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@@ -39,106 +39,106 @@
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#include "../dmaengine.h"
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/* Register/Descriptor Offsets */
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-#define XILINX_VDMA_MM2S_CTRL_OFFSET 0x0000
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-#define XILINX_VDMA_S2MM_CTRL_OFFSET 0x0030
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+#define XILINX_DMA_MM2S_CTRL_OFFSET 0x0000
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+#define XILINX_DMA_S2MM_CTRL_OFFSET 0x0030
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#define XILINX_VDMA_MM2S_DESC_OFFSET 0x0050
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#define XILINX_VDMA_S2MM_DESC_OFFSET 0x00a0
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/* Control Registers */
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-#define XILINX_VDMA_REG_DMACR 0x0000
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-#define XILINX_VDMA_DMACR_DELAY_MAX 0xff
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-#define XILINX_VDMA_DMACR_DELAY_SHIFT 24
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-#define XILINX_VDMA_DMACR_FRAME_COUNT_MAX 0xff
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-#define XILINX_VDMA_DMACR_FRAME_COUNT_SHIFT 16
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-#define XILINX_VDMA_DMACR_ERR_IRQ BIT(14)
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-#define XILINX_VDMA_DMACR_DLY_CNT_IRQ BIT(13)
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-#define XILINX_VDMA_DMACR_FRM_CNT_IRQ BIT(12)
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-#define XILINX_VDMA_DMACR_MASTER_SHIFT 8
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-#define XILINX_VDMA_DMACR_FSYNCSRC_SHIFT 5
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-#define XILINX_VDMA_DMACR_FRAMECNT_EN BIT(4)
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-#define XILINX_VDMA_DMACR_GENLOCK_EN BIT(3)
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-#define XILINX_VDMA_DMACR_RESET BIT(2)
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-#define XILINX_VDMA_DMACR_CIRC_EN BIT(1)
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-#define XILINX_VDMA_DMACR_RUNSTOP BIT(0)
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-#define XILINX_VDMA_DMACR_FSYNCSRC_MASK GENMASK(6, 5)
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-
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-#define XILINX_VDMA_REG_DMASR 0x0004
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-#define XILINX_VDMA_DMASR_EOL_LATE_ERR BIT(15)
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-#define XILINX_VDMA_DMASR_ERR_IRQ BIT(14)
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-#define XILINX_VDMA_DMASR_DLY_CNT_IRQ BIT(13)
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-#define XILINX_VDMA_DMASR_FRM_CNT_IRQ BIT(12)
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-#define XILINX_VDMA_DMASR_SOF_LATE_ERR BIT(11)
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-#define XILINX_VDMA_DMASR_SG_DEC_ERR BIT(10)
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-#define XILINX_VDMA_DMASR_SG_SLV_ERR BIT(9)
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-#define XILINX_VDMA_DMASR_EOF_EARLY_ERR BIT(8)
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-#define XILINX_VDMA_DMASR_SOF_EARLY_ERR BIT(7)
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-#define XILINX_VDMA_DMASR_DMA_DEC_ERR BIT(6)
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-#define XILINX_VDMA_DMASR_DMA_SLAVE_ERR BIT(5)
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-#define XILINX_VDMA_DMASR_DMA_INT_ERR BIT(4)
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-#define XILINX_VDMA_DMASR_IDLE BIT(1)
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-#define XILINX_VDMA_DMASR_HALTED BIT(0)
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-#define XILINX_VDMA_DMASR_DELAY_MASK GENMASK(31, 24)
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-#define XILINX_VDMA_DMASR_FRAME_COUNT_MASK GENMASK(23, 16)
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-
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-#define XILINX_VDMA_REG_CURDESC 0x0008
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-#define XILINX_VDMA_REG_TAILDESC 0x0010
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-#define XILINX_VDMA_REG_REG_INDEX 0x0014
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-#define XILINX_VDMA_REG_FRMSTORE 0x0018
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-#define XILINX_VDMA_REG_THRESHOLD 0x001c
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-#define XILINX_VDMA_REG_FRMPTR_STS 0x0024
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-#define XILINX_VDMA_REG_PARK_PTR 0x0028
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-#define XILINX_VDMA_PARK_PTR_WR_REF_SHIFT 8
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-#define XILINX_VDMA_PARK_PTR_RD_REF_SHIFT 0
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-#define XILINX_VDMA_REG_VDMA_VERSION 0x002c
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+#define XILINX_DMA_REG_DMACR 0x0000
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+#define XILINX_DMA_DMACR_DELAY_MAX 0xff
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+#define XILINX_DMA_DMACR_DELAY_SHIFT 24
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+#define XILINX_DMA_DMACR_FRAME_COUNT_MAX 0xff
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+#define XILINX_DMA_DMACR_FRAME_COUNT_SHIFT 16
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+#define XILINX_DMA_DMACR_ERR_IRQ BIT(14)
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+#define XILINX_DMA_DMACR_DLY_CNT_IRQ BIT(13)
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+#define XILINX_DMA_DMACR_FRM_CNT_IRQ BIT(12)
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+#define XILINX_DMA_DMACR_MASTER_SHIFT 8
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+#define XILINX_DMA_DMACR_FSYNCSRC_SHIFT 5
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+#define XILINX_DMA_DMACR_FRAMECNT_EN BIT(4)
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+#define XILINX_DMA_DMACR_GENLOCK_EN BIT(3)
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+#define XILINX_DMA_DMACR_RESET BIT(2)
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+#define XILINX_DMA_DMACR_CIRC_EN BIT(1)
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+#define XILINX_DMA_DMACR_RUNSTOP BIT(0)
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+#define XILINX_DMA_DMACR_FSYNCSRC_MASK GENMASK(6, 5)
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+
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+#define XILINX_DMA_REG_DMASR 0x0004
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+#define XILINX_DMA_DMASR_EOL_LATE_ERR BIT(15)
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+#define XILINX_DMA_DMASR_ERR_IRQ BIT(14)
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+#define XILINX_DMA_DMASR_DLY_CNT_IRQ BIT(13)
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+#define XILINX_DMA_DMASR_FRM_CNT_IRQ BIT(12)
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+#define XILINX_DMA_DMASR_SOF_LATE_ERR BIT(11)
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+#define XILINX_DMA_DMASR_SG_DEC_ERR BIT(10)
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+#define XILINX_DMA_DMASR_SG_SLV_ERR BIT(9)
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+#define XILINX_DMA_DMASR_EOF_EARLY_ERR BIT(8)
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+#define XILINX_DMA_DMASR_SOF_EARLY_ERR BIT(7)
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+#define XILINX_DMA_DMASR_DMA_DEC_ERR BIT(6)
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+#define XILINX_DMA_DMASR_DMA_SLAVE_ERR BIT(5)
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+#define XILINX_DMA_DMASR_DMA_INT_ERR BIT(4)
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+#define XILINX_DMA_DMASR_IDLE BIT(1)
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+#define XILINX_DMA_DMASR_HALTED BIT(0)
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+#define XILINX_DMA_DMASR_DELAY_MASK GENMASK(31, 24)
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+#define XILINX_DMA_DMASR_FRAME_COUNT_MASK GENMASK(23, 16)
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+
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+#define XILINX_DMA_REG_CURDESC 0x0008
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+#define XILINX_DMA_REG_TAILDESC 0x0010
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+#define XILINX_DMA_REG_REG_INDEX 0x0014
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+#define XILINX_DMA_REG_FRMSTORE 0x0018
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+#define XILINX_DMA_REG_THRESHOLD 0x001c
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+#define XILINX_DMA_REG_FRMPTR_STS 0x0024
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+#define XILINX_DMA_REG_PARK_PTR 0x0028
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+#define XILINX_DMA_PARK_PTR_WR_REF_SHIFT 8
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+#define XILINX_DMA_PARK_PTR_RD_REF_SHIFT 0
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+#define XILINX_DMA_REG_VDMA_VERSION 0x002c
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/* Register Direct Mode Registers */
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-#define XILINX_VDMA_REG_VSIZE 0x0000
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-#define XILINX_VDMA_REG_HSIZE 0x0004
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+#define XILINX_DMA_REG_VSIZE 0x0000
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+#define XILINX_DMA_REG_HSIZE 0x0004
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-#define XILINX_VDMA_REG_FRMDLY_STRIDE 0x0008
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-#define XILINX_VDMA_FRMDLY_STRIDE_FRMDLY_SHIFT 24
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-#define XILINX_VDMA_FRMDLY_STRIDE_STRIDE_SHIFT 0
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+#define XILINX_DMA_REG_FRMDLY_STRIDE 0x0008
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+#define XILINX_DMA_FRMDLY_STRIDE_FRMDLY_SHIFT 24
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+#define XILINX_DMA_FRMDLY_STRIDE_STRIDE_SHIFT 0
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#define XILINX_VDMA_REG_START_ADDRESS(n) (0x000c + 4 * (n))
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#define XILINX_VDMA_REG_START_ADDRESS_64(n) (0x000c + 8 * (n))
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/* HW specific definitions */
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-#define XILINX_VDMA_MAX_CHANS_PER_DEVICE 0x2
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-
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-#define XILINX_VDMA_DMAXR_ALL_IRQ_MASK \
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- (XILINX_VDMA_DMASR_FRM_CNT_IRQ | \
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- XILINX_VDMA_DMASR_DLY_CNT_IRQ | \
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- XILINX_VDMA_DMASR_ERR_IRQ)
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-
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-#define XILINX_VDMA_DMASR_ALL_ERR_MASK \
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- (XILINX_VDMA_DMASR_EOL_LATE_ERR | \
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- XILINX_VDMA_DMASR_SOF_LATE_ERR | \
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- XILINX_VDMA_DMASR_SG_DEC_ERR | \
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- XILINX_VDMA_DMASR_SG_SLV_ERR | \
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- XILINX_VDMA_DMASR_EOF_EARLY_ERR | \
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- XILINX_VDMA_DMASR_SOF_EARLY_ERR | \
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- XILINX_VDMA_DMASR_DMA_DEC_ERR | \
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- XILINX_VDMA_DMASR_DMA_SLAVE_ERR | \
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- XILINX_VDMA_DMASR_DMA_INT_ERR)
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+#define XILINX_DMA_MAX_CHANS_PER_DEVICE 0x2
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+
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+#define XILINX_DMA_DMAXR_ALL_IRQ_MASK \
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+ (XILINX_DMA_DMASR_FRM_CNT_IRQ | \
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+ XILINX_DMA_DMASR_DLY_CNT_IRQ | \
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+ XILINX_DMA_DMASR_ERR_IRQ)
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+
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+#define XILINX_DMA_DMASR_ALL_ERR_MASK \
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+ (XILINX_DMA_DMASR_EOL_LATE_ERR | \
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+ XILINX_DMA_DMASR_SOF_LATE_ERR | \
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+ XILINX_DMA_DMASR_SG_DEC_ERR | \
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+ XILINX_DMA_DMASR_SG_SLV_ERR | \
