From nobody Wed Dec 17 06:32:21 2025 Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 46105211472 for ; Tue, 11 Feb 2025 11:09:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739272176; cv=none; b=Lj6npzyKQOCTqUgvBkV+w73cm4V4J4DYsDUhdGY0oWDGNlOByWz7YAy1v/MJ/sQTvRwnW72e+PrFmJc6v5DqUk8On9x5rJAG336yt/68KeGNIZ8xK2c/jgDKwldLZRgHAWRpFwazxV4ge0n5NcqUYgJX37BzScFon7v0MQ9HrNI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739272176; c=relaxed/simple; bh=GOPu3z+1Nckku4odiaZ6fSKuOlCJkl3Rt7VV0rDsa+M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=h2uUOBKA/Dz/e+//RvmcIQ17XtzjPycbTui6/auD7ZrldqQLQR93T/VIomaWlQi+ToS+s+LDdGVC1HLr1TPzvnKGdXm4n9qXWsHEnPHXJCHIvHx1GzBeO+n+ZffglFjcBi/RrGQ2gAzJ4jZAlp9DpY6nn1iT+spjTZsI69jLWcM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=CYWLk5gB; arc=none smtp.client-ip=209.85.128.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CYWLk5gB" Received: by mail-wm1-f45.google.com with SMTP id 5b1f17b1804b1-43956e3863eso92235e9.2 for ; Tue, 11 Feb 2025 03:09:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1739272172; x=1739876972; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gz0YRk3ughu7e2CD68H5VgQs97KOCSbfd1nCJLxiUJ0=; b=CYWLk5gBUSnnNqpRH7HwDgOatiwu+wDYV6uAo3MqLaAzl9I9e39MBQUrXhDtztlkQM 5iluPXWsDiZqAZ4in8u1qHZgGPXXaY53zs55e7pUpFgPhpFOZjuxL1ELA7cEAe3WIEAA HnLrs0jzx4q1Pab418yR7/vFeRFkmzup8HHYWpeAkFrsE+nZxEdSHgX/Wdb6dN/IpbFX uxiXs82M1mSuHNa/hh4IFfjBq5CWaPHXJPcm4eK02rhZfTnPyzNImVoUdTloKl6ADwIN jMknnOycY8TE6fSqx/HpWqWpqw1C8CT3bCC+qytDz/Ls4wEYXC4KwPRX7xUfGPTI8Enr mNKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739272172; x=1739876972; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gz0YRk3ughu7e2CD68H5VgQs97KOCSbfd1nCJLxiUJ0=; b=k3IrBfpMFEJ7uInT+V4g5HyymAstg9W/LjyRi7Zco1D0h4A0gCeqbqWOIGOW2hdXo3 Bv6xHkf2lfuq1/Tq7GWPMwCdxfU+pcakMF5EyZSvwwjnhsjldsW5WbO9NoC9OJCMv64i ZPvzIpyX5oBTdHO9l3J7lnyY55kzY5VC+5a/Xzboj6s6jW7nNPADKBHoW/uqGNaz95d5 kE8OP4+467s4quERlDVxqHHr6zrIzi5M0FFfbycrhlFfsjg5pLzoNNpCuzFtsVGMW6CP 6nZc2PWzjKeZFYRmabGgkc0WYeJ8cGxbbMgN1wP1TMNsjfGZUgccldfVzW99jO2eU8jo JuKA== X-Forwarded-Encrypted: i=1; AJvYcCVRiO3mLQQR8n8IFlnKDMj9/2mYgKki+gzLAwHEeT6Zm6C6K5CKHNcOehjRh0lAvsnhx+m6e7ePDyiA3iA=@vger.kernel.org X-Gm-Message-State: AOJu0Yxa0VDNrp8c5oR0910auuMB4iRJONZDws+4qRpfPQ+6WFd+rHft klH9FKWqOEDFQ8YULAIMxa879U9pTmcRkK1hfnUmXg5Cfnq/qd9j X-Gm-Gg: ASbGnctRNuHIjmNXJgqmlZjShX9KVRiI3nNopeARL90w+jH8UFo8wvViT+Im3fSRMZY /whsR47ZCPbAG6/FursA1Vm03Y9/NU/nCG5eonZtFo8aMyj8WLEUkMsrKDt5uqS3LoaA549D5yi aGSKOEHvVFPHYRJfHGkn6954iP5JwysNdUAhkCiYO+VlblRq8rC9SAU3wiyc3NLKVS4jQjPqLG5 Fww1eoyw+ijJMVJjN7m1F+Hn8oAn/y2ualfeMfahks9m+VXloCLnh6/++3q+xfg9GNvnjAB66Vk RL9Z02o3vOAPuwuO X-Google-Smtp-Source: AGHT+IFYyO9xkH4y9QLRvN5380Sr4o2mE2mFu7BIqe31z9dyETfPETCYymIayfCMHUazfsKp2PlPrw== X-Received: by 2002:a05:600c:4f8e:b0:434:a7e3:db5c with SMTP id 5b1f17b1804b1-43924989dbbmr183832195e9.11.1739272172196; Tue, 11 Feb 2025 03:09:32 -0800 (PST) Received: from fedora.. ([94.73.37.161]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38dcb55b7a5sm11814417f8f.14.2025.02.11.03.09.