dri-devel March 2021

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[Bug 211981] New: AMDGPU: without cable attached videocard shuts down and does wake up again, log prints "[drm] Cannot find any crtc or sizes"
by bugzilla-daemon＠bugzilla.kernel.org 03 Mar '21

03 Mar '21

https://bugzilla.kernel.org/show_bug.cgi?id=211981 Bug ID: 211981 Summary: AMDGPU: without cable attached videocard shuts down and does wake up again, log prints "[drm] Cannot find any crtc or sizes" Product: Drivers Version: 2.5 Kernel Version: 5.10.10 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: raulvior.bcn(a)gmail.com Regression: No Created attachment 295505 --> https://bugzilla.kernel.org/attachment.cgi?id=295505&action=edit Dmesg when no output is attached. Framebuffer not initalized. Linux boot shows the message in the title of this bug report if the videocard does not have any output attached. The computer boots up and when Linux starts loading, the card shuts down: fans stop spinning and the LED of the logo turns off. It's a Sapphire Radeon RX 580. If I attach the cable past this point the card does not turn on again. Pressing keys on the keyboard, moving the mouse or turning off and on the monitor does not awake the GPU. > amdgpu 0000:27:00.0: amdgpu: SE 4, SH per SE 1, CU per SH 9, active_cu_number > 36 > amdgpu 0000:27:00.0: [drm] Cannot find any crtc or sizes > [drm] Initialized amdgpu 3.40.0 20150101 for 0000:27:00.0 on minor 0 If there's an output device attached to the videocard, then it prints this text: > amdgpu 0000:27:00.0: amdgpu: SE 4, SH per SE 1, CU per SH 9, active_cu_number > 36 > [drm] fb mappable at 0xE0BEB000 > [drm] vram apper at 0xE0000000 > [drm] size 7299072 > [drm] fb depth is 24 > [drm] pitch is 6912 > fbcon: amdgpudrmfb (fb0) is primary device > EDAC amd64: F17h detected (node 0). > EDAC amd64: Node 0: DRAM ECC disabled. > Console: switching to colour frame buffer device 210x65 > amdgpu 0000:27:00.0: [drm] fb0: amdgpudrmfb frame buffer device > [drm] Initialized amdgpu 3.40.0 20150101 for 0000:27:00.0 on minor 0 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.

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[PATCH v8] drm: Use USB controller's DMA mask when importing dmabufs
by Thomas Zimmermann 03 Mar '21

03 Mar '21

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 <tzimmermann(a)suse.de> Fixes: 6eb0233ec2d0 ("usb: don't inherity DMA properties for USB devices") Tested-by: Pavel Machek <pavel(a)ucw.cz> Reviewed-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Acked-by: Christian König <christian.koenig(a)amd.com> Acked-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: <stable(a)vger.kernel.org> # v5.10+ Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> --- Documentation/gpu/todo.rst | 21 ++++++++++++++++ drivers/gpu/drm/tiny/gm12u320.c | 44 +++++++++++++++++++++++++++------ drivers/gpu/drm/udl/udl_drv.c | 17 +++++++++++++ drivers/gpu/drm/udl/udl_drv.h | 1 + drivers/gpu/drm/udl/udl_main.c | 10 ++++++++ drivers/usb/core/usb.c | 32 ++++++++++++++++++++++++ include/linux/usb.h | 2 ++ 7 files changed, 119 insertions(+), 8 deletions(-) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 0631b9b323d5..fdfd6a1081ec 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -571,6 +571,27 @@ Contact: Daniel Vetter Level: Intermediate +Remove automatic page mapping from dma-buf importing +---------------------------------------------------- + +When importing dma-bufs, the dma-buf and PRIME frameworks automatically map +imported pages into the importer's DMA area. drm_gem_prime_fd_to_handle() and +drm_gem_prime_handle_to_fd() require that importers call dma_buf_attach() +even if they never do actual device DMA, but only CPU access through +dma_buf_vmap(). This is a problem for USB devices, which do not support DMA +operations. + +To fix the issue, automatic page mappings should be removed from the +buffer-sharing code. Fixing this is a bit more involved, since the import/export +cache is also tied to &drm_gem_object.import_attach. Meanwhile we paper over +this problem for USB devices by fishing out the USB host controller device, as +long as that supports DMA. Otherwise importing can still needlessly fail. + +Contact: Thomas Zimmermann <tzimmermann(a)suse.de>, Daniel Vetter + +Level: Advanced + + Better Testing ============== diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c index 0b4f4f2af1ef..a233c86d428b 100644 --- a/drivers/gpu/drm/tiny/gm12u320.c +++ b/drivers/gpu/drm/tiny/gm12u320.c @@ -84,6 +84,7 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)"); struct gm12u320_device { struct drm_device dev; + struct device *dmadev; struct drm_simple_display_pipe pipe; struct drm_connector conn; unsigned char *cmd_buf; @@ -599,6 +600,22 @@ static const uint64_t gm12u320_pipe_modifiers[] = { DRM_FORMAT_MOD_INVALID }; +/* + * FIXME: Dma-buf sharing requires DMA support by the importing device. + * This function is a workaround to make USB devices work as well. + * See todo.rst for how to fix the issue in the dma-buf framework. + */ +static struct drm_gem_object *gm12u320_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct gm12u320_device *gm12u320 = to_gm12u320(dev); + + if (!gm12u320->dmadev) + return ERR_PTR(-ENODEV); + + return drm_gem_prime_import_dev(dev, dma_buf, gm12u320->dmadev); +} + DEFINE_DRM_GEM_FOPS(gm12u320_fops); static const struct drm_driver gm12u320_drm_driver = { @@ -612,6 +629,7 @@ static const struct drm_driver gm12u320_drm_driver = { .fops = &gm12u320_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .gem_prime_import = gm12u320_gem_prime_import, }; static const struct drm_mode_config_funcs gm12u320_mode_config_funcs = { @@ -638,15 +656,18 @@ static int gm12u320_usb_probe(struct usb_interface *interface, struct gm12u320_device, dev); if (IS_ERR(gm12u320)) return PTR_ERR(gm12u320); + dev = &gm12u320->dev; + + gm12u320->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev)); + if (!gm12u320->dmadev) + drm_warn(dev, "buffer sharing not supported"); /* not an error */ INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work); mutex_init(&gm12u320->fb_update.lock); - dev = &gm12u320->dev; - ret = drmm_mode_config_init(dev); if (ret) - return ret; + goto err_put_device; dev->mode_config.min_width = GM12U320_USER_WIDTH; dev->mode_config.max_width = GM12U320_USER_WIDTH; @@ -656,15 +677,15 @@ static int gm12u320_usb_probe(struct usb_interface *interface, ret = gm12u320_usb_alloc(gm12u320); if (ret) - return ret; + goto err_put_device; ret = gm12u320_set_ecomode(gm12u320); if (ret) - return ret; + goto err_put_device; ret = gm12u320_conn_init(gm12u320); if (ret) - return ret; + goto err_put_device; ret = drm_simple_display_pipe_init(&gm12u320->dev, &gm12u320->pipe, @@ -674,24 +695,31 @@ static int gm12u320_usb_probe(struct usb_interface *interface, gm12u320_pipe_modifiers, &gm12u320->conn); if (ret) - return ret; + goto err_put_device; drm_mode_config_reset(dev); usb_set_intfdata(interface, dev); ret = drm_dev_register(dev, 0); if (ret) - return ret; + goto err_put_device; drm_fbdev_generic_setup(dev, 0); return 0; + +err_put_device: + put_device(gm12u320->dmadev); + return ret; } static void gm12u320_usb_disconnect(struct usb_interface *interface) { struct drm_device *dev = usb_get_intfdata(interface); + struct gm12u320_device *gm12u320 = to_gm12u320(dev); + put_device(gm12u320->dmadev); + gm12u320->dmadev = NULL; drm_dev_unplug(dev); drm_atomic_helper_shutdown(dev); } diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 9269092697d8..5703277c6f52 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -32,6 +32,22 @@ static int udl_usb_resume(struct usb_interface *interface) return drm_mode_config_helper_resume(dev); } +/* + * FIXME: Dma-buf sharing requires DMA support by the importing device. + * This function is a workaround to make USB devices work as well. + * See todo.rst for how to fix the issue in the dma-buf framework. + */ +static struct drm_gem_object *udl_driver_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct udl_device *udl = to_udl(dev); + + if (!udl->dmadev) + return ERR_PTR(-ENODEV); + + return drm_gem_prime_import_dev(dev, dma_buf, udl->dmadev); +} + DEFINE_DRM_GEM_FOPS(udl_driver_fops); static const struct drm_driver driver = { @@ -40,6 +56,7 @@ static const struct drm_driver driver = { /* GEM hooks */ .fops = &udl_driver_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .gem_prime_import = udl_driver_gem_prime_import, .name = DRIVER_NAME, .desc = DRIVER_DESC, diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 875e73551ae9..cc16a13316e4 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -50,6 +50,7 @@ struct urb_list { struct udl_device { struct drm_device drm; struct device *dev; + struct device *dmadev; struct drm_simple_display_pipe display_pipe; diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index 0e2a376cb075..853f147036f6 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -315,6 +315,10 @@ int udl_init(struct udl_device *udl) DRM_DEBUG("\n"); + udl->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev)); + if (!udl->dmadev) + drm_warn(dev, "buffer sharing not supported"); /* not an error */ + mutex_init(&udl->gem_lock); if (!udl_parse_vendor_descriptor(udl)) { @@ -343,12 +347,18 @@ int udl_init(struct udl_device *udl) err: if (udl->urbs.count) udl_free_urb_list(dev); + put_device(udl->dmadev); DRM_ERROR("%d\n", ret); return ret; } int udl_drop_usb(struct drm_device *dev) { + struct udl_device *udl = to_udl(dev); + udl_free_urb_list(dev); + put_device(udl->dmadev); + udl->dmadev = NULL; + return 0; } diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 8f07b0516100..a566bb494e24 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -748,6 +748,38 @@ void usb_put_intf(struct usb_interface *intf) } EXPORT_SYMBOL_GPL(usb_put_intf); +/** + * usb_intf_get_dma_device - acquire a reference on the usb interface's DMA endpoint + * @intf: the usb interface + * + * While a USB device cannot perform DMA operations by itself, many USB + * controllers can. A call to usb_intf_get_dma_device() returns the DMA endpoint + * for the given USB interface, if any. The returned device structure must be + * released with put_device(). + * + * See also usb_get_dma_device(). + * + * Returns: A reference to the usb interface's DMA endpoint; or NULL if none + * exists. + */ +struct device *usb_intf_get_dma_device(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct device *dmadev; + + if (!udev->bus) + return NULL; + + dmadev = get_device(udev->bus->sysdev); + if (!dmadev || !dmadev->dma_mask) { + put_device(dmadev); + return NULL; + } + + return dmadev; +} +EXPORT_SYMBOL_GPL(usb_intf_get_dma_device); + /* USB device locking * * USB devices and interfaces are locked using the semaphore in their diff --git a/include/linux/usb.h b/include/linux/usb.h index 7d72c4e0713c..d6a41841b93e 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -746,6 +746,8 @@ extern int usb_lock_device_for_reset(struct usb_device *udev, extern int usb_reset_device(struct usb_device *dev); extern void usb_queue_reset_device(struct usb_interface *dev); +extern struct device *usb_intf_get_dma_device(struct usb_interface *intf); + #ifdef CONFIG_ACPI extern int usb_acpi_set_power_state(struct usb_device *hdev, int index, bool enable); base-commit: b80182b9bffb51460e4a2ad7d96737ecd49126dc prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d -- 2.30.1

