From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH v3 09/16] gpu: host1x: Optimize CDMA push buffer memory usage Date: Fri, 1 Feb 2019 14:28:30 +0100 Message-ID: <20190201132837.12327-10-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 RnJvbTogVGhpZXJyeSBSZWRpbmcgPHRyZWRpbmdAbnZpZGlhLmNvbT4KClRoZSBob3N0MXggQ0RN QSBwdXNoIGJ1ZmZlciBpcyB0ZXJtaW5hdGVkIGJ5IGEgc3BlY2lhbCBvcGNvZGUgKFJFU1RBUlQp CnRoYXQgdGVsbHMgdGhlIENETUEgdG8gd3JhcCBhcm91bmQgdG8gdGhlIGJlZ2lubmluZyBvZiB0 aGUgcHVzaCBidWZmZXIuClRvIGFjY29tb2RhdGUgdGhlIFJFU1RBUlQgb3Bjb2RlLCBhbiBleHRy YSA0IGJ5dGVzIGFyZSBhbGxvY2F0ZWQgb24gdG9wCm9mIHRoZSA1MTIgKiA4ID0gNDA5NiBieXRl cyBuZWVkZWQgZm9yIHRoZSA1MTIgc2xvdHMgKDEgc2xvdCA9IDIgd29yZHMpCnRoYXQgYXJlIHVz ZWQgZm9yIG90aGVyIGNvbW1hbmRzIHBhc3NlZCB0byBDRE1BLiBUaGlzIHJlcXVpcmVzIHRoYXQg dHdvCm1lbW9yeSBwYWdlcyBhcmUgYWxsb2NhdGVkLCBidXQgbW9zdCBvZiB0aGUgc2Vjb25kIHBh Z2UgKDQwOTIgYnl0ZXMpIGlzCm5ldmVyIHVzZWQuCgpEZWNyZWFzZSB0aGUgbnVtYmVyIG9mIHNs b3RzIHRvIDUxMSBzbyB0aGF0IHRoZSBSRVNUQVJUIG9wY29kZSBmaXRzCndpdGhpbiB0aGUgcGFn ZS4gQWRqdXN0IHRoZSBwdXNoIGJ1ZmZlciB3cmFwYXJvdW5kIGNvZGUgdG8gdGFrZSBpbnRvCmFj Y291bnQgcHVzaCBidWZmZXIgc2l6ZXMgdGhhdCBhcmUgbm90IGEgcG93ZXIgb2YgdHdvLgoKU2ln bmVkLW9mZi1ieTogVGhpZXJyeSBSZWRpbmcgPHRyZWRpbmdAbnZpZGlhLmNvbT4KLS0tCiBkcml2 ZXJzL2dwdS9ob3N0MXgvY2RtYS5jIHwgMjkgKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0K IDEgZmlsZSBjaGFuZ2VkLCAyNSBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQoKZGlmZiAt LWdpdCBhL2RyaXZlcnMvZ3B1L2hvc3QxeC9jZG1hLmMgYi9kcml2ZXJzL2dwdS9ob3N0MXgvY2Rt YS5jCmluZGV4IGE5NmM0ZGQxZTQ0OS4uNTBjMTM3MGI1NmM3IDEwMDY0NAotLS0gYS9kcml2ZXJz L2dwdS9ob3N0MXgvY2RtYS5jCisrKyBiL2RyaXZlcnMvZ3B1L2hvc3QxeC9jZG1hLmMKQEAgLTQy LDcgKzQyLDE3IEBACiAgKiBtZWFucyB0aGF0IHRoZSBwdXNoIGJ1ZmZlciBpcyBmdWxsLCBub3Qg ZW1wdHkuCiAgKi8KIAotI2RlZmluZSBIT1NUMVhfUFVTSEJVRkZFUl9TTE9UUwk1MTIKKy8qCisg KiBUeXBpY2FsbHkgdGhlIGNvbW1hbmRzIHdyaXR0ZW4gaW50byB0aGUgcHVzaCBidWZmZXIgYXJl IGEgcGFpciBvZiB3b3Jkcy4gV2UKKyAqIHVzZSBzbG90cyB0byByZXByZXNlbnQgZWFjaCBvZiB0 aGVzZSBwYWlycyBhbmQgdG8gc2ltcGxpZnkgdGhpbmdzLiBOb3RlIHRoZQorICogc3RyYW5nZSBu