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Feb 2025 03:09:31 -0800 (PST) From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= To: louis.chauvet@bootlin.com Cc: hamohammed.sa@gmail.com, simona@ffwll.ch, melissa.srw@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= Subject: [PATCH v2 11/15] drm/vkms: Allow to attach planes and CRTCs Date: Tue, 11 Feb 2025 12:09:08 +0100 Message-ID: <20250211110912.15409-12-jose.exposito89@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250211110912.15409-1-jose.exposito89@gmail.com> References: <20250211110912.15409-1-jose.exposito89@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Add a list of possible CRTCs to the plane configuration and helpers to attach, detach and get the primary and cursor planes attached to a CRTC. Now that the default configuration has its planes and CRTC correctly attached, configure the output following the configuration. Co-developed-by: Louis Chauvet Signed-off-by: Louis Chauvet Signed-off-by: Jos=C3=A9 Exp=C3=B3sito --- .clang-format | 1 + drivers/gpu/drm/vkms/tests/vkms_config_test.c | 188 ++++++++++++++++++ drivers/gpu/drm/vkms/vkms_config.c | 147 ++++++++++++-- drivers/gpu/drm/vkms/vkms_config.h | 59 +++++- drivers/gpu/drm/vkms/vkms_output.c | 51 +++-- 5 files changed, 411 insertions(+), 35 deletions(-) diff --git a/.clang-format b/.clang-format index e7a901c3617d..6f944fa39841 100644 --- a/.clang-format +++ b/.clang-format @@ -692,6 +692,7 @@ ForEachMacros: - 'virtio_device_for_each_vq' - 'vkms_config_for_each_crtc' - 'vkms_config_for_each_plane' + - 'vkms_config_plane_for_each_possible_crtc' - 'while_for_each_ftrace_op' - 'xa_for_each' - 'xa_for_each_marked' diff --git a/drivers/gpu/drm/vkms/tests/vkms_config_test.c b/drivers/gpu/dr= m/vkms/tests/vkms_config_test.c index 59bd7baea923..505eebb07a52 100644 --- a/drivers/gpu/drm/vkms/tests/vkms_config_test.c +++ b/drivers/gpu/drm/vkms/tests/vkms_config_test.c @@ -87,6 +87,18 @@ static void vkms_config_test_default_config(struct kunit= *test) KUNIT_EXPECT_EQ(test, vkms_config_crtc_get_writeback(crtc_cfg), params->enable_writeback); =20 + list_for_each_entry(plane_cfg, &config->planes, link) { + struct vkms_config_crtc *possible_crtc; + int n_possible_crtcs =3D 0; + unsigned long idx =3D 0; + + xa_for_each(&plane_cfg->possible_crtcs, idx, possible_crtc) { + KUNIT_EXPECT_PTR_EQ(test, crtc_cfg, possible_crtc); + n_possible_crtcs++; + } + KUNIT_EXPECT_EQ(test, n_possible_crtcs, 1); + } + KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config)); =20 vkms_config_destroy(config); @@ -199,6 +211,8 @@ static void vkms_config_test_valid_plane_type(struct ku= nit *test) { struct vkms_config *config; struct vkms_config_plane *plane_cfg; + struct vkms_config_crtc *crtc_cfg; + int err; =20 config =3D vkms_config_default_create(false, false, false); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config); @@ -206,16 +220,26 @@ static void vkms_config_test_valid_plane_type(struct = kunit *test) plane_cfg =3D list_first_entry(&config->planes, typeof(*plane_cfg), link); vkms_config_destroy_plane(plane_cfg); =20 + crtc_cfg =3D list_first_entry(&config->crtcs, typeof(*crtc_cfg), link); + /* Invalid: No primary plane */ plane_cfg =3D vkms_config_create_plane(config); vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_OVERLAY); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config)); =20 /* Invalid: Multiple primary planes */ plane_cfg =3D vkms_config_create_plane(config); vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_PRIMARY); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + plane_cfg =3D vkms_config_create_plane(config); vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_PRIMARY); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config)); =20 /* Valid: One primary plane */ @@ -225,14 +249,50 @@ static void vkms_config_test_valid_plane_type(struct = kunit *test) /* Invalid: Multiple