[RESEND PATCH v2 2/6] dmaengine: vdma: Rename xilinx_vdma_ prefix to xilinx_dma
Kedareswara rao Appana
appana.durga.rao at xilinx.com
Tue Apr 5 22:14:56 PDT 2016
This patch renames the xilinx_vdma_ prefix to xilinx_dma
for the API's and masks that will be shared b/w three DMA
IP cores.
Signed-off-by: Kedareswara rao Appana <appanad at xilinx.com>
---
Changes for v2:
---> New patch as suggested by Laurent Pinchart.
drivers/dma/xilinx/xilinx_vdma.c | 636 +++++++++++++++++++--------------------
1 file changed, 318 insertions(+), 318 deletions(-)
diff --git a/drivers/dma/xilinx/xilinx_vdma.c b/drivers/dma/xilinx/xilinx_vdma.c
index 3c5ce37..04fd8f5 100644
--- a/drivers/dma/xilinx/xilinx_vdma.c
+++ b/drivers/dma/xilinx/xilinx_vdma.c
@@ -39,106 +39,106 @@
#include "../dmaengine.h"
/* Register/Descriptor Offsets */
-#define XILINX_VDMA_MM2S_CTRL_OFFSET 0x0000
-#define XILINX_VDMA_S2MM_CTRL_OFFSET 0x0030
+#define XILINX_DMA_MM2S_CTRL_OFFSET 0x0000
+#define XILINX_DMA_S2MM_CTRL_OFFSET 0x0030
#define XILINX_VDMA_MM2S_DESC_OFFSET 0x0050
#define XILINX_VDMA_S2MM_DESC_OFFSET 0x00a0
/* Control Registers */
-#define XILINX_VDMA_REG_DMACR 0x0000
-#define XILINX_VDMA_DMACR_DELAY_MAX 0xff
-#define XILINX_VDMA_DMACR_DELAY_SHIFT 24
-#define XILINX_VDMA_DMACR_FRAME_COUNT_MAX 0xff
-#define XILINX_VDMA_DMACR_FRAME_COUNT_SHIFT 16
-#define XILINX_VDMA_DMACR_ERR_IRQ BIT(14)
-#define XILINX_VDMA_DMACR_DLY_CNT_IRQ BIT(13)
-#define XILINX_VDMA_DMACR_FRM_CNT_IRQ BIT(12)
-#define XILINX_VDMA_DMACR_MASTER_SHIFT 8
-#define XILINX_VDMA_DMACR_FSYNCSRC_SHIFT 5
-#define XILINX_VDMA_DMACR_FRAMECNT_EN BIT(4)
-#define XILINX_VDMA_DMACR_GENLOCK_EN BIT(3)
-#define XILINX_VDMA_DMACR_RESET BIT(2)
-#define XILINX_VDMA_DMACR_CIRC_EN BIT(1)
-#define XILINX_VDMA_DMACR_RUNSTOP BIT(0)
-#define XILINX_VDMA_DMACR_FSYNCSRC_MASK GENMASK(6, 5)
-
-#define XILINX_VDMA_REG_DMASR 0x0004
-#define XILINX_VDMA_DMASR_EOL_LATE_ERR BIT(15)
-#define XILINX_VDMA_DMASR_ERR_IRQ BIT(14)
-#define XILINX_VDMA_DMASR_DLY_CNT_IRQ BIT(13)
-#define XILINX_VDMA_DMASR_FRM_CNT_IRQ BIT(12)
-#define XILINX_VDMA_DMASR_SOF_LATE_ERR BIT(11)
-#define XILINX_VDMA_DMASR_SG_DEC_ERR BIT(10)
-#define XILINX_VDMA_DMASR_SG_SLV_ERR BIT(9)
-#define XILINX_VDMA_DMASR_EOF_EARLY_ERR BIT(8)
-#define XILINX_VDMA_DMASR_SOF_EARLY_ERR BIT(7)