dW1iZXIgb2Ygc2xvdHMgYWxsb2NhdGVkIGhlcmUuIDUxMiBzbG90cyB3aWxsIGZpdCBleGFjdGx5 IHdpdGhpbiBhCisgKiBzaW5nbGUgbWVtb3J5IHBhZ2UuIFdlIGFsc28gbmVlZCBvbmUgYWRkaXRp b25hbCB3b3JkIGF0IHRoZSBlbmQgb2YgdGhlIHB1c2gKKyAqIGJ1ZmZlciBmb3IgdGhlIFJFU1RB UlQgb3Bjb2RlIHRoYXQgd2lsbCBpbnN0cnVjdCB0aGUgQ0RNQSB0byBqdW1wIGJhY2sgdG8KKyAq IHRoZSBiZWdpbm5pbmcgb2YgdGhlIHB1c2ggYnVmZmVyLiBXaXRoIDUxMiBzbG90cywgdGhpcyBt ZWFucyB0aGF0IHdlJ2xsIHVzZQorICogMiBtZW1vcnkgcGFnZXMgYW5kIHdhc3RlIDQwOTIgYnl0 ZXMgb2YgdGhlIHNlY29uZCBwYWdlIHRoYXQgd2lsbCBuZXZlciBiZQorICogdXNlZC4KKyAqLwor I2RlZmluZSBIT1NUMVhfUFVTSEJVRkZFUl9TTE9UUwk1MTEKIAogLyoKICAqIENsZWFuIHVwIHB1 c2ggYnVmZmVyIHJlc291cmNlcwpAQCAtMTQ4LDcgKzE1OCwxMCBAQCBzdGF0aWMgdm9pZCBob3N0 MXhfcHVzaGJ1ZmZlcl9wdXNoKHN0cnVjdCBwdXNoX2J1ZmZlciAqcGIsIHUzMiBvcDEsIHUzMiBv cDIpCiAJV0FSTl9PTihwYi0+cG9zID09IHBiLT5mZW5jZSk7CiAJKihwKyspID0gb3AxOwogCSoo cCsrKSA9IG9wMjsKLQlwYi0+cG9zID0gKHBiLT5wb3MgKyA4KSAmIChwYi0+c2l6ZSAtIDEpOwor CXBiLT5wb3MgKz0gODsKKworCWlmIChwYi0+cG9zID49IHBiLT5zaXplKQorCQlwYi0+cG9zIC09 IHBiLT5zaXplOwogfQogCiAvKgpAQCAtMTU4LDcgKzE3MSwxMCBAQCBzdGF0aWMgdm9pZCBob3N0 MXhfcHVzaGJ1ZmZlcl9wdXNoKHN0cnVjdCBwdXNoX2J1ZmZlciAqcGIsIHUzMiBvcDEsIHUzMiBv cDIpCiBzdGF0aWMgdm9pZCBob3N0MXhfcHVzaGJ1ZmZlcl9wb3Aoc3RydWN0IHB1c2hfYnVmZmVy ICpwYiwgdW5zaWduZWQgaW50IHNsb3RzKQogewogCS8qIEFkdmFuY2UgdGhlIG5leHQgd3JpdGUg cG9zaXRpb24gKi8KLQlwYi0+ZmVuY2UgPSAocGItPmZlbmNlICsgc2xvdHMgKiA4KSAmIChwYi0+ c2l6ZSAtIDEpOworCXBiLT5mZW5jZSArPSBzbG90cyAqIDg7CisKKwlpZiAocGItPmZlbmNlID49 IHBiLT5zaXplKQorCQlwYi0+ZmVuY2UgLT0gcGItPnNpemU7CiB9CiAKIC8qCkBAIC0xNjYsNyAr MTgyLDEyIEBAIHN0YXRpYyB2b2lkIGhvc3QxeF9wdXNoYnVmZmVyX3BvcChzdHJ1Y3QgcHVzaF9i dWZmZXIgKnBiLCB1bnNpZ25lZCBpbnQgc2xvdHMpCiAgKi8KIHN0YXRpYyB1MzIgaG9zdDF4X3B1 c2hidWZmZXJfc3BhY2Uoc3RydWN0IHB1c2hfYnVmZmVyICpwYikKIHsKLQlyZXR1cm4gKChwYi0+ ZmVuY2UgLSBwYi0+cG9zKSAmIChwYi0+c2l6ZSAtIDEpKSAvIDg7CisJdW5zaWduZWQgaW50IGZl bmNlID0gcGItPmZlbmNlOworCisJaWYgKHBiLT5mZW5jZSA8IHBiLT5wb3MpCisJCWZlbmNlICs9 IHBiLT5zaXplOworCisJcmV0dXJuIChmZW5jZSAtIHBiLT5wb3MpIC8gODsKIH0KIAogLyoKLS0g CjIuMTkuMQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==