTFRfU0lHQlVTOwo+ICAKPiAgCW11 dGV4X2xvY2soJm9iai0+cGFnZXNfbG9jayk7Cj4gLQlpZiAoIW9iai0+cGFnZXMpCj4gLQkJcGlu X2FuZF9zeW5jKG9iaik7Cj4gIAlpZiAob2JqLT5wYWdlcykgewo+ICAJCWdldF9wYWdlKG9iai0+ cGFnZXNbcGFnZV9vZmZzZXRdKTsKPiAgCQl2bWYtPnBhZ2UgPSBvYmotPnBhZ2VzW3BhZ2Vfb2Zm c2V0XTsKPiAgCQlyZXQgPSAwOwo+ICAJfQo+ICAJbXV0ZXhfdW5sb2NrKCZvYmotPnBhZ2VzX2xv Y2spOwo+ICsJaWYgKHJldCkgewo+ICsJCXN0cnVjdCBwYWdlICpwYWdlOwo+ICsKPiArCQlwYWdl ID0gc2htZW1fcmVhZF9tYXBwaW5nX3BhZ2UoCj4gKwkJCQkJZmlsZV9pbm9kZShvYmotPmJhc2Uu ZmlscCktPmlfbWFwcGluZywKPiArCQkJCQlwYWdlX29mZnNldCk7Cj4gKwkJaWYgKCFJU19FUlIo cGFnZSkpIHsKPiArCQkJdm1mLT5wYWdlID0gcGFnZTsKPiArCQkJcmV0ID0gMDsKPiArCQl9IGVs c2Ugc3dpdGNoIChQVFJfRVJSKHBhZ2UpKSB7Cj4gKwkJCWNhc2UgLUVOT1NQQzoKPiArCQkJY2Fz ZSAtRU5PTUVNOgo+ICsJCQkJcmV0ID0gVk1fRkFVTFRfT09NOwo+ICsJCQkJYnJlYWs7Cj4gKwkJ CWNhc2UgLUVCVVNZOgo+ICsJCQkJcmV0ID0gVk1fRkFVTFRfUkVUUlk7Cj4gKwkJCQlicmVhazsK PiArCQkJY2FzZSAtRUZBVUxUOgo+ICsJCQljYXNlIC1FSU5WQUw6Cj4gKwkJCQlyZXQgPSBWTV9G QVVMVF9TSUdCVVM7Cj4gKwkJCQlicmVhazsKPiArCQkJZGVmYXVsdDoKPiArCQkJCVdBUk5fT04o UFRSX0VSUihwYWdlKSk7Cj4gKwkJCQlyZXQgPSBWTV9GQVVMVF9TSUdCVVM7Cj4gKwkJCQlicmVh azsKPiArCQl9Cj4gIAo+ICsJfQo+ICAJcmV0dXJuIHJldDsKPiAgfQo+ICAKPiBAQCAtMjY1LDkz ICsyODQsMzIgQEAgc3RhdGljIGNvbnN0IHN0cnVjdCBmaWxlX29wZXJhdGlvbnMgdmdlbV9kcml2 ZXJfZm9wcyA9IHsKPiAgCS5yZWxlYXNlCT0gZHJtX3JlbGVhc2UsCj4gIH07Cj4gIAo+IC0vKiBD YWxsZWQgdW5kZXIgcGFnZXNfbG9jaywgZXhjZXB0IGluIGZyZWUgcGF0aCAod2hlcmUgaXQgY2Fu J3QgcmFjZSk6ICovCj4gLXN0YXRpYyB2b2lkIHN5bmNfYW5kX3VucGluKHN0cnVjdCBkcm1fdmdl bV9nZW1fb2JqZWN0ICpibykKPiAtewo+IC0Jc3RydWN0IGRybV9kZXZpY2UgKmRldiA9IGJvLT5i YXNlLmRldjsKPiAtCj4gLQlpZiAoYm8tPnRhYmxlKSB7Cj4gLQkJZG1hX3N5bmNfc2dfZm9yX2Nw dShkZXYtPmRldiwgYm8tPnRhYmxlLT5zZ2wsCj4gLQkJCQliby0+dGFibGUtPm5lbnRzLCBETUFf QklESVJFQ1RJT05BTCk7Cj4gLQkJc2dfZnJlZV90YWJsZShiby0+dGFibGUpOwo+IC0JCWtmcmVl KGJvLT50YWJsZSk7Cj4gLQkJYm8tPnRhYmxlID0gTlVMTDsKPiAtCX0KPiAtCj4gLQlpZiAoYm8t PnBhZ2VzKSB7Cj4gLQkJZHJtX2dlbV9wdXRfcGFnZXMoJmJvLT5iYXNlLCBiby0+cGFnZXMsIHRy