[MIPS] SMP: Call platform methods via ops structure.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 198 insertions, 125 deletions

diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index 436ba78359ab..183c460b9ca1 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -23,6 +23,7 @@
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
+#include <asm/fw/cfe/cfe_api.h>
 #include <asm/sibyte/sb1250.h>
 #include <asm/sibyte/bcm1480_regs.h>
 #include <asm/sibyte/bcm1480_int.h>
@@ -67,28 +68,114 @@ void __cpuinit bcm1480_smp_init(void)
         change_c0_status(ST0_IM, imask);
 }
 
-void __cpuinit bcm1480_smp_finish(void)
+/*
+ * These are routines for dealing with the sb1250 smp capabilities
+ * independent of board/firmware
+ */
+
+/*
+ * Simple enough; everything is set up, so just poke the appropriate mailbox
+ * register, and we should be set
+ */
+static void bcm1480_send_ipi_single(int cpu, unsigned int action)
+{
+        __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]);
+}
+
+static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+        unsigned int i;
+
+        for_each_cpu_mask(i, mask)
+                bcm1480_send_ipi_single(i, action);
+}
+
+/*
+ * Code to run on secondary just after probing the CPU
+ */
+static void __cpuinit bcm1480_init_secondary(void)
+{
+        extern void bcm1480_smp_init(void);
+
+        bcm1480_smp_init();
+}
+
+/*
+ * Do any tidying up before marking online and running the idle
+ * loop
+ */
+static void __cpuinit bcm1480_smp_finish(void)
 {
         extern void sb1480_clockevent_init(void);
 
         sb1480_clockevent_init();
         local_irq_enable();
+        bcm1480_smp_finish();
 }
 
 /*
- * These are routines for dealing with the sb1250 smp capabilities
- * independent of board/firmware
+ * Final cleanup after all secondaries booted
  */
+static void bcm1480_cpus_done(void)
+{
+}
 
 /*
- * Simple enough; everything is set up, so just poke the appropriate mailbox
- * register, and we should be set
+ * Setup the PC, SP, and GP of a secondary processor and start it
+ * running!
  */
-void core_send_ipi(int cpu, unsigned int action)
+static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle)
 {
-        __raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]);
+        int retval;
+
+        retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
+                               __KSTK_TOS(idle),
+                               (unsigned long)task_thread_info(idle), 0);
+        if (retval != 0)
+                printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
 }
 
+/*
+ * Use CFE to find out how many CPUs are available, setting up
+ * phys_cpu_present_map and the logical/physical mappings.
+ * XXXKW will the boot CPU ever not be physical 0?
+ *
+ * Common setup before any secondaries are started
+ */
+static void __init bcm1480_smp_setup(void)
+{
+        int i, num;
+
+        cpus_clear(phys_cpu_present_map);
+        cpu_set(0, phys_cpu_present_map);
+        __cpu_number_map[0] = 0;
+        __cpu_logical_map[0] = 0;
+
+        for (i = 1, num = 0; i < NR_CPUS; i++) {
+                if (cfe_cpu_stop(i) == 0) {
+                        cpu_set(i, phys_cpu_present_map);
+                        __cpu_number_map[i] = ++num;
+                        __cpu_logical_map[num] = i;
+                }
+        }
+        printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+static void __init bcm1480_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+struct plat_smp_ops bcm1480_smp_ops = {
+        .send_ipi_single        = bcm1480_send_ipi_single,
+        .send_ipi_mask          = bcm1480_send_ipi_mask,
+        .init_secondary         = bcm1480_init_secondary,
+        .smp_finish             = bcm1480_smp_finish,
+        .cpus_done              = bcm1480_cpus_done,
+        .boot_secondary         = bcm1480_boot_secondary,
+        .smp_setup              = bcm1480_smp_setup,
+        .prepare_cpus           = bcm1480_prepare_cpus,
+};
+
 void bcm1480_mailbox_interrupt(void)
 {
         int cpu = smp_processor_id();
diff --git a/arch/mips/sibyte/cfe/Makefile b/arch/mips/sibyte/cfe/Makefile
index a1214937b705..02b32e142adf 100644
--- a/arch/mips/sibyte/cfe/Makefile
+++ b/arch/mips/sibyte/cfe/Makefile
@@ -1,3 +1,2 @@
 lib-y                                   = setup.o
-lib-$(CONFIG_SMP)                       += smp.o
 lib-$(CONFIG_SIBYTE_CFE_CONSOLE)        += console.o
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index dbd6e6fdd3f9..50d7c05e15b8 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -28,6 +28,7 @@
 #include <asm/bootinfo.h>
 #include <asm/reboot.h>
 #include <asm/sibyte/board.h>
+#include <asm/smp-ops.h>
 