cursor planes */ plane_cfg =3D vkms_config_create_plane(config); vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_CURSOR); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + plane_cfg =3D vkms_config_create_plane(config); vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_CURSOR); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config)); =20 /* Valid: One primary and one cursor plane */ vkms_config_destroy_plane(plane_cfg); KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config)); =20 + /* Invalid: Second CRTC without primary plane */ + crtc_cfg =3D vkms_config_create_crtc(config); + KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config)); + + /* Valid: Second CRTC with a primary plane */ + plane_cfg =3D vkms_config_create_plane(config); + vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_PRIMARY); + err =3D vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config)); + + vkms_config_destroy(config); +} + +static void vkms_config_test_valid_plane_possible_crtcs(struct kunit *test) +{ + struct vkms_config *config; + struct vkms_config_plane *plane_cfg; + struct vkms_config_crtc *crtc_cfg; + + config =3D vkms_config_default_create(false, false, false); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config); + + plane_cfg =3D list_first_entry(&config->planes, typeof(*plane_cfg), link); + crtc_cfg =3D list_first_entry(&config->crtcs, typeof(*crtc_cfg), link); + + /* Invalid: Primary plane without a possible CRTC */ + vkms_config_plane_detach_crtc(plane_cfg, crtc_cfg); + KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config)); + vkms_config_destroy(config); } =20 @@ -259,6 +319,131 @@ static void vkms_config_test_invalid_crtc_number(stru= ct kunit *test) vkms_config_destroy(config); } =20 +static void vkms_config_test_plane_attach_crtc(struct kunit *test) +{ + struct vkms_config *config; + struct vkms_config_plane *overlay_cfg; + struct vkms_config_plane *primary_cfg; + struct vkms_config_plane *cursor_cfg; + struct vkms_config_crtc *crtc_cfg; + int err; + + config =3D vkms_config_create("test"); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config); + + overlay_cfg =3D vkms_config_create_plane(config); + vkms_config_plane_set_type(overlay_cfg, DRM_PLANE_TYPE_OVERLAY); + primary_cfg =3D vkms_config_create_plane(config); + vkms_config_plane_set_type(primary_cfg, DRM_PLANE_TYPE_PRIMARY); + cursor_cfg =3D vkms_config_create_plane(config); + vkms_config_plane_set_type(cursor_cfg, DRM_PLANE_TYPE_CURSOR); + + crtc_cfg =3D vkms_config_create_crtc(config); + + /* No primary or cursor planes */ + KUNIT_EXPECT_NULL(test, vkms_config_crtc_primary_plane(config, crtc_cfg)); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_cursor_plane(config, crtc_cfg)); + + /* Overlay plane, but no primary or cursor planes */ + err =3D vkms_config_plane_attach_crtc(overlay_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_primary_plane(config, crtc_cfg)); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_cursor_plane(config, crtc_cfg)); + + /* Primary plane, attaching it twice must fail */ + err =3D vkms_config_plane_attach_crtc(primary_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + err =3D vkms_config_plane_attach_crtc(primary_cfg, crtc_cfg); + KUNIT_EXPECT_NE(test, err, 0); + KUNIT_EXPECT_PTR_EQ(test, + vkms_config_crtc_primary_plane(config, crtc_cfg), + primary_cfg); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_cursor_plane(config, crtc_cfg)); + + /* Primary and