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-rw-r--r--arch/unicore32/kernel/Makefile1
-rw-r--r--arch/unicore32/kernel/clock.c8
-rw-r--r--arch/unicore32/kernel/cpu-ucv2.c93
-rw-r--r--arch/unicore32/kernel/early_printk.c14
-rw-r--r--arch/unicore32/kernel/entry.S5
-rw-r--r--arch/unicore32/kernel/ksyms.c41
-rw-r--r--arch/unicore32/kernel/ksyms.h2
-rw-r--r--arch/unicore32/kernel/module.c11
-rw-r--r--arch/unicore32/kernel/pci.c5
-rw-r--r--arch/unicore32/kernel/process.c47
-rw-r--r--arch/unicore32/kernel/puv3-nb0916.c1
-rw-r--r--arch/unicore32/kernel/setup.c4
-rw-r--r--arch/unicore32/kernel/setup.h2
-rw-r--r--arch/unicore32/kernel/signal.c12
-rw-r--r--arch/unicore32/kernel/sys.c10
-rw-r--r--arch/unicore32/kernel/traps.c8
16 files changed, 28 insertions, 236 deletions
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile
index fa497e0efe5..607a72f2ae3 100644
--- a/arch/unicore32/kernel/Makefile
+++ b/arch/unicore32/kernel/Makefile
@@ -9,7 +9,6 @@ obj-y += setup.o signal.o sys.o stacktrace.o traps.o
obj-$(CONFIG_MODULES) += ksyms.o module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_CPU_FREQ) += cpu-ucv2.o
obj-$(CONFIG_UNICORE_FPU_F64) += fpu-ucf64.o
# obj-y for architecture PKUnity v3
diff --git a/arch/unicore32/kernel/clock.c b/arch/unicore32/kernel/clock.c
index 18d4563e6fa..b1ca775f6f6 100644
--- a/arch/unicore32/kernel/clock.c
+++ b/arch/unicore32/kernel/clock.c
@@ -179,7 +179,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
#ifdef CONFIG_CPU_FREQ
if (clk == &clk_mclk_clk) {
- u32 pll_rate, divstatus = PM_DIVSTATUS;
+ u32 pll_rate, divstatus = readl(PM_DIVSTATUS);
int ret, i;
/* lookup mclk_clk_table */
@@ -201,10 +201,10 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
/ (((divstatus & 0x0000f000) >> 12) + 1);
/* set pll sys cfg reg. */
- PM_PLLSYSCFG = pll_rate;
+ writel(pll_rate, PM_PLLSYSCFG);
- PM_PMCR = PM_PMCR_CFBSYS;
- while ((PM_PLLDFCDONE & PM_PLLDFCDONE_SYSDFC)
+ writel(PM_PMCR_CFBSYS, PM_PMCR);
+ while ((readl(PM_PLLDFCDONE) & PM_PLLDFCDONE_SYSDFC)
!= PM_PLLDFCDONE_SYSDFC)
udelay(100);
/* about 1ms */
diff --git a/arch/unicore32/kernel/cpu-ucv2.c b/arch/unicore32/kernel/cpu-ucv2.c
deleted file mode 100644
index 4a99f62584c..00000000000
--- a/arch/unicore32/kernel/cpu-ucv2.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * linux/arch/unicore32/kernel/cpu-ucv2.c: clock scaling for the UniCore-II
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
- * Copyright (C) 2001-2010 Guan Xuetao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/cpufreq.h>
-
-#include <mach/hardware.h>
-
-static struct cpufreq_driver ucv2_driver;
-
-/* make sure that only the "userspace" governor is run
- * -- anything else wouldn't make sense on this platform, anyway.
