diff options
Diffstat (limited to 'drivers/platform/goldfish/goldfish_pipe.c')
| -rw-r--r-- | drivers/platform/goldfish/goldfish_pipe.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c index 4f5aa831f549..d9a09d9637d9 100644 --- a/drivers/platform/goldfish/goldfish_pipe.c +++ b/drivers/platform/goldfish/goldfish_pipe.c @@ -56,6 +56,7 @@ #include <linux/bitops.h> #include <linux/slab.h> #include <linux/io.h> +#include <linux/goldfish.h> /* * IMPORTANT: The following constants must match the ones used and defined @@ -66,8 +67,10 @@ #define PIPE_REG_COMMAND 0x00 /* write: value = command */ #define PIPE_REG_STATUS 0x04 /* read */ #define PIPE_REG_CHANNEL 0x08 /* read/write: channel id */ +#define PIPE_REG_CHANNEL_HIGH 0x30 /* read/write: channel id */ #define PIPE_REG_SIZE 0x0c /* read/write: buffer size */ #define PIPE_REG_ADDRESS 0x10 /* write: physical address */ +#define PIPE_REG_ADDRESS_HIGH 0x34 /* write: physical address */ #define PIPE_REG_WAKES 0x14 /* read: wake flags */ #define PIPE_REG_PARAMS_ADDR_LOW 0x18 /* read/write: batch data address */ #define PIPE_REG_PARAMS_ADDR_HIGH 0x1c /* read/write: batch data address */ @@ -109,9 +112,9 @@ #define PIPE_WAKE_WRITE (1 << 2) /* pipe can now be written to */ struct access_params { - u32 channel; + unsigned long channel; u32 size; - u32 address; + unsigned long address; u32 cmd; u32 result; /* reserved for future extension */ @@ -149,13 +152,14 @@ enum { static u32 goldfish_cmd_status(struct goldfish_pipe *pipe, u32 cmd) -{ +{ unsigned long flags; u32 status; struct goldfish_pipe_dev *dev = pipe->dev; spin_lock_irqsave(&dev->lock, flags); - writel((u32)pipe, dev->base + PIPE_REG_CHANNEL); + gf_write64((u64)(unsigned long)pipe, dev->base + PIPE_REG_CHANNEL, + dev->base + PIPE_REG_CHANNEL_HIGH); writel(cmd, dev->base + PIPE_REG_COMMAND); status = readl(dev->base + PIPE_REG_STATUS); spin_unlock_irqrestore(&dev->lock, flags); @@ -163,12 +167,13 @@ static u32 goldfish_cmd_status(struct goldfish_pipe *pipe, u32 cmd) } static void goldfish_cmd(struct goldfish_pipe *pipe, u32 cmd) -{ +{ unsigned long flags; struct goldfish_pipe_dev *dev = pipe->dev; spin_lock_irqsave(&dev->lock, flags); - writel((u32)pipe, dev->base + PIPE_REG_CHANNEL); + gf_write64((u64)(unsigned long)pipe, dev->base + PIPE_REG_CHANNEL, + dev->base + PIPE_REG_CHANNEL_HIGH); writel(cmd, dev->base + PIPE_REG_COMMAND); spin_unlock_irqrestore(&dev->lock, flags); } @@ -322,9 +327,12 @@ static ssize_t goldfish_pipe_read_write(struct file *filp, char __user *buffer, spin_lock_irqsave(&dev->lock, irq_flags); if (access_with_param(dev, CMD_WRITE_BUFFER + cmd_offset, address, avail, pipe, &status)) { - writel((u32)pipe, dev->base + PIPE_REG_CHANNEL); + gf_write64((u64)(unsigned long)pipe, + dev->base + PIPE_REG_CHANNEL, + dev->base + PIPE_REG_CHANNEL_HIGH); writel(avail, dev->base + PIPE_REG_SIZE); - writel(address, dev->base + PIPE_REG_ADDRESS); + gf_write64(address, dev->base + PIPE_REG_ADDRESS, + dev->base + PIPE_REG_ADDRESS_HIGH); writel(CMD_WRITE_BUFFER + cmd_offset, dev->base + PIPE_REG_COMMAND); status = readl(dev->base + PIPE_REG_STATUS); @@ -447,7 +455,15 @@ static irqreturn_t goldfish_pipe_interrupt(int irq, void *dev_id) /* First read the channel, 0 means the end of the list */ struct goldfish_pipe *pipe; unsigned long wakes; - unsigned long channel = readl(dev->base + PIPE_REG_CHANNEL); + unsigned long channel = 0; + +#ifdef CONFIG_64BIT + channel = (u64)readl(dev->base + PIPE_REG_CHANNEL_HIGH) << 32; + + if (channel == 0) + break; +#endif + channel |= readl(dev->base + PIPE_REG_CHANNEL); if (channel == 0) break; |