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This includes format helpers, panic helpers and drawing helpers. Update drivers. No functional changes. The existing helpers are currently part of KMS helpers or the DRM core. Neither is suitable for this. Adding drm_pixel_helper.ko resolves this. The new module only depends on the DRM core and common kernel functions. Future directions: putting pixel-related helpers into the same module opens up the possibility of sharing more code among them. There is even more drawing code in vkms and a few other drivers. Hopefully this could be integrated into pixel helpers at some point. Smoke-tested on qemu with vesadrm and bochs. Thomas Zimmermann (4): drm: Add helper module for working with pixel data drm/pixel: Link format helpers into drm_pixel_helper.ko drm/pixel: Link panic helpers into drm_pixel_helper.ko drm/pixel: Link draw helpers into drm_pixel_helper.ko drivers/gpu/drm/Kconfig | 15 ++++++-------- drivers/gpu/drm/Kconfig.debug | 2 +- drivers/gpu/drm/Makefile | 12 +++++++---- drivers/gpu/drm/amd/amdgpu/Kconfig | 1 + drivers/gpu/drm/ast/Kconfig | 1 + drivers/gpu/drm/clients/Kconfig | 2 +- .../gpu/drm/{drm_draw.c => drm_draw_helper.c} | 0 drivers/gpu/drm/drm_kms_helper_common.c | 13 ------------ drivers/gpu/drm/drm_panic_helper.c | 1 + drivers/gpu/drm/drm_panic_internal.h | 14 ------------- drivers/gpu/drm/drm_pixel_helper_common.c | 20 +++++++++++++++++++ drivers/gpu/drm/drm_pixel_helper_internal.h | 20 +++++++++++++++++++ drivers/gpu/drm/gud/Kconfig | 1 + drivers/gpu/drm/hisilicon/hibmc/Kconfig | 1 + .../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 1 + drivers/gpu/drm/hyperv/Kconfig | 1 + drivers/gpu/drm/i915/Kconfig | 1 + drivers/gpu/drm/imx/ipuv3/Kconfig | 1 + drivers/gpu/drm/mgag200/Kconfig | 1 + drivers/gpu/drm/nouveau/Kconfig | 1 + drivers/gpu/drm/renesas/rcar-du/Kconfig | 1 + drivers/gpu/drm/renesas/shmobile/Kconfig | 1 + drivers/gpu/drm/sitronix/Kconfig | 2 ++ drivers/gpu/drm/solomon/Kconfig | 1 + drivers/gpu/drm/sysfb/Kconfig | 1 + drivers/gpu/drm/sysfb/drm_sysfb_modeset.c | 1 + drivers/gpu/drm/tidss/Kconfig | 1 + drivers/gpu/drm/tiny/Kconfig | 6 ++++++ drivers/gpu/drm/tiny/bochs.c | 1 + drivers/gpu/drm/virtio/Kconfig | 1 + 30 files changed, 83 insertions(+), 42 deletions(-) rename drivers/gpu/drm/{drm_draw.c => drm_draw_helper.c} (100%) create mode 100644 drivers/gpu/drm/drm_pixel_helper_common.c create mode 100644 drivers/gpu/drm/drm_pixel_helper_internal.h base-commit: 5b9ee97c47574138633a1cb70a32d118b6860a43 -- 2.56.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 217E660774C4 for ; 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Mon, 19 Oct 2026 15:46:17 +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 gYPgBkk71mrrPAAAD6G6ig (envelope-from ); Mon, 19 Oct 2026 15:46:17 +0000 From: Thomas Zimmermann To: jfalempe@redhat.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, simona@ffwll.ch Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-hyperv@vger.kernel.org, intel-gfx@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 0/4] drm: Move drawing to pixel-helper module Date: Mon, 19 Oct 2026 17:32:41 +0200 Message-ID: <20261019154612.777074-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.56.0 X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.80 X-Spam-Level: X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_TO(0.00)[redhat.com,linux.intel.com,kernel.org,gmail.com,ffwll.ch]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[16]; MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo]; RCVD_COUNT_TWO(0.00)[2]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "amd-gfx" X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,RCVD_IN_ZEN_BLOCKED_OPENDNS,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Add the new module drm_pixel_helper.ko and link existing shared code for drawing to it. This includes format helpers, panic helpers and drawing helpers. Update drivers. No functional changes. The existing helpers are currently part of KMS helpers or the DRM core. Neither is suitable for this. Adding drm_pixel_helper.ko resolves this. The new module only depends on the DRM core and common kernel functions. Future directions: putting pixel-related helpers into the same module opens up the possibility of sharing more code among them. There is even more drawing code in vkms and a few other drivers. Hopefully this could be integrated into pixel helpers at some point. Smoke-tested on qemu with vesadrm and bochs. Thomas Zimmermann (4): drm: Add helper module for working with pixel data drm/pixel: Link format helpers into drm_pixel_helper.ko drm/pixel: Link panic helpers into drm_pixel_helper.ko drm/pixel: Link draw helpers into drm_pixel_helper.ko drivers/gpu/drm/Kconfig | 15 ++++++-------- drivers/gpu/drm/Kconfig.debug | 2 +- drivers/gpu/drm/Makefile | 12 +++++++---- drivers/gpu/drm/amd/amdgpu/Kconfig | 1 + drivers/gpu/drm/ast/Kconfig | 1 + drivers/gpu/drm/clients/Kconfig | 2 +- .../gpu/drm/{drm_draw.c => drm_draw_helper.c} | 0 drivers/gpu/drm/drm_kms_helper_common.c | 13 ------------ drivers/gpu/drm/drm_panic_helper.c | 1 + drivers/gpu/drm/drm_panic_internal.h | 14 ------------- drivers/gpu/drm/drm_pixel_helper_common.c | 20 +++++++++++++++++++ drivers/gpu/drm/drm_pixel_helper_internal.h | 20 +++++++++++++++++++ drivers/gpu/drm/gud/Kconfig | 1 + drivers/gpu/drm/hisilicon/hibmc/Kconfig | 1 + .../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 1 + drivers/gpu/drm/hyperv/Kconfig | 1 + drivers/gpu/drm/i915/Kconfig | 1 + drivers/gpu/drm/imx/ipuv3/Kconfig | 1 + drivers/gpu/drm/mgag200/Kconfig | 1 + drivers/gpu/drm/nouveau/Kconfig | 1 + drivers/gpu/drm/renesas/rcar-du/Kconfig | 1 + drivers/gpu/drm/renesas/shmobile/Kconfig | 1 + drivers/gpu/drm/sitronix/Kconfig | 2 ++ drivers/gpu/drm/solomon/Kconfig | 1 + drivers/gpu/drm/sysfb/Kconfig | 1 + drivers/gpu/drm/sysfb/drm_sysfb_modeset.c | 1 + drivers/gpu/drm/tidss/Kconfig | 1 + drivers/gpu/drm/tiny/Kconfig | 6 ++++++ drivers/gpu/drm/tiny/bochs.c | 1 + drivers/gpu/drm/virtio/Kconfig | 1 + 30 files changed, 83 insertions(+), 42 deletions(-) rename drivers/gpu/drm/{drm_draw.c => drm_draw_helper.c} (100%) create mode 100644 drivers/gpu/drm/drm_pixel_helper_common.c create mode 100644 drivers/gpu/drm/drm_pixel_helper_internal.h base-commit: 5b9ee97c47574138633a1cb70a32d118b6860a43 -- 2.56.0