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+ XILINX_DMA_DMASR_EOF_EARLY_ERR | \
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+ XILINX_DMA_DMASR_SOF_EARLY_ERR | \
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+ XILINX_DMA_DMASR_DMA_DEC_ERR | \
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+ XILINX_DMA_DMASR_DMA_SLAVE_ERR | \
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+ XILINX_DMA_DMASR_DMA_INT_ERR)
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/*
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* Recoverable errors are DMA Internal error, SOF Early, EOF Early
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* and SOF Late. They are only recoverable when C_FLUSH_ON_FSYNC
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* is enabled in the h/w system.
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*/
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-#define XILINX_VDMA_DMASR_ERR_RECOVER_MASK \
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- (XILINX_VDMA_DMASR_SOF_LATE_ERR | \
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- XILINX_VDMA_DMASR_EOF_EARLY_ERR | \
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- XILINX_VDMA_DMASR_SOF_EARLY_ERR | \
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- XILINX_VDMA_DMASR_DMA_INT_ERR)
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+#define XILINX_DMA_DMASR_ERR_RECOVER_MASK \
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+ (XILINX_DMA_DMASR_SOF_LATE_ERR | \
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+ XILINX_DMA_DMASR_EOF_EARLY_ERR | \
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+ XILINX_DMA_DMASR_SOF_EARLY_ERR | \
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+ XILINX_DMA_DMASR_DMA_INT_ERR)
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/* Axi VDMA Flush on Fsync bits */
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-#define XILINX_VDMA_FLUSH_S2MM 3
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-#define XILINX_VDMA_FLUSH_MM2S 2
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-#define XILINX_VDMA_FLUSH_BOTH 1
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+#define XILINX_DMA_FLUSH_S2MM 3
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+#define XILINX_DMA_FLUSH_MM2S 2
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+#define XILINX_DMA_FLUSH_BOTH 1
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/* Delay loop counter to prevent hardware failure */
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-#define XILINX_VDMA_LOOP_COUNT 1000000
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+#define XILINX_DMA_LOOP_COUNT 1000000
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/**
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* struct xilinx_vdma_desc_hw - Hardware Descriptor
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@@ -174,19 +174,19 @@ struct xilinx_vdma_tx_segment {
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} __aligned(64);
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/**
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- * struct xilinx_vdma_tx_descriptor - Per Transaction structure
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+ * struct xilinx_dma_tx_descriptor - Per Transaction structure
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* @async_tx: Async transaction descriptor
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* @segments: TX segments list
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* @node: Node in the channel descriptors list
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*/
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-struct xilinx_vdma_tx_descriptor {
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+struct xilinx_dma_tx_descriptor {
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struct dma_async_tx_descriptor async_tx;
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struct list_head segments;
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struct list_head node;
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};
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/**
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- * struct xilinx_vdma_chan - Driver specific VDMA channel structure
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+ * struct xilinx_dma_chan - Driver specific DMA channel structure
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* @xdev: Driver specific device structure
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* @ctrl_offset: Control registers offset
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* @desc_offset: TX descriptor registers offset
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@@ -211,8 +211,8 @@ struct xilinx_vdma_tx_descriptor {
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* @ext_addr: Indicates 64 bit addressing is supported by dma channel
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* @desc_submitcount: Descriptor h/w submitted count
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*/
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-struct xilinx_vdma_chan {
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- struct xilinx_vdma_device *xdev;
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+struct xilinx_dma_chan {
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+ struct xilinx_dma_device *xdev;
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u32 ctrl_offset;
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u32 desc_offset;
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spinlock_t lock;
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@@ -238,20 +238,20 @@ struct xilinx_vdma_chan {
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};
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/**
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- * struct xilinx_vdma_device - VDMA device structure
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+ * struct xilinx_dma_device - DMA device structure
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* @regs: I/O mapped base address
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* @dev: Device Structure
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* @common: DMA device structure
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- * @chan: Driver specific VDMA channel
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+ * @chan: Driver specific DMA channel
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* @has_sg: Specifies whether Scatter-Gather is present or not
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* @flush_on_fsync: Flush on frame sync
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* @ext_addr: Indicates 64 bit addressing is supported by dma device
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*/
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-struct xilinx_vdma_device {
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+struct xilinx_dma_device {
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void __iomem *regs;
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struct device *dev;
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struct dma_device common;
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- struct xilinx_vdma_chan *chan[XILINX_VDMA_MAX_CHANS_PER_DEVICE];
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+ struct xilinx_dma_chan *chan[XILINX_DMA_MAX_CHANS_PER_DEVICE];
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bool has_sg;
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u32 flush_on_fsync;
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bool ext_addr;
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@@ -259,51 +259,51 @@ struct xilinx_vdma_device {
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/* Macros */
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#define to_xilinx_chan(chan) \
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- container_of(chan, struct xilinx_vdma_chan, common)
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-#define to_vdma_tx_descriptor(tx) \
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- container_of(tx, struct xilinx_vdma_tx_descriptor, async_tx)
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-#define xilinx_vdma_poll_timeout(chan, reg, val, cond, delay_us, timeout_us) \
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+ container_of(chan, struct xilinx_dma_chan, common)
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+#define to_dma_tx_descriptor(tx) \
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+ container_of(tx, struct xilinx_dma_tx_descriptor, async_tx)
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+#define xilinx_dma_poll_timeout(chan, reg, val, cond, delay_us, timeout_us) \
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readl_poll_timeout(chan->xdev->regs + chan->ctrl_offset + reg, val, \
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cond, delay_us, timeout_us)
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/* IO accessors */
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-static inline u32 vdma_read(struct xilinx_vdma_chan *chan, u32 reg)
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+static inline u32 dma_read(struct xilinx_dma_chan *chan, u32 reg)
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{
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return ioread32(chan->xdev->regs + reg);
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}
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-static inline void vdma_write(struct xilinx_vdma_chan *chan, u32 reg, u32 value)
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+static inline void dma_write(struct xilinx_dma_chan *chan, u32 reg, u32 value)
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{
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iowrite32(value, chan->xdev->regs + reg);
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}
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-static inline void vdma_desc_write(struct xilinx_vdma_chan *chan, u32 reg,
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+static inline void vdma_desc_write(struct xilinx_dma_chan *chan, u32 reg,
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u32 value)
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{
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- vdma_write(chan, chan->desc_offset + reg, value);
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+ dma_write(chan, chan->desc_offset + reg, value);
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}
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-static inline u32 vdma_ctrl_read(struct xilinx_vdma_chan *chan, u32 reg)
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+static inline u32 dma_ctrl_read(struct xilinx_dma_chan *chan, u32 reg)
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{
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- return vdma_read(chan, chan->ctrl_offset + reg);
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+ return dma_read(chan, chan->ctrl_offset + reg);
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}
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-static inline void vdma_ctrl_write(struct xilinx_vdma_chan *chan, u32 reg,
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+static inline void dma_ctrl_write(struct xilinx_dma_chan *chan, u32 reg,
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u32 value)
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{
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- vdma_write(chan, chan->ctrl_offset + reg, value);
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+ dma_write(chan, chan->ctrl_offset + reg, value);
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}
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-static inline void vdma_ctrl_clr(struct xilinx_vdma_chan *chan, u32 reg,
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+static inline void dma_ctrl_clr(struct xilinx_dma_chan *chan, u32 reg,
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u32 clr)
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{
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- vdma_ctrl_write(chan, reg, vdma_ctrl_read(chan, reg) & ~clr);
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+ dma_ctrl_write(chan, reg, dma_ctrl_read(chan, reg) & ~clr);
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}
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-static inline void vdma_ctrl_set(struct xilinx_vdma_chan *chan, u32 reg,
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+static inline void dma_ctrl_set(struct xilinx_dma_chan *chan, u32 reg,
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u32 set)
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{
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- vdma_ctrl_write(chan, reg, vdma_ctrl_read(chan, reg) | set);
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+ dma_ctrl_write(chan, reg, dma_ctrl_read(chan, reg) | set);
|
|
|
}
|
|
|
|
|
|
/**
|
|
@@ -317,7 +317,7 @@ static inline void vdma_ctrl_set(struct xilinx_vdma_chan *chan, u32 reg,
|
|
|
* multiple of 64 bits(ex : 0x5c), we are writing as two separate 32 bits
|
|
|
* instead of a single 64 bit register write.
