Commit 59f14800 authored by Brent Casavant's avatar Brent Casavant Committed by Linus Torvalds
Browse files

[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: default avatarPat Gefre <pfg@sgi.com>
Acked-by: default avatarJeremy Higdon <jeremy@sgi.com>
Signed-off-by: default avatarBrent Casavant <bcasavan@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 107d5a72

drivers/Kconfig

+4 −2
Original line number Diff line number Diff line
@@ -14,6 +14,10 @@ source "drivers/pnp/Kconfig" 


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/w1/Kconfig" 


source "drivers/hwmon/Kconfig"



source "drivers/misc/Kconfig"



source "drivers/mfd/Kconfig"



source "drivers/media/Kconfig"

drivers/ide/pci/sgiioc4.c

+1 −1
Original line number Diff line number Diff line
@@ -774,7 +774,7 @@ ioc4_ide_exit(void) 
	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");

drivers/misc/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -28,6 +28,17 @@ config IBM_ASM 


	  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

drivers/misc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -9,3 +9,4 @@ obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o 
obj-$(CONFIG_LKDTM)		+= lkdtm.o

obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o

obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o

obj-$(CONFIG_SGI_IOC4)		+= ioc4.o

drivers/sn/ioc4.c→drivers/misc/ioc4.c

+5 −6
Original line number Diff line number Diff line
@@ -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_clock_calibrate(struct ioc4_driver_data *idd) 
		       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

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