162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci#include <linux/kernel.h> 362306a36Sopenharmony_ci#include <linux/module.h> 462306a36Sopenharmony_ci#include <linux/export.h> 562306a36Sopenharmony_ci#include <linux/mm.h> 662306a36Sopenharmony_ci#include <linux/vmalloc.h> 762306a36Sopenharmony_ci#include <linux/slab.h> 862306a36Sopenharmony_ci#include <linux/sizes.h> 962306a36Sopenharmony_ci#include <linux/io.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <asm/page.h> 1262306a36Sopenharmony_ci#ifdef CONFIG_MIPS 1362306a36Sopenharmony_ci#include <asm/bootinfo.h> 1462306a36Sopenharmony_ci#endif 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_cistruct foo { 1762306a36Sopenharmony_ci unsigned int bar; 1862306a36Sopenharmony_ci}; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_cistatic struct foo *foo; 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_cistatic int __init test_debug_virtual_init(void) 2362306a36Sopenharmony_ci{ 2462306a36Sopenharmony_ci phys_addr_t pa; 2562306a36Sopenharmony_ci void *va; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci va = (void *)VMALLOC_START; 2862306a36Sopenharmony_ci pa = virt_to_phys(va); 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va); 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci foo = kzalloc(sizeof(*foo), GFP_KERNEL); 3362306a36Sopenharmony_ci if (!foo) 3462306a36Sopenharmony_ci return -ENOMEM; 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci pa = virt_to_phys(foo); 3762306a36Sopenharmony_ci va = foo; 3862306a36Sopenharmony_ci pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va); 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci return 0; 4162306a36Sopenharmony_ci} 4262306a36Sopenharmony_cimodule_init(test_debug_virtual_init); 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_cistatic void __exit test_debug_virtual_exit(void) 4562306a36Sopenharmony_ci{ 4662306a36Sopenharmony_ci kfree(foo); 4762306a36Sopenharmony_ci} 4862306a36Sopenharmony_cimodule_exit(test_debug_virtual_exit); 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 5162306a36Sopenharmony_ciMODULE_DESCRIPTION("Test module for CONFIG_DEBUG_VIRTUAL"); 52