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Thu, 27 Aug 2026 08:29:21 +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 NtnJFWH1j2p4PAAAD6G6ig (envelope-from ); Thu, 27 Aug 2026 08:29:21 +0000 From: Thomas Zimmermann To: shiyongbang@huawei.com, kong.kongxinwei@hisilicon.com, tiantao6@hisilicon.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, simona@ffwll.ch Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH 0/2] hibmc: Improve vblank handling Date: Thu, 27 Aug 2026 10:23:43 +0200 Message-ID: <20260827082915.61176-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-0.999]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_TO(0.00)[huawei.com,hisilicon.com,linux.intel.com,kernel.org,gmail.com,ffwll.ch]; RCPT_COUNT_SEVEN(0.00)[9]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; 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,suse.de:mid]; RCVD_COUNT_TWO(0.00)[2]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Vblank event handling in hibmc is currently somewhat disconnected from what the hardware does. Patch 1 updates IRQ handlers to signal whether the driver handled an IRQ or not. Patch 2 connects hibmc's vblank events to the hardware's vblank interrupts. Tested on an RH1288 v3 system. Thomas Zimmermann (2): drm/hibmc: Return IRQ_NONE for unhandled interrupts drm/hibmc: Set up vblank event to be send on the next vblank drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 16 ++-------------- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 5 +++-- 2 files changed, 5 insertions(+), 16 deletions(-) base-commit: dc462ab791b686c48545c160ecc81be64f77a846 -- 2.55.0