|
|
|
*/
|
|
|
-static inline void vdma_desc_write_64(struct xilinx_vdma_chan *chan, u32 reg,
|
|
|
+static inline void vdma_desc_write_64(struct xilinx_dma_chan *chan, u32 reg,
|
|
|
u32 value_lsb, u32 value_msb)
|
|
|
{
|
|
|
/* Write the lsb 32 bits*/
|
|
@@ -333,12 +333,12 @@ static inline void vdma_desc_write_64(struct xilinx_vdma_chan *chan, u32 reg,
|
|
|
|
|
|
/**
|
|
|
* xilinx_vdma_alloc_tx_segment - Allocate transaction segment
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: The allocated segment on success and NULL on failure.
|
|
|
*/
|
|
|
static struct xilinx_vdma_tx_segment *
|
|
|
-xilinx_vdma_alloc_tx_segment(struct xilinx_vdma_chan *chan)
|
|
|
+xilinx_vdma_alloc_tx_segment(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
struct xilinx_vdma_tx_segment *segment;
|
|
|
dma_addr_t phys;
|
|
@@ -354,25 +354,25 @@ xilinx_vdma_alloc_tx_segment(struct xilinx_vdma_chan *chan)
|
|
|
|
|
|
/**
|
|
|
* xilinx_vdma_free_tx_segment - Free transaction segment
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
- * @segment: VDMA transaction segment
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
+ * @segment: DMA transaction segment
|
|
|
*/
|
|
|
-static void xilinx_vdma_free_tx_segment(struct xilinx_vdma_chan *chan,
|
|
|
+static void xilinx_vdma_free_tx_segment(struct xilinx_dma_chan *chan,
|
|
|
struct xilinx_vdma_tx_segment *segment)
|
|
|
{
|
|
|
dma_pool_free(chan->desc_pool, segment, segment->phys);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_tx_descriptor - Allocate transaction descriptor
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_tx_descriptor - Allocate transaction descriptor
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: The allocated descriptor on success and NULL on failure.
|
|
|
*/
|
|
|
-static struct xilinx_vdma_tx_descriptor *
|
|
|
-xilinx_vdma_alloc_tx_descriptor(struct xilinx_vdma_chan *chan)
|
|
|
+static struct xilinx_dma_tx_descriptor *
|
|
|
+xilinx_dma_alloc_tx_descriptor(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
- struct xilinx_vdma_tx_descriptor *desc;
|
|
|
+ struct xilinx_dma_tx_descriptor *desc;
|
|
|
|
|
|
desc = kzalloc(sizeof(*desc), GFP_KERNEL);
|
|
|
if (!desc)
|
|
@@ -384,13 +384,13 @@ xilinx_vdma_alloc_tx_descriptor(struct xilinx_vdma_chan *chan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_free_tx_descriptor - Free transaction descriptor
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
- * @desc: VDMA transaction descriptor
|
|
|
+ * xilinx_dma_free_tx_descriptor - Free transaction descriptor
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
+ * @desc: DMA transaction descriptor
|
|
|
*/
|
|
|
static void
|
|
|
-xilinx_vdma_free_tx_descriptor(struct xilinx_vdma_chan *chan,
|
|
|
- struct xilinx_vdma_tx_descriptor *desc)
|
|
|
+xilinx_dma_free_tx_descriptor(struct xilinx_dma_chan *chan,
|
|
|
+ struct xilinx_dma_tx_descriptor *desc)
|
|
|
{
|
|
|
struct xilinx_vdma_tx_segment *segment, *next;
|
|
|
|
|
@@ -408,60 +408,60 @@ xilinx_vdma_free_tx_descriptor(struct xilinx_vdma_chan *chan,
|
|
|
/* Required functions */
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_free_desc_list - Free descriptors list
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_free_desc_list - Free descriptors list
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
* @list: List to parse and delete the descriptor
|
|
|
*/
|
|
|
-static void xilinx_vdma_free_desc_list(struct xilinx_vdma_chan *chan,
|
|
|
+static void xilinx_dma_free_desc_list(struct xilinx_dma_chan *chan,
|
|
|
struct list_head *list)
|
|
|
{
|
|
|
- struct xilinx_vdma_tx_descriptor *desc, *next;
|
|
|
+ struct xilinx_dma_tx_descriptor *desc, *next;
|
|
|
|
|
|
list_for_each_entry_safe(desc, next, list, node) {
|
|
|
list_del(&desc->node);
|
|
|
- xilinx_vdma_free_tx_descriptor(chan, desc);
|
|
|
+ xilinx_dma_free_tx_descriptor(chan, desc);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_free_descriptors - Free channel descriptors
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_free_descriptors - Free channel descriptors
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_free_descriptors(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_free_descriptors(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
unsigned long flags;
|
|
|
|
|
|
spin_lock_irqsave(&chan->lock, flags);
|
|
|
|
|
|
- xilinx_vdma_free_desc_list(chan, &chan->pending_list);
|
|
|
- xilinx_vdma_free_desc_list(chan, &chan->done_list);
|
|
|
- xilinx_vdma_free_desc_list(chan, &chan->active_list);
|
|
|
+ xilinx_dma_free_desc_list(chan, &chan->pending_list);
|
|
|
+ xilinx_dma_free_desc_list(chan, &chan->done_list);
|
|
|
+ xilinx_dma_free_desc_list(chan, &chan->active_list);
|
|
|
|
|
|
spin_unlock_irqrestore(&chan->lock, flags);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_free_chan_resources - Free channel resources
|
|
|
+ * xilinx_dma_free_chan_resources - Free channel resources
|
|
|
* @dchan: DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_free_chan_resources(struct dma_chan *dchan)
|
|
|
+static void xilinx_dma_free_chan_resources(struct dma_chan *dchan)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
|
|
|
dev_dbg(chan->dev, "Free all channel resources.\n");
|
|
|
|
|
|
- xilinx_vdma_free_descriptors(chan);
|
|
|
+ xilinx_dma_free_descriptors(chan);
|
|
|
dma_pool_destroy(chan->desc_pool);
|
|
|
chan->desc_pool = NULL;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_chan_desc_cleanup - Clean channel descriptors
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_chan_desc_cleanup - Clean channel descriptors
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_chan_desc_cleanup(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_chan_desc_cleanup(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
- struct xilinx_vdma_tx_descriptor *desc, *next;
|
|
|
+ struct xilinx_dma_tx_descriptor *desc, *next;
|
|
|
unsigned long flags;
|
|
|
|
|
|
spin_lock_irqsave(&chan->lock, flags);
|
|
@@ -484,32 +484,32 @@ static void xilinx_vdma_chan_desc_cleanup(struct xilinx_vdma_chan *chan)
|
|
|
|
|
|
/* Run any dependencies, then free the descriptor */
|
|
|
dma_run_dependencies(&desc->async_tx);
|
|
|
- xilinx_vdma_free_tx_descriptor(chan, desc);
|
|
|
+ xilinx_dma_free_tx_descriptor(chan, desc);
|
|
|
}
|
|
|
|
|
|
spin_unlock_irqrestore(&chan->lock, flags);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_do_tasklet - Schedule completion tasklet
|
|
|
- * @data: Pointer to the Xilinx VDMA channel structure
|
|
|
+ * xilinx_dma_do_tasklet - Schedule completion tasklet
|
|
|
+ * @data: Pointer to the Xilinx DMA channel structure
|
|
|
*/
|
|
|
-static void xilinx_vdma_do_tasklet(unsigned long data)
|
|
|
+static void xilinx_dma_do_tasklet(unsigned long data)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = (struct xilinx_vdma_chan *)data;
|
|
|
+ struct xilinx_dma_chan *chan = (struct xilinx_dma_chan *)data;
|
|
|
|
|
|
- xilinx_vdma_chan_desc_cleanup(chan);
|
|
|
+ xilinx_dma_chan_desc_cleanup(chan);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_alloc_chan_resources - Allocate channel resources
|
|
|
+ * xilinx_dma_alloc_chan_resources - Allocate channel resources
|
|
|
* @dchan: DMA channel
|
|
|
*
|
|
|
* Return: '0' on success and failure value on error
|
|
|
*/
|
|
|
-static int xilinx_vdma_alloc_chan_resources(struct dma_chan *dchan)
|
|
|
+static int xilinx_dma_alloc_chan_resources(struct dma_chan *dchan)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
|
|
|
/* Has this channel already been allocated? */
|
|
|
if (chan->desc_pool)
|
|
@@ -535,14 +535,14 @@ static int xilinx_vdma_alloc_chan_resources(struct dma_chan *dchan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_tx_status - Get VDMA transaction status
|
|
|
+ * xilinx_dma_tx_status - Get DMA transaction status
|
|
|
* @dchan: DMA channel
|
|
|
* @cookie: Transaction identifier
|
|
|
* @txstate: Transaction state
|
|
|
*
|
|
|
* Return: DMA transaction status
|
|
|
*/
|
|
|
-static enum dma_status xilinx_vdma_tx_status(struct dma_chan *dchan,
|
|
|
+static enum dma_status xilinx_dma_tx_status(struct dma_chan *dchan,
|
|
|
dma_cookie_t cookie,
|
|
|
struct dma_tx_state *txstate)
|
|
|
{
|
|
@@ -550,73 +550,73 @@ static enum dma_status xilinx_vdma_tx_status(struct dma_chan *dchan,
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_is_running - Check if VDMA channel is running
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_is_running - Check if DMA channel is running
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: '1' if running, '0' if not.
