[PATCH][2.5][3/15] smp_call_function/_on_cpu - i386

From: Zwane Mwaikambo (zwane@holomorphy.com)
Date: Sun Feb 09 2003 - 07:05:43 EST


 kernel/cpu/mcheck/non-fatal.c | 2 -
 kernel/cpu/mtrr/main.c | 2 -
 kernel/cpuid.c | 2 -
 kernel/io_apic.c | 4 +-
 kernel/ldt.c | 2 -
 kernel/microcode.c | 2 -
 kernel/msr.c | 4 +-
 kernel/reboot.c | 2 -
 kernel/smp.c | 64 ++++++++++++++++++++++++++++++++++++++----
 kernel/sysenter.c | 2 -
 mach-voyager/voyager_smp.c | 8 +----
 mm/pageattr.c | 2 -
 oprofile/nmi_int.c | 8 ++---
 13 files changed, 78 insertions(+), 26 deletions(-)

Index: linux-2.5.59-bk/arch/i386/kernel/cpuid.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/cpuid.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 cpuid.c
--- linux-2.5.59-bk/arch/i386/kernel/cpuid.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/cpuid.c 9 Feb 2003 09:23:29 -0000
@@ -71,7 +71,7 @@
     cmd.reg = reg;
     cmd.data = data;
     
- smp_call_function(cpuid_smp_cpuid, &cmd, 1, 1);
+ smp_call_function(cpuid_smp_cpuid, &cmd, 1);
   }
 }
 #else /* ! CONFIG_SMP */
Index: linux-2.5.59-bk/arch/i386/kernel/io_apic.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/io_apic.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 io_apic.c
--- linux-2.5.59-bk/arch/i386/kernel/io_apic.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/io_apic.c 9 Feb 2003 09:23:29 -0000
@@ -1049,7 +1049,7 @@
 
 void print_all_local_APICs (void)
 {
- smp_call_function(print_local_APIC, NULL, 1, 1);
+ smp_call_function(print_local_APIC, NULL, 1);
         print_local_APIC(NULL);
 }
 
@@ -1524,7 +1524,7 @@
          */
         printk(KERN_INFO "activating NMI Watchdog ...");
 
- smp_call_function(enable_NMI_through_LVT0, NULL, 1, 1);
+ smp_call_function(enable_NMI_through_LVT0, NULL, 1);
         enable_NMI_through_LVT0(NULL);
 
         printk(" done.\n");
Index: linux-2.5.59-bk/arch/i386/kernel/ldt.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/ldt.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 ldt.c
--- linux-2.5.59-bk/arch/i386/kernel/ldt.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/ldt.c 9 Feb 2003 09:23:29 -0000
@@ -59,7 +59,7 @@
 #ifdef CONFIG_SMP
                 preempt_disable();
                 if (current->mm->cpu_vm_mask != (1 << smp_processor_id()))
- smp_call_function(flush_ldt, 0, 1, 1);
+ smp_call_function(flush_ldt, 0, 1);
                 preempt_enable();
 #endif
         }
Index: linux-2.5.59-bk/arch/i386/kernel/microcode.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/microcode.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 microcode.c
--- linux-2.5.59-bk/arch/i386/kernel/microcode.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/microcode.c 9 Feb 2003 09:23:29 -0000
@@ -183,7 +183,7 @@
         int i, error = 0, err;
         struct microcode *m;
 
- if (smp_call_function(do_update_one, NULL, 1, 1) != 0) {
+ if (smp_call_function(do_update_one, NULL, 1) != 0) {
                 printk(KERN_ERR "microcode: IPI timeout, giving up\n");
                 return -EIO;
         }
Index: linux-2.5.59-bk/arch/i386/kernel/msr.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/msr.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 msr.c
--- linux-2.5.59-bk/arch/i386/kernel/msr.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/msr.c 9 Feb 2003 09:23:29 -0000
@@ -124,7 +124,7 @@
     cmd.data[0] = eax;
     cmd.data[1] = edx;
     
- smp_call_function(msr_smp_wrmsr, &cmd, 1, 1);
+ smp_call_function(msr_smp_wrmsr, &cmd, 1);
     return cmd.err;
   }
 }
@@ -139,7 +139,7 @@
     cmd.cpu = cpu;
     cmd.reg = reg;
 
- smp_call_function(msr_smp_rdmsr, &cmd, 1, 1);
+ smp_call_function(msr_smp_rdmsr, &cmd, 1);
     
