static ssize_t ps3flash_write_chunk(struct ps3_storage_device *dev,
u64 start_sector)
{
u64 sectors = dev->bounce_size / dev->blk_size;
return ps3flash_read_write_sectors(dev, dev->bounce_lpar, start_sector,
sectors, 1);
}
static int ps3flash_writeback(struct ps3_storage_device *dev)
{
struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
int res;
if (!priv->dirty || priv->tag < 0)
return 0;
res = ps3flash_read_write_sectors(dev, priv->tag, 1);
if (res)
return res;
priv->dirty = false;
return 0;
}
static ssize_t ps3flash_read_sectors(struct ps3_storage_device *dev,
u64 start_sector, u64 sectors,
unsigned int sector_offset)
{
u64 max_sectors, lpar;
max_sectors = dev->bounce_size / dev->blk_size;
if (sectors > max_sectors) {
dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %lu\n",
__func__, __LINE__, max_sectors);
sectors = max_sectors;
}
lpar = dev->bounce_lpar + sector_offset * dev->blk_size;
return ps3flash_read_write_sectors(dev, lpar, start_sector, sectors,
0);
}
static int ps3flash_fetch(struct ps3_storage_device *dev, u64 start_sector)
{
struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
int res;
if (start_sector == priv->tag)
return 0;
res = ps3flash_writeback(dev);
if (res)
return res;
priv->tag = -1;
res = ps3flash_read_write_sectors(dev, start_sector, 0);
if (res)
return res;
priv->tag = start_sector;
return 0;
}
