Commit 4690dfa8 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Wire-up new system calls
  microblaze: Remove NO_IRQ from architecture
  input: xilinx_ps2: Don't use NO_IRQ
  block: xsysace: Don't use NO_IRQ
  microblaze: Trivial asm fix
  microblaze: Fix debug message in module
  microblaze: Remove eprintk macro
  microblaze: Send CR before LF for early console
  microblaze: Change NO_IRQ to 0
  microblaze: Use irq_of_parse_and_map for timer
  microblaze: intc: Change variable name
  microblaze: Use of_find_compatible_node for timer and intc
  microblaze: Add __cmpdi2
  microblaze: Synchronize __pa __va macros
parents c2e08e7c f3aef251
......@@ -9,7 +9,14 @@
#ifndef _ASM_MICROBLAZE_IRQ_H
#define _ASM_MICROBLAZE_IRQ_H
#define NR_IRQS 32
/*
* Linux IRQ# is currently offset by one to map to the hardware
* irq number. So hardware IRQ0 maps to Linux irq 1.
*/
#define NO_IRQ_OFFSET 1
#define IRQ_OFFSET NO_IRQ_OFFSET
#define NR_IRQS (32 + IRQ_OFFSET)
#include <asm-generic/irq.h>
/* This type is the placeholder for a hardware interrupt number. It has to
......@@ -20,8 +27,6 @@ typedef unsigned long irq_hw_number_t;
extern unsigned int nr_irq;
#define NO_IRQ (-1)
struct pt_regs;
extern void do_IRQ(struct pt_regs *regs);
......
......@@ -174,15 +174,8 @@ extern int page_is_ram(unsigned long pfn);
#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr)))
# ifndef CONFIG_MMU
# define __pa(vaddr) ((unsigned long) (vaddr))
# define __va(paddr) ((void *) (paddr))
# else /* CONFIG_MMU */
# define __pa(x) __virt_to_phys((unsigned long)(x))
# define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
# endif /* CONFIG_MMU */
# define __pa(x) __virt_to_phys((unsigned long)(x))
# define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
/* Convert between virtual and physical address for MMU. */
/* Handle MicroBlaze processor with virtual memory. */
......
......@@ -26,12 +26,6 @@ int setup_early_printk(char *opt);
void remap_early_printk(void);
void disable_early_printk(void);
#if defined(CONFIG_EARLY_PRINTK)
#define eprintk early_printk
#else
#define eprintk printk
#endif
void heartbeat(void);
void setup_heartbeat(void);
......
......@@ -391,8 +391,11 @@
#define __NR_clock_adjtime 373
#define __NR_syncfs 374
#define __NR_setns 375
#define __NR_sendmmsg 376
#define __NR_process_vm_readv 377
#define __NR_process_vm_writev 378
#define __NR_syscalls 376
#define __NR_syscalls 379
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
......
......@@ -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++;
}
}
......
......@@ -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) */
......
......@@ -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;
}
}
......@@ -33,11 +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;
......@@ -52,13 +53,13 @@ void __irq_entry do_IRQ(struct pt_regs *regs)
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);
......@@ -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:
......
......@@ -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
......
......@@ -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
......@@ -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);
......
......@@ -20,6 +20,7 @@ lib-y += uaccess_old.o
lib-y += ashldi3.o
lib-y += ashrdi3.o
lib-y += cmpdi2.o
lib-y += divsi3.o
lib-y += lshrdi3.o
lib-y += modsi3.o
......
#include <linux/module.h>
#include "libgcc.h"
word_type __cmpdi2(long long a, long long b)
{
const DWunion au = {
.ll = a
};
const DWunion bu = {
.ll = b
};
if (au.s.high < bu.s.high)
return 0;
else if (au.s.high > bu.s.high)
return 2;
if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
return 0;
else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
return 2;
return 1;
}
EXPORT_SYMBOL(__cmpdi2);
......@@ -242,7 +242,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
line, pin);
virq = irq_create_mapping(NULL, line);
if (virq != NO_IRQ)
if (virq)
irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
} else {
pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
......@@ -253,7 +253,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
oirq.size);
}
if (virq == NO_IRQ) {
if (!virq) {
pr_debug(" Failed to map !\n");
return -1;
}
......
......@@ -456,7 +456,7 @@ static inline void ace_fsm_yieldirq(struct ace_device *ace)
{
dev_dbg(ace->dev, "ace_fsm_yieldirq()\n");
if (ace->irq == NO_IRQ)
if (!ace->irq)
/* No IRQ assigned, so need to poll */
tasklet_schedule(&ace->fsm_tasklet);
ace->fsm_continue_flag = 0;
......@@ -1034,12 +1034,12 @@ static int __devinit ace_setup(struct ace_device *ace)
ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ);
/* Now we can hook up the irq handler */
if (ace->irq != NO_IRQ) {
if (ace->irq) {
rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace);
if (rc) {
/* Failure - fall back to polled mode */
dev_err(ace->dev, "request_irq failed\n");
ace->irq = NO_IRQ;
ace->irq = 0;
}
}
......@@ -1086,7 +1086,7 @@ static void __devexit ace_teardown(struct ace_device *ace)
tasklet_kill(&ace->fsm_tasklet);
if (ace->irq != NO_IRQ)
if (ace->irq)
free_irq(ace->irq, ace);
iounmap(ace->baseaddr);
......@@ -1156,7 +1156,7 @@ static int __devinit ace_probe(struct platform_device *dev)
resource_size_t physaddr = 0;
int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */
u32 id = dev->id;
int irq = NO_IRQ;
int irq = 0;
int i;
dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
......
......@@ -253,7 +253,7 @@ static int __devinit xps2_of_probe(struct platform_device *ofdev)
}
/* Get IRQ for the device */
if (of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq) == NO_IRQ) {
if (!of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq)) {
dev_err(dev, "no IRQ found\n");
return -ENODEV;
}
......
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