linux/drivers/gpu/drm/tiny, branch v5.12

drm: Use USB controller's DMA mask when importing dmabufs

2021-03-11T10:11:33Z

USB devices cannot perform DMA and hence have no dma_mask set in their device structure. Therefore importing dmabuf into a USB-based driver fails, which breaks joining and mirroring of display in X11. For USB devices, pick the associated USB controller as attachment device. This allows the DRM import helpers to perform the DMA setup. If the DMA controller does not support DMA transfers, we're out of luck and cannot import. Our current USB-based DRM drivers don't use DMA, so the actual DMA device is not important. Tested by joining/mirroring displays of udl and radeon under Gnome/X11. v8: * release dmadev if device initialization fails (Noralf) * fix commit description (Noralf) v7: * fix use-before-init bug in gm12u320 (Dan) v6: * implement workaround in DRM drivers and hold reference to DMA device while USB device is in use * remove dev_is_usb() (Greg) * collapse USB helper into usb_intf_get_dma_device() (Alan) * integrate Daniel's TODO statement (Daniel) * fix typos (Greg) v5: * provide a helper for USB interfaces (Alan) * add FIXME item to documentation and TODO list (Daniel) v4: * implement workaround with USB helper functions (Greg) * use struct usb_device->bus->sysdev as DMA device (Takashi) v3: * drop gem_create_object * use DMA mask of USB controller, if any (Daniel, Christian, Noralf) v2: * move fix to importer side (Christian, Daniel) * update SHMEM and CMA helpers for new PRIME callbacks Signed-off-by: Thomas Zimmermann Fixes: 6eb0233ec2d0 ("usb: don't inherity DMA properties for USB devices") Tested-by: Pavel Machek Reviewed-by: Greg Kroah-Hartman Acked-by: Christian König Acked-by: Daniel Vetter Acked-by: Noralf Trønnes Cc: Christoph Hellwig Cc: Greg Kroah-Hartman Cc: # v5.10+ Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20210303133229.3288-1-tzimmermann@suse.de Signed-off-by: Maarten Lankhorst

drm/cirrus: Remove references to struct drm_device.pdev

2021-01-06T14:43:10Z

Using struct drm_device.pdev is deprecated. Convert cirrus to struct drm_device.dev. No functional changes. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Acked-by: Sam Ravnborg Cc: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20201201103542.2182-6-tzimmermann@suse.de

drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends

2020-11-09T08:19:24Z

This patch replaces the vmap/vunmap's use of raw pointers in GEM object functions with instances of struct dma_buf_map. GEM backends are converted as well. For most of them, this simply changes the returned type. TTM-based drivers now return information about the location of the memory, either system or I/O memory. GEM VRAM helpers and qxl now use ttm_bo_vmap() et al. Amdgpu, nouveau and radeon use drm_gem_ttm_vmap() et al instead of implementing their own vmap callbacks. v7: * init QXL cursor to mapped BO buffer (kernel test robot) v5: * update vkms after switch to shmem v4: * use ttm_bo_vmap(), drm_gem_ttm_vmap(), et al. (Daniel, Christian) * fix a trailing { in drm_gem_vmap() * remove several empty functions instead of converting them (Daniel) * comment uses of raw pointers with a TODO (Daniel) * TODO list: convert more helpers to use struct dma_buf_map Signed-off-by: Thomas Zimmermann Acked-by: Christian König Tested-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de

drm/tiny/gm12u320: Retrieve USB device from struct drm_device.dev

2020-11-09T08:16:13Z

Drop the driver's udev field in favor of struct drm_device.dev. No functional changes made. v3: * upcast dev with gm12u320_to_usb_device() v2: * upcast dev with drm_dev_get_usb_device() Signed-off-by: Thomas Zimmermann Reviewed-by: Hans de Goede Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201103113456.3066-2-tzimmermann@suse.de

