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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
| commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
| tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/dma/idma64.h | |
| parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) | |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/dma/idma64.h')
| -rw-r--r-- | drivers/dma/idma64.h | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/dma/idma64.h b/drivers/dma/idma64.h index a4d99685a..f6aeff0af 100644 --- a/drivers/dma/idma64.h +++ b/drivers/dma/idma64.h @@ -16,6 +16,8 @@ #include <linux/spinlock.h> #include <linux/types.h> +#include <asm-generic/io-64-nonatomic-lo-hi.h> + #include "virt-dma.h" /* Channel registers */ @@ -166,19 +168,13 @@ static inline void idma64c_writel(struct idma64_chan *idma64c, int offset, static inline u64 idma64c_readq(struct idma64_chan *idma64c, int offset) { - u64 l, h; - - l = idma64c_readl(idma64c, offset); - h = idma64c_readl(idma64c, offset + 4); - - return l | (h << 32); + return lo_hi_readq(idma64c->regs + offset); } static inline void idma64c_writeq(struct idma64_chan *idma64c, int offset, u64 value) { - idma64c_writel(idma64c, offset, value); - idma64c_writel(idma64c, offset + 4, value >> 32); + lo_hi_writeq(value, idma64c->regs + offset); } #define channel_readq(idma64c, reg) \ @@ -217,7 +213,7 @@ static inline void idma64_writel(struct idma64 *idma64, int offset, u32 value) idma64_writel(idma64, IDMA64_##reg, (value)) /** - * struct idma64_chip - representation of DesignWare DMA controller hardware + * struct idma64_chip - representation of iDMA 64-bit controller hardware * @dev: struct device of the DMA controller * @irq: irq line * @regs: memory mapped I/O space |