vmw_fifo_mem_write(9)

✨ vmw_fifo_mem_write ✨

okay so this little cutie lives in the kernel API manual (section 9, iykyk) and honestly? she's giving tiny but mighty 💅 she does exactly one thing and she does it slayfully.

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🌸 SYNOPSIS 🌸

void vmw_fifo_mem_write (struct vmw_private *vmw , u32 fifo_reg , u32
value );

like, that's the whole vibe. no cap. 🫶

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🎀 ARGUMENTS 🎀

• vmw — the device private structure, aka the main character of this whole situation ✨
• fifo_reg — the fifo register you're writing to, bestie. pick wisely 💖
• value — the actual value going in. this is the payload, the moment, the content 🦋

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💜 DESCRIPTION 💜

so the way that this works is: this function is intended to be equivalent to iowrite32 on memremap'd memory — but, and this is the iconic part — without byteswapping 😌

literally that's it. that's the whole function. no extra drama, no bytes getting flipped behind your back. highkey respectful of your data. 🙈

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🌈 SEE ALSO 🌈

okay this list is LONG so buckle up bestie, we're going on a journey 🧚

• Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_drv.h — the source file, the mothership, the origin story 💫
• struct vmw_resource(9)
• struct vmw_surface_metadata(9)
• struct vmw_surface(9)
• struct vmw_res_cache_entry(9)
• enum vmw_dma_map_mode(9)
• struct vmw_sg_table(9)
• struct vmw_piter(9)
• struct vmw_sw_context(9)
• enum vmw_sm_type(9)
• has_sm4_context(9)
• has_sm4_1_context(9)
• has_sm5_context(9)
• has_gl43_context(9)
• vmw_resource_mob_attached(9)
• vmw_fifo_caps(9)
• vmw_is_cursor_bypass3_enabled(9)
• vmw_piter_next(9)
• vmw_piter_dma_addr(9)
• vmw_piter_page(9)
• struct vmw_diff_cpy(9)
• VMW_DEBUG_USER(9)
• VMW_DEBUG_KMS(9)
• vmw_fifo_mem_read(9) — yes she has a sibling 👑 the read to her write, the loml fr fr

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💀 reminder bestie: no byteswapping happens here. if you were expecting iowrite32 behaviour with the swappy bits, this is not that. read the description again. i'll wait. 🍓

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and that's the page!! shortest manpage ever but she ate 💅 this one's from ./drivers/gpu/drm/vmwgfx, dated October 2026 — catch you in the next one bestie, mwah 😭💖🌟