diff options
| author | Vinod Koul <vinod.koul@intel.com> | 2016-01-06 15:18:11 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-01-06 15:18:11 +0530 |
| commit | e3c373616a6ac4e18548b224f703f8d4c79a0c46 (patch) | |
| tree | 7633a93308f35a60ac1ef3508ff5af54e0e5b452 /drivers/dma | |
| parent | 9fd5ca5f04e4c735f66badb2e65aef30e8672247 (diff) | |
| parent | 2bb129ebb23d2dfec3cd9c22dc7defd681cfcd58 (diff) | |
| download | linux-e3c373616a6ac4e18548b224f703f8d4c79a0c46.tar.bz2 | |
Merge branch 'topic/ioatdma' into for-linus
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/dca.c | 2 | ||||
| -rw-r--r-- | drivers/dma/ioat/dma.h | 34 | ||||
| -rw-r--r-- | drivers/dma/ioat/registers.h | 16 |
3 files changed, 5 insertions, 47 deletions
diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c index 2cb7c308d5c7..0b9b6b07db9e 100644 --- a/drivers/dma/ioat/dca.c +++ b/drivers/dma/ioat/dca.c @@ -224,7 +224,7 @@ static u8 ioat_dca_get_tag(struct dca_provider *dca, return tag; } -static struct dca_ops ioat_dca_ops = { +static const struct dca_ops ioat_dca_ops = { .add_requester = ioat_dca_add_requester, .remove_requester = ioat_dca_remove_requester, .get_tag = ioat_dca_get_tag, diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index 8f4e607d5817..b8f48074789f 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -235,43 +235,11 @@ ioat_chan_by_index(struct ioatdma_device *ioat_dma, int index) return ioat_dma->idx[index]; } -static inline u64 ioat_chansts_32(struct ioatdma_chan *ioat_chan) -{ - u8 ver = ioat_chan->ioat_dma->version; - u64 status; - u32 status_lo; - - /* We need to read the low address first as this causes the - * chipset to latch the upper bits for the subsequent read - */ - status_lo = readl(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET_LOW(ver)); - status = readl(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET_HIGH(ver)); - status <<= 32; - status |= status_lo; - - return status; -} - -#if BITS_PER_LONG == 64 - static inline u64 ioat_chansts(struct ioatdma_chan *ioat_chan) { - u8 ver = ioat_chan->ioat_dma->version; - u64 status; - - /* With IOAT v3.3 the status register is 64bit. */ - if (ver >= IOAT_VER_3_3) - status = readq(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET(ver)); - else - status = ioat_chansts_32(ioat_chan); - - return status; + return readq(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET); } -#else -#define ioat_chansts ioat_chansts_32 -#endif - static inline u64 ioat_chansts_to_addr(u64 status) { return status & IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR; diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h index 909352f74c89..4994a3623aee 100644 --- a/drivers/dma/ioat/registers.h +++ b/drivers/dma/ioat/registers.h @@ -99,19 +99,9 @@ #define IOAT_DMA_COMP_V1 0x0001 /* Compatibility with DMA version 1 */ #define IOAT_DMA_COMP_V2 0x0002 /* Compatibility with DMA version 2 */ - -#define IOAT1_CHANSTS_OFFSET 0x04 /* 64-bit Channel Status Register */ -#define IOAT2_CHANSTS_OFFSET 0x08 /* 64-bit Channel Status Register */ -#define IOAT_CHANSTS_OFFSET(ver) ((ver) < IOAT_VER_2_0 \ - ? IOAT1_CHANSTS_OFFSET : IOAT2_CHANSTS_OFFSET) -#define IOAT1_CHANSTS_OFFSET_LOW 0x04 -#define IOAT2_CHANSTS_OFFSET_LOW 0x08 -#define IOAT_CHANSTS_OFFSET_LOW(ver) ((ver) < IOAT_VER_2_0 \ - ? IOAT1_CHANSTS_OFFSET_LOW : IOAT2_CHANSTS_OFFSET_LOW) -#define IOAT1_CHANSTS_OFFSET_HIGH 0x08 -#define IOAT2_CHANSTS_OFFSET_HIGH 0x0C -#define IOAT_CHANSTS_OFFSET_HIGH(ver) ((ver) < IOAT_VER_2_0 \ - ? IOAT1_CHANSTS_OFFSET_HIGH : IOAT2_CHANSTS_OFFSET_HIGH) +/* IOAT1 define left for i7300_idle driver to not fail compiling */ +#define IOAT1_CHANSTS_OFFSET 0x04 +#define IOAT_CHANSTS_OFFSET 0x08 /* 64-bit Channel Status Register */ #define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR (~0x3fULL) #define IOAT_CHANSTS_SOFT_ERR 0x10ULL #define IOAT_CHANSTS_UNAFFILIATED_ERR 0x8ULL |