From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Summers, Stuart" Subject: Re: [PATCH i-g-t] i915/gem_ctx_param: Keep the engine active while peeking at vm layout Date: Mon, 25 Nov 2019 18:45:17 +0000 Message-ID: <55f0000680207e5f59925a8a74dcaea7397e29ee.camel@intel.com> References: <20191124112756.1401928-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0687861992==" Return-path: In-Reply-To: <20191124112756.1401928-1-chris@chris-wilson.co.uk> Content-Language: en-US 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" , "chris@chris-wilson.co.uk" Cc: "igt-dev@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org --===============0687861992== Content-Language: en-US Content-Type: multipart/signed; micalg=sha-1; protocol="application/x-pkcs7-signature"; boundary="=-gubM+xNFBwCBntI8a+XU" --=-gubM+xNFBwCBntI8a+XU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, 2019-11-24 at 11:27 +0000, Chris Wilson wrote: > The implicit soft-pinning we use to probe the vm layout using > execbuf, > depends on the batch remaining active (not retired) between execbufs. > Naturally, if the background retire worker runs the batch is retired > and > the implicit soft-pinning is free to use a fresh address. >=20 > Signed-off-by: Chris Wilson > --- > tests/i915/gem_ctx_param.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) >=20 > diff --git a/tests/i915/gem_ctx_param.c b/tests/i915/gem_ctx_param.c > index bd1ee3996..63e0db38d 100644 > --- a/tests/i915/gem_ctx_param.c > +++ b/tests/i915/gem_ctx_param.c > @@ -161,6 +161,7 @@ static void test_vm(int i915) > .param =3D I915_CONTEXT_PARAM_VM, > }; > uint32_t parent, child; > + igt_spin_t *spin; > =20 > /* > * Proving 2 contexts share the same GTT is quite tricky as we > have no > @@ -177,6 +178,15 @@ static void test_vm(int i915) > parent =3D gem_context_create(i915); > child =3D gem_context_create(i915); > =20 > + /* Create a background spinner to keep the engines busy */ > + spin =3D igt_spin_new(i915); > + for (int i =3D 0; i < 16; i++) { Why 16 here? > + spin->execbuf.rsvd1 =3D gem_context_create(i915); > + gem_context_set_priority(i915, spin->execbuf.rsvd1, > 1023); Can you make this 1023 a macro? Thanks, Stuart > + gem_execbuf(i915, &spin->execbuf); > + gem_context_destroy(i915, spin->execbuf.rsvd1); > + } > + > /* Using implicit soft-pinning */ > eb.rsvd1 =3D parent; > batch.offset =3D nonzero_offset; > @@ -226,6 +236,7 @@ static void test_vm(int i915) > gem_context_destroy(i915, child); > gem_vm_destroy(i915, arg.value); > =20 > + igt_spin_free(i915, spin); > gem_sync(i915, batch.handle); > gem_close(i915, batch.handle); > } --=-gubM+xNFBwCBntI8a+XU Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKcTCCBOsw ggPToAMCAQICEDabxALowUBS+21KC0JI8fcwDQYJKoZIhvcNAQEFBQAwbzELMAkGA1UEBhMCU0Ux FDASBgNVBAoTC0FkZFRydXN0IEFCMSYwJAYDVQQLEx1BZGRUcnVzdCBFeHRlcm5hbCBUVFAgTmV0 d29yazEiMCAGA1UEAxMZQWRkVHJ1c3QgRXh0ZXJuYWwgQ0EgUm9vdDAeFw0xMzEyMTEwMDAwMDBa Fw0yMDA1MzAxMDQ4MzhaMHkxCzAJBgNVBAYTAlVTMQswCQYDVQQIEwJDQTEUMBIGA1UEBxMLU2Fu 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VOZxOPK8YlKLFMiT5UgGAAAAAAAA --=-gubM+xNFBwCBntI8a+XU-- --===============0687861992== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4 --===============0687861992==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE241C432C0 for ; Mon, 25 Nov 2019 18:45:21 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CECB62082F for ; Mon, 25 Nov 2019 