drm/: Constify struct drm_driver

2020-11-06T09:31:26Z

Only the following drivers aren't converted: - amdgpu, because of the driver_feature mangling due to virt support. Subsequent patch will address this. - nouveau, because DRIVER_ATOMIC uapi is still not the default on the platforms where it's supported (i.e. again driver_feature mangling) - vc4, again because of driver_feature mangling - qxl, because the ioctl table is somewhere else and moving that is maybe a bit too much, hence the num_ioctls assignment prevents a const driver structure. - arcpgu, because that is stuck behind a pending tiny-fication series from me. - legacy drivers, because legacy requires non-const drm_driver. Note that for armada I also went ahead and made the ioctl array const. Only cc'ing the driver people who've not been converted (everyone else is way too much). v2: Fix one misplaced const static, should be static const (0day) v3: - Improve commit message (Sam) Acked-by: Sam Ravnborg Cc: kernel test robot Acked-by: Maxime Ripard Reviewed-by: Alex Deucher Signed-off-by: Daniel Vetter Cc: Sam Ravnborg Cc: Dave Airlie Cc: Gerd Hoffmann Cc: virtualization@lists.linux-foundation.org Cc: Harry Wentland Cc: Leo Li Cc: Alex Deucher Cc: Christian König Cc: Eric Anholt Cc: Maxime Ripard Cc: Ben Skeggs Cc: nouveau@lists.freedesktop.org Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201104100425.1922351-5-daniel.vetter@ffwll.ch

drm/mipi-dbi: Remove ->enabled

2020-06-24T07:17:34Z

The atomic helpers try really hard to not lose track of things, duplicating enabled tracking in the driver is at best confusing. Double-enabling or disabling is a bug in atomic helpers. In the fb_dirty function we can just assume that the fb always exists, simple display pipe helpers guarantee that the crtc is only enabled together with the output, so we always have a primary plane around. Now in the update function we need to be a notch more careful, since that can also get called when the crtc is off. And we don't want to upload frames when that's the case, so filter that out too. Reviewed-by: Noralf Trønnes Acked-by: David Lechner Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: David Airlie Cc: Daniel Vetter Cc: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20200612160056.2082681-7-daniel.vetter@ffwll.ch

drm/tiny/repaper: Drop edp->enabled

2020-06-24T07:17:30Z

Same patch as the mipi-dbi one, atomic tracks this for us already, we just have to check the right thing. Reviewed-by: Noralf Trønnes Reviewed-by: Emil Velikov Signed-off-by: Daniel Vetter Cc: "Noralf Trønnes" Link: https://patchwork.freedesktop.org/patch/msgid/20200612160056.2082681-8-daniel.vetter@ffwll.ch

drm/cma-helper: Rework DRM_GEM_CMA_VMAP_DRIVER_OPS macro

2020-06-10T07:01:41Z

Rename the macro to DRM_GEM_CMA_DRIVER_OPS_VMAP to align naming with SHMEM helpers and drm_gem_cma_prime_import_sg_table_vmap(). An variant of the macro is provided for drivers that override the default .dumb_create callback. Adapt drivers to the changes. v3: * rename macro to signal implicit vmap on imported buffers v2: * provide DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Reviewed-by: Emil Velikov Link: https://patchwork.freedesktop.org/patch/msgid/20200605073247.4057-3-tzimmermann@suse.de

drm/cirrus: Move to drm/tiny

2020-04-28T14:05:15Z

Because it is. Huge congrats to everyone who made this kind of refactoring happen! Acked-by: Gerd Hoffmann Reviewed-by: Thomas Zimmermann Acked-by: Sam Ravnborg Signed-off-by: Daniel Vetter Cc: Dave Airlie Cc: Gerd Hoffmann Cc: virtualization@lists.linux-foundation.org Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-38-daniel.vetter@ffwll.ch

drm/gm12u320: Don't use drm_device->dev_private

2020-04-28T13:55:19Z

Upcasting using a container_of macro is more typesafe, faster and easier for the compiler to optimize. Acked-by: Sam Ravnborg Reviewed-by: Hans de Goede Signed-off-by: Daniel Vetter Cc: Hans de Goede Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-23-daniel.vetter@ffwll.ch