From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: [PATCH] drm/i915/ringbuffer: Brute force context restore Date: Mon, 11 Jun 2018 11:48:08 +0100 Message-ID: <20180611104808.24295-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id BF9D489A60 for ; Mon, 11 Jun 2018 10:48:45 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org QW4gaXNzdWUgZW5jb3VudGVyZWQgd2l0aCBzd2l0Y2hpbmcgbW0gb24gZ2VuNyBpcyB0aGF0IHRo ZSBHUFUgbGlrZXMgdG8KaGFuZyAod2l0aCB0aGUgVlMgdW5pdCBidXN5KSB3aGVuIHRvbGQgdG8g Zm9yY2UgcmVzdG9yZSB0aGUgY3VycmVudApjb250ZXh0LiBXZSBjYW4gc2ltcGx5IHdvcmthcm91 bmQgdGhpcyBieSBzdWJzdGl0dXRpbmcgdGhlCk1JX0ZPUkNFX1JFU1RPUkUgZmxhZyB3aXRoIGEg cm91bmQtdHJpcCB0aHJvdWdoIHRoZSBrZXJuZWxfY29udGV4dCwKZm9yY2luZyB0aGUgY29udGV4 dCB0byBiZSBzYXZlZCBhbmQgcmVzdG9yZWQ7IHRoZXJlYnkgcmVsb2FkaW5nIHRoZQpQUF9ESVIg cmVnaXN0ZXJzIGFuZCB1cGRhdGluZyB0aGUgbW9kaWZpZWQgcGFnZSBkaXJlY3RvcnkhCgp2Mjog VW5kbyBhdHRlbXB0ZWQgb3B0aW1pc2F0aW9uIGluIGNhbGxlciAoVHZydGtvKQoKU2lnbmVkLW9m Zi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+CkNjOiBKb29uYXMg TGFodGluZW4gPGpvb25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+CkNjOiBNaWthIEt1b3Bw YWxhIDxtaWthLmt1b3BwYWxhQGxpbnV4LmludGVsLmNvbT4KQ2M6IE1hdHRoZXcgQXVsZCA8bWF0 dGhldy53aWxsaWFtLmF1bGRAZ21haWwuY29tPgpDYzogVHZydGtvIFVyc3VsaW4gPHR2cnRrby51 cnN1bGluQGludGVsLmNvbT4KUmV2aWV3ZWQtYnk6IEpvb25hcyBMYWh0aW5lbiA8am9vbmFzLmxh aHRpbmVuQGxpbnV4LmludGVsLmNvbT4KUmV2aWV3ZWQtYnk6IE1pa2EgS3VvcHBhbGEgPG1pa2Eu a3VvcHBhbGFAbGludXguaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X3JpbmdidWZmZXIuYyB8IDI3ICsrKysrKysrKysrKysrKysrKysrKysrKysKIDEgZmlsZSBjaGFu Z2VkLCAyNyBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfcmluZ2J1ZmZlci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZl ci5jCmluZGV4IDY1ODExZTJmYTdkYS4uMzkxMDhkOGRjZWM1IDEwMDY0NAotLS0gYS9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfcmluZ2J1ZmZlci5jCkBAIC0xNDU4LDYgKzE0NTgsNyBAQCBzdGF0aWMgaW5saW5l IGludCBtaV9zZXRfY29udGV4dChzdHJ1Y3QgaTkxNV9yZXF1ZXN0ICpycSwgdTMyIGZsYWdzKQog CQkoSEFTX0xFR0FDWV9TRU1BUEhPUkVTKGk5MTUpICYmIElTX0dFTjcoaTkxNSkpID8KIAkJSU5U