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[src/trunk]: src/sys/arch/arm/sunxi Use new magic values from linux for DMACR...
details: https://anonhg.NetBSD.org/src/rev/d292499f94d8
branches: trunk
changeset: 841422:d292499f94d8
user: bouyer <bouyer%NetBSD.org@localhost>
date: Mon May 13 16:55:17 2019 +0000
description:
Use new magic values from linux for DMACR. While I couldn't measure any
significant difference with my old, slow laptop drive, linux commiter claims
a 3x write performance boost (from 40 to 120MB/s) and 200MB/s read with
a ssd.
diffstat:
sys/arch/arm/sunxi/sunxi_sata.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diffs (29 lines):
diff -r ea6594095e40 -r d292499f94d8 sys/arch/arm/sunxi/sunxi_sata.c
--- a/sys/arch/arm/sunxi/sunxi_sata.c Mon May 13 14:29:41 2019 +0000
+++ b/sys/arch/arm/sunxi/sunxi_sata.c Mon May 13 16:55:17 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_sata.c,v 1.1 2017/10/07 15:12:35 jmcneill Exp $ */
+/* $NetBSD: sunxi_sata.c,v 1.2 2019/05/13 16:55:17 bouyer Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -28,7 +28,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_sata.c,v 1.1 2017/10/07 15:12:35 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_sata.c,v 1.2 2019/05/13 16:55:17 bouyer Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -55,8 +55,8 @@
uint32_t val;
val = AHCI_READ(sc, dma_reg);
- val &= ~0xff00;
- val |= 0x4400;
+ val &= ~0xffff;
+ val |= 0x4433;
AHCI_WRITE(sc, dma_reg, val);
}
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