diff options
Diffstat (limited to 'target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch')
| -rw-r--r-- | target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch b/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch new file mode 100644 index 000000000..0f235094c --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch @@ -0,0 +1,87 @@ +From 60c0c5987b0996a7c7c4c6d90f63ed413c368a71 Mon Sep 17 00:00:00 2001 +From: Geoff Levand <geoffrey.levand@am.sony.com> +Date: Wed, 7 Jan 2009 17:22:02 -0800 +Subject: [PATCH] mtd/ps3vram: Use msleep in waits + +Replace the use of udelay() with msleep() in the looping wait routines +ps3vram_notifier_wait() and ps3vram_wait_ring(). + +Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> +Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> +--- + drivers/mtd/devices/ps3vram.c | 42 +++++++++++++++++----------------------- + 1 files changed, 18 insertions(+), 24 deletions(-) + +diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c +index 91cc2af..d592414 100644 +--- a/drivers/mtd/devices/ps3vram.c ++++ b/drivers/mtd/devices/ps3vram.c +@@ -109,22 +109,19 @@ static void ps3vram_notifier_reset(struct mtd_info *mtd) + notify[i] = 0xffffffff; + } + +-static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms) ++static int ps3vram_notifier_wait(struct mtd_info *mtd, unsigned int timeout_ms) + { + struct ps3vram_priv *priv = mtd->priv; + u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER); +- +- timeout_ms *= 1000; ++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); + + do { +- if (notify[3] == 0) ++ if (!notify[3]) + return 0; ++ msleep(1); ++ } while (time_before(jiffies, timeout)); + +- if (timeout_ms) +- udelay(1); +- } while (timeout_ms--); +- +- return -1; ++ return -ETIMEDOUT; + } + + static void ps3vram_init_ring(struct mtd_info *mtd) +@@ -135,25 +132,22 @@ static void ps3vram_init_ring(struct mtd_info *mtd) + priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET; + } + +-static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout) ++static int ps3vram_wait_ring(struct mtd_info *mtd, unsigned int timeout_ms) + { + struct ps3vram_priv *priv = mtd->priv; ++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); + +- /* wait until setup commands are processed */ +- timeout *= 1000; +- while (--timeout) { ++ do { + if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET]) +- break; +- udelay(1); +- } +- if (timeout == 0) { +- dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", +- __func__, __LINE__, priv->ctrl[CTRL_PUT], +- priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]); +- return -ETIMEDOUT; +- } ++ return 0; ++ msleep(1); ++ } while (time_before(jiffies, timeout)); + +- return 0; ++ dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", __func__, ++ __LINE__, priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET], ++ priv->ctrl[CTRL_TOP]); ++ ++ return -ETIMEDOUT; + } + + static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data) +-- +1.6.0.4 + |