From 67639deb099c6085acc447c1b7d6a17792dedad0 Mon Sep 17 00:00:00 2001 From: Greg Howard Date: Mon, 25 Apr 2005 13:28:52 -0700 Subject: [PATCH] [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: Greg Howard Signed-off-by: Tony Luck --- drivers/char/Makefile | 2 +- drivers/char/snsc.c | 8 ++++++++ drivers/char/snsc.h | 40 ++++++++++++++++++++++++++++++++++++ include/asm-ia64/sn/sn_sal.h | 14 +++++++++++++ 4 files changed, 63 insertions(+), 1 deletion(-) diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 3ea8cc80ea3d..e3f5c32aac55 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -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 diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index ffb9143376bb..e3c0b52d943f 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -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; } diff --git a/drivers/char/snsc.h b/drivers/char/snsc.h index c22c6c55e254..a9efc13cc858 100644 --- a/drivers/char/snsc.h +++ b/drivers/char/snsc.h @@ -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_ */ diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index 123c1a50a9dc..f914f6da077c 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -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 -- 2.30.2