|
|
|
*/
|
|
|
-static bool xilinx_vdma_is_running(struct xilinx_vdma_chan *chan)
|
|
|
+static bool xilinx_dma_is_running(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
- return !(vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR) &
|
|
|
- XILINX_VDMA_DMASR_HALTED) &&
|
|
|
- (vdma_ctrl_read(chan, XILINX_VDMA_REG_DMACR) &
|
|
|
- XILINX_VDMA_DMACR_RUNSTOP);
|
|
|
+ return !(dma_ctrl_read(chan, XILINX_DMA_REG_DMASR) &
|
|
|
+ XILINX_DMA_DMASR_HALTED) &&
|
|
|
+ (dma_ctrl_read(chan, XILINX_DMA_REG_DMACR) &
|
|
|
+ XILINX_DMA_DMACR_RUNSTOP);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_is_idle - Check if VDMA channel is idle
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_is_idle - Check if DMA channel is idle
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: '1' if idle, '0' if not.
|
|
|
*/
|
|
|
-static bool xilinx_vdma_is_idle(struct xilinx_vdma_chan *chan)
|
|
|
+static bool xilinx_dma_is_idle(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
- return vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR) &
|
|
|
- XILINX_VDMA_DMASR_IDLE;
|
|
|
+ return dma_ctrl_read(chan, XILINX_DMA_REG_DMASR) &
|
|
|
+ XILINX_DMA_DMASR_IDLE;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_halt - Halt VDMA channel
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_halt - Halt DMA channel
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_halt(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_halt(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
int err;
|
|
|
u32 val;
|
|
|
|
|
|
- vdma_ctrl_clr(chan, XILINX_VDMA_REG_DMACR, XILINX_VDMA_DMACR_RUNSTOP);
|
|
|
+ dma_ctrl_clr(chan, XILINX_DMA_REG_DMACR, XILINX_DMA_DMACR_RUNSTOP);
|
|
|
|
|
|
/* Wait for the hardware to halt */
|
|
|
- err = xilinx_vdma_poll_timeout(chan, XILINX_VDMA_REG_DMASR, val,
|
|
|
- (val & XILINX_VDMA_DMASR_HALTED), 0,
|
|
|
- XILINX_VDMA_LOOP_COUNT);
|
|
|
+ err = xilinx_dma_poll_timeout(chan, XILINX_DMA_REG_DMASR, val,
|
|
|
+ (val & XILINX_DMA_DMASR_HALTED), 0,
|
|
|
+ XILINX_DMA_LOOP_COUNT);
|
|
|
|
|
|
if (err) {
|
|
|
dev_err(chan->dev, "Cannot stop channel %p: %x\n",
|
|
|
- chan, vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR));
|
|
|
+ chan, dma_ctrl_read(chan, XILINX_DMA_REG_DMASR));
|
|
|
chan->err = true;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_start - Start VDMA channel
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_start - Start DMA channel
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_start(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_start(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
int err;
|
|
|
u32 val;
|
|
|
|
|
|
- vdma_ctrl_set(chan, XILINX_VDMA_REG_DMACR, XILINX_VDMA_DMACR_RUNSTOP);
|
|
|
+ dma_ctrl_set(chan, XILINX_DMA_REG_DMACR, XILINX_DMA_DMACR_RUNSTOP);
|
|
|
|
|
|
/* Wait for the hardware to start */
|
|
|
- err = xilinx_vdma_poll_timeout(chan, XILINX_VDMA_REG_DMASR, val,
|
|
|
- !(val & XILINX_VDMA_DMASR_HALTED), 0,
|
|
|
- XILINX_VDMA_LOOP_COUNT);
|
|
|
+ err = xilinx_dma_poll_timeout(chan, XILINX_DMA_REG_DMASR, val,
|
|
|
+ !(val & XILINX_DMA_DMASR_HALTED), 0,
|
|
|
+ XILINX_DMA_LOOP_COUNT);
|
|
|
|
|
|
if (err) {
|
|
|
dev_err(chan->dev, "Cannot start channel %p: %x\n",
|
|
|
- chan, vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR));
|
|
|
+ chan, dma_ctrl_read(chan, XILINX_DMA_REG_DMASR));
|
|
|
|
|
|
chan->err = true;
|
|
|
}
|
|
@@ -626,10 +626,10 @@ static void xilinx_vdma_start(struct xilinx_vdma_chan *chan)
|
|
|
* xilinx_vdma_start_transfer - Starts VDMA transfer
|
|
|
* @chan: Driver specific channel struct pointer
|
|
|
*/
|
|
|
-static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_vdma_start_transfer(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
struct xilinx_vdma_config *config = &chan->config;
|
|
|
- struct xilinx_vdma_tx_descriptor *desc, *tail_desc;
|
|
|
+ struct xilinx_dma_tx_descriptor *desc, *tail_desc;
|
|
|
u32 reg;
|
|
|
struct xilinx_vdma_tx_segment *tail_segment;
|
|
|
|
|
@@ -641,16 +641,16 @@ static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
return;
|
|
|
|
|
|
desc = list_first_entry(&chan->pending_list,
|
|
|
- struct xilinx_vdma_tx_descriptor, node);
|
|
|
+ struct xilinx_dma_tx_descriptor, node);
|
|
|
tail_desc = list_last_entry(&chan->pending_list,
|
|
|
- struct xilinx_vdma_tx_descriptor, node);
|
|
|
+ struct xilinx_dma_tx_descriptor, node);
|
|
|
|
|
|
tail_segment = list_last_entry(&tail_desc->segments,
|
|
|
struct xilinx_vdma_tx_segment, node);
|
|
|
|
|
|
/* If it is SG mode and hardware is busy, cannot submit */
|
|
|
- if (chan->has_sg && xilinx_vdma_is_running(chan) &&
|
|
|
- !xilinx_vdma_is_idle(chan)) {
|
|
|
+ if (chan->has_sg && xilinx_dma_is_running(chan) &&
|
|
|
+ !xilinx_dma_is_idle(chan)) {
|
|
|
dev_dbg(chan->dev, "DMA controller still busy\n");
|
|
|
return;
|
|
|
}
|
|
@@ -660,19 +660,19 @@ static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
* done, start new transfers
|
|
|
*/
|
|
|
if (chan->has_sg)
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_CURDESC,
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_CURDESC,
|
|
|
desc->async_tx.phys);
|
|
|
|
|
|
/* Configure the hardware using info in the config structure */
|
|
|
- reg = vdma_ctrl_read(chan, XILINX_VDMA_REG_DMACR);
|
|
|
+ reg = dma_ctrl_read(chan, XILINX_DMA_REG_DMACR);
|
|
|
|
|
|
if (config->frm_cnt_en)
|
|
|
- reg |= XILINX_VDMA_DMACR_FRAMECNT_EN;
|
|
|
+ reg |= XILINX_DMA_DMACR_FRAMECNT_EN;
|
|
|
else
|
|
|
- reg &= ~XILINX_VDMA_DMACR_FRAMECNT_EN;
|
|
|
+ reg &= ~XILINX_DMA_DMACR_FRAMECNT_EN;
|
|
|
|
|
|
/* Configure channel to allow number frame buffers */
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_FRMSTORE,
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_FRMSTORE,
|
|
|
chan->desc_pendingcount);
|
|
|
|
|
|
/*
|
|
@@ -680,34 +680,34 @@ static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
* In direct register mode, if not parking, enable circular mode
|
|
|
*/
|
|
|
if (chan->has_sg || !config->park)
|
|
|
- reg |= XILINX_VDMA_DMACR_CIRC_EN;
|
|
|
+ reg |= XILINX_DMA_DMACR_CIRC_EN;
|
|
|
|
|
|
if (config->park)
|
|
|
- reg &= ~XILINX_VDMA_DMACR_CIRC_EN;
|
|
|
+ reg &= ~XILINX_DMA_DMACR_CIRC_EN;
|
|
|
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_DMACR, reg);
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_DMACR, reg);
|
|
|
|
|
|
if (config->park && (config->park_frm >= 0) &&
|
|
|
(config->park_frm < chan->num_frms)) {
|
|
|
if (chan->direction == DMA_MEM_TO_DEV)
|
|
|
- vdma_write(chan, XILINX_VDMA_REG_PARK_PTR,
