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-rw-r--r--arch/mips/alchemy/common/dbdma.c22
-rw-r--r--arch/mips/alchemy/common/dma.c15
-rw-r--r--arch/mips/include/asm/mach-au1x00/au1000.h48
-rw-r--r--arch/mips/include/asm/mach-au1x00/au1000_dma.h50
4 files changed, 44 insertions, 91 deletions
diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index 19d5642..745695d 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -341,7 +341,7 @@ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
(dtp->dev_flags & DEV_FLAGS_SYNC))
i |= DDMA_CFG_SYNC;
cp->ddma_cfg = i;
- au_sync();
+ wmb(); /* drain writebuffer */
/*
* Return a non-zero value that can be used to find the channel
@@ -631,7 +631,7 @@ u32 au1xxx_dbdma_put_source(u32 chanid, dma_addr_t buf, int nbytes, u32 flags)
*/
dma_cache_wback_inv((unsigned long)buf, nbytes);
dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */
- au_sync();
+ wmb(); /* drain writebuffer */
dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
ctp->chan_ptr->ddma_dbell = 0;
@@ -693,7 +693,7 @@ u32 au1xxx_dbdma_put_dest(u32 chanid, dma_addr_t buf, int nbytes, u32 flags)
*/
dma_cache_inv((unsigned long)buf, nbytes);
dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */
- au_sync();
+ wmb(); /* drain writebuffer */
dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
ctp->chan_ptr->ddma_dbell = 0;
@@ -760,7 +760,7 @@ void au1xxx_dbdma_stop(u32 chanid)
cp = ctp->chan_ptr;
cp->ddma_cfg &= ~DDMA_CFG_EN; /* Disable channel */
- au_sync();
+ wmb(); /* drain writebuffer */
while (!(cp->ddma_stat & DDMA_STAT_H)) {
udelay(1);
halt_timeout++;
@@ -771,7 +771,7 @@ void au1xxx_dbdma_stop(u32 chanid)
}
/* clear current desc valid and doorbell */
cp->ddma_stat |= (DDMA_STAT_DB | DDMA_STAT_V);
- au_sync();
+ wmb(); /* drain writebuffer */
}
EXPORT_SYMBOL(au1xxx_dbdma_stop);
@@ -789,9 +789,9 @@ void au1xxx_dbdma_start(u32 chanid)
cp = ctp->chan_ptr;
cp->ddma_desptr = virt_to_phys(ctp->cur_ptr);
cp->ddma_cfg |= DDMA_CFG_EN; /* Enable channel */
- au_sync();
+ wmb(); /* drain writebuffer */
cp->ddma_dbell = 0;
- au_sync();
+ wmb(); /* drain writebuffer */
}
EXPORT_SYMBOL(au1xxx_dbdma_start);
@@ -832,7 +832,7 @@ u32 au1xxx_get_dma_residue(u32 chanid)
/* This is only valid if the channel is stopped. */
rv = cp->ddma_bytecnt;
- au_sync();
+ wmb(); /* drain writebuffer */
return rv;
}
@@ -868,7 +868,7 @@ static irqreturn_t dbdma_interrupt(int irq, void *dev_id)
au1x_dma_chan_t *cp;
intstat = dbdma_gptr->ddma_intstat;
- au_sync();
+ wmb(); /* drain writebuffer */
chan_index = __ffs(intstat);
ctp = chan_tab_ptr[chan_index];
@@ -877,7 +877,7 @@ static irqreturn_t dbdma_interrupt(int irq, void *dev_id)
/* Reset interrupt. */
cp->ddma_irq = 0;
- au_sync();
+ wmb(); /* drain writebuffer */
if (ctp->chan_callback)
ctp->chan_callback(irq, ctp->chan_callparam);
@@ -1061,7 +1061,7 @@ static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable)