     *eax = cmd.data[0];
     *edx = cmd.data[1];
Index: linux-2.5.59-bk/arch/i386/kernel/reboot.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/reboot.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 reboot.c
--- linux-2.5.59-bk/arch/i386/kernel/reboot.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/reboot.c 9 Feb 2003 09:23:29 -0000
@@ -243,7 +243,7 @@
                    cleared reboot_smp, and do the reboot if it is the
                    correct CPU, otherwise it halts. */
                 if (reboot_cpu != cpuid)
- smp_call_function((void *)machine_restart , NULL, 1, 0);
+ smp_call_function((void *)machine_restart , NULL, 0);
         }
 
         /* if reboot_cpu is still -1, then we want a tradional reboot,
Index: linux-2.5.59-bk/arch/i386/kernel/smp.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/smp.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 smp.c
--- linux-2.5.59-bk/arch/i386/kernel/smp.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/smp.c 9 Feb 2003 09:23:29 -0000
@@ -452,7 +452,7 @@
 
 void flush_tlb_all(void)
 {
- smp_call_function (flush_tlb_all_ipi,0,1,1);
+ smp_call_function (flush_tlb_all_ipi,0,1);
 
         do_flush_tlb_all_local();
 }
@@ -499,13 +499,11 @@
  * in the system.
  */
 
-int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
- int wait)
+int smp_call_function (void (*func) (void *info), void *info, int wait)
 /*
  * [SUMMARY] Run a function on all other CPUs.
  * <func> The function to run. This must be fast and non-blocking.
  * <info> An arbitrary pointer to pass to the function.
- * <nonatomic> currently unused.
  * <wait> If true, wait (atomically) until function has completed on other CPUs.
  * [RETURNS] 0 on success, else a negative status code. Does not return until
  * remote CPUs are nearly ready to execute <<func>> or are or have executed.
@@ -545,6 +543,62 @@
         return 0;
 }
 
+/*
+ * smp_call_function_on_cpu - Runs func on all processors in the mask
+ *
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ * @mask The bitmask of CPUs to call the function
+ *
+ * Returns 0 on success, else a negative status code. Does not return until
+ * remote CPUs are nearly ready to execute func or have executed it.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+
+int smp_call_function_on_cpu (void (*func) (void *info), void *info,
+ int wait, unsigned long mask)
+{
+ struct call_data_struct data;
+ int num_cpus = hweight32(mask), cpu;
+
+ if (num_cpus == 0)
+ return -EINVAL;
+
+ cpu = get_cpu();
+ if ((1UL << cpu) & mask) {
+ put_cpu_no_resched();
+ return -EINVAL;
+ }
+
+ data.func = func;
+ data.info = info;
+ atomic_set(&data.started, 0);
+ data.wait = wait;
+ if (wait)
+ atomic_set(&data.finished, 0);
+
+ spin_lock(&call_lock);
+ call_data = &data;
+ wmb();
+
+ /* Send a message to the CPUs in the mask and wait for them to respond */
+ send_IPI_mask_sequence(mask, CALL_FUNCTION_VECTOR);
+
+ /* Wait for response */
+ while (atomic_read(&data.started) != num_cpus)
+ cpu_relax();
+
+ if (wait)
+ while (atomic_read(&data.finished) != num_cpus)
+ cpu_relax();
+ spin_unlock(&call_lock);
+ put_cpu_no_resched();
+ return 0;
+}
+
 static void stop_this_cpu (void * dummy)
 {
         /*
@@ -564,7 +618,7 @@
 
 void smp_send_stop(void)
 {
- smp_call_function(stop_this_cpu, NULL, 1, 0);
+ smp_call_function(stop_this_cpu, NULL, 0);
 
         local_irq_disable();
         disable_local_APIC();
Index: linux-2.5.59-bk/arch/i386/kernel/sysenter.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/sysenter.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 sysenter.c
--- linux-2.5.59-bk/arch/i386/kernel/sysenter.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/sysenter.c 9 Feb 2003 09:23:29 -0000
@@ -96,7 +96,7 @@
 
         memcpy((void *) page, sysent, sizeof(sysent));
         enable_sep_cpu(NULL);
- smp_call_function(enable_sep_cpu, NULL, 1, 1);
+ smp_call_function(enable_sep_cpu, NULL, 1);
         return 0;
 }
 
Index: linux-2.5.59-bk/arch/i386/kernel/cpu/mcheck/non-fatal.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/cpu/mcheck/non-fatal.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 non-fatal.c
--- linux-2.5.59-bk/arch/i386/kernel/cpu/mcheck/non-fatal.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/cpu/mcheck/non-fatal.c 9 Feb 2003 09:23:29 -0000
@@ -49,7 +49,7 @@
 
 static void do_mce_timer(void *data)
 {
- smp_call_function (mce_checkregs, NULL, 1, 1);
+ smp_call_function (mce_checkregs, NULL, 1);
 }
 
 static DECLARE_WORK(mce_work, do_mce_timer, NULL);
Index: linux-2.5.59-bk/arch/i386/kernel/cpu/mtrr/main.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/kernel/cpu/mtrr/main.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 main.c
--- linux-2.5.59-bk/arch/i386/kernel/cpu/mtrr/main.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/kernel/cpu/mtrr/main.c 9 Feb 2003 09:23:29 -0000
@@ -224,7 +224,7 @@
         atomic_set(&data.gate,0);
 
