[PATCH] ioc4: Enable build on non-SN2
The SGI PCI-RT card, based on the SGI IOC4 chip, will be made available on
Altix XE (x86_64) platforms in the near future. As such it is now a
misnomer for the IOC4 base device driver to live under drivers/sn, and
would complicate builds for non-SN2.
This patch moves the IOC4 base driver code from drivers/sn to drivers/misc,
and updates the associated Makefiles and Kconfig files to allow building on
non-SN2 configs. Due to the resulting change in link order, it is now
necessary to use late_initcall() for IOC4 subdriver initialization.
[akpm@osdl.org: __udivdi3 fix]
[akpm@osdl.org: fix default in Kconfig]
Acked-by: Pat Gefre <pfg@sgi.com>
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 263e86d..f394634 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -14,6 +14,10 @@
source "drivers/block/Kconfig"
+# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
+
+source "drivers/misc/Kconfig"
+
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
@@ -52,8 +56,6 @@
source "drivers/hwmon/Kconfig"
-source "drivers/misc/Kconfig"
-
source "drivers/mfd/Kconfig"
source "drivers/media/Kconfig"
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index f3fe287..244f7eb 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -774,7 +774,7 @@
ioc4_unregister_submodule(&ioc4_ide_submodule);
}
-module_init(ioc4_ide_init);
+late_initcall(ioc4_ide_init); /* Call only after IDE init is done */
module_exit(ioc4_ide_exit);
MODULE_AUTHOR("Aniket Malatpure/Jeremy Higdon");
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index fa7acc2..b6c045d 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -28,6 +28,17 @@
If unsure, say N.
+config SGI_IOC4
+ tristate "SGI IOC4 Base IO support"
+ ---help---
+ This option enables basic support for the IOC4 chip on certain
+ SGI IO controller cards (IO9, IO10, and PCI-RT). This option
+ does not enable any specific functions on such a card, but provides
+ necessary infrastructure for other drivers to utilize.
+
+ If you have an SGI Altix with an IOC4-based card say Y.
+ Otherwise say N.
+
config TIFM_CORE
tristate "TI Flash Media interface support (EXPERIMENTAL)"
depends on EXPERIMENTAL
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 9a91c1e..c9e98ab 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -9,3 +9,4 @@
obj-$(CONFIG_LKDTM) += lkdtm.o
obj-$(CONFIG_TIFM_CORE) += tifm_core.o
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
+obj-$(CONFIG_SGI_IOC4) += ioc4.o
diff --git a/drivers/sn/ioc4.c b/drivers/misc/ioc4.c
similarity index 98%
rename from drivers/sn/ioc4.c
rename to drivers/misc/ioc4.c
index 83d2e90..1c3c14a 100644
--- a/drivers/sn/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -32,9 +32,6 @@
#include <linux/ktime.h>
#include <linux/mutex.h>
#include <linux/time.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/clksupport.h>
-#include <asm/sn/shub_mmr.h>
/***************
* Definitions *
@@ -208,10 +205,12 @@
IOC4_CALIBRATE_DEFAULT / IOC4_EXTINT_COUNT_DIVISOR);
period = IOC4_CALIBRATE_DEFAULT;
} else {
+ u64 ns = period;
+
+ do_div(ns, IOC4_EXTINT_COUNT_DIVISOR);
printk(KERN_DEBUG
- "IOC4 %s: PCI clock is %ld ns.\n",
- pci_name(idd->idd_pdev),
- period / IOC4_EXTINT_COUNT_DIVISOR);
+ "IOC4 %s: PCI clock is %lld ns.\n",
+ pci_name(idd->idd_pdev), ns);
}
/* Remember results. We store the extint clock period rather
diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index 98ce88d..ff4fa25 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -2935,7 +2935,7 @@
uart_unregister_driver(&ioc4_uart_rs422);
}
-module_init(ioc4_serial_init);
+late_initcall(ioc4_serial_init); /* Call only after tty init is done */
module_exit(ioc4_serial_exit);
MODULE_AUTHOR("Pat Gefre - Silicon Graphics Inc. (SGI) <pfg@sgi.com>");
diff --git a/drivers/sn/Kconfig b/drivers/sn/Kconfig
index 34d4fde..c66ba9a 100644
--- a/drivers/sn/Kconfig
+++ b/drivers/sn/Kconfig
@@ -5,18 +5,6 @@
menu "SN Devices"
depends on SGI_SN
-config SGI_IOC4
- tristate "SGI IOC4 Base IO support"
- default m
- ---help---
- This option enables basic support for the IOC4 chip on certain
- SGI IO controller cards (IO9, IO10, and PCI-RT). This option
- does not enable any specific functions on such a card, but provides
- necessary infrastructure for other drivers to utilize.
-
- If you have an SGI Altix with an IOC4-based card say Y.
- Otherwise say N.
-
config SGI_IOC3
tristate "SGI IOC3 Base IO support"
default m
diff --git a/drivers/sn/Makefile b/drivers/sn/Makefile
index 2cda011..693db8b 100644
--- a/drivers/sn/Makefile
+++ b/drivers/sn/Makefile
@@ -3,5 +3,4 @@
#
#
-obj-$(CONFIG_SGI_IOC4) += ioc4.o
obj-$(CONFIG_SGI_IOC3) += ioc3.o