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path: root/drivers/gpu/drm/drm_format_helper.c
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2021-10-04drm/format-helper: Add drm_fb_xrgb8888_to_rgb888()Noralf Trønnes
Add XRGB8888 emulation support for devices that can only do RGB888. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210929191201.34456-4-noralf@tronnes.org
2021-10-04drm/format-helper: Add drm_fb_xrgb8888_to_rgb332()Noralf Trønnes
Add XRGB8888 emulation support for devices that can only do RGB332. v2: - Support Big Endian (Daniel) Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210929191201.34456-3-noralf@tronnes.org
2021-08-02drm: Fix typo in commentsCai Huoqing
fix typo for drm v1->v2: respin with the change "iff ==> implies that" Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210730132729.376-1-caihuoqing@baidu.com
2021-05-01drm/format-helper: Add blitter functionsThomas Zimmermann
The blitter functions copy a framebuffer to I/O memory using one of the existing conversion functions. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Maxime Ripard <maxime@cerno.tech> Tested-by: nerdopolis <bluescreen_avenger@verizon.net> Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-3-tzimmermann@suse.de
2021-05-01drm/format-helper: Pass destination pitch to drm_fb_memcpy_dstclip()Thomas Zimmermann
The memcpy's destination buffer might have a different pitch than the source. Support different pitches as function argument. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Maxime Ripard <maxime@cerno.tech> Tested-by: nerdopolis <bluescreen_avenger@verizon.net> Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-2-tzimmermann@suse.de
2020-05-26drm/format-helper: Add drm_fb_swab()Noralf Trønnes
This replaces drm_fb_swab16() with drm_fb_swab() supporting 16 and 32-bit. Also make pixel line caching optional. v2: - Bail out on cpp != 2 && 4 (Sam) Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200509141619.32970-8-noralf@tronnes.org
2020-02-17drm/format_helper: Dual licence the file in GPL 2 and MITEmmanuel Vadot
Contributors for this file are : Gerd Hoffmann <kraxel@redhat.com> Maxime Ripard <mripard@kernel.org> Noralf Trønnes <noralf@tronnes.org> Acked-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Emmanuel Vadot <manu@FreeBSD.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200215180911.18299-3-manu@FreeBSD.org
2019-05-20drm: Remove users of drm_format_info_plane_cppMaxime Ripard
drm_format_info_plane_cpp() basically just returns the cpp array content found in the drm_format_info structure. Since it's pretty trivial, let's remove the function and have the users use the array directly Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/c0a78c87cd0410a1819edad2794ad06543c85bb5.1558002671.git-series.maxime.ripard@bootlin.com
2019-05-20drm/fourcc: Pass the format_info pointer to drm_format_plane_cppMaxime Ripard
So far, the drm_format_plane_cpp function was operating on the format's fourcc and was doing a lookup to retrieve the drm_format_info structure and return the cpp. However, this is inefficient since in most cases, we will have the drm_format_info pointer already available so we shouldn't have to perform a new lookup. Some drm_fourcc functions also already operate on the drm_format_info pointer for that reason, so the API is quite inconsistent there. Let's follow the latter pattern and remove the extra lookup while being a bit more consistent. In order to be extra consistent, also rename that function to drm_format_info_plane_cpp and to a static function in the header to match the current policy. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/32aa13e53dbc98a90207fd290aa8e79f785fb11e.1558002671.git-series.maxime.ripard@bootlin.com
2019-04-17drm: add drm_format_helper.c to kerneldocGerd Hoffmann
Also drop the dstclip parameter sphinx has warned about (leftover from an earlier patch version). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20190416090533.28374-1-kraxel@redhat.com
2019-04-11drm: fix drm_fb_xrgb8888_to_rgb888_dstclip()Gerd Hoffmann
Oops, the __iomem annotation was added to the header file only. Add it to the implementation (and documentation) too. Fixes: 5c5373b51bec ("drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept __iomem dst") Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190411044932.13247-1-kraxel@redhat.com
2019-04-10drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept __iomem dstGerd Hoffmann
Not all archs have the __io_virt() macro, so cirrus can't simply convert pointers that way. The drm format helpers have to use memcpy_toio() instead. This patch makes drm_fb_xrgb8888_to_rgb888_dstclip() accept a __iomem dst pointer and use memcpy_toio() instead of memcpy(). The helper function (drm_fb_xrgb8888_to_rgb888_line) has been changed to process a single scanline. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190410063815.17062-4-kraxel@redhat.com
2019-04-10drm: switch drm_fb_xrgb8888_to_rgb565_dstclip to accept __iomem dstGerd Hoffmann
Not all archs have the __io_virt() macro, so cirrus can't simply convert pointers that way. The drm format helpers have to use memcpy_toio() instead. This patch makes drm_fb_xrgb8888_to_rgb565_dstclip() accept a __iomem dst pointer and use memcpy_toio() instead of memcpy(). The helper function (drm_fb_xrgb8888_to_rgb565_line) has been changed to process a single scanline. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190410063815.17062-3-kraxel@redhat.com
2019-04-10drm: switch drm_fb_memcpy_dstclip to accept __iomem dstGerd Hoffmann
Not all archs have the __io_virt() macro, so cirrus can't simply convert pointers that way. The drm format helpers have to use memcpy_toio() instead. This patch makes drm_fb_memcpy_dstclip() accept a __iomem dst pointer and use memcpy_toio() instead of memcpy(). With that separating out the memcpy loop into the drm_fb_memcpy_lines() helper isn't useful any more, so move the code back into the calling functins. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190410063815.17062-2-kraxel@redhat.com
2019-04-08drm: add drm_fb_xrgb8888_to_rgb888_dstclip()Gerd Hoffmann
Simliar to drm_fb_xrgb8888_to_rgb565_dstclip() but converts to rgb888 instead of rgb565. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190405095219.9231-5-kraxel@redhat.com
2019-04-08drm: add drm_fb_xrgb8888_to_rgb565_dstclip()Gerd Hoffmann
It is a drm_fb_xrgb8888_to_rgb565() variant which checks the clip rectangle for the destination too. Common code between drm_fb_xrgb8888_to_rgb565() and drm_fb_xrgb8888_to_rgb565_dstclip() was factored out into the drm_fb_xrgb8888_to_rgb565_lines() helper function. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190405095219.9231-4-kraxel@redhat.com
2019-04-08drm: add drm_fb_memcpy_dstclip() helperGerd Hoffmann
It is a drm_fb_memcpy() variant which checks the clip rectangle for the destination too. Common code between drm_fb_memcpy() and drm_fb_memcpy_dstclip() was factored out into the drm_fb_memcpy_lines() helper function. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190405095219.9231-3-kraxel@redhat.com
2019-04-08drm: move tinydrm format conversion helpers to new drm_format_helper.cGerd Hoffmann
Also rename them from tinydrm_* to drm_fb_* Pure code motion, no functional change. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/20190405095219.9231-2-kraxel@redhat.com