linux-dev/drivers/gpu/drm/stm, branch master

drm/gem: rename GEM CMA helpers to GEM DMA helpers

2022-08-03T16:31:49Z

Rename "GEM CMA" helpers to "GEM DMA" helpers - considering the hierarchy of APIs (mm/cma -> dma -> gem dma) calling them "GEM DMA" seems to be more applicable. Besides that, commit e57924d4ae80 ("drm/doc: Task to rename CMA helpers") requests to rename the CMA helpers and implies that people seem to be confused about the naming. In order to do this renaming the following script was used: ``` #!/bin/bash DIRS="drivers/gpu include/drm Documentation/gpu" REGEX_SYM_UPPER="[0-9A-Z_\-]" REGEX_SYM_LOWER="[0-9a-z_\-]" REGEX_GREP_UPPER="(${REGEX_SYM_UPPER}*)(GEM)_CMA_(${REGEX_SYM_UPPER}*)" REGEX_GREP_LOWER="(${REGEX_SYM_LOWER}*)(gem)_cma_(${REGEX_SYM_LOWER}*)" REGEX_SED_UPPER="s/${REGEX_GREP_UPPER}/\1\2_DMA_\3/g" REGEX_SED_LOWER="s/${REGEX_GREP_LOWER}/\1\2_dma_\3/g" # Find all upper case 'CMA' symbols and replace them with 'DMA'. for ff in $(grep -REHl "${REGEX_GREP_UPPER}" $DIRS) do sed -i -E "$REGEX_SED_UPPER" $ff done # Find all lower case 'cma' symbols and replace them with 'dma'. for ff in $(grep -REHl "${REGEX_GREP_LOWER}" $DIRS) do sed -i -E "$REGEX_SED_LOWER" $ff done # Replace all occurrences of 'CMA' / 'cma' in comments and # documentation files with 'DMA' / 'dma'. for ff in $(grep -RiHl " cma " $DIRS) do sed -i -E "s/ cma / dma /g" $ff sed -i -E "s/ CMA / DMA /g" $ff done # Rename all 'cma_obj's to 'dma_obj'. for ff in $(grep -RiHl "cma_obj" $DIRS) do sed -i -E "s/cma_obj/dma_obj/g" $ff done ``` Only a few more manual modifications were needed, e.g. reverting the following modifications in some DRM Kconfig files - select CMA if HAVE_DMA_CONTIGUOUS + select DMA if HAVE_DMA_CONTIGUOUS as well as manually picking the occurrences of 'CMA'/'cma' in comments and documentation which relate to "GEM CMA", but not "FB CMA". Also drivers/gpu/drm/Makefile was fixed up manually after renaming drm_gem_cma_helper.c to drm_gem_dma_helper.c. This patch is compile-time tested building a x86_64 kernel with `make allyesconfig && make drivers/gpu/drm`. Acked-by: Sam Ravnborg Acked-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Signed-off-by: Danilo Krummrich Reviewed-by: Liviu Dudau #drivers/gpu/drm/arm Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-4-dakr@redhat.com