 #include <asm/fw/cfe/cfe_api.h>
 #include <asm/fw/cfe/cfe_error.h>
@@ -232,6 +233,9 @@ static int __init initrd_setup(char *str)
 
 #endif
 
+extern struct plat_smp_ops sb_smp_ops;
+extern struct plat_smp_ops bcm1480_smp_ops;
+
 /*
  * prom_init is called just after the cpu type is determined, from setup_arch()
  */
@@ -340,6 +344,13 @@ void __init prom_init(void)
         arcs_cmdline[CL_SIZE-1] = 0;
 
         prom_meminit();
+
+#if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250)
+        register_smp_ops(&sb_smp_ops);
+#endif
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+        register_smp_ops(&bcm1480_smp_ops);
+#endif
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
deleted file mode 100644
index 534a62912f21..000000000000
--- a/arch/mips/sibyte/cfe/smp.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <asm/processor.h>
-
-#include <asm/fw/cfe/cfe_api.h>
-#include <asm/fw/cfe/cfe_error.h>
-
-/*
- * Use CFE to find out how many CPUs are available, setting up
- * phys_cpu_present_map and the logical/physical mappings.
- * XXXKW will the boot CPU ever not be physical 0?
- *
- * Common setup before any secondaries are started
- */
-void __init plat_smp_setup(void)
-{
-        int i, num;
-
-        cpus_clear(phys_cpu_present_map);
-        cpu_set(0, phys_cpu_present_map);
-        __cpu_number_map[0] = 0;
-        __cpu_logical_map[0] = 0;
-
-        for (i = 1, num = 0; i < NR_CPUS; i++) {
-                if (cfe_cpu_stop(i) == 0) {
-                        cpu_set(i, phys_cpu_present_map);
-                        __cpu_number_map[i] = ++num;
-                        __cpu_logical_map[num] = i;
-                }
-        }
-        printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
-}
-
-void __init plat_prepare_cpus(unsigned int max_cpus)
-{
-}
-
-/*
- * Setup the PC, SP, and GP of a secondary processor and start it
- * running!
- */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
-{
-        int retval;
-
-        retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
-                               __KSTK_TOS(idle),
-                               (unsigned long)task_thread_info(idle), 0);
-        if (retval != 0)
-                printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
-}
-
-/*
- * Code to run on secondary just after probing the CPU
- */
-void __cpuinit prom_init_secondary(void)
-{
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-        extern void bcm1480_smp_init(void);
-        bcm1480_smp_init();
-#elif defined(CONFIG_SIBYTE_SB1250)
-        extern void sb1250_smp_init(void);
-        sb1250_smp_init();
-#else
-#error invalid SMP configuration
-#endif
-}
-
-/*
- * Do any tidying up before marking online and running the idle
- * loop
- */
-void __cpuinit prom_smp_finish(void)
-{
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-        extern void bcm1480_smp_finish(void);
-        bcm1480_smp_finish();
-#elif defined(CONFIG_SIBYTE_SB1250)
-        extern void sb1250_smp_finish(void);
-        sb1250_smp_finish();
-#else
-#error invalid SMP configuration
-#endif
-}
-
-/*
- * Final cleanup after all secondaries booted
- */
-void prom_cpus_done(void)
-{
-}
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 3f52c95a4eb8..0734b933e969 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -24,6 +24,7 @@
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
+#include <asm/fw/cfe/cfe_api.h>
 #include <asm/sibyte/sb1250.h>
 #include <asm/sibyte/sb1250_regs.h>
 #include <asm/sibyte/sb1250_int.h>
@@ -55,7 +56,43 @@ void __cpuinit sb1250_smp_init(void)
         change_c0_status(ST0_IM, imask);
 }
 