- */
-int ucv2_verify_speed(struct cpufreq_policy *policy)
-{
- if (policy->cpu)
- return -EINVAL;
-
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
- return 0;
-}
-
-static unsigned int ucv2_getspeed(unsigned int cpu)
-{
- struct clk *mclk = clk_get(NULL, "MAIN_CLK");
-
- if (cpu)
- return 0;
- return clk_get_rate(mclk)/1000;
-}
-
-static int ucv2_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int cur = ucv2_getspeed(0);
- struct cpufreq_freqs freqs;
- struct clk *mclk = clk_get(NULL, "MAIN_CLK");
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- if (!clk_set_rate(mclk, target_freq * 1000)) {
- freqs.old = cur;
- freqs.new = target_freq;
- freqs.cpu = 0;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
- return 0;
-}
-
-static int __init ucv2_cpu_init(struct cpufreq_policy *policy)
-{
- if (policy->cpu != 0)
- return -EINVAL;
- policy->cur = ucv2_getspeed(0);
- policy->min = policy->cpuinfo.min_freq = 250000;
- policy->max = policy->cpuinfo.max_freq = 1000000;
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- return 0;
-}
-
-static struct cpufreq_driver ucv2_driver = {
- .flags = CPUFREQ_STICKY,
- .verify = ucv2_verify_speed,
- .target = ucv2_target,
- .get = ucv2_getspeed,
- .init = ucv2_cpu_init,
- .name = "UniCore-II",
-};
-
-static int __init ucv2_cpufreq_init(void)
-{
- return cpufreq_register_driver(&ucv2_driver);
-}
-
-arch_initcall(ucv2_cpufreq_init);
diff --git a/arch/unicore32/kernel/early_printk.c b/arch/unicore32/kernel/early_printk.c
index 3922255f1fa..f2f6323c8d6 100644
--- a/arch/unicore32/kernel/early_printk.c
+++ b/arch/unicore32/kernel/early_printk.c
@@ -33,23 +33,13 @@ static struct console early_ocd_console = {
.index = -1,
};
-/* Direct interface for emergencies */
-static struct console *early_console = &early_ocd_console;
-
-static int __initdata keep_early;
-
static int __init setup_early_printk(char *buf)
{
- if (!buf)
+ if (!buf || early_console)
return 0;
+ early_console = &early_ocd_console;
if (strstr(buf, "keep"))
- keep_early = 1;
-
- if (!strncmp(buf, "ocd", 3))
- early_console = &early_ocd_console;
-
- if (keep_early)
early_console->flags &= ~CON_BOOT;
else
early_console->flags |= CON_BOOT;
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index 581630d9144..bcdedd80890 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -674,11 +674,6 @@ ENTRY(sys_rt_sigreturn)
b __sys_rt_sigreturn
ENDPROC(sys_rt_sigreturn)
-ENTRY(sys_sigaltstack)
- ldw r2, [sp+], #S_OFF + S_SP
- b do_sigaltstack
-ENDPROC(sys_sigaltstack)
-
__INIT
/*
diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
index d285d71cbe3..0323528a80f 100644
--- a/arch/unicore32/kernel/ksyms.c
+++ b/arch/unicore32/kernel/ksyms.c
@@ -23,41 +23,15 @@
#include "ksyms.h"
+EXPORT_SYMBOL(find_first_bit);
+EXPORT_SYMBOL(find_first_zero_bit);
EXPORT_SYMBOL(find_next_zero_bit);
EXPORT_SYMBOL(find_next_bit);
-EXPORT_SYMBOL(__backtrace);
-
/* platform dependent support */
EXPORT_SYMBOL(__udelay);
EXPORT_SYMBOL(__const_udelay);
- /* networking */
-EXPORT_SYMBOL(csum_partial);
-EXPORT_SYMBOL(csum_partial_copy_from_user);
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-EXPORT_SYMBOL(__csum_ipv6_magic);
-
- /* io */
-#ifndef __raw_readsb
-EXPORT_SYMBOL(__raw_readsb);
-#endif
-#ifndef __raw_readsw
-EXPORT_SYMBOL(__raw_readsw);
-#endif
-#ifndef __raw_readsl
-EXPORT_SYMBOL(__raw_readsl);
-#endif
-#ifndef __raw_writesb
-EXPORT_SYMBOL(__raw_writesb);
-#endif
-#ifndef __raw_writesw
-EXPORT_SYMBOL(__raw_writesw);
-#endif
-#ifndef __raw_writesl
-EXPORT_SYMBOL(__raw_writesl);
-#endif
-
/* string / mem functions */
