From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kenneth Graunke Subject: [libdrm PATCH] intel: Make unsynchronized GTT mappings work on systems with snooping. Date: Fri, 10 Mar 2017 17:14:32 -0800 Message-ID: <20170311011432.28962-1-kenneth@whitecape.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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 Cc: mesa-dev@lists.freedesktop.org, Kenneth Graunke List-Id: intel-gfx@lists.freedesktop.org T24gc3lzdGVtcyB3aXRob3V0IExMQywgZHJtX2ludGVsX2dlbV9ib19tYXBfdW5zeW5jaHJvbml6 ZWQoKSBoYXMKaGFkIHRoZSBzdXJwcmlzaW5nIGJlaGF2aW9yIG9mIGRvaW5nIGEgc3luY2hyb25p emVkIEdUVCBtYXBwaW5nLgpUaGlzIGlzIG9idmlvdXNseSBub3Qgd2hhdCB0aGUgdXNlciBvZiB0 aGUgQVBJIHdhbnRlZC4KCkVyaWMgbGVmdCBhIGNvbW1lbnQgaW5kaWNhdGluZyBhIHZhbGlkIGNv bmNlcm46IGlmIHRoZSBDUFUgYW5kIEdQVQpjYWNoZXMgYXJlIGluY29oZXJlbnQsIHdlIGRvbid0 IGtlZXAgdHJhY2sgb2Ygd2hlcmUgdGhlIHVzZXIgbGFzdAptYXBwZWQgdGhlIGJ1ZmZlciwgYW5k IHdoYXQgY2FjaGVzIG1pZ2h0IGNvbnRhaW4gcmVsZXZhbnQgZGF0YS4KCk1vZGVybiBBdG9tIHN5 c3RlbXMgc3RpbGwgZG9uJ3QgaGF2ZSBMTEMsIGJ1dCB0aGV5IGRvIG9mZmVyIHNub29waW5nLAp3 aGljaCBlZmZlY3RpdmVseSBtYWtlcyB0aGUgY2FjaGVzIGNvaGVyZW50LiAgVGhlIGtlcm5lbCBh cHBlYXJzIHRvCnNldCB1cCB0aGUgUFRFL1BQQVQgdG8gZW5hYmxlIHNub29waW5nIGZvciBldmVy eXRoaW5nIHdoZXJlIHRoZSBjYWNoZQpsZXZlbCBpcyBub3QgSTkxNV9DQUNIRV9OT05FLiAgQXMg ZmFyIGFzIEkga25vdywgb25seSBzY2Fub3V0IGJ1ZmZlcnMKYXJlIG1hcmtlZCBhcyB1bmNhY2hl ZC4KCkFueSBidWZmZXJzIHVzZWQgYnkgc2Nhbm91dCBzaG91bGQgYmUgZmxhZ2dlZCBhcyBub24t cmV1c2FibGUgd2l0aApkcm1faW50ZWxfYm9fZGlzYWJsZV9yZXVzZSgpLCBwcmltZSBleHBvcnQs IG9yIGZsaW5rLiAgU28sIHdlIGNhbgphc3N1bWUgdGhhdCBhbnkgcmV1c2FibGUgYnVmZmVyIHNo b3VsZCBiZSBzbm9vcGVkLgoKVGhpcyBwYXRjaCBlbmFibGVzIHVuc3luY2hyb25pemVkIG1hcHBp bmdzIGZvciByZXVzYWJsZSBidWZmZXJzCm9uIGFsbCBHZW42KyBoYXJkd2FyZSAod2hpY2ggaGF2 ZSBlaXRoZXIgTExDIG9yIHNub29waW5nKS4KCk9uIEJyb3h0b24sIHRoaXMgaW1wcm92ZXMgdGhl IHBlcmZvcm1hbmNlIG9mIFVuaWdpbmUgVmFsbGV5IDEuMApvbiBMb3cgc2V0dGluZ3MgYXQgMTI4 MHg3MjAgYnkgYWJvdXQgNDUlLCBhbmQgVW5pZ2luZSBIZWF2ZW4gNC4wCihzYW1lIHNldHRpbmdz KSBieSBhYm91dCA1MyUuCgpTaWduZWQtb2ZmLWJ5OiBLZW5uZXRoIEdyYXVua2UgPGtlbm5ldGhA d2hpdGVjYXBlLm9yZz4KQ2M6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVr PgpDYzogbWVzYS1kZXZAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCi0tLQogaW50ZWwvaW50ZWxfYnVm bWdyX2dlbS5jIHwgOCArKysrKy0tLQogMSBmaWxlIGNoYW5nZWQsIDUgaW5zZXJ0aW9ucygrKSwg MyBkZWxldGlvbnMoLSkKCkl0IGxvb2tzIGxpa2UgTWVzYSBhbmQgQmVpZ25ldCBhcmUgdGhlIG9u bHkgY2FsbGVycyBvZiB0aGlzIGZ1bmN0aW9uCihTTkEgYW5kIEFudmlsIGRvbid0IHVzZSBsaWJk cm0sIFVYQSBhbmQgdmFhcGkgZG9uJ3QgdXNlIHRoaXMgZnVuY3Rpb24uKQoKVGhpcyBwYXNzZWQg b3VyIGZ1bGwgYmFycmFnZSBvZiBQaWdsaXQvZEVRUC9HTENUUy9HTEVTQ1RTIHRlc3RpbmcuCmdu b21lLXNoZWxsIHN0aWxsIHdvcmtzLCBhcyBkb2VzIFVuaWdpbmUsIGFuZCBHTEJlbmNobWFyay4K CkkgaGF2ZW4ndCB0ZXN0ZWQgYW55IE9wZW5DTCB3b3JrbG9hZHMuCgpkaWZmIC0tZ2l0IGEvaW50 ZWwvaW50ZWxfYnVmbWdyX2dlbS5jIGIvaW50ZWwvaW50ZWxfYnVmbWdyX2dlbS5jCmluZGV4IGUy NjBmMmRjLi5mNTNmMWZjYyAxMDA2NDQKLS0tIGEvaW50ZWwvaW50ZWxfYnVmbWdyX2dlbS5jCisr KyBiL2ludGVsL2ludGVsX2J1Zm1ncl9nZW0uYwpAQCAtMTYzMCw5ICsxNjMwLDcgQEAgaW50CiBk cm1faW50ZWxfZ2VtX2JvX21hcF91bnN5bmNocm9uaXplZChkcm1faW50ZWxfYm8gKmJvKQogewog CWRybV9pbnRlbF9idWZtZ3JfZ2VtICpidWZtZ3JfZ2VtID0gKGRybV9pbnRlbF9idWZtZ3JfZ2Vt ICopIGJvLT5idWZtZ3I7Ci0jaWZkZWYgSEFWRV9WQUxHUklORAogCWRybV9pbnRlbF9ib19nZW0g KmJvX2dlbSA9IChkcm1faW50ZWxfYm9fZ2VtICopIGJvOwotI2VuZGlmCiAJaW50IHJldDsKIAog CS8qIElmIHRoZSBDUFUgY2FjaGUgaXNuJ3QgY29oZXJlbnQgd2l0aCB0aGUgR1RULCB0aGVuIHVz ZSBhCkBAIC0xNjQxLDggKzE2MzksMTIgQEAgZHJtX2ludGVsX2dlbV9ib19tYXBfdW5zeW5jaHJv bml6ZWQoZHJtX2ludGVsX2JvICpibykKIAkgKiB0ZXJtcyBvZiBkcm1faW50ZWxfYm9fbWFwIHZz IGRybV9pbnRlbF9nZW1fYm9fbWFwX2d0dCwgc28KIAkgKiB3ZSB3b3VsZCBwb3RlbnRpYWxseSBj b3JydXB0IHRoZSBidWZmZXIgZXZlbiB3aGVuIHRoZSB1c2VyCiAJICogZG9lcyByZWFzb25hYmxl IHRoaW5ncy4KKwkgKgorCSAqIFRoZSBjYWNoZXMgYXJlIGNvaGVyZW50IG9uIExMQyBwbGF0Zm9y bXMgb3Igc25vb3BpbmcgaXMgZW5hYmxlZAorCSAqIGZvciB0aGUgQk8uICBUaGUga2VybmVsIGVu YWJsZXMgc25vb3BpbmcgZm9yIG5vbi1zY2Fub3V0IChyZXVzYWJsZSkKKwkgKiBidWZmZXJzIG9u IG1vZGVybiBub24tTExDIHN5c3RlbXMuCiAJICovCi0JaWYgKCFidWZtZ3JfZ2VtLT5oYXNfbGxj KQorCWlmIChidWZtZ3JfZ2VtLT5nZW4gPCA2IHx8ICFib19nZW0tPnJldXNhYmxlKQogCQlyZXR1 cm4gZHJtX2ludGVsX2dlbV9ib19tYXBfZ3R0KGJvKTsKIAogCXB0aHJlYWRfbXV0ZXhfbG9jaygm YnVmbWdyX2dlbS0+bG9jayk7Ci0tIAoyLjEyLjAKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxp c3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2ludGVsLWdmeAo=