diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 10:54:27 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 10:54:27 -0800 |
commit | 4351654e3ddf86a04966163dce4def586303e5cc (patch) | |
tree | eeb683133e78fbe522c80d0895f94ce4ca699a23 /arch/blackfin/mach-common | |
parent | 3d9de1909b339f967f1b37367df233a0dcfc10cf (diff) | |
parent | 86794b43569c9b8936dff2e8eed503393379af6e (diff) | |
download | linux-4351654e3ddf86a04966163dce4def586303e5cc.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin
Pull blackfin update from Bob Liu.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin:
blackfin: SEC: clean up SEC interrupt initialization
blackfin: kgdb: call generic_exec_single() directly
blackfin: anomaly: add anomaly 16000030 for bf5xx
Blackfin: dpmc: use module_platform_driver macro
Blackfin: remove unused is_in_rom()
Blackfin: remove unnecessary prototype for kobjsize()
Blackfin: twi: Add missing __iomem annotation
Blackfin: Annotate strnlen_user and strlen_user 'src' parameter with __user
Blackfin: Annotate clear_user 'to' parameter with __user
Blackfin: Add missing __user annotations to put_user
Blackfin: Annotate strncpy_from_user src parameter with __user
blackfin: Use Kbuild infrastructure for kvm_para.h
UAPI: (Scripted) Disintegrate arch/blackfin/include/asm
Diffstat (limited to 'arch/blackfin/mach-common')
-rw-r--r-- | arch/blackfin/mach-common/dpmc.c | 19 | ||||
-rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 272 |
2 files changed, 134 insertions, 157 deletions
diff --git a/arch/blackfin/mach-common/dpmc.c b/arch/blackfin/mach-common/dpmc.c index f5685a496c58..978bb400be06 100644 --- a/arch/blackfin/mach-common/dpmc.c +++ b/arch/blackfin/mach-common/dpmc.c @@ -157,24 +157,7 @@ struct platform_driver bfin_dpmc_device_driver = { .name = DRIVER_NAME, } }; - -/** - * bfin_dpmc_init - Init driver - */ -static int __init bfin_dpmc_init(void) -{ - return platform_driver_register(&bfin_dpmc_device_driver); -} -module_init(bfin_dpmc_init); - -/** - * bfin_dpmc_exit - break down driver - */ -static void __exit bfin_dpmc_exit(void) -{ - platform_driver_unregister(&bfin_dpmc_device_driver); -} -module_exit(bfin_dpmc_exit); +module_platform_driver(bfin_dpmc_device_driver); MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); MODULE_DESCRIPTION("cpu power management driver for Blackfin"); diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 902bebc434c6..83ff311fd6ea 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -28,12 +28,6 @@ #include <asm/dpmc.h> #include <asm/traps.h> -#ifndef SEC_GCTL -# define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) -#else -# define SIC_SYSIRQ(irq) ((irq) - IVG15) -#endif - /* * NOTES: * - we have separated the physical Hardware interrupt from the @@ -141,13 +135,13 @@ static void bfin_core_unmask_irq(struct irq_data *d) return; } +#ifndef SEC_GCTL void bfin_internal_mask_irq(unsigned int irq) { unsigned long flags = hard_local_irq_save(); -#ifndef SEC_GCTL #ifdef SIC_IMASK0 - unsigned mask_bank = SIC_SYSIRQ(irq) / 32; - unsigned mask_bit = SIC_SYSIRQ(irq) % 32; + unsigned mask_bank = BFIN_SYSIRQ(irq) / 32; + unsigned mask_bit = BFIN_SYSIRQ(irq) % 32; bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) & ~(1 << mask_bit)); # if defined(CONFIG_SMP) || defined(CONFIG_ICC) @@ -156,9 +150,8 @@ void bfin_internal_mask_irq(unsigned int irq) # endif #else bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & - ~(1 << SIC_SYSIRQ(irq))); + ~(1 << BFIN_SYSIRQ(irq))); #endif /* end of SIC_IMASK0 */ -#endif hard_local_irq_restore(flags); } @@ -176,10 +169,9 @@ void bfin_internal_unmask_irq(unsigned int irq) { unsigned long flags = hard_local_irq_save(); -#ifndef SEC_GCTL #ifdef SIC_IMASK0 - unsigned mask_bank = SIC_SYSIRQ(irq) / 32; - unsigned mask_bit = SIC_SYSIRQ(irq) % 32; + unsigned mask_bank = BFIN_SYSIRQ(irq) / 32; + unsigned mask_bit = BFIN_SYSIRQ(irq) % 32; # ifdef CONFIG_SMP if (cpumask_test_cpu(0, affinity)) # endif @@ -194,17 +186,103 @@ void bfin_internal_unmask_irq(unsigned int irq) # endif #else bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | - (1 << SIC_SYSIRQ(irq))); + (1 << BFIN_SYSIRQ(irq))); +#endif + hard_local_irq_restore(flags); +} + +#ifdef CONFIG_SMP +static void bfin_internal_unmask_irq_chip(struct irq_data *d) +{ + bfin_internal_unmask_irq_affinity(d->irq, d->affinity); +} + +static int bfin_internal_set_affinity(struct irq_data *d, + const struct cpumask *mask, bool force) +{ + bfin_internal_mask_irq(d->irq); + bfin_internal_unmask_irq_affinity(d->irq, mask); + + return 0; +} +#else +static void bfin_internal_unmask_irq_chip(struct irq_data *d) +{ + bfin_internal_unmask_irq(d->irq); +} #endif + +#if defined(CONFIG_PM) +int bfin_internal_set_wake(unsigned int irq, unsigned int state) +{ + u32 bank, bit, wakeup = 0; + unsigned long flags; + bank = BFIN_SYSIRQ(irq) / 32; + bit = BFIN_SYSIRQ(irq) % 32; + + switch (irq) { +#ifdef IRQ_RTC + case IRQ_RTC: + wakeup |= WAKE; + break; +#endif +#ifdef IRQ_CAN0_RX + case IRQ_CAN0_RX: + wakeup |= CANWE; + break; #endif +#ifdef IRQ_CAN1_RX + case IRQ_CAN1_RX: + wakeup |= CANWE; + break; +#endif +#ifdef IRQ_USB_INT0 + case IRQ_USB_INT0: + wakeup |= USBWE; + break; +#endif +#ifdef CONFIG_BF54x + case IRQ_CNT: + wakeup |= ROTWE; + break; +#endif + default: + break; + } + + flags = hard_local_irq_save(); + + if (state) { + bfin_sic_iwr[bank] |= (1 << bit); + vr_wakeup |= wakeup; + + } else { + bfin_sic_iwr[bank] &= ~(1 << bit); + vr_wakeup &= ~wakeup; + } + hard_local_irq_restore(flags); + + return 0; } -#ifdef SEC_GCTL +static int bfin_internal_set_wake_chip(struct irq_data *d, unsigned int state) +{ + return bfin_internal_set_wake(d->irq, state); +} +#else +inline int bfin_internal_set_wake(unsigned int irq, unsigned int state) +{ + return 0; +} +# define bfin_internal_set_wake_chip NULL +#endif + +#else /* SEC_GCTL */ static void bfin_sec_preflow_handler(struct irq_data *d) { unsigned long flags = hard_local_irq_save(); - unsigned int sid = SIC_SYSIRQ(d->irq); + unsigned int sid = BFIN_SYSIRQ(d->irq); bfin_write_SEC_SCI(0, SEC_CSID, sid); @@ -214,7 +292,7 @@ static void bfin_sec_preflow_handler(struct irq_data *d) static void bfin_sec_mask_ack_irq(struct irq_data *d) { unsigned long flags = hard_local_irq_save(); - unsigned int sid = SIC_SYSIRQ(d->irq); + unsigned int sid = BFIN_SYSIRQ(d->irq); bfin_write_SEC_SCI(0, SEC_CSID, sid); @@ -224,7 +302,7 @@ static void bfin_sec_mask_ack_irq(struct irq_data *d) static void bfin_sec_unmask_irq(struct irq_data *d) { unsigned long flags = hard_local_irq_save(); - unsigned int sid = SIC_SYSIRQ(d->irq); + unsigned int sid = BFIN_SYSIRQ(d->irq); bfin_write32(SEC_END, sid); @@ -269,7 +347,7 @@ static void bfin_sec_enable_sci(unsigned int sid) unsigned long flags = hard_local_irq_save(); uint32_t reg_sctl = bfin_read_SEC_SCTL(sid); - if (sid == SIC_SYSIRQ(IRQ_WATCH0)) + if (sid == BFIN_SYSIRQ(IRQ_WATCH0)) reg_sctl |= SEC_SCTL_FAULT_EN; else reg_sctl |= SEC_SCTL_INT_EN; @@ -292,7 +370,7 @@ static void