diff options
| author |   Jonas Aaberg <jonas.aberg@stericsson.com> | 2010-08-09 12:08:56 +0000 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2010-09-22 14:53:46 -0700 |
| commit | 698e4732e7c9cf9f1f3eac2b8cdce8d4fe2b90bd (patch) | |
| tree | 9716c813accd1f8f5f5fe6d4ad389fd64396c26d /drivers/dma/ste_dma40_ll.h | |
| parent | DMAENGINE: ste_dma40: fix possible use of uninitialized variable (diff) | |
| download | linux-dev-698e4732e7c9cf9f1f3eac2b8cdce8d4fe2b90bd.tar.xz linux-dev-698e4732e7c9cf9f1f3eac2b8cdce8d4fe2b90bd.zip | |
DMAENGINE: ste_dma40: rewrote LCLA entries allocation code
LLI allocation is now done on job level instead of channel level.
Previously the maximum length of a linked job in hw on a logical
channel was 8, since the LLIs where evenly divided. Now only
executing jobs have allocated LLIs which increase the length to
a maximum of 64 links in HW.
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ste_dma40_ll.h')
| -rw-r--r-- | drivers/dma/ste_dma40_ll.h | 51 |
1 files changed, 15 insertions, 36 deletions
diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h index a51ec187b5cf..37f81e84cd13 100644 --- a/drivers/dma/ste_dma40_ll.h +++ b/drivers/dma/ste_dma40_ll.h @@ -268,22 +268,6 @@ struct d40_def_lcsp { u32 lcsp1; }; -/** - * struct d40_lcla_elem - Info for one LCA element. - * - * @src_id: logical channel src id - * @dst_id: logical channel dst id - * @src: LCPA formated src parameters - * @dst: LCPA formated dst parameters - * - */ -struct d40_lcla_elem { - int src_id; - int dst_id; - struct d40_log_lli *src; - struct d40_log_lli *dst; -}; - /* Physical channels */ void d40_phy_cfg(struct stedma40_chan_cfg *cfg, @@ -324,38 +308,33 @@ void d40_phy_lli_write(void __iomem *virtbase, void d40_log_fill_lli(struct d40_log_lli *lli, dma_addr_t data, u32 data_size, - u32 lli_next_off, u32 reg_cfg, u32 data_width, - bool term_int, bool addr_inc); -int d40_log_sg_to_dev(struct d40_lcla_elem *lcla, - struct scatterlist *sg, +int d40_log_sg_to_dev(struct scatterlist *sg, int sg_len, struct d40_log_lli_bidir *lli, struct d40_def_lcsp *lcsp, u32 src_data_width, u32 dst_data_width, enum dma_data_direction direction, - dma_addr_t dev_addr, - int max_len, - int llis_per_log); - -int d40_log_lli_write(struct d40_log_lli_full *lcpa, - struct d40_log_lli *lcla_src, - struct d40_log_lli *lcla_dst, - struct d40_log_lli *lli_dst, - struct d40_log_lli *lli_src, - int llis_per_log); - -int d40_log_sg_to_lli(int lcla_id, - struct scatterlist *sg, + dma_addr_t dev_addr); + +int d40_log_sg_to_lli(struct scatterlist *sg, int sg_len, struct d40_log_lli *lli_sg, u32 lcsp13, /* src or dst*/ - u32 data_width, - int max_len, - int llis_per_log); + u32 data_width); + +void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa, + struct d40_log_lli *lli_dst, + struct d40_log_lli *lli_src, + int next); + +void d40_log_lli_lcla_write(struct d40_log_lli *lcla, + struct d40_log_lli *lli_dst, + struct d40_log_lli *lli_src, + int next); #endif /* STE_DMA40_LLI_H */ |