pvr_page_ta...et_or_insert(9)
okay so bestie, welcome to the Kernel API Manual page for pvr_page_table_l1_get_or_insert(9) π β the header is out here literally saying pvr_page_ta...et_or_insert(9) (truncated icon behavior, honestly), but the actual function is the level 1 page table get-or-insert situation. it lives in the PowerVR MMU corner of the kernel and it is lowkey doing exactly what the name says π
β¨ NAME β¨
pvr_page_table_l1_get_or_insert β retrieves a level 1 page table from the specified level 2 page table entry, and optionally inserts one if that's necessary. that's the whole vibe π
π¦ SYNOPSIS π¦
int pvr_page_table_l1_get_or_insert (struct pvr_mmu_op_context *op_ctx ,
bool should_insert );
π ARGUMENTS π
op_ctxβ the target MMU op context, aka the main character of this call π«Άshould_insertβ[IN]; specifies whether new page tables should be inserted when empty page table entries are encountered during traversal. yes bestie, it's the "do we build it or not" switch β¨
π RETURN π
0on success, or
okay the "or" is doing a lot of heavy lifting here β the conditional return lore is right below in DESCRIPTION, bestie π
πΈ DESCRIPTION πΈ
If should_insert is false:
-ENXIOif a level 1 page table would have been inserted. so if it would have needed to insert one, you get-ENXIOinstead. periodt π
If should_insert is true:
- Any error encountered while inserting the level 1 page table. literally any error from that insert can come back out π₯
π₯ SEE ALSO π₯
Kernel file: ./drivers/gpu/drm/imagination/pvr_mmu.c
the whole extended universe of related pages, no skips, no cap:
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_fini(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_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 π and for the cute sign-off: source/version is ./drivers/gpu/drm/imagination, the date is October 2026, and the footer also name-drops pvr_page_ta...et_or_insert(9). bye bestie, go read your page tables π«Άπ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms