- 08 Nov, 2022 7 commits
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Thomas Zimmermann authored
Move the vmap code for shadow-plane helpers from prepare_fb to begin_fb_access helpers. Vunmap is now performed at the end of the current pageflip, instead of the end of the following pageflip. Reduces the duration of the mapping from while the framebuffer is being displayed to just the atomic commit. This is safe as outside of the pageflip, nothing should access the mapped buffer memory. Unmapping the framebuffer BO memory early allows to reduce address- space consumption and possibly allows for evicting the memory pages. The change is effectively a rename of prepare_fb and cleanup_fb implementations, plus updates to the shadow-plane init macro. As there's no longer a prepare_fb helper for shadow planes, atomic helpers will call drm_gem_plane_helper_prepare_fb() automatically. v2: * fix typos in commit message (Javier) Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025101737.8874-3-tzimmermann@suse.de
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Thomas Zimmermann authored
Add {begin,end}_fb_access helpers to run at the beginning and end of an atomic commit. The begin_fb_access helper acquires resources that are necessary to perform the atomic commit. It it similar to prepare_fb, except that the resources are to be released at the end of the commit. Resources acquired by prepare_fb are held until after the next pageflip. The end_fb_access helper performs the corresponding resource cleanup. Atomic helpers call it with the new plane state. This is different from cleanup_fb, which releases resources of the old plane state. v2: * fix typos in commit message (Javier) Signed-off-by: -
Thomas Zimmermann authored
Document the new field smem_start in struct drm_fb_helper and avoid a compile-time warning. An error message is shown below and the bug report is at [1]. include/drm/drm_fb_helper.h:204: warning: Function parameter or member 'hint_leak_smem_start' not described in 'drm_fb_helper' Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Thomas Zimmermann authored
Include <linux/io.h> to get readl() and writel() on S390. The error message is shown below and a bug report is at [1]. drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c:75:15: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration] 75 | reg = readl(priv->mmio + HIBMC_DISPLAY_CONTROL_HISILE); | ^~~~~ drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c:80:9: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration] 80 | writel(reg, priv->mmio + HIBMC_DISPLAY_CONTROL_HISILE); | ^~~~~~ Reported-by:kernel test robot <lkp@intel.com> Acked-by:
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Thomas Zimmermann authored
Include <linux/vmalloc.h> in fbdev emulation to get vzalloc() and vfree() on MIPS. The error messages are shown below and bug reports are at [1] and [2]. drivers/gpu/drm/drm_fbdev_generic.c: In function 'drm_fbdev_cleanup': drivers/gpu/drm/drm_fbdev_generic.c:63:17: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration] 63 | vfree(shadow); | ^~~~~ | kvfree drivers/gpu/drm/drm_fbdev_generic.c: In function 'drm_fbdev_fb_probe': drivers/gpu/drm/drm_fbdev_generic.c:219:38: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration] 219 | fbi->screen_buffer = vzalloc(fbi->screen_size); | ^~~~~~~ | kvzalloc drivers/gpu/drm/drm_fbdev_generic.c:219:36: warning: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 219 | fbi->screen_buffer = vzalloc(fbi->screen_size); Reported-by: -
Daniel Vetter authored
This was lost in the code movement done in commit 8ab59da2 ("drm/fb-helper: Move generic fbdev emulation into separate source file"). Fixes: 8ab59da2 ("drm/fb-helper: Move generic fbdev emulation into separate source file") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by:
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Christian König authored
If we got a page pool use it as much as possible. If we can't get more pages from the pool allocate as much as possible. Only if that still doesn't work reduce the order and try again. v2: minor cleanups Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Felix Kuehling <Felix.Kuehling@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221107195808.1873-1-christian.koenig@amd.com
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- 07 Nov, 2022 8 commits
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Danilo Krummrich authored
drm_mode_config_init() simply calls drmm_mode_config_init(), hence cleanup is automatically handled through registering drm_mode_config_cleanup() with drmm_add_action_or_reset(). While at it, get rid of the deprecated drm_mode_config_init() and replace it with drmm_mode_config_init() directly. Signed-off-by:
Danilo Krummrich <dakr@redhat.com> Signed-off-by:
Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026153431.72033-5-dakr@redhat.com
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Danilo Krummrich authored