|
|
|
+ dma_write(chan, XILINX_DMA_REG_PARK_PTR,
|
|
|
config->park_frm <<
|
|
|
- XILINX_VDMA_PARK_PTR_RD_REF_SHIFT);
|
|
|
+ XILINX_DMA_PARK_PTR_RD_REF_SHIFT);
|
|
|
else
|
|
|
- vdma_write(chan, XILINX_VDMA_REG_PARK_PTR,
|
|
|
+ dma_write(chan, XILINX_DMA_REG_PARK_PTR,
|
|
|
config->park_frm <<
|
|
|
- XILINX_VDMA_PARK_PTR_WR_REF_SHIFT);
|
|
|
+ XILINX_DMA_PARK_PTR_WR_REF_SHIFT);
|
|
|
}
|
|
|
|
|
|
/* Start the hardware */
|
|
|
- xilinx_vdma_start(chan);
|
|
|
+ xilinx_dma_start(chan);
|
|
|
|
|
|
if (chan->err)
|
|
|
return;
|
|
|
|
|
|
/* Start the transfer */
|
|
|
if (chan->has_sg) {
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_TAILDESC,
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_TAILDESC,
|
|
|
tail_segment->phys);
|
|
|
} else {
|
|
|
struct xilinx_vdma_tx_segment *segment, *last = NULL;
|
|
@@ -734,10 +734,10 @@ static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
return;
|
|
|
|
|
|
/* HW expects these parameters to be same for one transaction */
|
|
|
- vdma_desc_write(chan, XILINX_VDMA_REG_HSIZE, last->hw.hsize);
|
|
|
- vdma_desc_write(chan, XILINX_VDMA_REG_FRMDLY_STRIDE,
|
|
|
+ vdma_desc_write(chan, XILINX_DMA_REG_HSIZE, last->hw.hsize);
|
|
|
+ vdma_desc_write(chan, XILINX_DMA_REG_FRMDLY_STRIDE,
|
|
|
last->hw.stride);
|
|
|
- vdma_desc_write(chan, XILINX_VDMA_REG_VSIZE, last->hw.vsize);
|
|
|
+ vdma_desc_write(chan, XILINX_DMA_REG_VSIZE, last->hw.vsize);
|
|
|
}
|
|
|
|
|
|
if (!chan->has_sg) {
|
|
@@ -754,12 +754,12 @@ static void xilinx_vdma_start_transfer(struct xilinx_vdma_chan *chan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_issue_pending - Issue pending transactions
|
|
|
+ * xilinx_dma_issue_pending - Issue pending transactions
|
|
|
* @dchan: DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_issue_pending(struct dma_chan *dchan)
|
|
|
+static void xilinx_dma_issue_pending(struct dma_chan *dchan)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
unsigned long flags;
|
|
|
|
|
|
spin_lock_irqsave(&chan->lock, flags);
|
|
@@ -768,14 +768,14 @@ static void xilinx_vdma_issue_pending(struct dma_chan *dchan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_complete_descriptor - Mark the active descriptor as complete
|
|
|
+ * xilinx_dma_complete_descriptor - Mark the active descriptor as complete
|
|
|
* @chan : xilinx DMA channel
|
|
|
*
|
|
|
* CONTEXT: hardirq
|
|
|
*/
|
|
|
-static void xilinx_vdma_complete_descriptor(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_complete_descriptor(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
- struct xilinx_vdma_tx_descriptor *desc, *next;
|
|
|
+ struct xilinx_dma_tx_descriptor *desc, *next;
|
|
|
|
|
|
/* This function was invoked with lock held */
|
|
|
if (list_empty(&chan->active_list))
|
|
@@ -789,27 +789,27 @@ static void xilinx_vdma_complete_descriptor(struct xilinx_vdma_chan *chan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_reset - Reset VDMA channel
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_reset - Reset DMA channel
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: '0' on success and failure value on error
|
|
|
*/
|
|
|
-static int xilinx_vdma_reset(struct xilinx_vdma_chan *chan)
|
|
|
+static int xilinx_dma_reset(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
int err;
|
|
|
u32 tmp;
|
|
|
|
|
|
- vdma_ctrl_set(chan, XILINX_VDMA_REG_DMACR, XILINX_VDMA_DMACR_RESET);
|
|
|
+ dma_ctrl_set(chan, XILINX_DMA_REG_DMACR, XILINX_DMA_DMACR_RESET);
|
|
|
|
|
|
/* Wait for the hardware to finish reset */
|
|
|
- err = xilinx_vdma_poll_timeout(chan, XILINX_VDMA_REG_DMACR, tmp,
|
|
|
- !(tmp & XILINX_VDMA_DMACR_RESET), 0,
|
|
|
- XILINX_VDMA_LOOP_COUNT);
|
|
|
+ err = xilinx_dma_poll_timeout(chan, XILINX_DMA_REG_DMACR, tmp,
|
|
|
+ !(tmp & XILINX_DMA_DMACR_RESET), 0,
|
|
|
+ XILINX_DMA_LOOP_COUNT);
|
|
|
|
|
|
if (err) {
|
|
|
dev_err(chan->dev, "reset timeout, cr %x, sr %x\n",
|
|
|
- vdma_ctrl_read(chan, XILINX_VDMA_REG_DMACR),
|
|
|
- vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR));
|
|
|
+ dma_ctrl_read(chan, XILINX_DMA_REG_DMACR),
|
|
|
+ dma_ctrl_read(chan, XILINX_DMA_REG_DMASR));
|
|
|
return -ETIMEDOUT;
|
|
|
}
|
|
|
|
|
@@ -819,48 +819,48 @@ static int xilinx_vdma_reset(struct xilinx_vdma_chan *chan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_chan_reset - Reset VDMA channel and enable interrupts
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_chan_reset - Reset DMA channel and enable interrupts
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*
|
|
|
* Return: '0' on success and failure value on error
|
|
|
*/
|
|
|
-static int xilinx_vdma_chan_reset(struct xilinx_vdma_chan *chan)
|
|
|
+static int xilinx_dma_chan_reset(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
int err;
|
|
|
|
|
|
/* Reset VDMA */
|
|
|
- err = xilinx_vdma_reset(chan);
|
|
|
+ err = xilinx_dma_reset(chan);
|
|
|
if (err)
|
|
|
return err;
|
|
|
|
|
|
/* Enable interrupts */
|
|
|
- vdma_ctrl_set(chan, XILINX_VDMA_REG_DMACR,
|
|
|
- XILINX_VDMA_DMAXR_ALL_IRQ_MASK);
|
|
|
+ dma_ctrl_set(chan, XILINX_DMA_REG_DMACR,
|
|
|
+ XILINX_DMA_DMAXR_ALL_IRQ_MASK);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_irq_handler - VDMA Interrupt handler
|
|
|
+ * xilinx_dma_irq_handler - DMA Interrupt handler
|
|
|
* @irq: IRQ number
|
|
|
- * @data: Pointer to the Xilinx VDMA channel structure
|
|
|
+ * @data: Pointer to the Xilinx DMA channel structure
|
|
|
*
|
|
|
* Return: IRQ_HANDLED/IRQ_NONE
|
|
|
*/
|
|
|
-static irqreturn_t xilinx_vdma_irq_handler(int irq, void *data)
|
|
|
+static irqreturn_t xilinx_dma_irq_handler(int irq, void *data)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = data;
|
|
|
+ struct xilinx_dma_chan *chan = data;
|
|
|
u32 status;
|
|
|
|
|
|
/* Read the status and ack the interrupts. */
|
|
|
- status = vdma_ctrl_read(chan, XILINX_VDMA_REG_DMASR);
|
|
|
- if (!(status & XILINX_VDMA_DMAXR_ALL_IRQ_MASK))
|
|
|
+ status = dma_ctrl_read(chan, XILINX_DMA_REG_DMASR);
|
|
|
+ if (!(status & XILINX_DMA_DMAXR_ALL_IRQ_MASK))
|
|
|
return IRQ_NONE;
|
|
|
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_DMASR,
|
|
|
- status & XILINX_VDMA_DMAXR_ALL_IRQ_MASK);
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_DMASR,
|
|
|
+ status & XILINX_DMA_DMAXR_ALL_IRQ_MASK);
|
|
|
|
|
|
- if (status & XILINX_VDMA_DMASR_ERR_IRQ) {
|
|
|
+ if (status & XILINX_DMA_DMASR_ERR_IRQ) {
|
|
|
/*
|
|
|
* An error occurred. If C_FLUSH_ON_FSYNC is enabled and the
|
|
|
* error is recoverable, ignore it. Otherwise flag the error.