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[PATCH v7] drm: Use USB controller's DMA mask when importing dmabufs
by Thomas Zimmermann 03 Mar '21

03 Mar '21

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. Drivers should use DRM_GEM_SHMEM_DROVER_OPS_USB to initialize their instance of struct drm_driver. Tested by joining/mirroring displays of udl and radeon un der Gnome/X11. 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 <tzimmermann(a)suse.de> Fixes: 6eb0233ec2d0 ("usb: don't inherity DMA properties for USB devices") Tested-by: Pavel Machek <pavel(a)ucw.cz> Reviewed-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Acked-by: Christian König <christian.koenig(a)amd.com> Acked-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: <stable(a)vger.kernel.org> # v5.10+ Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> --- Documentation/gpu/todo.rst | 21 +++++++++++++++++++++ drivers/gpu/drm/tiny/gm12u320.c | 28 ++++++++++++++++++++++++++-- drivers/gpu/drm/udl/udl_drv.c | 17 +++++++++++++++++ drivers/gpu/drm/udl/udl_drv.h | 1 + drivers/gpu/drm/udl/udl_main.c | 9 +++++++++ drivers/usb/core/usb.c | 32 ++++++++++++++++++++++++++++++++ include/linux/usb.h | 2 ++ 7 files changed, 108 insertions(+), 2 deletions(-) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 0631b9b323d5..fdfd6a1081ec 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -571,6 +571,27 @@ Contact: Daniel Vetter Level: Intermediate +Remove automatic page mapping from dma-buf importing +---------------------------------------------------- + +When importing dma-bufs, the dma-buf and PRIME frameworks automatically map +imported pages into the importer's DMA area. drm_gem_prime_fd_to_handle() and +drm_gem_prime_handle_to_fd() require that importers call dma_buf_attach() +even if they never do actual device DMA, but only CPU access through +dma_buf_vmap(). This is a problem for USB devices, which do not support DMA +operations. + +To fix the issue, automatic page mappings should be removed from the +buffer-sharing code. Fixing this is a bit more involved, since the import/export +cache is also tied to &drm_gem_object.import_attach. Meanwhile we paper over +this problem for USB devices by fishing out the USB host controller device, as +long as that supports DMA. Otherwise importing can still needlessly fail. + +Contact: Thomas Zimmermann <tzimmermann(a)suse.de>, Daniel Vetter + +Level: Advanced + + Better Testing ============== diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c index 0b4f4f2af1ef..4fe372f43cf5 100644 --- a/drivers/gpu/drm/tiny/gm12u320.c +++ b/drivers/gpu/drm/tiny/gm12u320.c @@ -84,6 +84,7 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)"); struct gm12u320_device { struct drm_device dev; + struct device *dmadev; struct drm_simple_display_pipe pipe; struct drm_connector conn; unsigned char *cmd_buf; @@ -599,6 +600,22 @@ static const uint64_t gm12u320_pipe_modifiers[] = { DRM_FORMAT_MOD_INVALID }; +/* + * FIXME: Dma-buf sharing requires DMA support by the importing device. + * This function is a workaround to make USB devices work as well. + * See todo.rst for how to fix the issue in the dma-buf framework. + */ +static struct drm_gem_object *gm12u320_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct gm12u320_device *gm12u320 = to_gm12u320(dev); + + if (!gm12u320->dmadev) + return ERR_PTR(-ENODEV); + + return drm_gem_prime_import_dev(dev, dma_buf, gm12u320->dmadev); +} + DEFINE_DRM_GEM_FOPS(gm12u320_fops); static const struct drm_driver gm12u320_drm_driver = { @@ -612,6 +629,7 @@ static const struct drm_driver gm12u320_drm_driver = { .fops = &gm12u320_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .gem_prime_import = gm12u320_gem_prime_import, }; static const struct drm_mode_config_funcs gm12u320_mode_config_funcs = { @@ -638,12 +656,15 @@ static int gm12u320_usb_probe(struct usb_interface *interface, struct gm12u320_device, dev); if (IS_ERR(gm12u320)) return PTR_ERR(gm12u320); + dev = &gm12u320->dev; + + gm12u320->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev)); + if (!gm12u320->dmadev) + drm_warn(dev, "buffer sharing not supported"); /* not an error */ INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work); mutex_init(&gm12u320->fb_update.lock); - dev = &gm12u320->dev; - ret = drmm_mode_config_init(dev); if (ret) return ret; @@ -691,7 +712,10 @@ static int gm12u320_usb_probe(struct usb_interface *interface, static void gm12u320_usb_disconnect(struct usb_interface *interface) { struct drm_device *dev = usb_get_intfdata(interface); + struct gm12u320_device *gm12u320 = to_gm12u320(dev); + put_device(gm12u320->dmadev); + gm12u320->dmadev = NULL; drm_dev_unplug(dev); drm_atomic_helper_shutdown(dev); } diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 9269092697d8..5703277c6f52 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -32,6 +32,22 @@ static int udl_usb_resume(struct usb_interface *interface) return drm_mode_config_helper_resume(dev); } +/* + * FIXME: Dma-buf sharing requires DMA support by the importing device. + * This function is a workaround to make USB devices work as well. + * See todo.rst for how to fix the issue in the dma-buf framework. + */ +static struct drm_gem_object *udl_driver_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct udl_device *udl = to_udl(dev); + + if (!udl->dmadev) + return ERR_PTR(-ENODEV); + + return drm_gem_prime_import_dev(dev, dma_buf, udl->dmadev); +} + DEFINE_DRM_GEM_FOPS(udl_driver_fops); static const struct drm_driver driver = { @@ -40,6 +56,7 @@ static const struct drm_driver driver = { /* GEM hooks */ .fops = &udl_driver_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .gem_prime_import = udl_driver_gem_prime_import, .name = DRIVER_NAME, .desc = DRIVER_DESC, diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 875e73551ae9..cc16a13316e4 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -50,6 +50,7 @@ struct urb_list { struct udl_device { struct drm_device drm; struct device *dev; + struct device *dmadev; struct drm_simple_display_pipe display_pipe; diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index 0e2a376cb075..7c0338bcadea 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -315,6 +315,10 @@ int udl_init(struct udl_device *udl) DRM_DEBUG("\n"); + udl->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev)); + if (!udl->dmadev) + drm_warn(dev, "buffer sharing not supported"); /* not an error */ + mutex_init(&udl->gem_lock); if (!udl_parse_vendor_descriptor(udl)) { @@ -349,6 +353,11 @@ int udl_init(struct udl_device *udl) int udl_drop_usb(struct drm_device *dev) { + struct udl_device *udl = to_udl(dev); + udl_free_urb_list(dev); + put_device(udl->dmadev); + udl->dmadev = NULL; + return 0; } diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 8f07b0516100..a566bb494e24 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -748,6 +748,38 @@ void usb_put_intf(struct usb_interface *intf) } EXPORT_SYMBOL_GPL(usb_put_intf); +/** + * usb_intf_get_dma_device - acquire a reference on the usb interface's DMA endpoint + * @intf: the usb interface + * + * While a USB device cannot perform DMA operations by itself, many USB + * controllers can. A call to usb_intf_get_dma_device() returns the DMA endpoint + * for the given USB interface, if any. The returned device structure must be + * released with put_device(). + * + * See also usb_get_dma_device(). + * + * Returns: A reference to the usb interface's DMA endpoint; or NULL if none + * exists. + */ +struct device *usb_intf_get_dma_device(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct device *dmadev; + + if (!udev->bus) + return NULL; + + dmadev = get_device(udev->bus->sysdev); + if (!dmadev || !dmadev->dma_mask) { + put_device(dmadev); + return NULL; + } + + return dmadev; +} +EXPORT_SYMBOL_GPL(usb_intf_get_dma_device); + /* USB device locking * * USB devices and interfaces are locked using the semaphore in their diff --git a/include/linux/usb.h b/include/linux/usb.h index 7d72c4e0713c..d6a41841b93e 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -746,6 +746,8 @@ extern int usb_lock_device_for_reset(struct usb_device *udev, extern int usb_reset_device(struct usb_device *dev); extern void usb_queue_reset_device(struct usb_interface *dev); +extern struct device *usb_intf_get_dma_device(struct usb_interface *intf); + #ifdef CONFIG_ACPI extern int usb_acpi_set_power_state(struct usb_device *hdev, int index, bool enable); base-commit: b80182b9bffb51460e4a2ad7d96737ecd49126dc prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d -- 2.30.1

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re: drm/amd/display: Implement dmub trace event
by Colin Ian King 03 Mar '21

