pvr_mmu_backing_page_fini(9)

💖 NAME 💖

okay so this is pvr_mmu_backing_page_fini(9) from the Kernel API Manual — and the actual NAME line is: pvr_mmu_backing_page_fini — Teardown a MMU backing page. 🧚

✨ SYNOPSIS ✨

void pvr_mmu_backing_page_fini (struct pvr_mmu_backing_page *page );

🎀 ARGUMENTS 🎀

• page — Target backing page. yes bestie, this is the one getting torn down 🫶

🦋 DESCRIPTION 🦋

okay so pvr_mmu_backing_page_fini() performs the mirror operations to pvr_mmu_backing_page_init, in reverse order — no cap:

1. Unmap the page from DMA-space,
2. Unmap the page from the CPU, and
3. Free the page.

it also zeros page. 🫧

and the iconic part? it is a no-op to call this function a second (or further) time on any page. so calling it again is just a no-op, periodt. 💅

🌈 SEE ALSO 🌈

okay bestie, the SEE ALSO section is giving full group chat — every single ref is here:

• Kernel file ./drivers/gpu/drm/imagination/pvr_mmu.c
• pvr_mmu_set_flush_flags(9)
• pvr_mmu_flush_request_all(9)
• pvr_mmu_flush_exec(9)
• PowerVR Virtual Memory Handling(9)
• PowerVR Virtual Memory Handling (constants)(9)
• MMU backing pages(9)
• MMU backing pages (constants)(9)
• struct pvr_mmu_backing_page(9)
• pvr_mmu_backing_page_init(9)
• pvr_mmu_backing_page_sync(9)
• Raw page tables(9)
• struct pvr_page_table_l2_entry_raw(9)
• pvr_page_table_l2_entry_raw_set(9)
• struct pvr_page_table_l1_entry_raw(9)
• pvr_page_table_l1_entry_raw_set(9)
• struct pvr_page_table_l0_entry_raw(9)
• struct pvr_page_flags_raw(9)
• pvr_page_table_l0_entry_raw_set(9)
• pvr_page_flags_raw_create(9)
• struct pvr_page_table_l2_raw(9)
• struct pvr_page_table_l1_raw(9)
• struct pvr_page_table_l0_raw(9)
• Mirror page tables(9)
• struct pvr_page_table_l2(9)
• pvr_page_table_l2_init(9)
• pvr_page_table_l2_fini(9)
• pvr_page_table_l2_sync(9)
• pvr_page_table_l2_get_raw(9)
• pvr_page_table_l2_get_entry_raw(9)
• pvr_page_table_l2_entry_is_valid(9)
• struct pvr_page_table_l1(9)
• pvr_page_table_l1_init(9)
• pvr_page_table_l1_free(9)
• pvr_page_table_l1_sync(9)
• pvr_page_table_l1_get_raw(9)
• pvr_page_table_l1_get_entry_raw(9)
• pvr_page_table_l1_entry_is_valid(9)
• struct pvr_page_table_l0(9)
• pvr_page_table_l0_init(9)
• pvr_page_table_l0_free(9)
• pvr_page_table_l0_sync(9)
• pvr_page_table_l0_get_raw(9)
• pvr_page_table_l0_get_entry_raw(9)
• pvr_page_table_l0_entry_is_valid(9)
• struct pvr_mmu_context(9)
• struct pvr_page_table_ptr(9)
• struct pvr_mmu_op_context(9)
• pvr_page_table_l2_insert(9)
• pvr_page_table_l2_remove(9)
• pvr_page_table_l1_insert(9)
• pvr_page_table_l1_remove(9)
• pvr_page_table_l0_insert(9)
• pvr_page_table_l0_remove(9)
• Page table index utilities(9)
• pvr_page_table_l2_idx(9)
• pvr_page_table_l1_idx(9)
• pvr_page_table_l0_idx(9)
• High-level page table operations(9)
• pvr_page_table_l1_get_or_insert(9)
• pvr_page_table_l0_get_or_insert(9)
• pvr_mmu_context_create(9)
• pvr_mmu_context_destroy(9)
• pvr_mmu_get_root_table_dma_addr(9)
• pvr_page_table_l1_alloc(9)
• pvr_page_table_l0_alloc(9)
• pvr_mmu_op_context_require_sync(9)
• pvr_mmu_op_context_sync_manual(9)
• pvr_mmu_op_context_sync_partial(9)
• pvr_mmu_op_context_sync(9)
• pvr_mmu_op_context_load_tables(9)
• pvr_mmu_op_context_set_curr_page(9)
• pvr_mmu_op_context_next_page(9)
• Single page operations(9)
• pvr_page_create(9)
• pvr_page_destroy(9)
• pvr_mmu_op_context_destroy(9)
• pvr_mmu_op_context_create(9)
• pvr_mmu_op_context_unmap_curr_page(9)
• pvr_mmu_unmap(9)
• pvr_mmu_map_sgl(9)
• pvr_mmu_map(9)

mwah 💋 source/version: ./drivers/gpu/drm/imagination · date: October 2026 · page: pvr_mmu_backing_page_fini(9) 🫶