Commit 60658f8a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6524/1: GIC irq desciptor bug fix
  ARM: 6523/1: iop: ensure sched_clock() is notrace
  ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module.
  ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpers
  ARM: 6505/1: kprobes: Don't HAVE_KPROBES when CONFIG_THUMB2_KERNEL is selected
  ARM: 6508/1: vexpress: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL
  ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL
  ARM: 6504/1: Thumb-2: Fix long-distance conditional branches in head.S for Thumb-2.
  ARM: 6503/1: Thumb-2: Restore sensible zImage header layout for CONFIG_THUMB2_KERNEL
  ARM: 6502/1: Thumb-2: Fix CONFIG_THUMB2_KERNEL breakage in compressed/head.S
  ARM: 6501/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in mm/proc-v7.S
  ARM: 6500/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in kernel/head.S
  ARM: 6499/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in bootp/init.S
  ARM: 6498/1: vfp: Correct data alignment for CONFIG_THUMB2_KERNEL
  ARM: 6497/1: kexec: Correct data alignment for CONFIG_THUMB2_KERNEL
  ARM: 6496/1: GIC: Do not try to register more then NR_IRQS interrupts
  ARM: cns3xxx: Fix build with CONFIG_PCI=y
parents 771f8bc7 f444a57c
......@@ -9,7 +9,7 @@ config ARM
select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
select HAVE_ARCH_KGDB
select HAVE_KPROBES if (!XIP_KERNEL)
select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
select HAVE_KRETPROBES if (HAVE_KPROBES)
select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
......
......@@ -70,12 +70,7 @@ else
$(obj)/uImage: LOADADDR=$(ZRELADDR)
endif
ifeq ($(CONFIG_THUMB2_KERNEL),y)
# Set bit 0 to 1 so that "mov pc, rx" switches to Thumb-2 mode
$(obj)/uImage: STARTADDR=$(shell echo $(LOADADDR) | sed -e "s/.$$/1/")
else
$(obj)/uImage: STARTADDR=$(LOADADDR)
endif
$(obj)/uImage: $(obj)/zImage FORCE
$(call if_changed,uimage)
......
......@@ -73,6 +73,8 @@ move: ldmia r4!, {r7 - r10} @ move 32-bytes at a time
.size _start, . - _start
.align
.type data,#object
data: .word initrd_start @ source initrd address
.word initrd_phys @ destination initrd address
......
......@@ -125,9 +125,13 @@ wait: mrc p14, 0, pc, c0, c1, 0
* sort out different calling conventions
*/
.align
.arm @ Always enter in ARM state
start:
.type start,#function
.rept 8
THUMB( adr r12, BSYM(1f) )
THUMB( bx r12 )
THUMB( .rept 6 )
ARM( .rept 8 )
mov r0, r0
.endr
......@@ -135,6 +139,7 @@ start:
.word 0x016f2818 @ Magic numbers to help the loader
.word start @ absolute load/run zImage address
.word _edata @ zImage end address
THUMB( .thumb )
1: mov r7, r1 @ save architecture ID
mov r8, r2 @ save atags pointer
......@@ -174,7 +179,8 @@ not_angel:
ldr sp, [r0, #28]
#ifdef CONFIG_AUTO_ZRELADDR
@ determine final kernel image address
and r4, pc, #0xf8000000
mov r4, pc
and r4, r4, #0xf8000000
add r4, r4, #TEXT_OFFSET
#else
ldr r4, =zreladdr
......@@ -445,7 +451,8 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size
*/
mov r1, #0x1e
orr r1, r1, #3 << 10
mov r2, pc, lsr #20
mov r2, pc
mov r2, r2, lsr #20
orr r1, r1, r2, lsl #20
add r0, r3, r2, lsl #2
str r1, [r0], #4
......
......@@ -146,9 +146,15 @@ static int gic_set_cpu(unsigned int irq, const struct cpumask *mask_val)
unsigned int shift = (irq % 4) * 8;
unsigned int cpu = cpumask_first(mask_val);
u32 val;
struct irq_desc *desc;
spin_lock(&irq_controller_lock);
irq_desc[irq].node = cpu;
desc = irq_to_desc(irq);
if (desc == NULL) {
spin_unlock(&irq_controller_lock);
return -EINVAL;
}
desc->node = cpu;
val = readl(reg) & ~(0xff << shift);
val |= 1 << (cpu + shift);
writel(val, reg);
......@@ -210,7 +216,7 @@ void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
void __init gic_dist_init(unsigned int gic_nr, void __iomem *base,
unsigned int irq_start)
{
unsigned int max_irq, i;
unsigned int gic_irqs, irq_limit, i;
u32 cpumask = 1 << smp_processor_id();
if (gic_nr >= MAX_GIC_NR)
......@@ -226,47 +232,49 @@ void __init gic_dist_init(unsigned int gic_nr, void __iomem *base,
/*
* Find out how many interrupts are supported.
*/
max_irq = readl(base + GIC_DIST_CTR) & 0x1f;
max_irq = (max_irq + 1) * 32;
/*
* The GIC only supports up to 1020 interrupt sources.
* Limit this to either the architected maximum, or the
* platform maximum.
*/
if (max_irq > max(1020, NR_IRQS))
max_irq = max(1020, NR_IRQS);
gic_irqs = readl(base + GIC_DIST_CTR) & 0x1f;
gic_irqs = (gic_irqs + 1) * 32;
if (gic_irqs > 1020)
gic_irqs = 1020;
/*
* Set all global interrupts to be level triggered, active low.