cursor planes */ + err =3D vkms_config_plane_attach_crtc(cursor_cfg, crtc_cfg); + KUNIT_EXPECT_EQ(test, err, 0); + KUNIT_EXPECT_PTR_EQ(test, + vkms_config_crtc_primary_plane(config, crtc_cfg), + primary_cfg); + KUNIT_EXPECT_PTR_EQ(test, + vkms_config_crtc_cursor_plane(config, crtc_cfg), + cursor_cfg); + + /* Detach primary and destroy cursor plane */ + vkms_config_plane_detach_crtc(overlay_cfg, crtc_cfg); + vkms_config_plane_detach_crtc(primary_cfg, crtc_cfg); + vkms_config_destroy_plane(cursor_cfg); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_primary_plane(config, crtc_cfg)); + KUNIT_EXPECT_NULL(test, vkms_config_crtc_cursor_plane(config, crtc_cfg)); + + vkms_config_destroy(config); +} + +static void vkms_config_test_plane_get_possible_crtcs(struct kunit *test) +{ + struct vkms_config *config; + struct vkms_config_plane *plane_cfg1, *plane_cfg2; + struct vkms_config_crtc *crtc_cfg1, *crtc_cfg2; + struct vkms_config_crtc *possible_crtc; + unsigned long idx =3D 0; + int n_crtcs =3D 0; + int err; + + config =3D vkms_config_create("test"); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config); + + plane_cfg1 =3D vkms_config_create_plane(config); + plane_cfg2 =3D vkms_config_create_plane(config); + crtc_cfg1 =3D vkms_config_create_crtc(config); + crtc_cfg2 =3D vkms_config_create_crtc(config); + + /* No possible CRTCs */ + vkms_config_plane_for_each_possible_crtc(plane_cfg1, idx, possible_crtc) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + + vkms_config_plane_for_each_possible_crtc(plane_cfg2, idx, possible_crtc) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + + /* Plane 1 attached to CRTC 1 and 2 */ + err =3D vkms_config_plane_attach_crtc(plane_cfg1, crtc_cfg1); + KUNIT_EXPECT_EQ(test, err, 0); + err =3D vkms_config_plane_attach_crtc(plane_cfg1, crtc_cfg2); + KUNIT_EXPECT_EQ(test, err, 0); + + vkms_config_plane_for_each_possible_crtc(plane_cfg1, idx, possible_crtc) { + n_crtcs++; + if (possible_crtc !=3D crtc_cfg1 && possible_crtc !=3D crtc_cfg2) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + } + KUNIT_ASSERT_EQ(test, n_crtcs, 2); + n_crtcs =3D 0; + + vkms_config_plane_for_each_possible_crtc(plane_cfg2, idx, possible_crtc) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + + /* Plane 1 attached to CRTC 1 and plane 2 to CRTC 2 */ + vkms_config_plane_detach_crtc(plane_cfg1, crtc_cfg2); + vkms_config_plane_for_each_possible_crtc(plane_cfg1, idx, possible_crtc) { + n_crtcs++; + if (possible_crtc !=3D crtc_cfg1) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + } + KUNIT_ASSERT_EQ(test, n_crtcs, 1); + n_crtcs =3D 0; + + err =3D vkms_config_plane_attach_crtc(plane_cfg2, crtc_cfg2); + KUNIT_EXPECT_EQ(test, err, 0); + vkms_config_plane_for_each_possible_crtc(plane_cfg2, idx, possible_crtc) { + n_crtcs++; + if (possible_crtc !=3D crtc_cfg2) + KUNIT_FAIL(test, "Unexpected possible CRTC"); + } + KUNIT_ASSERT_EQ(test, n_crtcs, 1); + + vkms_config_destroy(config); +} + static struct kunit_case vkms_config_test_cases[] =3D { KUNIT_CASE(vkms_config_test_empty_config), KUNIT_CASE_PARAM(vkms_config_test_default_config, @@ -267,7 +452,10 @@ static struct kunit_case vkms_config_test_cases[] =3D { KUNIT_CASE(vkms_config_test_get_crtcs), KUNIT_CASE(vkms_config_test_invalid_plane_number), KUNIT_CASE(vkms_config_test_valid_plane_type), + KUNIT_CASE(vkms_config_test_valid_plane_possible_crtcs), KUNIT_CASE(vkms_config_test_invalid_crtc_number), + KUNIT_CASE(vkms_config_test_plane_attach_crtc), + KUNIT_CASE(vkms_config_test_plane_get_possible_crtcs), {} }; =20 diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms= _config.c index b08021e62c9f..d96f9e5f9b72 100644 --- a/drivers/gpu/drm/vkms/vkms_config.c +++ b/drivers/gpu/drm/vkms/vkms_config.c @@ -50,13 +50,20 @@ struct vkms_config *vkms_config_default_create(bool ena= ble_cursor, goto err_alloc; vkms_config_crtc_set_writeback(crtc_cfg, enable_writeback); =20 + if (vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg)) + goto err_alloc; + if (enable_overlay) { for (n =3D 0; n < NUM_OVERLAY_PLANES; n++) { plane_cfg =3D vkms_config_create_plane(config); if (IS_ERR(plane_cfg)) goto err_alloc; + vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_OVERLAY); + + if (vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg)) + goto err_alloc; } } =20 @@ -64,7 +71,11 @@ struct vkms_config *vkms_config_default_create(bool enab= le_cursor, plane_cfg =3D vkms_config_create_plane(config); if (IS_ERR(plane_cfg)) goto err_alloc; + vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_CURSOR); + + if (vkms_config_plane_attach_crtc(plane_cfg, crtc_cfg)) + goto err_alloc; } =20 return config; @@ -103,7 +114,8 @@ static bool valid_plane_number(struct vkms_config *conf= ig) return true; } =20 -static bool valid_plane_type(struct vkms_config *config) +static bool valid_planes_for_crtc(struct vkms_config *config, + struct vkms_config_crtc *crtc_cfg) { struct drm_device *dev =3D &config->dev->drm; struct vkms_config_plane *plane_cfg; @@ -111,24 +123,31 @@ static bool valid_plane_type(struct vkms_config *conf= ig) bool has_cursor_plane =3D false; =20 vkms_config_for_each_plane(config, plane_cfg) { + struct vkms_config_crtc *possible_crtc; + unsigned long idx =3D 0; enum drm_plane_type type; =20 type =3D vkms_config_plane_get_type(plane_cfg); =20 - if (type =3D=3D DRM_PLANE_TYPE_PRIMARY) { - if (has_primary_plane) { - drm_info(dev, "Multiple primary planes\n"); - return false; - } + vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) { + if (possible_crtc !=3D crtc_cfg) + continue; =20 - has_primary_plane =3D true; - } else if (type =3D=3D DRM_PLANE_TYPE_CURSOR) { - if (has_cursor_plane) { - drm_info(dev, "Multiple cursor planes\n"); - return false; - } + if (type =3D=3D DRM_PLANE_TYPE_PRIMARY) { + if (has_primary_plane) { + drm_info(dev, "Multiple primary planes\n"); + return false; + } =20 - has_cursor_plane =3D true; + has_primary_plane =3D true; + } else if (type =3D=3D DRM_PLANE_TYPE_CURSOR) { + if (has_cursor_plane) { + drm_info(dev, "Multiple cursor planes\n"); + return false; + } + + has_cursor_plane =3D true; + } } } =20 @@ -140,6 +159,21 @@ static bool valid_plane_type(struct vkms_config *confi= g) return true; } =20 +static bool valid_plane_possible_crtcs(struct vkms_config *config) +{ + struct drm_device *dev =3D &config->dev->drm; + struct vkms_config_plane *plane_cfg; + + vkms_config_for_each_plane(config, plane_cfg) { + if (xa_empty(&plane_cfg->possible_crtcs)) { + drm_info(dev, "All planes must have at least one possible CRTC\n"); + return false; + } + } + + return true; +} + static bool valid_crtc_number(struct vkms_config *config) { struct drm_device *dev =3D &config->dev->drm; @@ -156,15 +190,22 @@ static bool valid_crtc_number(struct vkms_config *con= fig) =20 bool vkms_config_is_valid(struct vkms_config *config) { + struct vkms_config_crtc *crtc_cfg; + if (!valid_plane_number(config)) return false; =20 if (!valid_crtc_number(config)) return false; =20 - if (!valid_plane_type(config)) + if (!valid_plane_possible_crtcs(config)) return false; =20 + vkms_config_for_each_crtc(config, crtc_cfg) { + if (!valid_planes_for_crtc(config, crtc_cfg)) + return false; + } + return true; } =20 @@ -214,6 +255,7 @@ struct vkms_config_plane *vkms_config_create_plane(stru= ct vkms_config *config) return ERR_PTR(-ENOMEM); =20 vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_OVERLAY); + xa_init_flags(&plane_cfg->possible_crtcs, XA_FLAGS_ALLOC); =20 list_add_tail(&plane_cfg->link, &config->planes); =20 @@ -222,10 +264,39 @@ struct vkms_config_plane *vkms_config_create_plane(st= ruct vkms_config *config) =20 void vkms_config_destroy_plane(struct vkms_config_plane *plane_cfg) { + xa_destroy(&plane_cfg->possible_crtcs); list_del(&plane_cfg->link); kfree(plane_cfg); } =20 +int __must_check vkms_config_plane_attach_crtc(struct vkms_config_plane *p= lane_cfg, + struct vkms_config_crtc *crtc_cfg) +{ + struct vkms_config_crtc *possible_crtc; + unsigned long idx =3D 0; + u32 crtc_idx =3D 0; + + vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) { + if (possible_crtc =3D=3D crtc_cfg) + return -EINVAL; + } + + return xa_alloc(&plane_cfg->possible_crtcs, &crtc_idx, crtc_cfg, + xa_limit_32b, GFP_KERNEL); +} + +void vkms_config_plane_detach_crtc(struct vkms_config_plane *plane_cfg, + struct vkms_config_crtc *crtc_cfg) +{ + struct vkms_config_crtc *possible_crtc; + unsigned long idx =3D 0; + + vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) { + if (possible_crtc =3D=3D crtc_cfg) + xa_erase(&plane_cfg->possible_crtcs, idx); + } +} + struct vkms_config_crtc *vkms_config_create_crtc(struct vkms_config *confi= g) { struct vkms_config_crtc *crtc_cfg; @@ -244,6 +315,54 @@ struct vkms_config_crtc *vkms_config_create_crtc(struc= t vkms_config *config) void vkms_config_destroy_crtc(struct vkms_config *config, struct vkms_config_crtc *crtc_cfg) { + struct vkms_config_plane *plane_cfg; + + vkms_config_for_each_plane(config, plane_cfg) + vkms_config_plane_detach_crtc(plane_cfg, crtc_cfg); + list_del(&crtc_cfg->link); kfree(crtc_cfg); } + +/** + * vkms_config_crtc_get_plane() - Return the first attached plane to a CRT= C with + * the specific type + * @config: Configuration containing the CRTC and the plane + * @crtc_cfg: Only find planes attached to this CRTC + * @type: Plane type to search + * + * Returns: + * The first plane found attached to @crtc_cfg with the type @type. + */ +static struct vkms_config_plane *vkms_config_crtc_get_plane(const struct v= kms_config *config, + struct vkms_config_crtc *crtc_cfg, + enum drm_plane_type type) +{ + struct vkms_config_plane *plane_cfg; + struct vkms_config_crtc *possible_crtc; + enum drm_plane_type current_type; + unsigned long idx =3D 0; + + vkms_config_for_each_plane(config, plane_cfg) { + current_type =3D vkms_config_plane_get_type(plane_cfg); + + vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) { + if (possible_crtc =3D=3D crtc_cfg && current_type =3D=3D type) + return plane_cfg; + } + } + + return NULL; +} + +struct vkms_config_plane *vkms_config_crtc_primary_plane(const struct vkms= _config *config, + struct vkms_config_crtc *crtc_cfg) +{ + return vkms_config_crtc_get_plane(config, crtc_cfg, DRM_PLANE_TYPE_PRIMAR= Y); +} + +struct vkms_config_plane *vkms_config_crtc_cursor_plane(const struct vkms_= config *config, + struct vkms_config_crtc *crtc_cfg) +{ + return vkms_config_crtc_get_plane(config, crtc_cfg, DRM_PLANE_TYPE_CURSOR= ); +} diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms= _config.h