[PATCH v7 07/12] ARM: SoC: convert MSM SMP to SoC descriptor
From: Marc Zyngier <hidden>
Date: 2012-06-07 16:09:24
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Convert MSM SMP platforms to use the SoC descriptor to provide their SMP and CPU hotplug operations. Cc: David Brown <redacted> Signed-off-by: Marc Zyngier <redacted> --- arch/arm/mach-msm/Makefile | 2 +- arch/arm/mach-msm/board-msm8960.c | 3 +++ arch/arm/mach-msm/board-msm8x60.c | 7 +++++++ arch/arm/mach-msm/core.c | 17 +++++++++++++++++ arch/arm/mach-msm/core.h | 9 +++++++++ arch/arm/mach-msm/hotplug.c | 8 +++++--- arch/arm/mach-msm/platsmp.c | 20 ++++++++++++++++---- 7 files changed, 58 insertions(+), 8 deletions(-) create mode 100644 arch/arm/mach-msm/core.c create mode 100644 arch/arm/mach-msm/core.h
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index 4ad3969..cba9355 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile@@ -1,5 +1,5 @@ obj-y += io.o idle.o timer.o -obj-y += clock.o +obj-y += clock.o core.o obj-$(CONFIG_DEBUG_FS) += clock-debug.o obj-$(CONFIG_MSM_VIC) += irq-vic.o
diff --git a/arch/arm/mach-msm/board-msm8960.c b/arch/arm/mach-msm/board-msm8960.c
index 65f4a1d..3b4f98b 100644
--- a/arch/arm/mach-msm/board-msm8960.c
+++ b/arch/arm/mach-msm/board-msm8960.c@@ -30,6 +30,7 @@ #include <mach/board.h> #include <mach/msm_iomap.h> +#include "core.h" #include "devices.h" static void __init msm8960_fixup(struct tag *tag, char **cmdline,
@@ -99,6 +100,7 @@ static void __init msm8960_init_late(void) } MACHINE_START(MSM8960_SIM, "QCT MSM8960 SIMULATOR") + .soc = &msm_soc_desc, .fixup = msm8960_fixup, .reserve = msm8960_reserve, .map_io = msm8960_map_io,
@@ -110,6 +112,7 @@ MACHINE_START(MSM8960_SIM, "QCT MSM8960 SIMULATOR") MACHINE_END MACHINE_START(MSM8960_RUMI3, "QCT MSM8960 RUMI3") + .soc = &msm_soc_desc, .fixup = msm8960_fixup, .reserve = msm8960_reserve, .map_io = msm8960_map_io,
diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c
index e37a724..4064ce3 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c@@ -29,6 +29,8 @@ #include <mach/board.h> #include <mach/msm_iomap.h> +#include "core.h" + static void __init msm8x60_fixup(struct tag *tag, char **cmdline, struct meminfo *mi) {
@@ -110,6 +112,7 @@ static const char *msm8x60_fluid_match[] __initdata = { #endif /* CONFIG_OF */ MACHINE_START(MSM8X60_RUMI3, "QCT MSM8X60 RUMI3") + .soc = &msm_soc_desc, .fixup = msm8x60_fixup, .reserve = msm8x60_reserve, .map_io = msm8x60_map_io,
@@ -121,6 +124,7 @@ MACHINE_START(MSM8X60_RUMI3, "QCT MSM8X60 RUMI3") MACHINE_END MACHINE_START(MSM8X60_SURF, "QCT MSM8X60 SURF") + .soc = &msm_soc_desc, .fixup = msm8x60_fixup, .reserve = msm8x60_reserve, .map_io = msm8x60_map_io,
@@ -132,6 +136,7 @@ MACHINE_START(MSM8X60_SURF, "QCT MSM8X60 SURF") MACHINE_END MACHINE_START(MSM8X60_SIM, "QCT MSM8X60 SIMULATOR") + .soc = &msm_soc_desc, .fixup = msm8x60_fixup, .reserve = msm8x60_reserve, .map_io = msm8x60_map_io,
@@ -143,6 +148,7 @@ MACHINE_START(MSM8X60_SIM, "QCT MSM8X60 SIMULATOR") MACHINE_END MACHINE_START(MSM8X60_FFA, "QCT MSM8X60 FFA") + .soc = &msm_soc_desc, .fixup = msm8x60_fixup, .reserve = msm8x60_reserve, .map_io = msm8x60_map_io,
