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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:13:46 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:13:46 -0700
commite00eea42f24550beb9940e641402450f695c888a (patch)
tree2a83ae36db1d1bf0dd8b8be46e41f17b9dd459b5
parentbc90ba093af2e5022b9d055a2148b54a6aa35bc9 (diff)
parent093d0faf57e59feee224217273f944e10e4e3562 (diff)
downloadlinux-e00eea42f24550beb9940e641402450f695c888a.tar.gz
Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32: [AVR32] Define ARCH_KMALLOC_MINALIGN to L1_CACHE_BYTES [AVR32] STK1000: Set SPI_MODE_3 in the ltv350qv board info [AVR32] gpio_*_cansleep() fix [AVR32] ratelimit segfault reporting rate
-rw-r--r--arch/avr32/boards/atstk1000/atstk1002.c1
-rw-r--r--arch/avr32/mm/fault.c2
-rw-r--r--include/asm-avr32/arch-at32ap/gpio.h2
-rw-r--r--include/asm-avr32/cache.h9
4 files changed, 13 insertions, 1 deletions
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index fe1dbe2e28f..e253e86a1a3 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -42,6 +42,7 @@ static struct spi_board_info spi0_board_info[] __initdata = {
.modalias = "ltv350qv",
.max_speed_hz = 16000000,
.chip_select = 1,
+ .mode = SPI_MODE_3,
},
};
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index e011f1ce187..4b2495285d9 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -158,7 +158,7 @@ bad_area:
up_read(&mm->mmap_sem);
if (user_mode(regs)) {
- if (exception_trace)
+ if (exception_trace && printk_ratelimit())
printk("%s%s[%d]: segfault at %08lx pc %08lx "
"sp %08lx ecr %lu\n",
is_init(tsk) ? KERN_EMERG : KERN_INFO,
diff --git a/include/asm-avr32/arch-at32ap/gpio.h b/include/asm-avr32/arch-at32ap/gpio.h
index 80a21aa9ae7..af7f9535bab 100644
--- a/include/asm-avr32/arch-at32ap/gpio.h
+++ b/include/asm-avr32/arch-at32ap/gpio.h
@@ -14,6 +14,8 @@ int gpio_direction_output(unsigned int gpio, int value);
int gpio_get_value(unsigned int gpio);
void gpio_set_value(unsigned int gpio, int value);
+#include <asm-generic/gpio.h> /* cansleep wrappers */
+
static inline int gpio_to_irq(unsigned int gpio)
{
return gpio + GPIO_IRQ_BASE;
diff --git a/include/asm-avr32/cache.h b/include/asm-avr32/cache.h
index dabb955f3c0..d3cf35ab11a 100644
--- a/include/asm-avr32/cache.h
+++ b/include/asm-avr32/cache.h
@@ -4,6 +4,15 @@
#define L1_CACHE_SHIFT 5
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+/*
+ * Memory returned by kmalloc() may be used for DMA, so we must make
+ * sure that all such allocations are cache aligned. Otherwise,
+ * unrelated code may cause parts of the buffer to be read into the
+ * cache before the transfer is done, causing old data to be seen by
+ * the CPU.
+ */
+#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
+
#ifndef __ASSEMBLER__
struct cache_info {
unsigned int ways;