From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: [PATCH 3/3] drm/i915/execlists: Suppress redundant preemption Date: Fri, 25 Jan 2019 22:05:19 +0000 Message-ID: <20190125220519.29099-3-chris@chris-wilson.co.uk> References: <20190125220519.29099-1-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 0EB5C6E0A4 for ; Fri, 25 Jan 2019 22:07:02 +0000 (UTC) In-Reply-To: <20190125220519.29099-1-chris@chris-wilson.co.uk> 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 T24gdW53aW5kaW5nIHRoZSBhY3RpdmUgcmVxdWVzdCB3ZSBnaXZlIGl0IGEgc21hbGwgKGxpbWl0 ZWQgdG8gaW50ZXJuYWwKcHJpb3JpdHkgbGV2ZWxzKSBib29zdCB0byBwcmV2ZW50IGl0IGZyb20g YmVpbmcgZ2F6dW1wZWQgYSBzZWNvbmQgdGltZS4KSG93ZXZlciwgdGhpcyBtZWFucyB0aGF0IGl0 IGNhbiBiZSBwcm9tb3RlZCB0byBhYm92ZSB0aGUgcmVxdWVzdCB0aGF0CnRyaWdnZXJlZCB0aGUg cHJlZW1wdGlvbiByZXF1ZXN0LCBjYXVzaW5nIGEgcHJlZW1wdC10by1pZGxlIGN5Y2xlIGZvciBu bwpjaGFuZ2UuIFdlIGNhbiBhdm9pZCB0aGlzIGlmIHdlIHRha2UgdGhlIGJvb3N0IGludG8gYWNj b3VudCB3aGVuCmNoZWNraW5nIGlmIHRoZSBwcmVlbXB0aW9uIHJlcXVlc3QgaXMgdmFsaWQuCgp2 MjogQWZ0ZXIgcHJlZW1wdGlvbiB0aGUgYWN0aXZlIHJlcXVlc3Qgd2lsbCBiZSBhZnRlciB0aGUg cHJlZW1wdGVlIGlmCnRoZXkgZW5kIHVwIHdpdGggZXF1YWwgcHJpb3JpdHkuCgpTaWduZWQtb2Zm LWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KLS0tCiBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYyB8IDM5ICsrKysrKysrKysrKysrKysrKysrKysrKysr KystLS0tCiAxIGZpbGUgY2hhbmdlZCwgMzUgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkK CmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYyBiL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2ludGVsX2xyYy5jCmluZGV4IGI0NGRiN2Q0OTU4NC4uOGY0OGYyZmMwN2Iy IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYworKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYwpAQCAtMTY0LDYgKzE2NCw4IEBACiAjZGVmaW5l IFdBX1RBSUxfRFdPUkRTIDIKICNkZWZpbmUgV0FfVEFJTF9CWVRFUyAoc2l6ZW9mKHUzMikgKiBX QV9UQUlMX0RXT1JEUykKIAorI2RlZmluZSBBQ1RJVkVfUFJJT1JJVFkgKEk5MTVfUFJJT1JJVFlf TkVXQ0xJRU5UKQorCiBzdGF0aWMgaW50IGV4ZWNsaXN0c19jb250ZXh0X2RlZmVycmVkX2FsbG9j KHN0cnVjdCBpOTE1X2dlbV9jb250ZXh0ICpjdHgsCiAJCQkJCSAgICBzdHJ1Y3QgaW50ZWxfZW5n aW5lX2NzICplbmdpbmUsCiAJCQkJCSAgICBzdHJ1Y3QgaW50ZWxfY29udGV4dCAqY2UpOwpAQCAt MTgyLDYgKzE4NCwzNCBAQCBzdGF0aWMgaW5saW5lIGludCBycV9wcmlvKGNvbnN0IHN0cnVjdCBp OTE1X3JlcXVlc3QgKnJxKQogCXJldHVybiBycS0+c2NoZWQuYXR0ci5wcmlvcml0eTsKIH0KIAor c3RhdGljIGlubGluZSBpbnQgYWN0aXZlX3ByaW8oY29uc3Qgc3RydWN0IGk5MTVfcmVxdWVzdCAq cnEpCit7CisJaW50IHByaW8gPSBycV9wcmlvKHJxKTsKKworCS8qCisJICogT24gdW53aW5kaW5n IHRoZSBhY3RpdmUgcmVxdWVzdCwgd2UgZ2l2ZSBpdCBhIHByaW9yaXR5IGJ1bXAKKwkgKiBlcXVp dmFsZW50IHRvIGEgZnJlc2hseSBzdWJtaXR0ZWQgcmVxdWVzdC4gVGhpcyBwcm90ZWN0cyBpdCBm cm9tCisJICogYmVpbmcgZ2F6dW1wZWQgYWdhaW4sIGJ1dCBpdCB3b3VsZCBiZSBwcmVmZXJhYmxl IGlmIHdlIGRpZG4ndAorCSAqIGxldCBpdCBiZSBnYXp1bXBlZCBpbiB0aGUgZmlyc3QgcGxhY2Uh CisJICoKKwkgKiBTZWUgX191bndpbmRfaW5jb21wbGV0ZV9yZXF1ZXN0cygpCisJICovCisJaWYg