patch-2.4.4 linux/arch/ia64/sn/sn1/error.c

• Lines: 150
• Date: Thu Apr 5 12:51:47 2001
• Orig file: v2.4.3/linux/arch/ia64/sn/sn1/error.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.3/linux/arch/ia64/sn/sn1/error.c linux/arch/ia64/sn/sn1/error.c
@@ -0,0 +1,149 @@
+
+
+/*
+ * SN1 Platform specific error Support
+ *
+ * Copyright (C) 2001 Silicon Graphics, Inc.
+ * Copyright (C) 2001 Alan Mayer (ajm@sgi.com)
+ */
+
+
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+
+#include <asm/ptrace.h>
+#include <linux/devfs_fs_kernel.h>
+#include <asm/smp.h>
+#include <asm/sn/sn_cpuid.h>
+#include <asm/sn/sn1/bedrock.h>
+#include <asm/sn/intr.h>
+#include <asm/sn/addrs.h>
+
+void
+snia_error_intr_handler(int irq, void *devid, struct pt_regs *pt_regs) {
+	unsigned long long intpend_val;
+	unsigned long long bit;
+
+	switch (irq) {
+	case SGI_UART_IRQ:
+		// This isn't really an error interrupt.  We're just
+		// here because we have to do something with them.
+		// This is probably wrong, and this code will be
+		// removed.
+		intpend_val = LOCAL_HUB_L(PI_INT_PEND0);
+		if ( (bit = ~(1L<<GFX_INTR_A)) ==
+			(intpend_val & ~(1L<<GFX_INTR_A)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		if ( (bit = ~(1L<<GFX_INTR_B)) ==
+			(intpend_val & ~(1L<<GFX_INTR_B)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		if ( (bit = ~(1L<<PG_MIG_INTR)) ==
+			(intpend_val & ~(1L<<PG_MIG_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		if ( (bit = ~(1L<<UART_INTR)) ==
+			(intpend_val & ~(1L<<UART_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		if ( (bit = ~(1L<<CC_PEND_A)) ==
+			(intpend_val & ~(1L<<CC_PEND_A)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		if ( (bit = ~(1L<<CC_PEND_B)) ==
+			(intpend_val & ~(1L<<CC_PEND_B)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			return;
+		}
+		printk("Received SGI_UART_IRQ (65), but no intpend0 bits were set???\n");
+		return;
+	case SGI_HUB_ERROR_IRQ:
+		// These are mostly error interrupts of various
+		// sorts.  We need to do more than panic here, but
+		// what the heck, this is bring up.
+		intpend_val = LOCAL_HUB_L(PI_INT_PEND1);
+		
+		if ( (bit = ~(1L<<XB_ERROR)) ==
+			(intpend_val & ~(1L<<XB_ERROR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED XB_ERROR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<LB_ERROR)) ==
+			(intpend_val & ~(1L<<LB_ERROR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED LB_ERROR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<NACK_INT_A)) ==
+			(intpend_val & ~(1L<<NACK_INT_A)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED NACK_INT_A on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<NACK_INT_B)) ==
+			(intpend_val & ~(1L<<NACK_INT_B)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED NACK_INT_B on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<CLK_ERR_INTR)) ==
+			(intpend_val & ~(1L<<CLK_ERR_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED CLK_ERR_INTR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<COR_ERR_INTR_A)) ==
+			(intpend_val & ~(1L<<COR_ERR_INTR_A)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED COR_ERR_INTR_A on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<COR_ERR_INTR_B)) ==
+			(intpend_val & ~(1L<<COR_ERR_INTR_B)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED COR_ERR_INTR_B on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<MD_COR_ERR_INTR)) ==
+			(intpend_val & ~(1L<<MD_COR_ERR_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED MD_COR_ERR_INTR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<NI_ERROR_INTR)) ==
+			(intpend_val & ~(1L<<NI_ERROR_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED NI_ERROR_INTR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		if ( (bit = ~(1L<<MSC_PANIC_INTR)) ==
+			(intpend_val & ~(1L<<MSC_PANIC_INTR)) ) {
+			LOCAL_HUB_CLR_INTR(bit);
+			panic("RECEIVED MSC_PANIC_INTR on cpu %d, cnode %d\n",
+				smp_processor_id(), 
+				cpuid_to_cnodeid(smp_processor_id()));
+		}
+		printk("Received SGI_XB_ERROR_IRQ (182) but no intpend1 bits are set???\n");
+		return;
+	default:
+		printk("Received invalid irq in snia_error_intr_handler()/n");
+	}
+}