pvr_page_table_l1_init(9)
π pvr_page_table_l1_init(9) β okay bestie, let's build us a level 1 page table β¨
So this is a page from the Kernel API Manual, section 9, and the star of the show is pvr_page_table_l1_init β literally the glow-up ritual for a level 1 page table. Do not skip the fine print, I'm begging π₯Ί
β¨ NAME β¨
pvr_page_table_l1_init β Initialize a level 1 page table. That's it, that's the whole vibe. πΈ
π¦ SYNOPSIS π¦
int pvr_page_table_l1_init (struct pvr_page_table_l1 *table , struct
pvr_device *pvr_dev );
π ARGUMENTS π
tableβ the target level 1 page table. This is the one getting the makeover, bestie πpvr_devβ the target PowerVR device. It's the main character that owns the whole situation π
π DESCRIPTION π
Okay so, plot twist: even when this function returns successfully, table is still not considered valid. Not yet. Not even a little. π«
It has to be inserted into the page table tree structure with pvr_page_table_l2_insert before it's ready for use β like, it's built but it hasn't moved into the group chat yet, y'know?
Also, key requirement: table is expected to be zeroed (e.g. from kzalloc) before calling this function. Zero it first, then call. That's the order. No cap. π
β RETURN β
0on success β slay, we love to see it β¨ or- any error encountered while initializing
table->backing_pageusingpvr_mmu_backing_page_initβ in which case, not the vibe π
π SEE ALSO π
Kernel file:
./drivers/gpu/drm/imagination/pvr_mmu.c
And the whole extended friend group, in order, no one left behind π«Ά:
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_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)
Reminder bestie: success does not mean valid. Init β ready. You still gottapvr_page_table_l2_insertit, and you gotta zerotablefirst (hikzallocπ). π§
Okay that's the page!! Sourced straight from ./drivers/gpu/drm/imagination, dated October 2026 β so futuristic of it honestly π Byeee, go init those page tables responsibly ππ
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