|
|
@@ -868,23 +868,23 @@ static irqreturn_t xilinx_vdma_irq_handler(int irq, void *data)
|
|
|
* Only recoverable errors can be cleared in the DMASR register,
|
|
|
* make sure not to write to other error bits to 1.
|
|
|
*/
|
|
|
- u32 errors = status & XILINX_VDMA_DMASR_ALL_ERR_MASK;
|
|
|
+ u32 errors = status & XILINX_DMA_DMASR_ALL_ERR_MASK;
|
|
|
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_DMASR,
|
|
|
- errors & XILINX_VDMA_DMASR_ERR_RECOVER_MASK);
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_DMASR,
|
|
|
+ errors & XILINX_DMA_DMASR_ERR_RECOVER_MASK);
|
|
|
|
|
|
if (!chan->flush_on_fsync ||
|
|
|
- (errors & ~XILINX_VDMA_DMASR_ERR_RECOVER_MASK)) {
|
|
|
+ (errors & ~XILINX_DMA_DMASR_ERR_RECOVER_MASK)) {
|
|
|
dev_err(chan->dev,
|
|
|
"Channel %p has errors %x, cdr %x tdr %x\n",
|
|
|
chan, errors,
|
|
|
- vdma_ctrl_read(chan, XILINX_VDMA_REG_CURDESC),
|
|
|
- vdma_ctrl_read(chan, XILINX_VDMA_REG_TAILDESC));
|
|
|
+ dma_ctrl_read(chan, XILINX_DMA_REG_CURDESC),
|
|
|
+ dma_ctrl_read(chan, XILINX_DMA_REG_TAILDESC));
|
|
|
chan->err = true;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
- if (status & XILINX_VDMA_DMASR_DLY_CNT_IRQ) {
|
|
|
+ if (status & XILINX_DMA_DMASR_DLY_CNT_IRQ) {
|
|
|
/*
|
|
|
* Device takes too long to do the transfer when user requires
|
|
|
* responsiveness.
|
|
@@ -892,9 +892,9 @@ static irqreturn_t xilinx_vdma_irq_handler(int irq, void *data)
|
|
|
dev_dbg(chan->dev, "Inter-packet latency too long\n");
|
|
|
}
|
|
|
|
|
|
- if (status & XILINX_VDMA_DMASR_FRM_CNT_IRQ) {
|
|
|
+ if (status & XILINX_DMA_DMASR_FRM_CNT_IRQ) {
|
|
|
spin_lock(&chan->lock);
|
|
|
- xilinx_vdma_complete_descriptor(chan);
|
|
|
+ xilinx_dma_complete_descriptor(chan);
|
|
|
xilinx_vdma_start_transfer(chan);
|
|
|
spin_unlock(&chan->lock);
|
|
|
}
|
|
@@ -908,11 +908,11 @@ static irqreturn_t xilinx_vdma_irq_handler(int irq, void *data)
|
|
|
* @chan: Driver specific dma channel
|
|
|
* @desc: dma transaction descriptor
|
|
|
*/
|
|
|
-static void append_desc_queue(struct xilinx_vdma_chan *chan,
|
|
|
- struct xilinx_vdma_tx_descriptor *desc)
|
|
|
+static void append_desc_queue(struct xilinx_dma_chan *chan,
|
|
|
+ struct xilinx_dma_tx_descriptor *desc)
|
|
|
{
|
|
|
struct xilinx_vdma_tx_segment *tail_segment;
|
|
|
- struct xilinx_vdma_tx_descriptor *tail_desc;
|
|
|
+ struct xilinx_dma_tx_descriptor *tail_desc;
|
|
|
|
|
|
if (list_empty(&chan->pending_list))
|
|
|
goto append;
|
|
@@ -922,7 +922,7 @@ static void append_desc_queue(struct xilinx_vdma_chan *chan,
|
|
|
* that already exists in memory.
|
|
|
*/
|
|
|
tail_desc = list_last_entry(&chan->pending_list,
|
|
|
- struct xilinx_vdma_tx_descriptor, node);
|
|
|
+ struct xilinx_dma_tx_descriptor, node);
|
|
|
tail_segment = list_last_entry(&tail_desc->segments,
|
|
|
struct xilinx_vdma_tx_segment, node);
|
|
|
tail_segment->hw.next_desc = (u32)desc->async_tx.phys;
|
|
@@ -943,15 +943,15 @@ append:
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_tx_submit - Submit DMA transaction
|
|
|
+ * xilinx_dma_tx_submit - Submit DMA transaction
|
|
|
* @tx: Async transaction descriptor
|
|
|
*
|
|
|
* Return: cookie value on success and failure value on error
|
|
|
*/
|
|
|
-static dma_cookie_t xilinx_vdma_tx_submit(struct dma_async_tx_descriptor *tx)
|
|
|
+static dma_cookie_t xilinx_dma_tx_submit(struct dma_async_tx_descriptor *tx)
|
|
|
{
|
|
|
- struct xilinx_vdma_tx_descriptor *desc = to_vdma_tx_descriptor(tx);
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(tx->chan);
|
|
|
+ struct xilinx_dma_tx_descriptor *desc = to_dma_tx_descriptor(tx);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(tx->chan);
|
|
|
dma_cookie_t cookie;
|
|
|
unsigned long flags;
|
|
|
int err;
|
|
@@ -961,7 +961,7 @@ static dma_cookie_t xilinx_vdma_tx_submit(struct dma_async_tx_descriptor *tx)
|
|
|
* If reset fails, need to hard reset the system.
