radeon_vga_set_decode(9)

✨ radeon_vga_set_decode ✨

okay so bestie, let me tell you about this little kernel function from the Kernel API Manual — it's called radeon_vga_set_decode and it's literally the vibe check for your VGA decode situation 💅

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🦋 SYNOPSIS 🦋

unsigned int radeon_vga_set_decode (struct pci_dev *pdev , bool state );

like, that's the whole signature, no cap ✨

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🎀 ARGUMENTS 🎀

• pdev — the PCI device, aka the main character here 🖥️
• state — turns vga decode on or off, simple as that 💖

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🌸 DESCRIPTION 🌸

so what it does is enable/disable vga decode across all asics — yes queen, every single one — and then it returns the VGA resource flags for you 🫶

it's giving "utility function that just works," periodt ✨

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👑 SEE ALSO 👑

bestie there are SO many siblings in this kernel family, lemme list them all for you:

• the kernel file itself lives at ./drivers/gpu/drm/radeon/radeon_device.c 📁
• radeon_program_register_sequence(9)
• radeon_surface_init(9)
• radeon_scratch_init(9)
• radeon_scratch_get(9)
• radeon_scratch_free(9)
• radeon_doorbell_init(9)
• radeon_doorbell_fini(9)
• radeon_doorbell_get(9)
• radeon_doorbell_free(9)
• radeon_wb_disable(9)
• radeon_wb_fini(9)
• radeon_wb_init(9)
• radeon_vram_location(9)
• radeon_gtt_location(9)
• radeon_card_posted(9)
• radeon_update_bandwidth_info(9)
• radeon_boot_test_post_card(9)
• radeon_dummy_page_init(9)
• radeon_dummy_page_fini(9)
• cail_pll_read(9)
• cail_pll_write(9)
• cail_mc_read(9)
• cail_mc_write(9)
• cail_reg_write(9)
• cail_reg_read(9)
• cail_ioreg_write(9)
• cail_ioreg_read(9)
• radeon_atombios_init(9)
• radeon_atombios_fini(9)
• radeon_combios_init(9)
• radeon_combios_fini(9)
• radeon_gart_size_auto(9)
• radeon_check_arguments(9)
• radeon_switcheroo_set_state(9)
• radeon_switcheroo_can_switch(9)
• radeon_device_init(9)
• radeon_device_fini(9)
• radeon_gpu_reset(9)

like, that's a whole friend group right there 😭💀

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anyway bestie, this page is from ./drivers/gpu/drm/radeon and it's the October 2026 edition of radeon_vga_set_decode(9) — iconic, we stan a documented kernel function 🌈⭐💜

later gator, go forth and decode those VGAs responsibly 🧚‍♀️🍓