Use drm managed resource allocation (drmm_universal_plane_alloc()) in order to get rid of the explicit destroy hook in struct drm_plane_funcs. Signed-off-by:
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Danilo Krummrich authored
Using drm_device->dev_private is deprecated. Since we've switched to devm_drm_dev_alloc(), struct drm_device is now embedded in struct hdlcd_drm_private, hence we can use container_of() to get the struct drm_device instance instead. Signed-off-by:
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Danilo Krummrich authored
Use drm managed resources to allocate driver structures and get rid of the deprecated drm_dev_alloc() call and replace it with devm_drm_dev_alloc(). This also serves as preparation to get rid of drm_device->dev_private and to fix use-after-free issues on driver unload. Signed-off-by:
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Samuel Holland authored
The A100 variant of the MIPI DSI controller now gets its module clock from the TCON via the TCON TOP, so the clock rate cannot be set to a fixed value. Otherwise, it appears to be the same as the A31 variant. Reviewed-by:
Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/r/20221107053552.2330-5-samuel@sholland.orgSigned-off-by:
Maxime Ripard <maxime@cerno.tech>
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Samuel Holland authored
Replace the ad-hoc calls to of_device_is_compatible() with a structure describing the differences between variants. This is in preparation for adding more variants to the driver. Reviewed-by:
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Samuel Holland authored
The "40nm" MIPI DSI controller found in the A100 and D1 SoCs has the same register layout as previous SoC integrations. However, its module clock now comes from the TCON, which means it no longer runs at a fixed rate, so this needs to be distinguished in the driver. The controller also now uses pins on Port D instead of dedicated pins, so it drops the separate power domain. Acked-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Samuel Holland authored
The A64 case should have limited maxItems, instead of duplicating the minItems value from the main binding. While here, simplify the binding by making this an "else" case of the two-clock conditional block. Fixes: fe5040f2 ("dt-bindings: sun6i-dsi: Document A64 MIPI-DSI controller") Acked-by:
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- 05 Nov, 2022 24 commits
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Thomas Zimmermann authored
Clarify documentation in the use of struct drm_driver.last_close and struct drm_mode_config_funcs.output_poll_changed. Those callbacks should not be said for fbdev implementations on top of struct drm_client_funcs. Signed-off-by:
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Thomas Zimmermann authored
Remove include statements for <drm/drm_fb_helper.h> where it is not required (i.e., most of them). In a few places include other header files that are required by the source code. v3: * fix amdgpu include statements * fix rockchip include statements Signed-off-by:
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Thomas Zimmermann authored
Move the generic fbdev implementation into its own source and header file. Adapt drivers. No functional changes, but some of the internal helpers have been renamed to fit into the drm_fbdev_ naming scheme. v3: * rename drm_fbdev.{c,h} to drm_fbdev_generic.{c,h} * rebase onto vmwgfx changes * rebase onto xlnx changes * fix include statements in amdgpu Signed-off-by: -
Thomas Zimmermann authored
Uncouple the parameter drm_leak_fbdev_smem from the implementation by setting a flag in struct drm_fb_helper. This will help to move the generic fbdev emulation into its own source file, while keeping the parameter in drm_fb_helper.c. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the generic fbdev emulation even if it has been disabled on the kernel command line. The hotplug and mode initialization will fail accordingly. The kernel parameter can still be changed at runtime and the emulation will initialize after hotplugging the connector. Signed-off-by:
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Thomas Zimmermann authored
Pull the test for fb_dirty into the caller to avoid extra work if no callback has been set. In this case no damage handling is required and no damage area needs to be computed. Print a warning if the damage worker runs without getting an fb_dirty callback. Signed-off-by:
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Thomas Zimmermann authored