dbdma_gptr->ddma_config = 0;
dbdma_gptr->ddma_throttle = 0;
dbdma_gptr->ddma_inten = 0xffff;
- au_sync();
+ wmb(); /* drain writebuffer */
ret = request_irq(irq, dbdma_interrupt, 0, "dbdma", (void *)dbdma_gptr);
if (ret)
diff --git a/arch/mips/alchemy/common/dma.c b/arch/mips/alchemy/common/dma.c
index 9b624e2..4fb6207 100644
--- a/arch/mips/alchemy/common/dma.c
+++ b/arch/mips/alchemy/common/dma.c
@@ -141,17 +141,17 @@ void dump_au1000_dma_channel(unsigned int dmanr)
printk(KERN_INFO "Au1000 DMA%d Register Dump:\n", dmanr);
printk(KERN_INFO " mode = 0x%08x\n",
- au_readl(chan->io + DMA_MODE_SET));
+ __raw_readl(chan->io + DMA_MODE_SET));
printk(KERN_INFO " addr = 0x%08x\n",
- au_readl(chan->io + DMA_PERIPHERAL_ADDR));
+ __raw_readl(chan->io + DMA_PERIPHERAL_ADDR));
printk(KERN_INFO " start0 = 0x%08x\n",
- au_readl(chan->io + DMA_BUFFER0_START));
+ __raw_readl(chan->io + DMA_BUFFER0_START));
printk(KERN_INFO " start1 = 0x%08x\n",
- au_readl(chan->io + DMA_BUFFER1_START));
+ __raw_readl(chan->io + DMA_BUFFER1_START));
printk(KERN_INFO " count0 = 0x%08x\n",
- au_readl(chan->io + DMA_BUFFER0_COUNT));
+ __raw_readl(chan->io + DMA_BUFFER0_COUNT));
printk(KERN_INFO " count1 = 0x%08x\n",
- au_readl(chan->io + DMA_BUFFER1_COUNT));
+ __raw_readl(chan->io + DMA_BUFFER1_COUNT));
}
/*
@@ -204,7 +204,8 @@ int request_au1000_dma(int dev_id, const char *dev_str,
}
/* fill it in */
- chan->io = KSEG1ADDR(AU1000_DMA_PHYS_ADDR) + i * DMA_CHANNEL_LEN;
+ chan->io = (void __iomem *)(KSEG1ADDR(AU1000_DMA_PHYS_ADDR) +
+ i * DMA_CHANNEL_LEN);
chan->dev_id = dev_id;
chan->dev_str = dev_str;
chan->fifo_addr = dev->fifo_addr;
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index d664b11..7542070 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -645,54 +645,6 @@
#include <asm/cpu.h>
-/* cpu pipeline flush */
-void static inline au_sync(void)
-{
- __asm__ volatile ("sync");
-}
-
-void static inline au_sync_udelay(int us)
-{
- __asm__ volatile ("sync");
- udelay(us);
-}
-
-void static inline au_sync_delay(int ms)
-{
- __asm__ volatile ("sync");
- mdelay(ms);
-}
-
-void static inline au_writeb(u8 val, unsigned long reg)
-{
- *(volatile u8 *)reg = val;
-}
-
-void static inline au_writew(u16 val, unsigned long reg)
-{
- *(volatile u16 *)reg = val;
-}
-
-void static inline au_writel(u32 val, unsigned long reg)
-{
- *(volatile u32 *)reg = val;
-}
-
-static inline u8 au_readb(unsigned long reg)
-{
- return *(volatile u8 *)reg;
-}
-
-static inline u16 au_readw(unsigned long reg)
-{
- return *(volatile u16 *)reg;
-}
-
-static inline u32 au_readl(unsigned long reg)
-{
- return *(volatile u32 *)reg;
-}
-
/* helpers to access the SYS_* registers */
static inline unsigned long alchemy_rdsys(int regofs)
{
diff --git a/arch/mips/include/asm/mach-au1x00/au1000_dma.h b/arch/mips/include/asm/mach-au1x00/au1000_dma.h
