Hi Am 06.07.22 um 11:06 schrieb Laurent Pinchart:
Hi Thomas, On Wed, Jul 06, 2022 at 10:34:13AM +0200, Thomas Zimmermann wrote:Am 05.07.22 um 23:26 schrieb Danilo Krummrich:This patch series renames all CMA helpers to DMA helpers - considering the hierarchy of APIs (mm/cma -> dma -> gem/fb dma helpers) calling them DMA helpers seems to be more applicable.Ok, why not. Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx> for the series. Sometimes allocation fails because there's no CMA memory left. Increasing that value on boot usually fixes the problem. Should we note somewhere in the docs that the allocator is backed by pages in CMA memory?CMA is only one of the backends that can be used here. For instance, if the device performs DMA through an IOMMU, then CMA won't be used.
Ok, thanks for clarifying. My understanding was that it's all CMA. So renaming makes even more sense.
This being said, helping users who may face a problem with too little CMA memory is useful, but I'm not sure where the best place to put that information would be.
Me neither. Best regards Thomas
Additionally, 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. The patches are compile-time tested building a x86_64 kernel with `make allyesconfig && make drivers/gpu/drm`. Danilo Krummrich (3): drm/fb: rename FB CMA helpers to FB DMA helpers drm/gem: rename GEM CMA helpers to GEM DMA helpers drm/todo: remove task to rename CMA helpers Documentation/gpu/drm-kms-helpers.rst | 8 +- Documentation/gpu/drm-mm.rst | 16 +- Documentation/gpu/todo.rst | 13 - drivers/gpu/drm/Kconfig | 4 +- drivers/gpu/drm/Makefile | 6 +- drivers/gpu/drm/arm/Kconfig | 4 +- drivers/gpu/drm/arm/display/Kconfig | 2 +- .../arm/display/komeda/komeda_framebuffer.c | 10 +- .../gpu/drm/arm/display/komeda/komeda_kms.c | 10 +- drivers/gpu/drm/arm/hdlcd_crtc.c | 6 +- drivers/gpu/drm/arm/hdlcd_drv.c | 8 +- drivers/gpu/drm/arm/malidp_drv.c | 10 +- drivers/gpu/drm/arm/malidp_mw.c | 6 +- drivers/gpu/drm/arm/malidp_planes.c | 24 +- drivers/gpu/drm/armada/armada_gem.c | 6 +- drivers/gpu/drm/aspeed/Kconfig | 2 +- drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 8 +- drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 8 +- drivers/gpu/drm/atmel-hlcdc/Kconfig | 2 +- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 6 +- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 6 +- ...rm_fb_cma_helper.c => drm_fb_dma_helper.c} | 52 +-- drivers/gpu/drm/drm_file.c | 2 +- drivers/gpu/drm/drm_format_helper.c | 4 +- ..._gem_cma_helper.c => drm_gem_dma_helper.c} | 296 +++++++++--------- drivers/gpu/drm/drm_mipi_dbi.c | 2 +- drivers/gpu/drm/fsl-dcu/Kconfig | 2 +- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 8 +- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c | 2 +- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 8 +- drivers/gpu/drm/hisilicon/kirin/Kconfig | 2 +- .../gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 10 +- .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 4 +- drivers/gpu/drm/imx/Kconfig | 2 +- drivers/gpu/drm/imx/dcss/Kconfig | 2 +- drivers/gpu/drm/imx/dcss/dcss-kms.c | 6 +- drivers/gpu/drm/imx/dcss/dcss-plane.c | 18 +- drivers/gpu/drm/imx/imx-drm-core.c | 10 +- drivers/gpu/drm/imx/imx-drm.h | 2 +- drivers/gpu/drm/imx/ipuv3-crtc.c | 4 +- drivers/gpu/drm/imx/ipuv3-plane.c | 28 +- drivers/gpu/drm/ingenic/Kconfig | 2 +- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 14 +- drivers/gpu/drm/ingenic/ingenic-ipu.c | 12 +- drivers/gpu/drm/kmb/Kconfig | 2 +- drivers/gpu/drm/kmb/kmb_drv.c | 6 +- drivers/gpu/drm/kmb/kmb_plane.c | 10 +- drivers/gpu/drm/mcde/Kconfig | 2 +- drivers/gpu/drm/mcde/mcde_display.c | 8 +- drivers/gpu/drm/mcde/mcde_drv.c | 10 +- drivers/gpu/drm/mediatek/Kconfig | 2 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 +- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 4 +- drivers/gpu/drm/meson/Kconfig | 2 +- drivers/gpu/drm/meson/meson_drv.c | 10 +- drivers/gpu/drm/meson/meson_overlay.c | 12 +- drivers/gpu/drm/meson/meson_plane.c | 8 +- drivers/gpu/drm/msm/msm_drv.c | 2 +- drivers/gpu/drm/mxsfb/Kconfig | 2 +- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 6 +- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 