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authorOlof Johansson <olof@lixom.net>2012-09-22 00:06:21 -0700
committerOlof Johansson <olof@lixom.net>2012-09-22 00:16:04 -0700
commit25468fe89f88c4ceeef94526e94ae0db176f6999 (patch)
treed70a713525281276b5063c814413bb3141e6056c /arch/arm/mach-msm
parentARM: highbank: call highbank_pm_init from .init_machine (diff)
parentARM: consolidate pen_release instead of having per platform definitions (diff)
downloadlinux-dev-25468fe89f88c4ceeef94526e94ae0db176f6999.tar.xz
linux-dev-25468fe89f88c4ceeef94526e94ae0db176f6999.zip
Merge branch 'multiplatform/smp_ops' into next/multiplatform
* multiplatform/smp_ops: ARM: consolidate pen_release instead of having per platform definitions ARM: smp: Make SMP operations mandatory ARM: SoC: convert spear13xx to SMP operations ARM: SoC: convert imx6q to SMP operations ARM: SoC: convert highbank to SMP operations ARM: SoC: convert shmobile SMP to SMP operations ARM: SoC: convert ux500 to SMP operations ARM: SoC: convert MSM to SMP operations ARM: SoC: convert Exynos4 to SMP operations ARM: SoC: convert Tegra to SMP operations ARM: SoC: convert OMAP4 to SMP operations ARM: SoC: convert VExpress/RealView to SMP operations ARM: SoC: add per-platform SMP operations Conflicts due to file moves or removals in: arch/arm/mach-msm/board-msm8960.c arch/arm/mach-msm/board-msm8x60.c arch/arm/mach-tegra/board-harmony.c arch/arm/mach-tegra/board-trimslice.c Conflicts due to board file cleanup: arch/arm/mach-tegra/board-paz00.c Conflicts due to cpu hotplug addition: arch/arm/mach-tegra/hotplug.c Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-msm')
-rw-r--r--arch/arm/mach-msm/board-dt-8660.c2
-rw-r--r--arch/arm/mach-msm/board-dt-8960.c2
-rw-r--r--arch/arm/mach-msm/core.h2
-rw-r--r--arch/arm/mach-msm/hotplug.c18
-rw-r--r--arch/arm/mach-msm/platsmp.c24
5 files changed, 23 insertions, 25 deletions
diff --git a/arch/arm/mach-msm/board-dt-8660.c b/arch/arm/mach-msm/board-dt-8660.c
index f77f57f39104..e5643f629dcd 100644
--- a/arch/arm/mach-msm/board-dt-8660.c
+++ b/arch/arm/mach-msm/board-dt-8660.c
@@ -20,6 +20,7 @@
#include <mach/board.h>
#include "common.h"
+#include "core.h"
static const struct of_device_id msm_dt_gic_match[] __initconst = {
{ .compatible = "qcom,msm-8660-qgic", .data = gic_of_init },
@@ -53,6 +54,7 @@ static const char *msm8x60_fluid_match[] __initdata = {
};
DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
+ .smp = smp_ops(msm_smp_ops),
.map_io = msm_map_msm8x60_io,
.init_irq = msm8x60_init_irq,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-msm/board-dt-8960.c b/arch/arm/mach-msm/board-dt-8960.c
index 8df99b8f3c92..139d61bbc8e7 100644
--- a/arch/arm/mach-msm/board-dt-8960.c
+++ b/arch/arm/mach-msm/board-dt-8960.c
@@ -18,6 +18,7 @@
#include <asm/mach/arch.h>
#include "common.h"
+#include "core.h"
static const struct of_device_id msm_dt_gic_match[] __initconst = {
{ .compatible = "qcom,msm-qgic2", .data = gic_of_init },
@@ -40,6 +41,7 @@ static const char * const msm8960_dt_match[] __initconst = {
};
DT_MACHINE_START(MSM8960_DT, "Qualcomm MSM (Flattened Device Tree)")
+ .smp = smp_ops(msm_smp_ops),
.map_io = msm_map_msm8960_io,