index 0f5937b44948..0fe0ded1d8e4 100644 --- a/drivers/gpu/drm/vkms/vkms_config.h +++ b/drivers/gpu/drm/vkms/vkms_config.h @@ -5,6 +5,7 @@ =20 #include #include +#include =20 #include "vkms_drv.h" =20 @@ -12,14 +13,12 @@ * struct vkms_config - General configuration for VKMS driver * * @dev_name: Name of the device - * @writeback: If true, a writeback buffer can be attached to the CRTC * @planes: List of planes configured for the device * @crtcs: List of CRTCs configured for the device * @dev: Used to store the current VKMS device. Only set when the device i= s instantiated. */ struct vkms_config { const char *dev_name; - bool writeback; struct list_head planes; struct list_head crtcs; struct vkms_device *dev; @@ -31,6 +30,7 @@ struct vkms_config { * @link: Link to the others planes in vkms_config * @type: Type of the plane. The creator of configuration needs to ensures= that * at least one primary plane is present. + * @possible_crtcs: Array of CRTCs that can be used with this plane * @plane: Internal usage. This pointer should never be considered as vali= d. * It can be used to store a temporary reference to a VKMS plane d= uring * device creation. This pointer is not managed by the configurati= on and @@ -40,6 +40,7 @@ struct vkms_config_plane { struct list_head link; =20 enum drm_plane_type type; + struct xarray possible_crtcs; =20 /* Internal usage */ struct vkms_plane *plane; @@ -80,6 +81,16 @@ struct vkms_config_crtc { #define vkms_config_for_each_crtc(config, crtc_cfg) \ list_for_each_entry((crtc_cfg), &(config)->crtcs, link) =20 +/** + * vkms_config_plane_for_each_possible_crtc - Iterate over the vkms_config= _plane + * possible CRTCs + * @plane_cfg: &struct vkms_config_plane pointer + * @idx: Index of the cursor + * @possible_crtc: &struct vkms_config_crtc pointer used as cursor + */ +#define vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_= crtc) \ + xa_for_each(&(plane_cfg)->possible_crtcs, idx, (possible_crtc)) + /** * vkms_config_create() - Create a new VKMS configuration * @dev_name: Name of the device @@ -187,6 +198,22 @@ vkms_config_plane_set_type(struct vkms_config_plane *p= lane_cfg, plane_cfg->type =3D type; } =20 +/** + * vkms_config_plane_attach_crtc - Attach a plane to a CRTC + * @plane_cfg: Plane to attach + * @crtc_cfg: CRTC to attach @plane_cfg to + */ +int __must_check vkms_config_plane_attach_crtc(struct vkms_config_plane *p= lane_cfg, + struct vkms_config_crtc *crtc_cfg); + +/** + * vkms_config_plane_attach_crtc - Detach a plane from a CRTC + * @plane_cfg: Plane to detach + * @crtc_cfg: CRTC to detach @plane_cfg from + */ +void vkms_config_plane_detach_crtc(struct vkms_config_plane *plane_cfg, + struct vkms_config_crtc *crtc_cfg); + /** * vkms_config_create_crtc() - Add a new CRTC configuration * @config: Configuration to add the CRTC to @@ -227,4 +254,32 @@ vkms_config_crtc_set_writeback(struct vkms_config_crtc= *crtc_cfg, crtc_cfg->writeback =3D writeback; } =20 +/** + * vkms_config_crtc_primary_plane() - Return the primary plane for a CRTC + * @config: Configuration containing the CRTC + * @crtc_config: Target CRTC + * + * Note that, if multiple primary planes are found, the first one is retur= ned. + * In this case, the configuration will be invalid. See vkms_config_is_val= id(). + * + * Returns: + * The primary plane or NULL if none is assigned yet. + */ +struct vkms_config_plane *vkms_config_crtc_primary_plane(const