KChwcmlvICYgQUNUSVZFX1BSSU9SSVRZKSAhPSBBQ1RJVkVfUFJJT1JJVFkgJiYKKwkgICAgaTkx NV9yZXF1ZXN0X3N0YXJ0ZWQocnEpKSB7CisJCS8qCisJCSAqIEFmdGVyIHByZWVtcHRpb24sIHdl IGluc2VydCB0aGUgYWN0aXZlIHJlcXVlc3QgYXQgdGhlCisJCSAqIGVuZCBvZiB0aGUgbmV3IHBy aW9yaXR5IGxldmVsLiBUaGlzIG1lYW5zIHRoYXQgd2Ugd2lsbCBiZQorCQkgKiBfbG93ZXJfIHBy aW9yaXR5IHRoYW4gdGhlIHByZWVtcHRlZSBhbGwgdGhpbmdzIGVxdWFsIChhbmQKKwkJICogc28g dGhlIHByZWVtcHRpb24gaXMgdmFsaWQpLCBzbyBhZGp1c3Qgb3VyIGNvbXBhcmlzb24KKwkJICog YWNjb3JkaW5nbHkuCisJCSAqLworCQlwcmlvIHw9IEFDVElWRV9QUklPUklUWTsKKwkJcHJpby0t OworCX0KKworCXJldHVybiBwcmlvOworfQorCiBzdGF0aWMgaW50IHF1ZXVlX3ByaW8oY29uc3Qg c3RydWN0IGludGVsX2VuZ2luZV9leGVjbGlzdHMgKmV4ZWNsaXN0cykKIHsKIAlzdHJ1Y3QgaTkx NV9wcmlvbGlzdCAqcDsKQEAgLTIwNCw3ICsyMzQsNyBAQCBzdGF0aWMgaW5saW5lIGJvb2wgbmVl ZF9wcmVlbXB0KGNvbnN0IHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSwKIAkJCQlpbnQg aGludCkKIHsKIAljb25zdCBzdHJ1Y3QgaW50ZWxfY29udGV4dCAqY3R4ID0gcnEtPmh3X2NvbnRl eHQ7Ci0JY29uc3QgaW50IGxhc3RfcHJpbyA9IHJxX3ByaW8ocnEpOworCWludCBsYXN0X3ByaW87 CiAKIAlpZiAoIWludGVsX2VuZ2luZV9oYXNfcHJlZW1wdGlvbihlbmdpbmUpKQogCQlyZXR1cm4g ZmFsc2U7CkBAIC0yMTksNiArMjQ5LDcgQEAgc3RhdGljIGlubGluZSBib29sIG5lZWRfcHJlZW1w dChjb25zdCBzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUsCiAJICogcHJlZW1wdC4gSWYg dGhhdCBoaW50IGlzIHN0YWxlIG9yIHdlIG1heSBiZSB0cnlpbmcgdG8gcHJlZW1wdAogCSAqIG91 cnNlbHZlcywgaWdub3JlIHRoZSByZXF1ZXN0LgogCSAqLworCWxhc3RfcHJpbyA9IGFjdGl2ZV9w cmlvKHJxKTsKIAlpZiAoIV9fZXhlY2xpc3RzX25lZWRfcHJlZW1wdChoaW50LCBsYXN0X3ByaW8p KQogCQlyZXR1cm4gZmFsc2U7CiAKQEAgLTM0Niw3ICszNzcsNyBAQCBfX3Vud2luZF9pbmNvbXBs ZXRlX3JlcXVlc3RzKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSkKIHsKIAlzdHJ1Y3Qg aTkxNV9yZXF1ZXN0ICpycSwgKnJuLCAqYWN0aXZlID0gTlVMTDsKIAlzdHJ1Y3QgbGlzdF9oZWFk ICp1bmluaXRpYWxpemVkX3ZhcihwbCk7Ci0JaW50IHByaW8gPSBJOTE1X1BSSU9SSVRZX0lOVkFM SUQgfCBJOTE1X1BSSU9SSVRZX05FV0NMSUVOVDsKKwlpbnQgcHJpbyA9IEk5MTVfUFJJT1JJVFlf SU5WQUxJRCB8IEFDVElWRV9QUklPUklUWTsKIAogCWxvY2tkZXBfYXNzZXJ0X2hlbGQoJmVuZ2lu ZS0+dGltZWxpbmUubG9jayk7CiAKQEAgLTM3OCw4ICs0MDksOCBAQCBfX3Vud2luZF9pbmNvbXBs ZXRlX3JlcXVlc3RzKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSkKIAkgKiBzdHJlYW0s IHNvIGdpdmUgaXQgdGhlIGVxdWl2YWxlbnQgc21hbGwgcHJpb3JpdHkgYnVtcCB0byBwcmV2ZW50 CiAJICogaXQgYmVpbmcgZ2F6dW1wZWQgYSBzZWNvbmQgdGltZSBieSBhbm90aGVyIHBlZXIuCiAJ ICovCi0JaWYgKCEocHJpbyAmIEk5MTVfUFJJT1JJVFlfTkVXQ0xJRU5UKSkgewotCQlwcmlvIHw9 IEk5MTVfUFJJT1JJVFlfTkVXQ0xJRU5UOworCWlmICgocHJpbyAmIEFDVElWRV9QUklPUklUWSkg IT0gQUNUSVZFX1BSSU9SSVRZKSB7CisJCXByaW8gfD0gQUNUSVZFX1BSSU9SSVRZOwogCQlhY3Rp dmUtPnNjaGVkLmF0dHIucHJpb3JpdHkgPSBwcmlvOwogCQlsaXN0X21vdmVfdGFpbCgmYWN0aXZl LT5zY2hlZC5saW5rLAogCQkJICAgICAgIGk5MTVfc2NoZWRfbG9va3VwX3ByaW9saXN0KGVuZ2lu ZSwgcHJpbykpOwotLSAKMi4yMC4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9pbnRlbC1nZngK