-#define XILINX_VDMA_DMASR_DMA_DEC_ERR BIT(6)
-#define XILINX_VDMA_DMASR_DMA_SLAVE_ERR BIT(5)
-#define XILINX_VDMA_DMASR_DMA_INT_ERR BIT(4)
-#define XILINX_VDMA_DMASR_IDLE BIT(1)
-#define XILINX_VDMA_DMASR_HALTED BIT(0)
-#define XILINX_VDMA_DMASR_DELAY_MASK GENMASK(31, 24)
-#define XILINX_VDMA_DMASR_FRAME_COUNT_MASK GENMASK(23, 16)
-
-#define XILINX_VDMA_REG_CURDESC 0x0008
-#define XILINX_VDMA_REG_TAILDESC 0x0010
-#define XILINX_VDMA_REG_REG_INDEX 0x0014
-#define XILINX_VDMA_REG_FRMSTORE 0x0018
-#define XILINX_VDMA_REG_THRESHOLD 0x001c
-#define XILINX_VDMA_REG_FRMPTR_STS 0x0024
-#define XILINX_VDMA_REG_PARK_PTR 0x0028
-#define XILINX_VDMA_PARK_PTR_WR_REF_SHIFT 8
-#define XILINX_VDMA_PARK_PTR_RD_REF_SHIFT 0
-#define XILINX_VDMA_REG_VDMA_VERSION 0x002c
+#define XILINX_DMA_REG_DMACR 0x0000
+#define XILINX_DMA_DMACR_DELAY_MAX 0xff
+#define XILINX_DMA_DMACR_DELAY_SHIFT 24
+#define XILINX_DMA_DMACR_FRAME_COUNT_MAX 0xff
+#define XILINX_DMA_DMACR_FRAME_COUNT_SHIFT 16
+#define XILINX_DMA_DMACR_ERR_IRQ BIT(14)
+#define XILINX_DMA_DMACR_DLY_CNT_IRQ BIT(13)
+#define XILINX_DMA_DMACR_FRM_CNT_IRQ BIT(12)
+#define XILINX_DMA_DMACR_MASTER_SHIFT 8
+#define XILINX_DMA_DMACR_FSYNCSRC_SHIFT 5
+#define XILINX_DMA_DMACR_FRAMECNT_EN BIT(4)
+#define XILINX_DMA_DMACR_GENLOCK_EN BIT(3)
+#define XILINX_DMA_DMACR_RESET BIT(2)
+#define XILINX_DMA_DMACR_CIRC_EN BIT(1)
+#define XILINX_DMA_DMACR_RUNSTOP BIT(0)
+#define XILINX_DMA_DMACR_FSYNCSRC_MASK GENMASK(6, 5)
+
+#define XILINX_DMA_REG_DMASR 0x0004
+#define XILINX_DMA_DMASR_EOL_LATE_ERR BIT(15)
+#define XILINX_DMA_DMASR_ERR_IRQ BIT(14)
+#define XILINX_DMA_DMASR_DLY_CNT_IRQ BIT(13)
+#define XILINX_DMA_DMASR_FRM_CNT_IRQ BIT(12)
+#define XILINX_DMA_DMASR_SOF_LATE_ERR BIT(11)
+#define XILINX_DMA_DMASR_SG_DEC_ERR BIT(10)
+#define XILINX_DMA_DMASR_SG_SLV_ERR BIT(9)
+#define XILINX_DMA_DMASR_EOF_EARLY_ERR BIT(8)
+#define XILINX_DMA_DMASR_SOF_EARLY_ERR BIT(7)
+#define XILINX_DMA_DMASR_DMA_DEC_ERR BIT(6)
+#define XILINX_DMA_DMASR_DMA_SLAVE_ERR BIT(5)
+#define XILINX_DMA_DMASR_DMA_INT_ERR BIT(4)
+#define XILINX_DMA_DMASR_IDLE BIT(1)
+#define XILINX_DMA_DMASR_HALTED BIT(0)
+#define XILINX_DMA_DMASR_DELAY_MASK GENMASK(31, 24)
+#define XILINX_DMA_DMASR_FRAME_COUNT_MASK GENMASK(23, 16)
+
+#define XILINX_DMA_REG_CURDESC 0x0008
