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-rw-r--r--arch/arm/kernel/bios32.c28
-rw-r--r--arch/arm/kernel/calls.S1
-rw-r--r--arch/arm/kernel/ptrace.c4
-rw-r--r--arch/arm/kernel/relocate_kernel.S29
-rw-r--r--arch/arm/kernel/setup.c51
5 files changed, 101 insertions, 12 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index a2dd930d11e..e5747547b44 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -279,6 +279,25 @@ static void __devinit pci_fixup_cy82c693(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, pci_fixup_cy82c693);
+static void __init pci_fixup_it8152(struct pci_dev *dev)
+{
+ int i;
+ /* fixup for ITE 8152 devices */
+ /* FIXME: add defines for class 0x68000 and 0x80103 */
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
+ dev->class == 0x68000 ||
+ dev->class == 0x80103) {
+ for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+ dev->resource[i].start = 0;
+ dev->resource[i].end = 0;
+ dev->resource[i].flags = 0;
+ }
+ }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8152, pci_fixup_it8152);
+
+
+
void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
{
if (debug_pci)
@@ -292,9 +311,12 @@ void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
*/
static inline int pdev_bad_for_parity(struct pci_dev *dev)
{
- return (dev->vendor == PCI_VENDOR_ID_INTERG &&
- (dev->device == PCI_DEVICE_ID_INTERG_2000 ||
- dev->device == PCI_DEVICE_ID_INTERG_2010));
+ return ((dev->vendor == PCI_VENDOR_ID_INTERG &&
+ (dev->device == PCI_DEVICE_ID_INTERG_2000 ||
+ dev->device == PCI_DEVICE_ID_INTERG_2010)) ||
+ (dev->vendor == PCI_VENDOR_ID_ITE &&
+ dev->device == PCI_DEVICE_ID_ITE_8152));
+
}
/*
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index a98d0c933db..cecf658e362 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -361,6 +361,7 @@
CALL(sys_signalfd)
/* 350 */ CALL(sys_timerfd)
CALL(sys_eventfd)
+ CALL(sys_fallocate)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 78c9f1a3d41..5feee722ea9 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -731,10 +731,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = 0;
break;
- case PTRACE_DETACH:
- ret = ptrace_detach(child, data);
- break;
-
case PTRACE_GETREGS:
ret = ptrace_getregs(child, (void __user *)data);
break;
diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S
index 7baadae7cb2..062c111c572 100644
--- a/arch/arm/kernel/relocate_kernel.S
+++ b/arch/arm/kernel/relocate_kernel.S
@@ -7,6 +7,23 @@
.globl relocate_new_kernel
relocate_new_kernel:
+ /* Move boot params back to where the kernel expects them */
+
+ ldr r0,kexec_boot_params_address
+ teq r0,#0
+ beq 8f
+
+ ldr r1,kexec_boot_params_copy
+ mov r6,#KEXEC_BOOT_PARAMS_SIZE/4
+7:
+ ldr r5,[r1],#4
+ str r5,[r0],#4
+ subs r6,r6,#1
+ bne 7b
+
+8:
+ /* Boot params moved, now go on with the kernel */
+
ldr r0,kexec_indirection_page
ldr r1,kexec_start_address
@@ -50,7 +67,7 @@ relocate_new_kernel:
mov lr,r1
mov r0,#0
ldr r1,kexec_mach_type
- mov r2,#0
+ ldr r2,kexec_boot_params_address
mov pc,lr
.globl kexec_start_address
@@ -65,6 +82,16 @@ kexec_indirection_page:
kexec_mach_type:
.long 0x0
+ /* phy addr where new kernel will expect to find boot params */
+ .globl kexec_boot_params_address
+kexec_boot_params_address:
+ .long 0x0
+
+ /* phy addr where old kernel put a copy of orig boot params */
+ .globl kexec_boot_params_copy
+kexec_boot_params_copy:
+ .long 0x0
+
relocate_new_kernel_end:
.globl relocate_new_kernel_size
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 4de432ec903..bf56eb337df 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/smp.h>
#include <linux/fs.h>
+#include <linux/kexec.h>
#include <asm/cpu.h>
#include <asm/elf.h>
@@ -304,10 +305,23 @@ int cpu_architecture(void)
cpu_arch = (processor_id >> 16) & 7;
if (cpu_arch)
cpu_arch += CPU_ARCH_ARMv3;
- } else {
- /* the revised CPUID */
- cpu_arch = ((processor_id >> 12) & 0xf) - 0xb + CPU_ARCH_ARMv6;
- }
+ } else if ((processor_id & 0x000f0000) == 0x000f0000) {
+ unsigned int mmfr0;
+
+ /* Revised CPUID format. Read the Memory Model Feature
+ * Register 0 and check for VMSAv7 or PMSAv7 */
+ asm("mrc p15, 0, %0, c0, c1, 4"
+ : "=r" (mmfr0));
+ if ((mmfr0 & 0x0000000f) == 0x00000003 ||
+ (mmfr0 & 0x000000f0) == 0x00000030)
+ cpu_arch = CPU_ARCH_ARMv7;
+ else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
+ (mmfr0 & 0x000000f0) == 0x00000020)
+ cpu_arch = CPU_ARCH_ARMv6;
+ else
+ cpu_arch = CPU_ARCH_UNKNOWN;
+ } else
+ cpu_arch = CPU_ARCH_UNKNOWN;
return cpu_arch;
}
@@ -770,6 +784,23 @@ static int __init customize_machine(void)
}
arch_initcall(customize_machine);
+#ifdef CONFIG_KEXEC
+
+/* Physical addr of where the boot params should be for this machine */
+extern unsigned long kexec_boot_params_address;
+
+/* Physical addr of the buffer into which the boot params are copied */
+extern unsigned long kexec_boot_params_copy;
+
+/* Pointer to the boot params buffer, for manipulation and display */
+unsigned long kexec_boot_params;
+EXPORT_SYMBOL(kexec_boot_params);
+
+/* The buffer itself - make sure it is sized correctly */
+static unsigned long kexec_boot_params_buf[(KEXEC_BOOT_PARAMS_SIZE + 3) / 4];
+
+#endif
+
void __init setup_arch(char **cmdline_p)
{
struct tag *tags = (struct tag *)&init_tags;
@@ -788,6 +819,18 @@ void __init setup_arch(char **cmdline_p)
else if (mdesc->boot_params)
tags = phys_to_virt(mdesc->boot_params);
+#ifdef CONFIG_KEXEC
+ kexec_boot_params_copy = virt_to_phys(kexec_boot_params_buf);
+ kexec_boot_params = (unsigned long)kexec_boot_params_buf;
+ if (__atags_pointer) {
+ kexec_boot_params_address = __atags_pointer;
+ memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE);
+ } else if (mdesc->boot_params) {
+ kexec_boot_params_address = mdesc->boot_params;
+ memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE);
+ }
+#endif
+
/*
* If we have the old style parameters, convert them to
* a tag list.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 06:26:20 +0000