Implement the fbdev's read/write helpers with the same functions. Use the generic fbdev's code as template. Convert all drivers. DRM's fb helpers must implement regular I/O functionality in struct fb_ops and possibly perform a damage update. Handle all this in the same functions and convert drivers. The functionality has been used as part of the generic fbdev code for some time. The drivers don't set struct drm_fb_helper.fb_dirty, so they will not be affected by damage handling. For I/O memory, fb helpers now provide drm_fb_helper_cfb_read() and drm_fb_helper_cfb_write(). Several drivers require these. Until now tegra used I/O read and write, although the memory buffer appears to be in system memory. So use _sys_ helpers now. v3: * fix docs (Javier) v2: * rebase onto vmwgfx changes Signed-off-by:
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Thomas Zimmermann authored
Call struct fb_ops.fb_sync in drm_fbdev_{read,write}() to mimic the behavior of fbdev. Fbdev implementations of fb_read and fb_write in struct fb_ops invoke fb_sync to synchronize with outstanding operations before I/O. Doing the same in DRM implementations will allow us to use them throughout DRM drivers. Signed-off-by: -
Thomas Zimmermann authored
The fbdev helpers implement a damage worker that forwards fbdev updates to the DRM driver. The worker's update logic depends on the generic fbdev emulation. Separate the two via function pointer. The generic fbdev emulation sets struct drm_fb_helper_funcs.fb_dirty, a new callback that hides the update logic from the damage worker. It's not possible to use the generic logic with other fbdev emulation, because it contains additional code for the shadow buffering that the generic emulation employs. DRM drivers with internal fbdev emulation can set fb_dirty to their own implementation if they require damage handling; although no such drivers currently exist. Signed-off-by:
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Thomas Zimmermann authored
Rename drm_fb_helper_unregister_fbi() to drm_fb_helper_unregister_info() as part of unifying the naming within fbdev helpers. Adapt drivers. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Rename drm_fb_helper_alloc_fbi() to drm_fb_helper_alloc_info() as part of unifying the naming within fbdev helpers. Adapt drivers. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Rename struct drm_fb_helper.fbdev to info. The current name is misleading as it overlaps with generic fbdev naming conventions. Adapt to the usual naming in fbdev drivers by calling the field 'info'. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Only include what we have to. Signed-off-by:
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Thomas Zimmermann authored
Include <linux/of.h> for of_match_ptr(). Signed-off-by:
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Thomas Zimmermann authored
Include <linux/backlight.h> for devm_of_find_backlight(). Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as rockchip uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian) Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as logicvc uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian) Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as ingenic uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian, Sergey) Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as DCSS uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian) Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as amdgpu uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian) Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.lastclose. It's used to restore the fbdev console. But as vboxvideo uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the call to drm_client_dev_restore() in drm_lastclose(). Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.lastclose. It's used to restore the fbdev console. But as mcde uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the call to drm_client_dev_restore() in drm_lastclose(). Signed-off-by:
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Thomas Zimmermann authored
Don't set struct drm_driver.lastclose. It's used to restore the fbdev console. But as komeda uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the call to drm_client_dev_restore() in drm_lastclose(). Signed-off-by:
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Thomas Zimmermann authored
Backmerging drm/drm-next to get the latest changes in the xlnx driver. Signed-off-by:
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- 04 Nov, 2022 1 commit
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Thomas Zimmermann authored
Cast error pointers when returning them as void __iomem *. Fixes a number of Sparse warnings, such as the ones shown below. ../drivers/gpu/drm/tiny/ofdrm.c:439:31: warning: incorrect type in return expression (different address spaces) ../drivers/gpu/drm/tiny/ofdrm.c:439:31: expected void [noderef] __iomem * ../drivers/gpu/drm/tiny/ofdrm.c:439:31: got void * ../drivers/gpu/drm/tiny/ofdrm.c:442:31: warning: incorrect type in return expression (different address spaces) ../drivers/gpu/drm/tiny/ofdrm.c:442:31: expected void [noderef] __iomem * ../drivers/gpu/drm/tiny/ofdrm.c:442:31: got void * See [1] for the bug report. v3: * use IOMEM_ERR_PTR() (Javier) Reported-by:
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