DRM_GEM_DMA_..._DUMB_CREATE(9)

💅 DRM_GEM_DMA_..._DUMB_CREATE 💅

okay so bestie, you found a page from the Kernel API Manual and the title got truncated by the terminal like it always does 😭 — the real, full name of this macro is DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE, and it's the DMA GEM driver-operations hookup that makes sure you get a virtual address on the buffer. yes ma'am, that's the whole vibe 🎀

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✨ NAME ✨

DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE — DMA GEM driver operations ensuring a virtual address on the buffer 🦋

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🌸 SYNOPSIS 🌸

DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE (dumb_create_func );

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🎀 ARGUMENTS 🎀

• dumb_create_func — the callback function that gets wired up to .dumb_create. that's it, that's the whole argument, she's lowkey minimal 💅

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💖 DESCRIPTION 💖

So here's the tea ☕: this macro is a shortcut — a lil' pre-built bundle — for setting the default GEM operations inside the drm_driver structure, specifically for drivers that need the virtual address also on imported buffers. imported buffers get the vmap treatment too, no cap ✨

She's a variant of DRM_GEM_DMA_DRIVER_OPS_VMAP, made for drivers that override the default implementation of struct drm_driver.dumb_create. so if you're rolling your own dumb_create, this is your girl 🫶

bestie pls hear me: use DRM_GEM_DMA_DRIVER_OPS_VMAP if possible. it's the main-character default and she ate. only reach for this variant when you genuinely need the override.

and if your driver does not require a virtual address on imported buffers? then you want DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE instead. different tool, different job, pick the right one for the vibe check 👑

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🦋 SEE ALSO 🦋

• Kernel file ./include/drm/drm_gem_dma_helper.h
• struct drm_gem_dma_object(9)
• drm_gem_dma_object_free(9)
• drm_gem_dma_object_print_info(9)
• drm_gem_dma_object_get_sg_table(9)
• drm_gem_dma_object_mmap(9)
• DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(9)
• DRM_GEM_DMA_DRIVER_OPS(9)
• DRM_GEM_DMA_DRIVER_OPS_VMAP(9)
• DEFINE_DRM_GEM_DMA_FOPS(9)

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⭐ and that's the page!! this icon came out of the kernel file at ./include/drm, stamped October 2026, straight outta the Kernel API Manual — read it, love it, slay your dumb_create override 💜🧚🌈