dWUsIHRydWUpOwo+IC0JCWJvLT5wYWdlcyA9IE5VTEw7Cj4gLQl9Cj4gLX0KPiAtCj4gLXN0YXRp YyBzdHJ1Y3QgcGFnZSAqKnBpbl9hbmRfc3luYyhzdHJ1Y3QgZHJtX3ZnZW1fZ2VtX29iamVjdCAq Ym8pCj4gLXsKPiAtCXN0cnVjdCBkcm1fZGV2aWNlICpkZXYgPSBiby0+YmFzZS5kZXY7Cj4gLQlp bnQgbnBhZ2VzID0gYm8tPmJhc2Uuc2l6ZSA+PiBQQUdFX1NISUZUOwo+IC0Jc3RydWN0IHBhZ2Ug KipwYWdlczsKPiAtCXN0cnVjdCBzZ190YWJsZSAqc2d0Owo+IC0KPiAtCVdBUk5fT04oIW11dGV4 X2lzX2xvY2tlZCgmYm8tPnBhZ2VzX2xvY2spKTsKPiAtCj4gLQlwYWdlcyA9IGRybV9nZW1fZ2V0 X3BhZ2VzKCZiby0+YmFzZSk7Cj4gLQlpZiAoSVNfRVJSKHBhZ2VzKSkgewo+IC0JCWJvLT5wYWdl c19waW5fY291bnQtLTsKPiAtCQltdXRleF91bmxvY2soJmJvLT5wYWdlc19sb2NrKTsKPiAtCQly ZXR1cm4gcGFnZXM7Cj4gLQl9Cj4gLQo+IC0Jc2d0ID0gZHJtX3ByaW1lX3BhZ2VzX3RvX3NnKHBh Z2VzLCBucGFnZXMpOwo+IC0JaWYgKElTX0VSUihzZ3QpKSB7Cj4gLQkJZGV2X2VycihkZXYtPmRl diwKPiAtCQkJImZhaWxlZCB0byBhbGxvY2F0ZSBzZ3Q6ICVsZFxuIiwKPiAtCQkJUFRSX0VSUihi by0+dGFibGUpKTsKPiAtCQlkcm1fZ2VtX3B1dF9wYWdlcygmYm8tPmJhc2UsIHBhZ2VzLCBmYWxz ZSwgZmFsc2UpOwo+IC0JCW11dGV4X3VubG9jaygmYm8tPnBhZ2VzX2xvY2spOwo+IC0JCXJldHVy biBFUlJfQ0FTVChiby0+dGFibGUpOwo+IC0JfQo+IC0KPiAtCS8qCj4gLQkgKiBGbHVzaCB0aGUg b2JqZWN0IGZyb20gdGhlIENQVSBjYWNoZSBzbyB0aGF0IGltcG9ydGVycwo+IC0JICogY2FuIHJl bHkgb24gY29oZXJlbnQgaW5kaXJlY3QgYWNjZXNzIHZpYSB0aGUgZXhwb3J0ZWQKPiAtCSAqIGRt YS1hZGRyZXNzLgo+IC0JICovCj4gLQlkbWFfc3luY19zZ19mb3JfZGV2aWNlKGRldi0+ZGV2LCBz Z3QtPnNnbCwKPiAtCQkJc2d0LT5uZW50cywgRE1BX0JJRElSRUNUSU9OQUwpOwo+IC0KPiAtCWJv LT5wYWdlcyA9IHBhZ2VzOwo+IC0JYm8tPnRhYmxlID0gc2d0Owo+IC0KPiAtCXJldHVybiBwYWdl czsKPiAtfQo+IC0KPiAgc3RhdGljIHN0cnVjdCBwYWdlICoqdmdlbV9waW5fcGFnZXMoc3RydWN0 IGRybV92Z2VtX2dlbV9vYmplY3QgKmJvKQo+ICB7Cj4gLQlzdHJ1Y3QgcGFnZSAqKnBhZ2VzOwo+ IC0KPiAgCW11dGV4X2xvY2soJmJvLT5wYWdlc19sb2NrKTsKPiAtCWlmIChiby0+cGFnZXNfcGlu X2NvdW50KysgPT0gMCAmJiAhYm8tPnBhZ2VzKSB7Cj4gLQkJcGFnZXMgPSBwaW5fYW5kX3N5bmMo Ym8pOwo+IC0JfSBlbHNlIHsKPiAtCQlXQVJOX09OKCFiby0+cGFnZXMpOwo+IC0JCXBhZ2VzID0g Ym8tPnBhZ2VzOwo+ICsJaWYgKGJvLT5wYWdlc19waW5fY291bnQrKyA9PSAwKSB7Cj4gKwkJc3Ry dWN0IHBhZ2UgKipwYWdlczsKPiArCj4gKwkJcGFnZXMgPSBkcm1fZ2VtX2dldF9wYWdlcygmYm8t