18:45:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CECB62082F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 584A189FAD; Mon, 25 Nov 2019 18:45:21 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 823D589FA6; Mon, 25 Nov 2019 18:45:19 +0000 (UTC) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Nov 2019 10:45:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,242,1571727600"; d="p7s'?scan'208";a="408404002" Received: from fmsmsx108.amr.corp.intel.com ([10.18.124.206]) by fmsmga005.fm.intel.com with ESMTP; 25 Nov 2019 10:45:18 -0800 Received: from fmsmsx155.amr.corp.intel.com (10.18.116.71) by FMSMSX108.amr.corp.intel.com (10.18.124.206) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 25 Nov 2019 10:45:18 -0800 Received: from fmsmsx106.amr.corp.intel.com ([169.254.5.77]) by FMSMSX155.amr.corp.intel.com ([169.254.5.120]) with mapi id 14.03.0439.000; Mon, 25 Nov 2019 10:45:17 -0800 From: "Summers, Stuart" To: "intel-gfx@lists.freedesktop.org" , "chris@chris-wilson.co.uk" Thread-Topic: [Intel-gfx] [PATCH i-g-t] i915/gem_ctx_param: Keep the engine active while peeking at vm layout Thread-Index: AQHVorpC77/k6m7ugESpDeDolQLy7KecwZoA Date: Mon, 25 Nov 2019 18:45:17 +0000 Message-ID: <55f0000680207e5f59925a8a74dcaea7397e29ee.camel@intel.com> References: <20191124112756.1401928-1-chris@chris-wilson.co.uk> In-Reply-To: <20191124112756.1401928-1-chris@chris-wilson.co.uk> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.165.21.197] MIME-Version: 1.0 Subject: Re: [Intel-gfx] [PATCH i-g-t] i915/gem_ctx_param: Keep the engine active while peeking at vm layout X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "igt-dev@lists.freedesktop.org" Content-Type: multipart/mixed; boundary="===============0687861992==" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Message-ID: <20191125184517.dUnnvWbQdqfOTvTpZ36mngRNJS4-T8Xj7mko1z55Tjc@z> --===============0687861992== Content-Language: en-US Content-Type: multipart/signed; micalg=sha-1; protocol="application/x-pkcs7-signature"; boundary="=-gubM+xNFBwCBntI8a+XU" --=-gubM+xNFBwCBntI8a+XU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, 2019-11-24 at 11:27 +0000, Chris Wilson wrote: > The implicit soft-pinning we use to probe the vm layout using > execbuf, > depends on the batch remaining active (not retired) between execbufs. > Naturally, if the background retire worker runs the batch is retired > and > the implicit soft-pinning is free to use a fresh address. >=20 > Signed-off-by: Chris Wilson > --- > tests/i915/gem_ctx_param.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) >=20 > diff --git a/tests/i915/gem_ctx_param.c b/tests/i915/gem_ctx_param.c > index bd1ee3996..63e0db38d 100644 > --- a/tests/i915/gem_ctx_param.c > +++ b/tests/i915/gem_ctx_param.c > @@ -161,6 +161,7 @@ static void test_vm(int i915) > .param =3D I915_CONTEXT_PARAM_VM, > }; > uint32_t parent, child; > + igt_spin_t *spin; > =20 > /* > * Proving 2 contexts share the same GTT is quite tricky as we > have no > @@ -177,6 +178,15 @@ static void test_vm(int i915) > parent =3D gem_context_create(i915); > child =3D gem_context_create(i915); > =20 > + /* Create a background spinner to keep the engines busy */ > + spin =3D igt_spin_new(i915); > + for (int i =3D 0; i < 16; i++) { Why 16 here? > + spin->execbuf.rsvd1 =3D gem_context_create(i915); > + gem_context_set_priority(i915, spin->execbuf.rsvd1, > 1023); Can you make this 1023 a macro? Thanks, Stuart > + gem_execbuf(i915, &spin->execbuf); > + gem_context_destroy(i915, spin->execbuf.rsvd1); > + } > + > /* Using