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Diffstat (limited to '')
-rw-r--r-- | arch/mips/include/asm/sn/intr.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sn/intr.h b/arch/mips/include/asm/sn/intr.h new file mode 100644 index 000000000..3d6954d37 --- /dev/null +++ b/arch/mips/include/asm/sn/intr.h @@ -0,0 +1,112 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1992 - 1997 Silicon Graphics, Inc. + */ +#ifndef __ASM_SN_INTR_H +#define __ASM_SN_INTR_H + +/* + * Macros to manipulate the interrupt register on the calling hub chip. + */ + +#define LOCAL_HUB_SEND_INTR(level) \ + LOCAL_HUB_S(PI_INT_PEND_MOD, (0x100 | (level))) +#define REMOTE_HUB_SEND_INTR(hub, level) \ + REMOTE_HUB_S((hub), PI_INT_PEND_MOD, (0x100 | (level))) + +/* + * When clearing the interrupt, make sure this clear does make it + * to the hub. Otherwise we could end up losing interrupts. + * We do an uncached load of the int_pend0 register to ensure this. + */ + +#define LOCAL_HUB_CLR_INTR(level) \ +do { \ + LOCAL_HUB_S(PI_INT_PEND_MOD, (level)); \ + LOCAL_HUB_L(PI_INT_PEND0); \ +} while (0); + +#define REMOTE_HUB_CLR_INTR(hub, level) \ +do { \ + nasid_t __hub = (hub); \ + \ + REMOTE_HUB_S(__hub, PI_INT_PEND_MOD, (level)); \ + REMOTE_HUB_L(__hub, PI_INT_PEND0); \ +} while (0); + +/* + * Hard-coded interrupt levels: + */ + +/* + * L0 = SW1 + * L1 = SW2 + * L2 = INT_PEND0 + * L3 = INT_PEND1 + * L4 = RTC + * L5 = Profiling Timer + * L6 = Hub Errors + * L7 = Count/Compare (T5 counters) + */ + + +/* + * INT_PEND0 hard-coded bits. + */ + +/* + * INT_PEND0 bits determined by hardware: + */ +#define RESERVED_INTR 0 /* What is this bit? */ +#define GFX_INTR_A 1 +#define GFX_INTR_B 2 +#define PG_MIG_INTR 3 +#define UART_INTR 4 +#define CC_PEND_A 5 +#define CC_PEND_B 6 + +/* + * INT_PEND0 used by the kernel for itself ... + */ +#define CPU_RESCHED_A_IRQ 7 +#define CPU_RESCHED_B_IRQ 8 +#define CPU_CALL_A_IRQ 9 +#define CPU_CALL_B_IRQ 10 + +/* + * INT_PEND1 hard-coded bits: + */ +#define NI_BRDCAST_ERR_A 39 +#define NI_BRDCAST_ERR_B 40 + +#define LLP_PFAIL_INTR_A 41 /* see ml/SN/SN0/sysctlr.c */ +#define LLP_PFAIL_INTR_B 42 + +#define TLB_INTR_A 43 /* used for tlb flush random */ +#define TLB_INTR_B 44 + +#define IP27_INTR_0 45 /* Reserved for PROM use */ +#define IP27_INTR_1 46 /* do not use in Kernel */ +#define IP27_INTR_2 47 +#define IP27_INTR_3 48 +#define IP27_INTR_4 49 +#define IP27_INTR_5 50 +#define IP27_INTR_6 51 +#define IP27_INTR_7 52 + +#define BRIDGE_ERROR_INTR 53 /* Setup by PROM to catch */ + /* Bridge Errors */ +#define DEBUG_INTR_A 54 +#define DEBUG_INTR_B 55 /* Used by symmon to stop all cpus */ +#define IO_ERROR_INTR 57 /* Setup by PROM */ +#define CLK_ERR_INTR 58 +#define COR_ERR_INTR_A 59 +#define COR_ERR_INTR_B 60 +#define MD_COR_ERR_INTR 61 +#define NI_ERROR_INTR 62 +#define MSC_PANIC_INTR 63 + +#endif /* __ASM_SN_INTR_H */ |