radeon_device_init(9)

💖 NAME 💖

okay bestie, welcome to radeon_device_init(9) from the Kernel API Manual. This page is literally about radeon_device_init - initialize the driver — it's giving driver-startup main character energy, and we're gonna go through every arg and every ref, no cap. 💅

✨ SYNOPSIS ✨

the whole flex is this signature, and yes you copy it exactly:

int radeon_device_init (struct radeon_device *rdev , struct drm_device
       *ddev , struct pci_dev *pdev , uint32_t flags );

🎀 ARGUMENTS 🎀

four args, bestie — here's the vibe check on each:

• rdev — radeon_device pointer 🫶
• ddev — drm dev pointer ✨
• pdev — pci dev pointer 🦋
• flags — driver flags 🎀

🦋 DESCRIPTION 🦋

so what does it actually do? It initializes the driver info and hw (all asics). That's the whole description, and it's iconic. Returns 0 for success or an error on failure. Called at driver startup. 🌸

lowkey important: success is 0, failure is an error. That's the contract, no cap. 🙈

🌈 SEE ALSO 🌈

Kernel file: ./drivers/gpu/drm/radeon/radeon_device.c — that's the source file, bestie, and it's right in the SEE ALSO section. The whole friend group is here:

• 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_vga_set_decode(9)
• radeon_gart_size_auto(9)
• radeon_check_arguments(9)
• radeon_switcheroo_set_state(9)
• radeon_switcheroo_can_switch(9)
• radeon_device_fini(9)
• radeon_gpu_reset(9)

✧･ﾟ: okay that's the whole page, bestie! Sign-off from the footer: source/version ./drivers/gpu/drm/radeon, date October 2026, page radeon_device_init(9). mwah :･ﾟ✧ 💖