+#define XILINX_DMA_REG_TAILDESC 0x0010
+#define XILINX_DMA_REG_REG_INDEX 0x0014
+#define XILINX_DMA_REG_FRMSTORE 0x0018
+#define XILINX_DMA_REG_THRESHOLD 0x001c
+#define XILINX_DMA_REG_FRMPTR_STS 0x0024
+#define XILINX_DMA_REG_PARK_PTR 0x0028
+#define XILINX_DMA_PARK_PTR_WR_REF_SHIFT 8
+#define XILINX_DMA_PARK_PTR_RD_REF_SHIFT 0
+#define XILINX_DMA_REG_VDMA_VERSION 0x002c
/* Register Direct Mode Registers */
-#define XILINX_VDMA_REG_VSIZE 0x0000
-#define XILINX_VDMA_REG_HSIZE 0x0004
+#define XILINX_DMA_REG_VSIZE 0x0000
+#define XILINX_DMA_REG_HSIZE 0x0004
-#define XILINX_VDMA_REG_FRMDLY_STRIDE 0x0008
-#define XILINX_VDMA_FRMDLY_STRIDE_FRMDLY_SHIFT 24
-#define XILINX_VDMA_FRMDLY_STRIDE_STRIDE_SHIFT 0
+#define XILINX_DMA_REG_FRMDLY_STRIDE 0x0008
+#define XILINX_DMA_FRMDLY_STRIDE_FRMDLY_SHIFT 24
+#define XILINX_DMA_FRMDLY_STRIDE_STRIDE_SHIFT 0
#define XILINX_VDMA_REG_START_ADDRESS(n) (0x000c + 4 * (n))
#define XILINX_VDMA_REG_START_ADDRESS_64(n) (0x000c + 8 * (n))
/* HW specific definitions */
-#define XILINX_VDMA_MAX_CHANS_PER_DEVICE 0x2
-
-#define XILINX_VDMA_DMAXR_ALL_IRQ_MASK \
- (XILINX_VDMA_DMASR_FRM_CNT_IRQ | \
- XILINX_VDMA_DMASR_DLY_CNT_IRQ | \
- XILINX_VDMA_DMASR_ERR_IRQ)
-
-#define XILINX_VDMA_DMASR_ALL_ERR_MASK \
- (XILINX_VDMA_DMASR_EOL_LATE_ERR | \
- XILINX_VDMA_DMASR_SOF_LATE_ERR | \
- XILINX_VDMA_DMASR_SG_DEC_ERR | \
- XILINX_VDMA_DMASR_SG_SLV_ERR | \
- XILINX_VDMA_DMASR_EOF_EARLY_ERR | \
- XILINX_VDMA_DMASR_SOF_EARLY_ERR | \
- XILINX_VDMA_DMASR_DMA_DEC_ERR | \
- XILINX_VDMA_DMASR_DMA_SLAVE_ERR | \
- XILINX_VDMA_DMASR_DMA_INT_ERR)
+#define XILINX_DMA_MAX_CHANS_PER_DEVICE 0x2
+
+#define XILINX_DMA_DMAXR_ALL_IRQ_MASK \
+ (XILINX_DMA_DMASR_FRM_CNT_IRQ | \
+ XILINX_DMA_DMASR_DLY_CNT_IRQ | \
+ XILINX_DMA_DMASR_ERR_IRQ)
+
+#define XILINX_DMA_DMASR_ALL_ERR_MASK \
+ (XILINX_DMA_DMASR_EOL_LATE_ERR | \
+ XILINX_DMA_DMASR_SOF_LATE_ERR | \
+ XILINX_DMA_DMASR_SG_DEC_ERR | \
+ XILINX_DMA_DMASR_SG_SLV_ERR | \
+ XILINX_DMA_DMASR_EOF_EARLY_ERR | \
+ XILINX_DMA_DMASR_SOF_EARLY_ERR | \
+ XILINX_DMA_DMASR_DMA_DEC_ERR | \
+ XILINX_DMA_DMASR_DMA_SLAVE_ERR | \
+ XILINX_DMA_DMASR_DMA_INT_ERR)
/*
* Recoverable errors are DMA Internal error, SOF Early, EOF Early
* and SOF Late. They are only recoverable when C_FLUSH_ON_FSYNC
* is enabled in the h/w system.