|
|
|
* Channel is no longer functional
|
|
|
*/
|
|
|
- err = xilinx_vdma_chan_reset(chan);
|
|
|
+ err = xilinx_dma_chan_reset(chan);
|
|
|
if (err < 0)
|
|
|
return err;
|
|
|
}
|
|
@@ -992,8 +992,8 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan,
|
|
|
struct dma_interleaved_template *xt,
|
|
|
unsigned long flags)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
- struct xilinx_vdma_tx_descriptor *desc;
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_tx_descriptor *desc;
|
|
|
struct xilinx_vdma_tx_segment *segment, *prev = NULL;
|
|
|
struct xilinx_vdma_desc_hw *hw;
|
|
|
|
|
@@ -1007,12 +1007,12 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan,
|
|
|
return NULL;
|
|
|
|
|
|
/* Allocate a transaction descriptor. */
|
|
|
- desc = xilinx_vdma_alloc_tx_descriptor(chan);
|
|
|
+ desc = xilinx_dma_alloc_tx_descriptor(chan);
|
|
|
if (!desc)
|
|
|
return NULL;
|
|
|
|
|
|
dma_async_tx_descriptor_init(&desc->async_tx, &chan->common);
|
|
|
- desc->async_tx.tx_submit = xilinx_vdma_tx_submit;
|
|
|
+ desc->async_tx.tx_submit = xilinx_dma_tx_submit;
|
|
|
async_tx_ack(&desc->async_tx);
|
|
|
|
|
|
/* Allocate the link descriptor from DMA pool */
|
|
@@ -1025,9 +1025,9 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan,
|
|
|
hw->vsize = xt->numf;
|
|
|
hw->hsize = xt->sgl[0].size;
|
|
|
hw->stride = (xt->sgl[0].icg + xt->sgl[0].size) <<
|
|
|
- XILINX_VDMA_FRMDLY_STRIDE_STRIDE_SHIFT;
|
|
|
+ XILINX_DMA_FRMDLY_STRIDE_STRIDE_SHIFT;
|
|
|
hw->stride |= chan->config.frm_dly <<
|
|
|
- XILINX_VDMA_FRMDLY_STRIDE_FRMDLY_SHIFT;
|
|
|
+ XILINX_DMA_FRMDLY_STRIDE_FRMDLY_SHIFT;
|
|
|
|
|
|
if (xt->dir != DMA_MEM_TO_DEV) {
|
|
|
if (chan->ext_addr) {
|
|
@@ -1058,29 +1058,29 @@ xilinx_vdma_dma_prep_interleaved(struct dma_chan *dchan,
|
|
|
return &desc->async_tx;
|
|
|
|
|
|
error:
|
|
|
- xilinx_vdma_free_tx_descriptor(chan, desc);
|
|
|
+ xilinx_dma_free_tx_descriptor(chan, desc);
|
|
|
return NULL;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_terminate_all - Halt the channel and free descriptors
|
|
|
- * @chan: Driver specific VDMA Channel pointer
|
|
|
+ * xilinx_dma_terminate_all - Halt the channel and free descriptors
|
|
|
+ * @chan: Driver specific DMA Channel pointer
|
|
|
*/
|
|
|
-static int xilinx_vdma_terminate_all(struct dma_chan *dchan)
|
|
|
+static int xilinx_dma_terminate_all(struct dma_chan *dchan)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
|
|
|
/* Halt the DMA engine */
|
|
|
- xilinx_vdma_halt(chan);
|
|
|
+ xilinx_dma_halt(chan);
|
|
|
|
|
|
/* Remove and free all of the descriptors in the lists */
|
|
|
- xilinx_vdma_free_descriptors(chan);
|
|
|
+ xilinx_dma_free_descriptors(chan);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_channel_set_config - Configure VDMA channel
|
|
|
+ * xilinx_dma_channel_set_config - Configure VDMA channel
|
|
|
* Run-time configuration for Axi VDMA, supports:
|
|
|
* . halt the channel
|
|
|
* . configure interrupt coalescing and inter-packet delay threshold
|
|
@@ -1095,13 +1095,13 @@ static int xilinx_vdma_terminate_all(struct dma_chan *dchan)
|
|
|
int xilinx_vdma_channel_set_config(struct dma_chan *dchan,
|
|
|
struct xilinx_vdma_config *cfg)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan);
|
|
|
+ struct xilinx_dma_chan *chan = to_xilinx_chan(dchan);
|
|
|
u32 dmacr;
|
|
|
|
|
|
if (cfg->reset)
|
|
|
- return xilinx_vdma_chan_reset(chan);
|
|
|
+ return xilinx_dma_chan_reset(chan);
|
|
|
|
|
|
- dmacr = vdma_ctrl_read(chan, XILINX_VDMA_REG_DMACR);
|
|
|
+ dmacr = dma_ctrl_read(chan, XILINX_DMA_REG_DMACR);
|
|
|
|
|
|
chan->config.frm_dly = cfg->frm_dly;
|
|
|
chan->config.park = cfg->park;
|
|
@@ -1111,8 +1111,8 @@ int xilinx_vdma_channel_set_config(struct dma_chan *dchan,
|
|
|
chan->config.master = cfg->master;
|
|
|
|
|
|
if (cfg->gen_lock && chan->genlock) {
|
|
|
- dmacr |= XILINX_VDMA_DMACR_GENLOCK_EN;
|
|
|
- dmacr |= cfg->master << XILINX_VDMA_DMACR_MASTER_SHIFT;
|
|
|
+ dmacr |= XILINX_DMA_DMACR_GENLOCK_EN;
|
|
|
+ dmacr |= cfg->master << XILINX_DMA_DMACR_MASTER_SHIFT;
|
|
|
}
|
|
|
|
|
|
chan->config.frm_cnt_en = cfg->frm_cnt_en;
|
|
@@ -1124,21 +1124,21 @@ int xilinx_vdma_channel_set_config(struct dma_chan *dchan,
|
|
|
chan->config.coalesc = cfg->coalesc;
|
|
|
chan->config.delay = cfg->delay;
|
|
|
|
|
|
- if (cfg->coalesc <= XILINX_VDMA_DMACR_FRAME_COUNT_MAX) {
|
|
|
- dmacr |= cfg->coalesc << XILINX_VDMA_DMACR_FRAME_COUNT_SHIFT;
|
|
|
+ if (cfg->coalesc <= XILINX_DMA_DMACR_FRAME_COUNT_MAX) {
|
|
|
+ dmacr |= cfg->coalesc << XILINX_DMA_DMACR_FRAME_COUNT_SHIFT;
|
|
|
chan->config.coalesc = cfg->coalesc;
|
|
|
}
|
|
|
|
|
|
- if (cfg->delay <= XILINX_VDMA_DMACR_DELAY_MAX) {
|
|
|
- dmacr |= cfg->delay << XILINX_VDMA_DMACR_DELAY_SHIFT;
|
|
|
+ if (cfg->delay <= XILINX_DMA_DMACR_DELAY_MAX) {
|
|
|
+ dmacr |= cfg->delay << XILINX_DMA_DMACR_DELAY_SHIFT;
|
|
|
chan->config.delay = cfg->delay;
|
|
|
}
|
|
|
|
|
|
/* FSync Source selection */
|
|
|
- dmacr &= ~XILINX_VDMA_DMACR_FSYNCSRC_MASK;
|
|
|
- dmacr |= cfg->ext_fsync << XILINX_VDMA_DMACR_FSYNCSRC_SHIFT;
|
|
|
+ dmacr &= ~XILINX_DMA_DMACR_FSYNCSRC_MASK;
|
|
|
+ dmacr |= cfg->ext_fsync << XILINX_DMA_DMACR_FSYNCSRC_SHIFT;
|
|
|
|
|
|
- vdma_ctrl_write(chan, XILINX_VDMA_REG_DMACR, dmacr);
|
|
|
+ dma_ctrl_write(chan, XILINX_DMA_REG_DMACR, dmacr);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
@@ -1149,14 +1149,14 @@ EXPORT_SYMBOL(xilinx_vdma_channel_set_config);
|
|
|
*/
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_chan_remove - Per Channel remove function
|
|
|
- * @chan: Driver specific VDMA channel
|
|
|
+ * xilinx_dma_chan_remove - Per Channel remove function
|
|
|
+ * @chan: Driver specific DMA channel
|
|
|
*/
|
|
|
-static void xilinx_vdma_chan_remove(struct xilinx_vdma_chan *chan)
|
|
|
+static void xilinx_dma_chan_remove(struct xilinx_dma_chan *chan)
|
|
|
{
|
|
|
/* Disable all interrupts */
|
|
|
- vdma_ctrl_clr(chan, XILINX_VDMA_REG_DMACR,
|
|
|
- XILINX_VDMA_DMAXR_ALL_IRQ_MASK);
|
|
|
+ dma_ctrl_clr(chan, XILINX_DMA_REG_DMACR,
|
|
|
+ XILINX_DMA_DMAXR_ALL_IRQ_MASK);
|
|
|
|
|
|
if (chan->irq > 0)
|
|
|
free_irq(chan->irq, chan);
|
|
@@ -1167,7 +1167,7 @@ static void xilinx_vdma_chan_remove(struct xilinx_vdma_chan *chan)
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_chan_probe - Per Channel Probing
|
|
|
+ * xilinx_dma_chan_probe - Per Channel Probing
|
|
|
* It get channel features from the device tree entry and
|
|
|
* initialize special channel handling routines
|
|
|
*
|
|
@@ -1176,10 +1176,10 @@ static void xilinx_vdma_chan_remove(struct xilinx_vdma_chan *chan)
|
|
|
*
|
|
|
* Return: '0' on success and failure value on error
|
|
|
*/
|
|
|
-static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
|
|
|
+static int xilinx_dma_chan_probe(struct xilinx_dma_device *xdev,
|
|
|
struct device_node *node)
|
|
|
{
|
|
|
- struct xilinx_vdma_chan *chan;
|
|
|
+ struct xilinx_dma_chan *chan;
|
|
|
bool has_dre = false;
|
|
|
u32 value, width;
|
|
|
int err;
|
|
@@ -1223,22 +1223,22 @@ static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
