From 902ef5d77aeaff43bce8d3ce55c442a12eb71819 Mon Sep 17 00:00:00 2001 From: Srinidhi Kasagar Date: Fri, 2 Nov 2012 18:14:34 +0530 Subject: ARM: mach-ux500: use SGI0 to wake up the other core The commit 7d28e3eaa1a8e951251b942e7220f97114bd73b9 ("ARM: ux500: wake secondary cpu via resched") makes use of schedule IPI to wake up the secondary core which seems incorrect. Rather use SGI0. Signed-off-by: srinidhi kasagar Signed-off-by: Rob Herring Acked-by: Olof Johansson --- arch/arm/mach-ux500/platsmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/mach-ux500') diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index 3db7782f3afb..79531f1dffbc 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -91,7 +91,7 @@ static int __cpuinit ux500_boot_secondary(unsigned int cpu, struct task_struct * */ write_pen_release(cpu_logical_map(cpu)); - smp_send_reschedule(cpu); + gic_raise_softirq(cpumask_of(cpu), 0); timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { -- cgit v1.2.3 From b1cffebf1029c87e1f1984d48463ee21093a6bc7 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 26 Nov 2012 15:05:48 -0600 Subject: ARM: GIC: remove direct use of gic_raise_softirq In preparation of moving gic code to drivers/irqchip, remove the direct platform dependencies on gic_raise_softirq. Move the setup of smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask function to trigger wake-up IPIs. Signed-off-by: Rob Herring Cc: Russell King Cc: Kukjin Kim Cc: Sascha Hauer Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Acked-by: Tony Lindgren Acked-by: Santosh Shilimkar Cc: Paul Mundt Cc: Magnus Damm Acked-by: Viresh Kumar Cc: Shiraz Hashim Acked-by: Stephen Warren Cc: Srinidhi Kasagar Cc: Linus Walleij Acked-by: Olof Johansson --- arch/arm/mach-ux500/platsmp.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch/arm/mach-ux500') diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index 79531f1dffbc..fa07d4de6d85 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -91,7 +91,7 @@ static int __cpuinit ux500_boot_secondary(unsigned int cpu, struct task_struct * */ write_pen_release(cpu_logical_map(cpu)); - gic_raise_softirq(cpumask_of(cpu), 0); + arch_send_wakeup_ipi_mask(cpumask_of(cpu)); timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { @@ -155,8 +155,6 @@ static void __init ux500_smp_init_cpus(void) for (i = 0; i < ncores; i++) set_cpu_possible(i, true); - - set_smp_cross_call(gic_raise_softirq); } static void __init ux500_smp_prepare_cpus(unsigned int max_cpus) -- cgit v1.2.3 From 1d5cc604f42ff1acdec0407247b2f720135ba0c2 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 20 Nov 2012 19:52:32 -0600 Subject: ARM: remove mach .handle_irq for GIC users Now that the GIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Signed-off-by: Rob Herring Cc: Russell King Cc: Anton Vorontsov Cc: Kyungmin Park Cc: Sascha Hauer Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Acked-by: Tony Lindgren Cc: Paul Mundt Cc: Magnus Damm Cc: Dinh Nguyen Cc: Shiraz Hashim Acked-by: Stephen Warren Cc: Srinidhi Kasagar Cc: Linus Walleij Acked-by: Viresh Kumar Acked-by: Kukjin Kim Acked-by: Shawn Guo Acked-by: Olof Johansson Acked-by: Arnd Bergmann --- arch/arm/mach-ux500/board-mop500.c | 5 ----- arch/arm/mach-ux500/cpu-db8500.c | 2 -- 2 files changed, 7 deletions(-) (limited to 'arch/arm/mach-ux500') diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index d453522edb0d..af406c7b0d70 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -40,7 +40,6 @@ #include #include -#include #include #include @@ -752,7 +751,6 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform") .init_irq = ux500_init_irq, /* we re-use nomadik timer here */ .timer = &ux500_timer, - .handle_irq = gic_handle_irq, .init_machine = mop500_init_machine, .init_late = ux500_init_late, MACHINE_END @@ -762,7 +760,6 @@ MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520") .map_io = u8500_map_io, .init_irq = ux500_init_irq, .timer = &ux500_timer, - .handle_irq = gic_handle_irq, .init_machine = mop500_init_machine, .init_late = ux500_init_late, MACHINE_END @@ -773,7 +770,6 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+") .map_io = u8500_map_io, .init_irq = ux500_init_irq, .timer = &ux500_timer, - .handle_irq = gic_handle_irq, .init_machine = hrefv60_init_machine, .init_late = ux500_init_late, MACHINE_END @@ -785,7 +781,6 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform") .init_irq = ux500_init_irq, /* we re-use nomadik timer here */ .timer = &ux500_timer, - .handle_irq = gic_handle_irq, .init_machine = snowball_init_machine, .init_late = NULL, MACHINE_END diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 5b286e06474c..4c91d767c99c 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include @@ -342,7 +341,6 @@ DT_MACHINE_START(U8500_DT, "ST-Ericsson Ux5x0 platform (Device Tree Support)") .init_irq = ux500_init_irq, /* we re-use nomadik timer here */ .timer = &ux500_timer, - .handle_irq = gic_handle_irq, .init_machine = u8500_init_machine, .init_late = NULL, .dt_compat = stericsson_dt_platform_compat, -- cgit v1.2.3 From 0529e315bbda5d502c93df2cfafba9bb337fbdf4 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 5 Nov 2012 16:18:28 -0600 Subject: ARM: use common irqchip_init for GIC init Convert all GIC DT initialization over to use common irqchip_init function. Signed-off-by: Rob Herring Cc: Russell King Cc: Kukjin Kim Acked-by: Shawn Guo Cc: Sascha Hauer Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Tony Lindgren Cc: Paul Mundt Cc: Magnus Damm Cc: Dinh Nguyen Cc: Viresh Kumar Cc: Shiraz Hashim Cc: Stephen Warren Cc: Srinidhi Kasagar Cc: Linus Walleij --- arch/arm/mach-ux500/cpu.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'arch/arm/mach-ux500') diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 721e7b4275f3..a5931f736658 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -42,11 +43,6 @@ void __iomem *_PRCMU_BASE; * This feels fragile because it depends on the gpio device getting probed * _before_ any device uses the gpio interrupts. */ -static const struct of_device_id ux500_dt_irq_match[] = { - { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, - {}, -}; - void __init ux500_init_irq(void) { void __iomem *dist_base; @@ -62,7 +58,7 @@ void __init ux500_init_irq(void) #ifdef CONFIG_OF if (of_have_populated_dt()) - of_irq_init(ux500_dt_irq_match); + irqchip_init(); else #endif gic_init(0, 29, dist_base, cpu_base); -- cgit v1.2.3 From 520f7bd73354f003a9a59937b28e4903d985c420 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 27 Dec 2012 13:10:24 -0600 Subject: irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring Cc: Thomas Gleixner Cc: Russell King Cc: Anton Vorontsov Cc: Kukjin Kim Cc: Sascha Hauer Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Tony Lindgren Cc: Paul Mundt Cc: Magnus Damm Cc: Viresh Kumar Cc: Shiraz Hashim Cc: Stephen Warren Cc: Srinidhi Kasagar Cc: Linus Walleij Cc: Samuel Ortiz --- arch/arm/mach-ux500/cpu.c | 2 +- arch/arm/mach-ux500/platsmp.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-ux500') diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index a5931f736658..5dd90d31ffc3 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -18,9 +18,9 @@ #include #include #include +#include #include -#include #include #include diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index fa07d4de6d85..b8adac93421f 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -16,9 +16,9 @@ #include #include #include +#include #include -#include #include #include #include -- cgit v1.2.3