struct vkms= _config *config, + struct vkms_config_crtc *crtc_cfg); + +/** + * vkms_config_crtc_cursor_plane() - Return the cursor plane for a CRTC + * @config: Configuration containing the CRTC + * @crtc_config: Target CRTC + * + * Note that, if multiple cursor planes are found, the first one is return= ed. + * In this case, the configuration will be invalid. See vkms_config_is_val= id(). + * + * Returns: + * The cursor plane or NULL if none is assigned yet. + */ +struct vkms_config_plane *vkms_config_crtc_cursor_plane(const struct vkms_= config *config, + struct vkms_config_crtc *crtc_cfg); + #endif /* _VKMS_CONFIG_H_ */ diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms= _output.c index 08ea691db299..f63bc8e3014b 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -10,9 +10,8 @@ int vkms_output_init(struct vkms_device *vkmsdev) struct drm_device *dev =3D &vkmsdev->drm; struct vkms_connector *connector; struct drm_encoder *encoder; - struct vkms_output *output; - struct vkms_plane *primary =3D NULL, *cursor =3D NULL; struct vkms_config_plane *plane_cfg; + struct vkms_config_crtc *crtc_cfg; int ret; int writeback; =20 @@ -29,18 +28,37 @@ int vkms_output_init(struct vkms_device *vkmsdev) DRM_DEV_ERROR(dev->dev, "Failed to init vkms plane\n"); return PTR_ERR(plane_cfg->plane); } + } + + vkms_config_for_each_crtc(vkmsdev->config, crtc_cfg) { + struct vkms_config_plane *primary, *cursor; + + primary =3D vkms_config_crtc_primary_plane(vkmsdev->config, crtc_cfg); + cursor =3D vkms_config_crtc_cursor_plane(vkmsdev->config, crtc_cfg); =20 - if (type =3D=3D DRM_PLANE_TYPE_PRIMARY) - primary =3D plane_cfg->plane; - else if (type =3D=3D DRM_PLANE_TYPE_CURSOR) - cursor =3D plane_cfg->plane; + crtc_cfg->crtc =3D vkms_crtc_init(dev, &primary->plane->base, + cursor ? &cursor->plane->base : NULL); + if (IS_ERR(crtc_cfg->crtc)) { + DRM_ERROR("Failed to allocate CRTC\n"); + return PTR_ERR(crtc_cfg->crtc); + } + + /* Initialize the writeback component */ + if (vkms_config_crtc_get_writeback(crtc_cfg)) { + writeback =3D vkms_enable_writeback_connector(vkmsdev, crtc_cfg->crtc); + if (writeback) + DRM_ERROR("Failed to init writeback connector\n"); + } } =20 - output =3D vkms_crtc_init(dev, &primary->base, - cursor ? &cursor->base : NULL); - if (IS_ERR(output)) { - DRM_ERROR("Failed to allocate CRTC\n"); - return PTR_ERR(output); + vkms_config_for_each_plane(vkmsdev->config, plane_cfg) { + struct vkms_config_crtc *possible_crtc; + unsigned long idx =3D 0; + + vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) { + plane_cfg->plane->base.possible_crtcs |=3D + drm_crtc_mask(&possible_crtc->crtc->crtc); + } } =20 connector =3D vkms_connector_init(vkmsdev); @@ -60,7 +78,9 @@ int vkms_output_init(struct vkms_device *vkmsdev) DRM_ERROR("Failed to init encoder\n"); return ret; } - encoder->possible_crtcs =3D drm_crtc_mask(&output->crtc); + + vkms_config_for_each_crtc(vkmsdev->config, crtc_cfg) + encoder->possible_crtcs =3D drm_crtc_mask(&crtc_cfg->crtc->crtc); =20 /* Attach the encoder and the connector */ ret =3D drm_connector_attach_encoder(&connector->base, encoder); @@ -69,13 +89,6 @@ int vkms_output_init(struct vkms_device *vkmsdev) return ret; } =20 - /* Initialize the writeback component */ - if (vkmsdev->config->writeback) { - writeback =3D vkms_enable_writeback_connector(vkmsdev, output); - if (writeback) - DRM_ERROR("Failed to init writeback connector\n"); - } - drm_mode_config_reset(dev); =20 return ret; --=20 2.48.1