10 +- drivers/gpu/drm/panel/Kconfig | 2 +- drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 6 +- drivers/gpu/drm/pl111/Kconfig | 2 +- drivers/gpu/drm/pl111/pl111_display.c | 8 +- drivers/gpu/drm/pl111/pl111_drv.c | 10 +- drivers/gpu/drm/rcar-du/Kconfig | 2 +- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 4 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 6 +- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 38 +-- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 8 +- drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 6 +- drivers/gpu/drm/rockchip/Kconfig | 2 +- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 +- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 4 +- drivers/gpu/drm/shmobile/Kconfig | 2 +- drivers/gpu/drm/shmobile/shmob_drm_crtc.c | 10 +- drivers/gpu/drm/shmobile/shmob_drm_drv.c | 6 +- drivers/gpu/drm/shmobile/shmob_drm_kms.c | 4 +- drivers/gpu/drm/shmobile/shmob_drm_kms.h | 2 +- drivers/gpu/drm/shmobile/shmob_drm_plane.c | 10 +- drivers/gpu/drm/solomon/ssd130x.c | 2 +- drivers/gpu/drm/sprd/Kconfig | 2 +- drivers/gpu/drm/sprd/sprd_dpu.c | 10 +- drivers/gpu/drm/sprd/sprd_drm.c | 6 +- drivers/gpu/drm/sti/Kconfig | 2 +- drivers/gpu/drm/sti/sti_cursor.c | 14 +- drivers/gpu/drm/sti/sti_drv.c | 8 +- drivers/gpu/drm/sti/sti_gdp.c | 18 +- drivers/gpu/drm/sti/sti_hqvdp.c | 18 +- drivers/gpu/drm/sti/sti_plane.c | 4 +- drivers/gpu/drm/stm/Kconfig | 2 +- drivers/gpu/drm/stm/drv.c | 12 +- drivers/gpu/drm/stm/ltdc.c | 16 +- drivers/gpu/drm/sun4i/Kconfig | 2 +- drivers/gpu/drm/sun4i/sun4i_backend.c | 6 +- drivers/gpu/drm/sun4i/sun4i_drv.c | 10 +- drivers/gpu/drm/sun4i/sun4i_frontend.c | 10 +- drivers/gpu/drm/sun4i/sun8i_mixer.c | 4 +- drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 8 +- drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 8 +- drivers/gpu/drm/tegra/fb.c | 2 +- drivers/gpu/drm/tidss/Kconfig | 2 +- drivers/gpu/drm/tidss/tidss_crtc.c | 4 +- drivers/gpu/drm/tidss/tidss_dispc.c | 12 +- drivers/gpu/drm/tidss/tidss_drv.c | 6 +- drivers/gpu/drm/tidss/tidss_kms.c | 2 +- drivers/gpu/drm/tidss/tidss_plane.c | 2 +- drivers/gpu/drm/tilcdc/Kconfig | 2 +- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 8 +- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 6 +- drivers/gpu/drm/tiny/Kconfig | 22 +- drivers/gpu/drm/tiny/arcpgu.c | 12 +- drivers/gpu/drm/tiny/hx8357d.c | 6 +- drivers/gpu/drm/tiny/ili9163.c | 6 +- drivers/gpu/drm/tiny/ili9225.c | 12 +- drivers/gpu/drm/tiny/ili9341.c | 6 +- drivers/gpu/drm/tiny/ili9486.c | 6 +- drivers/gpu/drm/tiny/mi0283qt.c | 6 +- drivers/gpu/drm/tiny/panel-mipi-dbi.c | 6 +- drivers/gpu/drm/tiny/repaper.c | 12 +- drivers/gpu/drm/tiny/st7586.c | 12 +- drivers/gpu/drm/tiny/st7735r.c | 6 +- drivers/gpu/drm/tve200/Kconfig | 2 +- drivers/gpu/drm/tve200/tve200_display.c | 12 +- drivers/gpu/drm/tve200/tve200_drv.c | 8 +- drivers/gpu/drm/v3d/v3d_drv.c | 2 +- drivers/gpu/drm/v3d/v3d_gem.c | 4 +- drivers/gpu/drm/vc4/Kconfig | 2 +- drivers/gpu/drm/vc4/vc4_bo.c | 44 +-- drivers/gpu/drm/vc4/vc4_crtc.c | 10 +- drivers/gpu/drm/vc4/vc4_drv.c | 8 +- drivers/gpu/drm/vc4/vc4_drv.h | 18 +- drivers/gpu/drm/vc4/vc4_gem.c | 4 +- drivers/gpu/drm/vc4/vc4_plane.c | 10 +- drivers/gpu/drm/vc4/vc4_render_cl.c | 26 +- drivers/gpu/drm/vc4/vc4_txp.c | 6 +- drivers/gpu/drm/vc4/vc4_v3d.c | 4 +- drivers/gpu/drm/vc4/vc4_validate.c | 16 +- drivers/gpu/drm/vc4/vc4_validate_shaders.c | 2 +- drivers/gpu/drm/xlnx/Kconfig | 2 +- drivers/gpu/drm/xlnx/zynqmp_disp.c | 4 +- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 8 +- ...rm_fb_cma_helper.h => drm_fb_dma_helper.h} | 10 +- include/drm/drm_gem.h | 2 +- ..._gem_cma_helper.h => drm_gem_dma_helper.h} | 154 ++++----- 146 files changed, 777 insertions(+), 790 deletions(-) rename drivers/gpu/drm/{drm_fb_cma_helper.c => drm_fb_dma_helper.c} (68%) rename drivers/gpu/drm/{drm_gem_cma_helper.c => drm_gem_dma_helper.c} (60%) rename include/drm/{drm_fb_cma_helper.h => drm_fb_dma_helper.h} (56%) rename include/drm/{drm_gem_cma_helper.h => drm_gem_dma_helper.h} (53%)
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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