index 7cedca5..0a0cd42 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000_dma.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000_dma.h
@@ -106,7 +106,7 @@ enum {
struct dma_chan {
int dev_id; /* this channel is allocated if >= 0, */
/* free otherwise */
- unsigned int io;
+ void __iomem *io;
const char *dev_str;
int irq;
void *irq_dev;
@@ -157,7 +157,7 @@ static inline void enable_dma_buffer0(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_BE0, chan->io + DMA_MODE_SET);
+ __raw_writel(DMA_BE0, chan->io + DMA_MODE_SET);
}
static inline void enable_dma_buffer1(unsigned int dmanr)
@@ -166,7 +166,7 @@ static inline void enable_dma_buffer1(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_BE1, chan->io + DMA_MODE_SET);
+ __raw_writel(DMA_BE1, chan->io + DMA_MODE_SET);
}
static inline void enable_dma_buffers(unsigned int dmanr)
{
@@ -174,7 +174,7 @@ static inline void enable_dma_buffers(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_BE0 | DMA_BE1, chan->io + DMA_MODE_SET);
+ __raw_writel(DMA_BE0 | DMA_BE1, chan->io + DMA_MODE_SET);
}
static inline void start_dma(unsigned int dmanr)
@@ -183,7 +183,7 @@ static inline void start_dma(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_GO, chan->io + DMA_MODE_SET);
+ __raw_writel(DMA_GO, chan->io + DMA_MODE_SET);
}
#define DMA_HALT_POLL 0x5000
@@ -195,11 +195,11 @@ static inline void halt_dma(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_GO, chan->io + DMA_MODE_CLEAR);
+ __raw_writel(DMA_GO, chan->io + DMA_MODE_CLEAR);
/* Poll the halt bit */
for (i = 0; i < DMA_HALT_POLL; i++)
- if (au_readl(chan->io + DMA_MODE_READ) & DMA_HALT)
+ if (__raw_readl(chan->io + DMA_MODE_READ) & DMA_HALT)
break;
if (i == DMA_HALT_POLL)
printk(KERN_INFO "halt_dma: HALT poll expired!\n");
@@ -215,7 +215,7 @@ static inline void disable_dma(unsigned int dmanr)
halt_dma(dmanr);
/* Now we can disable the buffers */
- au_writel(~DMA_GO, chan->io + DMA_MODE_CLEAR);
+ __raw_writel(~DMA_GO, chan->io + DMA_MODE_CLEAR);
}
static inline int dma_halted(unsigned int dmanr)
@@ -224,7 +224,7 @@ static inline int dma_halted(unsigned int dmanr)
if (!chan)
return 1;
- return (au_readl(chan->io + DMA_MODE_READ) & DMA_HALT) ? 1 : 0;
+ return (__raw_readl(chan->io + DMA_MODE_READ) & DMA_HALT) ? 1 : 0;
}
/* Initialize a DMA channel. */
@@ -239,14 +239,14 @@ static inline void init_dma(unsigned int dmanr)
disable_dma(dmanr);
/* Set device FIFO address */
- au_writel(CPHYSADDR(chan->fifo_addr), chan->io + DMA_PERIPHERAL_ADDR);
+ __raw_writel(CPHYSADDR(chan->fifo_addr), chan->io + DMA_PERIPHERAL_ADDR);
mode = chan->mode | (chan->dev_id << DMA_DID_BIT);
if (chan->irq)
mode |= DMA_IE;
- au_writel(~mode, chan->io + DMA_MODE_CLEAR);
- au_writel(mode, chan->io + DMA_MODE_SET);
+ __raw_writel(~mode, chan->io + DMA_MODE_CLEAR);
+ __raw_writel(mode, chan->io + DMA_MODE_SET);
}
/*
@@ -283,7 +283,7 @@ static inline int get_dma_active_buffer(unsigned int dmanr)
if (!chan)
