diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 17:55:21 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 17:55:21 -0700 |
| commit | bbb20089a3275a19e475dbc21320c3742e3ca423 (patch) | |
| tree | 216fdc1cbef450ca688135c5b8969169482d9a48 /arch/blackfin/include/asm/dma.h | |
| parent | 3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff) | |
| parent | 657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff) | |
Merge branch 'dmaengine' into async-tx-next
Conflicts:
crypto/async_tx/async_xor.c
drivers/dma/ioat/dma_v2.h
drivers/dma/ioat/pci.c
drivers/md/raid5.c
Diffstat (limited to 'arch/blackfin/include/asm/dma.h')
| -rw-r--r-- | arch/blackfin/include/asm/dma.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h index e4f7b8043f02..c9a59622e23f 100644 --- a/arch/blackfin/include/asm/dma.h +++ b/arch/blackfin/include/asm/dma.h @@ -206,10 +206,16 @@ static inline unsigned long get_dma_curr_addr(unsigned int channel) static inline void set_dma_sg(unsigned int channel, struct dmasg *sg, int ndsize) { + /* Make sure the internal data buffers in the core are drained + * so that the DMA descriptors are completely written when the + * DMA engine goes to fetch them below. + */ + SSYNC(); + + dma_ch[channel].regs->next_desc_ptr = sg; dma_ch[channel].regs->cfg = (dma_ch[channel].regs->cfg & ~(0xf << 8)) | ((ndsize & 0xf) << 8); - dma_ch[channel].regs->next_desc_ptr = sg; } static inline int dma_channel_active(unsigned int channel) @@ -253,5 +259,7 @@ static inline void clear_dma_irqstat(unsigned int channel) void *dma_memcpy(void *dest, const void *src, size_t count); void *safe_dma_memcpy(void *dest, const void *src, size_t count); void blackfin_dma_early_init(void); +void early_dma_memcpy(void *dest, const void *src, size_t count); +void early_dma_memcpy_done(void); #endif |