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authorLinus Torvalds <torvalds@linux-foundation.org>2009-04-24 08:45:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-24 08:45:53 -0700
commit9fe9293d14e8418f29136216f0180f47270a916a (patch)
tree62e4efbb4833940a6eafd98d950275c5b3f08c66 /arch/m68knommu/kernel
parenta4277bf122e907e4fec509fc0bd9bf5fde30b14e (diff)
parent64f68416e794d59a42ddffdf1c5b7f026a4f23d5 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: update the default config for the ColdFire 5407C3 board m68knommu: update the default config for the ColdFire 5307C3 board m68knommu: update the default config for the ColdFire 5257EVB board m68knommu: update the default config for the ColdFire 5249EVB. m68knommu: add a defconfig for the ColdFire M5272C3 board m68knommu: update the defconfig for the ColdFire 5208evb board m68knommu: fix DMA support for ColdFire m68knommu: remove unused kernel stats offsets m68knommu: fix missing .data.cacheline_aligned section m68knommu: Fixed GPIO pin initialization for CONFIG_M5271 FEC.
Diffstat (limited to 'arch/m68knommu/kernel')
-rw-r--r--arch/m68knommu/kernel/asm-offsets.c6
-rw-r--r--arch/m68knommu/kernel/dma.c37
-rw-r--r--arch/m68knommu/kernel/vmlinux.lds.S2
3 files changed, 36 insertions, 9 deletions
diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c
index c785d07c02c..f500dd6935d 100644
--- a/arch/m68knommu/kernel/asm-offsets.c
+++ b/arch/m68knommu/kernel/asm-offsets.c
@@ -30,9 +30,6 @@ int main(void)
DEFINE(TASK_MM, offsetof(struct task_struct, mm));
DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
- /* offsets into the kernel_stat struct */
- DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
-
/* offsets into the irq_cpustat_t struct */
DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
@@ -69,9 +66,6 @@ int main(void)
DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4);
#endif
- /* offsets into the kernel_stat struct */
- DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
-
/* signal defines */
DEFINE(SIGSEGV, SIGSEGV);
DEFINE(SEGV_MAPERR, SEGV_MAPERR);
diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68knommu/kernel/dma.c
index 93612580663..aaf38bbbb6c 100644
--- a/arch/m68knommu/kernel/dma.c
+++ b/arch/m68knommu/kernel/dma.c
@@ -7,10 +7,9 @@
#include <linux/types.h>
#include <linux/mm.h>
-#include <linux/string.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
-#include <asm/io.h>
+#include <asm/cacheflush.h>
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
@@ -36,7 +35,39 @@ void dma_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir)
+void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir)
{
+ switch (dir) {
+ case DMA_TO_DEVICE:
+ flush_dcache_range(handle, size);
+ break;
+ case DMA_FROM_DEVICE:
+ /* Should be clear already */
+ break;
+ default:
+ if (printk_ratelimit())
+ printk("dma_sync_single_for_device: unsupported dir %u\n", dir);
+ break;
+ }
+}
+
+EXPORT_SYMBOL(dma_sync_single_for_device);
+dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size,
+ enum dma_data_direction dir)
+{
+ dma_addr_t handle = virt_to_phys(addr);
+ flush_dcache_range(handle, size);
+ return handle;
}
+EXPORT_SYMBOL(dma_map_single);
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
+{
+ dma_addr_t handle = page_to_phys(page) + offset;
+ dma_sync_single_for_device(dev, handle, size, dir);
+ return handle;
+}
+EXPORT_SYMBOL(dma_map_page);
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index 69ba9b10767..b7fe505e358 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -147,6 +147,8 @@ SECTIONS {
. = ALIGN(4);
_sdata = . ;
DATA_DATA
+ . = ALIGN(32);
+ *(.data.cacheline_aligned)
. = ALIGN(8192) ;
*(.data.init_task)
_edata = . ;