03 Mar '21

Hi, Static analysis on linux-next wit Coverity has found a potential null pointer dereference in commit: commit 70732504c53b2d3aae2cebc457515a304672d5bb Author: Yongqiang Sun <yongqiang.sun(a)amd.com> Date: Fri Feb 19 14:50:23 2021 -0500 drm/amd/display: Implement dmub trace event The analysis is as follows: 400 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, 401 const struct dmub_srv_hw_params *params) 402 { 403 struct dmub_fb *inst_fb = params->fb[DMUB_WINDOW_0_INST_CONST]; 404 struct dmub_fb *stack_fb = params->fb[DMUB_WINDOW_1_STACK]; 405 struct dmub_fb *data_fb = params->fb[DMUB_WINDOW_2_BSS_DATA]; 406 struct dmub_fb *bios_fb = params->fb[DMUB_WINDOW_3_VBIOS]; 407 struct dmub_fb *mail_fb = params->fb[DMUB_WINDOW_4_MAILBOX]; 408 struct dmub_fb *tracebuff_fb = params->fb[DMUB_WINDOW_5_TRACEBUFF]; 409 struct dmub_fb *fw_state_fb = params->fb[DMUB_WINDOW_6_FW_STATE]; 410 struct dmub_fb *scratch_mem_fb = params->fb[DMUB_WINDOW_7_SCRATCH_MEM]; 411 412 struct dmub_rb_init_params rb_params, outbox0_rb_params; 413 struct dmub_window cw0, cw1, cw2, cw3, cw4, cw5, cw6; 414 struct dmub_region inbox1, outbox1, outbox0; 415 1. Condition !dmub->sw_init, taking false branch. 416 if (!dmub->sw_init) 417 return DMUB_STATUS_INVALID; 418 419 dmub->fb_base = params->fb_base; 420 dmub->fb_offset = params->fb_offset; 421 dmub->psp_version = params->psp_version; 422 2. Condition dmub->hw_funcs.reset, taking true branch. 423 if (dmub->hw_funcs.reset) 424 dmub->hw_funcs.reset(dmub); 425 3. Condition inst_fb, taking true branch. 4. Condition data_fb, taking true branch. 426 if (inst_fb && data_fb) { 427 cw0.offset.quad_part = inst_fb->gpu_addr; 428 cw0.region.base = DMUB_CW0_BASE; 429 cw0.region.top = cw0.region.base + inst_fb->size - 1; 430 431 cw1.offset.quad_part = stack_fb->gpu_addr; 432 cw1.region.base = DMUB_CW1_BASE; 433 cw1.region.top = cw1.region.base + stack_fb->size - 1; 434 5. Condition params->load_inst_const, taking true branch. 6. Condition dmub->hw_funcs.backdoor_load, taking true branch. 435 if (params->load_inst_const && dmub->hw_funcs.backdoor_load) { 436 /** 437 * Read back all the instruction memory so we don't hang the 438 * DMCUB when backdoor loading if the write from x86 hasn't been 439 * flushed yet. This only occurs in backdoor loading. 440 */ 441 dmub_flush_buffer_mem(inst_fb); 442 dmub->hw_funcs.backdoor_load(dmub, &cw0, &cw1); 443 } 444 445 } 446 7. Condition inst_fb, taking true branch. 8. Condition data_fb, taking true branch. 9. Condition bios_fb, taking true branch. 10. Condition mail_fb, taking true branch. 11. Condition tracebuff_fb, taking false branch. 12. var_compare_op: Comparing tracebuff_fb to null implies that tracebuff_fb might be null. 447 if (inst_fb && data_fb && bios_fb && mail_fb && tracebuff_fb && 448 fw_state_fb && scratch_mem_fb) { 449 cw2.offset.quad_part = data_fb->gpu_addr; 450 cw2.region.base = DMUB_CW0_BASE + inst_fb->size; 451 cw2.region.top = cw2.region.base + data_fb->size; 452 453 cw3.offset.quad_part = bios_fb->gpu_addr; 454 cw3.region.base = DMUB_CW3_BASE; 455 cw3.region.top = cw3.region.base + bios_fb->size; 456 457 cw4.offset.quad_part = mail_fb->gpu_addr; 458 cw4.region.base = DMUB_CW4_BASE; 459 cw4.region.top = cw4.region.base + mail_fb->size; 460 461 /** 462 * Doubled the mailbox region to accomodate inbox and outbox. 463 * Note: Currently, currently total mailbox size is 16KB. It is split 464 * equally into 8KB between inbox and outbox. If this config is 465 * changed, then uncached base address configuration of outbox1 466 * has to be updated in funcs->setup_out_mailbox. 467 */ 468 inbox1.base = cw4.region.base; 469 inbox1.top = cw4.region.base + DMUB_RB_SIZE; 470 outbox1.base = inbox1.top; 471 outbox1.top = cw4.region.top; 472 473 cw5.offset.quad_part = tracebuff_fb->gpu_addr; 474 cw5.region.base = DMUB_CW5_BASE; 475 cw5.region.top = cw5.region.base + tracebuff_fb->size; 476 477 outbox0.base = DMUB_REGION5_BASE + TRACE_BUFFER_ENTRY_OFFSET; 478 outbox0.top = outbox0.base + sizeof(struct dmcub_trace_buf_entry) * PERF_TRACE_MAX_ENTRY; 479 480 481 cw6.offset.quad_part = fw_state_fb->gpu_addr; 482 cw6.region.base = DMUB_CW6_BASE; 483 cw6.region.top = cw6.region.base + fw_state_fb->size; 484 485 dmub->fw_state = fw_state_fb->cpu_addr; 486 487 dmub->scratch_mem_fb = *scratch_mem_fb; 488 489 if (dmub->hw_funcs.setup_windows) 490 dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4, 491 &cw5, &cw6); 492 493 if (dmub->hw_funcs.setup_outbox0) 494 dmub->hw_funcs.setup_outbox0(dmub, &outbox0); 495 496 if (dmub->hw_funcs.setup_mailbox) 497 dmub->hw_funcs.setup_mailbox(dmub, &inbox1); 498 if (dmub->hw_funcs.setup_out_mailbox) 499 dmub->hw_funcs.setup_out_mailbox(dmub, &outbox1); 500 } 501 13. Condition mail_fb, taking true branch. 502 if (mail_fb) { 503 dmub_memset(&rb_params, 0, sizeof(rb_params)); 504 rb_params.ctx = dmub; 505 rb_params.base_address = mail_fb->cpu_addr; 506 rb_params.capacity = DMUB_RB_SIZE; 507 508 dmub_rb_init(&dmub->inbox1_rb, &rb_params); 509 510 // Initialize outbox1 ring buffer 511 rb_params.ctx = dmub; 512 rb_params.base_address = (void *) ((uint64_t) (mail_fb->cpu_addr) + DMUB_RB_SIZE); 513 rb_params.capacity = DMUB_RB_SIZE; 514 dmub_rb_init(&dmub->outbox1_rb, &rb_params); 515 516 } 517 518 dmub_memset(&outbox0_rb_params, 0, sizeof(outbox0_rb_params)); 519 outbox0_rb_params.ctx = dmub; Dereference after null check (FORWARD_NULL) 14. var_deref_op: Dereferencing null pointer tracebuff_fb. 520 outbox0_rb_params.base_address = (void *)((uint64_t)(tracebuff_fb->cpu_addr) + TRACE_BUFFER_ENTRY_OFFSET); 521 outbox0_rb_params.capacity = sizeof(struct dmcub_trace_buf_entry) * PERF_TRACE_MAX_ENTRY; The check on line 447 implies that tracebuf_fb could possibly be null, however on line 520 tracebuf_fb is being dereferenced, so there is a possibly (perhaps unlikely) null pointer dereference issue here. Colin 522 dmub_rb_init(&dmub->outbox0_rb, &outbox0_rb_params);

