From: Felipe Contreras <felipe.contreras@xxxxxxxxx>
Profiling showed the __delay function is called a lot; checking the mbox
more often seems to decrease the usage by 2/3's according to OProfile.
The changes are based on 'arch/arm/plat-omap/mailbox.c'. Tested on OMAP3430.
Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
drivers/dsp/bridge/wmd/tiomap_sm.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dsp/bridge/wmd/tiomap_sm.c b/drivers/dsp/bridge/wmd/tiomap_sm.c
index 4ad893b..03d9195 100644
--- a/drivers/dsp/bridge/wmd/tiomap_sm.c
+++ b/drivers/dsp/bridge/wmd/tiomap_sm.c
@@ -179,7 +179,7 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext)
#endif
HW_STATUS hwStatus;
struct CFG_HOSTRES resources;
- u16 cnt = 10;
+ u16 cnt = 1000;
u32 temp;
/* We are waiting indefinitely here. This needs to be fixed in the
* second phase */
@@ -222,7 +222,7 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext)
while (--cnt) {
if (!fifo_full((void __iomem *) resources.dwMboxBase, 0))
break;
- mdelay(1);
+ udelay(1);
}
if (!cnt) {
DBG_Trace(DBG_LEVEL7, "Timed out waiting for DSP mailbox \n");
--
1.6.1.3
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
