pvr_page_table_l1_alloc(9)
π pvr_page_table_l1_alloc β from the Kernel API Manual β¨
okay so real talk, bestie β this one lives in the Kernel API Manual, and it's basically the "make me a brand new l1 page table babe" function. like, you hand it a context and it hands you back a whole fresh page table object. iconic behaviour honestly π
β¨ NAME β¨
pvr_page_table_l1_alloc β allocates you a l1 page_table object, no cap π¦
πΈ SYNOPSIS πΈ
struct pvr_page_table_l1 * pvr_page_table_l1_alloc (struct pvr_mmu_context *ctx );
π ARGUMENTS π
ctxβ the MMU context of the owning VM context. like, whose page table is this? that one. π«Ά
π₯ RETURN π₯
the way this returns one of three things, so pay attention bestie:
- a newly created page table object on success π (slay, we love a win)
-ENOMEMif no memory is available π (the classic "no thoughts, head empty, no RAM" moment)- any error code returned by
pvr_page_table_l1_init
π SEE ALSO π
okay so there is a lot of lore here and i'm not skipping a single crumb, periodt. the whole extended universe:
- 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_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_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_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)
lowkey that's a whole syllabus but i said what i said, every single ref is here, go read them, iykyk ππ
that's the whole page bestie β live from ./drivers/gpu/drm/imagination, dated October 2026, and it's giving kernel source realness π§ββοΈπ mwah, study up and stan the MMU πβ
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