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nds32 patches for 5.12

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Here is the nds32 patchset based on 5.11
 Contained in here are
 1. code clean up
 2. code refine
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Merge tag 'nds32-for-linux-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

Pull nds32 updates from Greentime Hu:
 "Code clean-up and refinement"

* tag 'nds32-for-linux-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: Fix bogus reference to <asm/procinfo.h>
  nds32: use get_kernel_nofault in dump_mem
  nds32: remove dump_instr
  nds32: configs: Cleanup CONFIG_CROSS_COMPILE
  nds32: Replace <linux/clk-provider.h> by <linux/of_clk.h>
This commit is contained in:
Linus Torvalds 2021-02-25 09:50:36 -08:00
commit 6c15f9e805
4 changed files with 5 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/nds32/configs/defconfig
View File

@ -1,4 +1,3 @@
CONFIG_CROSS_COMPILE="nds32le-linux-"
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_HIGH_RES_TIMERS=y

2
arch/nds32/kernel/setup.c
View File

@ -52,7 +52,7 @@ EXPORT_SYMBOL(elf_hwcap);
/*
* The following string table, must sync with HWCAP_xx bitmask,
* which is defined in <asm/procinfo.h>
* which is defined above
*/
static const char *hwcap_str[] = {
"mfusr_pc",

2
arch/nds32/kernel/time.c
View File

@ -2,7 +2,7 @@
// Copyright (C) 2005-2017 Andes Technology Corporation
#include <linux/clocksource.h>
#include <linux/clk-provider.h>
#include <linux/of_clk.h>
void __init time_init(void)
{

50
arch/nds32/kernel/traps.c
View File

@ -25,17 +25,8 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr);
void dump_mem(const char *lvl, unsigned long bottom, unsigned long top)
{
unsigned long first;
mm_segment_t fs;
int i;
/*
* We need to switch to kernel mode so that we can use __get_user
* to safely read from kernel space. Note that we now dump the
* code first, just in case the backtrace kills us.
*/
fs = get_fs();
set_fs(KERNEL_DS);
pr_emerg("%s(0x%08lx to 0x%08lx)\n", lvl, bottom, top);
for (first = bottom & ~31; first < top; first += 32) {
@ -48,7 +39,9 @@ void dump_mem(const char *lvl, unsigned long bottom, unsigned long top)
for (p = first, i = 0; i < 8 && p < top; i++, p += 4) {
if (p >= bottom && p < top) {
unsigned long val;
if (__get_user(val, (unsigned long *)p) == 0)
if (get_kernel_nofault(val,
(unsigned long *)p) == 0)
sprintf(str + i * 9, " %08lx", val);
else
sprintf(str + i * 9, " ????????");
@ -56,46 +49,10 @@ void dump_mem(const char *lvl, unsigned long bottom, unsigned long top)
}
pr_emerg("%s%04lx:%s\n", lvl, first & 0xffff, str);
}
set_fs(fs);
}
EXPORT_SYMBOL(dump_mem);
static void dump_instr(struct pt_regs *regs)
{
unsigned long addr = instruction_pointer(regs);
mm_segment_t fs;
char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
int i;
return;
/*
* We need to switch to kernel mode so that we can use __get_user
* to safely read from kernel space. Note that we now dump the
* code first, just in case the backtrace kills us.
*/
fs = get_fs();
set_fs(KERNEL_DS);
pr_emerg("Code: ");
for (i = -4; i < 1; i++) {
unsigned int val, bad;
bad = __get_user(val, &((u32 *) addr)[i]);
if (!bad) {
p += sprintf(p, i == 0 ? "(%08x) " : "%08x ", val);
} else {
p += sprintf(p, "bad PC value");
break;
}
}
pr_emerg("Code: %s\n", str);
set_fs(fs);
}
#define LOOP_TIMES (100)
static void __dump(struct task_struct *tsk, unsigned long *base_reg,
const char *loglvl)
@ -179,7 +136,6 @@ void die(const char *str, struct pt_regs *regs, int err)
if (!user_mode(regs) || in_interrupt()) {
dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK);
dump_instr(regs);
dump_stack();
}