PmJhc2UpOwo+ICsJCWlmIChJU19FUlIocGFnZXMpKSB7Cj4gKwkJCWJvLT5wYWdlc19waW5fY291 bnQtLTsKPiArCQkJbXV0ZXhfdW5sb2NrKCZiby0+cGFnZXNfbG9jayk7Cj4gKwkJCXJldHVybiBw YWdlczsKPiArCQl9Cj4gKwo+ICsJCWJvLT5wYWdlcyA9IHBhZ2VzOwo+ICAJfQo+ICAJbXV0ZXhf dW5sb2NrKCZiby0+cGFnZXNfbG9jayk7Cj4gIAo+IC0JcmV0dXJuIHBhZ2VzOwo+ICsJcmV0dXJu IGJvLT5wYWdlczsKPiAgfQo+ICAKPiAgc3RhdGljIHZvaWQgdmdlbV91bnBpbl9wYWdlcyhzdHJ1 Y3QgZHJtX3ZnZW1fZ2VtX29iamVjdCAqYm8pCj4gIHsKPiAtCS8qCj4gLQkgKiBXZSBzaG91bGRu J3QgaGl0IHRoaXMgZm9yIGltcG9ydGVkIGJvJ3MuLiBpbiB0aGUgaW1wb3J0Cj4gLQkgKiBjYXNl IHdlIGRvbid0IG93biB0aGUgc2NhdHRlci10YWJsZQo+IC0JICovCj4gLQlXQVJOX09OKGJvLT5i YXNlLmltcG9ydF9hdHRhY2gpOwo+IC0KPiAgCW11dGV4X2xvY2soJmJvLT5wYWdlc19sb2NrKTsK PiAgCWlmICgtLWJvLT5wYWdlc19waW5fY291bnQgPT0gMCkgewo+IC0JCVdBUk5fT04oIWJvLT50 YWJsZSk7Cj4gLQkJc3luY19hbmRfdW5waW4oYm8pOwo+ICsJCWRybV9nZW1fcHV0X3BhZ2VzKCZi by0+YmFzZSwgYm8tPnBhZ2VzLCB0cnVlLCB0cnVlKTsKPiArCQliby0+cGFnZXMgPSBOVUxMOwo+ ICAJfQo+ICAJbXV0ZXhfdW5sb2NrKCZiby0+cGFnZXNfbG9jayk7Cj4gIH0KPiBAQCAtMzU5LDEy ICszMTcsMTggQEAgc3RhdGljIHZvaWQgdmdlbV91bnBpbl9wYWdlcyhzdHJ1Y3QgZHJtX3ZnZW1f Z2VtX29iamVjdCAqYm8pCj4gIHN0YXRpYyBpbnQgdmdlbV9wcmltZV9waW4oc3RydWN0IGRybV9n ZW1fb2JqZWN0ICpvYmopCj4gIHsKPiAgCXN0cnVjdCBkcm1fdmdlbV9nZW1fb2JqZWN0ICpibyA9 IHRvX3ZnZW1fYm8ob2JqKTsKPiArCWxvbmcgbl9wYWdlcyA9IG9iai0+c2l6ZSA+PiBQQUdFX1NI SUZUOwo+ICAJc3RydWN0IHBhZ2UgKipwYWdlczsKPiAgCj4gIAlwYWdlcyA9IHZnZW1fcGluX3Bh Z2VzKGJvKTsKPiAgCWlmIChJU19FUlIocGFnZXMpKQo+ICAJCXJldHVybiBQVFJfRVJSKHBhZ2Vz KTsKPiAgCj4gKwkvKiBGbHVzaCB0aGUgb2JqZWN0IGZyb20gdGhlIENQVSBjYWNoZSBzbyB0aGF0 IGltcG9ydGVycyBjYW4gcmVseQo+ICsJICogb24gY29oZXJlbnQgaW5kaXJlY3QgYWNjZXNzIHZp YSB0aGUgZXhwb3J0ZWQgZG1hLWFkZHJlc3MuCj4gKwkgKi8KPiArCWRybV9jbGZsdXNoX3BhZ2Vz KHBhZ2VzLCBuX3BhZ2VzKTsKPiArCj4gIAlyZXR1cm4gMDsKPiAgfQo+ICAKPiAtLSAKPiAyLjIz LjAucmMwCj4gCgotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29y cG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlz dHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4v bGlzdGluZm8vZHJpLWRldmVs