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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-24 08:45:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-24 08:45:53 -0700 |
commit | 9fe9293d14e8418f29136216f0180f47270a916a (patch) | |
tree | 62e4efbb4833940a6eafd98d950275c5b3f08c66 /arch/m68knommu/kernel | |
parent | a4277bf122e907e4fec509fc0bd9bf5fde30b14e (diff) | |
parent | 64f68416e794d59a42ddffdf1c5b7f026a4f23d5 (diff) | |
download | op-kernel-dev-9fe9293d14e8418f29136216f0180f47270a916a.zip op-kernel-dev-9fe9293d14e8418f29136216f0180f47270a916a.tar.gz |
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.c | 6 | ||||
-rw-r--r-- | arch/m68knommu/kernel/dma.c | 37 | ||||
-rw-r--r-- | arch/m68knommu/kernel/vmlinux.lds.S | 2 |
3 files changed, 36 insertions, 9 deletions
diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c index c785d07..f500dd6 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 9361258..aaf38bb 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 69ba9b1..b7fe505 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 = . ; |