@@ -156,6 +162,7 @@ MACHINE_END #ifdef CONFIG_OF /* TODO: General device tree support for all MSM. */ DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)") + .soc = &msm_soc_desc, .map_io = msm8x60_map_io, .init_irq = msm8x60_init_irq, .init_machine = msm8x60_dt_init,
diff --git a/arch/arm/mach-msm/core.c b/arch/arm/mach-msm/core.c
new file mode 100644
index 0000000..390cde7
--- /dev/null
+++ b/arch/arm/mach-msm/core.c@@ -0,0 +1,17 @@ +/* + * Copyright (C) 2011 ARM Ltd. + * All Rights Reserved + * + * 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/init.h> +#include "core.h" + +struct arm_soc_desc msm_soc_desc __initdata = { + .name = "Qualcomm MSM", + soc_smp_init_ops(msm_soc_smp_init_ops) + soc_smp_ops(msm_soc_smp_ops) +};
diff --git a/arch/arm/mach-msm/core.h b/arch/arm/mach-msm/core.h
new file mode 100644
index 0000000..e8394dd
--- /dev/null
+++ b/arch/arm/mach-msm/core.h@@ -0,0 +1,9 @@ +#include <asm/soc.h> + +extern struct arm_soc_smp_init_ops msm_soc_smp_init_ops; +extern struct arm_soc_smp_ops msm_soc_smp_ops; +extern struct arm_soc_desc msm_soc_desc; + +extern int msm_cpu_kill(unsigned int cpu); +extern void msm_cpu_die(unsigned int cpu); +extern int msm_cpu_disable(unsigned int cpu);
diff --git a/arch/arm/mach-msm/hotplug.c b/arch/arm/mach-msm/hotplug.c
index a446fc1..6ba3602 100644
--- a/arch/arm/mach-msm/hotplug.c
+++ b/arch/arm/mach-msm/hotplug.c@@ -13,6 +13,8 @@ #include <asm/cacheflush.h> #include <asm/smp_plat.h> +#include "core.h" + extern volatile int pen_release; static inline void cpu_enter_lowpower(void)
@@ -57,7 +59,7 @@ static inline void platform_do_lowpower(unsigned int cpu) } } -int platform_cpu_kill(unsigned int cpu) +int msm_cpu_kill(unsigned int cpu) { return 1; }
@@ -67,7 +69,7 @@ int platform_cpu_kill(unsigned int cpu) * * Called with IRQs disabled */ -void platform_cpu_die(unsigned int cpu) +void msm_cpu_die(unsigned int cpu) { /* * we're ready for shutdown now, so do it
@@ -82,7 +84,7 @@ void platform_cpu_die(unsigned int cpu) cpu_leave_lowpower(); } -int platform_cpu_disable(unsigned int cpu) +int msm_cpu_disable(unsigned int cpu) { /* * we don't allow CPU 0 to be shutdown (it is still too special
diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c
index db0117e..4e4ebd9 100644
--- a/arch/arm/mach-msm/platsmp.c
+++ b/arch/arm/mach-msm/platsmp.c@@ -25,6 +25,7 @@ #include <mach/msm_iomap.h> #include "scm-boot.h" +#include "core.h" #define VDD_SC1_ARRAY_CLAMP_GFS_CTL 0x15A0 #define SCSS_CPU1CORE_RESET 0xD80
@@ -48,7 +49,7 @@ 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) { /* Configure edge-triggered PPIs */ writel(GIC_PPI_EDGE_MASK, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
@@ -93,7 +94,7 @@ 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;
@@ -153,7 +154,7 @@ 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();
@@ -169,6 +170,17 @@ 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 arm_soc_smp_init_ops msm_soc_smp_init_ops __initdata = { + .smp_init_cpus = msm_smp_init_cpus, + .smp_prepare_cpus = msm_smp_prepare_cpus, +}; + +struct arm_soc_smp_ops msm_soc_smp_ops __initdata = { + .smp_secondary_init = msm_secondary_init, + .smp_boot_secondary = msm_boot_secondary, + soc_hotplug_ops(msm) +};
--
1.7.10.1