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[src/trunk]: src/sys/dev/ic mvsata(4) DMA data structures are already __packe...
details: https://anonhg.NetBSD.org/src/rev/24eda05fd54b
branches: trunk
changeset: 781247:24eda05fd54b
user: jakllsch <jakllsch%NetBSD.org@localhost>
date: Wed Aug 29 16:50:10 2012 +0000
description:
mvsata(4) DMA data structures are already __packed, but as the hardware
requires them to be 8-byte aligned, add __aligned(8) too, so that accesses
on strict alignment platforms are more efficent.
diffstat:
sys/dev/ic/mvsatareg.h | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diffs (45 lines):
diff -r 4e2786b89507 -r 24eda05fd54b sys/dev/ic/mvsatareg.h
--- a/sys/dev/ic/mvsatareg.h Wed Aug 29 16:48:11 2012 +0000
+++ b/sys/dev/ic/mvsatareg.h Wed Aug 29 16:50:10 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mvsatareg.h,v 1.2 2012/07/23 14:07:03 jakllsch Exp $ */
+/* $NetBSD: mvsatareg.h,v 1.3 2012/08/29 16:50:10 jakllsch Exp $ */
/*
* Copyright (c) 2008 KIYOHARA Takashi
* All rights reserved.
@@ -254,7 +254,7 @@
uint32_t cprdbh; /* cPRD Desriptor Table Base High Address */
uint16_t ctrlflg; /* Control Flags */
uint16_t atacommand[11];
-} __packed;
+} __packed __aligned(8);
struct crqb_gen2e {
uint32_t cprdbl; /* cPRD Desriptor Table Base Low Address */
@@ -262,7 +262,7 @@
uint32_t ctrlflg; /* Control Flags */
uint32_t drbc; /* Data Region Byte Count */
uint32_t atacommand[4];
-} __packed;
+} __packed __aligned(8);
#define CRQB_CRQBL_EPRD_MASK 0xfffffff0
@@ -301,7 +301,7 @@
uint16_t eot; /* End Of Table */
uint32_t prdbah; /* address bits[63:32] */
uint32_t resv;
-} __packed;
+} __packed __aligned(8);
#define EPRD_PRDBAL_MASK 0xfffffffe /* phy memory region mask */
@@ -314,7 +314,7 @@
uint16_t id; /* CRPB ID */
uint16_t rspflg; /* CPRB Response Flags */
uint32_t ts; /* CPRB Time Stamp */
-} __packed;
+} __packed __aligned(8);
/* ID */
#define CRPB_CHOSTQUETAG(x) (((x) >> 0) & 0x7f) /* CRPB Host Q Tag */
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