*/
-#define XILINX_VDMA_DMASR_ERR_RECOVER_MASK \
- (XILINX_VDMA_DMASR_SOF_LATE_ERR | \
- XILINX_VDMA_DMASR_EOF_EARLY_ERR | \
- XILINX_VDMA_DMASR_SOF_EARLY_ERR | \
- XILINX_VDMA_DMASR_DMA_INT_ERR)
+#define XILINX_DMA_DMASR_ERR_RECOVER_MASK \
+ (XILINX_DMA_DMASR_SOF_LATE_ERR | \
+ XILINX_DMA_DMASR_EOF_EARLY_ERR | \
+ XILINX_DMA_DMASR_SOF_EARLY_ERR | \
+ XILINX_DMA_DMASR_DMA_INT_ERR)
/* Axi VDMA Flush on Fsync bits */
-#define XILINX_VDMA_FLUSH_S2MM 3
-#define XILINX_VDMA_FLUSH_MM2S 2
-#define XILINX_VDMA_FLUSH_BOTH 1
+#define XILINX_DMA_FLUSH_S2MM 3
+#define XILINX_DMA_FLUSH_MM2S 2
+#define XILINX_DMA_FLUSH_BOTH 1
/* Delay loop counter to prevent hardware failure */
-#define XILINX_VDMA_LOOP_COUNT 1000000
+#define XILINX_DMA_LOOP_COUNT 1000000
/**
* struct xilinx_vdma_desc_hw - Hardware Descriptor
@@ -174,19 +174,19 @@ struct xilinx_vdma_tx_segment {
} __aligned(64);
/**
- * struct xilinx_vdma_tx_descriptor - Per Transaction structure
+ * struct xilinx_dma_tx_descriptor - Per Transaction structure
* @async_tx: Async transaction descriptor
* @segments: TX segments list
* @node: Node in the channel descriptors list
*/
-struct xilinx_vdma_tx_descriptor {
+struct xilinx_dma_tx_descriptor {
struct dma_async_tx_descriptor async_tx;
struct list_head segments;
struct list_head node;
};
/**
- * struct xilinx_vdma_chan - Driver specific VDMA channel structure
+ * struct xilinx_dma_chan - Driver specific DMA channel structure
* @xdev: Driver specific device structure
* @ctrl_offset: Control registers offset
* @desc_offset: TX descriptor registers offset
@@ -211,8 +211,8 @@ struct xilinx_vdma_tx_descriptor {
* @ext_addr: Indicates 64 bit addressing is supported by dma channel
* @desc_submitcount: Descriptor h/w submitted count
*/
-struct xilinx_vdma_chan {
- struct xilinx_vdma_device *xdev;
+struct xilinx_dma_chan {
+ struct xilinx_dma_device *xdev;
u32 ctrl_offset;
u32 desc_offset;
spinlock_t lock;
@@ -238,20 +238,20 @@ struct xilinx_vdma_chan {
};
/**
- * struct xilinx_vdma_device - VDMA device structure
+ * struct xilinx_dma_device - DMA device structure
* @regs: I/O mapped base address
* @dev: Device Structure
* @common: DMA device structure
- * @chan: Driver specific VDMA channel
+ * @chan: Driver specific DMA channel
* @has_sg: Specifies whether Scatter-Gather is present or not
* @flush_on_fsync: Flush on frame sync
* @ext_addr: Indicates 64 bit addressing is supported by dma device
*/
-struct xilinx_vdma_device {
+struct xilinx_dma_device {
void __iomem *regs;
struct device *dev;
struct dma_device common;
- struct xilinx_vdma_chan *chan[XILINX_VDMA_MAX_CHANS_PER_DEVICE];
+ struct xilinx_dma_chan *chan[XILINX_DMA_MAX_CHANS_PER_DEVICE];
bool has_sg;
u32 flush_on_fsync;
bool ext_addr;
@@ -259,51 +259,51 @@ struct xilinx_vdma_device {
/* Macros */
#define to_xilinx_chan(chan) \
- container_of(chan, struct xilinx_vdma_chan, common)
-#define to_vdma_tx_descriptor(tx) \
- container_of(tx, struct xilinx_vdma_tx_descriptor, async_tx)
-#define xilinx_vdma_poll_timeout(chan, reg, val, cond, delay_us, timeout_us) \
+ container_of(chan, struct xilinx_dma_chan, common)
+#define to_dma_tx_descriptor(tx) \
+ container_of(tx, struct xilinx_dma_tx_descriptor, async_tx)
+#define xilinx_dma_poll_timeout(chan, reg, val, cond, delay_us, timeout_us) \
readl_poll_timeout(chan->xdev->regs + chan->ctrl_offset + reg, val, \
cond, delay_us, timeout_us)
/* IO accessors */
-static inline u32 vdma_read(struct xilinx_vdma_chan *chan, u32 reg)
+static inline u32 dma_read(struct xilinx_dma_chan *chan, u32 reg)
{
return ioread32(chan->xdev->regs + reg);
}
-static inline void vdma_write(struct xilinx_vdma_chan *chan, u32 reg, u32 value)
+static inline void dma_write(struct xilinx_dma_chan *chan, u32 reg, u32 value)
{
iowrite32(value, chan->xdev->regs + reg);
}
-static inline void vdma_desc_write(struct xilinx_vdma_chan *chan, u32 reg,
+static inline void vdma_desc_write(struct xilinx_dma_chan *chan, u32 reg,
u32 value)
{
- vdma_write(chan, chan->desc_offset + reg, value);
+ dma_write(chan, chan->desc_offset + reg, value);
}
-static inline u32 vdma_ctrl_read(struct xilinx_vdma_chan *chan, u32 reg)
+static inline u32 dma_ctrl_read(struct xilinx_dma_chan *chan, u32 reg)
{
