add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/ia64/kernel/process.c
..
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@@ -40,7 +40,6 @@
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 #include <asm/elf.h>
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 #include <asm/irq.h>
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 #include <asm/kexec.h>
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-#include <asm/pgalloc.h>
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 #include <asm/processor.h>
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 #include <asm/sal.h>
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 #include <asm/switch_to.h>
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@@ -48,12 +47,9 @@
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 #include <linux/uaccess.h>
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 #include <asm/unwind.h>
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 #include <asm/user.h>
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+#include <asm/xtp.h>
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51
 
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 #include "entry.h"
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-
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-#ifdef CONFIG_PERFMON
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-# include <asm/perfmon.h>
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-#endif
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53
 
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 #include "sigframe.h"
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55
 
..
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@@ -64,12 +60,13 @@
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 void (*pm_power_off) (void);
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 EXPORT_SYMBOL(pm_power_off);
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62
 
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-void
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+static void
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 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
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 {
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 	unsigned long ip, sp, bsp;
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+	const char *loglvl = arg;
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68
 
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-	printk("\nCall Trace:\n");
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+	printk("%s\nCall Trace:\n", loglvl);
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 	do {
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 		unw_get_ip(info, &ip);
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 		if (ip == 0)
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@@ -77,22 +74,22 @@
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74
 
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 		unw_get_sp(info, &sp);
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 		unw_get_bsp(info, &bsp);
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-		printk(" [<%016lx>] %pS\n"
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+		printk("%s [<%016lx>] %pS\n"
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 			 "                                sp=%016lx bsp=%016lx\n",
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-			 ip, (void *)ip, sp, bsp);
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+			 loglvl, ip, (void *)ip, sp, bsp);
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 	} while (unw_unwind(info) >= 0);
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 }
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82
 
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 void
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-show_stack (struct task_struct *task, unsigned long *sp)
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+show_stack (struct task_struct *task, unsigned long *sp, const char *loglvl)
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 {
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 	if (!task)
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-		unw_init_running(ia64_do_show_stack, NULL);
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+		unw_init_running(ia64_do_show_stack, (void *)loglvl);
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 	else {
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 		struct unw_frame_info info;
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 		unw_init_from_blocked_task(&info, task);
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-		ia64_do_show_stack(&info, NULL);
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+		ia64_do_show_stack(&info, (void *)loglvl);
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 	}
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 }
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95
 
..
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@@ -150,7 +147,7 @@
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 			       ((i == sof - 1) || (i % 3) == 2) ? "\n" : " ");
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 		}
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 	} else
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-		show_stack(NULL, NULL);
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+		show_stack(NULL, NULL, KERN_DEFAULT);
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 }
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 /* local support for deprecated console_print */
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@@ -173,22 +170,14 @@
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 		return;
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 	}
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172
 
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-#ifdef CONFIG_PERFMON
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-	if (current->thread.pfm_needs_checking)
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-		/*
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-		 * Note: pfm_handle_work() allow us to call it with interrupts
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-		 * disabled, and may enable interrupts within the function.
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-		 */
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-		pfm_handle_work();
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-#endif
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-
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 	/* deal with pending signal delivery */
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-	if (test_thread_flag(TIF_SIGPENDING)) {
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+	if (test_thread_flag(TIF_SIGPENDING) ||
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+	    test_thread_flag(TIF_NOTIFY_SIGNAL)) {
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 		local_irq_enable();	/* force interrupt enable */
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 		ia64_do_signal(scr, in_syscall);
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 	}
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-	if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
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+	if (test_thread_flag(TIF_NOTIFY_RESUME)) {
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 		local_irq_enable();	/* force interrupt enable */
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 		tracehook_notify_resume(&scr->pt);
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 	}
..
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@@ -251,7 +240,7 @@
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 	if (mark_idle)
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 		(*mark_idle)(1);
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242
 
