lwn.git/drivers/gpu/drm/drm_irq.c, branch docs-next

drm: Remove source code for non-KMS drivers

2023-12-06T09:08:37+00:00

Remove all remaining source code for non-KMS drivers. These drivers have been removed in v6.3 and won't comeback. Signed-off-by: Thomas Zimmermann Reviewed-by: David Airlie Reviewed-by: Daniel Vetter Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20231122122449.11588-13-tzimmermann@suse.de

drm: Build drm_irq.o only if CONFIG_DRM_LEGACY has been set

2021-10-22T14:20:12+00:00

All code in drm_irq.o is for legacy UMs drivers. Only build and link the file if CONFIG_DRM_LEGACY has been enabled. Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20211020131941.15367-2-tzimmermann@suse.de

drm: IRQ midlayer is now legacy

2021-08-10T18:14:01+00:00

Hide the DRM midlayer behind CONFIG_DRM_LEGACY, make functions use the prefix drm_legacy_, and move declarations to drm_legacy.h. In struct drm_device, move the fields irq and irq_enabled behind CONFIG_DRM_LEGACY. All callers have been updated. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-15-tzimmermann@suse.de

drm: Remove unused devm_drm_irq_install()

2021-08-10T18:13:57+00:00

DRM IRQ helpers will become legacy. The function devm_drm_irq_install() is unused and won't be required later. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-14-tzimmermann@suse.de

drm: Fix typo in comments

2021-08-02T08:19:43+00:00

fix typo for drm v1->v2: respin with the change "iff ==> implies that" Signed-off-by: Cai Huoqing Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210730132729.376-1-caihuoqing@baidu.com

vgaarb: provide a vga_client_unregister wrapper

2021-07-21T08:29:00+00:00

Add a trivial wrapper for the unregister case that sets all fields to NULL. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-6-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

drm: Don't test for IRQ support in VBLANK ioctls

2021-06-29T09:03:39+00:00

For KMS drivers, replace the IRQ check in VBLANK ioctls with a check for vblank support. IRQs might be enabled wthout vblanking being supported. This change also removes the DRM framework's only dependency on IRQ state for non-legacy drivers. For legacy drivers with userspace modesetting, the original test remains in drm_wait_vblank_ioctl(). v4: * avoid preprocessor ifdef in drm_wait_vblank_ioctl() (Jani, Thierry) v3: * optimize test in drm_wait_vblank_ioctl() for KMS case (Liviu) * update docs for drm_irq_uninstall() v2: * keep the old test for legacy drivers in drm_wait_vblank_ioctl() (Daniel) Signed-off-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Reviewed-by: Liviu Dudau Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210625082222.3845-5-tzimmermann@suse.de

drm: Upcast struct drm_device.dev to struct pci_device; replace pdev

2021-01-19T08:06:38+00:00

We have DRM drivers based on USB, SPI and platform devices. All of them are fine with storing their device reference in struct drm_device.dev. PCI devices should be no exception. Therefore struct drm_device.pdev is deprecated. Instead upcast from struct drm_device.dev with to_pci_dev(). PCI-specific code can use dev_is_pci() to test for a PCI device. This patch changes the DRM core code and documentation accordingly. v4: * split-off pdev deprecation into separate patch Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Acked-by: Sam Ravnborg Tested-by: Andy Lavr Link: https://patchwork.freedesktop.org/patch/msgid/20210118131420.15874-2-tzimmermann@suse.de

drm/irq: Add the new api to install irq

2020-12-03T08:57:15+00:00

Add new api devm_drm_irq_install() to register interrupts, no need to call drm_irq_uninstall() when the drm module is removed. Signed-off-by: Tian Tao Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/1606901212-8214-3-git-send-email-tiantao6@hisilicon.com

drm: use drm_dev_has_vblank more

2020-05-29T10:58:11+00:00

For historical reasons it's called dev->num_crtcs, which is rather confusing ever since kms was added. But now we have a nice helper, so let's use it for better readability! Only code change is in atomic helpers: vblank support means that dev->irq_enabled must be set too. Another one of these quirky things ... But since it's implied we can simplify that check. Reviewed-by: Thomas Zimmermann Acked-by: Sam Ravnborg Signed-off-by: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: David Airlie Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200527111134.1571781-1-daniel.vetter@ffwll.ch