[src/trunk]: src/sys/dev/sdmmc Add SCF_NEED_BOUNCE command flag. Can be used ...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/477451e0afb1
branches:  trunk
changeset: 449191:477451e0afb1
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Mon Feb 25 19:28:00 2019 +0000

description:
Add SCF_NEED_BOUNCE command flag. Can be used by a driver to keep track of
which command(s) need data transfers to go through DMA bounce buffers.

diffstat:

 sys/dev/sdmmc/sdmmcvar.h |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (17 lines):

diff -r ca6a083926f3 -r 477451e0afb1 sys/dev/sdmmc/sdmmcvar.h
--- a/sys/dev/sdmmc/sdmmcvar.h  Mon Feb 25 13:19:14 2019 +0000
+++ b/sys/dev/sdmmc/sdmmcvar.h  Mon Feb 25 19:28:00 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sdmmcvar.h,v 1.29 2017/08/20 15:58:43 mlelstv Exp $    */
+/*     $NetBSD: sdmmcvar.h,v 1.30 2019/02/25 19:28:00 jmcneill Exp $   */
 /*     $OpenBSD: sdmmcvar.h,v 1.13 2009/01/09 10:55:22 jsg Exp $       */
 
 /*
@@ -126,6 +126,7 @@
 /* Command hints */
 #define SCF_XFER_SDHC  (1U << 15)      /* card is SDHC */
 #define SCF_POLL       (1U << 16)      /* polling required */
+#define SCF_NEED_BOUNCE        (1U << 17)      /* (driver) transfer requires bounce buffer */
 /* response types */
 #define SCF_RSP_R0     0       /* none */
 #define SCF_RSP_R1     (SCF_RSP_PRESENT|SCF_RSP_CRC|SCF_RSP_IDX)