1 0

[PULL] drm-misc-next
by Maxime Ripard 03 Mar '21

03 Mar '21

Hi Dave, Daniel, Here's the first round of drm-misc-next changes for 5.13. Maxime drm-misc-next-2021-03-03: drm-misc-next for 5.13: UAPI Changes: Cross-subsystem Changes: Core Changes: - %p4cc printk format modifier - atomic: introduce drm_crtc_commit_wait, rework atomic plane state helpers to take the drm_commit_state structure - dma-buf: heaps rework to return a struct dma_buf - simple-kms: Add plate state helpers - ttm: debugfs support, removal of sysfs Driver Changes: - Convert drivers to shadow plane helpers - arc: Move to drm/tiny - ast: cursor plane reworks - gma500: Remove TTM and medfield support - mxsfb: imx8mm support - panfrost: MMU IRQ handling rework - qxl: rework to better handle resources deallocation, locking - sun4i: Add alpha properties for UI and VI layers - vc4: RPi4 CEC support - vmwgfx: doc cleanup The following changes since commit c31eb10fd5aee124b78ce72ebf7d0cd13fca6095: drm/amdgpu: Remove accidentally added small unused hunk. (2021-01-19 11:18:39 +0100) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-misc tags/drm-misc-next-2021-03-03 for you to fetch changes up to 762949bb1da78941b25e63f7e952af037eee15a9: drm: fix drm_mode_create_blob comment (2021-03-02 20:43:34 +0100) ---------------------------------------------------------------- drm-misc-next for 5.13: UAPI Changes: Cross-subsystem Changes: Core Changes: - %p4cc printk format modifier - atomic: introduce drm_crtc_commit_wait, rework atomic plane state helpers to take the drm_commit_state structure - dma-buf: heaps rework to return a struct dma_buf - simple-kms: Add plate state helpers - ttm: debugfs support, removal of sysfs Driver Changes: - Convert drivers to shadow plane helpers - arc: Move to drm/tiny - ast: cursor plane reworks - gma500: Remove TTM and medfield support - mxsfb: imx8mm support - panfrost: MMU IRQ handling rework - qxl: rework to better handle resources deallocation, locking - sun4i: Add alpha properties for UI and VI layers - vc4: RPi4 CEC support - vmwgfx: doc cleanup ---------------------------------------------------------------- Ahmed S. Darwish (2): video: omap: Remove in_interrupt() usage. video: omapfb: Remove WARN_ON(in_interrupt()). Bernard Zhao (1): drm/vc4: remove unneeded variable: "ret" Bjorn Andersson (1): dt-bindings: dp-connector: Drop maxItems from -supply Boris Brezillon (3): drm/panfrost: Clear MMU irqs before handling the fault drm/panfrost: Don't try to map pages that are already mapped drm/panfrost: Stay in the threaded MMU IRQ handler until we've handled all IRQs Christian Hewitt (1): drm/lima: add governor data with pre-defined thresholds Christian König (13): drm/ttm: add debugfs directory v2 drm/ttm: add a debugfs file for the global page pools drm/ttm: add debugfs entry to test pool shrinker v2 drm/ttm: optimize ttm pool shrinker a bit drm/syncobj: make lockdep complain on WAIT_FOR_SUBMIT v3 drm/ttm: device naming cleanup drm/v3d/v3d_sched: fix scheduler callbacks return status drm/scheduler: provide scheduler score externally drm/ttm: fix removal of bo_count sysfs file drm/ttm: rework ttm_tt page limit v4 drm/ttm: move memory accounting into vmwgfx v4 drm/ttm: drop sysfs directory drm/vram-helper: cleanup drm_gem_vram_bo_driver_move_notify Colin Ian King (1): drm/mgag200: make a const array static, makes object smaller Dan Carpenter (2): drm/vmwgfx/vmwgfx_drv: Fix an error path in vmw_setup_pci_resources() drm/virtio: fix an error code in virtio_gpu_init() Daniel Vetter (28): drm: Update todo.rst drm/todo: Add entry for moving to dma_resv_lock drm/vblank: Document drm_crtc_vblank_restore constraints drm/tidss: Annotate dma-fence critical section in commit path drm/tegra: Annotate dma-fence critical section in commit path drm/omapdrm: Annotate dma-fence critical section in commit path drm/atmel: Use drm_atomic_helper_commit drm/malidp: Annotate dma-fence critical section in commit path drm/komeda: Annotate dma-fence critical section in commit path drm/vkms: Annotate vblank timer drm/arc: Switch to devm_drm_dev_alloc drm/arc: Stop using drm_device->dev_private drm/arc: Delete arcpgu_priv->fb drm/arc: Embedded a drm_simple_display_pipe drm/arc: Embedd a drm_connector for sim case drm/arc: Drop surplus connector registration drm/arc: Use drmm_mode_config_cleanup drm/arc: Align with simple pipe helpers drm/arc: Convert to drm_simple_kms_pipe_helper drm/arc: Drop crtc check in arc_pgu_update drm/arc: Inline arcpgu_crtc.c drm/arc: Inline arcpgu_drm_hdmi_init drm/arc: Inline remaining files drm/arc: Initialize sim connector before display pipe drm/arc: Move to drm/tiny drm/compat: Clear bounce structures drm/compat: more dummy implementations drm/arcpgu: Really delete file Dario Binacchi (1): drm/tilcdc: fix raster control register setting Dom Cobley (5): drm/vc4: hdmi: Move hdmi reset to bind drm/vc4: hdmi: Fix register offset with longer CEC messages drm/vc4: hdmi: Fix up CEC registers drm/vc4: hdmi: Restore cec physical address on reconnect drm/vc4: hdmi: Remove cec_available flag Gerd Hoffmann (20): Revert "drm/qxl: do not run release if qxl failed to init" drm/qxl: use drmm_mode_config_init drm/qxl: unpin release objects drm/qxl: release shadow on shutdown drm/qxl: properly pin/unpin shadow drm/qxl: handle shadow in primary destroy drm/qxl: properly free qxl releases drm/qxl: simplify qxl_fence_wait drm/qxl: allocate dumb buffers in ram drm/qxl: properly handle device init failures drm/qxl: more fence wait rework drm/qxl: use ttm bo priorities drm/qxl: fix lockdep issue in qxl_alloc_release_reserved drm/qxl: rename qxl_bo_kmap -> qxl_bo_vmap_locked drm/qxl: add qxl_bo_vmap/qxl_bo_vunmap drm/qxl: fix prime vmap drm/qxl: fix monitors object vmap drm/qxl: move shadow handling to new qxl_prepare_shadow() drm/qxl: rework cursor plane drm/qxl: add lock asserts to qxl_bo_vmap_locked + qxl_bo_vunmap_locked Imre Deak (4): drm/dp_mst: Don't cache EDIDs for physical ports drm/dp_mst: Remove redundant tile property setting drm/dp_mst: Use DP_MST_LOGICAL_PORT_0 instead of magic number drm/dp_mst: Tune down the WARN modesetting a port with full_pbn=0 Jan Beulich (1): drm/xen: adjust Kconfig Jared Baldridge (1): drm: Added orientation quirk for OneGX1 Pro Joe Perches (1): dma-buf: Avoid comma separated statements Joel Stanley (2): drm/aspeed: Look up syscon by phandle drm/aspeed: Use dt matching for default register values John Stultz (4): dma-buf: system_heap: Make sure to return an error if we abort dma-buf: heaps: Rework heap allocation hooks to return struct dma_buf instead of fd dma-buf: dma-heap: Provide accessor to get heap name dma-buf: heaps: Fix the name used when exporting dmabufs to be the actual heap name Joseph Schulte (1): drm: replace drm_modeset_lock_all() in drm_client_modeset_dpms_legacy() Julia Lawall (1): drm: use getter/setter functions Kai-Heng Feng (1): efifb: Ensure graphics device for efifb stays at PCI D0 Laurent Pinchart (2): dt-bindings: display: mxsfb: Convert binding to YAML dt-bindings: display: mxsfb: Add and fix compatible strings Lauri Kasanen (1): video: fbdev: simplefb: Add "r5g5b5a1" mode Lee Jones (31): drm/vmwgfx/vmwgfx_execbuf: Fix some kernel-doc related issues drm/vmwgfx/vmwgfx_kms: Remove unused variable 'ret' from 'vmw_du_primary_plane_atomic_check()' drm/vmwgfx/vmwgfx_kms: Mark vmw_{cursor,primary}_plane_formats as __maybe_unused drm/vmwgfx/vmwgfx_drv: Fix some kernel-doc misdemeanours drm/vmwgfx/vmwgfx_ioctl: Provide missing '@' sign required by kernel-doc drm/vmwgfx/vmwgfx_resource: Fix worthy function headers demote some others drm/vmwgfx/vmwgfx_ttm_buffer: Supply some missing parameter descriptions drm/vmwgfx/vmwgfx_fifo: Demote non-conformant kernel-doc header drm/vmwgfx/vmwgfx_ldu: Supply descriptions for 'state' function parameter drm/vmwgfx/vmwgfx_kms: Update worthy function headers and demote others drm/vmwgfx/vmwgfx_overlay: Demote kernel-doc abuses to standard comment blocks drm/vmwgfx/vmwgfx_fence: Add, remove and demote various documentation params/headers drm/vmwgfx/vmwgfx_bo: Remove superfluous param description and supply another drm/vmwgfx/vmwgfx_context: Demote kernel-doc abuses drm/vmwgfx/vmwgfx_scrn: Demote unworthy kernel-doc headers and update others drm/vmwgfx/vmwgfx_surface: Fix some kernel-doc related issues drm/vmwgfx/vmwgfx_cmdbuf_res: Rename param description and remove another drm/vmwgfx/vmwgfx_shader: Demote kernel-doc abuses and fix-up worthy headers drm/vmwgfx/vmwgfx_cmdbuf: Fix a bunch of missing or incorrectly formatted/named params drm/vmwgfx/vmwgfx_cmdbuf_res: Remove unused variable 'ret' drm/vmwgfx/vmwgfx_stdu: Add some missing param/member descriptions drm/vmwgfx/vmwgfx_cmdbuf: Fix misnaming of 'headers' should be plural drm/vmwgfx/vmwgfx_cotable: Fix a couple of simple documentation problems drm/vmwgfx/vmwgfx_so: Add description for 'vmw_view's 'rcu' member drm/vmwgfx/vmwgfx_binding: Provide some missing param descriptions and remove others drm/vmwgfx/vmwgfx_msg: Fix misspelling of 'msg' drm/vmwgfx/vmwgfx_blit: Add description for 'vmw_bo_cpu_blit's 'diff' param drm/vmwgfx/vmwgfx_validation: Add some missing struct member/function param descriptions drm/vmwgfx/ttm_object: Demote half-assed headers and fix-up another drm/vmwgfx/vmwgfx_thp: Add description for 'vmw_thp_manager's member 'manager' drm/vmwgfx/ttm_object: Reorder header to immediately precede its struct Lionel Landwerlin (1): drm: fix drm_mode_create_blob comment Luben Tuikov (1): drm/scheduler: Job timeout handler returns status (v3) Lukasz Luba (2): drm/panfrost: Add governor data with pre-defined thresholds drm/lima: Use delayed timer as default in devfreq profile Marek Vasut (2): dt-bindings: display: mxsfb: Add compatible for i.MX8MM drm/stm: Fix bus_flags handling Mario Kleiner (1): drm: Fix HDMI_STATIC_METADATA_TYPE1 constant Maxime Ripard (19): drm: Introduce a drm_crtc_commit_wait helper drm/vc4: hdmi: Compute the CEC clock divider from the clock rate drm/vc4: hdmi: Update the CEC clock divider on HSM rate change drm/vc4: hdmi: Introduce a CEC clock drm/vc4: hdmi: Split the interrupt handlers drm/vc4: hdmi: Support BCM2711 CEC interrupt setup drm/vc4: hdmi: Don't register the CEC adapter if there's no interrupts dt-binding: display: bcm2711-hdmi: Add CEC and hotplug interrupts drm/atomic: Pass the full state to planes async atomic check and update drm: Rename plane atomic_check state names drm/atmel-hlcdc: Rename custom plane state variable drm/atomic: Pass the full state to planes atomic_check drm: Use the state pointer directly in planes atomic_check drm: Use state helper instead of plane state pointer in atomic_check drm: Store new plane state in a variable for atomic_update and disable drm: Rename plane->state variables in atomic update and disable drm/atomic: Pass the full state to planes atomic disable and update drm: Use state helper instead of the plane state pointer drm/todo: Remove the drm_atomic_state todo item Menglong Dong (1): drm/omap: dsi: fix unreachable code in dsi_vc_send_short() Noralf Trønnes (1): drm/shmem-helpers: vunmap: Don't put pages for dma-buf Patrik Jakobsson (6): drm/gma500/cdv: Remove unused code for crt init drm/gma500: Remove unused DPST support drm/gma500/cdv: Remove unused tv out paths drm/gma500: Unify crtc helpers drm/gma500: psb_spank() doesn't need it's own file drm/gma500: Never wait for blits Peter Robinson (1): video: fbdev: simplefb: Fix info message during probe Qinglang Miao (1): drm/lima: fix reference leak in lima_pm_busy Quanyang Wang (1): drm/tilcdc: send vblank event when disabling crtc Rikard Falkeborn (3): drm/amdgpu/ttm: constify static vm_operations_struct drm/radeon/ttm: constify static vm_operations_struct drm/nouveau/ttm: constify static vm_operations_struct Roland Scheidegger (1): drm/vmwgfx: add some 16:9 / 16:10 default resolutions Roman Stratiienko (2): drm/sun4i: Add alpha property for sun8i UI layer drm/sun4i: Add alpha property for sun8i and sun50i VI layer Sakari Ailus (3): lib/vsprintf: Add support for printing V4L2 and DRM fourccs v4l: ioctl: Use %p4cc printk modifier to print FourCC codes drm: Switch to %p4cc format modifier Sebastian Andrzej Siewior (2): drm/gma500: Remove in_atomic() usage. video: fbdev: amba-clcd: Always use msleep() for waiting Simon Ser (2): drm/doc: fix drm_plane_type docs drm/doc: document the type plane property Thomas Zimmermann (26): drm/vmwgfx: Remove reference to struct drm_device.pdev drm/gma500: Remove Medfield support drm/gma500: Drop DRM_GMA3600 config option drm/gma500: Remove CONFIG_X86 conditionals from source files drm/gma500: Remove dependency on TTM drm/simple-kms: Add plane-state helpers drm/gem: Export drm_gem_vmap() and drm_gem_vunmap() drm: Add additional atomic helpers for shadow-buffered planes drm/mgag200: Move vmap out of commit tail drm/cirrus: Move vmap out of commit tail drm/gm12u320: Move vmap out of commit tail drm/udl: Move vmap out of commit tail drm/gma500: Drop DRM_GMA600 config option drm/gem: Export helpers for shadow-buffered planes drm/vboxvideo: Implement cursor plane with struct drm_shadow_plane_state drm/ast: Add constants for VGACRCB register bits drm/ast: Fix invalid usage of AST_MAX_HWC_WIDTH in cursor atomic_check drm/ast: Initialize planes in helper functions drm/ast: Allocate HW cursor BOs during cursor-plane initialization drm/ast: Inline ast cursor-update functions into modesetting code drm/ast: Add cursor-plane data structure drm/ast: Store cursor BOs in cursor plane drm/ast: Map HW cursor BOs permanently drm/ast: Store each HW cursor offset after pinning the rsp BO drm/ast: Move all of the cursor-update functionality to atomic_update drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers Tian Tao (2): drm/tilcdc: replace spin_lock_irqsave by spin_lock in hard IRQ drm/drv: Remove initialization of static variables Tong Zhang (2): drm/qxl: do not run release if qxl failed to init drm/ast: fix memory leak when unload the driver Veera Sundaram Sankaran (2): dma-fence: allow signaling drivers to set fence timestamp drm/drm_vblank: set the dma-fence timestamp during send_vblank_event Wayne Lin (2): drm/dp_mst: Revise broadcast msg lct & lcr drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast Ye Bin (1): drm/nouveau: remove set but not used variable ‘pdev’ in nouveau_bios_init Zack Rusin (5): drm/vmwgfx: Make sure we unpin no longer needed buffers drm/vmwgfx: Fix some memory leaks on errors drm/vmwgfx: Correctly set the name of the preferred mode drm/vmwgfx: Remove pointless code drm/vmwgfx: Bump the minor version and cleanup logging xinhui pan (1): drm/ttm: Do not add non-system domain BO into swap list Documentation/core-api/printk-formats.rst | 18 + .../bindings/display/brcm,bcm2711-hdmi.yaml | 20 +- .../bindings/display/connector/dp-connector.yaml | 1 - .../devicetree/bindings/display/fsl,lcdif.yaml | 110 +++ .../devicetree/bindings/display/mxsfb.txt | 87 -- Documentation/gpu/drm-kms-helpers.rst | 12 + Documentation/gpu/todo.rst | 93 +- MAINTAINERS | 4 +- drivers/dma-buf/dma-fence.c | 70 +- drivers/dma-buf/dma-heap.c | 26 +- drivers/dma-buf/heaps/cma_heap.c | 23 +- drivers/dma-buf/heaps/system_heap.c | 26 +- drivers/dma-buf/st-dma-fence.c | 7 +- drivers/gpu/drm/Kconfig | 2 - drivers/gpu/drm/Makefile | 4 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c | 6 +- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 16 +- drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 6 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 8 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 28 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 +- drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 5 +- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 5 +- drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 5 +- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 5 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 28 +- drivers/gpu/drm/arc/Kconfig | 10 - drivers/gpu/drm/arc/Makefile | 3 - drivers/gpu/drm/arc/arcpgu.h | 37 - drivers/gpu/drm/arc/arcpgu_crtc.c | 217 ----- drivers/gpu/drm/arc/arcpgu_drv.c | 224 ----- drivers/gpu/drm/arc/arcpgu_hdmi.c | 48 - drivers/gpu/drm/arc/arcpgu_regs.h | 31 - drivers/gpu/drm/arc/arcpgu_sim.c | 108 --- .../drm/arm/display/komeda/komeda_format_caps.h | 11 - .../drm/arm/display/komeda/komeda_framebuffer.c | 4 +- drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 3 + drivers/gpu/drm/arm/display/komeda/komeda_plane.c | 21 +- drivers/gpu/drm/arm/hdlcd_crtc.c | 30 +- drivers/gpu/drm/arm/malidp_drv.c | 3 + drivers/gpu/drm/arm/malidp_mw.c | 7 +- drivers/gpu/drm/arm/malidp_planes.c | 79 +- drivers/gpu/drm/armada/armada_overlay.c | 113 ++- drivers/gpu/drm/armada/armada_plane.c | 115 ++- drivers/gpu/drm/armada/armada_plane.h | 2 +- drivers/gpu/drm/aspeed/aspeed_gfx.h | 8 +- drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 15 +- drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 69 +- drivers/gpu/drm/ast/Makefile | 3 +- drivers/gpu/drm/ast/ast_cursor.c | 286 ------ drivers/gpu/drm/ast/ast_drv.c | 2 + drivers/gpu/drm/ast/ast_drv.h | 47 +- drivers/gpu/drm/ast/ast_mode.c | 396 ++++++-- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 107 +- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 7 - drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 135 +-- .../gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 2 +- drivers/gpu/drm/drm_atomic.c | 47 +- drivers/gpu/drm/drm_atomic_helper.c | 75 +- drivers/gpu/drm/drm_client_modeset.c | 7 +- drivers/gpu/drm/drm_crtc.c | 7 +- drivers/gpu/drm/drm_dp_mst_topology.c | 36 +- drivers/gpu/drm/drm_drv.c | 2 +- drivers/gpu/drm/drm_file.c | 68 +- drivers/gpu/drm/drm_framebuffer.c | 11 +- drivers/gpu/drm/drm_gem.c | 2 + drivers/gpu/drm/drm_gem_atomic_helper.c | 432 +++++++++ drivers/gpu/drm/drm_gem_framebuffer_helper.c | 63 -- drivers/gpu/drm/drm_gem_shmem_helper.c | 7 +- drivers/gpu/drm/drm_gem_vram_helper.c | 42 +- drivers/gpu/drm/drm_ioc32.c | 26 +- drivers/gpu/drm/drm_mipi_dbi.c | 5 +- drivers/gpu/drm/drm_panel_orientation_quirks.c | 14 + drivers/gpu/drm/drm_plane.c | 66 +- drivers/gpu/drm/drm_simple_kms_helper.c | 50 +- drivers/gpu/drm/drm_syncobj.c | 12 + drivers/gpu/drm/drm_vblank.c | 34 +- drivers/gpu/drm/etnaviv/etnaviv_sched.c | 9 +- drivers/gpu/drm/exynos/exynos_drm_plane.c | 20 +- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 24 +- drivers/gpu/drm/gma500/Kconfig | 28 +- drivers/gpu/drm/gma500/Makefile | 52 +- drivers/gpu/drm/gma500/accel_2d.c | 60 -- drivers/gpu/drm/gma500/blitter.c | 43 - drivers/gpu/drm/gma500/blitter.h | 16 - drivers/gpu/drm/gma500/cdv_device.c | 2 +- drivers/gpu/drm/gma500/cdv_device.h | 1 - drivers/gpu/drm/gma500/cdv_intel_crt.c | 15 +- drivers/gpu/drm/gma500/cdv_intel_display.c | 23 +- drivers/gpu/drm/gma500/cdv_intel_hdmi.c | 4 - drivers/gpu/drm/gma500/gtt.c | 11 - drivers/gpu/drm/gma500/intel_gmbus.c | 4 +- drivers/gpu/drm/gma500/mdfld_device.c | 564 ----------- drivers/gpu/drm/gma500/mdfld_dsi_dpi.c | 1017 -------------------- drivers/gpu/drm/gma500/mdfld_dsi_dpi.h | 79 -- drivers/gpu/drm/gma500/mdfld_dsi_output.c | 603 ------------ drivers/gpu/drm/gma500/mdfld_dsi_output.h | 377 -------- drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c | 679 ------------- drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.h | 80 -- drivers/gpu/drm/gma500/mdfld_intel_display.c | 966 ------------------- drivers/gpu/drm/gma500/mdfld_output.c | 74 -- drivers/gpu/drm/gma500/mdfld_output.h | 76 -- drivers/gpu/drm/gma500/mdfld_tmd_vid.c | 197 ---- drivers/gpu/drm/gma500/mdfld_tpo_vid.c | 83 -- drivers/gpu/drm/gma500/mmu.c | 21 - drivers/gpu/drm/gma500/oaktrail_device.c | 2 +- drivers/gpu/drm/gma500/psb_device.c | 2 +- drivers/gpu/drm/gma500/psb_drv.c | 50 +- drivers/gpu/drm/gma500/psb_drv.h | 72 +- drivers/gpu/drm/gma500/psb_intel_display.c | 2 +- drivers/gpu/drm/gma500/psb_intel_reg.h | 44 +- drivers/gpu/drm/gma500/psb_irq.c | 182 +--- drivers/gpu/drm/gma500/psb_irq.h | 6 - drivers/gpu/drm/gma500/psb_reg.h | 14 - drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c | 805 ---------------- drivers/gpu/drm/gma500/tc35876x-dsi-lvds.h | 38 - drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 39 +- drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 47 +- drivers/gpu/drm/i915/display/intel_display.c | 14 +- .../gpu/drm/i915/display/intel_display_debugfs.c | 30 +- drivers/gpu/drm/i915/display/intel_sprite.c | 6 +- drivers/gpu/drm/imx/dcss/dcss-plane.c | 64 +- drivers/gpu/drm/imx/ipuv3-plane.c | 92 +- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 