- return vdma_read(chan, chan->ctrl_offset + reg);
+ return dma_read(chan, chan->ctrl_offset + reg);
}
-static inline void vdma_ctrl_write(struct xilinx_vdma_chan *chan, u32 reg,
+static inline void dma_ctrl_write(struct xilinx_dma_chan *chan, u32 reg,
u32 value)
{
- vdma_write(chan, chan->ctrl_offset + reg, value);
+ dma_write(chan, chan->ctrl_offset + reg, value);
}
-static inline void vdma_ctrl_clr(struct xilinx_vdma_chan *chan, u32 reg,
+static inline void dma_ctrl_clr(struct xilinx_dma_chan *chan, u32 reg,
u32 clr)
{
- vdma_ctrl_write(chan, reg, vdma_ctrl_read(chan, reg) & ~clr);
+ dma_ctrl_write(chan, reg, dma_ctrl_read(chan, reg) & ~clr);
}
-static inline void vdma_ctrl_set(struct xilinx_vdma_chan *chan, u32 reg,
+static inline void dma_ctrl_set(struct xilinx_dma_chan *chan, u32 reg,
u32 set)
{
- vdma_ctrl_write(chan, reg, vdma_ctrl_read(chan, reg) | set);
+ 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;
@@ -355,25 +355,25 @@ 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)
@@ -385,13 +385,13 @@ 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;
@@ -409,60 +409,60 @@ 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);
@@ -485,32 +485,32 @@ 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)
@@ -536,14 +536,14 @@ 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)
{
@@ -551,73 +551,73 @@ 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;
}
@@ -627,10 +627,10 @@ 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;
@@ -642,16 +642,16 @@ 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;
}
@@ -661,19 +661,19 @@ 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);
/*
@@ -681,34 +681,34 @@ 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;
@@ -735,10 +735,10 @@ 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) {
@@ -755,12 +755,12 @@ 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);
@@ -769,14 +769,14 @@ 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))
@@ -790,27 +790,27 @@ 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;
}
@@ -820,48 +820,48 @@ 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.
@@ -869,23 +869,23 @@ 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.
@@ -893,9 +893,9 @@ 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);
}
@@ -909,11 +909,11 @@ 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;
@@ -923,7 +923,7 @@ 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;
@@ -944,15 +944,15 @@ 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;
@@ -962,7 +962,7 @@ 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;
}
@@ -993,8 +993,8 @@ 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;
@@ -1008,12 +1008,12 @@ 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 */
@@ -1026,9 +1026,9 @@ 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) {
@@ -1059,29 +1059,29 @@ 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
@@ -1096,13 +1096,13 @@ 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;
@@ -1112,8 +1112,8 @@ 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;
@@ -1125,21 +1125,21 @@ 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;
}
@@ -1150,14 +1150,14 @@ 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);
@@ -1168,7 +1168,7 @@ 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
*
@@ -1177,10 +1177,10 @@ 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;
@@ -1220,26 +1220,26 @@ static int xilinx_vdma_chan_probe(struct xilinx_vdma_device *xdev,
if (!has_dre)
xdev->common.copy_align = fls(width - 1);
- if (of_device_is_compatible(node, "xlnx,axi-vdma-mm2s-channel")) {
+ if (of_device_is_compatible(node, "xlnx,axi-dma-mm2s-channel")) {
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")) {
+ "xlnx,axi-dma-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");
@@ -1248,15 +1248,15 @@ 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);
/*
@@ -1269,7 +1269,7 @@ 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;
@@ -1288,25 +1288,25 @@ 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;
@@ -1359,25 +1359,25 @@ 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;
@@ -1397,48 +1397,48 @@ 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);
--
2.1.2
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