From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (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 4D775471CEA; Tue, 18 Aug 2026 12:51:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787057482; cv=none; b=sA/vzJH7FFaaFGYJ0jJJCS0Fqh0iWWYeoJBtpJaKNgnqYsGIrTzlmd66+ULyhRDgCsNPunN+BGb3tuwngGcu8L5fQ1jnREWt+sGFxYX9yo3ZYdjyVJuutV15zfmM/wxROowBKGSx0GnBHF51VABX8MknvoNmKFnHdENGA2KR9Uk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787057482; c=relaxed/simple; bh=WIpzugkwyTCbJq8D2j3q84rB9v4xNDeV0FBP7EfpAmg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=M+S7ARzqLryK66UNGtMdxc99/97sgSBHEEjvZj7Vco+y89DiEN+ZH6OP5kcuxUbkAHx3ytHw+JpsV9vPJV3PMm4LhTjJus7IkuL4kxD/ZN0w/o95Fa/MiM9Z5vp6QqEJnn5xgqKrXGNqA2zSISjpBufvSNYl4yt9A3GQG9YTeLk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id CEDDC8459B; Tue, 18 Aug 2026 12:50:23 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 59A74362E; Tue, 18 Aug 2026 12:50:23 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id EAVeFA9VhGojIAAAD6G6ig (envelope-from ); Tue, 18 Aug 2026 12:50:23 +0000 From: Thomas Zimmermann To: jfalempe@redhat.com, javierm@redhat.com, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org Cc: dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, amd-gfx@lists.freedesktop.org, rust-for-linux@vger.kernel.org, linux-hyperv@vger.kernel.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, nouveau@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, virtualization@lists.linux.dev, sashiko-reviews@lists.linux.dev, Thomas Zimmermann Subject: [PATCH 12/12] drm/panic: Compile KUnit tests as module Date: Tue, 18 Aug 2026 14:28:10 +0200 Message-ID: <20260818125012.468092-13-tzimmermann@suse.de> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260818125012.468092-1-tzimmermann@suse.de> References: <20260818125012.468092-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spam-Flag: NO X-Spam-Score: -4.00 X-Spam-Level: X-Rspamd-Queue-Id: CEDDC8459B X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLqtkr6cif1ebgurukgmwdm7xc)] X-Rspamd-Action: no action Fix dependency of the panic-helper KUnit tests on CONFIG_DRM_KUNIT_TEST=y and make them build as a module. Export the necessary interfaces from the panic helpers iff the KUnit framework has been enabled. Select DRM_PANIC_HELPER from DRM_KUNIT_TEST to meet the dependencies of the panic-helper tests. It is now possible to run the tests by modprobing drm_panic_helper_test.ko at runtime. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/Kconfig.debug | 1 + drivers/gpu/drm/drm_panic_helper.c | 26 ++++++++++--------- drivers/gpu/drm/tests/Makefile | 1 + drivers/gpu/drm/tests/drm_panic_helper_test.c | 15 ++++++++--- include/drm/drm_panic_helper.h | 8 ++++++ 5 files changed, 35 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/Kconfig.debug b/drivers/gpu/drm/Kconfig.debug index 1f4c98cbf090..b909cd0a619f 100644 --- a/drivers/gpu/drm/Kconfig.debug +++ b/drivers/gpu/drm/Kconfig.debug @@ -69,6 +69,7 @@ config DRM_KUNIT_TEST select DRM_EXPORT_FOR_TESTS if m select DRM_GEM_SHMEM_HELPER select DRM_KUNIT_TEST_HELPERS + select DRM_PANIC_HELPER select DRM_SYSFB_HELPER select PRIME_NUMBERS default KUNIT_ALL_TESTS diff --git a/drivers/gpu/drm/drm_panic_helper.c b/drivers/gpu/drm/drm_panic_helper.c index 3d612f9f3a37..1e114cdab3dd 100644 --- a/drivers/gpu/drm/drm_panic_helper.c +++ b/drivers/gpu/drm/drm_panic_helper.c @@ -8,6 +8,8 @@ #include #include +#include + #include #include #include @@ -431,8 +433,8 @@ static void drm_panic_helper_logo_draw(struct drm_scanout_buffer *sb, struct drm fg_color); } -static int drm_panic_helper_draw_screen_user(struct drm_scanout_buffer *sb, - u32 fg_color, u32 bg_color) +VISIBLE_IF_KUNIT int drm_panic_helper_draw_screen_user(struct drm_scanout_buffer *sb, + u32 fg_color, u32 bg_color) { const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen, r_logo, r_msg; @@ -464,6 +466,7 @@ static int drm_panic_helper_draw_screen_user(struct drm_scanout_buffer *sb, return 0; } +EXPORT_SYMBOL_IF_KUNIT(drm_panic_helper_draw_screen_user); /* * Draw one line of kmsg, and handle wrapping if it won't fit in the screen width. @@ -502,8 +505,8 @@ static int draw_line_with_wrap(struct drm_scanout_buffer *sb, const struct font_ * Draw the kmsg buffer to the screen, starting from the youngest message at the bottom, * and going up until reaching the top of the screen. */ -static int drm_panic_helper_draw_screen_kmsg(struct drm_scanout_buffer *sb, - u32 fg_color, u32 bg_color) +VISIBLE_IF_KUNIT int drm_panic_helper_draw_screen_kmsg(struct drm_scanout_buffer *sb, + u32 fg_color, u32 bg_color) { const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen = DRM_RECT_INIT(0, 0, sb->width, sb->height); @@ -547,6 +550,7 @@ static int drm_panic_helper_draw_screen_kmsg(struct drm_scanout_buffer *sb, return 0; } +EXPORT_SYMBOL_IF_KUNIT(drm_panic_helper_draw_screen_kmsg); #if defined(CONFIG_DRM_PANIC_SCREEN_QR_CODE) /* @@ -697,9 +701,9 @@ static int drm_panic_helper_get_qr_code(u8 **qr_image, unsigned int qr_version) /* * Draw the panic message at the center of the screen, with a QR Code */ -static int drm_panic_helper_draw_screen_qr_code(struct drm_scanout_buffer *sb, - u32 fg_color, u32 bg_color, - unsigned int qr_version) +VISIBLE_IF_KUNIT int drm_panic_helper_draw_screen_qr_code(struct drm_scanout_buffer *sb, + u32 fg_color, u32 bg_color, + unsigned int qr_version) { const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); struct drm_rect r_screen, r_logo, r_msg, r_qr, r_qr_canvas; @@ -767,6 +771,7 @@ static int drm_panic_helper_draw_screen_qr_code(struct drm_scanout_buffer *sb, drm_panic_helper_blit(sb, &r_qr, qr_image, qr_pitch, scale, fg_color); return 0; } +EXPORT_SYMBOL_IF_KUNIT(drm_panic_helper_draw_screen_qr_code); #else static void __init drm_panic_helper_qr_init(void) {}; static void __exit drm_panic_helper_qr_exit(void) {}; @@ -819,7 +824,7 @@ static int draw_panic_helper_dispatch(struct drm_scanout_buffer *sb, return ret; } -static void drm_panic_helper_set_description(const char *description) +VISIBLE_IF_KUNIT void drm_panic_helper_set_description(const char *description) { u32 len; @@ -834,6 +839,7 @@ static void drm_panic_helper_set_description(const char *description) desc_line->len = len; } } +EXPORT_SYMBOL_IF_KUNIT(drm_panic_helper_set_description); static void drm_panic_helper_clear_description(void) { @@ -907,7 +913,3 @@ void __exit drm_panic_helper_exit(void) { drm_panic_helper_qr_exit(); } - -#ifdef CONFIG_DRM_KUNIT_TEST -#include "tests/drm_panic_helper_test.c" -#endif diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index e7193b49cf91..42207df1d1c8 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \ drm_managed_test.o \ drm_mm_test.o \ drm_modes_test.o \ + drm_panic_helper_test.o \ drm_plane_helper_test.o \ drm_probe_helper_test.o \ drm_rect_test.o \ diff --git a/drivers/gpu/drm/tests/drm_panic_helper_test.c b/drivers/gpu/drm/tests/drm_panic_helper_test.c index fcff8d2dccbe..75110da226dd 100644 --- a/drivers/gpu/drm/tests/drm_panic_helper_test.c +++ b/drivers/gpu/drm/tests/drm_panic_helper_test.c @@ -6,13 +6,17 @@ * KUNIT tests for DRM panic helpers */ -#include -#include +#include +#include +#include #include -#include -#include +#include +#include +#include + +MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING"); static void drm_panic_check_color_byte(struct kunit *test, u8 b) { @@ -233,3 +237,6 @@ static struct kunit_suite drm_panic_helper_suite = { }; kunit_test_suite(drm_panic_helper_suite); + +MODULE_DESCRIPTION("KUnit test suite for DRM panic handling"); +MODULE_LICENSE("GPL"); diff --git a/include/drm/drm_panic_helper.h b/include/drm/drm_panic_helper.h index 6dc63288bc2a..76ff3a83e07b 100644 --- a/include/drm/drm_panic_helper.h +++ b/include/drm/drm_panic_helper.h @@ -8,6 +8,7 @@ enum drm_panic_type; struct drm_plane; +struct drm_scanout_buffer; /* drm_panic_helper.c */ void drm_plane_helper_display_panic_screen(struct drm_plane *plane, @@ -15,6 +16,13 @@ void drm_plane_helper_display_panic_screen(struct drm_plane *plane, enum drm_panic_type panic_type, u32 fg_color, u32 bg_color, unsigned int qr_version); +#if IS_ENABLED(CONFIG_KUNIT) +int drm_panic_helper_draw_screen_user(struct drm_scanout_buffer *sb, u32 fg_color, u32 bg_color); +int drm_panic_helper_draw_screen_kmsg(struct drm_scanout_buffer *sb, u32 fg_color, u32 bg_color); +int drm_panic_helper_draw_screen_qr_code(struct drm_scanout_buffer *sb, unsigned int qr_version, + u32 fg_color, u32 bg_color); +void drm_panic_helper_set_description(const char *description); +#endif /* drm_panic_helper_qr.rs */ size_t drm_panic_helper_qr_max_data_size(u8 version, size_t url_len); -- 2.55.0