EXPORT_SYMBOL(strchr);
EXPORT_SYMBOL(strrchr);
@@ -76,23 +50,12 @@ EXPORT_SYMBOL(__copy_from_user);
EXPORT_SYMBOL(__copy_to_user);
EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(__get_user_1);
-EXPORT_SYMBOL(__get_user_2);
-EXPORT_SYMBOL(__get_user_4);
-
-EXPORT_SYMBOL(__put_user_1);
-EXPORT_SYMBOL(__put_user_2);
-EXPORT_SYMBOL(__put_user_4);
-EXPORT_SYMBOL(__put_user_8);
-
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__divsi3);
EXPORT_SYMBOL(__lshrdi3);
EXPORT_SYMBOL(__modsi3);
-EXPORT_SYMBOL(__muldi3);
EXPORT_SYMBOL(__ucmpdi2);
EXPORT_SYMBOL(__udivsi3);
EXPORT_SYMBOL(__umodsi3);
-EXPORT_SYMBOL(__bswapsi2);
diff --git a/arch/unicore32/kernel/ksyms.h b/arch/unicore32/kernel/ksyms.h
index 185cdc712d0..31472ad9467 100644
--- a/arch/unicore32/kernel/ksyms.h
+++ b/arch/unicore32/kernel/ksyms.h
@@ -8,8 +8,6 @@ extern void __ashrdi3(void);
extern void __divsi3(void);
extern void __lshrdi3(void);
extern void __modsi3(void);
-extern void __muldi3(void);
extern void __ucmpdi2(void);
extern void __udivsi3(void);
extern void __umodsi3(void);
-extern void __bswapsi2(void);
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
index 16bd1495b93..dc41f6dfedb 100644
--- a/arch/unicore32/kernel/module.c
+++ b/arch/unicore32/kernel/module.c
@@ -24,14 +24,9 @@
void *module_alloc(unsigned long size)
{
- struct vm_struct *area;
-
- size = PAGE_ALIGN(size);
- area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
- if (!area)
- return NULL;
-
- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
+ return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+ GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+ __builtin_return_address(0));
}
int
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index ef69c0c8282..374a055a8e6 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -277,11 +277,6 @@ static int __init pci_common_init(void)
pci_bus_assign_resources(puv3_bus);
}
- /*
- * Tell drivers about devices found.
- */
- pci_bus_add_devices(puv3_bus);
-
return 0;
}
subsys_initcall(pci_common_init);
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index 62bad9fed03..b008e996146 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -45,42 +45,12 @@ static const char * const processor_modes[] = {
"UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR"
};
-/*
- * The idle thread, has rather strange semantics for calling pm_idle,
- * but this is what x86 does and we need to do the same, so that
- * things like cpuidle get called in the same way.
- */
-void cpu_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
- while (!need_resched()) {
- local_irq_disable();
- stop_critical_timings();
- cpu_do_idle();
- local_irq_enable();
- start_critical_timings();
- }
- rcu_idle_exit();
- tick_nohz_idle_exit();
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
-}
-
-static char reboot_mode = 'h';
-
-int __init reboot_setup(char *str)
+void arch_cpu_idle(void)
{
- reboot_mode = str[0];
- return 1;
+ cpu_do_idle();
+ local_irq_enable();
}
-__setup("reboot=", reboot_setup);
-
void machine_halt(void)
{
gpio_set_value(GPO_SOFT_OFF, 0);
@@ -90,6 +60,7 @@ void machine_halt(void)
* Function pointers to optional machine specific functions
*/
void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
void machine_power_off(void)
{
@@ -108,7 +79,7 @@ void machine_restart(char *cmd)
* we may need it to insert some 1:1 mappings so that
* soft boot works.
*/
- setup_mm_for_reboot(reboot_mode);
+ setup_mm_for_reboot();
/* Clean and invalidate caches */
flush_cache_all();
@@ -122,7 +93,7 @@ void machine_restart(char *cmd)
/*
* Now handle reboot code.