return -1;
- return (au_readl(chan->io + DMA_MODE_READ) & DMA_AB) ? 1 : 0;
+ return (__raw_readl(chan->io + DMA_MODE_READ) & DMA_AB) ? 1 : 0;
}
/*
@@ -304,7 +304,7 @@ static inline void set_dma_fifo_addr(unsigned int dmanr, unsigned int a)
if (chan->dev_id != DMA_ID_GP04 && chan->dev_id != DMA_ID_GP05)
return;
- au_writel(CPHYSADDR(a), chan->io + DMA_PERIPHERAL_ADDR);
+ __raw_writel(CPHYSADDR(a), chan->io + DMA_PERIPHERAL_ADDR);
}
/*
@@ -316,7 +316,7 @@ static inline void clear_dma_done0(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_D0, chan->io + DMA_MODE_CLEAR);
+ __raw_writel(DMA_D0, chan->io + DMA_MODE_CLEAR);
}
static inline void clear_dma_done1(unsigned int dmanr)
@@ -325,7 +325,7 @@ static inline void clear_dma_done1(unsigned int dmanr)
if (!chan)
return;
- au_writel(DMA_D1, chan->io + DMA_MODE_CLEAR);
+ __raw_writel(DMA_D1, chan->io + DMA_MODE_CLEAR);
}
/*
@@ -344,7 +344,7 @@ static inline void set_dma_addr0(unsigned int dmanr, unsigned int a)
if (!chan)
return;
- au_writel(a, chan->io + DMA_BUFFER0_START);
+ __raw_writel(a, chan->io + DMA_BUFFER0_START);
}
/*
@@ -356,7 +356,7 @@ static inline void set_dma_addr1(unsigned int dmanr, unsigned int a)
if (!chan)
return;
- au_writel(a, chan->io + DMA_BUFFER1_START);
+ __raw_writel(a, chan->io + DMA_BUFFER1_START);
}
@@ -370,7 +370,7 @@ static inline void set_dma_count0(unsigned int dmanr, unsigned int count)
if (!chan)
return;
count &= DMA_COUNT_MASK;
- au_writel(count, chan->io + DMA_BUFFER0_COUNT);
+ __raw_writel(count, chan->io + DMA_BUFFER0_COUNT);
}
/*
@@ -383,7 +383,7 @@ static inline void set_dma_count1(unsigned int dmanr, unsigned int count)
if (!chan)
return;
count &= DMA_COUNT_MASK;
- au_writel(count, chan->io + DMA_BUFFER1_COUNT);
+ __raw_writel(count, chan->io + DMA_BUFFER1_COUNT);
}
/*
@@ -396,8 +396,8 @@ static inline void set_dma_count(unsigned int dmanr, unsigned int count)
if (!chan)
return;
count &= DMA_COUNT_MASK;
- au_writel(count, chan->io + DMA_BUFFER0_COUNT);
- au_writel(count, chan->io + DMA_BUFFER1_COUNT);
+ __raw_writel(count, chan->io + DMA_BUFFER0_COUNT);
+ __raw_writel(count, chan->io + DMA_BUFFER1_COUNT);
}
/*
@@ -410,7 +410,7 @@ static inline unsigned int get_dma_buffer_done(unsigned int dmanr)
if (!chan)
return 0;
- return au_readl(chan->io + DMA_MODE_READ) & (DMA_D0 | DMA_D1);
+ return __raw_readl(chan->io + DMA_MODE_READ) & (DMA_D0 | DMA_D1);
}
@@ -437,10 +437,10 @@ static inline int get_dma_residue(unsigned int dmanr)
if (!chan)
return 0;
- curBufCntReg = (au_readl(chan->io + DMA_MODE_READ) & DMA_AB) ?
+ curBufCntReg = (__raw_readl(chan->io + DMA_MODE_READ) & DMA_AB) ?
DMA_BUFFER1_COUNT : DMA_BUFFER0_COUNT;
- count = au_readl(chan->io + curBufCntReg) & DMA_COUNT_MASK;
+ count = __raw_readl(chan->io + curBufCntReg) & DMA_COUNT_MASK;
if ((chan->mode & DMA_DW_MASK) == DMA_DW16)
count <<= 1;
generated by cgit v0.10.2 at 2024-10-30 10:29:34 (GMT)