From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH v3 05/16] gpu: host1x: Use direct DMA with IOMMU API usage Date: Fri, 1 Feb 2019 14:28:26 +0100 Message-ID: <20190201132837.12327-6-thierry.reding@gmail.com> References: <20190201132837.12327-1-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190201132837.12327-1-thierry.reding@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Thierry Reding Cc: linux-tegra@vger.kernel.org, Dmitry Osipenko , dri-devel@lists.freedesktop.org, Mikko Perttunen List-Id: linux-tegra@vger.kernel.org RnJvbTogVGhpZXJyeSBSZWRpbmcgPHRyZWRpbmdAbnZpZGlhLmNvbT4KCklmIHdlIHVzZSB0aGUg SU9NTVUgQVBJIGRpcmVjdGx5IHRvIG1hcCBidWZmZXJzIGludG8gaG9zdDF4JyBJT1ZBIHNwYWNl LAp3ZSBtdXN0IG1ha2Ugc3VyZSB0aGF0IHRoZSBETUEgQVBJIGRvZXNuJ3QgYWxyZWFkeSBzZXQg dXAgYSBtYXBwaW5nLCBvcgplbHNlIHRyYW5zbGF0aW9uIHdpbGwgZmFpbC4KClRoZSBkaXJlY3Qg RE1BIEFQSSBhbGxvd3MgdXMgdG8gYWxsb2NhdGUgbWVtb3J5IHRoYXQgd2lsbCBub3QgYmUgbWFw cGVkCnRocm91Z2ggYW4gSU9NTVUgYXV0b21hdGljYWxseS4KClJldmlld2VkLWJ5OiBEbWl0cnkg T3NpcGVua28gPGRpZ2V0eEBnbWFpbC5jb20+ClNpZ25lZC1vZmYtYnk6IFRoaWVycnkgUmVkaW5n IDx0cmVkaW5nQG52aWRpYS5jb20+Ci0tLQogZHJpdmVycy9ncHUvaG9zdDF4L2NkbWEuYyB8IDEx ICsrKysrKysrLS0tCiAxIGZpbGUgY2hhbmdlZCwgOCBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9u cygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2hvc3QxeC9jZG1hLmMgYi9kcml2ZXJzL2dw dS9ob3N0MXgvY2RtYS5jCmluZGV4IGUyZDEwNmZhM2MwYi4uYTk2YzRkZDFlNDQ5IDEwMDY0NAot LS0gYS9kcml2ZXJzL2dwdS9ob3N0MXgvY2RtYS5jCisrKyBiL2RyaXZlcnMvZ3B1L2hvc3QxeC9j ZG1hLmMKQEAgLTE5LDYgKzE5LDcgQEAKIAogI2luY2x1ZGUgPGFzbS9jYWNoZWZsdXNoLmg+CiAj aW5jbHVkZSA8bGludXgvZGV2aWNlLmg+CisjaW5jbHVkZSA8bGludXgvZG1hLWRpcmVjdC5oPgog I2luY2x1ZGUgPGxpbnV4L2RtYS1tYXBwaW5nLmg+CiAjaW5jbHVkZSA8bGludXgvaG9zdDF4Lmg+ CiAjaW5jbHVkZSA8bGludXgvaW50ZXJydXB0Lmg+CkBAIC03MCw2ICs3MSw3IEBAIHN0YXRpYyB2 b2lkIGhvc3QxeF9wdXNoYnVmZmVyX2Rlc3Ryb3koc3RydWN0IHB1c2hfYnVmZmVyICpwYikKICAq Lwogc3RhdGljIGludCBob3N0MXhfcHVzaGJ1ZmZlcl9pbml0KHN0cnVjdCBwdXNoX2J1ZmZlciAq cGIpCiB7CisJdW5zaWduZWQgbG9uZyBhdHRycyA9IERNQV9BVFRSX1dSSVRFX0NPTUJJTkU7CiAJ c3RydWN0IGhvc3QxeF9jZG1hICpjZG1hID0gcGJfdG9fY2RtYShwYik7CiAJc3RydWN0IGhvc3Qx eCAqaG9zdDF4ID0gY2RtYV90b19ob3N0MXgoY2RtYSk7CiAJc3RydWN0IGlvdmEgKmFsbG9jOwpA QCAtOTEsOCArOTMsOCBAQCBzdGF0aWMgaW50IGhvc3QxeF9wdXNoYnVmZmVyX2luaXQoc3RydWN0 IHB1c2hfYnVmZmVyICpwYikKIAogCQlzaXplID0gaW92YV9hbGlnbigmaG9zdDF4LT5pb3ZhLCBz aXplKTsKIAotCQlwYi0+bWFwcGVkID0gZG1hX2FsbG9jX3djKGhvc3QxeC0+ZGV2LCBzaXplLCAm cGItPnBoeXMsCi0JCQkJCSAgR0ZQX0tFUk5FTCk7CisJCXBiLT5tYXBwZWQgPSBkbWFfZGlyZWN0 X2FsbG9jKGhvc3QxeC0+ZGV2LCBzaXplLCAmcGItPnBoeXMsCisJCQkJCSAgICAgIEdGUF9LRVJO RUwsIGF0dHJzKTsKIAkJaWYgKCFwYi0+bWFwcGVkKQogCQkJcmV0dXJuIC1FTk9NRU07CiAKQEAg LTEyNyw3ICsxMjksMTAgQEAgc3RhdGljIGludCBob3N0MXhfcHVzaGJ1ZmZlcl9pbml0KHN0cnVj dCBwdXNoX2J1ZmZlciAqcGIpCiBpb21tdV9mcmVlX2lvdmE6CiAJX19mcmVlX2lvdmEoJmhvc3Qx eC0+aW92YSwgYWxsb2MpOwogaW9tbXVfZnJlZV9tZW06Ci0JZG1hX2ZyZWVfd2MoaG9zdDF4LT5k ZXYsIHNpemUsIHBiLT5tYXBwZWQsIHBiLT5waHlzKTsKKwlpZiAoaG9zdDF4LT5kb21haW4pCisJ CWRtYV9kaXJlY3RfZnJlZShob3N0MXgtPmRldiwgc2l6ZSwgcGItPm1hcHBlZCwgcGItPnBoeXMs IGF0dHJzKTsKKwllbHNlCisJCWRtYV9mcmVlX3djKGhvc3QxeC0+ZGV2LCBzaXplLCBwYi0+bWFw cGVkLCBwYi0+cGh5cyk7CiAKIAlyZXR1cm4gZXJyOwogfQotLSAKMi4xOS4xCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBs aXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK