From: Christoph Lameter <clameter@sgi.com>
To: linux-mm@kvack.org
Cc: Christoph Lameter <clameter@sgi.com>
Subject: [PATCH 2/6] Introduce CONFIG_ZONE_DMA
Date: Mon, 11 Sep 2006 15:30:12 -0700 (PDT) [thread overview]
Message-ID: <20060911223012.5032.53231.sendpatchset@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20060911223001.5032.24593.sendpatchset@schroedinger.engr.sgi.com>
Introduce CONFIG_ZONE_DMA
This patch simply defines CONFIG_ZONE_DMA for all arches. We later do
special things with CONFIG_ZONE_DMA after the VM and an arch are
prepared to work without ZONE_DMA.
CONFIG_ZONE_DMA can be defined in two ways depending on how
an architecture handles ISA DMA.
First if CONFIG_GENERIC_ISA_DMA is set by the arch then we know that
the arch needs ZONE_DMA because ISA DMA devices are supported. We
can catch this in mm/Kconfig and do not need to modify arch code.
Second, arches may use ZONE_DMA in an unknown way. We set CONFIG_ZONE_DMA
for all arches that do not set CONFIG_GENERIC_ISA_DMA in order to insure
backwards compatibility. The arches may later undefine ZONE_DMA
if their arch code has been verified to not depend on ZONE_DMA.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Index: linux-2.6.18-rc6-mm1/mm/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/mm/Kconfig 2006-09-11 15:42:32.736665338 -0500
+++ linux-2.6.18-rc6-mm1/mm/Kconfig 2006-09-11 15:53:12.072397960 -0500
@@ -139,6 +139,10 @@
default "4096" if PARISC && !PA20
default "4"
+config ZONE_DMA
+ def_bool y
+ depends on GENERIC_ISA_DMA
+
#
# support for page migration
#
Index: linux-2.6.18-rc6-mm1/arch/ia64/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/ia64/Kconfig 2006-09-11 15:42:32.746431796 -0500
+++ linux-2.6.18-rc6-mm1/arch/ia64/Kconfig 2006-09-11 15:53:12.089977582 -0500
@@ -22,6 +22,10 @@
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config MMU
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/cris/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/cris/Kconfig 2006-09-11 15:42:32.754244962 -0500
+++ linux-2.6.18-rc6-mm1/arch/cris/Kconfig 2006-09-11 15:53:12.101697331 -0500
@@ -9,6 +9,10 @@
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/s390/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/s390/Kconfig 2006-09-11 15:42:32.764988066 -0500
+++ linux-2.6.18-rc6-mm1/arch/s390/Kconfig 2006-09-11 15:53:12.112440433 -0500
@@ -7,6 +7,10 @@
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config LOCKDEP_SUPPORT
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/xtensa/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/xtensa/Kconfig 2006-09-11 15:42:32.773777878 -0500
+++ linux-2.6.18-rc6-mm1/arch/xtensa/Kconfig 2006-09-11 15:53:12.124160181 -0500
@@ -7,6 +7,10 @@
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config XTENSA
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/h8300/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/h8300/Kconfig 2006-09-11 15:42:32.782567690 -0500
+++ linux-2.6.18-rc6-mm1/arch/h8300/Kconfig 2006-09-11 15:53:12.134903284 -0500
@@ -17,6 +17,10 @@
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config FPU
bool
default n
Index: linux-2.6.18-rc6-mm1/arch/v850/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/v850/Kconfig 2006-09-11 15:42:32.791357502 -0500
+++ linux-2.6.18-rc6-mm1/arch/v850/Kconfig 2006-09-11 15:53:12.145646386 -0500
@@ -10,6 +10,9 @@
config MMU
bool
default n
+config ZONE_DMA
+ bool
+ default y
config RWSEM_GENERIC_SPINLOCK
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/sh/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/sh/Kconfig 2006-09-11 15:42:32.800147314 -0500
+++ linux-2.6.18-rc6-mm1/arch/sh/Kconfig 2006-09-11 15:53:12.158342780 -0500
@@ -14,6 +14,10 @@
gaming console. The SuperH port has a home page at
<http://www.linux-sh.org/>.
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/frv/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/frv/Kconfig 2006-09-11 15:42:32.808937126 -0500
+++ linux-2.6.18-rc6-mm1/arch/frv/Kconfig 2006-09-11 15:53:12.171039174 -0500
@@ -6,6 +6,10 @@
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
Index: linux-2.6.18-rc6-mm1/arch/m68knommu/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm1.orig/arch/m68knommu/Kconfig 2006-09-11 15:42:32.820656875 -0500
+++ linux-2.6.18-rc6-mm1/arch/m68knommu/Kconfig 2006-09-11 15:53:12.183735568 -0500
@@ -17,6 +17,10 @@
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2006-09-12 1:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-11 22:30 [PATCH 0/8] Optional ZONE_DMA V1 Christoph Lameter
2006-09-11 22:30 ` [PATCH 1/6] Deal with cases of ZONE_DMA meaning the first zone Christoph Lameter
2006-09-11 22:30 ` Christoph Lameter [this message]
2006-09-11 22:30 ` [PATCH 3/6] Optional ZONE_DMA in the VM Christoph Lameter
2006-09-11 22:30 ` [PATCH 4/6] Optional ZONE_DMA for i386 Christoph Lameter
2006-09-11 22:30 ` [PATCH 5/6] Optional ZONE_DMA for x86_64 Christoph Lameter
2006-09-11 22:30 ` [PATCH 6/6] Optional ZONE_DMA for ia64 Christoph Lameter
2006-09-18 18:36 [PATCH 0/8] Optional ZONE_DMA V2 Christoph Lameter
2006-09-18 18:36 ` [PATCH 8/8] Remove ZONE_DMA remains from sh/sh64 Christoph Lameter
[not found] ` <20060911222729.4849.69497.sendpatchset@schroedinger.engr.sgi.com>
[not found] ` <20060911222739.4849.79915.sendpatchset@schroedinger.engr.sgi.com>
[not found] ` <20060918135559.GB15096@infradead.org>
[not found] ` <20060918152243.GA4320@localhost.na.rta>
2006-09-18 17:33 ` [PATCH 2/6] Introduce CONFIG_ZONE_DMA Christoph Lameter
2006-09-18 22:45 ` Paul Mundt
2006-09-18 22:58 ` Christoph Lameter
2006-09-18 23:25 ` Paul Mundt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060911223012.5032.53231.sendpatchset@schroedinger.engr.sgi.com \
--to=clameter@sgi.com \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox