diff options
Diffstat (limited to 'arch/microblaze/kernel')
| -rw-r--r-- | arch/microblaze/kernel/dma.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/early_printk.c | 4 | ||||
| -rw-r--r-- | arch/microblaze/kernel/entry.S | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/intc.c | 52 | ||||
| -rw-r--r-- | arch/microblaze/kernel/irq.c | 12 | ||||
| -rw-r--r-- | arch/microblaze/kernel/module.c | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/process.c | 6 | ||||
| -rw-r--r-- | arch/microblaze/kernel/prom.c | 3 | ||||
| -rw-r--r-- | arch/microblaze/kernel/reset.c | 43 | ||||
| -rw-r--r-- | arch/microblaze/kernel/setup.c | 18 | ||||
| -rw-r--r-- | arch/microblaze/kernel/syscall_table.S | 3 | ||||
| -rw-r--r-- | arch/microblaze/kernel/timer.c | 21 |
12 files changed, 59 insertions, 108 deletions
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index dc6416d265d6..65a4af4cbbbe 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -10,6 +10,7 @@ #include <linux/dma-mapping.h> #include <linux/gfp.h> #include <linux/dma-debug.h> +#include <linux/export.h> #include <asm/bug.h> /* diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c index d26d92d47754..8356e47631c4 100644 --- a/arch/microblaze/kernel/early_printk.c +++ b/arch/microblaze/kernel/early_printk.c @@ -50,9 +50,9 @@ static void early_printk_uartlite_write(struct console *unused, const char *s, unsigned n) { while (*s && n-- > 0) { - early_printk_uartlite_putc(*s); if (*s == '\n') early_printk_uartlite_putc('\r'); + early_printk_uartlite_putc(*s); s++; } } @@ -94,9 +94,9 @@ static void early_printk_uart16550_write(struct console *unused, const char *s, unsigned n) { while (*s && n-- > 0) { - early_printk_uart16550_putc(*s); if (*s == '\n') early_printk_uart16550_putc('\r'); + early_printk_uart16550_putc(*s); s++; } } diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index ca15bc5c7449..66e34a3bfe1b 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -468,7 +468,7 @@ C_ENTRY(sys_fork_wrapper): addi r5, r0, SIGCHLD /* Arg 0: flags */ lwi r6, r1, PT_R1 /* Arg 1: child SP (use parent's) */ addik r7, r1, 0 /* Arg 2: parent context */ - add r8. r0, r0 /* Arg 3: (unused) */ + add r8, r0, r0 /* Arg 3: (unused) */ add r9, r0, r0; /* Arg 4: (unused) */ brid do_fork /* Do real work (tail-call) */ add r10, r0, r0; /* Arg 5: (unused) */ diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c index eb41441c7fd0..44b177e2ab12 100644 --- a/arch/microblaze/kernel/intc.c +++ b/arch/microblaze/kernel/intc.c @@ -42,8 +42,9 @@ unsigned int nr_irq; static void intc_enable_or_unmask(struct irq_data *d) { - unsigned long mask = 1 << d->irq; - pr_debug("enable_or_unmask: %d\n", d->irq); + unsigned long mask = 1 << d->hwirq; + + pr_debug("enable_or_unmask: %ld\n", d->hwirq); out_be32(INTC_BASE + SIE, mask); /* ack level irqs because they can't be acked during @@ -56,20 +57,21 @@ static void intc_enable_or_unmask(struct irq_data *d) static void intc_disable_or_mask(struct irq_data *d) { - pr_debug("disable: %d\n", d->irq); - out_be32(INTC_BASE + CIE, 1 << d->irq); + pr_debug("disable: %ld\n", d->hwirq); + out_be32(INTC_BASE + CIE, 1 << d->hwirq); } static void intc_ack(struct irq_data *d) { - pr_debug("ack: %d\n", d->irq); - out_be32(INTC_BASE + IAR, 1 << d->irq); + pr_debug("ack: %ld\n", d->hwirq); + out_be32(INTC_BASE + IAR, 1 << d->hwirq); } static void intc_mask_ack(struct