55 +- drivers/gpu/drm/ingenic/ingenic-ipu.c | 77 +- drivers/gpu/drm/kmb/kmb_plane.c | 50 +- drivers/gpu/drm/lima/lima_devfreq.c | 11 +- drivers/gpu/drm/lima/lima_devfreq.h | 2 + drivers/gpu/drm/lima/lima_sched.c | 8 +- drivers/gpu/drm/mcde/mcde_display.c | 10 +- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 2 +- drivers/gpu/drm/mediatek/mtk_drm_plane.c | 101 +- drivers/gpu/drm/meson/meson_overlay.c | 31 +- drivers/gpu/drm/meson/meson_plane.c | 51 +- drivers/gpu/drm/mgag200/mgag200_mode.c | 25 +- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 8 +- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 54 +- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h | 2 +- drivers/gpu/drm/msm/disp/mdp4/mdp4_plane.c | 18 +- drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 57 +- drivers/gpu/drm/msm/msm_atomic.c | 4 +- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 23 +- drivers/gpu/drm/nouveau/dispnv50/wndw.c | 8 +- drivers/gpu/drm/nouveau/nouveau_bios.c | 2 - drivers/gpu/drm/nouveau/nouveau_bo.c | 27 +- drivers/gpu/drm/nouveau/nouveau_bo.h | 2 +- drivers/gpu/drm/nouveau/nouveau_display.c | 9 +- drivers/gpu/drm/nouveau/nouveau_drv.h | 3 +- drivers/gpu/drm/nouveau/nouveau_sgdma.c | 6 +- drivers/gpu/drm/nouveau/nouveau_ttm.c | 12 +- drivers/gpu/drm/nouveau/nouveau_ttm.h | 8 +- drivers/gpu/drm/omapdrm/dss/dsi.c | 7 +- drivers/gpu/drm/omapdrm/omap_drv.c | 9 +- drivers/gpu/drm/omapdrm/omap_plane.c | 56 +- drivers/gpu/drm/panel/panel-lvds.c | 2 +- drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 4 +- drivers/gpu/drm/panel/panel-simple.c | 2 +- drivers/gpu/drm/panfrost/panfrost_devfreq.c | 10 +- drivers/gpu/drm/panfrost/panfrost_devfreq.h | 2 + drivers/gpu/drm/panfrost/panfrost_job.c | 11 +- drivers/gpu/drm/panfrost/panfrost_mmu.c | 39 +- drivers/gpu/drm/pl111/pl111_display.c | 4 +- drivers/gpu/drm/qxl/qxl_cmd.c | 3 +- drivers/gpu/drm/qxl/qxl_display.c | 368 ++++--- drivers/gpu/drm/qxl/qxl_draw.c | 8 +- drivers/gpu/drm/qxl/qxl_drv.h | 6 +- drivers/gpu/drm/qxl/qxl_dumb.c | 2 +- drivers/gpu/drm/qxl/qxl_gem.c | 2 +- drivers/gpu/drm/qxl/qxl_image.c | 2 +- drivers/gpu/drm/qxl/qxl_irq.c | 1 + drivers/gpu/drm/qxl/qxl_kms.c | 32 +- drivers/gpu/drm/qxl/qxl_object.c | 57 +- drivers/gpu/drm/qxl/qxl_object.h | 7 +- drivers/gpu/drm/qxl/qxl_prime.c | 4 +- drivers/gpu/drm/qxl/qxl_release.c | 88 +- drivers/gpu/drm/qxl/qxl_ttm.c | 19 +- drivers/gpu/drm/radeon/atombios_crtc.c | 10 +- drivers/gpu/drm/radeon/radeon.h | 6 +- drivers/gpu/drm/radeon/radeon_object.c | 10 +- drivers/gpu/drm/radeon/radeon_ttm.c | 40 +- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 17 +- drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 20 +- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 81 +- drivers/gpu/drm/rockchip/rockchip_lvds.c | 2 +- drivers/gpu/drm/scheduler/sched_entity.c | 2 +- drivers/gpu/drm/scheduler/sched_main.c | 22 +- drivers/gpu/drm/sti/sti_cursor.c | 41 +- drivers/gpu/drm/sti/sti_gdp.c | 77 +- drivers/gpu/drm/sti/sti_hqvdp.c | 75 +- drivers/gpu/drm/stm/ltdc.c | 84 +- drivers/gpu/drm/sun4i/sun4i_backend.c | 6 +- drivers/gpu/drm/sun4i/sun4i_layer.c | 15 +- drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 59 +- drivers/gpu/drm/sun4i/sun8i_ui_layer.h | 5 + drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 78 +- drivers/gpu/drm/sun4i/sun8i_vi_layer.h | 11 + drivers/gpu/drm/tegra/dc.c | 116 ++- drivers/gpu/drm/tegra/drm.c | 3 + drivers/gpu/drm/tegra/hub.c | 62 +- drivers/gpu/drm/tegra/plane.c | 4 +- drivers/gpu/drm/tidss/tidss_kms.c | 4 + drivers/gpu/drm/tidss/tidss_plane.c | 53 +- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 20 +- drivers/gpu/drm/tilcdc/tilcdc_plane.c | 46 +- drivers/gpu/drm/tiny/Kconfig | 10 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/arcpgu.c | 434 +++++++++ drivers/gpu/drm/tiny/cirrus.c | 43 +- drivers/gpu/drm/tiny/gm12u320.c | 28 +- drivers/gpu/drm/tiny/hx8357d.c | 4 +- drivers/gpu/drm/tiny/ili9225.c | 4 +- drivers/gpu/drm/tiny/ili9341.c | 4 +- drivers/gpu/drm/tiny/ili9486.c | 4 +- drivers/gpu/drm/tiny/mi0283qt.c | 4 +- drivers/gpu/drm/tiny/repaper.c | 3 +- drivers/gpu/drm/tiny/st7586.c | 4 +- drivers/gpu/drm/tiny/st7735r.c | 4 +- drivers/gpu/drm/ttm/Makefile | 7 +- drivers/gpu/drm/ttm/ttm_agp_backend.c | 2 +- drivers/gpu/drm/ttm/ttm_bo.c | 335 ++----- drivers/gpu/drm/ttm/ttm_bo_util.c | 25 +- drivers/gpu/drm/ttm/ttm_bo_vm.c | 24 +- drivers/gpu/drm/ttm/ttm_device.c | 205 ++++ drivers/gpu/drm/ttm/ttm_execbuf_util.c | 8 +- drivers/gpu/drm/ttm/ttm_module.c | 54 +- drivers/gpu/drm/ttm/ttm_module.h | 8 +- drivers/gpu/drm/ttm/ttm_pool.c | 169 ++-- drivers/gpu/drm/ttm/ttm_range_manager.c | 4 +- drivers/gpu/drm/ttm/ttm_resource.c | 4 +- drivers/gpu/drm/ttm/ttm_tt.c | 129 ++- drivers/gpu/drm/tve200/tve200_display.c | 4 +- drivers/gpu/drm/udl/udl_modeset.c | 34 +- drivers/gpu/drm/v3d/v3d_sched.c | 42 +- drivers/gpu/drm/vboxvideo/vbox_mode.c | 82 +- drivers/gpu/drm/vc4/vc4_gem.c | 3 +- drivers/gpu/drm/vc4/vc4_hdmi.c | 223 ++++- drivers/gpu/drm/vc4/vc4_hdmi.h | 11 +- drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 4 +- drivers/gpu/drm/vc4/vc4_kms.c | 17 +- drivers/gpu/drm/vc4/vc4_plane.c | 74 +- drivers/gpu/drm/virtio/virtgpu_kms.c | 1 + drivers/gpu/drm/virtio/virtgpu_plane.c | 19 +- drivers/gpu/drm/vkms/vkms_crtc.c | 8 +- drivers/gpu/drm/vkms/vkms_plane.c | 30 +- drivers/gpu/drm/vkms/vkms_writeback.c | 7 +- drivers/gpu/drm/vmwgfx/Makefile | 2 +- drivers/gpu/drm/{ttm => vmwgfx}/ttm_memory.c | 22 +- .../ttm => drivers/gpu/drm/vmwgfx}/ttm_memory.h | 5 +- drivers/gpu/drm/vmwgfx/ttm_object.c | 25 +- drivers/gpu/drm/vmwgfx/ttm_object.h | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_binding.c | 9 +- drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 5 +- drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 28 +- drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c | 14 +- drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c | 8 +- drivers/gpu/drm/vmwgfx/vmwgfx_context.c | 6 +- drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 59 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 10 +- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 20 +- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 18 +- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 103 +- drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 10 +- drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 14 +- drivers/gpu/drm/vmwgfx/vmwgfx_mob.c | 4 + drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c | 16 +- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 12 +- drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 20 +- drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 10 +- drivers/gpu/drm/vmwgfx/vmwgfx_so.c | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 21 +- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 17 +- drivers/gpu/drm/vmwgfx/vmwgfx_thp.c | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 44 +- drivers/gpu/drm/vmwgfx/vmwgfx_validation.c | 5 +- drivers/gpu/drm/xen/Kconfig | 10 +- drivers/gpu/drm/xen/xen_drm_front_kms.c | 3 +- drivers/gpu/drm/xlnx/zynqmp_disp.c | 32 +- drivers/gpu/drm/zte/zx_plane.c | 49 +- drivers/media/v4l2-core/v4l2-ioctl.c | 85 +- drivers/video/fbdev/amba-clcd.c | 17 +- drivers/video/fbdev/efifb.c | 3 + drivers/video/fbdev/omap/hwa742.c | 42 +- drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 2 - drivers/video/fbdev/simplefb.c | 5 +- include/drm/drm_atomic.h | 4 + include/drm/drm_file.h | 3 + include/drm/drm_gem_atomic_helper.h | 113 +++ include/drm/drm_gem_framebuffer_helper.h | 7 - include/drm/drm_gem_vram_helper.h | 6 +- include/drm/drm_modeset_helper_vtables.h | 31 +- include/drm/drm_plane.h | 25 +- include/drm/drm_simple_kms_helper.h | 29 +- include/drm/drm_vblank.h | 1 - include/drm/gpu_scheduler.h | 23 +- include/drm/ttm/ttm_bo_api.h | 48 +- include/drm/ttm/ttm_bo_driver.h | 329 +------ include/drm/ttm/ttm_device.h | 318 ++++++ include/drm/ttm/ttm_resource.h | 4 +- include/drm/ttm/ttm_tt.h | 15 +- include/linux/dma-fence.h | 3 + include/linux/dma-heap.h | 21 +- include/linux/hdmi.h | 2 +- include/linux/lockdep.h | 5 + include/linux/platform_data/simplefb.h | 1 + include/uapi/drm/drm_mode.h | 2 +- lib/test_printf.c | 18 + lib/vsprintf.c | 39 + scripts/checkpatch.pl | 6 +- 317 files changed, 5891 insertions(+), 10812 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/fsl,lcdif.yaml delete mode 100644 Documentation/devicetree/bindings/display/mxsfb.txt delete mode 100644 drivers/gpu/drm/arc/Kconfig delete mode 100644 drivers/gpu/drm/arc/Makefile delete mode 100644 drivers/gpu/drm/arc/arcpgu.h delete mode 100644 drivers/gpu/drm/arc/arcpgu_crtc.c delete mode 100644 drivers/gpu/drm/arc/arcpgu_drv.c delete mode 100644 drivers/gpu/drm/arc/arcpgu_hdmi.c delete mode 100644 drivers/gpu/drm/arc/arcpgu_regs.h delete mode 100644 drivers/gpu/drm/arc/arcpgu_sim.c delete mode 100644 drivers/gpu/drm/ast/ast_cursor.c create mode 100644 drivers/gpu/drm/drm_gem_atomic_helper.c delete mode 100644 drivers/gpu/drm/gma500/accel_2d.c delete mode 100644 drivers/gpu/drm/gma500/blitter.c delete mode 100644 drivers/gpu/drm/gma500/blitter.h delete mode 100644 drivers/gpu/drm/gma500/mdfld_device.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_dpi.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_dpi.h delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_output.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_output.h delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.h delete mode 100644 drivers/gpu/drm/gma500/mdfld_intel_display.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_output.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_output.h delete mode 100644 drivers/gpu/drm/gma500/mdfld_tmd_vid.c delete mode 100644 drivers/gpu/drm/gma500/mdfld_tpo_vid.c delete mode 100644 drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c delete mode 100644 drivers/gpu/drm/gma500/tc35876x-dsi-lvds.h create mode 100644 drivers/gpu/drm/tiny/arcpgu.c create mode 100644 drivers/gpu/drm/ttm/ttm_device.c rename drivers/gpu/drm/{ttm => vmwgfx}/ttm_memory.c (97%) rename {include/drm/ttm => drivers/gpu/drm/vmwgfx}/ttm_memory.h (97%) create mode 100644 include/drm/drm_gem_atomic_helper.h create mode 100644 include/drm/ttm/ttm_device.h