-void __cpuinit sb1250_smp_finish(void)
+/*
+ * These are routines for dealing with the sb1250 smp capabilities
+ * independent of board/firmware
+ */
+
+/*
+ * Simple enough; everything is set up, so just poke the appropriate mailbox
+ * register, and we should be set
+ */
+static void sb1250_send_ipi_single(int cpu, unsigned int action)
+{
+        __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
+}
+
+static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+        unsigned int i;
+
+        for_each_cpu_mask(i, mask)
+                sb1250_send_ipi_single(i, action);
+}
+
+/*
+ * Code to run on secondary just after probing the CPU
+ */
+static void __cpuinit sb1250_init_secondary(void)
+{
+        extern void sb1250_smp_init(void);
+
+        sb1250_smp_init();
+}
+
+/*
+ * Do any tidying up before marking online and running the idle
+ * loop
+ */
+static void __cpuinit sb1250_smp_finish(void)
 {
         extern void sb1250_clockevent_init(void);
 
@@ -64,19 +101,68 @@ void __cpuinit sb1250_smp_finish(void)
 }
 
 /*
- * These are routines for dealing with the sb1250 smp capabilities
- * independent of board/firmware
+ * Final cleanup after all secondaries booted
  */
+static void sb1250_cpus_done(void)
+{
+}
 
 /*
- * Simple enough; everything is set up, so just poke the appropriate mailbox
- * register, and we should be set
+ * Setup the PC, SP, and GP of a secondary processor and start it
+ * running!
  */
-void core_send_ipi(int cpu, unsigned int action)
+static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle)
 {
-        __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
+        int retval;
+
+        retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap,
+                               __KSTK_TOS(idle),
+                               (unsigned long)task_thread_info(idle), 0);
+        if (retval != 0)
+                printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
 }
 
+/*
+ * Use CFE to find out how many CPUs are available, setting up
+ * phys_cpu_present_map and the logical/physical mappings.
+ * XXXKW will the boot CPU ever not be physical 0?
+ *
+ * Common setup before any secondaries are started
+ */
+static void __init sb1250_smp_setup(void)
+{
+        int i, num;
+
+        cpus_clear(phys_cpu_present_map);
+        cpu_set(0, phys_cpu_present_map);
+        __cpu_number_map[0] = 0;
+        __cpu_logical_map[0] = 0;
+
+        for (i = 1, num = 0; i < NR_CPUS; i++) {
+                if (cfe_cpu_stop(i) == 0) {
+                        cpu_set(i, phys_cpu_present_map);
+                        __cpu_number_map[i] = ++num;
+                        __cpu_logical_map[num] = i;
+                }
+        }
+        printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+static void __init sb1250_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+struct plat_smp_ops sb_smp_ops = {
+        .send_ipi_single        = sb1250_send_ipi_single,
+        .send_ipi_mask          = sb1250_send_ipi_mask,
+        .init_secondary         = sb1250_init_secondary,
+        .smp_finish             = sb1250_smp_finish,
+        .cpus_done              = sb1250_cpus_done,
+        .boot_secondary         = sb1250_boot_secondary,
+        .smp_setup              = sb1250_smp_setup,
+        .prepare_cpus           = sb1250_prepare_cpus,
+};
+
 void sb1250_mailbox_interrupt(void)
 {
         int cpu = smp_processor_id();