*/
- if (reboot_mode == 's') {
+ if (reboot_mode == REBOOT_SOFT) {
/* Jump into ROM at address 0xffff0000 */
cpu_reset(VECTORS_BASE);
} else {
@@ -164,11 +135,7 @@ void __show_regs(struct pt_regs *regs)
unsigned long flags;
char buf[64];
- printk(KERN_DEFAULT "CPU: %d %s (%s %.*s)\n",
- raw_smp_processor_id(), print_tainted(),
- init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
+ show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->UCreg_lr);
printk(KERN_DEFAULT "pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c
index 181108b8ecc..0c6618e7189 100644
--- a/arch/unicore32/kernel/puv3-nb0916.c
+++ b/arch/unicore32/kernel/puv3-nb0916.c
@@ -54,6 +54,7 @@ static struct platform_pwm_backlight_data nb0916_backlight_data = {
.max_brightness = 100,
.dft_brightness = 100,
.pwm_period_ns = 70 * 1024,
+ .enable_gpio = -1,
};
static struct gpio_keys_button nb0916_gpio_keys[] = {
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 87adbf5ebfe..3fa317f9612 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -53,6 +53,10 @@ struct stack {
static struct stack stacks[NR_CPUS];
+#ifdef CONFIG_VGA_CONSOLE
+struct screen_info screen_info;
+#endif
+
char elf_platform[ELF_PLATFORM_SIZE];
EXPORT_SYMBOL(elf_platform);
diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h
index 30f749da8f7..f5c51b85ad2 100644
--- a/arch/unicore32/kernel/setup.h
+++ b/arch/unicore32/kernel/setup.h
@@ -22,7 +22,7 @@ extern void puv3_ps2_init(void);
extern void pci_puv3_preinit(void);
extern void __init puv3_init_gpio(void);
-extern void setup_mm_for_reboot(char mode);
+extern void setup_mm_for_reboot(void);
extern char __stubs_start[], __stubs_end[];
extern char __vectors_start[], __vectors_end[];
diff --git a/arch/unicore32/kernel/signal.c b/arch/unicore32/kernel/signal.c
index b8b2ffd774d..6905f0ebdc7 100644
--- a/arch/unicore32/kernel/signal.c
+++ b/arch/unicore32/kernel/signal.c
@@ -123,8 +123,7 @@ asmlinkage int __sys_rt_sigreturn(struct pt_regs *regs)
if (restore_sigframe(regs, &frame->sig))
goto badframe;
- if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->UCreg_sp)
- == -EFAULT)
+ if (restore_altstack(&frame->sig.uc.uc_stack))
goto badframe;
return regs->UCreg_00;
@@ -265,7 +264,6 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
{
struct rt_sigframe __user *frame =
get_sigframe(ka, regs, sizeof(*frame));
- stack_t stack;
int err = 0;
if (!frame)
@@ -275,13 +273,7 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(0, &frame->sig.uc.uc_flags);
err |= __put_user(NULL, &frame->sig.uc.uc_link);
-
- memset(&stack, 0, sizeof(stack));
- stack.ss_sp = (void __user *)current->sas_ss_sp;
- stack.ss_flags = sas_ss_flags(regs->UCreg_sp);
- stack.ss_size = current->sas_ss_size;
- err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
-
+ err |= __save_altstack(&frame->sig.uc.uc_stack, regs->UCreg_sp);
err |= setup_sigframe(&frame->sig, regs, set);
if (err == 0)
err |= setup_return(regs, ka, frame->sig.retcode, frame, usig);
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c
index cfe79c9529b..f9e86253931 100644
--- a/arch/unicore32/kernel/sys.c
+++ b/arch/unicore32/kernel/sys.c
@@ -28,19 +28,11 @@
#include <asm/syscalls.h>
#include <asm/cacheflush.h>
-/* Note: used by the compat code even in 64-bit Linux. */
-SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
- unsigned long, prot, unsigned long, flags,
- unsigned long, fd, unsigned long, off_4k)
-{
- return sys_mmap_pgoff(addr, len, prot, flags, fd,
- off_4k);
-}
-
/* Provide the actual syscall number to call mapping. */
#undef __SYSCALL
#define __SYSCALL(nr, call) [nr] = (call),
+#define sys_mmap2 sys_mmap_pgoff
/* Note that we don't include <linux/unistd.h> but <asm/unistd.h> */
void *sys_call_table[__NR_syscalls] = {
[0 ... __NR_syscalls-1] = sys_ni_syscall,
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 2054f0d4db1..c54e32410ea 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
c_backtrace(fp, mode);
}
-void dump_stack(void)
-{
- dump_backtrace(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);
@@ -231,7 +225,7 @@ void die(const char *str, struct pt_regs *regs, int err)
ret = __die(str, err, thread, regs);
bust_spinlocks(0);
- add_taint(TAINT_DIE);
+ add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
spin_unlock_irq(&die_lock);
oops_exit();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 15:37:58 +0000