1 0

[PATCH 1/1] drm/scheduler: fix typos
by Nirmoy Das 03 Mar '21

03 Mar '21

Fix two typos in struct drm_sched_entity doc Signed-off-by: Nirmoy Das <nirmoy.das(a)amd.com> --- include/drm/gpu_scheduler.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 1c815e0a14ed..3782a49568b0 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -74,8 +74,8 @@ enum drm_sched_priority { * @fini_status: contains the exit status in case the process was signalled. * @last_scheduled: points to the finished fence of the last scheduled job. * @last_user: last group leader pushing a job into the entity. - * @stopped: Marks the enity as removed from rq and destined for termination. - * @entity_idle: Signals when enityt is not in use + * @stopped: Marks the entity as removed from rq and destined for termination. + * @entity_idle: Signals when entity is not in use * * Entities will emit jobs in order to their corresponding hardware * ring, and the scheduler will alternate between entities based on -- 2.30.1

1 0

[PATCH] drm: fix drm_mode_create_blob comment
by Lionel Landwerlin 03 Mar '21

03 Mar '21

Just a silly mistake Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin(a)intel.com> Suggested-by: Ben Widawsky <ben(a)bwidawsk.net> --- include/uapi/drm/drm_mode.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index b49fbf2bdc408..93b494f704b91 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -993,7 +993,7 @@ struct drm_format_modifier { }; /** - * struct drm_mode_create_blob - Create New block property + * struct drm_mode_create_blob - Create New blob property * * Create a new 'blob' data property, copying length bytes from data pointer, * and returning new blob ID. -- 2.30.1

2 4

[PATCH 00/31] Introduce devm_pm_opp_* API
by Yangtao Li 03 Mar '21

03 Mar '21

Hi, This patchset add devm_pm_opp_set_clkname, devm_pm_opp_put_clkname, devm_pm_opp_set_regulators, devm_pm_opp_put_regulators, devm_pm_opp_set_supported_hw, devm_pm_opp_of_add_table and devm_pm_opp_register_notifier. Yangtao Li (31): opp: Add devres wrapper for dev_pm_opp_set_clkname and dev_pm_opp_put_clkname opp: Add devres wrapper for dev_pm_opp_set_regulators and dev_pm_opp_put_regulators opp: Add devres wrapper for dev_pm_opp_set_supported_hw opp: Add devres wrapper for dev_pm_opp_of_add_table opp: Add devres wrapper for dev_pm_opp_register_notifier serial: qcom_geni_serial: fix potential mem leak in qcom_geni_serial_probe() serial: qcom_geni_serial: convert to use devm_pm_opp_* API spi: spi-qcom-qspi: fix potential mem leak in spi_geni_probe() spi: spi-qcom-qspi: fix potential mem leak in spi_geni_probe() qcom-geni-se: remove opp_table mmc: sdhci-msm: fix potential mem leak in sdhci_msm_probe() mmc: sdhci-msm: convert to use devm_pm_opp_* API spi: spi-qcom-qspi: fix potential mem leak in qcom_qspi_probe() spi: spi-qcom-qspi: convert to use devm_pm_opp_* API drm/msm: fix potential mem leak drm/msm: convert to use devm_pm_opp_* API and remove dp_ctrl_put drm/lima: convert to use devm_pm_opp_* API drm/lima: remove unneeded devm_devfreq_remove_device() drm/panfrost: convert to use devm_pm_opp_* API media: venus: fix error check in core_get_v4() media: venus: convert to use devm_pm_opp_* API memory: samsung: exynos5422-dmc: fix return error in exynos5_init_freq_table memory: samsung: exynos5422-dmc: convert to use devm_pm_opp_* API memory: tegra20: convert to use devm_pm_opp_* API memory: tegra30: convert to use devm_pm_opp_* API PM / devfreq: tegra30: convert to use devm_pm_opp_* API PM / devfreq: rk3399_dmc: convert to use devm_pm_opp_* API PM / devfreq: imx8m-ddrc: convert to use devm_pm_opp_* API PM / devfreq: imx-bus: convert to use devm_pm_opp_* API PM / devfreq: exynos: convert to use devm_pm_opp_* API PM / devfreq: convert to devm_pm_opp_register_notifier and remove unused API drivers/devfreq/devfreq.c | 66 +------ drivers/devfreq/exynos-bus.c | 42 +---- drivers/devfreq/imx-bus.c | 14 +- drivers/devfreq/imx8m-ddrc.c | 15 +- drivers/devfreq/rk3399_dmc.c | 22 +-- drivers/devfreq/tegra30-devfreq.c | 21 +-- drivers/gpu/drm/lima/lima_devfreq.c | 45 +---- drivers/gpu/drm/lima/lima_devfreq.h | 2 - drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 31 ++-- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 2 - drivers/gpu/drm/msm/dp/dp_ctrl.c | 29 +-- drivers/gpu/drm/msm/dp/dp_ctrl.h | 1 - drivers/gpu/drm/msm/dp/dp_display.c | 5 +- drivers/gpu/drm/msm/dsi/dsi_host.c | 23 ++- drivers/gpu/drm/panfrost/panfrost_devfreq.c | 34 +--- drivers/gpu/drm/panfrost/panfrost_devfreq.h | 1 - .../media/platform/qcom/venus/pm_helpers.c | 22 +-- drivers/memory/samsung/exynos5422-dmc.c | 13 +- drivers/memory/tegra/tegra20-emc.c | 29 +-- drivers/memory/tegra/tegra30-emc.c | 29 +-- drivers/mmc/host/sdhci-msm.c | 27 ++- drivers/opp/core.c | 173 ++++++++++++++++++ drivers/opp/of.c | 36 ++++ drivers/spi/spi-geni-qcom.c | 23 ++- drivers/spi/spi-qcom-qspi.c | 25 ++- drivers/tty/serial/qcom_geni_serial.c | 31 ++-- include/linux/devfreq.h | 23 --- include/linux/pm_opp.h | 38 ++++ include/linux/qcom-geni-se.h | 2 - 32 files changed, 402 insertions(+), 428 deletions(-) -- 2.25.1

7 51

[PATCH] drm/ttm: Fix TTM page pool accounting
by Anthony DeRossi 03 Mar '21

03 Mar '21

Freed pages are not subtracted from the allocated_pages counter in ttm_pool_type_fini(), causing a leak in the count on device removal. The next shrinker invocation loops forever trying to free pages that are no longer in the pool: rcu: INFO: rcu_sched self-detected stall on CPU rcu: 3-....: (9998 ticks this GP) idle=54e/1/0x4000000000000000 softirq=434857/434857 fqs=2237 (t=10001 jiffies g=2194533 q=49211) NMI backtrace for cpu 3 CPU: 3 PID: 1034 Comm: kswapd0 Tainted: P O 5.11.0-com #1 Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 1405 11/19/2019 Call Trace: <IRQ> ... </IRQ> sysvec_apic_timer_interrupt+0x77/0x80 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:mutex_unlock+0x16/0x20 Code: e7 48 8b 70 10 e8 7a 53 77 ff eb aa e8 43 6c ff ff 0f 1f 00 65 48 8b 14 25 00 6d 01 00 31 c9 48 89 d0 f0 48 0f b1 0f 48 39 c2 <74> 05 e9 e3 fe ff ff c3 66 90 48 8b 47 20 48 85 c0 74 0f 8b 50 10 RSP: 0018:ffffbdb840797be8 EFLAGS: 00000246 RAX: ffff9ff445a41c00 RBX: ffffffffc02a9ef8 RCX: 0000000000000000 RDX: ffff9ff445a41c00 RSI: ffffbdb840797c78 RDI: ffffffffc02a9ac0 RBP: 0000000000000080 R08: 0000000000000000 R09: ffffbdb840797c80 R10: 0000000000000000 R11: fffffffffffffff5 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000084 R15: ffffffffc02a9a60 ttm_pool_shrink+0x7d/0x90 [ttm] ttm_pool_shrinker_scan+0x5/0x20 [ttm] do_shrink_slab+0x13a/0x1a0 shrink_slab+0xcb/0x2f0 shrink_node+0x2c8/0x6c0 balance_pgdat+0x2f7/0x580 kswapd+0x17c/0x300 ? wait_woken+0x70/0x70 ? balance_pgdat+0x580/0x580 kthread+0xff/0x140 ? kthread_park+0x80/0x80 ret_from_fork+0x22/0x30 debugfs shows the incorrect total: $ cat /sys/kernel/debug/dri/0/ttm_page_pool --- 0--- --- 1--- --- 2--- --- 3--- --- 4--- --- 5--- --- 6--- --- 7--- --- 8--- --- 9--- ---10--- wc : 0 0 0 0 0 0 0 0 0 0 0 uc : 0 0 0 0 0 0 0 0 0 0 0 wc 32 : 0 0 0 0 0 0 0 0 0 0 0 uc 32 : 0 0 0 0 0 0 0 0 0 0 0 DMA uc : 0 0 0 0 0 0 0 0 0 0 0 DMA wc : 0 0 0 0 0 0 0 0 0 0 0 DMA : 0 0 0 0 0 0 0 0 0 0 0 total : 3029 of 8244261 Using ttm_pool_type_take() to remove pages from the pool before freeing them correctly accounts for the freed pages. Fixes: d099fc8f540a ("drm/ttm: new TT backend allocation pool v3") Signed-off-by: Anthony DeRossi <ajderossi(a)gmail.com> --- drivers/gpu/drm/ttm/ttm_pool.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c index 74bf1c84b637..f6df79034805 100644 --- a/drivers/gpu/drm/ttm/ttm_pool.c +++ b/drivers/gpu/drm/ttm/ttm_pool.c @@ -258,13 +258,13 @@ static void ttm_pool_type_init(struct ttm_pool_type *pt, struct ttm_pool *pool, /* Remove a pool_type from the global shrinker list and free all pages */ static void ttm_pool_type_fini(struct ttm_pool_type *pt) { - struct page *p, *tmp; + struct page *p; mutex_lock(&shrinker_lock); list_del(&pt->shrinker_list); mutex_unlock(&shrinker_lock); - list_for_each_entry_safe(p, tmp, &pt->pages, lru) + while ((p = ttm_pool_type_take(pt))) ttm_pool_free_page(pt->pool, pt->caching, pt->order, p); } -- 2.26.2