         /* Start the ball rolling on other CPUs */
- if (smp_call_function(ipi_handler, &data, 1, 0) != 0)
+ if (smp_call_function(ipi_handler, &data, 0) != 0)
                 panic("mtrr: timed out waiting for other CPUs\n");
 
         local_irq_save(flags);
Index: linux-2.5.59-bk/arch/i386/mach-voyager/voyager_smp.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/mach-voyager/voyager_smp.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 voyager_smp.c
--- linux-2.5.59-bk/arch/i386/mach-voyager/voyager_smp.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/mach-voyager/voyager_smp.c 9 Feb 2003 09:23:29 -0000
@@ -1091,14 +1091,12 @@
 /* Call this function on all CPUs using the function_interrupt above
     <func> The function to run. This must be fast and non-blocking.
     <info> An arbitrary pointer to pass to the function.
- <retry> If true, keep retrying until ready.
     <wait> If true, wait until function has completed on other CPUs.
     [RETURNS] 0 on success, else a negative status code. Does not return until
     remote CPUs are nearly ready to execute <<func>> or are or have executed.
 */
 int
-smp_call_function (void (*func) (void *info), void *info, int retry,
- int wait)
+smp_call_function (void (*func) (void *info), void *info, int wait)
 {
         struct call_data_struct data;
         __u32 mask = cpu_online_map;
@@ -1233,7 +1231,7 @@
 void
 flush_tlb_all(void)
 {
- smp_call_function (flush_tlb_all_function, 0, 1, 1);
+ smp_call_function (flush_tlb_all_function, 0, 1);
 
         do_flush_tlb_all_local();
 }
@@ -1276,7 +1274,7 @@
 void
 smp_send_stop(void)
 {
- smp_call_function(smp_stop_cpu_function, NULL, 1, 1);
+ smp_call_function(smp_stop_cpu_function, NULL, 1);
 }
 
 /* this function is triggered in time.c when a clock tick fires
Index: linux-2.5.59-bk/arch/i386/mm/pageattr.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/mm/pageattr.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 pageattr.c
--- linux-2.5.59-bk/arch/i386/mm/pageattr.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/mm/pageattr.c 9 Feb 2003 09:23:29 -0000
@@ -132,7 +132,7 @@
 static inline void flush_map(void)
 {
 #ifdef CONFIG_SMP
- smp_call_function(flush_kernel_map, NULL, 1, 1);
+ smp_call_function(flush_kernel_map, NULL, 1);
 #endif
         flush_kernel_map(NULL);
 }
Index: linux-2.5.59-bk/arch/i386/oprofile/nmi_int.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59-bk/arch/i386/oprofile/nmi_int.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 nmi_int.c
--- linux-2.5.59-bk/arch/i386/oprofile/nmi_int.c 9 Feb 2003 09:08:22 -0000 1.1.1.1
+++ linux-2.5.59-bk/arch/i386/oprofile/nmi_int.c 9 Feb 2003 09:23:29 -0000
@@ -95,7 +95,7 @@
          * without actually triggering any NMIs as this will
          * break the core code horrifically.
          */
- smp_call_function(nmi_cpu_setup, NULL, 0, 1);
+ smp_call_function(nmi_cpu_setup, NULL, 1);
         nmi_cpu_setup(0);
         set_nmi_callback(nmi_callback);
         oprofile_pmdev = set_nmi_pm_callback(oprofile_pm_callback);
@@ -148,7 +148,7 @@
 {
         unset_nmi_pm_callback(oprofile_pmdev);
         unset_nmi_callback();
- smp_call_function(nmi_cpu_shutdown, NULL, 0, 1);
+ smp_call_function(nmi_cpu_shutdown, NULL, 1);
         nmi_cpu_shutdown(0);
 }
 
@@ -162,7 +162,7 @@
 
 static int nmi_start(void)
 {
- smp_call_function(nmi_cpu_start, NULL, 0, 1);
+ smp_call_function(nmi_cpu_start, NULL, 1);
         nmi_cpu_start(0);
         return 0;
 }
@@ -177,7 +177,7 @@
  
 static void nmi_stop(void)
 {
- smp_call_function(nmi_cpu_stop, NULL, 0, 1);
+ smp_call_function(nmi_cpu_stop, NULL, 1);
         nmi_cpu_stop(0);
 }
 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Feb 15 2003 - 22:00:22 EST