mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
Jianxiong Pan
c1916ee5d3
PD#SWPL-94445 Problem: gki break. Solution: move the config to meet the gki request. Verify: build pass. Change-Id: I6b878a5d8fc10317634143b815a69b2206753033 Signed-off-by: Jianxiong Pan <jianxiong.pan@amlogic.com>
203 lines
5.9 KiB
C
203 lines
5.9 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
|
|
/*
|
|
* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
|
|
*/
|
|
#include <linux/slab.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/export.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/sections.h>
|
|
#include <linux/sizes.h>
|
|
#include <asm/memory.h>
|
|
#include <linux/init.h>
|
|
#include <linux/initrd.h>
|
|
#include <linux/gfp.h>
|
|
#include <linux/memblock.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/amlogic/mem_debug.h>
|
|
#include <linux/crash_dump.h>
|
|
#ifdef CONFIG_ARM64
|
|
#include <asm/boot.h>
|
|
#endif
|
|
#include <asm/fixmap.h>
|
|
#include <linux/kasan.h>
|
|
#include <linux/seq_file.h>
|
|
#ifdef CONFIG_HIGHMEM
|
|
#include <asm/highmem.h>
|
|
#endif
|
|
#ifdef CONFIG_AMLOGIC_CMA
|
|
#include <linux/amlogic/aml_cma.h>
|
|
#endif
|
|
#ifdef CONFIG_AMLOGIC_VMAP
|
|
#include <linux/amlogic/vmap_stack.h>
|
|
#endif
|
|
|
|
void dump_mem_layout(char *buf)
|
|
{
|
|
#define MLK(b, t) b, t, ((t) - (b)) >> 10
|
|
#define MLM(b, t) b, t, ((t) - (b)) >> 20
|
|
#define MLG(b, t) b, t, ((t) - (b)) >> 30
|
|
#define MLK_ROUNDUP(b, t) b, t, DIV_ROUND_UP(((t) - (b)), SZ_1K)
|
|
#ifdef CONFIG_ARM64
|
|
int pos = 0;
|
|
|
|
pos += sprintf(buf + pos, "Virtual kernel memory layout:\n");
|
|
#ifdef CONFIG_KASAN_GENERIC
|
|
pos += sprintf(buf + pos, " kasan : 0x%16lx - 0x%16lx (%6ld GB)\n",
|
|
MLG(KASAN_SHADOW_START, KASAN_SHADOW_END));
|
|
#endif
|
|
pos += sprintf(buf + pos, " modules : 0x%16lx - 0x%16lx (%6ld MB)\n",
|
|
MLM(MODULES_VADDR, MODULES_END));
|
|
pos += sprintf(buf + pos, " vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n",
|
|
MLG(VMALLOC_START, VMALLOC_END));
|
|
pos += sprintf(buf + pos, " .text : 0x%px" " - 0x%px" " (%6ld KB) 0x%lx\n",
|
|
MLK_ROUNDUP(_text, _etext), (unsigned long)__pa_symbol(_text));
|
|
pos += sprintf(buf + pos, " .rodata : 0x%px" " - 0x%px" " (%6ld KB) 0x%lx\n",
|
|
MLK_ROUNDUP(__start_rodata, __init_begin),
|
|
(unsigned long)__pa_symbol(__start_rodata));
|
|
pos += sprintf(buf + pos, " .init : 0x%px" " - 0x%px" " (%6ld KB) 0x%lx\n",
|
|
MLK_ROUNDUP(__init_begin, __init_end),
|
|
(unsigned long)__pa_symbol(__start_rodata));
|
|
pos += sprintf(buf + pos, " .data : 0x%px" " - 0x%px" " (%6ld KB) 0x%lx\n",
|
|
MLK_ROUNDUP(_sdata, _edata),
|
|
(unsigned long)__pa_symbol(_sdata));
|
|
pos += sprintf(buf + pos, " .bss : 0x%px" " - 0x%px" " (%6ld KB) 0x%lx\n",
|
|
MLK_ROUNDUP(__bss_start, __bss_stop),
|
|
(unsigned long)__pa_symbol(__bss_start));
|
|
pos += sprintf(buf + pos, " fixed : 0x%16lx - 0x%16lx (%6ld KB)\n",
|
|
MLK(FIXADDR_START, FIXADDR_TOP));
|
|
pos += sprintf(buf + pos, " PCI I/O : 0x%16lx - 0x%16lx (%6ld MB)\n",
|
|
MLM(PCI_IO_START, PCI_IO_END));
|
|
#ifdef CONFIG_SPARSEMEM_VMEMMAP
|
|
pos += sprintf(buf + pos, " vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n",
|
|
MLG(VMEMMAP_START, VMEMMAP_START + VMEMMAP_SIZE));
|
|
pos += sprintf(buf + pos, " 0x%16lx - 0x%16lx (%6ld MB actual)\n",
|
|
MLM((unsigned long)phys_to_page(memblock_start_of_DRAM()),
|
|
