radeon_scratch_init(9)

✨ NAME ✨

radeon_scratch_init — okay so this one inits the scratch register driver info, bestie 💅

This is a page from the Kernel API Manual, and it's all about radeon_scratch_init. Periodt.

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🌸 SYNOPSIS 🌸

void radeon_scratch_init (struct radeon_device *rdev );

That's literally it. One function, one pointer, no return value. Ate and left no crumbs 💖

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🎀 ARGUMENTS 🎀

• rdev — a radeon_device pointer, iykyk. This is your device struct, the main character of the whole operation 👑

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🦋 DESCRIPTION 🦋

So this function initializes the CP scratch register driver information 🫶 — and just so we're clear, that's the CP scratch register driver info for r1xx-r5xx cards, no cap. Ranges are r1xx through r5xx, exactly like that, don't @ me.

That's the whole vibe. It's giving setup, not chaos. ✨

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🔥 SEE ALSO 🔥

The source lives in the kernel file ./drivers/gpu/drm/radeon/radeon_device.c 👑

And here's the whole friend group, fr fr — every single one of them:

radeon_program_register_sequence(9), radeon_surface_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_init(9), radeon_device_fini(9), radeon_gpu_reset(9) 🌈

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ngl, if you're here you probably also need the get and free ones. Free your scratch registers, bestie, it's self care 🧚

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That's the whole page, slay 💜 — this one's from ./drivers/gpu/drm/radeon, dated October 2026, and it's filed under radeon_scratch_init(9). Mwah, go read the kernel 🍓