- 02 May, 2024 40 commits
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Thomas Zimmermann authored
Rewrite some docs that are not up-to-date any longer. Remove the TODO item for fbdev-generic conversion, as the helper has been replaced. Make documentation for DMA, SHMEM and TTM emulation available. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Cc: Jonathan Corbet <corbet@lwn.net> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-44-tzimmermann@suse.de
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Thomas Zimmermann authored
Only TTM-based drivers use fbdev-generic. Rename it to fbdev-ttm and change the symbol infix from _generic_ to _ttm_. Link the source file into TTM helpers, so that it is only build if TTM-based drivers have been selected. Select DRM_TTM_HELPER for loongson. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by st7735r. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-42-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by st7586. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by repaper. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-40-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by panel-mipi-dbi. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by mi0283qt. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ili9486. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ili9341. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ili9225. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ili9163. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by hx8357d. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by rockchip. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-32-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by shmobile. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-31-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by rz-du. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by rcar-du. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-29-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by panel-ilitek-9341. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ingenic. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by ingenic. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-26-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by lcdc. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by kirin. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports damage handling, which is required by komeda. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-23-tzimmermann@suse.de
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Thomas Zimmermann authored
Add support for damage handling and deferred I/O to fbdev-dma. This enables fbdev-dma to support all DMA-memory-based DRM drivers, even such with a dirty callback in their framebuffers. The patch adds the code for deferred I/O and also sets a dedicated helper for struct fb_ops.fb_mmap that support coherent mappings. v3: - init fb_ops with FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS() (Javier) Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Maíra Canal <mcanal@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-21-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Reviewed-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-16-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-13-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
Deepak Rawat <drawat.floss@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-12-tzimmermann@suse.de
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Implement fbdev emulation with fbdev-shmem. Avoids the overhead of fbdev-generic's additional shadow buffering. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Add an fbdev emulation for SHMEM-based memory managers. The code is similar to fbdev-generic, but does not require an additional shadow buffer for mmap(). Fbdev-shmem operates directly on the buffer object's SHMEM pages. Fbdev's deferred-I/O mechanism updates the hardware state on write operations. The memory pages of GEM SHMEM cannot be detected by fbdefio. Therefore fbdev-shmem implements the .get_page() hook in struct fb_deferred_io. The fbdefio helpers call this hook to retrieve the page directly from fbdev-shmem instead of trying to detect it internally. v3: - clarify on get_page mechanism in commit description (Javier) v2: - use drm_driver_legacy_fb_format() (Geert) Signed-off-by:
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Thomas Zimmermann authored
Add a callback for drivers to provide framebuffer pages to fbdev's deferred-I/O helpers. Implementations need to acquire a reference on the page before returning it. Returning NULL generates a SIGBUS signal. This will be useful for DRM's fbdev emulation with GEM-shmem buffer objects. v2: - fix typo in commit message (Javier) Signed-off-by:
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Thomas Zimmermann authored
Unconditionally call get_page() after looking up a page from the framebuffer memory. Guarantees that we always hold a reference. This change also refactors the code such that it can support a driver-supplied get_page helper. This will be useful for DRM's fbdev emulation. Signed-off-by:
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Thomas Zimmermann authored
Test smem_start before looking up pages from its value. Return NULL if it is unset. This will result in a SIGBUS signal. Signed-off-by:
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Thomas Zimmermann authored
Framebuffers in virtual memory are available via screen_buffer. Use it instead of screen_base and avoid the type casting. Signed-off-by:
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