RUxfSU5GTyhpOTE1KS0+bnVtX3JpbmdzIC0gMSA6CiAJCTA7CisJYm9vbCBmb3JjZV9yZXN0b3Jl ID0gZmFsc2U7CiAJaW50IGxlbjsKIAl1MzIgKmNzOwogCkBAIC0xNDcxLDYgKzE0NzIsMTIgQEAg c3RhdGljIGlubGluZSBpbnQgbWlfc2V0X2NvbnRleHQoc3RydWN0IGk5MTVfcmVxdWVzdCAqcnEs IHUzMiBmbGFncykKIAlsZW4gPSA0OwogCWlmIChJU19HRU43KGk5MTUpKQogCQlsZW4gKz0gMiAr IChudW1fcmluZ3MgPyA0Km51bV9yaW5ncyArIDYgOiAwKTsKKwlpZiAoZmxhZ3MgJiBNSV9GT1JD RV9SRVNUT1JFKSB7CisJCUdFTV9CVUdfT04oZmxhZ3MgJiBNSV9SRVNUT1JFX0lOSElCSVQpOwor CQlmbGFncyAmPSB+TUlfRk9SQ0VfUkVTVE9SRTsKKwkJZm9yY2VfcmVzdG9yZSA9IHRydWU7CisJ CWxlbiArPSAyOworCX0KIAogCWNzID0gaW50ZWxfcmluZ19iZWdpbihycSwgbGVuKTsKIAlpZiAo SVNfRVJSKGNzKSkKQEAgLTE0OTUsNiArMTUwMiwyNiBAQCBzdGF0aWMgaW5saW5lIGludCBtaV9z ZXRfY29udGV4dChzdHJ1Y3QgaTkxNV9yZXF1ZXN0ICpycSwgdTMyIGZsYWdzKQogCQl9CiAJfQog CisJaWYgKGZvcmNlX3Jlc3RvcmUpIHsKKwkJLyoKKwkJICogVGhlIEhXIGRvZXNuJ3QgaGFuZGxl IGJlaW5nIHRvbGQgdG8gcmVzdG9yZSB0aGUgY3VycmVudAorCQkgKiBjb250ZXh0IHZlcnkgd2Vs bC4gUXVpdGUgb2Z0ZW4gaXQgbGlrZXMgZ29lcyB0byBnbyBvZmYgYW5kCisJCSAqIHN1bGssIGVz cGVjaWFsbHkgd2hlbiBpdCBpcyBtZWFudCB0byBiZSByZWxvYWRpbmcgUFBfRElSLgorCQkgKiBB IHZlcnkgc2ltcGxlIGZpeCB0byBmb3JjZSB0aGUgcmVsb2FkIGlzIHRvIHNpbXBseSBzd2l0Y2gK KwkJICogYXdheSBmcm9tIHRoZSBjdXJyZW50IGNvbnRleHQgYW5kIGJhY2sgYWdhaW4uCisJCSAq CisJCSAqIE5vdGUgdGhhdCB0aGUga2VybmVsX2NvbnRleHQgd2lsbCBjb250YWluIHJhbmRvbSBz dGF0ZQorCQkgKiBmb2xsb3dpbmcgdGhlIElOSElCSVRfUkVTVE9SRS4gV2UgYWNjZXB0IHRoaXMg c2luY2Ugd2UKKwkJICogbmV2ZXIgdXNlIHRoZSBrZXJuZWxfY29udGV4dCBzdGF0ZTsgaXQgaXMg bWVyZWx5IGEKKwkJICogcGxhY2Vob2xkZXIgd2UgdXNlIHRvIGZsdXNoIG90aGVyIGNvbnRleHRz LgorCQkgKi8KKwkJKmNzKysgPSBNSV9TRVRfQ09OVEVYVDsKKwkJKmNzKysgPSBpOTE1X2dndHRf b2Zmc2V0KHRvX2ludGVsX2NvbnRleHQoaTkxNS0+a2VybmVsX2NvbnRleHQsCisJCQkJCQkJICBl bmdpbmUpLT5zdGF0ZSkgfAorCQkJTUlfTU1fU1BBQ0VfR1RUIHwKKwkJCU1JX1JFU1RPUkVfSU5I SUJJVDsKKwl9CisKIAkqY3MrKyA9IE1JX05PT1A7CiAJKmNzKysgPSBNSV9TRVRfQ09OVEVYVDsK IAkqY3MrKyA9IGk5MTVfZ2d0dF9vZmZzZXQocnEtPmh3X2NvbnRleHQtPnN0YXRlKSB8IGZsYWdz OwotLSAKMi4xNy4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1n ZngK