diff options
| author | Per Forlin <per.forlin@stericsson.com> | 2011-09-28 09:32:20 +0200 |
|---|---|---|
| committer | Robert Marklund <robert.marklund@stericsson.com> | 2011-10-27 16:08:40 +0200 |
| commit | 09b9b5280cef6341285b7c72a79c8167db3838cf (patch) | |
| tree | be72f7379b787c1b210191becf157d26c360176c | |
| parent | 81082f5eb6a5a70319bce00fc19f0bce4abf330b (diff) | |
dmaengine/ste_dma40: use writel_relaxed for lcxa
lcpa and lcla are written often and the cache_sync()
overhead in writel is costly, especially for wlan where
every single network packet (in RX mode) corresponds
to a separate DMA transfer.
ST-Ericsson Linux next: TESTED
ST-Ericsson ID: 357764
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: I8339704de95f2355d22681ac4bd542795770fa89
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33009
Reviewed-by: Narayanan GOPALAKRISHNAN <narayanan.gopalakrishnan@stericsson.com>
Reviewed-by: QABUILD
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
| -rw-r--r-- | drivers/dma/ste_dma40_ll.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c index 94177e2c4e8..017df1d2824 100644 --- a/drivers/dma/ste_dma40_ll.c +++ b/drivers/dma/ste_dma40_ll.c @@ -313,10 +313,10 @@ void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa, { d40_log_lli_link(lli_dst, lli_src, next, interrupt); - writel(lli_src->lcsp02, &lcpa[0].lcsp0); - writel(lli_src->lcsp13, &lcpa[0].lcsp1); - writel(lli_dst->lcsp02, &lcpa[0].lcsp2); - writel(lli_dst->lcsp13, &lcpa[0].lcsp3); + writel_relaxed(lli_src->lcsp02, &lcpa[0].lcsp0); + writel_relaxed(lli_src->lcsp13, &lcpa[0].lcsp1); + writel_relaxed(lli_dst->lcsp02, &lcpa[0].lcsp2); + writel_relaxed(lli_dst->lcsp13, &lcpa[0].lcsp3); } void d40_log_lli_lcla_write(struct d40_log_lli *lcla, @@ -327,10 +327,10 @@ void d40_log_lli_lcla_write(struct d40_log_lli *lcla, { d40_log_lli_link(lli_dst, lli_src, next, interrupt); - writel(lli_src->lcsp02, &lcla[0].lcsp02); - writel(lli_src->lcsp13, &lcla[0].lcsp13); - writel(lli_dst->lcsp02, &lcla[1].lcsp02); - writel(lli_dst->lcsp13, &lcla[1].lcsp13); + writel_relaxed(lli_src->lcsp02, &lcla[0].lcsp02); + writel_relaxed(lli_src->lcsp13, &lcla[0].lcsp13); + writel_relaxed(lli_dst->lcsp02, &lcla[1].lcsp02); + writel_relaxed(lli_dst->lcsp13, &lcla[1].lcsp13); } void d40_log_fill_lli(struct d40_log_lli *lli, |