*/
for (i = 32; i < max_irq; i += 16)
for (i = 32; i < gic_irqs; i += 16)
writel(0, base + GIC_DIST_CONFIG + i * 4 / 16);
/*
* Set all global interrupts to this CPU only.
*/
for (i = 32; i < max_irq; i += 4)
for (i = 32; i < gic_irqs; i += 4)
writel(cpumask, base + GIC_DIST_TARGET + i * 4 / 4);
/*
* Set priority on all global interrupts.
*/
for (i = 32; i < max_irq; i += 4)
for (i = 32; i < gic_irqs; i += 4)
writel(0xa0a0a0a0, base + GIC_DIST_PRI + i * 4 / 4);
/*
* Disable all interrupts. Leave the PPI and SGIs alone
* as these enables are banked registers.
*/
for (i = 32; i < max_irq; i += 32)
for (i = 32; i < gic_irqs; i += 32)
writel(0xffffffff, base + GIC_DIST_ENABLE_CLEAR + i * 4 / 32);
/*
* Limit number of interrupts registered to the platform maximum
*/
irq_limit = gic_data[gic_nr].irq_offset + gic_irqs;
if (WARN_ON(irq_limit > NR_IRQS))
irq_limit = NR_IRQS;
/*
* Setup the Linux IRQ subsystem.
*/
for (i = irq_start; i < gic_data[gic_nr].irq_offset + max_irq; i++) {
for (i = irq_start; i < irq_limit; i++) {
set_irq_chip(i, &gic_chip);
set_irq_chip_data(i, &gic_data[gic_nr]);
set_irq_handler(i, handle_level_irq);
......
......@@ -911,7 +911,7 @@ __kuser_cmpxchg: @ 0xffff0fc0
* A special ghost syscall is used for that (see traps.c).
*/
stmfd sp!, {r7, lr}
ldr r7, =1f @ it's 20 bits
ldr r7, 1f @ it's 20 bits
swi __ARM_NR_cmpxchg
ldmfd sp!, {r7, pc}
1: .word __ARM_NR_cmpxchg
......
......@@ -85,9 +85,11 @@ ENTRY(stext)
mrc p15, 0, r9, c0, c0 @ get processor id
bl __lookup_processor_type @ r5=procinfo r9=cpuid
movs r10, r5 @ invalid processor (r5=0)?
THUMB( it eq ) @ force fixup-able long branch encoding
beq __error_p @ yes, error 'p'
bl __lookup_machine_type @ r5=machinfo
movs r8, r5 @ invalid machine (r5=0)?
THUMB( it eq ) @ force fixup-able long branch encoding
beq __error_a @ yes, error 'a'
bl __vet_atags
#ifdef CONFIG_SMP_ON_UP
......@@ -262,6 +264,7 @@ __create_page_tables:
mov pc, lr
ENDPROC(__create_page_tables)
.ltorg
.align
__enable_mmu_loc:
.long .
.long __enable_mmu
......@@ -282,6 +285,7 @@ ENTRY(secondary_startup)
bl __lookup_processor_type
movs r10, r5 @ invalid processor?
moveq r0, #'p' @ yes, error 'p'
THUMB( it eq ) @ force fixup-able long branch encoding
beq __error_p
/*
......@@ -308,6 +312,8 @@ ENTRY(__secondary_switched)
b secondary_start_kernel
ENDPROC(__secondary_switched)
.align
.type __secondary_data, %object
__secondary_data:
.long .
......@@ -413,6 +419,7 @@ __fixup_smp_on_up:
mov pc, lr
ENDPROC(__fixup_smp)
.align
1: .word .
.word __smpalt_begin
.word __smpalt_end
......
......@@ -59,6 +59,8 @@ relocate_new_kernel:
ldr r2,kexec_boot_atags
mov pc,lr
.align
.globl kexec_start_address
kexec_start_address:
.long 0x0
......
......@@ -369,7 +369,7 @@ static int __init cns3xxx_pcie_init(void)
{
int i;
hook_fault_code(16 + 6, cns3xxx_pcie_abort_handler, SIGBUS,
hook_fault_code(16 + 6, cns3xxx_pcie_abort_handler, SIGBUS, 0,
"imprecise external abort");
for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) {
......
......@@ -35,5 +35,6 @@ pen: ldr r7, [r6]
*/
b secondary_startup
.align
1: .long .
.long pen_release
......@@ -35,5 +35,6 @@ pen: ldr r7, [r6]
*/
b secondary_startup
.align
1: .long .
.long pen_release
......@@ -381,7 +381,7 @@ __v7_ca9mp_proc_info:
PMD_SECT_XN | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __v7_ca9mp_setup
W(b) __v7_ca9mp_setup
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_TLS
......@@ -413,7 +413,7 @@ __v7_proc_info:
PMD_SECT_XN | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __v7_setup
W(b) __v7_setup
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_TLS
......
......@@ -18,6 +18,7 @@
#include <linux/time.h>
#include <linux/init.h>
#include <linux/timex.h>
#include <linux/sched.h>
#include <linux/io.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
......@@ -36,7 +37,7 @@
/*
* IOP clocksource (free-running timer 1).
*/
static cycle_t iop_clocksource_read(struct clocksource *unused)
static cycle_t notrace iop_clocksource_read(struct clocksource *unused)
{
return 0xffffffffu - read_tcr1();
}
......
......@@ -206,6 +206,7 @@ ENTRY(vfp_save_state)
mov pc, lr
ENDPROC(vfp_save_state)
.align
last_VFP_context_address:
.word last_VFP_context
......
......@@ -70,6 +70,7 @@ void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
va_end(args);
}
}
EXPORT_SYMBOL(soc_pcmcia_debug);
#endif
......
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