|
|
|
chan->direction = DMA_MEM_TO_DEV;
|
|
|
chan->id = 0;
|
|
|
|
|
|
- chan->ctrl_offset = XILINX_VDMA_MM2S_CTRL_OFFSET;
|
|
|
+ chan->ctrl_offset = XILINX_DMA_MM2S_CTRL_OFFSET;
|
|
|
chan->desc_offset = XILINX_VDMA_MM2S_DESC_OFFSET;
|
|
|
|
|
|
- if (xdev->flush_on_fsync == XILINX_VDMA_FLUSH_BOTH ||
|
|
|
- xdev->flush_on_fsync == XILINX_VDMA_FLUSH_MM2S)
|
|
|
+ if (xdev->flush_on_fsync == XILINX_DMA_FLUSH_BOTH ||
|
|
|
+ xdev->flush_on_fsync == XILINX_DMA_FLUSH_MM2S)
|
|
|
chan->flush_on_fsync = true;
|
|
|
} else if (of_device_is_compatible(node,
|
|
|
"xlnx,axi-vdma-s2mm-channel")) {
|
|
|
chan->direction = DMA_DEV_TO_MEM;
|
|
|
chan->id = 1;
|
|
|
|
|
|
- chan->ctrl_offset = XILINX_VDMA_S2MM_CTRL_OFFSET;
|
|
|
+ chan->ctrl_offset = XILINX_DMA_S2MM_CTRL_OFFSET;
|
|
|
chan->desc_offset = XILINX_VDMA_S2MM_DESC_OFFSET;
|
|
|
|
|
|
- if (xdev->flush_on_fsync == XILINX_VDMA_FLUSH_BOTH ||
|
|
|
- xdev->flush_on_fsync == XILINX_VDMA_FLUSH_S2MM)
|
|
|
+ if (xdev->flush_on_fsync == XILINX_DMA_FLUSH_BOTH ||
|
|
|
+ xdev->flush_on_fsync == XILINX_DMA_FLUSH_S2MM)
|
|
|
chan->flush_on_fsync = true;
|
|
|
} else {
|
|
|
dev_err(xdev->dev, "Invalid channel compatible node\n");
|
|
@@ -1247,15 +1247,15 @@ static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
|
|
|
|
|
|
/* Request the interrupt */
|
|
|
chan->irq = irq_of_parse_and_map(node, 0);
|
|
|
- err = request_irq(chan->irq, xilinx_vdma_irq_handler, IRQF_SHARED,
|
|
|
- "xilinx-vdma-controller", chan);
|
|
|
+ err = request_irq(chan->irq, xilinx_dma_irq_handler, IRQF_SHARED,
|
|
|
+ "xilinx-dma-controller", chan);
|
|
|
if (err) {
|
|
|
dev_err(xdev->dev, "unable to request IRQ %d\n", chan->irq);
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
/* Initialize the tasklet */
|
|
|
- tasklet_init(&chan->tasklet, xilinx_vdma_do_tasklet,
|
|
|
+ tasklet_init(&chan->tasklet, xilinx_dma_do_tasklet,
|
|
|
(unsigned long)chan);
|
|
|
|
|
|
/*
|
|
@@ -1268,7 +1268,7 @@ static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
|
|
|
xdev->chan[chan->id] = chan;
|
|
|
|
|
|
/* Reset the channel */
|
|
|
- err = xilinx_vdma_chan_reset(chan);
|
|
|
+ err = xilinx_dma_chan_reset(chan);
|
|
|
if (err < 0) {
|
|
|
dev_err(xdev->dev, "Reset channel failed\n");
|
|
|
return err;
|
|
@@ -1287,25 +1287,25 @@ static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
|
|
|
static struct dma_chan *of_dma_xilinx_xlate(struct of_phandle_args *dma_spec,
|
|
|
struct of_dma *ofdma)
|
|
|
{
|
|
|
- struct xilinx_vdma_device *xdev = ofdma->of_dma_data;
|
|
|
+ struct xilinx_dma_device *xdev = ofdma->of_dma_data;
|
|
|
int chan_id = dma_spec->args[0];
|
|
|
|
|
|
- if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE)
|
|
|
+ if (chan_id >= XILINX_DMA_MAX_CHANS_PER_DEVICE)
|
|
|
return NULL;
|
|
|
|
|
|
return dma_get_slave_channel(&xdev->chan[chan_id]->common);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_probe - Driver probe function
|
|
|
+ * xilinx_dma_probe - Driver probe function
|
|
|
* @pdev: Pointer to the platform_device structure
|
|
|
*
|
|
|
* Return: '0' on success and failure value on error
|
|
|
*/
|
|
|
-static int xilinx_vdma_probe(struct platform_device *pdev)
|
|
|
+static int xilinx_dma_probe(struct platform_device *pdev)
|
|
|
{
|
|
|
struct device_node *node = pdev->dev.of_node;
|
|
|
- struct xilinx_vdma_device *xdev;
|
|
|
+ struct xilinx_dma_device *xdev;
|
|
|
struct device_node *child;
|
|
|
struct resource *io;
|
|
|
u32 num_frames, addr_width;
|
|
@@ -1358,25 +1358,25 @@ static int xilinx_vdma_probe(struct platform_device *pdev)
|
|
|
dma_cap_set(DMA_PRIVATE, xdev->common.cap_mask);
|
|
|
|
|
|
xdev->common.device_alloc_chan_resources =
|
|
|
- xilinx_vdma_alloc_chan_resources;
|
|
|
+ xilinx_dma_alloc_chan_resources;
|
|
|
xdev->common.device_free_chan_resources =
|
|
|
- xilinx_vdma_free_chan_resources;
|
|
|
+ xilinx_dma_free_chan_resources;
|
|
|
xdev->common.device_prep_interleaved_dma =
|
|
|
xilinx_vdma_dma_prep_interleaved;
|
|
|
- xdev->common.device_terminate_all = xilinx_vdma_terminate_all;
|
|
|
- xdev->common.device_tx_status = xilinx_vdma_tx_status;
|
|
|
- xdev->common.device_issue_pending = xilinx_vdma_issue_pending;
|
|
|
+ xdev->common.device_terminate_all = xilinx_dma_terminate_all;
|
|
|
+ xdev->common.device_tx_status = xilinx_dma_tx_status;
|
|
|
+ xdev->common.device_issue_pending = xilinx_dma_issue_pending;
|
|
|
|
|
|
platform_set_drvdata(pdev, xdev);
|
|
|
|
|
|
/* Initialize the channels */
|
|
|
for_each_child_of_node(node, child) {
|
|
|
- err = xilinx_vdma_chan_probe(xdev, child);
|
|
|
+ err = xilinx_dma_chan_probe(xdev, child);
|
|
|
if (err < 0)
|
|
|
goto error;
|
|
|
}
|
|
|
|
|
|
- for (i = 0; i < XILINX_VDMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
+ for (i = 0; i < XILINX_DMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
if (xdev->chan[i])
|
|
|
xdev->chan[i]->num_frms = num_frames;
|
|
|
|
|
@@ -1396,48 +1396,48 @@ static int xilinx_vdma_probe(struct platform_device *pdev)
|
|
|
return 0;
|
|
|
|
|
|
error:
|
|
|
- for (i = 0; i < XILINX_VDMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
+ for (i = 0; i < XILINX_DMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
if (xdev->chan[i])
|
|
|
- xilinx_vdma_chan_remove(xdev->chan[i]);
|
|
|
+ xilinx_dma_chan_remove(xdev->chan[i]);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
- * xilinx_vdma_remove - Driver remove function
|
|
|
+ * xilinx_dma_remove - Driver remove function
|
|
|
* @pdev: Pointer to the platform_device structure
|
|
|
*
|
|
|
* Return: Always '0'
|
|
|
*/
|
|
|
-static int xilinx_vdma_remove(struct platform_device *pdev)
|
|
|
+static int xilinx_dma_remove(struct platform_device *pdev)
|
|
|
{
|
|
|
- struct xilinx_vdma_device *xdev = platform_get_drvdata(pdev);
|
|
|
+ struct xilinx_dma_device *xdev = platform_get_drvdata(pdev);
|
|
|
int i;
|
|
|
|
|
|
of_dma_controller_free(pdev->dev.of_node);
|
|
|
|
|
|
dma_async_device_unregister(&xdev->common);
|
|
|
|
|
|
- for (i = 0; i < XILINX_VDMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
+ for (i = 0; i < XILINX_DMA_MAX_CHANS_PER_DEVICE; i++)
|
|
|
if (xdev->chan[i])
|
|
|
- xilinx_vdma_chan_remove(xdev->chan[i]);
|
|
|
+ xilinx_dma_chan_remove(xdev->chan[i]);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-static const struct of_device_id xilinx_vdma_of_ids[] = {
|
|
|
+static const struct of_device_id xilinx_dma_of_ids[] = {
|
|
|
{ .compatible = "xlnx,axi-vdma-1.00.a",},
|
|
|
{}
|
|
|
};
|
|
|
-MODULE_DEVICE_TABLE(of, xilinx_vdma_of_ids);
|
|
|
+MODULE_DEVICE_TABLE(of, xilinx_dma_of_ids);
|
|
|
|
|
|
static struct platform_driver xilinx_vdma_driver = {
|
|
|
.driver = {
|
|
|
.name = "xilinx-vdma",
|
|
|
- .of_match_table = xilinx_vdma_of_ids,
|
|
|
+ .of_match_table = xilinx_dma_of_ids,
|
|
|
},
|
|
|
- .probe = xilinx_vdma_probe,
|
|
|
- .remove = xilinx_vdma_remove,
|
|
|
+ .probe = xilinx_dma_probe,
|
|
|
+ .remove = xilinx_dma_remove,
|
|
|
};
|
|
|
|
|
|
module_platform_driver(xilinx_vdma_driver);
|