bfin_sec_disable_sci(unsigned int sid) static void bfin_sec_enable(struct irq_data *d) { unsigned long flags = hard_local_irq_save(); - unsigned int sid = SIC_SYSIRQ(d->irq); + unsigned int sid = BFIN_SYSIRQ(d->irq); bfin_sec_enable_sci(sid); bfin_sec_enable_ssi(sid); @@ -303,7 +381,7 @@ static void bfin_sec_enable(struct irq_data *d) static void bfin_sec_disable(struct irq_data *d) { unsigned long flags = hard_local_irq_save(); - unsigned int sid = SIC_SYSIRQ(d->irq); + unsigned int sid = BFIN_SYSIRQ(d->irq); bfin_sec_disable_sci(sid); bfin_sec_disable_ssi(sid); @@ -328,9 +406,10 @@ static void bfin_sec_set_priority(unsigned int sec_int_levels, u8 *sec_int_prior hard_local_irq_restore(flags); } -void bfin_sec_raise_irq(unsigned int sid) +void bfin_sec_raise_irq(unsigned int irq) { unsigned long flags = hard_local_irq_save(); + unsigned int sid = BFIN_SYSIRQ(irq); bfin_write32(SEC_RAISE, sid); @@ -341,8 +420,13 @@ static void init_software_driven_irq(void) { bfin_sec_set_ssi_coreid(34, 0); bfin_sec_set_ssi_coreid(35, 1); + + bfin_sec_enable_sci(35); + bfin_sec_enable_ssi(35); bfin_sec_set_ssi_coreid(36, 0); bfin_sec_set_ssi_coreid(37, 1); + bfin_sec_enable_sci(37); + bfin_sec_enable_ssi(37); } void bfin_sec_resume(void) @@ -412,6 +496,8 @@ void handle_sec_fault(unsigned int irq, struct irq_desc *desc) } raw_spin_unlock(&desc->lock); + + handle_fasteoi_irq(irq, desc); } void handle_core_fault(unsigned int irq, struct irq_desc *desc) @@ -431,105 +517,18 @@ void handle_core_fault(unsigned int irq, struct irq_desc *desc) printk(KERN_NOTICE "Kernel Stack\n"); show_stack(current, NULL); print_modules(); - panic("Kernel core hardware error"); + panic("Core 0 hardware error"); break; case IRQ_C0_NMI_L1_PARITY_ERR: - panic("NMI occurs unexpectedly"); + panic("Core 0 NMI L1 parity error"); break; default: - panic("Core 1 fault occurs unexpectedly"); + panic("Core 1 fault %d occurs unexpectedly", irq); } raw_spin_unlock(&desc->lock); } -#endif - -#ifdef CONFIG_SMP -static void bfin_internal_unmask_irq_chip(struct irq_data *d) -{ - bfin_internal_unmask_irq_affinity(d->irq, d->affinity); -} - -static int bfin_internal_set_affinity(struct irq_data *d, - const struct cpumask *mask, bool force) -{ - bfin_internal_mask_irq(d->irq); - bfin_internal_unmask_irq_affinity(d->irq, mask); - - return 0; -} -#else -static void bfin_internal_unmask_irq_chip(struct irq_data *d) -{ - bfin_internal_unmask_irq(d->irq); -} -#endif - -#if defined(CONFIG_PM) && !defined(SEC_GCTL) -int bfin_internal_set_wake(unsigned int irq, unsigned int state) -{ - u32 bank, bit, wakeup = 0; - unsigned long flags; - bank = SIC_SYSIRQ(irq) / 32; - bit = SIC_SYSIRQ(irq) % 32; - - switch (irq) { -#ifdef IRQ_RTC - case IRQ_RTC: - wakeup |= WAKE; - break; -#endif -#ifdef IRQ_CAN0_RX - case IRQ_CAN0_RX: - wakeup |= CANWE; - break; -#endif -#ifdef IRQ_CAN1_RX - case IRQ_CAN1_RX: - wakeup |= CANWE; - break; -#endif -#ifdef IRQ_USB_INT0 - case IRQ_USB_INT0: - wakeup |= USBWE; - break; -#endif -#ifdef CONFIG_BF54x - case IRQ_CNT: - wakeup |= ROTWE; - break; -#endif - default: - break; - } - - flags = hard_local_irq_save(); - - if (state) { - bfin_sic_iwr[bank] |= (1 << bit); - vr_wakeup |= wakeup; - - } else { - bfin_sic_iwr[bank] &= ~(1 << bit); - vr_wakeup &= ~wakeup; - } - - hard_local_irq_restore(flags); - - return 0; -} - -static int bfin_internal_set_wake_chip(struct irq_data *d, unsigned int state) -{ - return bfin_internal_set_wake(d->irq, state); -} -#else -inline int bfin_internal_set_wake(unsigned