implicit soft-pinning */ > eb.rsvd1 =3D parent; > batch.offset =3D nonzero_offset; > @@ -226,6 +236,7 @@ static void test_vm(int i915) > gem_context_destroy(i915, child); > gem_vm_destroy(i915, arg.value); > =20 > + igt_spin_free(i915, spin); > gem_sync(i915, batch.handle); > gem_close(i915, batch.handle); > } --=-gubM+xNFBwCBntI8a+XU Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKcTCCBOsw ggPToAMCAQICEDabxALowUBS+21KC0JI8fcwDQYJKoZIhvcNAQEFBQAwbzELMAkGA1UEBhMCU0Ux FDASBgNVBAoTC0FkZFRydXN0IEFCMSYwJAYDVQQLEx1BZGRUcnVzdCBFeHRlcm5hbCBUVFAgTmV0 d29yazEiMCAGA1UEAxMZQWRkVHJ1c3QgRXh0ZXJuYWwgQ0EgUm9vdDAeFw0xMzEyMTEwMDAwMDBa Fw0yMDA1MzAxMDQ4MzhaMHkxCzAJBgNVBAYTAlVTMQswCQYDVQQIEwJDQTEUMBIGA1UEBxMLU2Fu 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, Content-Type: multipart/mixed; boundary="===============2099887749==" Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: "intel-gfx@lists.freedesktop.org" , "chris@chris-wilson.co.uk" Cc: "igt-dev@lists.freedesktop.org" List-ID: --===============2099887749== Content-Language: en-US Content-Type: multipart/signed; micalg=sha-1; protocol="application/x-pkcs7-signature"; boundary="=-gubM+xNFBwCBntI8a+XU" --=-gubM+xNFBwCBntI8a+XU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, 2019-11-24 at 11:27 +0000, Chris Wilson wrote: > The implicit soft-pinning we use to probe the vm layout using > execbuf, > depends on the batch remaining active (not retired) between execbufs. > Naturally, if the background retire worker runs the batch is retired > and > the implicit soft-pinning is free to use a fresh address. >=20 > Signed-off-by: Chris Wilson > --- > tests/i915/gem_ctx_param.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) >=20 > diff --git a/tests/i915/gem_ctx_param.c b/tests/i915/gem_ctx_param.c > index bd1ee3996..63e0db38d 100644 > --- a/tests/i915/gem_ctx_param.c > +++ b/tests/i915/gem_ctx_param.c > @@ -161,6 +161,7 @@ static void test_vm(int i915) > .param =3D I915_CONTEXT_PARAM_VM, > }; > uint32_t parent, child; > + igt_spin_t *spin; > =20 > /* > * Proving 2 contexts share the same GTT is quite tricky as we > have no > @@ -177,6 +178,15 @@ static void test_vm(int i915) > parent =3D gem_context_create(i915); > child =3D gem_context_create(i915); > =20 > + /* Create a background spinner to keep the engines busy */ > + spin =3D igt_spin_new(i915); > + for (int i =3D 0; i < 16; i++) { Why 16 here? > + spin->execbuf.rsvd1 =3D gem_context_create(i915); > + gem_context_set_priority(i915, spin->execbuf.rsvd1, > 1023); Can you make this 1023 a macro? Thanks, Stuart > + gem_execbuf(i915, &spin->execbuf); > + gem_context_destroy(i915, spin->execbuf.rsvd1); > + } > + > /* Using implicit soft-pinning */ > eb.rsvd1 =3D parent; > batch.offset =3D nonzero_offset; > @@ -226,6 +236,7 @@ static void test_vm(int i915) > gem_context_destroy(i915, child); > gem_vm_destroy(i915, arg.value); > =20 > + igt_spin_free(i915, spin); > gem_sync(i915, batch.handle); > gem_close(i915, batch.handle); > } --=-gubM+xNFBwCBntI8a+XU Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKcTCCBOsw ggPToAMCAQICEDabxALowUBS+21KC0JI8fcwDQYJKoZIhvcNAQEFBQAwbzELMAkGA1UEBhMCU0Ux FDASBgNVBAoTC0FkZFRydXN0IEFCMSYwJAYDVQQLEx1BZGRUcnVzdCBFeHRlcm5hbCBUVFAgTmV0 d29yazEiMCAGA1UEAxMZQWRkVHJ1c3QgRXh0ZXJuYWwgQ0EgUm9vdDAeFw0xMzEyMTEwMDAwMDBa Fw0yMDA1MzAxMDQ4MzhaMHkxCzAJBgNVBAYTAlVTMQswCQYDVQQIEwJDQTEUMBIGA1UEBxMLU2Fu 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