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-rw-r--r--arch/mn10300/kernel/entry.S3
-rw-r--r--arch/mn10300/kernel/gdb-io-serial.c2
-rw-r--r--arch/mn10300/kernel/mn10300-serial.c5
-rw-r--r--arch/mn10300/kernel/setup.c2
-rw-r--r--arch/mn10300/kernel/vmlinux.lds.S22
5 files changed, 20 insertions, 14 deletions
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index b7cbb1487af4..62fba8aa9b6e 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -180,6 +180,7 @@ ENTRY(resume_userspace)
#ifdef CONFIG_PREEMPT
ENTRY(resume_kernel)
+ __cli
mov (TI_preempt_count,a2),d0 # non-zero preempt_count ?
cmp 0,d0
bne restore_all
@@ -190,7 +191,7 @@ need_resched:
mov (REG_EPSW,fp),d0
and EPSW_IM,d0
cmp EPSW_IM_7,d0 # interrupts off (exception path) ?
- beq restore_all
+ bne restore_all
call preempt_schedule_irq[],0
jmp need_resched
#endif
diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c
index 9a6d4e8ebe73..11584c51acd9 100644
--- a/arch/mn10300/kernel/gdb-io-serial.c
+++ b/arch/mn10300/kernel/gdb-io-serial.c
@@ -99,6 +99,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
try_again:
/* pull chars out of the buffer */
ix = gdbstub_rx_outp;
+ barrier();
if (ix == gdbstub_rx_inp) {
if (nonblock)
return -EAGAIN;
@@ -110,6 +111,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
ch = gdbstub_rx_buffer[ix++];
st = gdbstub_rx_buffer[ix++];
+ barrier();
gdbstub_rx_outp = ix & 0x00000fff;
if (st & UART_LSR_BI) {
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index aa07d0cd1905..59b9c4bf9583 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -566,6 +566,11 @@ static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port)
{
_enter("%s", port->name);
+ if (!port->uart.info || !port->uart.info->port.tty) {
+ mn10300_serial_dis_tx_intr(port);
+ return;
+ }
+
if (uart_tx_stopped(&port->uart) ||
uart_circ_empty(&port->uart.info->xmit))
mn10300_serial_dis_tx_intr(port);
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index 017121ce896f..e1d88ab51008 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -161,7 +161,7 @@ void __init setup_arch(char **cmdline_p)
reserve the page it is occupying. */
if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS &&
CONFIG_INTERRUPT_VECTOR_BASE < memory_end)
- reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, 1,
+ reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE,
BOOTMEM_DEFAULT);
reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size,
diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S
index a3e80f444f55..b8259668f7dc 100644
--- a/arch/mn10300/kernel/vmlinux.lds.S
+++ b/arch/mn10300/kernel/vmlinux.lds.S
@@ -11,6 +11,7 @@
#define __VMLINUX_LDS__
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
+#include <asm/page.h>
OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin")
OUTPUT_ARCH(mn10300)
@@ -55,13 +56,13 @@ SECTIONS
CONSTRUCTORS
}
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
__nosave_begin = .;
.data_nosave : { *(.data.nosave) }
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
__nosave_end = .;
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
.data.page_aligned : { *(.data.idt) }
. = ALIGN(32);
@@ -78,7 +79,7 @@ SECTIONS
.data.init_task : { *(.data.init_task) }
/* might get freed after init */
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
__smp_locks = .;
*(.smp_locks)
@@ -86,7 +87,7 @@ SECTIONS
}
/* will be freed after init */
- . = ALIGN(4096); /* Init code and data */
+ . = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
@@ -120,17 +121,14 @@ SECTIONS
.exit.data : { *(.exit.data) }
#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
__initramfs_start = .;
.init.ramfs : { *(.init.ramfs) }
__initramfs_end = .;
#endif
- . = ALIGN(32);
- __per_cpu_start = .;
- .data.percpu : { *(.data.percpu) }
- __per_cpu_end = .;
- . = ALIGN(4096);
+ PERCPU(32)
+ . = ALIGN(PAGE_SIZE);
__init_end = .;
/* freed after init ends here */
@@ -145,7 +143,7 @@ SECTIONS
_end = . ;
/* This is where the kernel creates the early boot page tables */
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
pg0 = .;
/* Sections to be discarded */