2 1

[PATCH v8 0/6] drm/imx: Introduce i.MX8qm/qxp DPU DRM
by Liu Ying 03 Mar '21

03 Mar '21

Hi, This is the v8 series to introduce i.MX8qm/qxp Display Processing Unit(DPU) DRM support. DPU is comprised of a blit engine for 2D graphics, a display controller and a command sequencer. Outside of DPU, optional prefetch engines can fetch data from memory prior to some DPU fetchunits of blit engine and display controller. The pre-fetchers support linear formats and Vivante GPU tile formats. Reference manual can be found at: https://www.nxp.com/webapp/Download?colCode=IMX8DQXPRM This patch set adds kernel modesetting support for the display controller part. It supports two CRTCs per display controller, several planes, prefetch engines and some properties of CRTC and plane. Currently, the registers of the controller is accessed without command sequencer involved, instead just by using CPU. DRM connectors would be created from the DPU KMS driver. If people want to try this series with i.MX8qxp, clock patches have already landed in 5.12-rc1, and power domain patches have already landed in 5.11-rc1. Version2 dropped the device tree patches because we'll use new dt binding way to support i.MX8qm/qxp clocks. It depends on the below series to do basic conversions for the platforms which has not landed yet: https://www.spinics.net/lists/linux-mmc/msg61965.html I've sent the below series to add downstream bridges(embedded in i.MX8qm/qxp) to support LVDS displays: https://www.spinics.net/lists/arm-kernel/msg876784.html Patch 1 ~ 3 add dt-bindings for DPU and prefetch engines. Patch 4 is a minor improvement of a macro to suppress warning as the KMS driver uses it. Patch 5 introduces the DPU DRM support. Patch 6 updates MAINTAINERS. Welcome comments, thanks. v7->v8: * Rebase this series up onto the latest drm-misc-next branch, due to DRM plane helper functions API change(atomic_check and atomic_update) from DRM atomic core. So, dpu_plane_atomic_check() and dpu_plane_atomic_update() are updated accordingly in patch 5/6. Also, rename plane->state variables and relevant DPU plane state variables in those two functions to reflect they are new states, like the patch 'drm: Rename plane->state variables in atomic update and disable' recently landed in drm-misc-next. * Replace drm_gem_fb_prepare_fb() with drm_gem_plane_helper_prepare_fb() in patch 5/6, due to DRM core API change. * Improve DPR burst length for GPU standard tile and 32bpp GPU super tile in patch 5/6 to align with the latest version of internal HW documention. v6->v7: * Fix return value of dpu_get_irqs() if platform_get_irq() fails. (Laurentiu) * Use the function array dpu_irq_handler[] to store individual DPU irq handlers. (Laurentiu) * Call get/put() hooks directly to get/put DPU fetchunits for DPU plane groups. (Laurentiu) * Shorten the names of individual DPU irq handlers by using DPU unit abbrev names to make writing dpu_irq_handler[] easier. * Add Rob's R-b tag back on DPU dt-binding patch as change in v6 was reviewed. v5->v6: * Use graph schema in the DPU dt-binding. * Do not use macros where possible in the DPU DRM driver. (Laurentiu) * Break dpu_plane_atomic_check() into some smaller functions. (Laurentiu) * Address some minor comments from Laurentiu on the DPU DRM driver. * Add dpu_crtc_err() helper marco in the DPU DRM driver to tell dmesg which CRTC generates error. * Drop calling dev_set_drvdata() from dpu_drm_bind/unbind() in the DPU DRM driver as it is done in dpu_drm_probe(). * Some trivial tweaks. v4->v5: * Rebase up onto the latest drm-misc-next branch and remove the hook to drm_atomic_helper_legacy_gamma_set() from patch 5/6, because it was dropped by the newly landed commit 'drm: automatic legacy gamma support'. * Remove a redundant blank line from dpu_plane_atomic_update() in patch 5/6. v3->v4: * Improve compatible properties in DPU and prefetch engines' dt bindings by using enum instead of oneOf+const. * Add Rob's R-b tags on dt binding patches(patch 1/6, 2/6 and 3/6). * Add Daniel's A-b tag on patch 4/6. v2->v3: * Fix DPU DRM driver build warnings which are Reported-by: kernel test robot <lkp(a)intel.com>. * Drop DPU DRM driver build dependency on IMX_SCU, as dummy SCU functions have been added in header files by the patch 'firmware: imx: add dummy functions' which has landed in linux-next/master branch. * Add a missing blank line in include/drm/drm_atomic.h. v1->v2: * Test this patch set also with i.MX8qm LVDS displays. * Drop the device tree patches because we'll use new dt binding way to support i.MX8qm/qxp clocks. This depends on a not-yet-landed patch set to do basic conversions for the platforms. * Fix dt binding yamllint warnings. * Require bypass0 and bypass1 clocks for both i.MX8qxp and i.MX8qm in DPU's dt binding documentation. * Use new dt binding way to add clocks in the dt binding examples. * Address several comments from Laurentiu on the DPU DRM patch. Liu Ying (6): dt-bindings: display: imx: Add i.MX8qxp/qm DPU binding dt-bindings: display: imx: Add i.MX8qxp/qm PRG binding dt-bindings: display: imx: Add i.MX8qxp/qm DPR channel binding drm/atomic: Avoid unused-but-set-variable warning on for_each_old_plane_in_state drm/imx: Introduce i.MX8qm/qxp DPU DRM MAINTAINERS: add maintainer for i.MX8qxp DPU DRM driver .../bindings/display/imx/fsl,imx8qxp-dprc.yaml | 87 ++ .../bindings/display/imx/fsl,imx8qxp-dpu.yaml | 387 +++++++ .../bindings/display/imx/fsl,imx8qxp-prg.yaml | 60 ++ MAINTAINERS | 9 + drivers/gpu/drm/imx/Kconfig | 1 + drivers/gpu/drm/imx/Makefile | 1 + drivers/gpu/drm/imx/dpu/Kconfig | 10 + drivers/gpu/drm/imx/dpu/Makefile | 10 + drivers/gpu/drm/imx/dpu/dpu-constframe.c | 171 ++++ drivers/gpu/drm/imx/dpu/dpu-core.c | 1054 ++++++++++++++++++++ drivers/gpu/drm/imx/dpu/dpu-crtc.c | 967 ++++++++++++++++++ drivers/gpu/drm/imx/dpu/dpu-crtc.h | 66 ++ drivers/gpu/drm/imx/dpu/dpu-disengcfg.c | 117 +++ drivers/gpu/drm/imx/dpu/dpu-dprc.c | 722 ++++++++++++++ drivers/gpu/drm/imx/dpu/dpu-dprc.h | 40 + drivers/gpu/drm/imx/dpu/dpu-drv.c | 292 ++++++ drivers/gpu/drm/imx/dpu/dpu-drv.h | 28 + drivers/gpu/drm/imx/dpu/dpu-extdst.c | 299 ++++++ drivers/gpu/drm/imx/dpu/dpu-fetchdecode.c | 294 ++++++ drivers/gpu/drm/imx/dpu/dpu-fetcheco.c | 224 +++++ drivers/gpu/drm/imx/dpu/dpu-fetchlayer.c | 154 +++ drivers/gpu/drm/imx/dpu/dpu-fetchunit.c | 609 +++++++++++ drivers/gpu/drm/imx/dpu/dpu-fetchunit.h | 191 ++++ drivers/gpu/drm/imx/dpu/dpu-fetchwarp.c | 250 +++++ drivers/gpu/drm/imx/dpu/dpu-framegen.c | 395 ++++++++ drivers/gpu/drm/imx/dpu/dpu-gammacor.c | 223 +++++ drivers/gpu/drm/imx/dpu/dpu-hscaler.c | 275 +++++ drivers/gpu/drm/imx/dpu/dpu-kms.c | 540 ++++++++++ drivers/gpu/drm/imx/dpu/dpu-kms.h | 23 + drivers/gpu/drm/imx/dpu/dpu-layerblend.c | 348 +++++++ drivers/gpu/drm/imx/dpu/dpu-plane.c | 802 +++++++++++++++ drivers/gpu/drm/imx/dpu/dpu-plane.h | 56 ++ drivers/gpu/drm/imx/dpu/dpu-prg.c | 433 ++++++++ drivers/gpu/drm/imx/dpu/dpu-prg.h | 45 + drivers/gpu/drm/imx/dpu/dpu-prv.h | 233 +++++ drivers/gpu/drm/imx/dpu/dpu-tcon.c | 250 +++++ drivers/gpu/drm/imx/dpu/dpu-vscaler.c | 308 ++++++ drivers/gpu/drm/imx/dpu/dpu.h | 385 +++++++ include/drm/drm_atomic.h | 5 +- 39 files changed, 10363 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dprc.yaml create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-prg.yaml create mode 100644 drivers/gpu/drm/imx/dpu/Kconfig create mode 100644 drivers/gpu/drm/imx/dpu/Makefile create mode 100644 drivers/gpu/drm/imx/dpu/dpu-constframe.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-core.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-crtc.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-crtc.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-disengcfg.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-dprc.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-dprc.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-drv.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-drv.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-extdst.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchdecode.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetcheco.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchlayer.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchunit.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchunit.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchwarp.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-framegen.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-gammacor.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-hscaler.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-kms.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-kms.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-layerblend.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-plane.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-plane.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prg.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prg.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prv.h create mode 100644 drivers/gpu/drm/imx/dpu/dpu-tcon.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu-vscaler.c create mode 100644 drivers/gpu/drm/imx/dpu/dpu.h -- 2.7.4

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dri-devel March 2021