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-	safe_halt();
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+	raw_safe_halt();
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 	if (mark_idle)
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 		(*mark_idle)(0);
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@@ -263,41 +252,15 @@
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 void
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 ia64_save_extra (struct task_struct *task)
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 {
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-#ifdef CONFIG_PERFMON
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-	unsigned long info;
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-#endif
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-
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 	if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0)
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 		ia64_save_debug_regs(&task->thread.dbr[0]);
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-
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-#ifdef CONFIG_PERFMON
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-	if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
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-		pfm_save_regs(task);
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-
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-	info = __this_cpu_read(pfm_syst_info);
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-	if (info & PFM_CPUINFO_SYST_WIDE)
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-		pfm_syst_wide_update_task(task, info, 0);
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-#endif
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 }
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258
 
283
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 void
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 ia64_load_extra (struct task_struct *task)
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 {
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-#ifdef CONFIG_PERFMON
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-	unsigned long info;
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-#endif
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-
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 	if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0)
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 		ia64_load_debug_regs(&task->thread.dbr[0]);
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-
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-#ifdef CONFIG_PERFMON
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-	if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
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-		pfm_load_regs(task);
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-
297
-	info = __this_cpu_read(pfm_syst_info);
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-	if (info & PFM_CPUINFO_SYST_WIDE) 
299
-		pfm_syst_wide_update_task(task, info, 1);
300
-#endif
301
264
 }
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265
 
303
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 /*
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@@ -309,7 +272,7 @@
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  *
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  *	<clone syscall>	        <some kernel call frames>
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  *	sys_clone		   :
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- *	do_fork			do_fork
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+ *	kernel_clone		kernel_clone
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  *	copy_thread		copy_thread
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  *
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  * This means that the stack layout is as follows:
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@@ -332,9 +295,8 @@
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  * so there is nothing to worry about.
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  */
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 int
335
-copy_thread(unsigned long clone_flags,
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-	     unsigned long user_stack_base, unsigned long user_stack_size,
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-	     struct task_struct *p)
298
+copy_thread(unsigned long clone_flags, unsigned long user_stack_base,
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+	    unsigned long user_stack_size, struct task_struct *p, unsigned long tls)
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 {
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 	extern char ia64_ret_from_clone;
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 	struct switch_stack *child_stack, *stack;
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@@ -376,7 +338,7 @@
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338
 
377
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 	ia64_drop_fpu(p);	/* don't pick up stale state from a CPU's fph */
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340
 
379
-	if (unlikely(p->flags & PF_KTHREAD)) {
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+	if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
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342
 		if (unlikely(!user_stack_base)) {
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 			/* fork_idle() called us */
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 			return 0;
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@@ -415,7 +377,7 @@
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 	rbs_size = stack->ar_bspstore - rbs;
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 	memcpy((void *) child_rbs, (void *) rbs, rbs_size);
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 	if (clone_flags & CLONE_SETTLS)
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-		child_ptregs->r13 = regs->r16;	/* see sys_clone2() in entry.S */
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+		child_ptregs->r13 = tls;
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 	if (user_stack_base) {
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 		child_ptregs->r12 = user_stack_base + user_stack_size - 16;
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 		child_ptregs->ar_bspstore = user_stack_base;
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@@ -432,19 +394,32 @@
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 	 */
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 	child_ptregs->cr_ipsr = ((child_ptregs->cr_ipsr | IA64_PSR_BITS_TO_SET)
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 				 & ~(IA64_PSR_BITS_TO_CLEAR | IA64_PSR_PP | IA64_PSR_UP));
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-
436
-#ifdef CONFIG_PERFMON
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-	if (current->thread.pfm_context)
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-		pfm_inherit(p, child_ptregs);
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-#endif
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397
 	return retval;
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+}
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+
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+asmlinkage long ia64_clone(unsigned long clone_flags, unsigned long stack_start,
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+			   unsigned long stack_size, unsigned long parent_tidptr,
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+			   unsigned long child_tidptr, unsigned long tls)
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+{
404
+	struct kernel_clone_args args = {
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+		.flags		= (lower_32_bits(clone_flags) & ~CSIGNAL),
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+		.pidfd		= (int __user *)parent_tidptr,
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+		.child_tid	= (int __user *)child_tidptr,
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+		.parent_tid	= (int __user *)parent_tidptr,
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+		.exit_signal	= (lower_32_bits(clone_flags) & CSIGNAL),
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+		.stack		= stack_start,
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+		.stack_size	= stack_size,
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+		.tls		= tls,
413
+	};
414
+
415
+	return kernel_clone(&args);
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416
 }
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417
 