(unsigned long)virt_to_page(high_memory)));
|
|
#endif
|
|
pos += sprintf(buf + pos, " memory : 0x%16lx - 0x%16lx (%6ld MB) 0x%lx\n",
|
|
MLM(__phys_to_virt(memblock_start_of_DRAM()),
|
|
(unsigned long)high_memory), (unsigned long)memblock_start_of_DRAM());
|
|
pos += sprintf(buf + pos, " offset : 0x%lx\n", kaslr_offset());
|
|
#else
|
|
sprintf(buf, "Virtual kernel memory layout:\n"
|
|
#ifdef CONFIG_KASAN
|
|
" kasan : 0x%08lx - 0x%08lx (%4ld MB)\n"
|
|
#endif
|
|
#ifdef CONFIG_HAVE_TCM
|
|
" DTCM : 0x%08lx - 0x%08lx (%4ld kB)\n"
|
|
" ITCM : 0x%08lx - 0x%08lx (%4ld kB)\n"
|
|
#endif
|
|
" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
|
|
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
|
|
" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
|
|
#ifdef CONFIG_HIGHMEM
|
|
" pkmap : 0x%08lx - 0x%08lx (%4ld MB)\n"
|
|
#endif
|
|
#ifdef CONFIG_MODULES
|
|
" modules : 0x%08lx - 0x%08lx (%4ld MB)\n"
|
|
#endif
|
|
" .text : 0x%px" " - 0x%px" " (%4td kB)\n"
|
|
" .init : 0x%px" " - 0x%px" " (%4td kB)\n"
|
|
" .data : 0x%px" " - 0x%px" " (%4td kB)\n"
|
|
" .bss : 0x%px" " - 0x%px" " (%4td kB)\n",
|
|
#ifdef CONFIG_KASAN
|
|
MLM(KASAN_SHADOW_START, KASAN_SHADOW_END),
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAVE_TCM
|
|
MLK(DTCM_OFFSET, (unsigned long) dtcm_end),
|
|
MLK(ITCM_OFFSET, (unsigned long) itcm_end),
|
|
#endif
|
|
MLK(FIXADDR_START, FIXADDR_END),
|
|
MLM(VMALLOC_START, VMALLOC_END),
|
|
MLM(PAGE_OFFSET, (unsigned long)high_memory),
|
|
#ifdef CONFIG_HIGHMEM
|
|
MLM(PKMAP_BASE, (PKMAP_BASE) + (LAST_PKMAP) *
|
|
(PAGE_SIZE)),
|
|
#endif
|
|
#ifdef CONFIG_MODULES
|
|
MLM(MODULES_VADDR, MODULES_END),
|
|
#endif
|
|
|
|
MLK_ROUNDUP(_text, _etext),
|
|
MLK_ROUNDUP(__init_begin, __init_end),
|
|
MLK_ROUNDUP(_sdata, _edata),
|
|
MLK_ROUNDUP(__bss_start, __bss_stop));
|
|
#endif
|
|
}
|
|
|
|
static int mdebug_show(struct seq_file *m, void *arg)
|
|
{
|
|
char *buf = kmalloc(4096, GFP_KERNEL);
|
|
|
|
if (!buf) {
|
|
pr_err("%s failed\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
/* update only once */
|
|
dump_mem_layout(buf);
|
|
seq_printf(m, "%s\n", buf);
|
|
|
|
kfree(buf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mdebug_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, mdebug_show, NULL);
|
|
}
|
|
|
|
static const struct proc_ops mdebug_ops = {
|
|
.proc_open = mdebug_open,
|
|
.proc_read = seq_read,
|
|
.proc_lseek = seq_lseek,
|
|
.proc_release = single_release,
|
|
};
|
|
|
|
void dump_mem_layout_boot_phase(void)
|
|
{
|
|
char *buf = (void *)__get_free_page(GFP_KERNEL);
|
|
|
|
if (!buf) {
|
|
pr_err("%s alloc buffer failed\n", __func__);
|
|
} else {
|
|
dump_mem_layout(buf);
|
|
pr_notice("%s\n", buf);
|
|
free_page((unsigned long)buf);
|
|
}
|
|
}
|
|
|
|
static int __init memory_debug_init(void)
|
|
{
|
|
struct proc_dir_entry *d_mdebug;
|
|
|
|
d_mdebug = proc_create("mem_debug", 0444, NULL, &mdebug_ops);
|
|
if (IS_ERR_OR_NULL(d_mdebug)) {
|
|
pr_err("%s, create proc failed\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
rootfs_initcall(memory_debug_init);
|
|
|
|
/*
|
|
* These information will auto inject to /proc/meminfo sysfs
|
|
*/
|
|
void arch_report_meminfo(struct seq_file *m)
|
|
{
|
|
#ifdef CONFIG_AMLOGIC_CMA
|
|
seq_printf(m, "DriverCma: %8ld kB\n",
|
|
get_cma_allocated() * (1 << (PAGE_SHIFT - 10)));
|
|
#endif
|
|
#ifdef CONFIG_AMLOGIC_VMAP
|
|
vmap_report_meminfo(m);
|
|
#endif
|
|
}
|
|
|