drm/fb: rename FB CMA helpers to FB DMA helpers

2022-08-03T16:30:55Z

Rename "FB CMA" helpers to "FB DMA" helpers - considering the hierarchy of APIs (mm/cma -> dma -> fb dma) calling them "FB DMA" seems to be more applicable. Besides that, commit e57924d4ae80 ("drm/doc: Task to rename CMA helpers") requests to rename the CMA helpers and implies that people seem to be confused about the naming. In order to do this renaming the following script was used: ``` #!/bin/bash DIRS="drivers/gpu include/drm Documentation/gpu" REGEX_SYM_UPPER="[0-9A-Z_\-]" REGEX_SYM_LOWER="[0-9a-z_\-]" REGEX_GREP_UPPER="(${REGEX_SYM_UPPER}*)(FB)_CMA_(${REGEX_SYM_UPPER}*)" REGEX_GREP_LOWER="(${REGEX_SYM_LOWER}*)(fb)_cma_(${REGEX_SYM_LOWER}*)" REGEX_SED_UPPER="s/${REGEX_GREP_UPPER}/\1\2_DMA_\3/g" REGEX_SED_LOWER="s/${REGEX_GREP_LOWER}/\1\2_dma_\3/g" # Find all upper case 'CMA' symbols and replace them with 'DMA'. for ff in $(grep -REHl "${REGEX_GREP_UPPER}" $DIRS) do sed -i -E "$REGEX_SED_UPPER" $ff done # Find all lower case 'cma' symbols and replace them with 'dma'. for ff in $(grep -REHl "${REGEX_GREP_LOWER}" $DIRS) do sed -i -E "$REGEX_SED_LOWER" $ff done # Replace all occurrences of 'CMA' / 'cma' in comments and # documentation files with 'DMA' / 'dma'. for ff in $(grep -RiHl " cma " $DIRS) do sed -i -E "s/ cma / dma /g" $ff sed -i -E "s/ CMA / DMA /g" $ff done ``` Only a few more manual modifications were needed, e.g. reverting the following modifications in some DRM Kconfig files - select CMA if HAVE_DMA_CONTIGUOUS + select DMA if HAVE_DMA_CONTIGUOUS as well as manually picking the occurrences of 'CMA'/'cma' in comments and documentation which relate to "FB CMA", but not "GEM CMA". This patch is compile-time tested building a x86_64 kernel with `make allyesconfig && make drivers/gpu/drm`. Acked-by: Sam Ravnborg Acked-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Signed-off-by: Danilo Krummrich Reviewed-by: Liviu Dudau #drivers/gpu/drm/arm Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-3-dakr@redhat.com

drm/fb: remove unused includes of drm_fb_cma_helper.h

2022-08-03T16:30:20Z

Quite a lot of drivers include the drm_fb_cma_helper.h header file without actually making use of it's provided API, hence remove those includes. Suggested-by: Sam Ravnborg Signed-off-by: Danilo Krummrich Reviewed-by: Laurent Pinchart Acked-by: Sam Ravnborg Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-2-dakr@redhat.com

drm: Remove unnecessary include statements of drm_plane_helper.h

2022-07-26T16:42:04Z

Remove the include statement for drm_plane_helper.h from all the files that don't need it. Althogh the header file is almost empty, many drivers include it somewhere. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220720083058.15371-5-tzimmermann@suse.de

drm: Remove linux/media-bus-format.h from drm_crtc.h

2022-07-05T18:15:13Z

drm_crtc.h has no need for linux/media-bus-format.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/media-bus-format.h. Quite a few placs do currently depend on linux/media-bus-format.h without actually including it directly. All of those need to be fixed up. v2: Deal with ingenic as well v3: Fix up mxsfb and remaining parts of imx Acked-by: Sam Ravnborg Acked-by: Jani Nikula Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220630195114.17407-4-ville.syrjala@linux.intel.com

drm/stm: ltdc: update hardware error management

2022-06-27T14:01:50Z

The latest hardware version (0x40100) supports a hardware threshold register (aka FUTR) to trigger a fifo underrun interrupt. A software threshold has been implemented for other hardware versions. The threshold is set to 128 by default. Signed-off-by: Yannick Fertre Signed-off-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20220603134654.594373-1-yannick.fertre@foss.st.com

drm/stm: ltdc: add support of horizontal & vertical mirroring

2022-06-27T14:01:40Z

Support of vertical & horizontal mirroring features thanks to the plane rotation property. Signed-off-by: Yannick Fertre Signed-off-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20220603134547.593790-1-yannick.fertre@foss.st.com

drm/stm: ltdc: add support of the dynamic z-order

2022-06-27T14:01:17Z

Zpos property is immutable for all hardware versions except the last version (0x40100) which support the blending order feature (dynamic z-order). Signed-off-by: Yannick Fertre Signed-off-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20220603134459.593379-1-yannick.fertre@foss.st.com

drm/stm: ltdc: fix various coding-style warnings

2022-06-27T13:53:49Z

Fix issues reported by checkpatch.pl: - Braces {} should be used on all arms - Blank lines Signed-off-by: Yannick Fertre Acked-by: Raphael Gallais-Pou Signed-off-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20220603134334.592805-1-yannick.fertre@foss.st.com

drm/stm: ltdc: remove error message about scaling

2022-06-27T13:53:49Z

Remove error message about scaling & replace it by a debug message to avoid too much error. Signed-off-by: Yannick Fertre Acked-by: Raphael Gallais-Pou Signed-off-by: Philippe Cornu Link: https://patchwork.freedesktop.org/patch/msgid/20220603134250.592408-1-yannick.fertre@foss.st.com