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goldfish: clean up the pipe driver 64bit ifdefs 

Use the 64bit helper method to scrub most of the ifdefs from the driver. The
pipe reading has a funny case we can't scrub completely.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan 2014-05-12 16:57:22 +01:00 committed by Greg Kroah-Hartman
parent d78055dc9c
commit a99698facd
1 changed files with 11 additions and 22 deletions
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33
drivers/platform/goldfish/goldfish_pipe.c
View File

@ -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
@ -66,14 +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 */
#ifdef CONFIG_64BIT
#define PIPE_REG_CHANNEL_HIGH 0x30 /* read/write: channel id */
#endif
#define PIPE_REG_SIZE 0x0c /* read/write: buffer size */
#define PIPE_REG_ADDRESS 0x10 /* write: physical address */
#ifdef CONFIG_64BIT
#define PIPE_REG_ADDRESS_HIGH 0x34 /* write: physical address */
#endif
#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 */
@ -155,16 +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)(u64)pipe, dev->base + PIPE_REG_CHANNEL);
#ifdef CONFIG_64BIT
writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);
#endif
gf_write64((u64)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);
@ -172,15 +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)(u64)pipe, dev->base + PIPE_REG_CHANNEL);
#ifdef CONFIG_64BIT
writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);
#endif
gf_write64((u64)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);
}
@ -334,15 +327,11 @@ 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)(u64)pipe, dev->base + PIPE_REG_CHANNEL);
#ifdef CONFIG_64BIT
writel((u32)((u64)pipe >> 32), dev->base + PIPE_REG_CHANNEL_HIGH);
#endif
gf_write64((u64)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);
#ifdef CONFIG_64BIT
writel((u32)((u64)address >> 32), dev->base + PIPE_REG_ADDRESS_HIGH);
#endif
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);