.init_irq = msm_dt_init_irq,
.timer = &msm_dt_timer,
diff --git a/arch/arm/mach-msm/core.h b/arch/arm/mach-msm/core.h
new file mode 100644
index 000000000000..a9bab53dddf4
--- /dev/null
+++ b/arch/arm/mach-msm/core.h
@@ -0,0 +1,2 @@
+extern struct smp_operations msm_smp_ops;
+extern void msm_cpu_die(unsigned int cpu);
diff --git a/arch/arm/mach-msm/hotplug.c b/arch/arm/mach-msm/hotplug.c
index a446fc14221f..002ac1e47235 100644
--- a/arch/arm/mach-msm/hotplug.c
+++ b/arch/arm/mach-msm/hotplug.c
@@ -13,7 +13,7 @@
#include <asm/cacheflush.h>
#include <asm/smp_plat.h>
-extern volatile int pen_release;
+#include "core.h"
static inline void cpu_enter_lowpower(void)
{
@@ -57,17 +57,12 @@ static inline void platform_do_lowpower(unsigned int cpu)
}
}
-int platform_cpu_kill(unsigned int cpu)
-{
- return 1;
-}
-
/*
* platform-specific code to shutdown a CPU
*
* Called with IRQs disabled
*/
-void platform_cpu_die(unsigned int cpu)
+void __ref msm_cpu_die(unsigned int cpu)
{
/*
* we're ready for shutdown now, so do it
@@ -81,12 +76,3 @@ void platform_cpu_die(unsigned int cpu)
*/
cpu_leave_lowpower();
}
-
-int platform_cpu_disable(unsigned int cpu)
-{
- /*
- * we don't allow CPU 0 to be shutdown (it is still too special
- * e.g. clock tick interrupts)
- */
- return cpu == 0 ? -EPERM : 0;
-}
diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c
index 2d791e6b4ad1..637021c0d8af 100644
--- a/arch/arm/mach-msm/platsmp.c
+++ b/arch/arm/mach-msm/platsmp.c
@@ -23,17 +23,13 @@
#include <asm/smp_plat.h>
#include "scm-boot.h"
+#include "core.h"
#define VDD_SC1_ARRAY_CLAMP_GFS_CTL 0x15A0
#define SCSS_CPU1CORE_RESET 0xD80
#define SCSS_DBG_STATUS_CORE_PWRDUP 0xE64
extern void msm_secondary_startup(void);
-/*
- * control for which core is the next to come out of the secondary
- * boot "holding pen".
- */
-volatile int pen_release = -1;
static DEFINE_SPINLOCK(boot_lock);
@@ -43,7 +39,7 @@ static inline int get_core_count(void)
return ((read_cpuid_id() >> 4) & 3) + 1;
}
-void __cpuinit platform_secondary_init(unsigned int cpu)
+static void __cpuinit msm_secondary_init(unsigned int cpu)
{
/*
* if any interrupts are already enabled for the primary
@@ -85,7 +81,7 @@ static __cpuinit void prepare_cold_cpu(unsigned int cpu)
"address\n");
}
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit msm_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
unsigned long timeout;
static int cold_boot_done;
@@ -145,7 +141,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
* does not support the ARM SCU, so just set the possible cpu mask to
* NR_CPUS.
*/
-void __init smp_init_cpus(void)
+static void __init msm_smp_init_cpus(void)
{
unsigned int i, ncores = get_core_count();
@@ -161,6 +157,16 @@ void __init smp_init_cpus(void)
set_smp_cross_call(gic_raise_softirq);
}
-void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+static void __init msm_smp_prepare_cpus(unsigned int max_cpus)
{
}
+
+struct smp_operations msm_smp_ops __initdata = {
+ .smp_init_cpus = msm_smp_init_cpus,
+ .smp_prepare_cpus = msm_smp_prepare_cpus,
+ .smp_secondary_init = msm_secondary_init,
+ .smp_boot_secondary = msm_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = msm_cpu_die,
+#endif
+};