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Commit 67639deb authored by Greg Howard's avatar Greg Howard Committed by Tony Luck
Browse files

[IA64] Altix system controller event handling 



The following is an update of the patch I sent yesterday
(3/9/05) incorporating suggestions from Christoph Hellwig and
Andreas Schwab.  It allows Altix and Altix-like systems to
handle environmental events generated by the system controllers,
and should apply on top of Jack Steiner's patch of 3/1/05 ("New
chipset support for SN platform") and Mark Goodwin's patch of
3/8/05 ("Altix SN topology support for new chipsets and pci
topology").

Signed-off-by: default avatarGreg Howard <ghoward@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent b9e41d7f

drivers/char/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ obj-$(CONFIG_SX) += sx.o generic_serial.o 
obj-$(CONFIG_RIO)		+= rio/ generic_serial.o

obj-$(CONFIG_HVC_CONSOLE)	+= hvc_console.o hvsi.o

obj-$(CONFIG_RAW_DRIVER)	+= raw.o

obj-$(CONFIG_SGI_SNSC)		+= snsc.o

obj-$(CONFIG_SGI_SNSC)		+= snsc.o snsc_event.o

obj-$(CONFIG_MMTIMER)		+= mmtimer.o

obj-$(CONFIG_VIOCONS) += viocons.o

obj-$(CONFIG_VIOTAPE)		+= viotape.o

drivers/char/snsc.c

+8 −0
Original line number Diff line number Diff line
@@ -374,6 +374,7 @@ scdrv_init(void) 
	void *salbuf;

	struct class_simple *snsc_class;

	dev_t first_dev, dev;

	nasid_t event_nasid = ia64_sn_get_console_nasid();



	if (alloc_chrdev_region(&first_dev, 0, numionodes,

				SYSCTL_BASENAME) < 0) {
@@ -441,6 +442,13 @@ scdrv_init(void) 
			ia64_sn_irtr_intr_enable(scd->scd_nasid,

						 0 /*ignored */ ,

						 SAL_IROUTER_INTR_RECV);



                        /* on the console nasid, prepare to receive

                         * system controller environmental events

                         */

                        if(scd->scd_nasid == event_nasid) {

                                scdrv_event_init(scd);

                        }

	}

	return 0;

}

drivers/char/snsc.h

+40 −0
Original line number Diff line number Diff line
@@ -47,4 +47,44 @@ struct sysctl_data_s { 
	nasid_t scd_nasid;	/* Node on which subchannels are opened. */

};





/* argument types */

#define IR_ARG_INT              0x00    /* 4-byte integer (big-endian)  */

#define IR_ARG_ASCII            0x01    /* null-terminated ASCII string */

#define IR_ARG_UNKNOWN          0x80    /* unknown data type.  The low

                                         * 7 bits will contain the data

                                         * length.                      */

#define IR_ARG_UNKNOWN_LENGTH_MASK	0x7f





/* system controller event codes */

#define EV_CLASS_MASK		0xf000ul

#define EV_SEVERITY_MASK	0x0f00ul

#define EV_COMPONENT_MASK	0x00fful



#define EV_CLASS_POWER		0x1000ul

#define EV_CLASS_FAN		0x2000ul

#define EV_CLASS_TEMP		0x3000ul

#define EV_CLASS_ENV		0x4000ul

#define EV_CLASS_TEST_FAULT	0x5000ul

#define EV_CLASS_TEST_WARNING	0x6000ul

#define EV_CLASS_PWRD_NOTIFY	0x8000ul



#define EV_SEVERITY_POWER_STABLE	0x0000ul

#define EV_SEVERITY_POWER_LOW_WARNING	0x0100ul

#define EV_SEVERITY_POWER_HIGH_WARNING	0x0200ul

#define EV_SEVERITY_POWER_HIGH_FAULT	0x0300ul

#define EV_SEVERITY_POWER_LOW_FAULT	0x0400ul



#define EV_SEVERITY_FAN_STABLE		0x0000ul

#define EV_SEVERITY_FAN_WARNING		0x0100ul

#define EV_SEVERITY_FAN_FAULT		0x0200ul



#define EV_SEVERITY_TEMP_STABLE		0x0000ul

#define EV_SEVERITY_TEMP_ADVISORY	0x0100ul

#define EV_SEVERITY_TEMP_CRITICAL	0x0200ul

#define EV_SEVERITY_TEMP_FAULT		0x0300ul



void scdrv_event_init(struct sysctl_data_s *);



#endif /* _SN_SYSCTL_H_ */

include/asm-ia64/sn/sn_sal.h

+14 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ 


#define  SN_SAL_SYSCTL_IOBRICK_PCI_OP		   0x02000042	// reentrant

#define	 SN_SAL_IROUTER_OP			   0x02000043

#define  SN_SAL_SYSCTL_EVENT                       0x02000044

#define  SN_SAL_IOIF_INTERRUPT			   0x0200004a

#define  SN_SAL_HWPERF_OP			   0x02000050   // lock

#define  SN_SAL_IOIF_ERROR_INTERRUPT		   0x02000051
@@ -850,6 +851,19 @@ ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr) 
	return (int) rv.v0;

}



/*

 * Set up a node as the point of contact for system controller

 * environmental event delivery.

 */

static inline int

ia64_sn_sysctl_event_init(nasid_t nasid)

{

        struct ia64_sal_retval rv;

        SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,

			   0, 0, 0, 0, 0, 0);

        return (int) rv.v0;

}



/**

 * ia64_sn_get_fit_compt - read a FIT entry from the PROM header

 * @nasid: NASID of node to read