Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C4193DD536 for ; Tue, 29 Sep 2026 15:42:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790696560; cv=none; b=bL8sbeenF4aBNyKVodBnLfCHa08PSLBWgm+C6QGuBf6Z+BV8chgswxrRC6J2wSm9EP6Ie9dNNcfx2SAr29KJ66k+J89z5cSDkgTSBUlyv0rYkC4L95COROIAFmQQXrUSm3MLbGf6gsTHcUzzxA1rsfBXfMjuOCCh3VDILw3kiJc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790696560; c=relaxed/simple; bh=CfHDLE4r34PaB81QkPgQCHMbpiInP4OydayyEz/IrWw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V1Z+GymXcxRoi/qXKcZJdZHyBdN8WDHMXrfzRNvY//HkI3gooIvtjdWMloK+qo7TuzX6v/ev5P+rrM+EqMyPrR3U2MlbiwlGF5A+PTuvpI+nm/aVaM3PBr4CipsUI8RgHrkGEz3regDPML2oCWiWci2l91I33jl9TOXjec+LoBk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hg9E1BtG; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hg9E1BtG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 071871F00898; Tue, 29 Sep 2026 15:42:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790696558; bh=X/XXIIMw+oV6sCunGYL4ly95HhqASeUChGJqcgVbARs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=hg9E1BtG/eslJ4PFYSnpx9YfeXXvQD+hiYCnBgxE8bQ+BEYyN3vTlLEKoAoTWDrjb +laNZBXCOji7e7fj4FrXu5/5tDBYTej46BFb5MLEyYCUq+JzTMdZJU6eZKfXeLkIHG DY7Znuq93dsC7AZPCdQEB8Xs1LvUJqp9/50IdAr1CgVnVxuVl82UpZKGv75br3LD5+ g9HNiM5yD1g2e6bRomQBVgHmeCMjSqYcVjasTWDcgafOjIUlkuYQ8rTsc+HKwRHhz5 0tZ4XB5YWvHZaA3h7NxzxEmGyejH51N4SuFjoOAWMEacXRF0jyq9MJjRjTbKYTiYFs o5NGhgN7n72lw== From: Sasha Levin To: stable@vger.kernel.org Cc: Thomas Zimmermann , Rodrigo Vivi , Petr Vorel , Andi Shyti , Danilo Krummrich , Lyude Paul , Jocelyn Falempe , Sasha Levin Subject: [PATCH 6.18.y 1/3] drm/client: Remove holds_console_lock parameter from suspend/resume Date: Tue, 29 Sep 2026 11:42:34 -0400 Message-ID: <20260929154236.4087907-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026092902-autistic-bonnet-dcb5@gregkh> References: <2026092902-autistic-bonnet-dcb5@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Thomas Zimmermann [ Upstream commit 7910d69376cde30e5871970d97d1a2e360568474 ] No caller of the client resume/suspend helpers holds the console lock. The last such cases were removed from radeon in the patch series at [1]. Now remove the related parameter and the TODO items. v2: - update placeholders for CONFIG_DRM_CLIENT=n Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/series/151624/ # [1] Reviewed-by: Rodrigo Vivi Acked-by: Rodrigo Vivi Reviewed-by: Petr Vorel Reviewed-by: Andi Shyti Acked-by: Danilo Krummrich Reviewed-by: Lyude Paul Reviewed-by: Jocelyn Falempe Link: https://lore.kernel.org/r/20251001143709.419736-1-tzimmermann@suse.de Stable-dep-of: 1fca688e9443 ("drm/client: fix restore of partially initialized client") Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++---- drivers/gpu/drm/clients/drm_fbdev_client.c | 14 ++++---------- drivers/gpu/drm/clients/drm_log.c | 4 ++-- drivers/gpu/drm/drm_client_event.c | 16 ++++++++-------- drivers/gpu/drm/drm_modeset_helper.c | 6 +++--- drivers/gpu/drm/i915/i915_driver.c | 6 +++--- drivers/gpu/drm/nouveau/nouveau_display.c | 4 ++-- drivers/gpu/drm/radeon/radeon_device.c | 4 ++-- drivers/gpu/drm/xe/display/xe_display.c | 6 +++--- include/drm/drm_client.h | 14 ++------------ include/drm/drm_client_event.h | 8 ++++---- 11 files changed, 37 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6377501c70a80..b47989692bba7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -5315,7 +5315,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool notify_clients) dev_warn(adev->dev, "smart shift update failed\n"); if (notify_clients) - drm_client_dev_suspend(adev_to_drm(adev), false); + drm_client_dev_suspend(adev_to_drm(adev)); cancel_delayed_work_sync(&adev->delayed_init_work); @@ -5445,7 +5445,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool notify_clients) flush_delayed_work(&adev->delayed_init_work); if (notify_clients) - drm_client_dev_resume(adev_to_drm(adev), false); + drm_client_dev_resume(adev_to_drm(adev)); amdgpu_ras_resume(adev); @@ -6060,7 +6060,7 @@ int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context) if (r) goto out; - drm_client_dev_resume(adev_to_drm(tmp_adev), false); + drm_client_dev_resume(adev_to_drm(tmp_adev)); /* * The GPU enters bad state once faulty pages @@ -6395,7 +6395,7 @@ static void amdgpu_device_halt_activities(struct amdgpu_device *adev, */ amdgpu_unregister_gpu_instance(tmp_adev); - drm_client_dev_suspend(adev_to_drm(tmp_adev), false); + drm_client_dev_suspend(adev_to_drm(tmp_adev)); /* disable ras on ALL IPs */ if (!need_emergency_restart && !amdgpu_reset_in_dpc(adev) && diff --git a/drivers/gpu/drm/clients/drm_fbdev_client.c b/drivers/gpu/drm/clients/drm_fbdev_client.c index f894ba52bdb51..ec5ab9f305471 100644 --- a/drivers/gpu/drm/clients/drm_fbdev_client.c +++ b/drivers/gpu/drm/clients/drm_fbdev_client.c @@ -62,26 +62,20 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) return ret; } -static int drm_fbdev_client_suspend(struct drm_client_dev *client, bool holds_console_lock) +static int drm_fbdev_client_suspend(struct drm_client_dev *client) { struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - if (holds_console_lock) - drm_fb_helper_set_suspend(fb_helper, true); - else - drm_fb_helper_set_suspend_unlocked(fb_helper, true); + drm_fb_helper_set_suspend_unlocked(fb_helper, true); return 0; } -static int drm_fbdev_client_resume(struct drm_client_dev *client, bool holds_console_lock) +static int drm_fbdev_client_resume(struct drm_client_dev *client) { struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - if (holds_console_lock) - drm_fb_helper_set_suspend(fb_helper, false); - else - drm_fb_helper_set_suspend_unlocked(fb_helper, false); + drm_fb_helper_set_suspend_unlocked(fb_helper, false); return 0; } diff --git a/drivers/gpu/drm/clients/drm_log.c b/drivers/gpu/drm/clients/drm_log.c index 1e137786b36a1..36cc569fd75d3 100644 --- a/drivers/gpu/drm/clients/drm_log.c +++ b/drivers/gpu/drm/clients/drm_log.c @@ -328,7 +328,7 @@ static int drm_log_client_hotplug(struct drm_client_dev *client) return 0; } -static int drm_log_client_suspend(struct drm_client_dev *client, bool _console_lock) +static int drm_log_client_suspend(struct drm_client_dev *client) { struct drm_log *dlog = client_to_drm_log(client); @@ -337,7 +337,7 @@ static int drm_log_client_suspend(struct drm_client_dev *client, bool _console_l return 0; } -static int drm_log_client_resume(struct drm_client_dev *client, bool _console_lock) +static int drm_log_client_resume(struct drm_client_dev *client) { struct drm_log *dlog = client_to_drm_log(client); diff --git a/drivers/gpu/drm/drm_client_event.c b/drivers/gpu/drm/drm_client_event.c index c83196ad8b59d..c3baeb4d4e6bc 100644 --- a/drivers/gpu/drm/drm_client_event.c +++ b/drivers/gpu/drm/drm_client_event.c @@ -122,7 +122,7 @@ void drm_client_dev_restore(struct drm_device *dev) mutex_unlock(&dev->clientlist_mutex); } -static int drm_client_suspend(struct drm_client_dev *client, bool holds_console_lock) +static int drm_client_suspend(struct drm_client_dev *client) { struct drm_device *dev = client->dev; int ret = 0; @@ -131,7 +131,7 @@ static int drm_client_suspend(struct drm_client_dev *client, bool holds_console_ return 0; if (client->funcs && client->funcs->suspend) - ret = client->funcs->suspend(client, holds_console_lock); + ret = client->funcs->suspend(client); drm_dbg_kms(dev, "%s: ret=%d\n", client->name, ret); client->suspended = true; @@ -139,20 +139,20 @@ static int drm_client_suspend(struct drm_client_dev *client, bool holds_console_ return ret; } -void drm_client_dev_suspend(struct drm_device *dev, bool holds_console_lock) +void drm_client_dev_suspend(struct drm_device *dev) { struct drm_client_dev *client; mutex_lock(&dev->clientlist_mutex); list_for_each_entry(client, &dev->clientlist, list) { if (!client->suspended) - drm_client_suspend(client, holds_console_lock); + drm_client_suspend(client); } mutex_unlock(&dev->clientlist_mutex); } EXPORT_SYMBOL(drm_client_dev_suspend); -static int drm_client_resume(struct drm_client_dev *client, bool holds_console_lock) +static int drm_client_resume(struct drm_client_dev *client) { struct drm_device *dev = client->dev; int ret = 0; @@ -161,7 +161,7 @@ static int drm_client_resume(struct drm_client_dev *client, bool holds_console_l return 0; if (client->funcs && client->funcs->resume) - ret = client->funcs->resume(client, holds_console_lock); + ret = client->funcs->resume(client); drm_dbg_kms(dev, "%s: ret=%d\n", client->name, ret); client->suspended = false; @@ -172,14 +172,14 @@ static int drm_client_resume(struct drm_client_dev *client, bool holds_console_l return ret; } -void drm_client_dev_resume(struct drm_device *dev, bool holds_console_lock) +void drm_client_dev_resume(struct drm_device *dev) { struct drm_client_dev *client; mutex_lock(&dev->clientlist_mutex); list_for_each_entry(client, &dev->clientlist, list) { if (client->suspended) - drm_client_resume(client, holds_console_lock); + drm_client_resume(client); } mutex_unlock(&dev->clientlist_mutex); } diff --git a/drivers/gpu/drm/drm_modeset_helper.c b/drivers/gpu/drm/drm_modeset_helper.c index 9887355605700..a57f6a10ada41 100644 --- a/drivers/gpu/drm/drm_modeset_helper.c +++ b/drivers/gpu/drm/drm_modeset_helper.c @@ -203,10 +203,10 @@ int drm_mode_config_helper_suspend(struct drm_device *dev) if (dev->mode_config.poll_enabled) drm_kms_helper_poll_disable(dev); - drm_client_dev_suspend(dev, false); + drm_client_dev_suspend(dev); state = drm_atomic_helper_suspend(dev); if (IS_ERR(state)) { - drm_client_dev_resume(dev, false); + drm_client_dev_resume(dev); /* * Don't enable polling if it was never initialized @@ -252,7 +252,7 @@ int drm_mode_config_helper_resume(struct drm_device *dev) DRM_ERROR("Failed to resume (%d)\n", ret); dev->mode_config.suspend_state = NULL; - drm_client_dev_resume(dev, false); + drm_client_dev_resume(dev); /* * Don't enable polling if it is not initialized diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index a28c3710c4d50..89be8da79d3bf 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -978,7 +978,7 @@ void i915_driver_shutdown(struct drm_i915_private *i915) intel_runtime_pm_disable(&i915->runtime_pm); intel_power_domains_disable(display); - drm_client_dev_suspend(&i915->drm, false); + drm_client_dev_suspend(&i915->drm); if (intel_display_device_present(display)) { drm_kms_helper_poll_disable(&i915->drm); intel_display_driver_disable_user_access(display); @@ -1061,7 +1061,7 @@ static int i915_drm_suspend(struct drm_device *dev) /* We do a lot of poking in a lot of registers, make sure they work * properly. */ intel_power_domains_disable(display); - drm_client_dev_suspend(dev, false); + drm_client_dev_suspend(dev); if (intel_display_device_present(display)) { drm_kms_helper_poll_disable(dev); intel_display_driver_disable_user_access(display); @@ -1245,7 +1245,7 @@ static int i915_drm_resume(struct drm_device *dev) intel_opregion_resume(display); - drm_client_dev_resume(dev, false); + drm_client_dev_resume(dev); intel_power_domains_enable(display); diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 805d0a87aa546..d03364f3c5974 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -764,7 +764,7 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime) { struct nouveau_display *disp = nouveau_display(dev); - drm_client_dev_suspend(dev, false); + drm_client_dev_suspend(dev); if (drm_drv_uses_atomic_modeset(dev)) { if (!runtime) { @@ -795,7 +795,7 @@ nouveau_display_resume(struct drm_device *dev, bool runtime) } } - drm_client_dev_resume(dev, false); + drm_client_dev_resume(dev); } int diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 9e35b14e2bf0e..60afaa8e56b4b 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1635,7 +1635,7 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, } if (notify_clients) - drm_client_dev_suspend(dev, false); + drm_client_dev_suspend(dev); return 0; } @@ -1739,7 +1739,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool notify_clients) radeon_pm_compute_clocks(rdev); if (notify_clients) - drm_client_dev_resume(dev, false); + drm_client_dev_resume(dev); return 0; } diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c index 2ca957294b85f..fbdf1bad97d8f 100644 --- a/drivers/gpu/drm/xe/display/xe_display.c +++ b/drivers/gpu/drm/xe/display/xe_display.c @@ -331,7 +331,7 @@ void xe_display_pm_suspend(struct xe_device *xe) * properly. */ intel_power_domains_disable(display); - drm_client_dev_suspend(&xe->drm, false); + drm_client_dev_suspend(&xe->drm); if (intel_display_device_present(display)) { drm_kms_helper_poll_disable(&xe->drm); @@ -363,7 +363,7 @@ void xe_display_pm_shutdown(struct xe_device *xe) return; intel_power_domains_disable(display); - drm_client_dev_suspend(&xe->drm, false); + drm_client_dev_suspend(&xe->drm); if (intel_display_device_present(display)) { drm_kms_helper_poll_disable(&xe->drm); @@ -488,7 +488,7 @@ void xe_display_pm_resume(struct xe_device *xe) intel_opregion_resume(display); - drm_client_dev_resume(&xe->drm, false); + drm_client_dev_resume(&xe->drm); intel_power_domains_enable(display); } diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index 8e2e51f984306..540d2bd70c006 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -70,13 +70,8 @@ struct drm_client_funcs { * Called when suspending the device. * * This callback is optional. - * - * FIXME: Some callers hold the console lock when invoking this - * function. This interferes with fbdev emulation, which - * also tries to acquire the lock. Push the console lock - * into the callback and remove 'holds_console_lock'. */ - int (*suspend)(struct drm_client_dev *client, bool holds_console_lock); + int (*suspend)(struct drm_client_dev *client); /** * @resume: @@ -84,13 +79,8 @@ struct drm_client_funcs { * Called when resuming the device from suspend. * * This callback is optional. - * - * FIXME: Some callers hold the console lock when invoking this - * function. This interferes with fbdev emulation, which - * also tries to acquire the lock. Push the console lock - * into the callback and remove 'holds_console_lock'. */ - int (*resume)(struct drm_client_dev *client, bool holds_console_lock); + int (*resume)(struct drm_client_dev *client); }; /** diff --git a/include/drm/drm_client_event.h b/include/drm/drm_client_event.h index 1d544d3a32286..985d6f02a4c43 100644 --- a/include/drm/drm_client_event.h +++ b/include/drm/drm_client_event.h @@ -11,8 +11,8 @@ struct drm_device; void drm_client_dev_unregister(struct drm_device *dev); void drm_client_dev_hotplug(struct drm_device *dev); void drm_client_dev_restore(struct drm_device *dev); -void drm_client_dev_suspend(struct drm_device *dev, bool holds_console_lock); -void drm_client_dev_resume(struct drm_device *dev, bool holds_console_lock); +void drm_client_dev_suspend(struct drm_device *dev); +void drm_client_dev_resume(struct drm_device *dev); #else static inline void drm_client_dev_unregister(struct drm_device *dev) { } @@ -20,9 +20,9 @@ static inline void drm_client_dev_hotplug(struct drm_device *dev) { } static inline void drm_client_dev_restore(struct drm_device *dev) { } -static inline void drm_client_dev_suspend(struct drm_device *dev, bool holds_console_lock) +static inline void drm_client_dev_suspend(struct drm_device *dev) { } -static inline void drm_client_dev_resume(struct drm_device *dev, bool holds_console_lock) +static inline void drm_client_dev_resume(struct drm_device *dev) { } #endif -- 2.53.0