irq_data *d) { - unsigned long mask = 1 << d->irq; - pr_debug("disable_and_ack: %d\n", d->irq); + unsigned long mask = 1 << d->hwirq; + + pr_debug("disable_and_ack: %ld\n", d->hwirq); out_be32(INTC_BASE + CIE, mask); out_be32(INTC_BASE + IAR, mask); } @@ -91,7 +93,7 @@ unsigned int get_irq(struct pt_regs *regs) * order to handle multiple interrupt controllers. It currently * is hardcoded to check for interrupts only on the first INTC. */ - irq = in_be32(INTC_BASE + IVR); + irq = in_be32(INTC_BASE + IVR) + NO_IRQ_OFFSET; pr_debug("get_irq: %d\n", irq); return irq; @@ -99,7 +101,7 @@ unsigned int get_irq(struct pt_regs *regs) void __init init_IRQ(void) { - u32 i, j, intr_type; + u32 i, intr_mask; struct device_node *intc = NULL; #ifdef CONFIG_SELFMOD_INTC unsigned int intc_baseaddr = 0; @@ -113,35 +115,24 @@ void __init init_IRQ(void) 0 }; #endif - const char * const intc_list[] = { - "xlnx,xps-intc-1.00.a", - NULL - }; - - for (j = 0; intc_list[j] != NULL; j++) { - intc = of_find_compatible_node(NULL, NULL, intc_list[j]); - if (intc) - break; - } + intc = of_find_compatible_node(NULL, NULL, "xlnx,xps-intc-1.00.a"); BUG_ON(!intc); - intc_baseaddr = be32_to_cpup(of_get_property(intc, - "reg", NULL)); + intc_baseaddr = be32_to_cpup(of_get_property(intc, "reg", NULL)); intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE); nr_irq = be32_to_cpup(of_get_property(intc, "xlnx,num-intr-inputs", NULL)); - intr_type = - be32_to_cpup(of_get_property(intc, - "xlnx,kind-of-intr", NULL)); - if (intr_type > (u32)((1ULL << nr_irq) - 1)) + intr_mask = + be32_to_cpup(of_get_property(intc, "xlnx,kind-of-intr", NULL)); + if (intr_mask > (u32)((1ULL << nr_irq) - 1)) printk(KERN_INFO " ERROR: Mismatch in kind-of-intr param\n"); #ifdef CONFIG_SELFMOD_INTC selfmod_function((int *) arr_func, intc_baseaddr); #endif - printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n", - intc_list[j], intc_baseaddr, nr_irq, intr_type); + printk(KERN_INFO "XPS intc #0 at 0x%08x, num_irq=%d, edge=0x%x\n", + intc_baseaddr, nr_irq, intr_mask); /* * Disable all external interrupts until they are @@ -155,8 +146,8 @@ void __init init_IRQ(void) /* Turn on the Master Enable. */ out_be32(intc_baseaddr + MER, MER_HIE | MER_ME); - for (i = 0; i < nr_irq; ++i) { - if (intr_type & (0x00000001 << i)) { + for (i = IRQ_OFFSET; i < (nr_irq + IRQ_OFFSET); ++i) { + if (intr_mask & (0x00000001 << (i - IRQ_OFFSET))) { irq_set_chip_and_handler_name(i, &intc_dev, handle_edge_irq, "edge"); irq_clear_status_flags(i, IRQ_LEVEL); @@ -165,5 +156,6 @@ void __init init_IRQ(void) handle_level_irq, "level"); irq_set_status_flags(i, IRQ_LEVEL); } + irq_get_irq_data(i)->hwirq = i - IRQ_OFFSET; } } diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index ce7ac8435d5c..bbebcae72c02 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -18,6 +18,7 @@ #include <linux/kernel_stat.h> #include <linux/irq.h> #include <linux/of_irq.h> +#include <linux/export.h> #include <asm/prom.h> @@ -32,11 +33,12 @@ void __irq_entry do_IRQ(struct pt_regs *regs) irq_enter(); irq = get_irq(regs); next_irq: - BUG_ON(irq == -1U); - generic_handle_irq(irq); + BUG_ON(!irq); + /* Substract 1 because of get_irq */ + generic_handle_irq(irq + IRQ_OFFSET - NO_IRQ_OFFSET); irq = get_irq(regs); - if (irq != -1U) { + if (irq) { pr_debug("next irq: %d\n", irq); ++concurrent_irq; goto next_irq; @@ -51,13 +53,13 @@ next_irq: intc without any cascades or any connection that's why mapping is 1:1 */ unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq) { - return hwirq; + return hwirq + IRQ_OFFSET; } EXPORT_SYMBOL_GPL(irq_create_mapping); unsigned int irq_create_of_mapping(struct device_node *controller, const u32 *intspec, unsigned int intsize) { - return intspec[0]; + return intspec[0] + IRQ_OFFSET; } EXPORT_SYMBOL_GPL(irq_create_of_mapping); diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c index 142426f631bb..f39257a5abcf 100644 --- a/arch/microblaze/kernel/module.c +++ b/arch/microblaze/kernel/module.c @@ -100,7 +100,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab, break; case R_MICROBLAZE_64_NONE: - pr_debug("R_MICROBLAZE_NONE\n"); + pr_debug("R_MICROBLAZE_64_NONE\n"); break; case R_MICROBLAZE_NONE: diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 95cc295976a7..7dcb5bfffb75 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -103,10 +103,12 @@ void cpu_idle(void) if (!idle) idle = default_idle; - tick_nohz_stop_sched_tick(1); + tick_nohz_idle_enter(); + rcu_idle_enter(); while (!need_resched()) idle(); - tick_nohz_restart_sched_tick(); + rcu_idle_exit(); + tick_nohz_idle_exit(); preempt_enable_no_resched(); schedule(); diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c index 977484add216..80d314e81901 100644 --- a/arch/microblaze/kernel/prom.c +++ b/arch/microblaze/kernel/prom.c @@ -122,7 +122,6 @@ void __init early_init_devtree(void *params) of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line); /* Scan memory nodes and rebuild MEMBLOCKs */ - memblock_init(); of_scan_flat_dt(early_init_dt_scan_root, NULL); of_scan_flat_dt(early_init_dt_scan_memory, NULL); @@ -130,7 +129,7 @@ void __init early_init_devtree(void *params) strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE); parse_early_param(); - memblock_analyze(); + memblock_allow_resize(); pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size()); diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c index bd8ccab5ceff..88a01636f785 100644 --- a/arch/microblaze/kernel/reset.c +++ b/arch/microblaze/kernel/reset.c @@ -19,50 +19,11 @@ static int handle; /* reset pin handle */ static unsigned int reset_val; -static int of_reset_gpio_handle(void) -{ - int ret; /* variable which stored handle reset gpio pin */ - struct device_node *root; /* root node */ - struct device_node *gpio; /* gpio node */ - struct gpio_chip *gc; - u32 flags; - const void *gpio_spec; - - /* find out root node */ - root = of_find_node_by_path("/"); - - /* give me handle for gpio node to be possible allocate pin */ - ret = of_parse_phandles_with_args(root, "hard-reset-gpios", - "#gpio-cells", 0, &gpio, &gpio_spec); - if (ret) { - pr_debug("%s: can't parse gpios property\n", __func__); - goto err0; - } - - gc = of_node_to_gpiochip(gpio); - if (!gc) { - pr_debug("%s: gpio controller %s isn't registered\n", - root->full_name, gpio->full_name); - ret = -ENODEV; - goto err1; - } - - ret = gc->of_xlate(gc, root, gpio_spec, &flags); - if (ret < 0) - goto err1; - - ret += gc->base; -err1: - of_node_put(gpio); -err0: - pr_debug("%s exited with status %d\n", __func__, ret); - return ret; -} - void of_platform_reset_gpio_probe(void) { int ret; - handle = of_reset_gpio_handle(); + handle = of_get_named_gpio(of_find_node_by_path("/"), + "hard-reset-gpios", 0); if (!gpio_is_valid(handle)) { printk(KERN_INFO "Skipping unavailable RESET gpio %d (%s)\n", diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index 0e654a12d37e..604cd9dd1333 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -145,32 +145,32 @@ void __init machine_early_init(const char *cmdline, unsigned int ram, setup_early_printk(NULL); #endif - eprintk("Ramdisk addr 0x%08x, ", ram); + printk("Ramdisk addr 0x%08x, ", ram); if (fdt) - eprintk("FDT at 0x%08x\n", fdt); + printk("FDT at 0x%08x\n", fdt); else - eprintk("Compiled-in FDT at 0x%08x\n", + printk("Compiled-in FDT at 0x%08x\n", (unsigned int)_fdt_start); #ifdef CONFIG_MTD_UCLINUX - eprintk("Found romfs @ 0x%08x (0x%08x)\n", + printk("Found romfs @ 0x%08x (0x%08x)\n", romfs_base, romfs_size); - eprintk("#### klimit %p ####\n", old_klimit); + printk("#### klimit %p ####\n", old_klimit); BUG_ON(romfs_size < 0); /* What else can we do? */ - eprintk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n", + printk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n", romfs_size, romfs_base, (unsigned)&_ebss); - eprintk("New klimit: 0x%08x\n", (unsigned)klimit); + printk("New klimit: 0x%08x\n", (unsigned)klimit); #endif #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR if (msr) - eprintk("!!!Your kernel has setup MSR instruction but " + printk("!!!Your kernel has setup MSR instruction but " "CPU don't have it %x\n", msr); #else if (!msr) - eprintk("!!!Your kernel not setup MSR instruction but " + printk("!!!Your kernel not setup MSR instruction but " "CPU have it %x\n", msr); #endif diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index 8789daa2a346..6a2b294ef6dc 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -380,3 +380,6 @@ ENTRY(sys_call_table) .long sys_clock_adjtime .long sys_syncfs .long sys_setns /* 375 */ + .long sys_sendmmsg + .long sys_process_vm_readv + .long sys_process_vm_writev diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index af74b1113aab..3cb0bf640135 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -243,7 +243,7 @@ static int timer_initialized; void __init time_init(void) { - u32 irq, i = 0; + u32 irq; u32 timer_num = 1; struct device_node *timer = NULL; const void *prop; @@ -258,33 +258,24 @@ void __init time_init(void) 0 }; #endif - const char * const timer_list[] = { - "xlnx,xps-timer-1.00.a", - NULL - }; - - for (i = 0; timer_list[i] != NULL; i++) { - timer = of_find_compatible_node(NULL, NULL, timer_list[i]); - if (timer) - break; - } + timer = of_find_compatible_node(NULL, NULL, "xlnx,xps-timer-1.00.a"); BUG_ON(!timer); timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL)); timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE); - irq = be32_to_cpup(of_get_property(timer, "interrupts", NULL)); + irq = irq_of_parse_and_map(timer, 0); timer_num = be32_to_cpup(of_get_property(timer, "xlnx,one-timer-only", NULL)); if (timer_num) { - eprintk(KERN_EMERG "Please enable two timers in HW\n"); + printk(KERN_EMERG "Please enable two timers in HW\n"); BUG(); } #ifdef CONFIG_SELFMOD_TIMER selfmod_function((int *) arr_func, timer_baseaddr); #endif - printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n", - timer_list[i], timer_baseaddr, irq); + printk(KERN_INFO "XPS timer #0 at 0x%08x, irq=%d\n", + timer_baseaddr, irq); /* If there is clock-frequency property than use it */ prop = of_get_property(timer, "clock-frequency", NULL); |