443
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 static void
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419
 do_copy_task_regs (struct task_struct *task, struct unw_frame_info *info, void *arg)
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420
 {
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 	unsigned long mask, sp, nat_bits = 0, ar_rnat, urbs_end, cfm;
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-	unsigned long uninitialized_var(ip);	/* GCC be quiet */
422
+	unsigned long ip;
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 	elf_greg_t *dst = arg;
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 	struct pt_regs *pt;
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 	char nat;
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@@ -514,49 +489,15 @@
514
489
 }
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490
 
516
491
 void
517
-do_dump_task_fpu (struct task_struct *task, struct unw_frame_info *info, void *arg)
518
-{
519
-	elf_fpreg_t *dst = arg;
520
-	int i;
521
-
522
-	memset(dst, 0, sizeof(elf_fpregset_t));	/* don't leak any "random" bits */
523
-
524
-	if (unw_unwind_to_user(info) < 0)
525
-		return;
526
-
527
-	/* f0 is 0.0, f1 is 1.0 */
528
-
529
-	for (i = 2; i < 32; ++i)
530
-		unw_get_fr(info, i, dst + i);
531
-
532
-	ia64_flush_fph(task);
533
-	if ((task->thread.flags & IA64_THREAD_FPH_VALID) != 0)
534
-		memcpy(dst + 32, task->thread.fph, 96*16);
535
-}
536
-
537
-void
538
492
 do_copy_regs (struct unw_frame_info *info, void *arg)
539
493
 {
540
494
 	do_copy_task_regs(current, info, arg);
541
495
 }
542
496
 
543
497
 void
544
-do_dump_fpu (struct unw_frame_info *info, void *arg)
545
-{
546
-	do_dump_task_fpu(current, info, arg);
547
-}
548
-
549
-void
550
498
 ia64_elf_core_copy_regs (struct pt_regs *pt, elf_gregset_t dst)
551
499
 {
552
500
 	unw_init_running(do_copy_regs, dst);
553
-}
554
-
555
-int
556
-dump_fpu (struct pt_regs *pt, elf_fpregset_t dst)
557
-{
558
-	unw_init_running(do_dump_fpu, dst);
559
-	return 1;	/* f0-f31 are always valid so we always return 1 */
560
501
 }
561
502
 
562
503
 /*
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@@ -579,15 +520,6 @@
579
520
 {
580
521
 
581
522
 	ia64_drop_fpu(tsk);
582
-#ifdef CONFIG_PERFMON
583
-       /* if needed, stop monitoring and flush state to perfmon context */
584
-	if (tsk->thread.pfm_context)
585
-		pfm_exit_thread(tsk);
586
-
587
-	/* free debug register resources */
588
-	if (tsk->thread.flags & IA64_THREAD_DBG_VALID)
589
-		pfm_release_debug_registers(tsk);
590
-#endif
591
523
 }
592
524
 
593
525
 unsigned long
..
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@@ -646,14 +578,8 @@
646
578
 
647
579
 void machine_shutdown(void)
648
580
 {
649
-#ifdef CONFIG_HOTPLUG_CPU
650
-	int cpu;
581
+	smp_shutdown_nonboot_cpus(reboot_cpu);
651
582
 
652
-	for_each_online_cpu(cpu) {
653
-		if (cpu != smp_processor_id())
654
-			cpu_down(cpu);
655
-	}
656
-#endif
657
583
 #ifdef CONFIG_KEXEC
658
584
 	kexec_disable_iosapic();
659
585
 #endif
..
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@@ -681,3 +607,4 @@
681
607
 	machine_halt();
682
608
 }
683
609
 
610
+EXPORT_SYMBOL(ia64_delay_loop);