int irq, unsigned int state) -{ - return 0; -} -# define bfin_internal_set_wake_chip NULL -#endif +#endif /* SEC_GCTL */ static struct irq_chip bfin_core_irqchip = { .name = "CORE", @@ -537,6 +536,7 @@ static struct irq_chip bfin_core_irqchip = { .irq_unmask = bfin_core_unmask_irq, }; +#ifndef SEC_GCTL static struct irq_chip bfin_internal_irqchip = { .name = "INTN", .irq_mask = bfin_internal_mask_irq_chip, @@ -548,8 +548,7 @@ static struct irq_chip bfin_internal_irqchip = { #endif .irq_set_wake = bfin_internal_set_wake_chip, }; - -#ifdef SEC_GCTL +#else static struct irq_chip bfin_sec_irqchip = { .name = "SEC", .irq_mask_ack = bfin_sec_mask_ack_irq, @@ -1138,7 +1137,9 @@ static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state) return -EINVAL; } +#ifndef SEC_GCTL bfin_internal_set_wake(pint_irq, state); +#endif return 0; } @@ -1173,7 +1174,7 @@ static int sec_suspend(void) u32 bank; for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) - save_pint_sec_ctl[bank] = bfin_read_SEC_SCTL(bank + SIC_SYSIRQ(IRQ_PINT0)); + save_pint_sec_ctl[bank] = bfin_read_SEC_SCTL(bank + BFIN_SYSIRQ(IRQ_PINT0)); return 0; } @@ -1187,7 +1188,7 @@ static void sec_resume(void) bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN); for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) - bfin_write_SEC_SCTL(bank + SIC_SYSIRQ(IRQ_PINT0), save_pint_sec_ctl[bank]); + bfin_write_SEC_SCTL(bank + BFIN_SYSIRQ(IRQ_PINT0), save_pint_sec_ctl[bank]); } static struct syscore_ops sec_pm_syscore_ops = { @@ -1538,33 +1539,26 @@ int __init init_arch_irq(void) for (irq = 0; irq <= SYS_IRQS; irq++) { if (irq <= IRQ_CORETMR) { - irq_set_chip(irq, &bfin_core_irqchip); -#ifdef CONFIG_TICKSOURCE_CORETMR + irq_set_chip_and_handler(irq, &bfin_core_irqchip, + handle_simple_irq); +#if defined(CONFIG_TICKSOURCE_CORETMR) && defined(CONFIG_SMP) if (irq == IRQ_CORETMR) -# ifdef CONFIG_SMP irq_set_handler(irq, handle_percpu_irq); -# else - irq_set_handler(irq, handle_simple_irq); -# endif #endif - } else if (irq < BFIN_IRQ(0)) { - irq_set_chip_and_handler(irq, &bfin_internal_irqchip, - handle_simple_irq); - } else if (irq == IRQ_SEC_ERR) { - irq_set_chip_and_handler(irq, &bfin_sec_irqchip, - handle_sec_fault); - } else if (irq < CORE_IRQS && irq >= IRQ_C0_DBL_FAULT) { - irq_set_chip_and_handler(irq, &bfin_sec_irqchip, - handle_core_fault); } else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) { irq_set_chip(irq, &bfin_sec_irqchip); irq_set_chained_handler(irq, bfin_demux_gpio_irq); } else if (irq >= BFIN_IRQ(34) && irq <= BFIN_IRQ(37)) { - irq_set_chip(irq, &bfin_sec_irqchip); - irq_set_handler(irq, handle_percpu_irq); - } else { irq_set_chip_and_handler(irq, &bfin_sec_irqchip, - handle_fasteoi_irq); + handle_percpu_irq); + } else { + irq_set_chip(irq, &bfin_sec_irqchip); + if (irq == IRQ_SEC_ERR) + irq_set_handler(irq, handle_sec_fault); + else if (irq >= IRQ_C0_DBL_FAULT && irq < CORE_IRQS) + irq_set_handler(irq, handle_core_fault); + else + irq_set_handler(irq, handle_fasteoi_irq); __irq_set_preflow_handler(irq, bfin_sec_preflow_handler); } } @@ -1593,8 +1587,8 @@ int __init init_arch_irq(void) bfin_write_SEC_FCTL(SEC_FCTL_EN | SEC_FCTL_SYSRST_EN | SEC_FCTL_FLTIN_EN); - bfin_sec_enable_sci(SIC_SYSIRQ(IRQ_WATCH0)); - bfin_sec_enable_ssi(SIC_SYSIRQ(IRQ_WATCH0)); + bfin_sec_enable_sci(BFIN_SYSIRQ(IRQ_WATCH0)); + bfin_sec_enable_ssi(BFIN_SYSIRQ(IRQ_WATCH0)); bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET); udelay(100); bfin_write_SEC_GCTL(SEC_GCTL_EN); |